Load Control

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Load Control Feature Parameter Description

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WCDMA RAN
RAN15.0

Load Control Feature Parameter Description
Issue

01

Date

2013-04-28

HUAWEI TECHNOLOGIES CO., LTD.

Copyright © Huawei Technologies Co., Ltd. 2013. All rights reserved.
No part of this document may be reproduced or transmitted in any form or by any means without prior written consent of Huawei Technologies Co., Ltd.

Trademarks and Permissions
and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd.
All other trademarks and trade names mentioned in this document are the property of their respective holders.

Notice
The purchased products, services and features are stipulated by the contract made between Huawei and the customer. All or part of the products, services and features described in this document
may not be within the purchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information, and recommendations in this document are provided "AS IS"
without warranties, guarantees or representations of any kind, either express or implied.
The information in this document is subject to change without notice. Every effort has been made in the preparation of this document to ensure accuracy of the contents, but all statements,
information, and recommendations in this document do not constitute a warranty of any kind, express or implied.

Huawei Technologies Co., Ltd.
Address:

Huawei Industrial Base Bantian, Longgang Shenzhen 518129 People's Republic of China

Website:

http://www.huawei.com

Email:

[email protected]

Contents
1 About This Document
1.1 Scope
1.2 Intended Audience
1.3 Change History

2 Overview
2.1 Load Control in Different Scenarios
2.2 Functions of Load Control
2.3 Priorities Involved in Load Control
2.3.1 User Priority
2.3.2 Integrated RAB Priority
2.3.3 Integrated User Priority

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3 Load Measurement
3.1 Load-related Measurement Quantities
3.2 Reporting Period
3.3 Load Measurement Filtering
3.3.1 Layer 3 Filtering on the NodeB Side
3.3.2 Smooth Filtering on the RNC Side
3.4 Auto-Adaptive Background Noise Update Algorithm

4 Intelligent Access Control
4.1 Overview of Intelligent Access Control
4.2 IAC During RRC Connection Setup
4.2.1 Procedure of IAC During RRC Connection Setup
4.2.2 Inter-RAT RRC Redirection Based on Weak Coverage
4.2.3 RRC Redirection Based on Distance
4.2.4 RRC Redirection for Service Steering
4.2.5 RRC DRD
4.2.6 RRC Redirection After DRD Failure
4.2.7 FACH Power Control During RRC Phase
4.3 Directed Retry Decision
4.4 Rate Negotiation at Admission Control
4.4.1 PS MBR Negotiation
4.4.2 PS GBR Negotiation
4.4.3 Initial Rate Negotiation
4.4.4 Target Rate Negotiation
4.5 Admission Decision
4.6 Preemption
4.7 Queuing
4.8 Low-Rate Access of the PS BE Service
4.9 IAC for Emergency Calls
4.9.1 RRC Connection Setup Procedure of Emergency Calls
4.9.2 RAB Process of Emergency Calls

5 Intra-Frequency Load Balancing
5.1 Overview
5.2 TCP-based Intra-Frequency Load Balancing
5.3 RTWP-based Intra-Frequency Load Balancing

6 Load Reshuffling
6.1 Basic Congestion Triggering
6.1.1 Power Resource
6.1.2 Code Resource
6.1.3 Iub Resource
6.1.4 NodeB Credit Resource
6.2 LDR Procedure
6.3 LDR Actions
6.3.1 Load-based Inter-Frequency Handover
6.3.2 BE Rate Reduction
6.3.3 QoS Renegotiation for Uncontrollable Real-Time Services
6.3.4 Inter-RAT Handover in the CS Domain
6.3.5 Inter-RAT Handover in the PS Domain
6.3.6 AMR Rate Reduction
6.3.7 Code Reshuffling
6.3.8 MBMS Power Reduction
6.3.9 PS Inter-RAT Handover from UMTS to LTE
6.3.10 LDR Actions for a UE in the Uplink and Downlink

7 Network Impact
7.1 RRC Redirection for Service Steering
7.1.1 System Capacity
7.1.2 Network Performance
7.2 FACH Power Control of RRC Phase
7.2.1 System Capacity
7.2.2 Network Performance

8 Engineering Guidelines
8.1 WRFD-021104 Emergency Call
8.1.1 Deployment
8.2 WRFD-010506 RAB Quality of Service Renegotiation over Iu Interface
8.2.1 Deployment
8.3 WRFD-020102 Load Measurement
8.3.1 Deployment
8.4 WRFD-020106 Load Reshuffling
8.4.1 Deployment
8.5 WRFD-020108 Code Resource Management
8.5.1 Deployment
8.6 WRFD-020401 Inter-RAT Redirection Based on Distance
8.6.1 Deployment
8.7 WRFD-02040003 Inter System Redirect

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8.7.1 When to Use Inter System Redirect
8.7.2 Required Information
8.7.3 Deployment
8.8 WRFD-020120 Service Steering and Load Sharing in RRC Connection Setup
8.8.1 When to Use Service Steering and Load Sharing in RRC Connection Setup
8.8.2 Required Information
8.8.3 Planning
8.8.4 Deployment
8.8.5 Performance Monitoring
8.8.6 Parameter Optimization
8.8.7 Troubleshooting
8.9 FACH Power Control of RRC Phase
8.9.1 When to Use FACH Power Control of RRC Phase
8.9.2 Required Information
8.9.3 Planning
8.9.4 Deployment
8.9.5 Performance Monitoring
8.9.6 Parameter Optimization
8.9.7 Troubleshooting
8.10 WRFD-020104 Intra Frequency Load Balance
8.10.1 When to Use Intra Frequency Load Balance
8.10.2 Required Information
8.10.3 Deployment
8.11 WRFD-010505 Queuing and Preemption
8.11.1 When to Use Queuing and Preemption
8.11.2 Required Information
8.11.3 Deployment
8.12 WRFD-010507 Rate Negotiation at Admission Control
8.12.1 When to Use Rate Negotiation at Admission Control
8.12.2 Required Information
8.12.3 Deployment

9 Parameters
10 Counters
11 Glossary
12 Reference Documents

1 About This Document
1.1 Scope
This document describes features related to load control and the related parameters.

1.2 Intended Audience
This document is intended for personnel who:
l

Are familiar with WCDMA basics

l

Work with Huawei WCDMA products

1.3 Change History
This section provides information on the changes in different document versions.
There are two types of changes, which are defined as follows:
l

Feature change: refers to a change in the Load Control feature.

l

Editorial change: refers to a change in wording or the addition of information that was not described in the earlier version.

Document Versions
The document issue is as follows:
l

01 (2013-04-28)

l

Draft A (2013-01-30)

01 (2013-04-28)
This is a first commercial release of RAN15.0.
Compared with Draft A(2013-01-30) of RAN15.0, 01 (2013-04-28) of RAN15.0 includes the following changes.
Change Type

Change Description

Parameter Change

Feature change

None

None

Editorial change

Added Table 3-1.

None

WRFD-020103 Inter-Frequency Load Balancing (Load-based Inter-Frequency Handover) is taken out to form a
separate document Inter-Frequency Load Balancing Feature Parameter Description.

None

WRFD-150216 Load Based PS Redirection from UMTS to LTE feature and WRFD-150217 Load Based PS
Handover from UMTS to LTE are taken out to form a separate document Interoperability Between UMTS and LTE
Feature Parameter Description.

None

Anti-Imbalance of the Different Antenna is taken out to form a separate document Anti-Imbalance of the Different
Antenna Feature Parameter Description.

None

WRFD-140217 Inter-Frequency Load Balancing Based on Configurable Load Threshold is taken out to form a
separate document Inter-Frequency Load Balancing Based on Configurable Load Threshold Feature Parameter
Description.

None

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WRFD-02040005 Inter-Frequency Redirection Based on Distance is taken out to form a separate document InterFrequency Redirection Based on Distance Feature Parameter Description.

None

WRFD-150236 Load Based Dynamic Adjustment of PCPICH is taken out to form a separate document Load
Based Dynamic Adjustment of PCPICH Feature Parameter Description.

None

WRFD-020107 Overload Control is taken out to form a separate document Overload Control Feature Parameter
Description.

None

WRFD-020105 Potential User Control is taken out to form a separate document Potential User Control Feature
Parameter Description.

None

Draft A (2013-01-30)
This is a draft for RAN15.0.
Compared with issue 02 (2012-07-20) of RAN14.0, Draft A (2012-12-30) of RAN15.0 includes the following changes.
Change Type

Change Description

Parameter Change

Feature change

Optimized the RRC Redirection for Service Steering feature. Added network impact and
engineering guidelines for this feature. For details, see following sections:

Added the RedirEcN0Thd(BSC6900,BSC6910) parameter

l
l
l

4.2.4 RRC Redirection for Service Steering
7.1 RRC Redirection for Service Steering in 7 Network Impact
8.8 WRFD-020120 Service Steering and Load Sharing in RRC Connection Setup in 8
Engineering Guidelines.

Added the FACH power control of RRC phase function. For details, see following sections:
l
l
l

4.2.7 FACH Power Control During RRC Phase
7.2 FACH Power Control of RRC Phase in 7 Network Impact
8.9 FACH Power Control of RRC Phase in 8 Engineering Guidelines.

Added the following parameters:
l
l
l
l
l
l
l
l
l

Added the initial rate negotiation for CS+PS BE combined services function. For details, see
Initial Rate Negotiation for the PS BE Service in CS+PS Combined Services in section 4.4
Rate Negotiation at Admission Control.

Added the following parameters:
l
l
l
l

BeInitBitrateTypeforCsPs(BSC6900,BSC6910)
ReservedSwitch0(BSC6900,BSC6910):
RESERVED_SWITCH_0_BIT11
ReservedSwitch0(BSC6900,BSC6910):
RESERVED_SWITCH_0_BIT15
ReservedSwitch0(BSC6900,BSC6910):
RESERVED_SWITCH_0_BIT28

Added descriptions about the Macro & Micro Joint Inter-frequency Redirection feature. For
details, see 4.2.1 Procedure of IAC During RRC Connection Setup.

None

Updated descriptions about queuing and preemption for DB-HSDPA and 4C-HSDPA services.
For details, see section 4.6 Preemption and section 4.7 Queuing.

None

Introduced the CE resource preemption enhancement function. For details, see the following
(sub)sections:

Added the PreemptEnhSwitch(BSC6900,BSC6910):
PREEMPT_ENH_NODEB_PREEMPT_CE_SWITCH
parameter

l
l

Editorial change

T381(BSC6900,BSC6910)
N381(BSC6900,BSC6910)
T300(BSC6900,BSC6910)
RrcCause(BSC6900,BSC6910)
FACHPower4RRCRepEcNoThd(BSC6900,BSC6910)
MaxFachPower(BSC6900,BSC6910)
SIGRBIND(BSC6900,BSC6910)
TrChId(BSC6900,BSC6910)
OffsetFACHPower(BSC6900,BSC6910)

Forced Preemption in section 4.6 Preemption.
8.11 WRFD-010505 Queuing and Preemption

Changed the algorithm of the WRFD-020104 Intra-Frequency Load Balance feature to TCPbased intra-frequency load balancing. For details, see section 5 Intra-Frequency Load
Balancing.

None

None

None

2 Overview
The WCDMA system is a self-interfering system. As the load of the system increases, the interference rises. A relatively high interference can affect the coverage of cells and QoS
of ongoing services. To solve this problem, the load control function is introduced to control the load in a cell.
Load control aims to maximize the system capacity while ensuring coverage and QoS by controlling the key resources, such as power, downlink channelization codes, channel
elements (CEs), and Iub transmission resources.
Each cell has its own set of load control functions that are responsible for monitoring and controlling the resources of the cell. The load control functions monitor the load of a cell
through load measurement, make the admission decision for services through intelligent access control and call admission control, and reduce congestion in the cell.

2.1 Load Control in Different Scenarios
Different load control functions are used, as shown in the following figure.
Figure 2-1 Load control functions in different UE access phases

The load control functions that are applied are as follows:
l

Before UE access: Potential User Control (PUC)

l

During UE access: Intelligent Access Control (IAC) and Call Admission Control (CAC)

l

After UE access: Inter-Frequency Load Balancing Based on Configurable Load Threshold(CLB), intra-frequency Load Balancing (LDB), Load Reshuffling (LDR), and Overload
Control (OLC)

The following sections provide detailed information about the load control functions performed in these phases.

2.2 Functions of Load Control
Load control is implemented on the RNC after obtaining measurement reports from the NodeB.

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Figure 2-2 Load control function in the WCDMA system

The load control functions are described as follows:
l

PUC
The function of PUC is to balance traffic load among cells on different frequencies. The RNC uses PUC to modify cell selection and reselection parameters, and broadcasts
them through system information. In this way, UEs are directed to the lightly loaded cells. The UEs can be in idle mode, CELL_FACH state, CELL_PCH state, or URA_PCH
state.
For the details of PUC, see Potential User Control Feature Parameter Description.

l

IAC
The function of IAC is to increase the access success rate with the current QoS guaranteed through rate negotiation, queuing, preemption, and directed retry decision (DRD).
For details about DRD, see Directed Retry Decision Feature Parameter Description.

l

CAC
The function of CAC is to decide whether to accept resource requests from UEs, such as access, reconfiguration, and handover requests, depending on the resource status of
the cell.
For details about CAC, see Call Admission Control Feature Parameter Description.

l

CLB
The function of CLB is to initiate the procedure of inter-frequency load balancing when a cell is not congested, thereby ensuring load balancing among cells. This function
supports intra- and inter-RNC load balancing. CLB may occur before LDR. That is, the RNC can perform inter-frequency load balancing before a cell is congested.
For details, see Inter-Frequency Load Balancing Based on Configurable Load Threshold Feature Parameter Description.

l

LDB
The function of intra-frequency LDB is to balance the cell load between intra-frequency neighboring cells to improve resource utilization. When the load of a cell increases, the
cell reduces its coverage to decrease its load. When the load of a cell decreases, the cell extends its coverage so that that cell can take over some traffic from its neighboring
cells.

l

LDR
The function of LDR is to reduce the cell load when the cell enters the basic congestion state. The purpose of LDR is to increase the access success rate by taking the
following actions:

l

n

Load-based inter-frequency handover

n

BE service rate reduction

n

QoS renegotiation for uncontrollable real-time services

n

Load-based CS inter-RAT handover

n

Load-based PS inter-RAT handover

n

AMR voice service rate reduction

n

Code reshuffling

n

MBMS power reduction

n

PS inter-RAT handover from UMTS to LTE

OLC
The function of OLC is to reduce the cell load rapidly when the cell is overloaded. The purpose of OLC is to ensure the system stability and the QoS of most UEs in the
following ways:
n

Restricting the Transport Format (TF) of the BE service

n

Switching BE services to common channels

n

Adjusting the maximum transmit power of FACHs

n

Releasing RABs

For details about OLC, see Overload Control Feature Parameter Description.
Table 2-1 lists the resources that are involved in different load control functions.
Table 2-1 Resources involved in different load control functions
Load Control Function Resources
Power

Code

NodeB Credit

Iub Bandwidth

CAC









IAC









PUC



-

-

-

CLB







-

LDB



-

-

-

LDR









OLC



-

-



NOTE:
-: not involved
√: involved

2.3 Priorities Involved in Load Control
Different types of priorities are used in load control to preferentially ensure the QoS of high priority services or users.
The priorities involved in load control are user priority, integrated radio access bearer (RAB) priority, and integrated user priority.

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2.3.1 User Priority
User priorities are adopted to provide differentiated services for users. For ease of application, the RNC maps the 15 levels of Allocation/Retention Priority (ARP) that is carried in
the RAB ASSIGNMENT REQUEST message from the core network (CN) onto three user priorities, that is, gold (high priority), silver (medium priority), and copper (low priority).
The relationship between user priority and ARP can be set by running the SET UUSERPRIORITY command. Table 2-2 shows the typical relationship between user priorities and
ARPs.
Table 2-2 Typical relationship between user priorities and ARPs
ARP

1

2

3

4

5

6

7

8

User Priority Gold

Gold

Gold

Gold

Gold

Silver

Silver

Silver

ARP

10

11

12

13

14

15

Silver

Copper

Copper

Copper

Copper

Copper

9

User Priority Silver

NOTE:
If ARP is not received in messages from the Iu interface, the user priority is copper.

2.3.2 Integrated RAB Priority
The priority of an RAB is determined by its traffic class, ARP, and carrier type. Such a priority is called integrated RAB priority. When resources are insufficient, services with the
highest integrated priority are preferentially processed.
The values of integrated RAB priority are determined based on the integrated priority configuration reference parameter PriorityReference(BSC6900,BSC6910):
l

l

If PriorityReference(BSC6900,BSC6910) is set to Traffic Class, the integrated priority abides by the following rules:
n

Traffic classes: conversational > streaming > interactive > background

n

Services of the same traffic class are prioritized based on ARP, that is, ARP1 > ARP2 > ARP3 > ... > ARP14 > ARP15

n

Service of the same traffic class and ARP (only for interactive services) are prioritized based on Traffic Handling Priority (THP) that is carried in the RAB ASSIGNMENT
REQUEST message, that is, THP1 > THP2 > THP3 > ... > THP14 > THP15

n

Services of the same traffic class, ARP and THP (only for interactive services) are prioritized as follows: High Speed Packet Access (HSPA) or Dedicated Channel (DCH)
service are preferred depending on CarrierTypePriorInd(BSC6900,BSC6910).

If PriorityReference(BSC6900,BSC6910) is set to ARP, the integrated priority abides by the following rules:
n

ARP: ARP1 > ARP2 > ARP3 > ... > ARP14 > ARP15

n

Services of the same ARP: priority based on traffic classes, that is, conversational > streaming > interactive > background

n

Only for the interactive service of the same ARP value: priority based on Traffic Handling Priority (THP), that is, THP1 > THP2 > THP3 > ... > THP14 > THP15

n

Services of the same ARP, traffic class and THP (only for interactive services): HSPA or DCH service are preferred depending on CarrierTypePriorInd
(BSC6900,BSC6910).

2.3.3 Integrated User Priority
A user may have multiple RABs, and the RABs may have different priorities. In this case, the highest priority is considered as the priority of this user. Such a priority is called the
integrated user priority. Integrated user priority is used in user-specific load control. For example, the selection of R99 users during preemption, the selection of users during loadbased inter-frequency handover for LDR, and the selection of users during switching of BE services to common channels are performed based on the integrated user priority.

3 Load Measurement
This chapter describes the WRFD-020102 Load Measurement feature.
The load control functions, such as OLC and CAC, use load measurement values in the uplink and the downlink. A common Load Measurement (LDM) function is used to control
load measurement in the uplink and the downlink separately.
Load measurement is implemented by the NodeB. The filtering of measurement quantities is implemented by the NodeB and the RNC.

3.1 Load-related Measurement Quantities
The major load-related measurement quantities are as follows:
l

Uplink Received Total Wideband Power (RTWP)
n

When the feature WRFD-020137 Dual-Threshold Scheduling with HSUPA Interference Cancellation is not enabled, the RNC uses the measured RTWP value.

n

When the feature WRFD-020137 Dual-Threshold Scheduling with HSUPA Interference Cancellation is enabled, the RNC uses the RTWP value after interference
cancellation if UlIcLdcOptSwitch(BSC6900,BSC6910) is set to OFF; the RNC uses the larger one between the following if UlIcLdcOptSwitch(BSC6900,BSC6910) is
set to ON:
Measured RTWP value – MaxDeltaOfTargetRoT
RTWP value after interference cancellation
For details about the feature WRFD-020137 Dual-Threshold Scheduling with HSUPA Interference Cancellation, see HSUPA Feature Parameter Description.

NOTE:
OLC always uses the measured RTWP value regardless of if the RNC uses the measured RTWP value. For details about OLC, see Overload Control Feature Parameter
Description.
l

Downlink Transmitted Carrier Power (TCP)

l

Non-HSPA power: TCP excluding the power used for transmission on HSPA channels. For detailed information about HSPA channels, see HSDPA Feature Parameter
Description and HSUPA Feature Parameter Description.

l

Power load states are used to determine downlink cell load as show in Table 3-1. Downlink load in an HSDPA cell is the proportion of non-HSPA power consumption as
against the maximum transmit power of this cell MaxTxPower(BSC6900,BSC6910). Downlink load in an R99 cell is the proportion of TCP as against the maximum transmit
power of this cell.

NOTE:

Table 3-1 Downlink power load state
Load State

Load State Transition
(Transitions of load state are controlled by thresholds. A 10% hysteresis is added to the thresholds to avoid ping-pong state transitions)

Light State

If the load is larger than 30%+10%, the state transits from light state to normal state.

Normal State

If the load is smaller than 30%-10%, the state transits from normal state to light state.
If the load is larger than 50%+10%, the state transits from normal state to loaded state.

Loaded State

If the load is smaller than 50%-10%, the state transits from loaded state to normal state.
If the load is larger than 50%+10%, the state transits from loaded state to heavy state.

Heavy State

If the load is smaller than 70%-10%, the state transits from heavy state to loaded state.

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If the load is larger than 95%, the state transits from heavy state to overload state.
Overload State

If the load is smaller than 95%-10%, the state transits from overload state to heavy state.

l

Provided Bit Rate (PBR) on HS-DSCH. For details about PBR, see 3GPP 25.321.

l

Power Requirement for GBR (GBP) on HS-DSCH: minimum power required to ensure the GBR on HS-DSCH

l

PBR on E-DCH Light State, Normal State, Loaded State, Heavy State, Overload State

l

Received Scheduled E-DCH Power Share (RSEPS): power of the E-DCH scheduling service in the serving cell

l

Uplink total load: sum of R99 service load, HSUPA service load, and control channel load. The uplink total load measurement depends on the NodeB hardware.

l

Uplink minimum guaranteed load: sum of R99 service load, HSUPA service load required by the HSUPA GBR, and control channel load. The uplink minimum guaranteed load
measurement depends on the NodeB hardware.
The HSUPA GBR is calculated as follows:
n

If the function uplink enhanced L2 is disabled, GBR = max (bit rate of one RLC PDU, GBR).

n

If the function uplink enhanced L2 is enabled, GBR = max (bit rate of the smallest RLC PDU, GBR).

The NodeB measures the major factors related to load control. After layer 1 and layer 3 filtering, the measurement values are reported to the RNC through the COMMON
MEASUREMENT REPORT message.
The RNC performs smooth filtering of the measurement values reported from the NodeB and then obtains the measurement values, which further serve as data input for the load
control algorithms.
The RNC calculates the actual uplink load based on the filtered RTWP, uplink total load, and uplink minimum guaranteed load. The actual uplink load is one of the factors for the
uplink load-related algorithms.
NOTE:
If the interference of antennas in one NodeB is imbalanced, the measured RTWP may be inaccurate. In this situation, the anti-imbalance of the different antenna algorithm can be
used to correct the inaccurate measurement results and reflect the actual cell load. For details, see Anti-Imbalance of the Different Antenna Feature Parameter Description
Figure 3-1 shows the LDM procedure.
Figure 3-1 LDM procedure

3.2 Reporting Period
The NodeB periodically reports each measurement quantity to the RNC. The following table lists the reporting period parameters for setting different measurement quantities.
Measurement Quantity

Reporting Period Parameter

RTWP

ChoiceRprtUnitForUlBasicMeas(BSC6900,BSC6910)
TenMsecForUlBasicMeas(BSC6900,BSC6910)
MinForUlBasicMeas(BSC6900,BSC6910)
ChoiceRprtUnitForDlBasicMeas(BSC6900,BSC6910)
TenMsecForDlBasicMeas(BSC6900,BSC6910)
MinForDlBasicMeas(BSC6900,BSC6910)

RSEPS
TCP
Non-HSPA power
Uplink total load
Uplink minimum guaranteed load
GBP

ChoiceRprtUnitForHsdpaPwrMeas(BSC6900,BSC6910)
TenMsecForHsdpaPwrMeas(BSC6900,BSC6910)
MinForHsdpaPwrMeas(BSC6900,BSC6910)

HS-DSCH PBR

ChoiceRprtUnitForHsdpaRateMeas(BSC6900,BSC6910)
TenMsecForHsdpaPrvidRateMeas(BSC6900,BSC6910)
MinForHsdpaPrvidRateMeas(BSC6900,BSC6910)

E-DCH PBR

ChoiceRprtUnitForHsupaRateMeas(BSC6900,BSC6910)
TenMsecForHsupaPrvidRateMeas(BSC6900,BSC6910)
MinForHsupaPrvidRateMeas(BSC6900,BSC6910)

3.3 Load Measurement Filtering
3.3.1 Layer 3 Filtering on the NodeB Side
The following figure shows the measurement model at the physical layer, which complies with 3GPP 25.302.
Figure 3-2 Measurement model at the physical layer

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In Figure 3-2:
l

A is the sampling value of the measurement.

l

B is the measurement value after layer 1 filtering.

l

C is the measurement value after layer 3 filtering.

l

C' is another measurement value (if any) for measurement evaluation.

l

D is the reported measurement value.

Layer 1 filtering is not standardized by protocols. It depends on vendor equipment. Layer 3 filtering is standardized. The filtering effect is controlled by a higher layer. The alpha
filtering that applies to layer 3 filtering is calculated using the following formula:

where
l

Fn is the new post-filtering measurement value.

l

Fn-1 is the last post-filtering measurement value.

l

Mn is the new measurement value from the physical layer.

l

α = (1/2) k/2, k is the measure filter coefficient which is specified as follows:
n

For load control algorithms (excluding OLC), k is specified by the UlBasicCommMeasFilterCoeff(BSC6900,BSC6910) or DlBasicCommMeasFilterCoeff
(BSC6900,BSC6910) parameter.

n

For OLC algorithm, k is specified by the UlOlcMeasFilterCoeff(BSC6900,BSC6910) or DlOlcMeasFilterCoeff(BSC6900,BSC6910) parameter.

3.3.2 Smooth Filtering on the RNC Side
After the RNC receives the measurement report, it filters the measurement value using the smooth window method.
If the reported measurement value is Qn and the length of the smooth window is N, then the filtered measurement value is

LDM must apply different smooth window length and measurement periods to PUC, CAC, LDR, and OLC to obtain appropriate filtered values.
The following table lists the smooth window length parameters that are used to set different functions.
Table 3-2 The smooth window length parameters for setting different functions
FunctionSmooth Window Length Parameter Function
PucAvgFilterLen(BSC6900,BSC6910)

PUC

UlCacAvgFilterLen(BSC6900,BSC6910)
DlCacAvgFilterLen(BSC6900,BSC6910)

CAC

LdbAvgFilterLen(BSC6900,BSC6910)

LDB

UlLdrAvgFilterLen(BSC6900,BSC6910)
DlLdrAvgFilterLen(BSC6900,BSC6910)

LDR

UlOlcAvgFilterLen(BSC6900,BSC6910)
DlOlcAvgFilterLen(BSC6900,BSC6910)

OLC

NOTE:
GBP measurements have the same smooth window length in all related functions. The filter length for GBP measurement is specified by the HsdpaNeedPwrFilterLen
(BSC6900,BSC6910) parameter.
The length of the PBR smooth filter window is specified by the HsdpaPrvidBitRateFilterLen(BSC6900,BSC6910) / HsupaPrvidBitRateFilterLen(BSC6900,BSC6910)
parameter.
CLB measurements have the same smooth window length as LDR.

3.4 Auto-Adaptive Background Noise Update Algorithm
Uplink (UL) background noises are sensitive to environmental conditions, and the fluctuation of the background noises has a negative impact on the RTWP measurement value.
Therefore, the LDM function uses an auto-adaptive update algorithm to restrict the background noise within a specified range.
l

If the temperature in the equipment room is constant, the background noise changes slightly. In this case, the background noise requires no adjustment after initial correction.

l

If the temperature in the equipment room varies with the ambient temperature, the background noise changes greatly. In this case, the background noise requires autoadaptive upgrade.

The following figure shows the flow chart of auto-adaptive background noise update, which is enabled by the BGNSwitch(BSC6900,BSC6910) parameter.
NOTE:
BGNSwitch(BSC6900,BSC6910) is set to ON by default.
Figure 3-3 Flow chart of auto-adaptive background noise update

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NOTE:
l

The Alpha filter formula is: Fn = (1 - α) x Fn-1 + α x Mn (n≥1). For details about this formula, see section 3.3.1 Layer 3 Filtering on the NodeB Side

l

Counting threshold = (Duration of background noise)/(RTWP reporting period). The duration of background noise is used in auto-adaptive upgrade decision and is set by the
BGNAdjustTimeLen(BSC6900,BSC6910) parameter. For the setting of RTWP reporting period, see section 3.2 Reporting Period.

The procedure for auto-adaptive background noise update is as follows:
1. The RNC initializes the counter and filter that are used for auto-adaptive upgrade and sets the initial value (F0) of the filter to BackgroundNoise(BSC6900,BSC6910).
2. The RNC receives the latest RTWP measurement value and uplink total load measurement value from the physical layer.
3. The RNC checks whether the current time is within the effective period of the algorithm, that is, whether the current time is later than BgnStartTime(BSC6900,BSC6910) and
earlier than BgnEndTime(BSC6900,BSC6910).
If the current time is within the effective period, then:
l

If BGNOptSwitch(BSC6900,BSC6910) is set to OFF, Mn = the latest RTWP measurement value. The procedure goes to 4 (a).

l

If BGNOptSwitch(BSC6900,BSC6910) is set to ON, Mn = the latest RTWP measurement value - uplink total load measurement value. The procedure goes to 4 (b).
If the current time is not within the effective period, the RNC waits for the next RTWP measurement value and uplink total load measurement value.
NOTE:

The uplink total load measurement depends on the NodeB hardware. For details, see 3.1 Load-related Measurement Quantities. When the uplink total load measurement is
invalid, background noise update is not performed. The initial value of the filter is set to the current background noise.

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4. The RNC does the following:
(a). The RNC determines whether the current Equivalent Number of Users (ENU) in the cell is greater than the value of BGNEqUserNumThd(BSC6900,BSC6910):
l

If the current ENU is greater than the value of BGNEqUserNumThd(BSC6900,BSC6910), the RNC infers that Mn includes other noises in addition to the background
noise, and does not feed Mn to the filter. In addition, the RNC sets the counter to zero, retains the current background noise, and sets the initial value of the filter to the
current background noise. The background noise update procedure ends. The RNC waits for the next RTWP measurement value and uplink total load measurement
value.

l

If the current ENU in the cell is smaller than or equal to the value of BGNEqUserNumThd(BSC6900,BSC6910), the RNC feeds Mn to the filter and performs the next
step.
(b). The RNC determines whether the uplink total load measurement value is greater than the value of BGNULLoadThd(BSC6900,BSC6910):

l

If the latest uplink total load measurement value is greater than the value of BGNULLoadThd(BSC6900,BSC6910), the RNC sets the counter to zero, retains the current
background noise, and sets the initial value of the filter to the current background noise. The background noise update procedure ends. The RNC waits for the next
RTWP measurement value and uplink total load measurement value.

l

If the latest uplink total load measurement value is smaller than or equal to the value of BGNULLoadThd(BSC6900,BSC6910), the RNC feeds Mn to the filter and
performs the next step.

5. The RNC checks whether Mn - Fn-1 is smaller than the value of BgnAbnormalThd(BSC6900,BSC6910). If it is smaller than this threshold value, the RNC increments the
counter by one, calculates Fn according to the Alpha filter formula, and performs the next step. Otherwise, the RNC waits for the next RTWP measurement value.
6. The RNC checks whether the counter reaches the counting threshold. If it reaches the counting threshold, the RNC performs the next step. Otherwise, the RNC waits for the
next RTWP measurement value.
7. The RNC checks whether Fn - BackgroundNoise(BSC6900,BSC6910) is smaller than the value of BgnAbnormalThd(BSC6900,BSC6910). The purpose is to prevent
burst interference and RTWP spike. If it is smaller than the value of BgnAbnormalThd(BSC6900,BSC6910), the RNC performs the next step. Otherwise, the RNC sets the
counter to zero and waits for the next RTWP measurement value.
8. The RNC checks whether Fn - current background noise is greater than the value of BgnUpdateThd(BSC6900,BSC6910). The purpose is to prevent frequent background
noise upgrades on the Iub interface. If it is greater than the value of BgnUpdateThd(BSC6900,BSC6910) the RNC sets the current background noise to Fn, sets the counter
to zero, and waits for the next RTWP measurement value. Otherwise, the RNC sets the counter to zero and waits for the next RTWP measurement value.

4 Intelligent Access Control
4.1 Overview of Intelligent Access Control
IAC is used to increase the access success rate, that is, RRC connection success rate and RAB setup success rate.
There are two types of IAC, namely, IAC for RRC connection processing and IAC for RAB connection processing.
l

IAC for RRC connection processing is used to select a suitable cell for a UE to access through redirection and RRC DRD. It also implements load balancing and service
steering.

l

IAC for RAB connection processing is used to select a suitable cell for a UE to access through DRD and CAC. It also implements load balancing and service steering.
Features such as preemption, queuing, and low-rate access are used to further improve the RAB setup success rate.

In addition, IAC provides differentiated services for users with different priorities. For example, when the system resources are insufficient, procedures such as direct admission,
preemption, and redirection can be performed to ensure access for emergency calls to the network.
Figure 4-1 shows a typical procedure for service access control.
Figure 4-1 Service access control procedure

As shown in Figure 4-1, the procedure for service access includes the procedures for RRC connection setup and RAB setup. The successful setup of the RRC connection is one of
the prerequisites for the RAB setup.
During the RRC connection processing, the RNC performs the following steps.
1. Performs RRC redirection based on distance (only for UE-originating AMR services). For details, see 4.2.3 RRC Redirection Based on Distance. If the RNC decides to
implement UE access from another cell, it sends an RRC connection reject message to the UE; otherwise, the RNC performs the next step.
2. Performs RRC redirection for service steering. For details, see section 4.2.4 RRC Redirection for Service Steering.
l

If the RNC decides to implement UE access from the current cell, it then makes a resource-based admission decision. If the resource-based admission fails, the RNC
performs DRD and redirection.

l

If the RNC decides to implement UE access from another cell, it then sends an RRC connection reject message to the UE. The message carries the information about
the cell and instructs the UE to set up an RRC connection to the cell.
For details, see section 4.2 IAC During RRC Connection Setup.

During the RAB connection processing, the RNC performs the following steps:
1. Performs inter-frequency DRD to select a suitable cell for service steering or load balancing. For details about DRD, see Directed Retry Decision Feature Parameter
Description.
2. Performs rate negotiation according to the service requested by the UE. For details, see section 4.4 Rate Negotiation at Admission Control.

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3. Makes cell resource-based admission decision. If the admission is successful, UE access is granted. Otherwise, the RNC performs the next step. For details about admission
decision, see Call Admission Control Feature Parameter Description.
4. Selects a suitable cell from the cells where no admission attempt has been made, based on the inter-frequency DRD, and then performs step 5. If all the attempts fail, the
RNC performs the next step.
5. Selects a suitable cell according to the inter-RAT DRD. If the inter-RAT admission is successful, UE access is granted in the inter-RAT cell. If the inter-RAT DRD fails or is not
supported, the RNC performs the next step.
6. Makes a preemption attempt. For details about preemption, see section 4.6 Preemption. If the preemption is successful, UE access is granted. If the preemption fails or is not
supported, the RNC performs the next step.
7. Makes a queuing attempt. For details about queuing, see section 4.7 Queuing.
8. If the queuing is successful, UE access is granted. If the queuing fails or is not supported, the RNC performs the next step.
9. Performs low-rate access. For details about low-rate access, see section 4.8 Low-Rate Access of the PS BE Service. If the low-rate access is admitted, UE access is granted.
If the low-rate access fails, the RNC performs the next step.
10. Rejects UE access.
NOTE:
After the admission attempts of an HSPA service request fail in all candidate cells, the service falls back to the DCH for network access.
Table 4-1 IAC procedure supported by services
Service Type

Low-Rate
Access

Rate Negotiation

Preemption

MBR
Negotiation

GBR
Negotiation

Initial Rate
Negotiation

Target Rate
Negotiation

Queuing

DRD
InterFrequency

Inter-RAT

DCH



















HSUPA

-















-

HSDPA

-





-

-







-

4.2 IAC During RRC Connection Setup
4.2.1 Procedure of IAC During RRC Connection Setup
Before a new service is admitted to the network, an RRC connection must be set up.
As shown in Figure 4-2, when the switch DrSwitch(BSC6900,BSC6910): DR_RRC_DRD_SWITCH is set to ON, the RRC connection setup procedure is performed as follows:
NOTE:
Inter-RAT RRC redirection based on weak coverage is controlled by the switch PerfEnhanceSwitch: PERFENH_RRC_WEAK_REDIR_SWITCH, not by the switch DrSwitch:
DR_RRC_DRD_SWITCH.
Figure 4-2 RRC connection setup procedure

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After receiving an RRC CONNECTION REQUEST message from the UE, the RNC performs inter-RAT RRC redirection based on weak coverage if
PERFENH_RRC_WEAK_REDIR_SWITCH under the PerfEnhanceSwitch(BSC6900,BSC6910) parameter is selected. If this check box is not selected, the RNC performs the
RRC redirection based on distance (only for UE-originating AMR services). For details, see section 4.2.3 RRC Redirection Based on Distance. If the RNC decides to implement UE
access from another cell, it sends an RRC connection reject message to the UE; otherwise, the RNC performs the next step.
Then, the RNC uses the RRC redirection algorithm for service steering and Macro & Micro Joint Inter-Frequency Redirection to determine whether the UE can access the network
from the current cell:
l

If the UE can access the network from the current cell according to the decision result, the RNC uses the CAC algorithm to determine whether an RRC connection can be set
up between the UE and the current cell.
n

If the RRC connection can be set up between the UE and the current cell, the RNC sends an RRC CONNECTION SETUP message to the UE.

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l

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If the RRC connection cannot be set up between the UE and the current cell, the RNC attempts to select a cell for RRC connection setup through RRC DRD. If the RRC
DRD fails, RRC redirection will be performed.

If the RNC determines to implement access for the UE from another cell, the RNC sends an RRC CONNECTION REJECT message to the UE. The message carries the
information about this cell.

DrSwitch(BSC6900,BSC6910): DR_RRC_DRD_SWITCH is the general switch of the following six algorithms:
l

Inter-RAT RRC Redirection Based on Distance

l

Inter-Frequency RRC Redirection Based on Distance

l

4.2.4 RRC Redirection for Service Steering

l

Macro & Micro Joint Inter-frequency Redirection

l

4.2.5 RRC DRD

l

4.2.6 RRC Redirection After DRD Failure

Before enabling the six algorithms, set DrSwitch(BSC6900,BSC6910): DR_RRC_DRD_SWITCH to ON.
NOTE:
For details about the Macro and Micro Joint Inter-Frequency Redirection feature, see Macro and Micro Co-carrier Uplink Interference Control.

4.2.2 Inter-RAT RRC Redirection Based on Weak Coverage
In weak-coverage areas, the UE access success rate is low and the call drop possibility is high. In areas where the GSM coverage is better than the UMTS coverage, using interRAT RRC redirection based on weak coverage can redirect UEs from the UMTS to the GSM network to improve the UE access success rate and reduce the call drop rate.
Inter-RAT RRC redirection based on weak coverage is recommended when there is only a small proportion of UEs that do not support inter-RAT redirections. The parameter
PerfEnhanceSwitch(BSC6900,BSC6910): PERFENH_RRC_WEAK_REDIR_SWITCH specifies whether to enable inter-RAT RRC redirection based on weak coverage.
The procedure for inter-RAT RRC redirection based on weak coverage is as follows:
1. Upon receiving an RRC CONNECTION REQUEST message from a UE, the RNC checks the setting of PerfEnhanceSwitch(BSC6900,BSC6910):
PERFENH_RRC_WEAK_REDIR_SWITCH.
l

If PERFENH_RRC_WEAK_REDIR_SWITCH under the PerfEnhanceSwitch(BSC6900,BSC6910) parameter is not selected, the RNC does not perform inter-RAT RRC
redirection based on weak coverage. The RRC connection setup request is then processed in the current cell.

l

If PERFENH_RRC_WEAK_REDIR_SWITCH under the PerfEnhanceSwitch(BSC6900,BSC6910) parameter is selected, the procedure goes to the next step.

2. The RNC obtains the Ec/N0 value of the current cell from the RACH Measurement Report IE in the RRC CONNECTION REQUEST message.
l

If the Ec/N0 value is greater than or equal to the value of WeakCovRrcRedirEcNoThs, the RNC does not perform inter-RAT RRC redirection based on weak coverage.
The RRC connection setup request is then processed in the current cell.

l

If the Ec/N0 value is smaller than the value of WeakCovRrcRedirEcNoThs(BSC6900,BSC6910), the procedure goes to the next step.

3. The RNC sends the UE an RRC CONNECTION REJECT message containing information on the neighboring GSM cells of the current cell.
NOTE:
If the current cell does not have any neighboring GSM cell or the IE "RACH Measurement Report" does not contain the Ec/N0 value, inter-RAT RRC redirection based on weak
coverage is not performed.

4.2.3 RRC Redirection Based on Distance
Inter-RAT RRC Redirection Based on Distance
This section describes the WRFD-020401 Inter-RAT Redirection Based on Distance feature.
A UE may receive signals from a distant cell and subsequently accesses the cell. The cells that are adjacent to this cell, however, are not configured as its neighboring cells.
Therefore, if the UE moves out of this cell, call drops may occur. To solve this problem, RRC Inter-RAT redirection based on distance is introduced.
The RRC Inter-RAT redirection based on distance technique estimates the distance between the UE and the cell center by considering the propagation delay. Based on the
estimation, the RNC determines whether to perform RRC Inter-RAT redirection. The propagation delay is the one-way propagation delay of the radio signal from the UE to the
NodeB. The NodeB measures the propagation delay and then reports it to the RNC. The propagation delay is in direct proportion to the distance between the UE and the NodeB.
The switch of RRC Inter-RAT redirection based on distance can be set through the RedirSwitch(BSC6900,BSC6910) parameter. RRC Inter-RAT redirection based on distance is
applicable only to the UE-originating AMR services.
The procedure for RRC Inter-RAT redirection based on distance is as follows:
1. Upon receiving an RRC CONNECTION REQUEST message from the UE, the RNC checks whether the requested service is a UE-originating AMR service. If yes, the RNC
performs the next step. Otherwise, the RNC does not perform RRC Inter-RAT redirection based on distance, and handles the RRC connection setup request of the UE in the
current cell.
2. The RNC obtains the propagation delay from the NodeB and compares it with DelayThs(BSC6900,BSC6910).
l

If the propagation delay is greater than DelayThs(BSC6900,BSC6910), the RNC performs the next step.

l

If the propagation delay is equal to or less than DelayThs(BSC6900,BSC6910), the RNC does not perform RRC Inter-RAT redirection based on distance, and handles
the RRC connection setup request of the UE in the current cell.

3. The RNC checks the load status of the current cell to determine whether to perform RRC Inter-RAT redirection based on distance.
l

If the cell is in the normal state, the RNC generates a random value ranging from 0 to 1 and compares the value with the RedirFactorOfNorm(BSC6900,BSC6910)
parameter. If the random value is equal to or smaller than the parameter, the RNC performs the next step. Otherwise, the RNC does not perform RRC Inter-RAT
redirection based on distance, and handles the RRC connection setup request of the UE in the current cell.

l

If the cell is in the basic congestion state or is overloaded, the RNC generates a random value ranging from 0 to 1 and compares the value with the RedirFactorOfLDR
(BSC6900,BSC6910) parameter. If the random value is equal to or smaller than the parameter, the RNC performs the next step. Otherwise, the RNC does not perform
RRC Inter-RAT redirection based on distance, and handles the RRC connection setup request of the UE in the current cell.

4. The RNC sends the UE an RRC CONNECTION REJECT message containing information about the neighboring GSM cells of the current cell.
NOTE:
If the current cell does not have any neighboring GSM cell, the UE selects a proper cell without the RNC participation.

Inter-Frequency RRC Redirection Based on Distance
For details of the WRFD-02040005 Inter-Frequency Redirection Based on Distance, see Inter-Frequency Redirection Based on Distance Feature Parameter Description.

4.2.4 RRC Redirection for Service Steering
Overview
This section describes the WRFD-020120 Service Steering and Load Sharing in RRC Connection Setup feature.
RRC redirection for service steering is used to enable successful RRC connection setup by selecting an appropriate cell for the UE based on the requested service. This algorithm
does not apply to combined services.
During the RRC connection setup, the RNC implements service steering between inter-frequency or inter-RAT cells according to the service type requested by the UE. In addition,

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the RNC considers the load of the cell for access and the redirection factors to control the percentages for load sharing.

Procedure of RRC Redirection for Service Steering
The procedure for RRC redirection for service steering is as follows:
1. The RNC obtains the information about the service requested by the UE and the capability of the UE.
l

If DR_RRC_DRD_SWITCH of the parameter DrSwitch(BSC6900,BSC6910) is set to 1, the RNC tries to identify the service type requested by the UE. If the RNC
succeeds in identifying the service type requested by the UE and the switch of RRC direction for service steering RedirSwitch(BSC6900,BSC6910) is set to
ONLY_TO_INTER_FREQUENCY or ONLY_TO_INTER_RAT, the RNC performs the next step. Otherwise, the RNC handles the RRC connection setup request of the
UE in the current cell.

l

If the DR_ RRC_DRD_SWITCH of the parameter DrSwitch(BSC6900,BSC6910) is set to 0, the RNC handles the RRC connection setup request of the UE in the current
cell.

2. The RNC takes the corresponding actions based on the settings of RedirSwitch(BSC6900,BSC6910) and SCellLoadBsdRedirSwitch(BSC6900,BSC6910):
l

If RedirSwitch(BSC6900,BSC6910) is set to ONLY_TO_INTER_FREQUENCY and SCellLoadBsdRedirSwitch(BSC6900,BSC6910) to ON
- The RNC handles the RRC connection setup request of the UE in the current cell if the uplink power load of the cell is lower than the value of UlLdrTrigThd
(BSC6900,BSC6910) multiplied by OffloadRelativeThd(BSC6900,BSC6910) and the downlink power load is lower than the value of DlLdrTrigThd
(BSC6900,BSC6910) multiplied by OffloadRelativeThd(BSC6900,BSC6910).
- The RNC performs the next step if the uplink power load of the cell is not lower than the value of UlLdrTrigThd(BSC6900,BSC6910) multiplied by OffloadRelativeThd
(BSC6900,BSC6910) or the downlink power load is not lower than the value of DlLdrTrigThd(BSC6900,BSC6910) multiplied by OffloadRelativeThd
(BSC6900,BSC6910).

l

If RedirSwitch(BSC6900,BSC6910) is set to ONLY_TO_INTER_FREQUENCY and SCellLoadBsdRedirSwitch(BSC6900,BSC6910) to OFF, the RNC performs the
next step.

l
l

The frequency information carried in the message can be set by running the SET UREDIRECTION command.
SCellLoadBsdRedirSwitch(BSC6900,BSC6910) is effective when RedirSwitch(BSC6900,BSC6910) is set to ONLY_TO_INTER_FREQUENCY.
The calculation method for the uplink/downlink power load of a cell is the same as that for the power load in the load reshuffling algorithm.

l

If RedirSwitch(BSC6900,BSC6910) is set to ONLY_TO_INTER_RAT, the RNC performs the next step.

NOTE:
l

3. Based on the cell load and the redirection factors, the RNC decides whether to perform RRC redirection for service steering.
l

If the cell is in the normal state, the RNC generates a random number between 0 and 1 and compares it with the corresponding unconditional redirection factor
RedirFactorOfNorm(BSC6900,BSC6910). If the random number is smaller than this factor, the RNC performs the next step. Otherwise, the RNC handles the RRC
connection setup request of the UE in the current cell.

l

If the cell is in the basic congestion or overload state, the RNC generates a random number between 0 and 1 and compares it with the value of RedirFactorOfLDR
(BSC6900,BSC6910). If the random number is smaller than this factor, the RNC performs the next step. Otherwise, the RNC handles the RRC connection setup request
of the UE in the current cell.

4. If RedirSwitch(BSC6900,BSC6910) is set to ONLY_TO_INTER_FREQUENCY, RNC selects target cells as following:
If RedirBandInd(BSC6900,BSC6910) is set to a value ranging from Band1 to Band9, the RNC takes the following actions:
l

If the measured CPICH Ec/N0 is contained in the RRC CONNECTION REQUEST message and the value of CPICH Ec/N0 is larger than or equal to the value for
RedirEcN0Thd(BSC6900,BSC6910), the RNC proceeds with the next step. If the value of CPICH Ec/N0 is smaller than the value for RedirEcN0Thd
(BSC6900,BSC6910), the RNC processes the RRC CONNECTION REQUEST message in the current cell.

l

If the measured CPICH Ec/N0 is not contained in the RRC CONNECTION REQUEST message, the RNC proceeds with the next step.

If RedirBandInd(BSC6900,BSC6910) to DependOnNCell, the target cell must meets the following conditions:
l

The target cell must be intra-band inter-frequency cell under the same RNC with the current cell

l

The BlindHoFlag(BSC6900,BSC6910) for the target cell is set to TRUE

l

If RRCRedirConsiderBarSwitch(BSC6900,BSC6910) is set to ON, the IdleCellBarred(BSC6900,BSC6910) of the target cell must no be BARRED.

l

The target cell is not in the OLC state.

If none of the cells in the inter-frequency neighboring cell list meets the preceding requirements, the RNC processes the RRC CONNECTION REQUEST message in the
current cell. Otherwise, the RNC proceeds with the next step.
NOTE:
If parameter settings do not meet the requirements in this step, the RNC skips this step and proceeds with the next step.
5. The RNC performs RRC redirection.
l

If RedirSwitch(BSC6900,BSC6910) is set to ONLY_TO_INTER_FREQUENCY, the RNC sends an RRC CONNECTION REJECT message to the UE, redirecting the
UE to the target frequency carried in the message.

l

If RedirSwitch(BSC6900,BSC6910) is set to ONLY_TO_INTER_RAT, the RNC sends an RRC CONNECTION REJECT message to the UE, redirecting the UE to an
inter-RAT neighboring cell carried in the message.

Service Identification Rule
The RNC identifies requested services according to the relevant information elements (IEs) in the RRC Connection Request message received from the UE. The identification is
successful only when all the conditions described in Table 4-2 are met.
NOTE:
TerminTrfcBsdRedirSwitch(BSC6900,BSC6910) specifies whether the RNC needs to identify UE terminating services.
l
l

If TerminTrfcBsdRedirSwitch(BSC6900,BSC6910) is set to ON, the RNC identifies both UE originating services and UE terminating services.
If TerminTrfcBsdRedirSwitch(BSC6900,BSC6910) is set to OFF, the RNC identifies only UE originating services.

Table 4-2 Service identification rule
Identified Service
Type

Reference IE
Establishment cause

Domain indicator

Call type

UE capability indication

Access stratum release
indicator

AMR

Originating Conversational Call
Terminating Conversational Call

CS domain

Speech

N/A

REL-6
REL-7

AMR/VP

Originating Conversational Call
Terminating Conversational Call

N/A

N/A

N/A

R99
REL-4
REL-5

VP

Originating Conversational Call
Terminating Conversational Call

CS domain

Video

N/A

REL-6
REL-7

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PS R99

Originating Interactive Call
Originating Background Call
Terminating Interactive Call
Terminating Background Call

N/A

N/A

N/A

R99
REL-4

PS R99

Originating Interactive Call
Originating Background Call
Terminating Interactive Call
Terminating Background Call

PS domain

N/A

Not HS-DSCH or HSDSCH
+E-DCH

REL-6
REL-7

PS HSPA

Originating Interactive Call
Originating Background Call
Terminating Interactive Call
Terminating Background Call

PS domain

N/A

HS-DSCH or HS-DSCH
+E-DCH

REL-6
REL-7

NOTE:
PS R99 and PS HSPA services for UEs of the REL-5 version cannot be identified by the RNC because these UEs do not carry the Domain indicator, Call type, or UE capability
indication IEs in the RRC CONNECTION REQUEST message.
UEs of REL-5 and earlier versions do not carry the Domain indicator, Call type, or UE capability indication IEs. Therefore, the RNC cannot differentiate between AMR services and
VP services. The RNC implements VP service redirection the same way it implements AMR service redirection.

4.2.5 RRC DRD
If the UE fails to access the current cell, the RNC performs RRC DRD. The purpose is to instruct the UE to set up an RRC connection in an inter-frequency neighboring cell with
better signal quality.
For details about RRC DRD, see Directed Retry Decision Feature Parameter Description.

4.2.6 RRC Redirection After DRD Failure
This section describes the WRFD-02040003 Inter System Redirect feature.
The purpose of RRC redirection after DRD failure is to instruct the UE to set up RRC connections in an inter-frequency or an inter-RAT cell.
When the RRC DRD fails, the RNC performs RRC redirection as follows:
The RNC selects another frequency for redirection based on the setting of the ReDirBandInd(BSC6900,BSC6910) parameter. If the ReDirBandInd(BSC6900,BSC6910)
parameter is set to a specific band, the RNC selects the configured target frequency number and redirects the UE. The target frequency number is configured by the following
parameters: ReDirUARFCNUplinkInd(BSC6900,BSC6910), ReDirUARFCNUplink(BSC6900,BSC6910), ReDirUARFCNDownlink(BSC6900,BSC6910).
If the ReDirBandInd(BSC6900,BSC6910) parameter is set to DependOnNCell, the RNC selects the target frequency number from the target frequency numbers corresponding to
the intra-band inter-frequency neighboring cells of the current cell. In addition, the RNC excludes the target frequency corresponding to the cells that have carried out interfrequency RRC DRD attempts. And if the RRCRedirConsiderBarSwitch(BSC6900,BSC6910) is set to on, the RNC excludes the target frequency of the cells of which
IdleCellBarred(BSC6900,BSC6910) is set to BARRED.
l

If more than one target frequency number is available, the RNC selects a target frequency number randomly. Then, the RNC sends an RRC CONNECTION REJECT
message to the UE, redirecting the UE to the selected target frequency carried in the message.

l

If no target frequency number is available, the RNC continues to perform RRC redirection according to the setting of the ConnectFailRrcRedirSwitch(BSC6900,BSC6910)
parameter.
n

If ConnectFailRrcRedirSwitch(BSC6900,BSC6910) is set to Only_To_Inter_Frequency, the RRC connection setup fails.

n

If ConnectFailRrcRedirSwitch(BSC6900,BSC6910) is set to Allowed_To_Inter_RAT and there is a neighboring GSM cell, the RNC sends the information about the
neighboring GSM cell to the UE and redirects the UE to GSM system.

n

If ConnectFailRrcRedirSwitch(BSC6900,BSC6910) is set to Allowed_To_Inter_RAT but there is no neighboring GSM cell, the UE automatically searches for available
GSM cells and then selects one of them for RRC connection setup attempts.

4.2.7 FACH Power Control During RRC Phase
During the RRC connection setup procedure, coverage in the live network may be imbalanced and UEs in weak coverage areas cannot correctly parse messages from the
network. This leads to RRC connection setup failures. To address this problem, the FACH power control of RRC phase function is introduced to increase the downlink transmit
power of the FACH so that UEs can correctly parse messages.
When a UE attempts to access a cell, the RNC checks the cause value and the Ec/N0 value contained in the RRC CONNETCTION REQUEST message. The RRC connection
setup cause is specified by the RrcCause(BSC6900,BSC6910) parameter. The RNC then compares the Ec/N0 value with the value for FACHPower4RRCRepEcNoThd
(BSC6900,BSC6910) corresponding to the RrcCause(BSC6900,BSC6910) parameter.
If the value of Ec/N0 is smaller than the value for FACHPower4RRCRepEcNoThd(BSC6900,BSC6910), the FACH power control of RRC phase function is triggered. This function
increases the FACH transmit power as follows:
l

If the T381(BSC6900,BSC6910) timer expires, the RNC increases the downlink transmit power of the FACH when retransmitting the RRC CONNECTION SETUP message to
the UE. The number of times this message is retransmitted is determined by the N381(BSC6900,BSC6910) timer.

l

If the T300(BSC6900,BSC6910) timer expires, after the UE retransmits the RRC CONNETCTION REQUEST message, the RNC increases the downlink transmit power of the
FACH when transmitting the RRC CONNECTION SETUP message. The number of times the RRC CONNETCTION REQUEST message is retransmitted is determined by the
N300(BSC6900,BSC6910) timer.

The FACH downlink transmit power is specified by the MaxFachPower(BSC6900,BSC6910) parameter. When the FACH downlink transmit power exceeds the OLC threshold
DlOlcTrigThd(BSC6900,BSC6910), the RNC does not adjust the FACH downlink transmit power.
The FACH is a common channel. When the FACH power control of RRC phase function is enabled, the FACH downlink transmit power for UEs with no power increase
requirements is the difference between the MaxFachPower(BSC6900,BSC6910) and OffsetFACHPower(BSC6900,BSC6910) parameters.

4.3 Directed Retry Decision
Traffic steering and load sharing during RAB setup are performed based on DRD.
During the RAB connection processing, non-periodic DRD is used to select a suitable cell for a UE to access according to the HSPA+ technological implementation, service
priority, and cell load. Non-periodic DRD is performed during RAB setup, RAB modification, or DCCC channel reconfiguration.
Non-periodic DRD involves inter-frequency DRD and inter-RAT DRD.
Using inter-frequency DRD, the RNC selects the qualified candidate cells based on HSPA+ technological implementation, cell service priority, and cell load. Then, the RNC
sequences the candidate cells by the priority. The UE tries accessing the cells in descending order of priority until it is admitted or it fails to access any cell.
If the UE fails to access any cell in inter-frequency DRD, inter-RAT DRD will be triggered.
For details about non-periodic DRD, see Directed Retry Decision Feature Parameter Description.

4.4 Rate Negotiation at Admission Control
Rate negotiation at admission control (WRFD-010507 Rate Negotiation at Admission Control) includes MBR negotiation, GBR negotiation, initial rate negotiation, and target rate
negotiation.
For a streaming service, the RNC performs resource admission based on the negotiated MBR.
For a new PS BE service, the RNC performs resource admission based on the negotiated initial rate.
For AMR and AMR-WB speech services in the CS domain, see AMR Feature Parameter Description.

4.4.1 PS MBR Negotiation
If the IE "Alternative RAB Parameter Values" is present in the RANAP RAB ASSIGNMENT REQUEST or the RELOCATION REQUEST message when a PS service is set up,

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reconfigured, or handed over, the RNC and the CN will negotiate the rate based on the UE capability to obtain the MBR while ensuring a proper QoS.
l

For the PS streaming service, when the PS_STREAM_IU_QOS_NEG_SWITCH sub-parameter of the PsSwitch(BSC6900,BSC6910) parameter is set to 1, the Iu QoS
negotiation function is enabled for MBR negotiation.

l

For the PS BE service:
n

When the PS_BE_IU_QOS_NEG_SWITCH and PS_BE_STRICT_IU_QOS_NEG_SWITCH sub-parameters of the PsSwitch(BSC6900,BSC6910) parameter are both
set to 1, the Iu QoS negotiation function is enabled, and the RNC determines the MBR of Iu QoS negotiation based on the information about UE capability, cell capability
and rate requested by the CN.

n

When PS_BE_IU_QOS_NEG_SWITCH is set to 1 and PS_BE_STRICT_IU_QOS_NEG_SWITCH is set to 0, the Iu QoS negotiation function is enabled, and the RNC
determines the MBR of Iu QoS negotiation based on the maximum rate supported by the UE rather than the cell capability or other settings.

4.4.2 PS GBR Negotiation
During the setup, reconfiguration, or handover of a PS real-time service, if the PS_STREAM_IU_QOS_NEG_SWITCH sub-parameter of the PsSwitch(BSC6900,BSC6910)
parameter is set to 1, the RNC and the CN negotiate the GBR as follows:
l

If the IE "Type of Alternative Guaranteed Bit Rate Information" in the RAB ASSIGNMENT REQUEST message is set to "unspecified", the GBR negotiation will not be
performed. In such a case, the GBR contained in the IE "RAB Parameters" of the RAB ASSIGNMENT REQUEST message is used. In addition, the subsequent RAB
ASSIGNMENT RESPONSE message does not contain the GBR.

l

If the IE "Type of Alternative Guaranteed Bit Rate Information" in the RAB ASSIGNMENT REQUEST message is set to "value range", the only GBR contained in the IE
"Alternative Guaranteed Bit Rates" is used. In addition, the subsequent RAB ASSIGNMENT RESPONSE message contains this GBR.

l

If the IE "Type of Alternative Guaranteed Bit Rate Information" in the RAB ASSIGNMENT REQUEST message is set to "Discrete values", the largest GBR contained in the IE
"Alternative Guaranteed Bit Rates" is used. In addition, the subsequent RAB ASSIGNMENT RESPONSE message contains this GBR.

If the PS_STREAM_IU_QOS_NEG_SWITCH sub-parameter of the PsSwitch(BSC6900,BSC6910) parameter is set to 0, the GBR negotiation will be not performed. In such a
case, the GBR contained in the IE "RAB Parameters" of the RAB ASSIGNMENT REQUEST message is used.
For details about GBR negotiation, see 3GPP 25.413.

4.4.3 Initial Rate Negotiation
Overview
Initial rate is classified into initial admission rate and initial access rate.
l

Initial admission rate: The RNC allocates bandwidths based on the initial admission rate and then performs admission according to the initial admission rate.

l

Initial access rate: Initial access rate is the initial rate of the UE after service admission is successful. This rate is the maximum rate of the service before the service is
reconfigured.

For PS BE services, the RNC performs initial rate negotiation when a new service is being set up or the UE is changing from the CELL_FACH state to the CELL_DCH state. The
initial rate negotiation policy varies, depending on the services carried on channels.

Initial Rates for DCH Services
For DCH services, the initial admission rate and the initial access rate are the same.
Table 4-3 describes the initial rate negotiation.
Table 4-3 Initial rate negotiation
DCCC Switch
(DCCC_SWITCH)

PS BE Initial Rate Dynamic Configuration
Actual Initial Rate
Switch
(PS_BE_INIT_RATE_DYNAMIC_CFG_SWITCH)

ON

ON

In the uplink, the initial rate is the MBR or 384 kbit/s, whichever is the smaller value.
In the downlink, the initial rate is dynamically set on the basis of Ec/N0. The specific method is as
follows:
When the RNC receives an RRC connection setup request, it starts the timer EcN0EffectTime
(BSC6900,BSC6910).
Before the timer expires, the RNC dynamically sets the initial rate based on the Ec/N0. The value of
Ec/N0 comes from the latest RACH measurement report or latest intra-frequency measurement report.
l If the cell Ec/N0 reported from the UE is above the Ec/N0 threshold EcN0Ths
(BSC6900,BSC6910), the RNC sets the actual initial rate to the smaller one of the MBR and 384
kbit/s.
Note that if the UE is in the soft handover state, the RNC sets the actual initial rate to the smaller
one of the MBR and 384 kbit/s when any of the cells in the active set meets the threshold.
l If the cell Ec/N0 is lower than or equal to the Ec/N0 threshold EcN0Ths(BSC6900,BSC6910) or the
RRC CONNECTION REQUEST message does not carry information about Ec/N0, the RNC sets
the actual initial rate to the smaller one of the MBR and the initial rate of the downlink BE service
DlBeTraffInitBitrate(BSC6900,BSC6910).

ON

OFF

DlBeTraffInitBitrate(BSC6900,BSC6910).
In the uplink, the initial rate is the smaller one of the MBR and the initial rate of the uplink BE service
In the downlink, the initial rate is the smaller one of the MBR and the initial rate of the downlink BE
service DlBeTraffInitBitrate(BSC6900,BSC6910).

OFF

-

MBR

NOTE:
If the DCCC function is enabled and the PS_RAB_Downsizing_Switch sub-parameter of the PsSwitch(BSC6900,BSC6910) parameter is set to 1, the RNC can decrease the
rate through the RAB rate decrease function when the admission based on the initial rate fails.
The PS BE service mentioned in this section can be pure PS BE service or a part of combined services.

Initial Rates for HSPA Services
For the HSUPA service,
l

The initial admission rate is GBR.

l

The initial access rate is defined as follows:
n

If the DRA_HSUPA_DCCC_SWITCH sub-parameter of the DraSwitch(BSC6900,BSC6910) parameter is set to 1, the initial access rate is the initial rate of the HSUPA
BE service HsupaInitialRate(BSC6900,BSC6910).

n

If the DRA_HSUPA_DCCC_SWITCH sub-parameter of the DraSwitch(BSC6900,BSC6910) parameter is set to 0, the initial access rate is the MBR for there is no rate
upsizing reconfiguration when the DRA_HSUPA_DCCC_SWITCH sub-parameter of the DraSwitch(BSC6900,BSC6910) parameter is set to 0.

For the HSDPA service, the initial admission rate and the initial access are both GBR.

Initial Rate Negotiation for the PS BE Service in CS+PS Combined Services
The PS BE service in CS+PS combined services has low data transmission requirements. In most cases, the PS BE service does not need to transmit data when the UE is
performing CS services. If the PS BE service in CS+PS combined services has high data transmission requirements, the transmission rate of the PS BE service increases or the

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PS BE service is switched to an HSDPA channel. As a result, the signaling load increases, and the CS call drop rate may also increase. The initial rate negotiation function is
recommended when most PS BE services in CS+PS combined services have low data transmission requirements.
The BeInitBitrateTypeforCsPs(BSC6900,BSC6910) parameter specifies the bearing policy for the PS BE service and the initial rate for the PS BE service when the UE is in the
CELL_DCH state or transitions to this state. BeInitBitrateTypeforCsPs(BSC6900,BSC6910) applies only to the PS BE service in CS+PS combined services in the following
scenarios:
l

Scenario 1: A UE is in the CELL_DCH state and is processing CS services or CS+PS combined services (any PS service). Then, the UE initiates PS BE services.

l

Scenario 2: A UE is in the CELL_DCH state and is processing PS BE services. Then, the UE initiates CS services.

l

Scenario 3: A UE is in the CELL_FACH state and is processing PS BE services. Then, the UE initiates CS services. (The UE must transition to the CELL_DCH state before
establishing CS services.)

l

Scenario 4: A UE is in the CELL_PCH state and is processing PS BE services. Then, the UE initiates CS services. (The UE must transition to the CELL_FACH or CELL_DCH
state before establishing CS services.)
NOTE:

This section describes the initial rate negotiation function only for the PS BE service in CS+PS combined services in the preceding scenarios. For details about the initial rate
negotiation function for the PS BE service in other scenarios, see Initial Rates for DCH Services and Initial Rates for HSPA Services.
The BeInitBitrateTypeforCsPs(BSC6900,BSC6910) parameter can be set to OFF, DCH 0k, DCH 8k, or DCH 8k/HSDPA.
l

OFF: indicates that the initial rate negotiation function is disabled for the PS BE service in CS+PS combined services in the preceding scenarios.

l

DCH 0k: indicates that the initial uplink and downlink rates for the DCH are both 0 kbit/s.

l

DCH 8k: indicates that the initial uplink and downlink rates for the DCH are both 8 kbit/s.

l

DCH 8k/HSDPA: indicates that the initial uplink rate for the DCH is 8 kbit/s and that downlink services are carried on HSDPA channels.

The implementation of the initial rate negotiation function for the PS BE service in CS+PS combined services varies depending on the protocol version that the UE complies with.
l

For UEs complying with versions later than 3GPP Release 5, the following rules apply:
n

If the BeInitBitrateTypeforCsPs(BSC6900,BSC6910) parameter is not set to OFF and the following switches are turned off:
ReservedSwitch0(BSC6900,BSC6910): RESERVED_SWITCH_0_BIT11 (RAN14.0)
MapSwitch(BSC6900,BSC6910): MAP_CSPS_PS_UL_USE_DCH_SWITCH (RAN15.0)
ReservedSwitch0(BSC6900,BSC6910): RESERVED_SWITCH_0_BIT15 (RAN14.0)
MapSwitch(BSC6900,BSC6910): MAP_CSPS_PS_DL_USE_DCH_SWITCH (RAN15.0)
ReservedSwitch0(BSC6900,BSC6910): RESERVED_SWITCH_0_BIT28(RAN14.0)
OptimizationSwitch(BSC6900,BSC6910): CS_SETUP_P2D_SWITCH (RAN15.0)
Then, the initial uplink and downlink rates for the PS BE service in CS+PS combined services are as listed in Table 4-4.
Table 4-4 Initial uplink and downlink rates for the PS BE service in CS+PS combined services

n

n

Value of BeInitBitrateTypeforCsPs(BSC6900,BSC6910)

Initial Uplink and Downlink Rates for the PS BE Service

DCH 0k

DCH 0 kbit/s

DCH 8k

DCH 8 kbit/s

DCH 8k/HSDPA

DCH 8 kbit/s; HSDPA

If MapSwitch(BSC6900,BSC6910): MAP_CSPS_PS_UL_USE_DCH_SWITCH is turned on and BeInitBitrateTypeforCsPs(BSC6900,BSC6910) is not set to OFF, the
initial uplink rates for the PS BE service in CS+PS combined services are as listed in Table 4-5
Table 4-5 Initial uplink rates for the PS BE service in CS+PS combined services
Setting of MapSwitch(BSC6900,BSC6910):
MAP_CSPS_PS_ULL_USE_DCH_SWITCH

Value of BeInitBitrateTypeforCsPs
(BSC6900,BSC6910)

Initial Uplink Rate for the PS BE Service

Turned on

DCH 0k

DCH 0 kbit/s

Turned on

DCH 8k

DCH 8 kbit/s

Turned on

DCH 8k/HSDPA

DCH 8 kbit/s

If MapSwitch(BSC6900,BSC6910): MAP_CSPS_PS_DL_USE_DCH_SWITCH is turned on and BeInitBitrateTypeforCsPs(BSC6900,BSC6910) is not set to OFF, the
initial downlink rates for the PS BE service in CS+PS combined services are as listed in Table 4-6.

Table 4-6 Initial downlink rates for the PS BE service in CS+PS combined services
Setting of MapSwitch(BSC6900,BSC6910):
MAP_CSPS_PS_DL_USE_DCH_SWITCH

Value of BeInitBitrateTypeforCsPs
(BSC6900,BSC6910)

Initial Downlink Rate for the PS BE Service

Turned on

DCH 0k

DCH 0 kbit/s

Turned on

DCH 8k

DCH 8 kbit/s

Turned on

DCH 8k/HSDPA

DCH 8 kbit/s

In scenario 4, if OptimizationSwitch(BSC6900,BSC6910): CS_SETUP_P2D_SWITCH is turned on, the UE transitions from the CELL_PCH state to the CELL_DCH state before
establishing CS services. In this situation:
l

If PerfEnhanceSwitch1(BSC6900,BSC6910): PERFENH_CS_TRIG_PS_P2D_ZERO_SWITCH is set to 0, the initial uplink and downlink rates for the PS BE service are 8
kbit/s.

l

If PerfEnhanceSwitch1(BSC6900,BSC6910): PERFENH_CS_TRIG_PS_P2D_ZERO_SWITCH is set to 1, the initial uplink and downlink rates for the PS BE service are 0
kbit/s.

Table 4-7 lists the initial uplink and downlink rates for the PS BE service in CS+PS combined services when OptimizationSwitch(BSC6900,BSC6910):
CS_SETUP_P2D_SWITCH is turned on.
Table 4-7 Initial uplink and downlink rates for the PS BE service in CS+PS combined services
Setting of PerfEnhanceSwitch1
(BSC6900,BSC6910):
PERFENH_CS_TRIG_PS_P2D_ZERO_SWITCH

Value of BeInitBitrateTypeforCsPs(BSC6900,BSC6910)

Initial Uplink and Downlink Rates for the PS
BE Service

1

DCH 0k

DCH 0 kbit/s

1

DCH 8k

DCH 0 kbit/s

1

DCH 8k/HSDPA

DCH 0 kbit/s

0

DCH 0k

DCH 0 kbit/s

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0

DCH 8k

DCH 8 kbit/s

0

DCH 8k/HSDPA

DCH 8 kbit/s

l

For UEs complying with versions earlier than 3GPP Release 5, the following rules apply:
n

Versions earlier than 3GPP Release 5 support neither HSDPA nor HSUPA. If OptimizationSwitch(BSC6900,BSC6910): CS_SETUP_P2D_SWITCH is turned on, the
initial uplink and downlink rates for the PS BE service in CS+PS combined services are as listed in Table 4-8.

n

If OptimizationSwitch(BSC6900,BSC6910): CS_SETUP_P2D_SWITCH is turned off, the initial uplink and downlink rates for the PS BE service in CS+PS combined
services are as listed in Table 4-8.

Table 4-8 Initial uplink and downlink rates for the PS BE service in CS+PS combined services
Value of BeInitBitrateTypeforCsPs(BSC6900,BSC6910)

Initial Uplink and Downlink Rates for the PS BE Service

DCH 0k

DCH 0 kbit/s

DCH 8k

DCH 8 kbit/s

DCH 8k/HSDPA

DCH 8 kbit/s

l

For UEs complying with 3GPP Release 5, MapSwitch(BSC6900,BSC6910): MAP_CSPS_PS_DL_USE_DCH_SWITCH does not take effect. This is because 3GPP Release
5 supports HSDPA but does not support HSUPA.

In scenario 2, as long as BeInitBitrateTypeforCsPs(BSC6900,BSC6910) is not set to OFF, the PS BE service is always carried on HSDPA channels in the downlink and the initial
uplink rate for the PS BE service is 8 kbit/s.
In scenario 2, as long as BeInitBitrateTypeforCsPs(BSC6900,BSC6910) is not set to OFF, the initial uplink and downlink rates for PS BE service is always carried on DCH are
listed in Table 4-9.
In scenario 3, when the uplink and downlink services can be carried on the DCH or HS-DSCH, the initial uplink and downlink rates for the PS BE service in CS+PS combined
services are as listed in Table 4-9.
Table 4-9 Initial uplink and downlink rates for the PS BE service in CS+PS combined services
Value of BeInitBitrateTypeforCsPs(BSC6900,BSC6910)

Initial Uplink and Downlink Rates for the PS BE Service

DCH 0k

DCH 0 kbit/s

DCH 8k

DCH 8 kbit/s

DCH 8k/HSDPA

DCH 8 kbit/s

In scenario 1, BeInitBitrateTypeforCsPs(BSC6900,BSC6910) can be set to DCH 0k, DCH 8k, or DCH 8k/HSDPA. The initial uplink rate for the PS BE service is 8 kbit/s, and
downlink services are carried on HSDPA channels.
In scenario 4, when OptimizationSwitch(BSC6900,BSC6910): CS_SETUP_P2D_SWITCH is turned on, the initial uplink and downlink rates for the PS BE service in CS+PS
combined services are as listed in Table 4-10.
Table 4-10 Initial uplink and downlink rates for the PS BE service in CS+PS combined services
Setting of PerfEnhanceSwitch1(BSC6900,BSC6910):
PERFENH_CS_TRIG_PS_P2D_ZERO_SWITCH

Value of BeInitBitrateTypeforCsPs
(BSC6900,BSC6910)

Initial Uplink and Downlink Rates for the PS BE
Service

1

DCH 0k, DCH 8k, DCH 8k/HSDPA

DCH 0 kbit/s

0

DCH 0k

DCH 0 kbit/s

0

DCH 8k, DCH 8k/HSDPA

DCH 8 kbit/s

4.4.4 Target Rate Negotiation
For a BE service in the PS domain, if the cell resource-based admission at the initial rate fails, the RNC selects a target rate to allocate bandwidth for the service based on cell
resources in following situations:
l

Service setup

l

Soft handover

l

DCCC rate upsizing

If the cell has sufficient code and CE resource, the RNC sets the candidate target rate to the one that matches the available cell resources. Then, the RNC sets the target rate to
the greater one of the candidate target rate and the GBR.
In the case of DCCC rate upsizing, if the rate upsizing fails, the target rate is the greater one of the candidate target rate and the pre-upsizing DCCC rate.

4.5 Admission Decision
A radio link sends a resource request to the CAC functional module when additional resources are required. On receipt of the resource request, the CAC functional module
determines whether the request can be accepted by measuring the cell load and the requested resource.
The CAC performs admission decision based on resources such as code resource, power resource, NodeB credit, and Iub resource. In the case of HSPA resource request, the
admission decision is also based on the number of HSPA users. The admission succeeds only when resources are available for CAC.
For details about CAC, see Call Admission Control Feature Parameter Description.

4.6 Preemption
Common Preemption
This section describes the preemption algorithm in the WRFD-010505 Queuing and Pre-Emption feature.
By forcibly releasing the resources of lower-priority users, the preemption function increases the access success rate of higher-priority users.
After cell/cell group resource-based admission fails, the RNC performs preemption if the following conditions are met:
l

The RNC receives an RAB ASSIGNMENT REQUEST message indicating that preemption is supported.
NOTE:

In the RAB ASSIGNMENT REQUEST message sent by the CN, the Pre-emption Capability IE specifies whether a service can trigger preemption and the Pre-emption Vulnerability
IE specifies whether a service can be preempted. That is, Service priorities and the Pre-emption Capability and Pre-emption Vulnerability IEs determine whether to perform
preemption.
l

The preemption algorithm switch PreemptAlgoSwitch(BSC6900,BSC6910) is set to ON.

Preemption applies to the following scenarios:
l

Setup or modification of a service

l

Hard handover or SRNS relocation

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UE state transition from CELL_FACH to CELL_DCH

The preemption procedure is as follows:
1. The RNC selects the target cell for preemption.
l

For multi-carrier services (such as DC-HSDPA, DB-HSDPA, 4C-HSDPA, or DC-HSUPA services), the RNC selects the primary cell in the DC-HSDPA, DB-HSDPA, 4CHSDPA, or DC-HSUPA cell group as the target cell.

l

For non-multi-carrier services, the RNC selects the cell with the highest service priority or lightest load as the target cell.

2. The preemption algorithm determines the radio link sets to be preempted as follows:
a. Selects SRNC UEs first. If no UEs under the SRNC are available, the algorithm selects UEs under the DRNC.
b. Sorts the preemptable UEs by integrated user priority, or sorts the preemptable RABs by integrated RAB priority.
c. Determines candidate UEs or RABs.
For RABs of streaming or BE services, if PriorityReference(BSC6900,BSC6910) is set to Traffic Class and PreemptRefArpSwitch(BSC6900,BSC6910) is set to ON, only
the ones with lower ARP priority than the RAB to be established are selected.
For multi-carrier services, only the resource of UEs that use the target cell as the primary cell is preemptable.
As many users or RABs as necessary are selected in order to match the resources needed by the RAB to be established. When the priorities of two users or RABs are the
same, the algorithm selects the user or RAB that can release the most resources.
Preemptable users or RABs must have lower priorities than the RABs to be established. The type of preemptable user or RAB varies, depending on the type of resources that
triggers the preemption.
NOTE:
l
l
l
l
l

The preemption algorithm checks whether the resources released by preempted UEs or RABs are sufficient for setting up new RABs. It does not consider the remaining
resources in the cell, because the resources may be used by other UEs during the preemption.
For the preemption triggered for power, the preempted objects can be R99 users, R99 + HSPA combined users, or HSPA RABs.
For the preemption triggered for the Iub bandwidth, the preempted objects can only be RABs.
For the preemption triggered for the credit resource, more than one user or RAB can be preempted.
For the preemption triggered for the code, only one user can be preempted.

For CS RABs with the preemption capability, the PsBERrcPreemptVulnerable(BSC6900,BSC6910) parameter specifies whether RRCs can be preempted when there are
no RABs to be preempted.
l

If PsBERrcPreemptVulnerable(BSC6900,BSC6910) is set to ON, the RRCs whose service request type is the PS BE service and RABs have not been set up can be
preempted by CS RABs.

l

If PsBERrcPreemptVulnerable(BSC6900,BSC6910) is set to OFF, RRCs cannot be preempted.
NOTE:

RRCs do not have preemption attributes or priorities. Therefore, preemption attributes and priorities are not considered during the RRC preemption.
3. The RNC releases the resources occupied by the candidate users, RABs, or RRCs.
4. The requested service directly uses the released resources to access the network without an admission decision.
NOTE:
For details about preemption of MBMS services, see MBMS Feature Parameter Description.
Emergency calls are prioritized over common users and therefore can preempt all non-emergency services. The common preemption procedure can be performed regardless of
the setting of PreemptAlgoSwitch(BSC6900,BSC6910).
When NbmWpsAlgorithmSwitch(BSC6900,BSC6910) is set to ON, the wireless priority service (WPS) function is enabled. In such a case, the WPS users can trigger common
preemption regardless of the setting for PreemptAlgoSwitch(BSC6900,BSC6910). WPS users are prioritized over emergency call users.
NOTE:
l
l

WPS is a National Security/Emergency Preparedness (NS/EP) voice service managed by the USA government. The National Communications System (NCS) is authorized to
manage the execution of the WPS project. The NbmWpsAlgorithmPriority(BSC6900,BSC6910) parameter specifies the WPS user priority.
If the common preemption function is enabled, the CE resource preemption enhancement function must also be enabled (controlled by
PREEMPT_ENH_NODEB_PREEMPT_CE_SWITCH under the PreemptEnhSwitch(BSC6900,BSC6910) parameter). When CE resource admission fails due to insufficient
CE resources, the CE resource preemption enhancement function can be triggered on the NodeB side to ensure the CE resource preemption success rate. However, this
function may occupy CE resources reserved for RRC connection setups and handovers, thereby reducing the handover success rate and RRC connection setup success rate.
This function does not affect the handover success rate and access success rate of the preempting UEs, however. The probability of the handover success rate and access
success rate being reduced is low. Therefore, this function does not affect the performance of the live network.

Forced Preemption
Common preemption requires that RABs have been set up or are being set up for preempting users and that preempting users have higher priorities than preemptable users.
Therefore, CS services cannot trigger preemption in the RRC connection setup phase. Even in the RAB-related phases, CS services may fail to preempt PS services because of
insufficient priorities. When PS traffic volume is high and radio resources are insufficient, the success rate for CS service setup may decrease. To solve this problem, forced
preemption is introduced. This function ensures preferred access of AMR services and a high success rate for AMR service setup.
The forced preemption function is controlled by PreemptAlgoSwitch(BSC6900,BSC6910) and PreemptEnhSwitch(BSC6900,BSC6910) together. The following lists the subfunction switches under the PreemptEnhSwitch(BSC6900,BSC6910) parameter:
l

PREEMPT_ENH_CSRRC_PREEMPT_PS_SWITCH: indicates whether CS services can preempt PS service resources during the CS RRC connection setup procedure.

l

PREEMPT_ENH_CSRAB_PREEMPT_PS_SWITCH: indicates whether CS services can preempt PS BE service resources during the CS RAB-related procedures.

The following table describes how these two sub-function switches determine preemption.
Table 4-11 Preemption as determined by two sub-function switches
PREEMPT_ENH_CSRAB_PREEMPT_PS_SWITCH PREEMPT_ENH_CSRRC_PREEMPT_PS_SWITCH RRC Connection Setup
Phase

RAB-Related Phases

On

Off

CS conversational
If RAB admission for CS conversational
services cannot preempt services fails, PS BE service resources
PS BE service resources. can be preempted unconditionally.

On

On

If RRC admission for CS
conversational services
fails, PS BE service
resources can be
preempted
unconditionally.

If RAB admission for CS conversational
services fails, PS BE service resources
can be preempted unconditionally.

Off

On

If RRC admission for CS
conversational services
fails, resources of PS BE
services whose Pre-

Common preemption is performed. That
is, Service Priorities and the Preemption Capability and Pre-emption
Vulnerability IEs determine whether to

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emption Vulnerability IE
is set to "pre-emptable"
can be preempted.
Off

Off

perform preemption.

CS conversational
Common preemption is performed. That
services cannot preempt is, Service Priorities and the PrePS BE service resources. Emption Capability and Pre-emption
Vulnerability IEs determine whether to
perform preemption.

NOTE:
In the RRC connection setup phase, if an RRC setup request is from the CS domain and the cause of RRC setup is Originating Conversational Call or Terminating Conversational
Call, the RNC considers the corresponding service to be a CS conversational service.
After forced preemption is enabled, only CS conversational services can trigger preemption and only PS BE service resources can be preempted.
If forced preemption for CS RAB is enabled,
l
l

Only CS Conversational service can trigger preemption and only PS BE service can be preempted.
PS BE service can not preempt PSBE service.

If forced preemption for CS RAB is disabled and that for CS RRC is enabled, PS BE service can prempt PS BE serice. For PS BE prempts PS BE, see Common Preemption.
In the case of unconditional preemption, the RNC does not compare the priority of CS conversational services with that of PS BE services. In addition, the RNC does not consider
the Pre-emption Capability or Pre-emption Vulnerability IE delivered by the CN. In this case, PS BE services can be preempted by any CS conversational services and only PS BE
services can be preempted. Preempted PS BE services are ranked by priority and PS BE services with the lowest priority are preempted.
When a UE transits to the CELL_DCH state from the URA_PCH or CELL_PCH state due to a CS service request, the RNC implements the policy of forced preemption based on
the setting of CsP2DPreemptSwitch(BSC6900,BSC6910).
l

If CsP2DPreemptSwitch(BSC6900,BSC6910) is set to OFF, the CS service request does not support preemption during a transition from the URA_PCH or CELL_PCH state
to the CELL_DCH state.

l

If CsP2DPreemptSwitch(BSC6900,BSC6910) is set to ON, the CS service can preempt only PS BE services during a transition from the URA_PCH or CELL_PCH state to
the CELL_DCH state, regardless of the preemption attributes and priorities of the CS and PS BE services.

If there are no PS BE services to preempt, forced preemption is implemented and the RRCs for PS BE services are preempted when PsBERrcPreemptVulnerable
(BSC6900,BSC6910) is set to ON. Otherwise, preemption fails. For details about preemption of RRCs for PS BE services, see Common Preemption.
NOTE:
If the forced preemption function is enabled, the CE resource preemption enhancement function must also be enabled (controlled by
PREEMPT_ENH_NODEB_PREEMPT_CE_SWITCH under the PreemptEnhSwitch(BSC6900,BSC6910) parameter). When CE resource admission fails due to insufficient CE
resources, the CE resource preemption enhancement function can be triggered on the NodeB side to ensure the CE resource preemption success rate. However, this function may
occupy CE resources reserved for RRC connection setups and handovers, thereby reducing the handover success rate and RRC connection setup success rate. This function
does not affect the handover success rate and access success rate of the preempting UEs, however. The probability of the handover success rate and access success rate being
reduced is low. Therefore, this function does not affect the performance of the live network.

4.7 Queuing
This section describes the queuing algorithm in the WRFD-010505 Queuing and Pre-Emption feature.
For PS services, after preemption fails, the RNC performs queuing if the following conditions are met:
l

The RNC receives an RAB ASSIGNMENT REQUEST message indicating that queuing is supported.

l

The queuing algorithm switch QueueAlgoSwitch(BSC6900,BSC6910) is set to ON.

The queuing function is triggered by the heartbeat timer that is set by the PollTimerLen(BSC6900,BSC6910) parameter. Each time the timer expires, the RNC selects the service
that meets the requirement to make an admission attempt.
NOTE:
Multi-carrier services (such as DC-HSDPA, DB-HSDPA, 4C-HSDPA, or DC-HSUPA services) requested by the UE wait to be processed in the primary cell.
The queuing function is implemented as follows:
l

The queuing algorithm checks whether the queue is full, that is, whether the number of service requests in the queue exceeds QueueLen(BSC6900,BSC6910).

l

The queuing algorithm decides whether to put the request into the queue, as described in the following table.
Table 4-12 Putting a new request into the queue
If the queue is...
Not full

Then the queuing algorithm...
n
n
n

Full

Stamps this request with the request time (T_request)
Puts this request into the queue
Starts the heartbeat timer if it is not started

Checks whether the integrated priority of any existing request is lower than that of the new request.
n

n

If yes, the queuing algorithm
- Checks the queuing time of each request. The algorithm removes the request with the longest queuing time from the queue.
- Stamps the new request with the request time (T_request) and then puts it into the queue.
- Starts the heartbeat timer if it is not started
If no, the queuing algorithm rejects the new request directly.

After the heartbeat timer expires, the queuing algorithm performs resource-based admission attempts as follows:
l

Rejects the request if the queuing time of the request (Telapsed) is longer than the maximum queuing time MaxQueueTimeLen(BSC6900,BSC6910). Here, Telapsed is equal to
the current time minus the request time (T_request).

l

Selects the request with the highest integrated priority for a resource-based admission attempt.

l

If more than one service has the highest integrated priority, the RNC selects the request with the longest queuing time.

l

If the attempt is successful, the heartbeat timer is restarted for the next processing.

l

If the attempt fails, the queuing algorithm proceeds as follows:
n

Puts the service request back into the queue with the request time (T_request) unchanged for the next attempt.

n

Selects the request with the longest queuing time from the rest and makes another attempt until a request is accepted or all requests are rejected.

4.8 Low-Rate Access of the PS BE Service
If the low-rate access of the PS BE service function is enabled, the PS BE service can access the target cell at a low rate in the case of a preemption or queuing failure, thereby
increasing the access success rate. Low-rate access means access from the DCH at 0 kbit/s, FACH, or enhanced FACH (E-FACH).
The low-rate access of the PS BE service function is enabled when the following settings are available:

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l

The PS_BE_EXTRA_LOW_RATE_ACCESS_SWITCH under the PsSwitch(BSC6900,BSC6910) parameter is set to 1.

l

The PERFENH_SMALL_RATE_PS_FORCE_ADM_SWITCH under the PerfEnhanceSwitch(BSC6900,BSC6910) parameter is set to 0.

l

The DRA_DCCC_SWITCH under the DraSwitch(BSC6900,BSC6910) parameter is set to 1.

l

The PS_RAB_DOWNSIZING_SWITCH under the PsSwitch(BSC6900,BSC6910) parameter is set to 1.

Low-rate access applies to the following scenarios:
l

RAB setup

l

Hard handover or SRNS relocation

When a service request is rejected, low-rate access actions are implemented in different scenarios as follows:
Scenario

Scenario Description

FACH/E_FACH DCH at 0 kbit/s

RAB setup

The RRC connection has been set up on the FACH or E-FACH.



x

The RRC connection has been set up on the DCH.

x



The RRC connection has been set up on the HSPA channel.

x



The CS service has been set up, and a new PS service is to be set up.

x



The existing PS service has been set up on the FACH/E-FACH, and a new PS service is to be set √
up.

x

The existing PS service has been set up on the DCH, and a new PS service is to be set up.

x



The existing PS service has been set up on the HSPA channel, and a new PS service is to be set
up.

x

√ (the new PS service can be admitted
at 0 kbit/s)

The PS service has been set up, and a new CS service is to be set up.

x

x

Hard handover or relocation is performed for the CS+PS combined services.

x

√ (Only the PS service can be
admitted at 0 kbit/s.)

Hard handover or relocation is performed for the PS+PS combined services.

x



Hard handover or
relocation

After an appropriate access action is determined, the service attempts to access the network.
l

If DCH 0 kbit/s is used, the service attempts to access the network at 0 kbit/s for traffic and at the normal rate for signaling. For details about the methods of resource-based
admission decision, see Call Admission Control Feature Parameter Description.

l

If FACH/E-FACH is used, the service attempts to access the network from the FACH/E-FACH.

If the attempt fails, this service is rejected.
For the service that accesses the network at 0 kbit/s, the ZeroRateUpFailToRelTimerLen(BSC6900,BSC6910) timer is started after the service rate fails to increase for the first
time. If the rate still fails to increase after the timer expires, the service is released, and the connection is also released for a single service.
If no data is transmitted for some time after the access, the UE changes to another state. For details about state transition, see State Transition Feature Parameter Description.

4.9 IAC for Emergency Calls
This section describes the WRFD-021104 Emergency Call feature, which allows the RNC to take special measures to ensure access for emergency calls.

4.9.1 RRC Connection Setup Procedure of Emergency Calls
Compared with the RRC connection setup procedure of common services, the RRC connection setup procedure of emergency calls involves the preemption due to hard resourcebased admission failure. Hard resources include code, Iub, and CE resource. The following figure shows the RRC connection setup procedure of an emergency call.
Figure 4-3 RRC connection setup procedure of an emergency call

NOTE:
The RNC does not perform RRC redirection for service steering.
In the case of power-based admission, emergency calls are admitted regardless of whether the CAC function is enabled or not.
In the case of hard resource-based admission, emergency calls are admitted if the current remaining resources are sufficient for RRC connection setup. If the admission fails,
preemption is performed regardless of whether the preemption is enabled or not. The emergency call that triggers preemption has the highest priority. The range of users who can
be preempted is specified by the EmcPreeRefVulnSwitch(BSC6900,BSC6910) parameter.
l

If EmcPreeRefVulnSwitch(BSC6900,BSC6910) is set to ON, all non-emergency users who have accessed the network can be preempted, regardless of the preemptionprohibited attribute of the users.

l

If EmcPreeRefVulnSwitch(BSC6900,BSC6910) is set to OFF, only non-emergency users with the preemption-allowed attribute can be preempted.

The principles for selection of specific users to be preempted are the same as those for common services. For details, see the section 4.6 Preemption.

4.9.2 RAB Process of Emergency Calls
Compared with the RAB process of common services, the RAB process of emergency calls involves special processing of resource-based admission and preemption.

RAB Admission of Emergency Calls
In the case of power resource:
l

l

If the CAC function is enabled, regardless of which algorithm is selected, the admission decision is made as follows:
n

When the EMC_UU_ADCTRL sub-parameter of the NBMCacAlgoSwitch(BSC6900,BSC6910) parameter is set to 1, power-based admission fails if the system is in the
overload congestion state. Otherwise, the admission succeeds.

n

When this sub-parameter is set to 0, emergency calls are directly admitted.

If the CAC function switch is off, emergency calls are directly admitted.
For hard resources (code, Iub, and CE), the resource-based admission is successful if the available resources are sufficient for the request.

Preemption of Emergency Calls

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If cell resource-based admission fails, preemption is performed regardless of whether the preempt function is enabled or not. The emergency call that triggers preemption has the
highest priority. The range of users who can be preempted is specified by the EmcPreeRefVulnSwitch(BSC6900,BSC6910) parameter.
l

If EmcPreeRefVulnSwitch(BSC6900,BSC6910) is set to ON, all non-emergency users who have accessed the network can be preempted, regardless of the preemptionprohibited attribute of the users.

l

If EmcPreeRefVulnSwitch(BSC6900,BSC6910) is set to OFF, only non-emergency users with the preemption-allowed attribute can be preempted.

The principles for selection of specific users to be preempted are the same as those for common services. For details, see the section 4.6 Preemption.

5 Intra-Frequency Load Balancing
5.1 Overview
The intra-frequency load balancing function automatically adjusts the P-CPICH transmit power based on cell load, thereby balancing load across intra-frequency neighboring cells.
l

When the cell load increases, this function reduces the P-CPICH transmit power. As a result, the cell coverage is reduced, which enables UEs at the cell edge to be handed
over to intra-frequency neighboring cells. This reduces the load in the current cell.

l

When cell load decreases, this function increases the P-CPICH transmit power. As a result, the cell coverage is increased and UEs from other heavily loaded neighboring cells
can be handed over to the current cell.

The intra-frequency load balancing function improves resource utilization and increases system capacity by utilizing idle resources in neighboring cells.
Intra-frequency load balancing incorporates the downlink TCP-based intra-frequency load balancing and uplink RTWP-based intra-frequency load balancing functions. The
downlink intra-frequency load balancing and uplink intra-frequency load balancing functions cannot take effect simultaneously. If they are enabled at the same time, the downlink
intra-frequency load balancing function takes precedence.

5.2 TCP-based Intra-Frequency Load Balancing
This section describes the WRFD-020104 Intra-Frequency Load Balance feature.
The downlink intra-frequency load balancing function adjusts the P-CPICH transmit power based on the measured downlink cell load. The downlink intra-frequency load balancing
function is also called the TCP-based intra-frequency load balancing function.
NOTE:
If TCP-based intra-frequency load balancing function and the Load Based Dynamic Adjustment of PCPICH feature are enabled at the same time, the Load Based Dynamic
Adjustment of PCPICH feature takes precedence.
Downlink intra-frequency load balancing is performed to adjust the coverage areas of cells according to the measured values of cell load. It is applicable only to the downlink.
Downlink intra-frequency load balancing between intra-frequency cells is performed by adjusting the transmit power of the Primary Common Pilot Channel (P-CPICH) based on the
downlink load of the associated cells.
When this function is enabled (INTRA_FREQUENCY_LDB under the NBMLdcAlgoSwitch(BSC6900,BSC6910) parameter is enabled), the RNC checks the load of cells
periodically and adjusts the transmit power of the P-CPICH in the associated cells based on the cell load.
The following figure shows the procedure for downlink intra-frequency load balancing.
Figure 5-1 Procedure of downlink intra-frequency load balancing

The downlink intra-frequency load balancing is implemented as follows:
l

If the downlink load of a cell is higher than the cell overload threshold CellOverrunThd(BSC6900,BSC6910), the cell is heavily overloaded. In this case, the transmit power of
the P-CPICH needs to be reduced step by step. The step is specified by the PCPICHPowerPace(BSC6900,BSC6910) parameter.
If the current transmit power is equal to the minimum transmit power of P-CPICH MinPCPICHPower(BSC6900,BSC6910), the current transmit power is not adjusted.
As a result of decrease in the pilot power, UEs at the edge of the cell can be handed over to neighboring cells, especially to those with a relatively light load and with relatively
high pilot power. After that, the downlink load of the cell is reduced accordingly.

l

If the downlink load of a cell is lower than the cell underload threshold CellUnderrunThd(BSC6900,BSC6910), the cell has sufficient capacity to take more load. In this case,
the transmit power of the P-CPICH can be increased step by step to help reduce the load of neighboring cells. The step is specified by the PCPICHPowerPace
(BSC6900,BSC6910) parameter.
If the current transmit power is equal to the maximum transmit power of P-CPICH MaxPCPICHPower(BSC6900,BSC6910), the current transmit power is not adjusted.

5.3 RTWP-based Intra-Frequency Load Balancing

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In scenarios where uplink interference is always strong, increased RTWP leads to limited uplink coverage, causing uplink and downlink coverage imbalance. The RTWP-based
uplink intra-frequency load balancing algorithm is introduced to solve this problem.
If this algorithm finds that uplink coverage limitation is caused by RTWP, it automatically adjusts pilot power and decreases the downlink coverage, thereby balancing uplink and
downlink coverage. This algorithm reduces the call drop ratio of cell edge users caused by strong external interference. After the uplink RTWP becomes normal, this algorithm
automatically adjusts the pilot power to the normal condition.
The uplink intra-frequency load balancing algorithm is specified by the NBMLdcAlgoSwitch(BSC6900,BSC6910): UL_INTRA_FREQUENCY_ULB parameter. Figure 5-2 shows
the process of the uplink intra-frequency load balancing algorithm.
Figure 5-2 Process of the uplink intra-frequency load balancing algorithm

As shown in Figure 5-2, the RNC performs the following actions in each ULB period (specified by the IntraFreqULBPeriodTimerLen(BSC6900,BSC6910) parameter) as follows:
1. The RNC obtains RTWP from the NodeB and then performs smooth filtering on the RTWP value. The smooth filtering window is specified by the ULBAvgFilterLen
(BSC6900,BSC6910) parameter.
2. The RNC evaluates the uplink load of the current cell based on the filtered RTWP value.
l

If the filtered RTWP value is between RTWPHeavyThd(BSC6900,BSC6910) and RTWPLightThd(BSC6900,BSC6910), the RNC considers the load of the current cell
to be normal. In this case, the RNC does not adjust the pilot power during this period.

l

If the filtered RTWP value is larger than or equal to RTWPHeavyThd(BSC6900,BSC6910), the RNC considers the load of the current cell to be heavy. In this case, the
RNC performs step 3.

l

If the filtered RTWP value is less than or equal to RTWPLightThd(BSC6900,BSC6910), the RNC considers the load of the current cell to be light. In this case, the RNC
performs step 4.

3. The RNC compares the current pilot power and MinPCPICHPower(BSC6900,BSC6910). If the current pilot power is larger than MinPCPICHPower(BSC6900,BSC6910),
the RNC decreases the current pilot power by one step (specified by the PCPICHPowerPace(BSC6900,BSC6910) parameter). Otherwise, the RNC does not adjust the pilot
power during this period.
4. The RNC compares the current pilot power and MaxPCPICHPower(BSC6900,BSC6910). If the current pilot power is less than MaxPCPICHPower(BSC6900,BSC6910), the
RNC increases the current pilot power by one step (specified by the PCPICHPowerPace(BSC6900,BSC6910) parameter). Otherwise, the RNC does not adjust the pilot
power during this period.

6 Load Reshuffling
This chapter describes the WRFD-020106 Load Reshuffling feature.
When the cell resource usage exceeds the basic congestion trigger threshold, the cell enters the basic congestion state. In this case, LDR is used to reduce the cell load and
increase the access success rate.

6.1 Basic Congestion Triggering
The basic congestion state of a cell can be caused by insufficiency in a variety of resources, including power resource, code resource, Iub resource, and NodeB credit resource. A
cell that experiences basic congestion occurs is referred to as a cell in the LDR state.
In the case of power resource, the RNC performs periodic measurement and checks whether the cells are congested. In the case of code, Iub, and NodeB credit resources, the
RNC checks whether the cells are congested when resource usage changes.
If all resources in a cell are in the basic congestion state, they will be relieved from the congestion state in order of resource priority for load reshuffling as configured by the SET
ULDCALGOPARA command.

6.1.1 Power Resource
The uplink load reshuffling algorithm is implemented as follows:
l

If the parameter NBMUlCacAlgoSelSwitch(BSC6900,BSC6910) is set to ALGORITHM_First, ALGORITHM_THIRD, or ALGORITHM_OFF, the uplink load reshuffling
algorithm will trigger basic congestion based on power resource.

l

If the parameter NBMUlCacAlgoSelSwitch(BSC6900,BSC6910) is set to ALGORITHM_FORTH, the uplink load reshuffling algorithm will trigger basic congestion based on
the total uplink load corresponding to the actual uplink service load.

l

If the parameter NBMUlCacAlgoSelSwitch(BSC6900,BSC6910) is set to ALGORITHM_SECOND, the uplink load reshuffling algorithm will trigger basic congestion based on

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ENU.
NOTE:
l
l

For an HSUPA cell, if HSUPA_EDCH_RSEPS_MEAS under the NBMCacAlgoSwitch(BSC6900,BSC6910) parameter is not selected, the uplink load reshuffling algorithm
will trigger basic congestion based on ENU, regardless of the value of the parameter NBMUlCacAlgoSelSwitch(BSC6900,BSC6910).
If the measurement on the total uplink load corresponding to the actual uplink service load is unavailable, for example, when the relevant NodeB boards cannot report the
measurement results, the uplink load reshuffling algorithm will trigger basic congestion based on ENU.

The downlink load reshuffling algorithm is implemented as follows:
l

If the parameter NBMDlCacAlgoSelSwitch(BSC6900,BSC6910) is set to ALGORITHM_OFF, ALGORITHM_First, or ALGORITHM_THIRD, the downlink load reshuffling
algorithm will trigger basic congestion based on power resource.

l

If the parameter NBMDlCacAlgoSelSwitch(BSC6900,BSC6910) is set to ALGORITHM_SECOND, the downlink load reshuffling algorithm will trigger basic congestion based
on ENU.

If the load of a cell is calculated based on power resource, the uplink load of the cell is calculated based on the uncontrollable load in the HSUPA cell or total RTWP load in the
R99 cell. The downlink load of the cell is calculated based on the load of non-HSPA power and GBP in the HSDPA cell or total TCP load in the R99 cell.
If the load of a cell is calculated based on ENU, the uplink load and the downlink load of the cell are calculated based on the total ENU load in the cell in the uplink and downlink,
respectively. For details about the load of a cell calculated based on power resource and based on ENU, see Call Admission Control Feature Parameter Description.
NOTE:
In a DC-HSDPA or DC-HSUPA cell, if the cell load is calculated based on the number of equivalent users, only the equivalent users on the primary carrier are counted in the DCHSDPA or DC-HSUPA cell.
Congestion control based on power resource is enabled using the DL_UU_LDR and UL_UU_LDR sub-parameters of the NBMLdcAlgoSwitch(BSC6900,BSC6910) parameter.
The following figure shows the triggering and relieving of basic congestion.
Figure 6-1 Triggering and relieving of basic congestion

As shown in Figure 6-1, if the UL/DL load of the cell is higher than or equal to the UL/DL LDR trigger threshold UlLdrTrigThd(BSC6900,BSC6910) or DlLdrTrigThd
(BSC6900,BSC6910) for a hysteresis time, the cell is in the basic congestion state, and the related load reshuffling actions, as listed in Table 6-2, are taken. If the current UL/DL
load of the cell is lower than the UL/DL LDR relief threshold UlLdrTrigThd(BSC6900,BSC6910) or DlLdrTrigThd(BSC6900,BSC6910) for a hysteresis time, the cell changes to
the normal state and the related load reshuffling actions are stopped.
NOTE:
For the downlink, the hysteresis time is specified by the DlLdTrnsHysTime(BSC6900,BSC6910) parameter; for the uplink, the hysteresis time is 600 ms.
The DL LDR trigger threshold of a DC-HSDPA cell group equals the sum of the DL LDR trigger thresholds of the two cells in this group. The DL LDR relief threshold of a DCHSDPA cell group equals the sum of the DL LDR relief thresholds of the two cells in this group. If a DC-HSDPA cell group is in the basic congestion state, the related LDR actions
are separately performed in each cell.
In a DC-HSUPA cell, LDR triggering and execution occur in the two cells respectively.

6.1.2 Code Resource
Congestion control based on code resource is enabled using the CELL_CODE_LDR sub-parameter of the NBMLdcAlgoSwitch(BSC6900,BSC6910) parameter.
If the SF corresponding to the current remaining code of the cell is larger than the value of CellLdrSfResThd(BSC6900,BSC6910), code congestion is triggered and the related
load reshuffling actions, as listed in Table 6-2, are taken.

6.1.3 Iub Resource
Congestion control based on Iub resource is enabled through the IUB_LDR sub-parameter of the NodeBLdcAlgoSwitch(BSC6900,BSC6910) parameter.
Iub congestion control in both the uplink and downlink is NodeB-oriented. In the case of Iub congestion, LDR actions are implemented to relieve congestion. Iub congestion is
detected in a separate processing module. For details about the decision on Iub congestion detection, see Transmission Resource Management Feature Parameter Description.
For the basic congestion caused by Iub resource, all UEs under the NodeB are the objects of related LDR actions.

6.1.4 NodeB Credit Resource
The following types of basic congestion can be caused by NodeB credit resource:
l

Type A: Basic congestion at the local cell level
If the cell UL/DL current remaining credit resource is lower than the credit resource corresponding to the SF specified by UlLdrCreditSfResThd(BSC6900,BSC6910) or
DlLdrCreditSfResThd(BSC6900,BSC6910) (set by running the ADD UCELLLDR command), credit congestion at the cell level is triggered and related load reshuffling
actions will be taken in the current cell.

l

Type B: Basic congestion at the local cell group level (if any)

l

Type C: Basic congestion at the NodeB level
If the cell group or NodeB UL/DL current remaining credit resource is lower than the credit resource corresponding to the SF specified by UlLdrCreditSfResThd
(BSC6900,BSC6910) or DlLdrCreditSfResThd(BSC6900,BSC6910) (set by running the ADD UNODEBLDR command), credit congestion at the cell group or NodeB level is
triggered and related load reshuffling actions will be taken.
The basic congestion of type A will not trigger load-based inter-frequency handovers while the basic congestion of type B or C will.

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The following table lists the LDR switches that need to be set to 1 for different algorithm types.
Table 6-1 LDR switches that need to be set to 1
Algorithm

Load Control Algorithm Switch LDC Algorithm Switch

Type A

LC_CREDIT_LDR_SWITCH

CELL_CREDIT_LDR

Type B

LCG_CREDIT_LDR_SWITCH

LCG_CREDIT_LDR

Type C

NODEB_CREDIT_LDR_SWITCH NODEB_CREDIT_LDR

6.2 LDR Procedure
When a cell is in the basic congestion state, the RNC takes actions in each period as specified by the LdrPeriodTimerLen(BSC6900,BSC6910) parameter in the SET
ULDCPERIOD command, until the congestion state is relieved. The actions apply to HSPA cells and R99 cells and include the following:
NOTE:
For R99 cells, LDR actions apply only to DCH UEs. The GoldUserLoadControlSwitch(BSC6900,BSC6910) parameter specifies whether LDR actions apply to gold users. The
RNC applies LDR actions to gold users only when the GoldUserLoadControlSwitch(BSC6900,BSC6910) parameter is set to ON.
l

Load-based inter-frequency handover

l

Code reshuffling

l

BE service rate reduction

l

AMR rate reduction

l

Inter-RAT load-based handover in the CS domain, which involves the following actions:
n

Inter-RAT Should Be Load-based Handover in the CS Domain

n

Inter-RAT Should Not Be Load-based Handover in the CS Domain

NOTE:
The difference between the "Inter-RAT Should Be Load-based Handover In the CS/PS Domain" and "Inter-RAT Should Not Be Load-based Handover In the CS/PS Domain"
actions is the selection of users. The former only involves CS/PS users with the "service handover" IE in RAB ASSIGNMENT REQUEST set to "handover to GSM should be
performed", while the latter only involves CS/PS users with the "service handover" IE set to "handover to GSM should not be performed." For details about the "service handover"
IE, see Handover Feature Parameter Description.
l

Inter-RAT load-based handover in the PS domain, which involves the following actions:
n

Inter-RAT Should Be Load-based Handover in the PS Domain

n

Inter-RAT Should Not Be Load-based Handover in the PS Domain

l

QoS Renegotiation for Uncontrollable Real-Time Services

l

MBMS power reduction

l

PS inter-RAT handover from UMTS to LTE

The sequence of LDR actions can be changed using the MOD UCELLLDR/MOD UNODEBLDR command.
The following figure illustrates the detailed LDR procedure. In this example, the sequence of LDR actions is: load-based inter-frequency handover, code reshuffling, BE rate
reduction, inter-RAT handover in CS domain, inter-RAT handover in PS domain, AMR rate reduction, QoS Renegotiation for Uncontrollable Real-Time Services, and MBMS power
reduction.
Figure 6-2 LDR procedure

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As shown in the preceding figure, when the system is congested, the load-based inter-frequency handover is initiated first.
l

If the handover succeeds, the algorithm continues to check whether the system is congested. If the system is still congested, the load-based inter-frequency handover is
initiated again.

l

If the handover fails, code reshuffling is performed:
n

If the code reshuffling succeeds, the algorithm continues to check whether the system is congested. If the system is still congested, the code reshuffling is initiated again.

n

If the code reshuffling fails, the next action, BE rate reduction, is taken.

The remaining actions are performed similarly. For details about LDR actions, see the section 6.3 LDR Actions.
The LDR actions that are triggered by basic congestion caused by different resources are different. Table 6-2 describes the LDR actions for different resources.
When the basic congestion is triggered by different resources, the congestion can be relieved in an order set by running the SET ULDCALGOPARA command.
Table 6-2 LDR actions for different resources
Resources

Power

UL/DL

UL

DL

Service

LDR Actions
Load-based
InterFrequency
Handover

BE Rate
Reduction

Inter-RAT
Handover in
CS Domain

Inter-RAT
Handover in
PS Domain

AMR Rate
Reduction

QoS
Code
Renegotiation Reshuffling
for
Uncontrollable
Real-Time
Services

DCH









√*



HSUPA

√*





DC-HSUPA



DCH



HSDPA



DC-HSDPA













UL

PS InterRAT
Handover
from UMTS
to LTE






√*









√*

FACH
(MBMS)
Iub

MBMS
Power
Reduction

DCH





HSUPA









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DC-HSUPA
DL

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DCH





HSDPA











DC-HSDPA
FACH
(MBMS)
Code

-

-

DL

DCH

√*





DCH









HSUPA









DC-HSUPA







HSDPA
FACH
(MBMS)
Credit

UL

DL

DCH





√**






√**

√**


√**

HSDPA
FACH
(MBMS)
For some actions in Table 6-2, the following rules apply:
l

The Inter-RAT Handover in CS Domain action can be performed for the HSDPA services only when the HsdpaCMPermissionInd(BSC6900,BSC6910) parameter is set to
TRUE.

l

If the uplink power-based admission uses the ENU algorithm, the load-based inter-frequency handover for HSUPA user can be performed.

l

If the uplink power-based admission uses the power resource algorithm, the load-based inter-frequency handover for HSUPA user cannot be performed, as indicated by the
symbol "*" in the preceding table.

l

If the downlink power-based admission uses the ENU algorithm, the basic congestion can also be caused by the ENU. In this situation, LDR actions do not involve AMR rate
reduction or MBMS power reduction, as indicated by the symbol "*" in the preceding table.

l

In the same environment, different rates have different downlink transmit powers. The higher the rate, the greater the downlink transmit power. Therefore, the load can be
reduced by bandwidth reconfiguration.

l

If dynamic CE resource management is enabled, BE service rate downsizing of LDR actions that is triggered by insufficient NodeB credit resource does not take effect with
HSUPA users.

l

For LDR triggered by Iub congestion, RNC selects UEs in the congested path or port.

l

Load-based inter-frequency handovers triggered by code resource congestion support blind handovers but not measurement-based handovers.

l

In an LDR-triggered DC-HSUPA cell, the RNC only selects the DC-HSUPA UEs whose current cell is the primary cell. If LDR is triggered because of insufficient uplink power
or number of equivalent users, the RNC does not select the DC-HSUPA UEs whose secondary carrier cell is the target cell.

l

In the PS inter-RAT handover from UMTS to LTE, the credit resource is for cell-level only, which is indicated by the symbol "**" in the preceding table.

l

Parameters related to some LDR actions are classified into cell-level and NodeB-level parameters. These parameters apply to different resources.
n

NodeB-level parameters take effect when Iub resources, cell group credit resources, or NodeB credit resources are in the basic congestion state.

n

Cell-level parameters take effect when power resources, code resources, or cell credit resources are in the basic congestion state.

6.3 LDR Actions
6.3.1 Load-based Inter-Frequency Handover
Load-based inter-frequency handover is also called inter-frequency load balance (WRFD-020103 Inter-Frequency Load Balance). For details, see Inter-Frequency Load Balancing
Feature Parameter Description.

6.3.2 BE Rate Reduction
NOTE:
When admission control of Power/NodeB Credit is disabled, do not configure the BE Rate Reduction as an LDR action. Otherwise, ping-pong effect may occur.
BE rate reduction is performed only when the DRA_DCCC_SWITCH sub-parameter of the DraSwitch(BSC6900,BSC6910) parameter is set to 1.
BE rate reduction is implemented as follows:
1. The LDR algorithm sorts BE RABs in ascending order of integrated priority.
2. The LDR algorithm selects BE RABs that meet the following condition:
l

The current rate of the BE RAB is higher than the GBR specified by running the SET UUSERGBR command.

l

The BE RAB has the lower integrated priorities.
The number of selected RABs is specified by the UlLdrBERateReductionRabNum(BSC6900,BSC6910) or DlLdrBERateReductionRabNum(BSC6900,BSC6910)
parameter.
If multiple RABs have the same integrated priority, the RAB with the highest rate is selected.

3. If services can be selected, the action is successful. If services cannot be selected, the action fails. The LDR algorithm takes the next action.
4. The bandwidth of the selected services is reduced to the specified rate. For details about the rate reduction procedure, see DCCC Feature Parameter Description.
5. The reconfiguration is complete as indicated by the RADIO BEARER RECONFIGURATION message on the Uu interface and through the synchronized radio link
reconfiguration procedure on the Iub interface.

6.3.3 QoS Renegotiation for Uncontrollable Real-Time Services
This section describes the WRFD-010506 RAB Quality of Service Renegotiation over the Iu Interface feature.
Uncontrollable real-time services refer to PS streaming services. The load of PS streaming services can be reduced by QoS renegotiation that adjusts the rates of real-time
services.
Due to the QoS requirement, the traffic rate of PS streaming services cannot be automatically reduced in the same way as BE services. For PS streaming services, GBR is
specified in RAB assignment procedure and must be guaranteed. When the system needs to adjust service rate to relieve the system load, the RNC has to initiate rate
renegotiation over the Iu interface by requesting new RAB parameters with a lower bit rate for real time service using the RAB Modification procedure.
The RNC will request a new MBR and GBR that are the lowest ones among the alternative configurations in the RAB ASSIGNMENT message from the CN. However, the CN can
decide how to react to the request upon reception of the RAB MODIFY REQUEST message.
QoS renegotiation for uncontrollable real-time services is implemented as follows:

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1. The LDR algorithm sorts RABs for real-time services in the PS domain in ascending order of integrated priority.
2. The LDR algorithm selects RABs with the lowest integrated priorities for QoS renegotiation. The number of selected RABs is specified by the UlLdrPsRTQosRenegRabNum
(BSC6900,BSC6910) or DlLdrPsRTQosRenegRabNum(BSC6900,BSC6910) parameter. If the RNC cannot find an appropriate service for the QoS renegotiation, the action
fails. The LDR algorithm takes the next action.
3. The LDR algorithm performs QoS renegotiation for the selected services. The GBR during the service setup is the minimum rate of the service after the QoS renegotiation.
4. The RNC initiates the RAB MODIFY REQUEST message to the CN for the QoS renegotiation. Upon reception of the RAB MODIFY REQUEST message, the CN sends the
RAB ASSIGNMENT REQUEST message to the RNC for RAB parameter reconfiguration.

6.3.4 Inter-RAT Handover in the CS Domain
This action is performed only when the CS inter-RAT handover algorithm is enabled.
The size and coverage mode of a 2G cell are different from those of a 3G cell. Therefore, inter-RAT blind handover is not considered in this document.
Inter-RAT handover in the CS domain involves the following actions.

Inter-RAT Should Be Load-based Handover in the CS Domain
The LDR algorithm implements the "Inter-RAT Should Be Load-based Handover in the CS Domain" action as follows:
1. The LDR algorithm sorts UEs with the "service handover" IE set to "handover to GSM should be performed" in the CS domain in ascending order of integrated priority.
2. The LDR algorithm selects UEs with the lowest integrated priorities. The number of selected UEs is specified by the UlCSInterRatShouldBeHOUeNum(BSC6900,BSC6910)
or DlCSInterRatShouldBeHOUeNum(BSC6900,BSC6910) parameter.
3. After selecting a UE, the LDR module sends the load-based handover command to the inter-RAT handover module, requesting the inter-RAT handover module to hand over
the UE to the 2G system.
4. The handover module checks the compressed mode capability of the UE to decide whether to trigger the inter-RAT handover.
5. If the UE does not meet the inter-RAT handover criteria, the algorithm takes the next action.

Inter-RAT Should Not Be Load-based Handover in the CS Domain
The algorithm for this action is the same as that for the action "Inter-RAT Should Be Load-based Handover in the CS Domain." The difference is that this action involves only CS
users with the "service handover" IE set to "handover to GSM should not be performed."
The number of selected UEs is specified by the UlCSInterRatShouldNotHOUeNum(BSC6900,BSC6910) or DlCSInterRatShouldNotHOUeNum(BSC6900,BSC6910)
parameter.

6.3.5 Inter-RAT Handover in the PS Domain
This action is performed only when the PS inter-RAT handover algorithm is enabled.
Inter-RAT handover in the PS domain involves the following actions.

Inter-RAT Should Be Load-based Handover in the PS Domain
The algorithm for this action is the same as that for the action "Inter-RAT Should Be Load-based Handover in the CS Domain." The difference is that this action involves only PS
users with the "service handover" IE set to "handover to GSM should be performed."
The number of controlled UEs is determined by the UlPSInterRatShouldBeHOUeNum(BSC6900,BSC6910) or DlPSInterRatShouldBeHOUeNum(BSC6900,BSC6910)
parameter.

Inter-RAT Should Not Be Load-based Handover in the PS Domain
The algorithm for this action is the same as that for the action "Inter-RAT Should Not Be Load-based Handover in the CS Domain." The difference is that this action involves only
PS users with the "service handover" IE set to "handover to GSM should not be performed."
The number of controlled UEs is specified by the UlPSInterRatShouldNotHOUeNum(BSC6900,BSC6910) or DlPSInterRatShouldNotHOUeNum(BSC6900,BSC6910)
parameter.
NOTE:
HSPA services can be selected only when HsdpaCMPermissionInd(BSC6900,BSC6910) is set to TRUE and HsupaCMPermissionInd(BSC6900,BSC6910) is not set to
Limited.
For details about the two parameters, see Handover Feature Parameter Description.

6.3.6 AMR Rate Reduction
This action is performed only when the sub-parameter CS_AMRC_SWITCH of the parameter CsSwitch(BSC6900,BSC6910) is set to 1.

AMR Rate Reduction in the Downlink
AMR rate reduction in the downlink is implemented as follows:
1. The LDR algorithm sorts the AMR RABs in ascending order of integrated priority.
2. The LDR algorithm selects the RABs with the lowest integrated priorities and with the rates higher than the GBR for AMR services (conversational). The number of selected
RABs is specified by the DlLdrAMRRateReductionRabNum(BSC6900,BSC6910) parameter. If the RNC cannot find an appropriate RAB for the AMR rate reduction, the
algorithm triggers the next action.
3. The RNC sends the rate control request message through the Iu interface to the CN to adjust the AMR rate to the GBR.

AMR Rate Reduction in the Uplink
In the uplink, the LDR algorithm is implemented as follows:
1. The LDR algorithm sorts the AMR RABs in ascending order of integrated priority.
2. The LDR algorithm selects the RABs with the lowest integrated priorities and with the rates higher than the GBR for AMR services (conversational). The number of selected
RABs is specified by the UlLdrAMRRateReductionRabNum(BSC6900,BSC6910) parameter. If the RNC cannot find an appropriate RAB for the AMR rate reduction, the
algorithm triggers the next action.
3. The RNC sends the TFC CONTROL command to the UE to change the AMR rate to the GBR.

6.3.7 Code Reshuffling
This section describes the WRFD-020108 Code Resource Management feature.
To optimize the code usage efficiency, the "left most" principle is adopted in initial code allocation procedure. That is, the code with minimum SF is reserved to ensure the
availability of codes for continuous use. However, the code tree may not obey the "left most" principle in actual service implementation. Code reshuffling is used to ensure that the
code tree complies with the "left most" principle.
When a cell is in the basic congestion state due to insufficient code resource, code reshuffling can be performed to reserve sufficient code resource for subsequent services. Code
sub-tree adjustment refers to the switching of users from one code sub-tree to another. It is used for decreasing the code fragments to release smaller codes.
Code reshuffling is implemented as follows:
1. The LDR algorithm initializes SF_Cur to CellLdrSfResThd(BSC6900,BSC6910).
2. The LDR algorithm traverses all the sub-trees with this SF_Cur at the root node except the sub-trees occupied by common channels and HSDPA channels, and takes the
sub-trees in which the number of users is not larger than the value of MaxUserNumCodeAdj(BSC6900,BSC6910) as candidate sub-trees for code reshuffling.
l

If such candidate sub-trees are available, the algorithm goes to step 3.

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If no such candidate sub-tree is available, sub-tree selection fails. This procedure ends.

3. The LDR algorithm selects a sub-tree from the candidate sub-trees according to the setting of LdrCodePriUseInd(BSC6900,BSC6910).
l

If this parameter is set to TRUE, the algorithm selects the sub-tree with the largest code number from the candidates.

l

If this parameter is set to FALSE, the algorithm selects the sub-tree with the smallest number of users from the candidates. If multiple sub-trees have the same number
of users, the algorithm selects the sub-tree with the largest code number.

4. The LDR algorithm treats each user in the sub-tree as a new user and allocates code resource to them.
5. The LDR algorithm initiates the reconfiguration procedure for each user in the sub-tree and reconfigures the channelization codes of the users based on the newly allocated
code resource.
The reconfiguration procedure on the Uu interface is initiated through the PHYSICAL CHANNEL RECONFIGURATION message; the reconfiguration procedure on the Iub
interface is initiated through the RL RECONFIGURATION message.
The following figure shows an example of code reshuffling. In this example, CellLdrSfResThd(BSC6900,BSC6910) is set to SF8, and MaxUserNumCodeAdj
(BSC6900,BSC6910) is set to 1.
Figure 6-3 Code reshuffling

6.3.8 MBMS Power Reduction
NOTE:
Some MBMS-related algorithms do not take effect on the BSC6910 because the BSC6910 does not support MBMS-related features.
The downlink power load can be reduced by lowering the power on MBMS traffic channels.
MBMS power reduction is implemented as follows:
1. The LDR algorithm sorts RABs in ascending order of integrated priority.
2. The LDR algorithm selects a RAB with the lowest integrated priority and with the current power being higher than the minimum transmit power of the corresponding MTCH.
(The ARP value of the RAB is higher than MbmsDecPowerRabThd(BSC6900,BSC6910).)
3. The LDR algorithm triggers a reconfiguration procedure to set the power to the minimum transmit power of the FACH onto which the MTCH is mapped.
The reconfiguration procedure on the Iub interface is implemented through the COMMON TRANSPORT CHANNEL RECONFIGURATION REQUEST message.

6.3.9 PS Inter-RAT Handover from UMTS to LTE
PS inter-RAT handover from UMTS to LTE involves the WRFD-150216 Load Based PS Redirection from UMTS to LTE feature and the WRFD-150217 Load Based PS Handover
from UMTS to LTE feature. For details of the two features, see Interoperability Between UMTS and LTE Feature Parameter Description.

6.3.10 LDR Actions for a UE in the Uplink and Downlink
In most cases, uplink and downlink LDR actions are independent of each other. Sometimes, however, uplink and downlink LDR actions may apply to the same UE.
l

If the LDR actions in the uplink and downlink are the same, these LDR actions can be performed simultaneously.
Take the BE service of a UE as an example. Rate reduction must be performed on the BE service of the UE in the uplink and downlink simultaneously. In this situation, the
RNC needs to send only one RADIO BEARER RECONFIGURATION message, which indicates that BE service rate reduction is performed simultaneously in the uplink and
downlink of this UE.

l

If the LDR actions in the uplink and downlink are different, these LDR actions are performed as follows:
n

If LDR actions in the uplink are inter-frequency or inter-RAT handovers, or PS inter-RAT handovers from UMTS to LTE, then only LDR actions in the uplink are performed.

n

If LDR actions in the downlink are inter-frequency or inter-RAT handovers, or PS inter-RAT handover from UMTS to LTE, then only LDR actions in the downlink are
performed.

n

LDR actions are performed in the direction with fewer UEs.

7 Network Impact
7.1 RRC Redirection for Service Steering
7.1.1 System Capacity
No impact.

7.1.2 Network Performance
During the RRC connection setup procedure, the Load Control feature performs inter-frequency or inter-RAT service steering and load sharing based on the RRC connection setup
cause. This feature performs load sharing based on the signal quality, load, and the redirection percentage of the cell the UE accesses. This feature also affects the access delay
of UEs that are to be redirected to inter-frequency or inter-RAT cells.

7.2 FACH Power Control of RRC Phase
7.2.1 System Capacity
The FACH power control of RRC phase function increases the FACH transmit power. As a result, the amount of power available for dedicated channels decreases. This reduces
downlink cell/UE throughput and the R99 UE admission rate.
Assume that the cell transmit power is 20 W, the P-CPICH transmit power is 10% of the cell transmit power, and the FACH transmit power is 1 dB. In this example, if an additional
2 dB power is allocated to the FACH, then the amount of power available for the dedicated channel may be insufficient and five AMR UEs may fail to be admitted into this cell.

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7.2.2 Network Performance
The FACH power control of RRC phase function increases the downlink FACH power and enables UEs to receive messages more accurately. When RRC connection setups fail
due to Uu-interface synchronization timeout, this function increases the RRC connection setup success rate. The level of increase in the RRC connection setup success rate is
determined by the coverage and interference in the live network.
In situations where weak coverage is not the major cause for RRC connection setup failures or where interference in the live network is strong, this function does not significantly
increase the RRC connection setup success rate.
l

The smaller the increase in the FACH power (MaxFachPower(BSC6900,BSC6910)) is, the less noticeable the improvement of the RRC connection setup success rate.

l

The larger the increase in the FACH transmit power, the stronger the interference. In this situation, downlink coverage will deteriorate, which may result in a higher call drop
rate.

8 Engineering Guidelines
8.1 WRFD-021104 Emergency Call
8.1.1 Deployment
Requirements
l

Hardware

This feature does not have special hardware requirements.
l

Other features

This feature does not depend on other features.
l

License

This feature is not under license control.

Data Preparation
None

Activation
This feature does not need to be activated.

Activation Observation
Use a UE to initiate an emergency call. Verify that the emergency call is successfully established.

Deactivation
This feature does not need to be deactivated.

8.2 WRFD-010506 RAB Quality of Service Renegotiation over Iu Interface
8.2.1 Deployment
Requirements
l

Hardware
The NEs in the core network must support selective configuration of the maximum bit rate (MBR) and guaranteed bit rate (GBR).

l

Other features
This feature does not depend on other features.

l

License
This feature is not under license control.

Data Preparation
None

Activation
1. Run the RNC MML command MOD UCELLALGOSWITCH (CME single configuration: UMTS Cell Configuration Express > Cell Parameters > Cell Algorithm Switches;
CME batch modification center: Modifying UMTS Cell Parameters in Batches) to enable the cell-level LDR algorithm. In this step, set Cell LDC algorithm switch to
UL_UU_LDR(Uplink UU LDR Algorithm), DL_UU_LDR(Downlink UU LDR Algorithm), and CELL_CREDIT_LDR(Credit LDR Algorithm).
2. Run the RNC MML command MOD UNODEBALGOPARA (CME single configuration: NodeB Configuration Express > IUB_RNC > NodeB Basic Information > NodeB
Algorithm Parameters; CME batch modification center: Modifying Logical NodeB Parameters in Batches) to enable the NodeB-level LDR algorithm. In this step, set NodeB
LDC algorithm switch to IUB_LDR(IUB LDR Algorithm), LCG_CREDIT_LDR(LCG Credit LDR Algorithm), and NODEB_CREDIT_LDR(NodeB Credit LDR Algorithm).
3. Run the RNC MML command MOD UCELLLDM (CME single configuration: UMTS Cell Configuration Express > Cell Parameters > Cell Oriented LDM Algorithm
Parameters; CME batch modification center: Modifying UMTS Cell Parameters in Batches) to set the cell-level LDR trigger threshold. In this step, set UL/DL LDR Trigger
threshold and DL State Trans Hysteresis threshold according to the network plan.
4. Run the RNC MML command MOD UNODEBLDR (CME single configuration: NodeB Configuration Express > IUB_RNC > NodeB Basic Information > NodeB LDR
Algorithm Parameters; CME batch modification center: Modifying Logical NodeB Parameters in Batches) to set the NodeB-level LDR credit spreading factor (SF) reserved
threshold. In this step, set Ul LDR Credit SF reserved threshold and Dl LDR Credit SF reserved threshold according to the network plan.
5. Run the RNC MML command MOD UCELLLDR (CME single configuration: UMTS Cell Configuration Express > Cell Parameters > Cell LDR Algorithm Parameters;
CME batch modification center: Modifying UMTS Cell Parameters in Batches) to set the NodeB credit LDR threshold for the local cell. In this step, set Ul LDR Credit SF
reserved threshold and DL LDR Credit SF reserved threshold according to the network plan.
6. Run the RNC MML command SET ULDCPERIOD (CME single configuration: UMTS Radio Global Configuration Express > Load Control Parameter Configuration >
RNC Oriented LDC Algorithm Cycle Length; CME batch modification center: Modifying RNC Parameters in Batches). In this step, set LDR period timer length according
to the network plan.
7. Run the RNC MML command MOD UCELLLDR (CME single configuration: UMTS Cell Configuration Express > Cell Parameters > Cell LDR Algorithm Parameters;
CME batch modification center: Modifying UMTS Cell Parameters in Batches) to enable QoS renegotiation on real-time services. In this step, set DL LDR first action to
QOSRENEGO.

Activation Observation
1. Establish a PS streaming service.
2. Trigger LDR in the cell based on the cell LDR threshold specified in the activation procedure.
3. If RAB MODIFY REQUEST is traced on the Iu interface, this feature has been activated.

Deactivation
1. Run the RNC MML command MOD UCELLALGOSWITCH (CME single configuration: UMTS Cell Configuration Express > Cell Parameters > Cell Algorithm Switches;

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CME batch modification center: Modifying UMTS Cell Parameters in Batches) to disable the cell-level LDR algorithm. In this step, clear UL_UU_LDR(Uplink UU LDR
Algorithm), DL_UU_LDR(Downlink UU LDR Algorithm), and CELL_CREDIT_LDR(Credit LDR Algorithm) from the Cell LDC algorithm switch drop-down list box.
2. Run the RNC MML command MOD UNODEBALGOPARA (CME single configuration: NodeB Configuration Express > IUB_RNC > NodeB Basic Information > NodeB
Algorithm Parameters; CME batch modification center: Modifying Logical NodeB Parameters in Batches) to disable the NodeB-level LDR algorithm. In this step, clear
IUB_LDR(IUB LDR Algorithm), LCG_CREDIT_LDR(LCG Credit LDR Algorithm), and NODEB_CREDIT_LDR(NodeB Credit LDR Algorithm) from the NodeB LDC
algorithm switch drop-down list box.

MML Command Examples
/Activating RAB Quality of Service Renegotiation over Iu Interface*/
//Enabling the cell-level LDR algorithm
MOD UCELLALGOSWITCH: CellId=111, NBMLdcAlgoSwitch= UL_UU_LDR-1&DL_UU_LDR-1&CELL_CREDIT_LDR-1;
//Enabling the NodeB-level LDR algorithm
MOD UNODEBALGOPARA: NodeBName="NODEB1", NodeBLdcAlgoSwitch=IUB_LDR-1&NODEB_CREDIT_LDR-1&LCG_CREDIT_LDR-1;
//Enabling QoS renegotiation on real-time services
MOD UCELLLDR: CellId=111, DlLdrFirstAction=QoSRenego;
/Deactivating RAB Quality of Service Renegotiation over Iu Interface*/
//Disabling the cell-level LDR algorithm
MOD UCELLALGOSWITCH: CellId=111, NBMLdcAlgoSwitch= UL_UU_LDR-0&DL_UU_LDR-0&CELL_CREDIT_LDR-0;
//Disabling the NodeB-level LDR algorithm
MOD UNODEBALGOPARA: NodeBName="NODEB1", NodeBLdcAlgoSwitch=IUB_LDR-0&NODEB_CREDIT_LDR-0&LCG_CREDIT_LDR-0;

8.3 WRFD-020102 Load Measurement
8.3.1 Deployment
Requirements
l

Hardware
In RAN14.0, the load measurement of total uplink services is introduced, and the dependencies on NodeB are as follows:

l

n

The BTS3812, BTS3812E and BTS3812AE do not report the actual service load.

n

The DBS3800 does not report the actual service load.

n

If the 3900 series base station is configured with the WBBPa board or the RRU3801C 20 W, the actual service load is not reported. In other configurations, the actual
service load is reported.

Other features
This feature does not depend on other features.

l

License
This feature is not under license control.

Data Preparation
None

Activation
1. The function of measurement on RTWP, TCP, and non-HSPA power is always activated. Therefore, this feature does not need to be activated.
2. Run the RNC MML command MOD UCELLALGOSWITCH (CME single configuration: UMTS Cell Configuration Express > Cell Parameters > Cell Algorithm Switches;
CME batch modification center: Modifying UMTS Cell Parameters in Batches). In this step, select HSDPA_PBR_MEAS(HSDPA PBR Meas Algorithm) and
HSUPA_PBR_MEAS(HSUPA PBR Meas Algorithm) from the Cell CAC algorithm switch drop-down list to activate the cell-level load measurement for HSDPA and
HSUPA.
3. Run the RNC MML command MOD UCELLLDM (CME single configuration: UMTS Cell Configuration Express > Cell Parameters > Cell Oriented LDM Algorithm
Parameters; CME batch modification center: Modifying UMTS Cell Parameters in Batches). In this step, set load monitoring parameters, including the uplink/downlink load
reshuffling (LDR) algorithm trigger/release thresholds and uplink/downlink overload congestion (OLC) algorithm trigger/release thresholds to appropriate values.
4. Run the RNC MML command SET ULDM (CME single configuration: UMTS Radio Global Configuration Express > Load Monitoring Parameter Configuration > LDM
Algorithm Parameters of RNC; CME batch modification center: Modifying RNC Parameters in Batches). In this step, set parameters associated with load measurement,
report period, and smoothing filter length according to the network plan.

Activation Observation
1. On the RNC LMT, open the Monitor tab page. In the Monitor navigation tree, double-click UMTS Monitoring > Cell Performance Monitoring, and create tasks of
monitoring Cell DL Carrier TX Power and RTWP.
2. Check whether the uplink full-bandwidth RX power of the cell is displayed in the RTWP monitoring window.
3. Check whether the downlink carrier TX power is displayed in the Cell DL Carrier TX Power monitoring window.

Deactivation
1. The measurement on RTWP, TCP, and non-HSPA power has been activated and cannot be deactivated.
2. Run the RNC MML command MOD UCELLALGOSWITCH (CME single configuration: UMTS Cell Configuration Express > Cell Parameters > Cell Algorithm Switches;
CME batch modification center: Modifying UMTS Cell Parameters in Batches). In this step, clear HSDPA_PBR_MEAS(HSDPA PBR Meas Algorithm) and
HSUPA_PBR_MEAS(HSUPA PBR Meas Algorithm) from the Cell CAC algorithm switch drop-down list to deactivate the cell-level load measurement for HSDPA and
HSUPA.

MML Command Examples
//Activating load measurement

MOD UCELLALGOSWITCH: CellId=100, NBMCacAlgoSwitch=HSDPA_PBR_MEAS-1&HSUPA_PBR_MEAS-1;
MOD UCELLLDM: CellId=1, UlLdrTrigThd=55, UlLdrRelThd=45, DlLdrTrigThd=70, DlLdrRelThd=60, UlOlcTrigThd=95, UlOlcRelThd=85, DlOlcTrigThd=95, DlOlcRelTh
SET ULDM: UlBasicCommMeasFilterCoeff=D6, ChoiceRprtUnitForUlBasicMeas=TEN_MSEC, TenMsecForUlBasicMeas=100, DlBasicCommMeasFilterCoeff=D6;
//Deactivating load measurement
MOD UCELLALGOSWITCH: CellId=100, NBMCacAlgoSwitch=HSDPA_PBR_MEAS-0&HSUPA_PBR_MEAS-0;

8.4 WRFD-020106 Load Reshuffling
8.4.1 Deployment
Requirements
l

Hardware
This feature does not have special hardware requirements.

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Load Control Feature Parameter Description

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Other features
This feature does not depend on other features.

l

License
This feature is not under license control.

Data Preparation
None

Activation
NOTE:
The following section provides the related parameters and commands. The parameter settings depend on the network plan.
1. Enable the related load reshuffling algorithms.
Run the RNC MML command MOD UCELLALGOSWITCH (CME single configuration: UMTS Cell Configuration Express > Cell Parameters > Cell Algorithm Switches;
CME batch modification center: Modifying UMTS Cell Parameters in Batches). In this step, turn on the following switches of Cell LDC algorithm switch:
l

UL_UU_LDR(Uplink UU LDR Algorithm): UL UU load reshuffling algorithm

l

DL_UU_LDR(Downlink UU LDR Algorithm): DL UU load reshuffling algorithm

l

CELL_CODE_LDR(Code LDR Algorithm): Code reshuffling algorithm

l

CELL_CREDIT_LDR(Credit LDR Algorithm): Credit reshuffling algorithm
Run the RNC MML command MOD UNODEBALGOPARA (CME single configuration: NodeB Configuration Express > IUB_RNC > NodeB Basic Information >
NodeB Algorithm Parameters; CME batch modification center: Modifying Logical NodeB Parameters in Batches). In this step, turn on the following switches of NodeB
LDC algorithm switch:

l

IUB_LDR(IUB LDR Algorithm): NodeB Iub reshuffling algorithm

l

NODEB_CREDIT_LDR(NodeB Credit LDR Algorithm): NodeB-level credit reshuffling algorithm

l

LCG_CREDIT_LDR(LCG Credit LDR Algorithm): cell-group-level credit reshuffling algorithm

2. Set the related thresholds.
l

Run the RNC MML command MOD UCELLLDM (CME single configuration: UMTS Cell Configuration Express > Cell Parameters > Cell Oriented LDM Algorithm
Parameters; CME batch modification center: Modifying UMTS Cell Parameters in Batches) to set LDR thresholds (UL/DL LDR Trigger/release threshold and DL State
Trans Hysteresis threshold).

l

Run the RNC MML command MOD UCELLLDR (CME single configuration: UMTS Cell Configuration Express > Cell Parameters > Cell LDR Algorithm Parameters;
CME batch modification center: Modifying UMTS Cell Parameters in Batches) to set code LDR threshold (Cell LDR SF reserved threshold) and LDR actions.

l

Run the RNC MML command MOD UNODEBLDR (CME single configuration: NodeB Configuration Express > IUB_RNC > NodeB Basic Information > NodeB LDR
Algorithm Parameters; CME batch modification center: Modifying Logical NodeB Parameters in Batches) to set the cell-group-level or NodeB-level LDR thresholds
(Ul/DL LDR Credit SF reserved threshold).

l

Run the RNC MML command MOD UCELLLDR (CME single configuration: UMTS Cell Configuration Express > Cell Parameters > Cell LDR Algorithm Parameters;
CME batch modification center: Modifying UMTS Cell Parameters in Batches) to set the cell-level credit LDR thresholds (Ul/DL LDR Credit SF reserved threshold).

3. Run the RNC MML command SET ULDCPERIOD (CME single configuration: UMTS Radio Global Configuration Express > Load Control Parameter Configuration >
RNC Oriented LDC Algorithm Cycle Length; CME batch modification center: Modifying RNC Parameters in Batches) to set the LDR period (LDR period timer length).
4. Run the RNC MML command SET UCORRMALGOSWITCH (CME single configuration: UMTS Radio Global Configuration Express > Connection_Oriented RRM
Switch Configuration > Connection Oriented Algorithm Switches; CME batch modification center: Modifying RNC Parameters in Batches) to enable the functions used in
the LDR actions.
l

Inter-frequency load handover
Set HandOver Switch to HO_INTER_FREQ_HARD_HO_SWITCH and HO_ALGO_LDR_ALLOW_SHO_SWITCH.

l

BE service rate reduction
Set Dynamic Resource Allocation Switch to DRA_DCCC_SWITCH.

l

CS domain inter-RAT load handover
Set HandOver Switch to HO_INTER_RAT_CS_OUT_SWITCH.

l

PS domain inter-RAT load handover
Set HandOver Switch to HO_INTER_RAT_PS_OUT_SWITCH.

l

Downsizing the bit rate of AMR voice
Set CS Algorithm Switch to CS_AMRC_SWITCH.

Activation Observation
The following section takes R99 non-real-time data services as an example to describe how to verify BE service rate reduction in the basic congestion state.
1. Simulate a situation in which a UE is in idle mode and the UE has camped on CELL_A11.
2. On the RNC LMT, open the Monitor tab page. In the Monitor Navigation Tree tab page, double-click UMTS Monitoring > Cell Performance Monitoring. In the displayed
dialog box, create a Cell DL Throughput monitoring task.
3. Connect the UE to a laptop through the USB port and initiate a data service. Check the rb-mappinginfo information element (IE) contained in the RRC_RB_SETUP message
traced over the Uu interface. The value of rrc-Stateinditator should be CELL_DCH.
4. Use the UE to log in to the FTP server and then start FTP downloading. Data downloading should be normal.
5. Run the NodeB MML command STR DLSIM to simulate a situation in which the power load reaches 75%. The RRC_RB_RECFG message should be displayed in the Uu
Interface Trace dialog box. In the Cell DL Throughput of the Connection Performance Monitoring dialog box, you can view a decrease in the downlink RB rate configured on
the RNC.
6. Run the NodeB MML command STP DLSIM to stop the simulated power load. In the Uu Interface Trace dialog box, the RRC_RB_RECFG message should be displayed. In
the Cell DL Throughput of the Connection Performance Monitoring dialog box, you can view an increase in the downlink RB rate configured on the RNC.

Deactivation
1. Run the RNC MML command MOD UCELLALGOSWITCH (CME single configuration: UMTS Cell Configuration Express > Cell Parameters > Cell Algorithm Switches;
CME batch modification center: Modifying UMTS Cell Parameters in Batches). In this step, clear the following switches from Cell LDC algorithm switch:
l

UL_UU_LDR(Uplink UU LDR Algorithm): UL UU load reshuffling algorithm

l

DL_UU_LDR(Downlink UU LDR Algorithm): DL UU load reshuffling algorithm

l

CELL_CODE_LDR(Code LDR Algorithm): Code reshuffling algorithm

l

CELL_CREDIT_LDR(Credit LDR Algorithm): Credit reshuffling algorithm

2. Run the RNC MML command MOD UNODEBALGOPARA (CME single configuration: NodeB Configuration Express > IUB_RNC > NodeB Basic Information > NodeB
Algorithm Parameters; CME batch modification center: Modifying Logical NodeB Parameters in Batches). In this step, clear the following switches from NodeB LDC
algorithm switch:
l

IUB_LDR(IUB LDR Algorithm): NodeB Iub reshuffling algorithm

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Load Control Feature Parameter Description

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NODEB_CREDIT_LDR(NodeB Credit LDR Algorithm): NodeB-level credit reshuffling algorithm

l

LCG_CREDIT_LDR(LCG Credit LDR Algorithm): cell-group-level credit reshuffling algorithm

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MML Command Examples
//Activating Load Reshuffling
//Enabling load reshuffling algorithms
MOD UCELLALGOSWITCH: CellId=100, NBMLdcAlgoSwitch=UL_UU_LDR-1&DL_UU_LDR-1&CELL_CODE_LDR-1&CELL_CREDIT_LDR-1;
MOD UNODEBALGOPARA: NodeBName="nodeb1", NodeBLdcAlgoSwitch=IUB_LDR-1&NODEB_CREDIT_LDR-1&LCG_CREDIT_LDR-1;
//Setting load reshuffling thresholds

MOD UCELLLDM: CellId=100, UlLdrTrigThd=55, UlLdrRelThd=45, DlLdrTrigThd=70, DlLdrRelThd=60, UlOlcTrigThd=95, UlOlcRelThd=85, DlOlcTrigThd=95, DlOlcRel
//Setting code reshuffling thresholds
MOD UCELLLDR: CellId=100, DlLdrFirstAction=CodeAdj, DlLdrSecondAction=InterFreqLDHO, CellLdrSfResThd=SF8;
//Setting NodeB-level credit reshuffling thresholds
MOD UNODEBLDR: NodeBName="nodeb1", UlLdrCreditSfResThd=SF8, DlLdrCreditSfResThd=SF8;
//Setting cell-level credit reshuffling thresholds
MOD UCELLLDR: CellId=100, UlLdrCreditSfResThd=SF8, DlLdrCreditSfResThd=SF8;
//Setting load reshuffling period
SET ULDCPERIOD: LDRPERIODTIMERLEN=10;
//Turning on load reshuffling function switches
SET UCORRMALGOSWITCH: DraSwitch=DRA_DCCC_SWITCH-1,CsSwitch=CS_AMRC_SWITCH-1, HoSwitch=HO_ALGO_LDR_ALLOW_SHO_SWITCH-1&HO_INTER_RAT_CS_OUT_SWITCH
//Deactivating Load Reshuffling
MOD UCELLALGOSWITCH: CellId=100, NBMLdcAlgoSwitch=UL_UU_LDR-0&DL_UU_LDR-0&CELL_CODE_LDR-0&CELL_CREDIT_LDR-0;
MOD UNODEBALGOPARA: NodeBName="nodeb1", NodeBLdcAlgoSwitch=IUB_LDR-0&NODEB_CREDIT_LDR-0&LCG_CREDIT_LDR-0;

8.5 WRFD-020108 Code Resource Management
8.5.1 Deployment
Requirements
l

Hardware
This feature does not have special hardware requirements.

l

Other features
This feature does not depend on other features.

l

License
This feature is not under license control.

Data Preparation
None

Activation
NOTE:
The code allocation function is always activated. The following activation procedure applies only to the code reshuffling function.
1. Run the RNC MML command MOD UCELLALGOSWITCH (CME single configuration: UMTS Cell Configuration Express > Cell Parameters > Cell Algorithm Switches;
CME batch modification center: Modifying UMTS Cell Parameters in Batches), and then enable the required LDR algorithm switches for resources (CELL_CODE_LDR(Code
LDR Algorithm)) through setting the Cell LDC algorithm switch parameter.
2. Run the RNC MML command MOD UCELLLDR (CME single configuration: UMTS Cell Configuration Express > Cell Parameters > Cell LDR Algorithm Parameters;
CME batch modification center: Modifying UMTS Cell Parameters in Batches) to set code LDR threshold (Cell LDR SF reserved threshold) and set CodeAdj(Code adjust)
as one of the DL LDR actions.
3. Run the RNC MML command SET ULDCPERIOD (CME single configuration: UMTS Radio Global Configuration Express > Load Control Parameter Configuration >
RNC Oriented LDC Algorithm Cycle Length; CME batch modification center: Modifying RNC Parameters in Batches) to set the LDR period (LDR period timer length).

Activation Observation
1. Simulate a situation in which a UE is in idle mode and the UE has camped on CELL_A11.
2. Set the PS service type to interactive on the HLR.
3. Run the RNC MML command MOD UCELLLDR with Cell LDR SF reserved threshold set to SF8 and Max user number for code adjust to 1.
4. Connect the UE to a laptop through the USB port and initiate a data service.
Expected result: Services are set up on the DCH successfully. You can view the rb-mappinginfo information element (IE) in the RRC_RB_SETUP message traced over the
Uu interface. In the Cell Code Tree Monitor window, you can view that the service occupies code SF32(4).
5. Use the UE to log in to an FTP server on the Internet and performs an FTP download.
6. Run the RNC MML command DSP UCELLCHK to check the cell health status. The status of cell code congestion should be displayed as basic congestion.
7. Run the RNC MML command RMV URESERVEOVSF to release the service that occupies code SF32(1).
8. Run the RNC MML command DSP UCELLCHK to check the cell health status. The status of cell code congestion should be displayed as not congested.

Deactivation
Run the RNC MML command MOD UCELLALGOSWITCH (CME single configuration: UMTS Cell Configuration Express > Cell Parameters > Cell Algorithm Switches; CME
batch modification center: Modifying UMTS Cell Parameters in Batches), and then deactivate the required LDR algorithm switches for resources (CELL_CODE_LDR(Code LDR
Algorithm)) by setting the Cell LDC algorithm switch parameter.

MML Command Examples
//Activating Code Resource Management
MOD UCELLALGOSWITCH: CellId=111, NBMLdcAlgoSwitch=CELL_CODE_LDR-1;
MOD UCELLLDR: CellId=111, DlLdrFirstAction=CodeAdj, CellLdrSfResThd=SF8;
SET ULDCPERIOD: LdrPeriodTimerLen=10;
//Verifying Code Resource Management
MOD UCELLLDR: CellId=111, CellLdrSfResThd=SF8, MaxUserNumCodeAdj=1;
DSP UCELLCHK: CHECKSCOPE=CELLID, CELLID=111;
RMV URESERVEOVSF: CellId=111, DLOVSFSF=SF32, DLCODENO=1;
//Deactivating Code Resource Management

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MOD UCELLALGOSWITCH: CellId=111, NBMLdcAlgoSwitch=CELL_CODE_LDR-0;

8.6 WRFD-020401 Inter-RAT Redirection Based on Distance
8.6.1 Deployment
Requirements
l

Hardware
This feature does not have special hardware requirements.

l

Other Features
The feature WRFD-020400 DRD Introduction Package has been configured before this feature is activated.

l

License
The license "Inter System Redirect Based on Distance" on the RNC side has been activated. For details about the license and how to activate the license, see License
Management Feature Parameter Description.

Data Preparation
None

Activation
Activate this feature at the RNC or cell level.
l

l

To activate this feature for the entire RNC, run the RNC MML command SET UDISTANCEREDIRECTION (CME single configuration: UMTS Radio Global Configuration
Express > Directed Retry Parameter Configuration > RNC-Oriented Delay Based RRC Redirection Parameters; CME batch modification center: Modifying RNC
Parameters in Batches) with the following parameter settings:
n

Set Redirection Switch to ON.

n

Set Propagation delay threshold as specified in 3GPP TS 25.433.

n

Set Redirection Factor Of LDR and Redirection Factor Of Normal to appropriate values based on the network plan.

To activate this feature for a cell, run the RNC MML command ADD UCELLDISTANCEREDIRECTION (CME single configuration: UMTS Cell Configuration Express > Cell
Parameters > Cell-Oriented Delay Based RRC Redirection Parameters; CME batch modification center: Modifying UMTS Cell Parameters in Batches) with the following
parameter settings:
n

Set Redirection Switch to ON.

n

Set Propagation delay threshold as specified in 3GPP TS 25.433.

n

Set Redirection Factor Of LDR and Redirection Factor Of Normal to appropriate values based on the network plan.

Activation Observation
1. Start Uu Interface Trace on the RNC LMT, as shown in Figure 8-1.
Figure 8-1 Uu Interface Trace dialog box

2. Simulate a situation in which pilot pollution occurs. Place the UE in a place that is far away from the NodeB and has strong pilot signals. Then, use the UE to establish a CS
voice call.
3. Check the messages traced on the Uu interface.
l

As shown in Figure 8-2, if the RRC CONNECTION REJECT message contains the information element (IE) GSM-Targetcellinfo, the RAN has redirected the UE to the
GSM network, and this feature has been activated.

l

If the RRC CONNECTION REJECT message does not contain the IE GSM-Targetcellinfo, this feature is not activated.
Figure 8-2 GSM-Targetcellinfo IE

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Deactivation
Deactivate this feature at the RNC or cell level.
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To deactivate this feature for the entire RNC, run the RNC MML command SET UDISTANCEREDIRECTION (CME single configuration: UMTS Radio Global Configuration
Express > Directed Retry Parameter Configuration > RNC-Oriented Delay Based RRC Redirection Parameters; CME batch modification center: Modifying RNC
Parameters in Batches). In this step, set Redirection Switch to OFF.

l

To deactivate this feature for a cell, run the RNC MML command MOD UCELLDISTANCEREDIRECTION (CME single configuration: UMTS Cell Configuration Express >
Cell Parameters > Cell-Oriented Delay Based RRC Redirection Parameters; CME batch modification center: Modifying UMTS Cell Parameters in Batches). In this step,
set Redirection Switch to OFF.

MML Command Examples
//Activating Inter-RAT Redirection Based on Distance
//Activating this feature for the entire RNC
SET UDISTANCEREDIRECTION: RedirSwitch=ON, DelayThs=100, RedirFactorOfLDR=70, RedirFactorOfNorm=60;
//Activating this feature for a specified cell
ADD UCELLDISTANCEREDIRECTION: CellId=1, RedirSwitch=ON, DelayThs=100, RedirFactorOfLDR=80, RedirFactorOfNorm=60;
//Deactivating Inter-RAT Redirection Based on Distance
//Deactivating this feature for the entire RNC
SET UDISTANCEREDIRECTION: RedirSwitch=OFF;
//Deactivating this feature for a specified cell
MOD UCELLDISTANCEREDIRECTION: CellId=1, RedirSwitch=OFF;

8.7 WRFD-02040003 Inter System Redirect
8.7.1 When to Use Inter System Redirect
None

8.7.2 Required Information
None

8.7.3 Deployment
Requirements
l

Hardware
This feature does not have special hardware requirements.

l

Other features
The feature WRFD-020400 DRD Introduction Package has been configured before this feature is activated.

l

License
The license "Inter System Redirect" on the RNC side has been activated. For details about the license and how to activate the license, see License Management Feature
Parameter Description.

Data Preparation
None

Activation
1. Run the RNC MML command SET UCORRMALGOSWITCH (CME single configuration: UMTS Radio Global Configuration Express > Connection_Oriented RRM
Switch Configuration > Connection Oriented Algorithm Switches; CME batch modification center: Modifying RNC Parameters in Batches). In this step, set Direct Retry
Switch to DR_RRC_DRD_SWITCH.
2. Run the RNC MML command SET UDRD (CME single configuration: UMTS Radio Global Configuration Express > Directed Retry Parameter Configuration > RNCOriented DRD Algorithm Parameters; CME batch modification center: Modifying RNC Parameters in Batches). In this step, set ConnectFailRrcRedirSwitch to
Allowed_To_Inter_RAT.

Activation Observation
1. Start Uu Interface Trace on the RNC LMT. Use a UE to initiate an RRC connection setup request.
2. View the Uu interface tracing result and verify that the following conditions are true:
l

The UE sends an RRC_SETUP_REQ message.

l

The RNC responds with an RRC_CONN_REJ message, carrying GSM-TargetCellInfo in the IE redirectioninfo.

Deactivation
Run the RNC MML command SET UDRD (CME single configuration: UMTS Radio Global Configuration Express > Directed Retry Parameter Configuration > RNC-Oriented
DRD Algorithm Parameters; CME batch modification center: Modifying RNC Parameters in Batches). In this step, set RRC redirect switch to OFF or
Only_To_Inter_Frequency.

MML Command Examples
//Activating Inter-System Redirect
SET UCORRMALGOSWITCH: DrSwitch=DR_RRC_DRD_SWITCH-1;

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SET UDRD: ConnectFailRrcRedirSwitch=Allowed_To_Inter_RAT;
//Deactivating Inter-System Redirect
SET UDRD: ConnectFailRrcRedirSwitch=OFF;

8.8 WRFD-020120 Service Steering and Load Sharing in RRC Connection Setup
8.8.1 When to Use Service Steering and Load Sharing in RRC Connection Setup
The Service Steering and Load Sharing in RRC Connection Setup feature applies to networks with multiple UMTS carriers and networks with both GSM and UTMS coverage.
Do not deploy this feature if UEs in idle mode randomly switch between carriers.
If UEs in idle mode preferentially camp on one or several carriers, use this feature and the RAB DRD algorithm together to implement service steering and load sharing among
carriers.
Contact Huawei engineers before activating this feature to prevent any conflicts between the RRC connection setup procedure and the RAB setup procedure.

8.8.2 Required Information
Collect the following information, which helps you determine whether to activate this feature and set the corresponding parameters to proper values:
l

Frequency and frequency band of each carrier

l

Frequency band support capability of UEs

l

Distribution strategies of UEs among multiple carriers

8.8.3 Planning
N/A

8.8.4 Deployment
Requirements
l

License
The license for the WRFD-020120 Service Steering and Load Sharing in RRC Connection Setup feature has been activated. For details about how to activate the license, see
License Management Feature Parameter Description.
Feature ID

Feature Name

License Description

NE

Sales Unit

WRFD-020120

Service Steering and Load
Sharing in RRC Connection
Setup

Service Steering in RRC
Connection Setup

RNC

Erl+Mbps

Data Preparation
Table 8-1 lists the data to prepare before activating this feature.
Table 8-1 Data to prepare before activating this feature
Parameter Name

Parameter ID

Setting Notes

Data source

Traffic Type

TrafficType(BSC6900,BSC6910)

Determine which type of service can be enabled with this feature by taking the
RAB DRD strategy into consideration.

Radio network plan (internal)

Redirection Switch

RedirSwitch(BSC6900,BSC6910)

Determine which type of service can be enabled with this feature by taking the
RAB DRD strategy into consideration.

Radio network plan (internal)

Direct Retry Switch

DrSwitch(BSC6900,BSC6910):
DR_RRC_DRD_SWITCH

None

Radio network plan (internal)

RRC Redirection
Ec/No Threshold

RedirEcN0Thd(BSC6900,BSC6910)

Set this parameter based on the site conditions. This parameter takes effect only
when the RedirBandInd(BSC6900,BSC6910) parameter is set to a specific
frequency band.

Default value/Recommended
value

Redirection Factor Of RedirFactorOfNorm
Normal
(BSC6900,BSC6910)

Set this parameter according to the service steering and load sharing strategy.

Radio network plan (internal)

Redirection Factor Of RedirFactorOfLDR
LDR
(BSC6900,BSC6910)

Set this parameter according to the service steering and load sharing strategy.

Radio network plan (internal)

Redirection target
band indicator

RedirBandInd(BSC6900,BSC6910)

Set this parameter based on the carrier information in section 8.8.2 Required
Information.
l If this parameter is set to DependOnNCell, you do not need to set the
ReDirUARFCNUplinkInd(BSC6900,BSC6910), ReDirUARFCNUplink
(BSC6900,BSC6910), and ReDirUARFCNDownlink(BSC6900,BSC6910)
parameters.
l If this parameter is set to a specific frequency band, frequencies configured
for the ReDirUARFCNUplink(BSC6900,BSC6910) and
ReDirUARFCNDownlink(BSC6900,BSC6910) parameters must fall into this
frequency band.
l If this parameter is set to BandIndNotUsed, frequencies configured for the
ReDirUARFCNUplink(BSC6900,BSC6910) and ReDirUARFCNDownlink
(BSC6900,BSC6910) parameters are not restricted by the value of this
parameter.

Radio network plan (internal)

Redirection Target
UL Frequency Index

ReDirUARFCNUplinkInd
(BSC6900,BSC6910)

Set this parameter based on the carrier information in section 8.8.2 Required
Information.
If this parameter is set to FALSE, you do not need to set the
ReDirUARFCNUplink(BSC6900,BSC6910) parameter. ReDirUARFCNUplink
(BSC6900,BSC6910) is automatically configured according to the relationship
between the uplink UARFCN and downlink UARFCN.

Engineering design

Redirection target
uplink UARFCN

ReDirUARFCNUplink
(BSC6900,BSC6910)

Set this parameter based on the carrier information in section 8.8.2 Required
Information.

Radio network plan (internal)

Redirection target
downlink UARFCN

ReDirUARFCNDownlink
(BSC6900,BSC6910)

Set this parameter based on the carrier information in section 8.8.2 Required
Information.

Engineering design

Precautions
Contact Huawei engineers to confirm if this feature can be deployed on your network. This feature can be deployed only after taking the radio access network into consideration.

Activation (Using MML Commands)

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NOTE:
l
l

Configure parameters based on the Setting Notes in Table 8-1.
If a parameter is set at both the RNC level and the cell level, the cell-level setting takes precedence.

1. Run the RNC MML command SET UCORRMALGOSWITCH to activate RRC redirection. In this step, select DR_RRC_DRD_SWITCH under the Direct Retry Switch
parameter.
2. Activate the Service Steering and Load Sharing in RRC Connection Setup feature and configure related parameters.
l

RNC-level parameter configuration: Run the RNC MML command SET UREDIRECTION. In this step, set the Traffic Type and Redirection Switch parameters to appropriate
values to activate this feature for the corresponding traffic type. Set the RRC Redirection Ec/No Threshold, Redirection Factor Of Normal, Redirection Factor Of LDR,
Redirection target band indicator, Redirection Target UL Frequency Index, Redirection target uplink UARFCN, and Redirection target downlink UARFCN
parameters to appropriate values.

l

Cell-level configuration
n

For initial parameter configuration: Run the RNC MML command ADD UCELLREDIRECTION. In this step, set the Traffic Type and Redirection Switch parameters to
appropriate values to activate this feature for the corresponding traffic type. Set the RRC Redirection Ec/No Threshold, Redirection Factor Of Normal, Redirection
Factor Of LDR, Redirection target band indicator, Redirection Target UL Frequency Index, Redirection target uplink UARFCN, and Redirection target downlink
UARFCN parameters to appropriate values.

n

For reconfiguration: Run the RNC MML command MOD UCELLREDIRECTION. In this step, set the Traffic Type and Redirection Switch parameters to appropriate
values to activate this feature for the corresponding traffic type. Set the RRC Redirection Ec/No Threshold, Redirection Factor Of Normal, Redirection Factor Of
LDR, Redirection target band indicator, Redirection Target UL Frequency Index, Redirection target uplink UARFCN, and Redirection target downlink UARFCN
parameters to appropriate values.

MML Command Examples
//Activating RRC connection redirection
SET UCORRMALGOSWITCH: DrSwitch=DR_RRC_DRD_SWITCH-1;
//Activating RNC-level Service Steering and Load Sharing in RRC Connection Setup

SET UREDIRECTION: TrafficType=PSHSPA, RedirSwitch=ONLY_TO_INTER_FREQUENCY, RedirFactorOfNorm=0, RedirFactorOfLDR=50, RedirBandInd=DependOnNCell, Redir
//Activating cell-level Service Steering and Load Sharing in RRC Connection Setup for initial parameter configuration

ADD UCELLREDIRECTION: CellId=1111, TrafficType=PSHSPA, RedirSwitch=ONLY_TO_INTER_FREQUENCY, RedirFactorOfNorm=0, RedirFactorOfLDR=50, RedirBandInd=Dep
//Activating cell-level Service Steering and Load Sharing in RRC Connection Setup for parameter reconfiguration

MOD UCELLREDIRECTION: CellId=1111, TrafficType=PSHSPA, RedirSwitch=ONLY_TO_INTER_FREQUENCY, RedirFactorOfNorm=0, RedirFactorOfLDR=50, RedirBandInd=Dep

Activation (Using the CME)
NOTE:
When configuring the Service Steering and Load Sharing in RRC Connection Setup feature on the CME, perform a single configuration first, and then perform a batch modification
if required.
Configure the parameters of a single object before a batch modification. Perform a batch modification before logging out of the parameter setting interface.
1. Configure a single object (such as a cell) on the CME.
Set parameters on the CME according to the operation sequence described in Table 8-2. For instructions on how to perform the CME single configuration, see CME Single
Configuration Operation Guide.
2. (Optional) Modify objects in batches on the CME. (CME batch modification center)

To modify objects in batches, click
on the CME to start the batch modification wizard. For instructions on how to perform a batch modification through the CME batch
modification center, press F1 on the wizard interface to obtain online help.
NOTE:
l
l

Configure parameters based on the Setting Notes in Data Preparation because parameters mutually affect each other.
SN 2 is for RNC-level parameter configuration and SN 3 is for cell-level parameter configuration. If a parameter is set at both the RNC level and the cell level, the cell-level
setting takes precedence.

Table 8-2 Configuring parameters on the CME
SN

MO

1
2

3

Parameter Name

Parameter ID

Configurable in CME
Batch Modification
Center

UCORRMALGOSWITCH RNC

Direct Retry Switch

DrSwitch(BSC6900,BSC6910)

Yes

UREDIRECTION

Traffic Type

TrafficType(BSC6900,BSC6910)

Yes

Redirection Switch

RedirSwitch(BSC6900,BSC6910)

RRC Redirection Ec/No Threshold

RedirEcN0Thd(BSC6900,BSC6910)

Redirection Factor Of Normal

RedirFactorOfNorm(BSC6900,BSC6910)

Redirection Factor Of LDR

RedirFactorOfLDR(BSC6900,BSC6910)

Redirection target band indicator

RedirBandInd(BSC6900,BSC6910)

Redirection Target UL Frequency Index

ReDirUARFCNUplinkInd
(BSC6900,BSC6910)

Redirection target uplink UARFCN

ReDirUARFCNUplink(BSC6900,BSC6910)

Redirection target downlink UARFCN

ReDirUARFCNDownlink
(BSC6900,BSC6910)

Traffic Type

TrafficType(BSC6900,BSC6910)

Redirection Switch

RedirSwitch(BSC6900,BSC6910)

RRC Redirection Ec/No Threshold

RedirEcN0Thd(BSC6900,BSC6910)

Redirection Factor Of Normal

RedirFactorOfNorm(BSC6900,BSC6910)

Redirection Factor Of LDR

RedirFactorOfLDR(BSC6900,BSC6910)

Redirection target band indicator

RedirBandInd(BSC6900,BSC6910)

Redirection Target UL Frequency Index

ReDirUARFCNUplinkInd

UCELLREDIRECTION

NE

RNC

RNC

Yes

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(BSC6900,BSC6910)
Redirection target uplink UARFCN

ReDirUARFCNUplink(BSC6900,BSC6910)

Redirection target downlink UARFCN

ReDirUARFCNDownlink
(BSC6900,BSC6910)

Activation Observation
After the Service Steering and Load Sharing in RRC Connection Setup feature is activated, check the value of the VS.RRC.Rej.Redir.Service counter to determine whether this
feature is activated. If the value of this counter is not 0, this feature is activated.

Deactivation (Using MML Commands)
Perform the following operations to deactivate the Service Steering and Load Sharing in RRC Connection Setup feature:
l

RNC-level configuration
Run the RNC MML command SET UREDIRECTION and turn off the Redirection Switch.

l

Cell-level configuration
Run the RNC MML command MOD UCELLREDIRECTION and turn off the Redirection Switch.

MML Command Examples
//Deactivating RNC-level Service Steering and Load Sharing in RRC Connection Setup
SET UREDIRECTION: TrafficType=PSHSPA, RedirSwitch=OFF;
//Deactivating cell-level Service Steering and Load Sharing in RRC Connection Setup
MOD UCELLREDIRECTION: CellId=1111, TrafficType=PSHSPA, RedirSwitch=OFF;

Deactivation (Using the CME)
NOTE:
l
l

When configuring the Service Steering and Load Sharing in RRC Connection Setup feature on the CME, perform a single configuration first, and then perform a batch
modification if required.
Configure the parameters of a single object before a batch modification. Perform a batch modification before logging out of the parameter setting interface.

1. Configure a single object (such as a cell) on the CME.
Set parameters on the CME according to the operation sequence described in Table 8-3. For instructions on how to perform the CME single configuration, see CME Single
Configuration Operation Guide.
2. (Optional) Modify objects in batches on the CME. (CME batch modification center)

To modify objects in batches, click
on the CME to start the batch modification wizard. For instructions on how to perform a batch modification through the CME batch
modification center, press F1 on the wizard interface to obtain online help.
NOTE:
SN 1 is for RNC-level parameter configuration and SN 2 is for cell-level parameter configuration. If a parameter is set at both the RNC level and the cell level, the cell-level setting
takes precedence.
Table 8-3 Configuring parameters on the CME of deactivation
SN

MO

NE

Parameter Name

Parameter ID

Configurable in CME
Batch Modification Center

1

UREDIRECTION

RNC

Redirection Switch

RedirSwitch
(BSC6900,BSC6910)

Yes

2

UCELLREDIRECTION

RNC

Redirection Switch

RedirSwitch
(BSC6900,BSC6910)

Yes

8.8.5 Performance Monitoring
Check the value of the VS.RRC.Rej.Redir.Service counter to see how this feature is working. This counter indicates the number of RRC connection rejects due to service-based
RRC redirection for cell.
If cells with one frequency are enabled with this feature, this feature is functioning properly if the value of the VS.RRC.Rej.Redir.Service counter remains stable or if the value of
this counter fluctuates regularly each week.
If cells with multiple frequencies are enabled with this feature, this feature is functioning properly if the value of the VS.RRC.Rej.Redir.Service counter remains stable or if the value
of this parameter fluctuates regularly each week. If the value of the counter keeps increasing, you must check the configured redirection target frequency to prevent the ping-pong
reselection.

8.8.6 Parameter Optimization
None.

8.8.7 Troubleshooting
None.

8.9 FACH Power Control of RRC Phase
8.9.1 When to Use FACH Power Control of RRC Phase
The FACH Power Control of RRC Phase Function feature can be deployed when cells and the RRC connection setup cause in the live network meet the requirements in section
8.9.2 Required Information.

8.9.2 Required Information
l

RRC connection setup causes for enabling this function:

1. Analyze the VS.RRC.FailConnEstab.NoReply counter in the live network. The RRC connection setup cause that has the largest contribution to RRC connection setup failures
is the RRC connection setup cause for enabling this function.
2. Identify the RRC connection setup cause for which the RRC connection setup success rate needs to be improved in the live network.
l

Target cells for enabling this function:

1. Identify cells that meet the following conditions:
Most RRC connection setup failures are due to the cause indicated by the VS.RRC.FailConnEstab.NoReply counter. That is, most RRC connection setup failures are caused
by RRC connection setup timeout.

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2. Select cells where downlink weak coverage has a significant contribution to RRC connection setup failures. For example, the contribution is larger than 50%. Collect the RRC
setup success rate corresponding to the RRC connection setup cause. Examine the effect of this feature on the RRC setup success rate.
3. Select cells where RRC and RAB establishment failures are caused by downlink power resource congestion. Enable this function for these cells with caution. If the number of
RRC and RAB establishment failures caused by downlink power resource congestion is large, you are not advised to enable this function.
You can monitor the following counters to determine the number of RRC connection setup and RAB setup failures caused by downlink power resource congestion:
l

VS.RRC.Rej.DLPower.Cong

l

VS.RAB.FailEstabPS.DLPower.Cong

l

VS.RAB.FailEstabCS.DLPower.Cong

Determine whether there are signaling storms and traffic bursts during large public gatherings or festivals in the live network. If yes, you are not advised to enable this function.

8.9.3 Planning
None.

8.9.4 Deployment
Requirements
None

Data Preparation
Table 8-4 lists the data to prepare before enabling this function.
Table 8-4 Data to prepare before enabling this function
Parameter Name

Parameter ID

Setting Notes

Data Source

Timer 381

T381(BSC6900,BSC6910)

If N300(BSC6900,BSC6910) is set to 0, set this parameter to a value other than
D0 to trigger this function. (You can set this parameter to the recommended
value.)

Radio network plan (internal)

Constant 381

N381(BSC6900,BSC6910)

Set this parameter to the recommended value.

Radio network plan (internal)

Timer 300

T300(BSC6900,BSC6910)

Set this parameter to the recommended value.

Radio network plan (internal)

Constant 300

N300(BSC6900,BSC6910)

If T381(BSC6900,BSC6910) is set to D0, set this parameter to a value other
than 0 to trigger this function. (You can set this parameter to the recommended
value.)

Radio network plan (internal)

Set this parameter according to the RRC connection setup cause determined in
section 8.9.2 Required Information.

Radio network plan (internal)

Cause of RRC
RrcCause(BSC6900,BSC6910)
connection establishment
FACH Power Increase
Ec/No Threshold

FACHPower4RRCRepEcNoThd Set this parameter to the recommended value.
(BSC6900,BSC6910)

Radio network plan (internal)

Max Transmit Power of
FACH

MaxFachPower
(BSC6900,BSC6910)

Existing networks: Set this parameter to a value 2 dB higher than the original
value. Note that the value of this parameter must not be higher than 3 dB.
New networks: Set this parameter to 3 dB.

Radio network plan (internal)

Bearing Signal Indication

SIGRBIND(BSC6900,BSC6910)

If FACHs whose MaxFACHPower(BSC6900,BSC6910) is modified are used to
send signaling messages, this parameter must be set to TRUE. This parameter
must be used together with the TrChId(BSC6900,BSC6910) parameter.

Radio network plan (internal)

Cell ID

CellId(BSC6900,BSC6910)

None

Radio network plan (internal)

FACH ID

TrChId(BSC6900,BSC6910)

This parameter is used to locate the transmission channels whose SIGRBIND
(BSC6900,BSC6910) is set to TRUE and to modify the settings of
MaxFACHPower(BSC6900,BSC6910) and OffsetFACHPower
(BSC6900,BSC6910) of the FACHs corresponding to this parameter.

Radio network plan (internal)

Existing networks: Set this parameter to a value that has the same increase as
the MaxFACHPower(BSC6900,BSC6910) parameter.
New networks: Set this parameter to 2 dB.

Default value/Recommended
value

Offset between Initial and OffsetFACHPower
Max FACHPower
(BSC6900,BSC6910)

Precautions
Do not enable this function if there are signaling storms and traffic bursts in the live network.

Activation (Using MML Commands)
1. Perform either of the following operations to trigger the FACH Power Control of RRC phase function.
l

Run the RNC MML command SET UCONNMODETIMER. In this step, set Timer 381 and Constant 381 to appropriate values to trigger this function. For details about
parameter settings, see Setting Notes in Data Preparation.

l

Run the RNC MML command SET UIDLEMODETIMER. In this step, set Timer 300 and Constant 300 to appropriate values to trigger this function. For details about
parameter settings, see Setting Notes in 8.9.4 Deployment.

2. Do as follows to configure the RRC connection setup cause that requires this function and the corresponding threshold:
Run the RNC MML command SET URRCESTCAUSE. In this step, set Cause of RRC connection establishment and FACH Power Increase Ec/No Threshold to
appropriate values.
3. Modify parameters related to the FACH transmit power.
For existing cells: Run the RNC MML command MOD UFACH. In this step, set Cell ID, FACH ID, Max Transmit Power of FACH, and Offset between Initial and Max
FACHPower to appropriate values.
For new cells: Run the RNC MML command ADD UFACH. In this step, set Cell ID, FACH ID, Max Transmit Power of FACH, and Offset between Initial and Max
FACHPower to appropriate values.
NOTE:
You only need to modify the Max Transmit Power of FACH and Offset between Initial and Max FACHPower of the transmission channels whose Bearing Signal Indication is
set to TRUE. You can use FACH ID to locate these transmission channels.
Before running the RNC MML command MOD UFACH, run the RNC MML command LST UFACH to list the transmission channels whose Bearing Signal Indication is set to
TRUE.

MML Command Examples
//Enabling the FACH power control of RRC phase function

SET UCONNMODETIMER: T381=D600, N381=D1;
SET URRCESTCAUSE: RrcCause=ORIGCONVCALLEST, FACHPower4RRCRepEcNoThd=-13;
ADD UFACH:CELLID=1111, TRCHID=4, PHYCHID=8, TTI=T10, RATEMATCHINGATTR=220, MAXCMCHPI=D15, MINCMCHPI=D14, SIGRBIND=TRUE, CHCODINGTYPE=CONVOLUTIONAL, CO

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MOD UFACH: CellId=1111, TrChId=4, MaxFachPower=10, OffsetFACHPower=0;

Activation (Using the CME)
NOTE:
l
l

When configuring the FACH power control of RRC phase function on the CME, perform a single configuration first, and then perform a batch modification if required.
Configure the parameters of a single object before a batch modification. Perform a batch modification before logging out of the parameter setting interface.

1. Configure a single object (such as a cell) on the CME.
Set parameters on the CME according to the operation sequence described in Table 8-6. For instructions on how to perform the CME single configuration, see CME Single
Configuration Operation Guide.
2. (Optional) Modify objects in batches on the CME. (CME batch modification center)

To modify objects in batches, click
on the CME to start the batch modification wizard. For instructions on how to perform a batch modification through the CME batch
modification center, press F1 on the wizard interface to obtain online help.
NOTE:
l
l

You can perform either of the two operations in SN 1 to trigger this function.
In SN 3, you only need to modify the Max Transmit Power of FACH and Offset between Initial and Max FACHPower of the transmission channels whose Bearing Signal
Indication is set to TRUE. You can use FACH ID to locate these transmission channels. Before performing SN 3, query the transmission channels whose Bearing Signal
Indication is set to TRUE.

Table 8-5 Configuring parameters on the CME
SN

MO

NE

Parameter Name

Parameter ID

Configurable in CME
Batch Modification
Center

1

UCONNMODETIMER

RNC

Timer 381

T381(BSC6900,BSC6910)

Yes

Constant 381

N381(BSC6900,BSC6910)

Timer 300

T300(BSC6900,BSC6910)

Constant 300

N300(BSC6900,BSC6910)

UIDLEMODETIMER

2

URRCESTCAUSE

3

UFACH

RNC

RNC

RNC

Cause of RRC connection establishment RrcCause(BSC6900,BSC6910)
FACH Power Increase Ec/No Threshold

FACHPower4RRCRepEcNoThd
(BSC6900,BSC6910)

Cell ID

CellId(BSC6900,BSC6910)

FACH ID

TrChId(BSC6900,BSC6910)

Max Transmit Power of FACH

MaxFachPower(BSC6900,BSC6910)

Offset between Initial and Max
FACHPower

OffsetFACHPower
(BSC6900,BSC6910)

Yes

Yes

No

Activation Observation
Observe the cell tracing results on the RNC LMT.
l

If Transmit Power Level in the FACH FP packet is 0, this feature is enabled. If Transmit Power Level in the FACH FP packet is the value of the Offset between Initial and
Max FACHPower parameter, this feature is not enabled.
Figure 8-3 Transmit Power Level in the FACH FP packet

NOTE:
This function cannot be triggered if the traced cell is in the OLC state.
Perform the following steps to trace the signaling messages of a cell:
1. Run the RNC MML command LST USCCPCH to set Cell ID and obtain the number of SCCPCHs and SCCPCH ID configured for a cell.
2. Run the RNC MML command LST USCCPCH to set Cell ID and obtain the SCCPCH ID of a transmission channel whose Bearing Signal Indication is set to TRUE.
3. Start a tracing task (Debug Mode) on the Cell Trace interface of the LMT.
4. On the FMR tab page of the Cell Trace dialog box, select Layer 2 data transfer Periodic Report and CCH Data Report and specify Report Period(100ms) and SCCPCH
ID 1. The configuration requirements are as follows:
l

It is recommended that Report Period(100ms) be set to 20.

l

If there is only one SCCPCH, enter the corresponding SCCPCH ID for SCCPCH ID 1.

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If there are two SCCPCHs, the SCCPCH ID for SCCPCH ID 1 must be the SCCPCH ID of the transmission channel whose Bearing Signal Indication is set to TRUE.

5. Start cell tracing.

Deactivation (Using MML Commands)
Perform the following operations to disable the FACH power control of RRC phase function:
l

RNC-level configuration
Run the RNC MML command SET URRCESTCAUSE with FACH Power Increase Ec/No Threshold set to –24.

l

Cell-level configuration
Run the RNC MML command MOD UFACH. In this step, set Cell ID, FACH ID, Max Transmit Power of FACH, and Offset between Initial and Max FACHPower to
appropriate values. Change Max Transmit Power of FACH and Offset between Initial and Max FACHPower to the original values.

MML Command Examples
//Disabling the FACH power control of RRC phase function
SET URRCESTCAUSE: RrcCause=ORIGCONVCALLEST, FACHPower4RRCRepEcNoThd=-24;

Deactivation (Using the CME)
NOTE:
l
l

When configuring the FACH power control of RRC phase function on the CME, perform a single configuration first, and then perform a batch modification if required.
Configure the parameters of a single object before a batch modification. Perform a batch modification before logging out of the parameter setting interface.

1. Configure a single object (such as a cell) on the CME.
Set parameters on the CME according to the operation sequence described in Table 8-6. For instructions on how to perform the CME single configuration, see CME Single
Configuration Operation Guide.
2. (Optional) Modify objects in batches on the CME. (CME batch modification center)

To modify objects in batches, click
on the CME to start the batch modification wizard. For instructions on how to perform a batch modification through the CME batch
modification center, press F1 on the wizard interface to obtain online help.
----End
NOTE:
In SN 2, set Max Transmit Power of FACH and Offset between Initial and Max FACHPower to the values before feature activation.
Table 8-6 Configuring parameters on the CME for deactivation
SN

MO

NE

Parameter Name

Parameter ID

Configurable in
CME Batch
Modification
Center

1

URRCESTCAUSE

RNC

FACH Power Increase Ec/No Threshold

FACHPower4RRCRepEcNoThd
(BSC6900,BSC6910)

Yes

Cell ID

CellId(BSC6900,BSC6910)

No

FACH ID

TrChId(BSC6900,BSC6910)

Max Transmit Power of FACH

MaxFachPower(BSC6900,BSC6910)

Offset between Initial and Max FACHPower

OffsetFACHPower(BSC6900,BSC6910)

NOTE:
Set this parameter to –24.
2

UFACH

RNC

8.9.5 Performance Monitoring
Perform the following steps to monitor the performance of this function:
1. Query the RRC connection setup success rate corresponding to the RRC connection setup cause.
Check whether the RRC connection setup success rate increases after this function is enabled. Use the following formula to calculate the RRC connection setup success
rate:
RRC connection setup success rate = (Number of successful RRC connection setups/RRC connection setup requests) * 100%
If the RRC connection setup success rate decreases after the enabling of this function, downlink power resources in a cell may be congested. In this situation, roll back the
settings of the MaxFACHPower(BSC6900,BSC6910) and OffsetFACHPower(BSC6900,BSC6910) parameters to disable this function for the cell.
Table 8-7 lists counters related to the number of RRC connection setup requests corresponding to different RRC connection setup causes.
Table 8-7 Counters related to the number of RRC connection setup requests
Counter ID

Counter Name

Description

67179329

RRC.AttConnEstab.OrgConvCall

Number of RRC Connection Requests for Cell (Originating Conversational Call)

67179330

RRC.AttConnEstab.OrgStrCall

Number of RRC Connection Requests for Cell (Originating Streaming Call)

67179331

RRC.AttConnEstab.OrgInterCall

Number of RRC Connection Requests for Cell (Originating Interactive Call)

67179332

RRC.AttConnEstab.OrgBkgCall

Number of RRC Connection Requests for Cell (Originating Background Call)

67179334

RRC.AttConnEstab.TmConvCall

Number of RRC Connection Requests for Cell (Terminating Conversational Call)

67179335

RRC.AttConnEstab.TmStrCall

Number of RRC Connection Requests for Cell (Terminating Streaming Call)

67179336

RRC.AttConnEstab.TmInterCall

Number of RRC Connection Requests for Cell (Terminating Interactive Call)

67179337

RRC.AttConnEstab.TmBkgCall

Number of RRC Connection Requests for Cell (Terminating Background Call)

67179333

RRC.AttConnEstab.OrgSubCall

Number of RRC Connection Requests for Cell (Originating Subscribed Traffic Call)

67179338

RRC.AttConnEstab.EmgCall

Number of RRC Connection Requests for Cell (Emergency Call)

67179339

RRC.AttConnEstab.IRATCelRes

Number of RRC Connection Requests for Cell (Inter-RAT Cell Re-Selection)

67179340

RRC.AttConnEstab.IRATCCO

Number of RRC Connection Requests for Cell (Inter-RAT Cell Change Order)

67179341

RRC.AttConnEstab.Reg

Number of RRC Connection Requests for Cell (Registration)

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67179342

RRC.AttConnEstab.Detach

Number of RRC Connection Requests for Cell (Detach)

67179343

RRC.AttConnEstab.OrgHhPrSig

Number of RRC Connection Requests for Cell (Originating High Priority Signaling)

67179344

RRC.AttConnEstab.OrgLwPrSig

Number of RRC Connection Requests for Cell (Originating Low Priority Signaling)

67179345

RRC.AttConnEstab.CallReEst

Number of RRC Connection Requests for Cell (Call Re-Establishment)

67179346

RRC.AttConnEstab.TmHhPrSig

Number of RRC Connection Requests for Cell (Terminating High Priority Signaling)

67179347

RRC.AttConnEstab.TmLwPrSig

Number of RRC Connection Requests for Cell (Terminating Low Priority Signaling)

67179348

RRC.AttConnEstab.Unknown

Number of RRC Connection Requests for Cell (Terminating-Cause Unknown)

67195964

RRC.AttConnEstab.MBMSRep

Number of RRC Connection Requests for Cell (MBMS Reception)

67195965

RRC.AttConnEstab.MBMSPtp

Number of RRC Connection Requests for Cell (MBMS Reception)

Table 8-8 lists counters related to the number of successful RRC connection setups corresponding to different RRC connection setup causes.
Table 8-8 Counters related to the number of successful RRC connection setups
Counter ID

Counter Name

Description

67179457

RRC.SuccConnEstab.OrgConvCall

Number of Successful RRC Connection Setups for Cell (Originating Conversational Call)

67179458

RRC.SuccConnEstab.OrgStrCall

Number of Successful RRC Connection Setups for Cell (Originating Streaming Call)

67179459

RRC.SuccConnEstab.OrgInterCall

Number of Successful RRC Connection Setups for Cell (Originating Interactive Call)

67179460

RRC.SuccConnEstab.OrgBkgCall

Number of Successful RRC Connection Setups for Cell (Originating Background Call)

67179461

RRC.SuccConnEstab.OrgSubCall

Number of Successful RRC Connection Setups for Cell (Originating Subscribed traffic Call)

67179462

RRC.SuccConnEstab.TmConvCall

Number of Successful RRC Connection Setups for Cell (Terminating Conversational Call)

67179463

RRC.SuccConnEstab.TmStrCall

Number of Successful RRC Connection Setups for Cell (Terminating Streaming Call)

67179464

RRC.SuccConnEstab.TmItrCall

Number of Successful RRC Connection Setups for Cell (Terminating Interactive Call)

67179465

RRC.SuccConnEstab.TmBkgCall

Number of Successful RRC Connection Setups for Cell (Terminating Background Call)

67179467

RRC.SuccConnEstab.IRATCelRes

Number of Successful RRC Connection Setups for Cell (Inter-RAT cell re-selection)

67179468

RRC.SuccConnEstab.IRATCCO

Number of Successful RRC Connection Setups for Cell (Inter-RAT cell change order)

67179469

RRC.SuccConnEstab.Reg

Number of Successful RRC Connection Setups for Cell (Registration)

67179470

RRC.SuccConnEstab.Detach

Number of Successful RRC Connection Setups for Cell (Detach)

67179471

RRC.SuccConnEstab.OrgHhPrSig

Number of Successful RRC Connection Setups for Cell (Originating High Priority Signaling)

67179472

RRC.SuccConnEstab.OrgLwPrSig

Number of Successful RRC Connection Setups for Cell (Originating Low Priority Signaling)

67179473

RRC.SuccConnEstab.CallReEst

Number of Successful RRC Connection Setups for Cell (Call re-establishment)

67179474

RRC.SuccConnEstab.TmHhPrSig

Number of Successful RRC Connection Setups for Cell (Terminating High Priority Signaling)

67179475

RRC.SuccConnEstab.TmLwPrSig

Number of Successful RRC Connection Setups for Cell (Terminating Low Priority Signaling)

67179476

RRC.SuccConnEstab.Unkown

Number of Successful RRC Connection Setups for Cell (Terminating - cause unknown)

67179466

RRC.SuccConnEstab.EmgCall

Number of Successful RRC Connection Setups for Cell (Emergency Call)

67195966

RRC.SuccConnEstab.MBMSRep

Number of Successful RRC Connection Setups for Cell (MBMS Reception)

67195967

RRC.SuccConnEstab.MBMSPtp

Number of Successful RRC Connection Setups for Cell (MBMS PTP RB Request)

2. Monitor downlink power congestion for cells.
Check whether the values of the VS.RRC.Rej.DLPower.Cong and VS.RAB.FailEstabPS.DLPower.Cong counters increase after the enabling of this function. If downlink
power resources are congested in a cell, roll back the settings of the MaxFACHPower(BSC6900,BSC6910) and OffsetFACHPower(BSC6900,BSC6910) parameters to
disable this function for the cell.
3. Query the RAB connection setup success rate.
If the RAB connection setup success rate corresponding to the RRC connection setup cause decreases, collect the Ec/N0 distribution of the RACH for services that
experience RAB connection setup failures during the RRC connection setup procedure. Then compare the Ec/N0 distribution with the value of the
FACHPower4RRCRepEcNoThd(BSC6900,BSC6910) parameter. Calculate the number of times the Ec/N0 of the RACH is smaller than the value of this parameter.
Compare the calculated result with the increased successful RRC connection setups. If the two numbers are almost the same, the performance of this function is as
expected. The reason for comparing the two numbers is that although RRC connection setups for UEs in weak coverage areas may succeed, RAB connection setups may
still fail.
4. Query the call drop rate in the live network.
The call drop rate is calculated as follows:
CS service drop ratio (cell) =
[VS.RAB.AbnormRel.CS/(VS.RAB.AbnormRel.CS + VS.RAB.NormRel.CS)]*100%
PS call drop ratio (cell) =
[VS.RAB.AbnormRel.PS/(VS.RAB.AbnormRel.PS + VS.RAB.NormRel.PS)]*100%
If the call drop rate deteriorates, you can adjust the power increase for the MaxFACHPower(BSC6900,BSC6910) parameter to reduce the maximum FACH transmit power.

8.9.6 Parameter Optimization
For parameter optimization of this function, see section 8.9.5 Performance Monitoring.

8.9.7 Troubleshooting
None.

8.10 WRFD-020104 Intra Frequency Load Balance
8.10.1 When to Use Intra Frequency Load Balance
None

8.10.2 Required Information
None

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8.10.3 Deployment
Requirements
None

Data Preparation
None

Activation
1. Run the RNC MML command ADD UINTRAFREQNCELL (CME single configuration: UMTS Cell Configuration Express > Neighboring Cell > Intra-frequency
Neighboring Cell; CME batch modification center: not supported) to add an intra-frequency neighboring cell.
2. Run the RNC MML command MOD UCELLALGOSWITCH (CME single configuration: UMTS Cell Configuration Express > Cell Parameters > Cell Algorithm Switches;
CME batch modification center: Modifying UMTS Cell Parameters in Batches). In this step, select INTRA_FREQUENCY_LDB(Intra Frequency LDB Algorithm) from the
Cell LDC algorithm switch drop-down list.
3. Run the RNC MML command SET ULDCPERIOD (CME single configuration: UMTS Radio Global Configuration Express > Load Control Parameter Configuration >
RNC Oriented LDC Algorithm Cycle Length; CME batch modification center: Modifying RNC Parameters in Batches). In this step, set Intra-frequency LDB period timer
length to an appropriate value.
4. Run the RNC MML command MOD UCELLLDB (CME single configuration: UMTS Cell Configuration Express > Cell Parameters > Cell Oriented LDB Algorithm
Parameters; CME batch modification center: Modifying UMTS Cell Parameters in Batches) to set the following parameters associated with the cell-level intra-frequency load
balancing (LDB) algorithm to appropriate values:
l

Cell overload threshold

l

Pilot power adjustment step

l

Cell under load threshold

5. Run the RNC MML command MOD UPCPICHPWR (CME single configuration: UMTS Cell Configuration Express > Channel Configuration > PCPICH; CME batch
modification center: Modifying UMTS Channel Parameters in Batches). In this step, set P-CPICH parameters associated with intra-frequency LDB, including Max transmit
power of PCPICH and Min transmit power of PCPICH to appropriate values.

Activation Observation
To verify that the RNC can balance the cell load by adjusting the P-CPICH power of a cell, perform the following steps:
1. On the RNC LMT, open the Monitor tab page. Create a task of monitoring PCPICH TxPower of CELL_A11.
2. Run the NodeB MML command STR DLSIM to simulate high load in CELL_A11.
3. In the Cell Performance Monitoring dialog box, check the pilot power of CELL_A11.
Expected result: As the cell load increases, the pilot power periodically decreases. The actual pilot power does not decrease to a level lower than the configured minimum
pilot power.
4. The NBAP_CELL_RECFG_REQ and NBAP_CELL_RECFG_RSP messages should be displayed in the Iub tracing result. In the NBAP_CELL_RECFG_REQ message,
check whether the RNC has reduced the pilot power.
5. Run the NodeB MML command STR DLSIM to clear the simulated high load in CELL_A11.
6. In the Cell Performance Monitoring dialog box, check the pilot power of CELL_A11.
Expected result: As the cell load becomes normal, the pilot power periodically increases. The actual pilot power does not increase to a level higher than the configured
maximum pilot power.

Deactivation
1. Run the RNC MML command MOD UCELLALGOSWITCH (CME single configuration: UMTS Cell Configuration Express > Cell Parameters > Cell Algorithm Switches;
CME batch modification center: Modifying UMTS Cell Parameters in Batches). In this step, clear INTRA_FREQUENCY_LDB from the Cell LDC algorithm switch drop-down
list.
2. Restore the parameter settings modified in the activation procedure.

MML Command Examples
//Activating Intra Frequency Load Balance
//Configuring intra-frequency neighboring cells
ADD UINTRAFREQNCELL: RncId=1, CellId=111, NCellRncId=1, NCellId=211, SIB11Ind=TRUE, SIB12Ind=FALSE, TpenaltyHcsReselect=D0, NPrioFlag=FALSE;
//Enabling the cell-oriented intra-frequency LDB algorithm
MOD UCELLALGOSWITCH: CellId=111, NBMLdcAlgoSwitch=INTRA_FREQUENCY_LDB-1;
//Setting the intra-frequency LDB period
SET ULDCPERIOD: IntraFreqLdbPeriodTimerLen=1800;
//Setting parameters associated with the cell-oriented intra-frequency LDB algorithm to appropriate values
MOD UCELLLDB: CellId=111, PCPICHPowerPace=2, CellOverrunThd=90, CellUnderrunThd=30;
//Setting the P-CPICH associated parameters for intra-frequency LDB
MOD UPCPICHPWR: CellId=111, MaxPCPICHPower=346, MinPCPICHPower=313;
//Verifying Intra Frequency Load Balance
STR DLSIM: LOCELL=111, LR=90;
STP DLSIM: LOCELL=111;
//Deactivating Intra Frequency Load Balance
MOD UCELLALGOSWITCH: CellId=111, NBMLdcAlgoSwitch=INTRA_FREQUENCY_LDB-0;

8.11 WRFD-010505 Queuing and Preemption
8.11.1 When to Use Queuing and Preemption
None

8.11.2 Required Information
None

8.11.3 Deployment
Requirements
l

Hardware
n

To enable the common preemption function, the CN must send the allocation/retention priority (ARP) IE to the RNC during the RAB assignment procedure so that the
RNC can obtain RAB service priorities.

n

The forced preemption function does not depend on the CN.

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l

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Other features
The following features must be configured before this feature is activated:
- WRFD-010610 HSDPA Introduction Package
- WRFD-010612 HSUPA Introduction Package.

l

License
The license "Queuing and Pre-emption" on the RNC side has been activated. For details about the license and how to activate the license, see License Management Feature
Parameter Description.

Data Preparation
None

Activation (Using MML Commands)
1. Run the RNC MML command SET UQUEUEPREEMPT. In this step, set Preempt algorithm switch to ON to enable the preemption function; set Queue algorithm switch
to ON to enable the queuing function.
2. Run the RNC MML command SET UQUEUEPREEMPT. In this step, select PREEMPT_ENH_NODEB_PREEMPT_CE_SWITCH under the Preemption Enhancement
Switch parameter to enable the CE resource preemption enhancement function.
3. (Optional) To enable the forced preemption function, run the RNC MML command SET UQUEUEPREEMPT. In this step, select
PREEMPT_ENH_CSRRC_PREEMPT_PS_SWITCH and PREEMPT_ENH_CSRAB_PREEMPT_PS_SWITCH under the Preemption Enhancement Switch parameter.
NOTE:
If step 3 is performed, the preemption function enabled in step 1 will become invalid and the forced preemption function will take effect.
----End

MML Command Examples
//Activating Queuing and Preemption

SET UQUEUEPREEMPT: PreemptAlgoSwitch=ON, QueueAlgoSwitch=ON, PreemptEnhSwitch=PREEMPT_ENH_NODEB_PREEMPT_CE_SWITCH-1&PREEMPT_ENH_CSRRC_PREEMPT_PS_SWITC

Activation (Using the CME)
NOTE:
l
l

When configuring the Queuing and Preemption feature on the CME, perform a single configuration first, and then perform a batch modification if required.
Configure the parameters of a single object before a batch modification. Perform a batch modification before logging out of the parameter setting interface.

1. Configure a single object (such as a cell) on the CME. Set the parameter described in Table 8-9. For instructions on how to perform the CME single configuration, see CME
Single Configuration Operation Guide.
2. (Optional) Modify objects in batches on the CME. (CME batch modification center)

To modify objects in batches, click
on the CME to start the batch modification wizard. For instructions on how to perform a batch modification through the CME batch
modification center, press F1 on the wizard interface to obtain online help.
NOTE:
If the forced preemption function is enabled, the preemption function enabled by setting the Preempt algorithm switch parameter will become invalid.
Table 8-9 Configuring the parameter on the CME
SN

MO

NE

Parameter Name

Parameter ID

Configurable in
CME Batch
Modification
Center

1

UQUEUEPREEMPT

RNC

Preempt algorithm switch

PreemptAlgoSwitch
(BSC6900,BSC6910)

Yes

NOTE:
Set this parameter to ON.
Queue algorithm switch
NOTE:

QueueAlgoSwitch
(BSC6900,BSC6910)

Set this parameter to ON.
Preemption Enhancement Switch
NOTE:

PreemptEnhSwitch
(BSC6900,BSC6910)

Set this parameter as follows:
l
l

Select PREEMPT_ENH_NODEB_PREEMPT_CE_SWITCH to enable the
CE resource preemption function.
(Optional) Select PREEMPT_ENH_CSRRC_PREEMPT_PS_SWITCH and
PREEMPT_ENH_CSRAB_PREEMPT_PS_SWITCH to enable the forced
preemption function.

Activation Observation
The queuing function is enabled if the value of any of the following counters is not 0.
l

VS.RAB.Estab.QueueTime.CS

l

VS.RAB.Estab.QueueTime.PS

The preemption function is enabled if the value of any of the following counters is not 0.
l

VS.RAB.AbnormRel.CS.Preempt

l

VS.RAB.AbnormRel.PS.Preempt

l

RRC.AttConnRelDCCH.Preempt

l

RRC.AttConnRelCCCH.Preempt

Deactivation (Using MML Commands)
1. Run the RNC MML command SET UQUEUEPREEMPT. In this step, set Preempt algorithm switch to OFF to disable the preemption function; set Queue algorithm switch
to OFF to disable the queuing function.

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2. Run the RNC MML command SET UQUEUEPREEMPT. In this step, clear PREEMPT_ENH_NODEB_PREEMPT_CE_SWITCH under the Preemption Enhancement
Switch parameter to disable the CE resource preemption enhancement function.
3. (Optional) To disable the forced preemption function, run the RNC MML command SET UQUEUEPREEMPT. In this step, clear
PREEMPT_ENH_CSRRC_PREEMPT_PS_SWITCH and PREEMPT_ENH_CSRAB_PREEMPT_PS_SWITCH under the Preemption Enhancement Switch parameter.
----End

MML Command Examples
//Deactivating Queuing and Preemption

SET UQUEUEPREEMPT: PreemptAlgoSwitch=OFF, QueueAlgoSwitch=OFF, PreemptEnhSwitch=PREEMPT_ENH_NODEB_PREEMPT_CE_SWITCH-0&PREEMPT_ENH_CSRRC_PREEMPT_PS_SWI

Deactivation (Using the CME)
NOTE:
l
l

When configuring the Queuing and Preemption feature on the CME, perform a single configuration first, and then perform a batch modification if required.
Configure the parameters of a single object before a batch modification. Perform a batch modification before logging out of the parameter setting interface.

1. Configure a single object (such as a cell) on the CME.
Set parameters on the CME according to the operation sequence described in Table 8-10. For instructions on how to perform the CME single configuration, see CME Single
Configuration Operation Guide.
2. (Optional) Modify objects in batches on the CME. (CME batch modification center)

To modify objects in batches, click
on the CME to start the batch modification wizard. For instructions on how to perform a batch modification through the CME batch
modification center, press F1 on the wizard interface to obtain online help.
Table 8-10 Configuring parameters on the CME
SN

MO

NE

1

UQUEUEPREEMPT RNC

Parameter Name

Parameter ID

Configurable in
CME Batch
Modification
Center

Preempt algorithm switch

PreemptAlgoSwitch
(BSC6900,BSC6910)

Yes

NOTE:
Set this parameter to OFF.
Queue algorithm switch
NOTE:

QueueAlgoSwitch
(BSC6900,BSC6910)

Set this parameter to OFF.
Preemption Enhancement Switch
NOTE:

PreemptEnhSwitch
(BSC6900,BSC6910)

Set this parameter as follows:
l
l

Clear PREEMPT_ENH_NODEB_PREEMPT_CE_SWITCH to disable the
CE resource preemption function.
(Optional) Clear PREEMPT_ENH_CSRRC_PREEMPT_PS_SWITCH and
PREEMPT_ENH_CSRAB_PREEMPT_PS_SWITCH to disable the forced
preemption function.

8.12 WRFD-010507 Rate Negotiation at Admission Control
8.12.1 When to Use Rate Negotiation at Admission Control
None

8.12.2 Required Information
None

8.12.3 Deployment
Requirements
l

Hardware
This feature does not have special hardware requirements.

l

Other features
This feature does not depend on other features.

l

License
The license "RAB Downsizing at Admission Control" on the RNC side has been activated. For details about the license and how to activate the license, see License
Management Feature Parameter Description.

l

Other prerequisites
n

To implement Iu QoS negotiation, the CN nodes must support this feature.

n

To implement RAB rate reduction, the CN nodes do not need to support this feature.

Data Preparation
None

Activation
l

Activating QoS negotiation

1. Run the RNC MML command SET UCORRMALGOSWITCH (CME single configuration: UMTS Radio Global Configuration Express > Connection_Oriented RRM
Switch Configuration > Connection Oriented Algorithm Switches; CME batch modification center: Modifying RNC Parameters in Batches). In this step, set Dynamic
Resource Allocation Switch to DRA_DCCC_SWITCH, and set PS rate negotiation switch to PS_BE_IU_QOS_NEG_SWITCH and
PS_STREAM_IU_QOS_NEG_SWITCH.
l

Activating RAB rate reduction

1. Run the RNC MML command SET UCORRMALGOSWITCH (CME single configuration: UMTS Radio Global Configuration Express > Connection_Oriented RRM
Switch Configuration > Connection Oriented Algorithm Switches; CME batch modification center: Modifying RNC Parameters in Batches). In this step, set Dynamic
Resource Allocation Switch to DRA_DCCC_SWITCH, and set PS rate negotiation switch to PS_RAB_DOWNSIZING_SWITCH.

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Activation Observation
l

Verifying QoS negotiation

1. Run the RNC MML command LST UCORRMALGOSWITCH to query the activation result.
2. Start Iu message tracing on the RNC LMT and establish a PS service, as shown in Figure 8-4.
Figure 8-4 Iu message tracing

3. View the RANAP_RAB_ASSIGNMENT_REQ message. If it contains the IE "alt-RAB-Parameters", the CN supports Iu QoS negotiation, as shown in Figure 8-5
Figure 8-5 RANAP_RAB_ASSIGNMENT_REQ message on the Iu interface

l

Verifying RAB rate reduction

1. Run the RNC MML command LST UCORRMALGOSWITCH to view the activation result.
2. Start Iu message tracing on the RNC LMT and establish a PS service, as shown in Figure 8-6.
Figure 8-6 Iu message tracing

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3. View the RANAP_RAB_ASSIGNMENT_RESP message. If it contains the IE "ass-RAB-Parameters", rate negotiation at admission control takes effect, and the MaxBitrate is
the data rate negotiated by the RNC, as shown in Figure 8-7.
Figure 8-7 RANAP_RAB_ASSIGNMENT_RESP message on the Iu interface

Deactivation
l

Deactivating QoS negotiation

1. Run the RNC MML command SET UCORRMALGOSWITCH (CME single configuration: UMTS Radio Global Configuration Express > Connection_Oriented RRM
Switch Configuration > Connection Oriented Algorithm Switches; CME batch modification center: Modifying RNC Parameters in Batches). In this step, clear
DRA_DCCC_SWITCH from the Dynamic Resource Allocation Switch drop-down list box, and clear PS_BE_IU_QOS_NEG_SWITCH and
PS_STREAM_IU_QOS_NEG_SWITCH from the PS rate negotiation switch drop-down list box.
l

Deactivating RAB rate reduction

2. Run the RNC MML command SET UCORRMALGOSWITCH (CME single configuration: UMTS Radio Global Configuration Express > Connection_Oriented RRM
Switch Configuration > Connection Oriented Algorithm Switches; CME batch modification center: Modifying RNC Parameters in Batches). In this step, clear
DRA_DCCC_SWITCH from the Dynamic Resource Allocation Switch drop-down list box, and clear PS_RAB_DOWNSIZING_SWITCH from the PS rate negotiation
switch drop-down list box.

MML Command Examples
//Activating Rate Negotiation at Admission Control
SET UCORRMALGOSWITCH: DraSwitch=DRA_HSUPA_DCCC_SWITCH-1, PsSwitch =PS_BE_IU_QOS_NEG_SWITCH-1&PS_STREAM_IU_QOS_NEG_SWITCH-1;
SET UCORRMALGOSWITCH: DraSwitch=DRA_HSUPA_DCCC_SWITCH-1, PsSwitch=PS_RAB_DOWNSIZING_SWITCH-1;
//Deactivating Rate Negotiation at Admission Control
SET UCORRMALGOSWITCH: DraSwitch=DRA_HSUPA_DCCC_SWITCH-0, PsSwitch =PS_BE_IU_QOS_NEG_SWITCH-0&PS_STREAM_IU_QOS_NEG_SWITCH-0;
SET UCORRMALGOSWITCH: DraSwitch=DRA_HSUPA_DCCC_SWITCH-0, PsSwitch=PS_RAB_DOWNSIZING_SWITCH-0;

9 Parameters
Table 9-1 Parameter description
Parameter ID

NE

MML Command

RedirEcN0Thd

BSC6900 ADD UCELLREDIRECTION
MOD UCELLREDIRECTION

Feature
ID

Feature Name

Description

WRFD02040003
WRFD020120

Inter System Redirect
Service Steering and
Load Sharing in RRC
Connection Setup

Meaning:When the target UARFCN of redirection indicates a
specific frequency band and the Ec/N0 value of the current cell
carried in the RRC Connection Request message is smaller than
the value of this parameter, service-based RRC redirection is
forbidden. For details, see 3GPP TS 25.215.
GUI Value Range:-24~0
Unit:dB

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Actual Value Range:-24~0
Default Value:-24
RedirEcN0Thd

BSC6910 ADD UCELLREDIRECTION
MOD UCELLREDIRECTION

WRFD02040003
WRFD020120

Inter System Redirect
Service Steering and
Load Sharing in RRC
Connection Setup

Meaning:When the target UARFCN of redirection indicates a
specific frequency band and the Ec/N0 value of the current cell
carried in the RRC Connection Request message is smaller than
the value of this parameter, service-based RRC redirection is
forbidden. For details, see 3GPP TS 25.215.
GUI Value Range:-24~0
Unit:dB
Actual Value Range:-24~0
Default Value:-24

T381

BSC6900 SET UCONNMODETIMER

WRFD010101

3GPP R9
Specifications

Meaning:T381 is started after the RNC send message "RRC
CONNECTION SETUP"(or "CELL UPDATE CONFIRM"). If
T381 expire and RNC does not receive "RRC CONNECTION
SETUP COMPLETE"(or the response of "CELL UPDATE
CONFIRM") and V381 is smaller than N381, RNC resend "RRC
CONNECTION SETUP"(or "CELL UPDATE CONFIRM") and
restart timer T381 and increase V381. If RNC receive "RRC
CONNECTION SETUP COMPLETE"(or the response of "CELL
UPDATE CONFIRM"), T381 will be stopped. Default value is
600ms.
GUI Value Range:D0, D100, D200, D300, D400, D500, D600,
D700, D800, D900, D1000, D1200, D1500, D2000
Unit:ms
Actual Value Range:0, 100, 200, 300, 400, 500, 600, 700, 800,
900, 1000, 1200, 1500, 2000
Default Value:D600

T381

BSC6910 SET UCONNMODETIMER

WRFD010101

3GPP R9
Specifications

Meaning:T381 is started after the RNC send message "RRC
CONNECTION SETUP"(or "CELL UPDATE CONFIRM"). If
T381 expire and RNC does not receive "RRC CONNECTION
SETUP COMPLETE"(or the response of "CELL UPDATE
CONFIRM") and V381 is smaller than N381, RNC resend "RRC
CONNECTION SETUP"(or "CELL UPDATE CONFIRM") and
restart timer T381 and increase V381. If RNC receive "RRC
CONNECTION SETUP COMPLETE"(or the response of "CELL
UPDATE CONFIRM"), T381 will be stopped. Default value is
600ms.
GUI Value Range:D0, D100, D200, D300, D400, D500, D600,
D700, D800, D900, D1000, D1200, D1500, D2000
Unit:ms
Actual Value Range:0, 100, 200, 300, 400, 500, 600, 700, 800,
900, 1000, 1200, 1500, 2000
Default Value:D600

N381

BSC6900 SET UCONNMODETIMER

WRFD010101

3GPP R9
Specifications

Meaning:Maximum number of resend times of message "RRC
CONNECTION SETUP" or "CELL UPDATE CONFIRM". default
value is 1.
GUI Value Range:D1, D2, D3, D4
Unit:None
Actual Value Range:1, 2, 3, 4
Default Value:D1

N381

BSC6910 SET UCONNMODETIMER

WRFD010101

3GPP R9
Specifications

Meaning:Maximum number of resend times of message "RRC
CONNECTION SETUP" or "CELL UPDATE CONFIRM". default
value is 1.
GUI Value Range:D1, D2, D3, D4
Unit:None
Actual Value Range:1, 2, 3, 4
Default Value:D1

T300

BSC6900 SET UIDLEMODETIMER

WRFD010101

3GPP R9
Specifications

Meaning:Timer 300. T300 starts when a UE sends an RRC
CONNECTION REQUEST message and stops when the UE
receives an RRC CONNECTION SETUP message. When T300
expires, the UE resends an RRC CONNECTION REQUEST
message if the value of the counter V300 is smaller than or
equal to that of the parameter N300. If the value of V300 is
larger than that of N300 when T300 expires, the UE enters the
idle mode. The value of this parameter is contained in SIB1
messages.
GUI Value Range:D100, D200, D400, D600, D800, D1000,
D1200, D1400, D1600, D1800, D2000, D3000, D4000, D6000,
D8000
Unit:ms
Actual Value Range:100, 200, 400, 600, 800, 1000, 1200, 1400,
1600, 1800, 2000, 3000, 4000, 6000, 8000
Default Value:D2000

T300

BSC6910 SET UIDLEMODETIMER

WRFD010101

3GPP R9
Specifications

Meaning:Timer 300. T300 starts when a UE sends an RRC
CONNECTION REQUEST message and stops when the UE
receives an RRC CONNECTION SETUP message. When T300
expires, the UE resends an RRC CONNECTION REQUEST
message if the value of the counter V300 is smaller than or
equal to that of the parameter N300. If the value of V300 is
larger than that of N300 when T300 expires, the UE enters the
idle mode. The value of this parameter is contained in SIB1
messages.
GUI Value Range:D100, D200, D400, D600, D800, D1000,
D1200, D1400, D1600, D1800, D2000, D3000, D4000, D6000,
D8000
Unit:ms
Actual Value Range:100, 200, 400, 600, 800, 1000, 1200, 1400,
1600, 1800, 2000, 3000, 4000, 6000, 8000
Default Value:D2000

RrcCause

BSC6900 SET URRCESTCAUSE

WRFD010510

3.4/6.8/13.6/27.2Kbps Meaning:Cause of RRC connection establishment, that is, the
RRC Connection and value of the establishment cause IE in the RRC CONNECTION
Radio Access Bearer REQUEST message.
Establishment and

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Load Control Feature Parameter Description

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Release

GUI Value Range:ORIGCONVCALLEST,
ORIGSTREAMCALLEST, ORIGINTERCALLEST,
ORIGBKGCALLEST, ORIGSUBSTRAFFCALLEST,
TERMCONVCALLEST, TERMSTREAMCALLEST,
TERMINTERCALLEST, TERMBKGCALLEST,
EMERGCALLEST, INTERRATCELLRESELEST,
INTERRATCELLCHGORDEREST, REGISTEST, DETACHEST,
ORIGHIGHPRIORSIGEST, ORIGLOWPRIORSIGEST,
CALLREEST, TERMHIGHPRIORSIGEST,
TERMLOWPRIORSIGEST, TERMCAUSEUNKNOWN,
MBMSCALLEST, DEFAULTEST
Unit:None
Actual Value Range:ORIGCONVCALLEST,
ORIGSTREAMCALLEST, ORIGINTERCALLEST,
ORIGBKGCALLEST, ORIGSUBSTRAFFCALLEST,
TERMCONVCALLEST, TERMSTREAMCALLEST,
TERMINTERCALLEST, TERMBKGCALLEST,
EMERGCALLEST, INTERRATCELLRESELEST,
INTERRATCELLCHGORDEREST, REGISTEST, DETACHEST,
ORIGHIGHPRIORSIGEST, ORIGLOWPRIORSIGEST,
CALLREEST, TERMHIGHPRIORSIGEST,
TERMLOWPRIORSIGEST, TERMCAUSEUNKNOWN,
MBMSCALLEST, DEFAULTEST
Default Value:None

RrcCause

BSC6910 SET URRCESTCAUSE

WRFD010510

3.4/6.8/13.6/27.2Kbps
RRC Connection and
Radio Access Bearer
Establishment and
Release

Meaning:Cause of RRC connection establishment, that is, the
value of the establishment cause IE in the RRC CONNECTION
REQUEST message.
GUI Value Range:ORIGCONVCALLEST,
ORIGSTREAMCALLEST, ORIGINTERCALLEST,
ORIGBKGCALLEST, ORIGSUBSTRAFFCALLEST,
TERMCONVCALLEST, TERMSTREAMCALLEST,
TERMINTERCALLEST, TERMBKGCALLEST,
EMERGCALLEST, INTERRATCELLRESELEST,
INTERRATCELLCHGORDEREST, REGISTEST, DETACHEST,
ORIGHIGHPRIORSIGEST, ORIGLOWPRIORSIGEST,
CALLREEST, TERMHIGHPRIORSIGEST,
TERMLOWPRIORSIGEST, TERMCAUSEUNKNOWN,
MBMSCALLEST, DEFAULTEST
Unit:None
Actual Value Range:ORIGCONVCALLEST,
ORIGSTREAMCALLEST, ORIGINTERCALLEST,
ORIGBKGCALLEST, ORIGSUBSTRAFFCALLEST,
TERMCONVCALLEST, TERMSTREAMCALLEST,
TERMINTERCALLEST, TERMBKGCALLEST,
EMERGCALLEST, INTERRATCELLRESELEST,
INTERRATCELLCHGORDEREST, REGISTEST, DETACHEST,
ORIGHIGHPRIORSIGEST, ORIGLOWPRIORSIGEST,
CALLREEST, TERMHIGHPRIORSIGEST,
TERMLOWPRIORSIGEST, TERMCAUSEUNKNOWN,
MBMSCALLEST, DEFAULTEST
Default Value:None

FACHPower4RRCRepEcNoThd

BSC6900 SET URRCESTCAUSE

WRFD010510

3.4/6.8/13.6/27.2Kbps
RRC Connection and
Radio Access Bearer
Establishment and
Release

Meaning:Ec/No threshold for increasing the FACH transmit
power when the RNC sends a duplicate RRC Connection Setup
message to the UE. At the RRC connection setup phase, if the
FACH Ec/No value reported by the UE is less than the
threshold, the RNC increases the FACH power when sending a
duplicate RRC Connection Setup message. Otherwise, the RNC
retains the FACH power. If this parameter is set to -24, the RNC
does not increase the FACH transmit power when sending a
duplicate RRC Connection Setup message. For details, see
3GPP TS 25.215.
GUI Value Range:-24~0
Unit:dB
Actual Value Range:-24~0
Default Value:-24

FACHPower4RRCRepEcNoThd

BSC6910 SET URRCESTCAUSE

WRFD010510

3.4/6.8/13.6/27.2Kbps
RRC Connection and
Radio Access Bearer
Establishment and
Release

Meaning:Ec/No threshold for increasing the FACH transmit
power when the RNC sends a duplicate RRC Connection Setup
message to the UE. At the RRC connection setup phase, if the
FACH Ec/No value reported by the UE is less than the
threshold, the RNC increases the FACH power when sending a
duplicate RRC Connection Setup message. Otherwise, the RNC
retains the FACH power. If this parameter is set to -24, the RNC
does not increase the FACH transmit power when sending a
duplicate RRC Connection Setup message. For details, see
3GPP TS 25.215.
GUI Value Range:-24~0
Unit:dB
Actual Value Range:-24~0
Default Value:-24

MaxFachPower

BSC6900 ADD UFACH
MOD UFACH

WRFD020501

Open Loop Power
Control

Meaning:The offset between the FACH transmit power and PCPICH transmit power in a cell. For detailed information of this
parameter, see 3GPP TS 25.433.
GUI Value Range:-350~150
Unit:0.1dB
Actual Value Range:-35~15
Default Value:10

MaxFachPower

BSC6910 ADD UFACH
MOD UFACH

WRFD020501

Open Loop Power
Control

Meaning:The offset between the FACH transmit power and PCPICH transmit power in a cell. For detailed information of this
parameter, see 3GPP TS 25.433.
GUI Value Range:-350~150
Unit:0.1dB
Actual Value Range:-35~15
Default Value:10

SigRbInd

BSC6900 ADD UFACH
MOD UFACH

WRFD020900

Logical Channel
Management

Meaning:Indicating whether the FACH bears signalling
GUI Value Range:FALSE, TRUE

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Unit:None
Actual Value Range:FALSE, TRUE
Default Value:True
SigRbInd

BSC6910 ADD UFACH
MOD UFACH

WRFD020900

Logical Channel
Management

Meaning:Indicating whether the FACH bears signalling
GUI Value Range:FALSE, TRUE
Unit:None
Actual Value Range:FALSE, TRUE
Default Value:True

TrChId

BSC6900 ADD UFACH
MOD UFACH
RMV UFACH

WRFD010101

3GPP R9
Specifications

Meaning:Uniquely identifying a FACH in a cell.The ID of a
common transport channel is used to identify a common
physical channel in a cell. Each common physical channel is
uniquely numbered within a cell. The IDs of common physical
channels should be planned before the channels are configured
for the cell. Configured according to the product
specifications.One cell has at least two FACHs.One FACH bears
signal, the other bears traffic.One S-CCPCH carries zero to two
FACHs.
GUI Value Range:1~32
Unit:None
Actual Value Range:1~32
Default Value:None

TrChId

BSC6910 ADD UFACH
MOD UFACH
RMV UFACH

WRFD010101

3GPP R9
Specifications

Meaning:Uniquely identifying a FACH in a cell.The ID of a
common transport channel is used to identify a common
physical channel in a cell. Each common physical channel is
uniquely numbered within a cell. The IDs of common physical
channels should be planned before the channels are configured
for the cell. Configured according to the product
specifications.One cell has at least two FACHs.One FACH bears
signal, the other bears traffic.One S-CCPCH carries zero to two
FACHs.
GUI Value Range:1~32
Unit:None
Actual Value Range:1~32
Default Value:None

OffsetFACHPower

BSC6900 ADD UFACH
MOD UFACH

WRFD010510

3.4/6.8/13.6/27.2Kbps
RRC Connection and
Radio Access Bearer
Establishment and
Release

Meaning:Specifies the offset of the initial FACH power to the
maximum FACH transmit power. The initial FACH power is
calculated using the offset based on the following formula:
"MaxFACHPower" - OffsetFACHPower. Note:To configure this
parameter, the actual value of the initial FACH power ranges
from -35 dB to 15 dB. Otherwise, the value is 0. For details, see
3GPP TS 25.433.
GUI Value Range:0~255
Unit:0.1dB
Actual Value Range:0~25.5
Default Value:0

OffsetFACHPower

BSC6910 ADD UFACH
MOD UFACH

WRFD010510

3.4/6.8/13.6/27.2Kbps
RRC Connection and
Radio Access Bearer
Establishment and
Release

Meaning:Specifies the offset of the initial FACH power to the
maximum FACH transmit power. The initial FACH power is
calculated using the offset based on the following formula:
"MaxFACHPower" - OffsetFACHPower. Note:To configure this
parameter, the actual value of the initial FACH power ranges
from -35 dB to 15 dB. Otherwise, the value is 0. For details, see
3GPP TS 25.433.
GUI Value Range:0~255
Unit:0.1dB
Actual Value Range:0~25.5
Default Value:0

BeInitBitrateTypeforCsPs

BSC6900 SET UFRC

WRFD01060902
WRFD01061206
WRFD021101

Combination of One
CS Service and One
PS Service
Interactive and
Background Traffic
Class on HSUPA
Dynamic Channel
Configuration Control
(DCCC)

Meaning:Type of the channel for carrying PS BE services and
the initial service access rate in scenarios of CS+PS BE
combined services. OFF: The channel bearing type and initial
access rate of PS BE services are not limited. DCH0K: PS BE
services are carried over the DCH in the uplink and downlink
and the initial access rate of the PS BE services is 0 kbit/s.
DCH8K: PS BE services are carried over the DCH in the uplink
and downlink and the initial access rate of the PS BE services is
8 kbit/s. DCH8KHSDPA: PS BE services are carried over the
DCH in the uplink and the initial access rate of the PS BE
services is 8 kbit/s. In the downlink, the channel for carrying PS
BE services and the initial access rate are not limited. When this
parameter is set to DCH0K, DCH8K, or DCH8KHSDPA, periodic
retries of a UE are prohibited.
GUI Value Range:OFF, DCH0K, DCH8K, DCH8KHSDPA
Unit:None
Actual Value Range:OFF, DCH0K, DCH8K, DCH8KHSDPA
Default Value:OFF

BeInitBitrateTypeforCsPs

BSC6910 SET UFRC

WRFD01060902
WRFD01061206
WRFD021101

Combination of One
CS Service and One
PS Service
Interactive and
Background Traffic
Class on HSUPA
Dynamic Channel
Configuration Control
(DCCC)

Meaning:Type of the channel for carrying PS BE services and
the initial service access rate in scenarios of CS+PS BE
combined services. OFF: The channel bearing type and initial
access rate of PS BE services are not limited. DCH0K: PS BE
services are carried over the DCH in the uplink and downlink
and the initial access rate of the PS BE services is 0 kbit/s.
DCH8K: PS BE services are carried over the DCH in the uplink
and downlink and the initial access rate of the PS BE services is
8 kbit/s. DCH8KHSDPA: PS BE services are carried over the
DCH in the uplink and the initial access rate of the PS BE
services is 8 kbit/s. In the downlink, the channel for carrying PS
BE services and the initial access rate are not limited. When this
parameter is set to DCH0K, DCH8K, or DCH8KHSDPA, periodic
retries of a UE are prohibited.
GUI Value Range:OFF, DCH0K, DCH8K, DCH8KHSDPA
Unit:None
Actual Value Range:OFF, DCH0K, DCH8K, DCH8KHSDPA
Default Value:OFF

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ReservedSwitch0

BSC6900 SET UCORRMALGOSWITCH

WRFD02040001
WRFD021400
WRFD020203
WRFD010613
WRFD020701

Intra System Direct
Retry
Direct Signaling
Connection Reestablishment
(DSCR)
Inter RNC Soft
Handover
AMR-WB (Adaptive
Multi Rate Wide
Band)
AMR/WB-AMR
Speech Rates Control

Meaning:CORRM algorithm reserved switch 0. The switch is
reserved for further change request use. Disuse statement: This
parameter is used temporarily in patch versions and will be
replaced with a new parameter in later versions. The new
parameter ID reflects the parameter function. Therefore, this
parameter is not recommended for the configuration interface.
GUI Value Range:RESERVED_SWITCH_0_BIT1,
RESERVED_SWITCH_0_BIT2, RESERVED_SWITCH_0_BIT3,
RESERVED_SWITCH_0_BIT4, RESERVED_SWITCH_0_BIT5,
RESERVED_SWITCH_0_BIT6, RESERVED_SWITCH_0_BIT7,
RESERVED_SWITCH_0_BIT8, RESERVED_SWITCH_0_BIT9,
RESERVED_SWITCH_0_BIT10,
RESERVED_SWITCH_0_BIT11,
RESERVED_SWITCH_0_BIT12,
RESERVED_SWITCH_0_BIT13,
RESERVED_SWITCH_0_BIT14,
RESERVED_SWITCH_0_BIT15,
RESERVED_SWITCH_0_BIT16,
RESERVED_SWITCH_0_BIT17,
RESERVED_SWITCH_0_BIT18,
RESERVED_SWITCH_0_BIT19,
RESERVED_SWITCH_0_BIT20,
RESERVED_SWITCH_0_BIT21,
RESERVED_SWITCH_0_BIT22,
RESERVED_SWITCH_0_BIT23,
RESERVED_SWITCH_0_BIT24,
RESERVED_SWITCH_0_BIT25,
RESERVED_SWITCH_0_BIT26,
RESERVED_SWITCH_0_BIT27,
RESERVED_SWITCH_0_BIT28,
RESERVED_SWITCH_0_BIT29,
RESERVED_SWITCH_0_BIT30,
RESERVED_SWITCH_0_BIT31,
RESERVED_SWITCH_0_BIT32
Unit:None
Actual Value Range:RESERVED_SWITCH_0_BIT1,
RESERVED_SWITCH_0_BIT2, RESERVED_SWITCH_0_BIT3,
RESERVED_SWITCH_0_BIT4, RESERVED_SWITCH_0_BIT5,
RESERVED_SWITCH_0_BIT6, RESERVED_SWITCH_0_BIT7,
RESERVED_SWITCH_0_BIT8, RESERVED_SWITCH_0_BIT9,
RESERVED_SWITCH_0_BIT10,
RESERVED_SWITCH_0_BIT11,
RESERVED_SWITCH_0_BIT12,
RESERVED_SWITCH_0_BIT13,
RESERVED_SWITCH_0_BIT14,
RESERVED_SWITCH_0_BIT15,
RESERVED_SWITCH_0_BIT16,
RESERVED_SWITCH_0_BIT17,
RESERVED_SWITCH_0_BIT18,
RESERVED_SWITCH_0_BIT19,
RESERVED_SWITCH_0_BIT20,
RESERVED_SWITCH_0_BIT21,
RESERVED_SWITCH_0_BIT22,
RESERVED_SWITCH_0_BIT23,
RESERVED_SWITCH_0_BIT24,
RESERVED_SWITCH_0_BIT25,
RESERVED_SWITCH_0_BIT26,
RESERVED_SWITCH_0_BIT27,
RESERVED_SWITCH_0_BIT28,
RESERVED_SWITCH_0_BIT29,
RESERVED_SWITCH_0_BIT30,
RESERVED_SWITCH_0_BIT31,
RESERVED_SWITCH_0_BIT32
Default Value:RESERVED_SWITCH_0_BIT10&RESERVED_SWITCH_0_BIT20&RESERVED_SWITCH_0_BIT30&RESERVED_SWITCH_0_BIT40&RESERVED_SWITCH_0_BIT50&RESERVED_SWITCH_0_BIT60&RESERVED_SWITCH_0_BIT70&RESERVED_SWITCH_0_BIT80&RESERVED_SWITCH_0_BIT90&RESERVED_SWITCH_0_BIT100&RESERVED_SWITCH_0_BIT110&RESERVED_SWITCH_0_BIT120&RESERVED_SWITCH_0_BIT130&RESERVED_SWITCH_0_BIT140&RESERVED_SWITCH_0_BIT150&RESERVED_SWITCH_0_BIT160&RESERVED_SWITCH_0_BIT170&RESERVED_SWITCH_0_BIT180&RESERVED_SWITCH_0_BIT190&RESERVED_SWITCH_0_BIT200&RESERVED_SWITCH_0_BIT210&RESERVED_SWITCH_0_BIT220&RESERVED_SWITCH_0_BIT230&RESERVED_SWITCH_0_BIT240&RESERVED_SWITCH_0_BIT250&RESERVED_SWITCH_0_BIT260&RESERVED_SWITCH_0_BIT270&RESERVED_SWITCH_0_BIT280&RESERVED_SWITCH_0_BIT290&RESERVED_SWITCH_0_BIT300&RESERVED_SWITCH_0_BIT310&RESERVED_SWITCH_0_BIT32-0

ReservedSwitch0

BSC6910 SET UCORRMALGOSWITCH

WRFD02040001
WRFD021400
WRFD020203
WRFD010613

Intra System Direct
Retry
Direct Signaling
Connection Reestablishment
(DSCR)
Inter RNC Soft
Handover

Meaning:CORRM algorithm reserved switch 0. The switch is
reserved for further change request use. Disuse statement: This
parameter is used temporarily in patch versions and will be
replaced with a new parameter in later versions. The new
parameter ID reflects the parameter function. Therefore, this
parameter is not recommended for the configuration interface.
GUI Value Range:RESERVED_SWITCH_0_BIT1,
RESERVED_SWITCH_0_BIT2, RESERVED_SWITCH_0_BIT3,

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Load Control Feature Parameter Description

PreemptEnhSwitch

BSC6900 SET UQUEUEPREEMPT

Page 52 of 143

WRFD020701

AMR-WB (Adaptive
Multi Rate Wide
Band)
AMR/WB-AMR
Speech Rates Control

RESERVED_SWITCH_0_BIT4, RESERVED_SWITCH_0_BIT5,
RESERVED_SWITCH_0_BIT6, RESERVED_SWITCH_0_BIT7,
RESERVED_SWITCH_0_BIT8, RESERVED_SWITCH_0_BIT9,
RESERVED_SWITCH_0_BIT10,
RESERVED_SWITCH_0_BIT11,
RESERVED_SWITCH_0_BIT12,
RESERVED_SWITCH_0_BIT13,
RESERVED_SWITCH_0_BIT14,
RESERVED_SWITCH_0_BIT15,
RESERVED_SWITCH_0_BIT16,
RESERVED_SWITCH_0_BIT17,
RESERVED_SWITCH_0_BIT18,
RESERVED_SWITCH_0_BIT19,
RESERVED_SWITCH_0_BIT20,
RESERVED_SWITCH_0_BIT21,
RESERVED_SWITCH_0_BIT22,
RESERVED_SWITCH_0_BIT23,
RESERVED_SWITCH_0_BIT24,
RESERVED_SWITCH_0_BIT25,
RESERVED_SWITCH_0_BIT26,
RESERVED_SWITCH_0_BIT27,
RESERVED_SWITCH_0_BIT28,
RESERVED_SWITCH_0_BIT29,
RESERVED_SWITCH_0_BIT30,
RESERVED_SWITCH_0_BIT31,
RESERVED_SWITCH_0_BIT32
Unit:None
Actual Value Range:RESERVED_SWITCH_0_BIT1,
RESERVED_SWITCH_0_BIT2, RESERVED_SWITCH_0_BIT3,
RESERVED_SWITCH_0_BIT4, RESERVED_SWITCH_0_BIT5,
RESERVED_SWITCH_0_BIT6, RESERVED_SWITCH_0_BIT7,
RESERVED_SWITCH_0_BIT8, RESERVED_SWITCH_0_BIT9,
RESERVED_SWITCH_0_BIT10,
RESERVED_SWITCH_0_BIT11,
RESERVED_SWITCH_0_BIT12,
RESERVED_SWITCH_0_BIT13,
RESERVED_SWITCH_0_BIT14,
RESERVED_SWITCH_0_BIT15,
RESERVED_SWITCH_0_BIT16,
RESERVED_SWITCH_0_BIT17,
RESERVED_SWITCH_0_BIT18,
RESERVED_SWITCH_0_BIT19,
RESERVED_SWITCH_0_BIT20,
RESERVED_SWITCH_0_BIT21,
RESERVED_SWITCH_0_BIT22,
RESERVED_SWITCH_0_BIT23,
RESERVED_SWITCH_0_BIT24,
RESERVED_SWITCH_0_BIT25,
RESERVED_SWITCH_0_BIT26,
RESERVED_SWITCH_0_BIT27,
RESERVED_SWITCH_0_BIT28,
RESERVED_SWITCH_0_BIT29,
RESERVED_SWITCH_0_BIT30,
RESERVED_SWITCH_0_BIT31,
RESERVED_SWITCH_0_BIT32
Default Value:RESERVED_SWITCH_0_BIT10&RESERVED_SWITCH_0_BIT20&RESERVED_SWITCH_0_BIT30&RESERVED_SWITCH_0_BIT40&RESERVED_SWITCH_0_BIT50&RESERVED_SWITCH_0_BIT60&RESERVED_SWITCH_0_BIT70&RESERVED_SWITCH_0_BIT80&RESERVED_SWITCH_0_BIT90&RESERVED_SWITCH_0_BIT100&RESERVED_SWITCH_0_BIT110&RESERVED_SWITCH_0_BIT120&RESERVED_SWITCH_0_BIT130&RESERVED_SWITCH_0_BIT140&RESERVED_SWITCH_0_BIT150&RESERVED_SWITCH_0_BIT160&RESERVED_SWITCH_0_BIT170&RESERVED_SWITCH_0_BIT180&RESERVED_SWITCH_0_BIT190&RESERVED_SWITCH_0_BIT200&RESERVED_SWITCH_0_BIT210&RESERVED_SWITCH_0_BIT220&RESERVED_SWITCH_0_BIT230&RESERVED_SWITCH_0_BIT240&RESERVED_SWITCH_0_BIT250&RESERVED_SWITCH_0_BIT260&RESERVED_SWITCH_0_BIT270&RESERVED_SWITCH_0_BIT280&RESERVED_SWITCH_0_BIT290&RESERVED_SWITCH_0_BIT300&RESERVED_SWITCH_0_BIT310&RESERVED_SWITCH_0_BIT32-0

WRFD010505

Queuing and PreEmption

Meaning:1.
PREEMPT_ENH_NODEB_PREEMPT_CE_SWITCH: Whether
to activate CE-based user preemption on the NodeB side. If this
switch is turned on, the RNC sends the NodeB a user list
containing users that can be preempted. The NodeB selects
users for preemption based on the consumed CEs. 2.
PREEMPT_ENH_HSSCCH_PREEMPT_SF_SWITCH: Whether
channel codes can be obtained by preempting SF resources of
R99 users when HS-SCCH channels are being
established.When this switch is turned on, the RNC preempts
SF resources occupied by R99 users to set up HSSCCHs.When the switch is turned off, the RNC searches for
vacant SF resources to set up HS-SCCHs in scenarios where
SF resources are occupied by R99 users. 3.
PREEMPT_ENH_CSRRC_PREEMPT_PS_SWITCH: Whether
RRC connection requests for CS services preempt resources for

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Load Control Feature Parameter Description

Page 53 of 143

PS services when cell resources are insufficient.When this
switch is turned on, CS services preempt resources occupied by
PS services to access the cell, if RRC connection requests for
CS services fail due to insufficient cell resources.When this
switch is turned off, RRC connection requests for CS services
cannot initiate a preemption for resources occupied by PS
services. 4.
PREEMPT_ENH_CSRAB_PREEMPT_PS_SWITCH: Whether
CS access requests preempt resources for PS services when
cell resources are insufficient.When this switch is turned on, CS
services preempt resources occupied by PS services to access
the cell, if CS access requests fail due to insufficient cell
resources.When this switch is turned off, CS access requests
cannot initiate a preemption for resources occupied by PS
services. 5.
PREEMPT_ENH_CPU_HIGHLOAD_CTRL_SWITCH: Whether
preemption is allowed when the CPU load is high. When this
switch is turned on, a user checks the CPU load when
attempting to preempt other users' resources due to insufficient
cell resources and cannot preempt other users' resources when
the CPU usage is higher than 70%. When this switch is turned
off, the user does not consider the CPU load when preempting
other users' resources.
GUI Value
Range:PREEMPT_ENH_NODEB_PREEMPT_CE_SWITCH,
PREEMPT_ENH_HSSCCH_PREEMPT_SF_SWITCH,
PREEMPT_ENH_CSRRC_PREEMPT_PS_SWITCH,
PREEMPT_ENH_CSRAB_PREEMPT_PS_SWITCH,
PREEMPT_ENH_CPU_HIGHLOAD_CTRL_SWITCH
Unit:None
Actual Value
Range:PREEMPT_ENH_NODEB_PREEMPT_CE_SWITCH,
PREEMPT_ENH_HSSCCH_PREEMPT_SF_SWITCH,
PREEMPT_ENH_CSRRC_PREEMPT_PS_SWITCH,
PREEMPT_ENH_CSRAB_PREEMPT_PS_SWITCH,
PREEMPT_ENH_CPU_HIGHLOAD_CTRL_SWITCH
Default
Value:PREEMPT_ENH_NODEB_PREEMPT_CE_SWITCH0&PREEMPT_ENH_HSSCCH_PREEMPT_SF_SWITCH0&PREEMPT_ENH_CSRRC_PREEMPT_PS_SWITCH0&PREEMPT_ENH_CSRAB_PREEMPT_PS_SWITCH0&PREEMPT_ENH_CPU_HIGHLOAD_CTRL_SWITCH-1
PreemptEnhSwitch

BSC6910 SET UQUEUEPREEMPT

WRFD010505

Queuing and PreEmption

Meaning:1.
PREEMPT_ENH_NODEB_PREEMPT_CE_SWITCH: Whether
to activate CE-based user preemption on the NodeB side. If this
switch is turned on, the RNC sends the NodeB a user list
containing users that can be preempted. The NodeB selects
users for preemption based on the consumed CEs. 2.
PREEMPT_ENH_HSSCCH_PREEMPT_SF_SWITCH: Whether
channel codes can be obtained by preempting SF resources of
R99 users when HS-SCCH channels are being
established.When this switch is turned on, the RNC preempts
SF resources occupied by R99 users to set up HSSCCHs.When the switch is turned off, the RNC searches for
vacant SF resources to set up HS-SCCHs in scenarios where
SF resources are occupied by R99 users. 3.
PREEMPT_ENH_CSRRC_PREEMPT_PS_SWITCH: Whether
RRC connection requests for CS services preempt resources for
PS services when cell resources are insufficient.When this
switch is turned on, CS services preempt resources occupied by
PS services to access the cell, if RRC connection requests for
CS services fail due to insufficient cell resources.When this
switch is turned off, RRC connection requests for CS services
cannot initiate a preemption for resources occupied by PS
services. 4.
PREEMPT_ENH_CSRAB_PREEMPT_PS_SWITCH: Whether
CS access requests preempt resources for PS services when
cell resources are insufficient.When this switch is turned on, CS
services preempt resources occupied by PS services to access
the cell, if CS access requests fail due to insufficient cell
resources.When this switch is turned off, CS access requests
cannot initiate a preemption for resources occupied by PS
services. 5.
PREEMPT_ENH_CPU_HIGHLOAD_CTRL_SWITCH: Whether
preemption is allowed when the CPU load is high. When this
switch is turned on, a user checks the CPU load when
attempting to preempt other users' resources due to insufficient
cell resources and cannot preempt other users' resources when
the CPU usage is higher than 70%. When this switch is turned
off, the user does not consider the CPU load when preempting
other users' resources.
GUI Value
Range:PREEMPT_ENH_NODEB_PREEMPT_CE_SWITCH,
PREEMPT_ENH_HSSCCH_PREEMPT_SF_SWITCH,
PREEMPT_ENH_CSRRC_PREEMPT_PS_SWITCH,
PREEMPT_ENH_CSRAB_PREEMPT_PS_SWITCH,
PREEMPT_ENH_CPU_HIGHLOAD_CTRL_SWITCH
Unit:None
Actual Value
Range:PREEMPT_ENH_NODEB_PREEMPT_CE_SWITCH,
PREEMPT_ENH_HSSCCH_PREEMPT_SF_SWITCH,
PREEMPT_ENH_CSRRC_PREEMPT_PS_SWITCH,
PREEMPT_ENH_CSRAB_PREEMPT_PS_SWITCH,
PREEMPT_ENH_CPU_HIGHLOAD_CTRL_SWITCH
Default
Value:PREEMPT_ENH_NODEB_PREEMPT_CE_SWITCH0&PREEMPT_ENH_HSSCCH_PREEMPT_SF_SWITCH0&PREEMPT_ENH_CSRRC_PREEMPT_PS_SWITCH0&PREEMPT_ENH_CSRAB_PREEMPT_PS_SWITCH0&PREEMPT_ENH_CPU_HIGHLOAD_CTRL_SWITCH-1

PriorityReference

BSC6900 SET UUSERPRIORITY

WRFD020106

Load Reshuffling
Overload Control

Meaning:Reference used to determine which priority is arranged
first in the priority sequence. If the ARP is preferably used, the

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WRFD020107
WRFD010505
WRFD020806

Queuing and PreEmption
Differentiated Service
Based on SPI Weight

priority sequence is gold > silver > copper. If the ARPs are all
the same, the TrafficClass is used and the priority sequence is
conversational > streaming > interactive > background. If the
TrafficClass is preferably used, the priority sequence is
conversational > streaming > interactive > background. If the
TrafficClass factors are all the same, the ARP factor is used and
the priority sequence is gold > silver > copper.
GUI Value Range:ARP, TrafficClass
Unit:None
Actual Value Range:ARP, TrafficClass
Default Value:ARP

PriorityReference

BSC6910 SET UUSERPRIORITY

WRFD020106
WRFD020107
WRFD010505
WRFD020806

Load Reshuffling
Overload Control
Queuing and PreEmption
Differentiated Service
Based on SPI Weight

Meaning:Reference used to determine which priority is arranged
first in the priority sequence. If the ARP is preferably used, the
priority sequence is gold > silver > copper. If the ARPs are all
the same, the TrafficClass is used and the priority sequence is
conversational > streaming > interactive > background. If the
TrafficClass is preferably used, the priority sequence is
conversational > streaming > interactive > background. If the
TrafficClass factors are all the same, the ARP factor is used and
the priority sequence is gold > silver > copper.
GUI Value Range:ARP, TrafficClass
Unit:None
Actual Value Range:ARP, TrafficClass
Default Value:ARP

CarrierTypePriorInd

BSC6900 SET UUSERPRIORITY

WRFD020106
WRFD020107
WRFD010505
WRFD020806

Load Reshuffling
Overload Control
Queuing and PreEmption
Differentiated Service
Based on SPI Weight

Meaning:Bearer type with a higher priority when ARP and
TrafficClass are both identical.
GUI Value Range:NONE, DCH, HSPA
Unit:None
Actual Value Range:NONE, DCH, HSPA
Default Value:NONE

CarrierTypePriorInd

BSC6910 SET UUSERPRIORITY

WRFD020106
WRFD020107
WRFD010505
WRFD020806

Load Reshuffling
Overload Control
Queuing and PreEmption
Differentiated Service
Based on SPI Weight

Meaning:Bearer type with a higher priority when ARP and
TrafficClass are both identical.
GUI Value Range:NONE, DCH, HSPA
Unit:None
Actual Value Range:NONE, DCH, HSPA
Default Value:NONE

UlIcLdcOptSwitch

BSC6900 ADD UCELLCAC
MOD UCELLCAC

WRFD020137

Dual-Threshold
Scheduling with
HSUPA Interference
Cancellation

Meaning:Whether to consider load on delay antennas or load on
real-time and delay antennas when setting the uplink power
threshold for admission and the LDR threshold.When this switch
is turned off, load on delay antennas is considered during the
setting of the uplink power threshold for admission and the LDR
threshold. When this switch is turned on, load on real-time and
delay antennas is considered during the setting of the two
thresholds.
GUI Value Range:OFF(OFF), ON(ON)
Unit:None
Actual Value Range:ON, OFF
Default Value:OFF(OFF)

UlIcLdcOptSwitch

BSC6910 ADD UCELLCAC
MOD UCELLCAC

WRFD020137

Dual-Threshold
Scheduling with
HSUPA Interference
Cancellation

Meaning:Whether to consider load on delay antennas or load on
real-time and delay antennas when setting the uplink power
threshold for admission and the LDR threshold.When this switch
is turned off, load on delay antennas is considered during the
setting of the uplink power threshold for admission and the LDR
threshold. When this switch is turned on, load on real-time and
delay antennas is considered during the setting of the two
thresholds.
GUI Value Range:OFF(OFF), ON(ON)
Unit:None
Actual Value Range:ON, OFF
Default Value:OFF(OFF)

MAXDELTAOFTARGETROT

BTS3900 SET ULOCELLMACEPARA
LST ULOCELLMACEPARA

WRFD020137

Dual-Threshold
Scheduling with
HSUPA Interference
Cancellation

Meaning:Indicates the max target RoT difference before and
after IC.
GUI Value Range:0~6
Unit:0.5dB
Actual Value Range:0~3, step:0.5
Default Value:0

MaxTxPower

BSC6900 ADD UCELLSETUP
MOD UCELL

WRFD020501

Open Loop Power
Control

Meaning:Sum of the maximum transmit power of all DL channels
in a cell. For detailed information of this parameter, see 3GPP
TS 25.433.
GUI Value Range:0~500
Unit:0.1dBm
Actual Value Range:0~50
Default Value:430

MaxTxPower

BSC6910 ADD UCELLSETUP
MOD UCELL

WRFD020501

Open Loop Power
Control

Meaning:Sum of the maximum transmit power of all DL channels
in a cell. For detailed information of this parameter, see 3GPP
TS 25.433.
GUI Value Range:0~500
Unit:0.1dBm
Actual Value Range:0~50
Default Value:430

ChoiceRprtUnitForUlBasicMeas

BSC6900 SET ULDM

WRFD020102

Load Measurement

Meaning:Report period unit for the following common
measurement results: 1. Received total wideband power. 2.
Received scheduled E-DCH power share. For details, see 3GPP
TS 25.433.
GUI Value Range:TEN_MSEC, MIN
Unit:None
Actual Value Range:TEN_MSEC, MIN

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Default Value:TEN_MSEC
ChoiceRprtUnitForUlBasicMeas

BSC6910 SET ULDM

WRFD020102

Load Measurement

Meaning:Report period unit for the following common
measurement results: 1. Received total wideband power. 2.
Received scheduled E-DCH power share. For details, see 3GPP
TS 25.433.
GUI Value Range:TEN_MSEC, MIN
Unit:None
Actual Value Range:TEN_MSEC, MIN
Default Value:TEN_MSEC

TenMsecForUlBasicMeas

BSC6900 SET ULDM

WRFD020102

Load Measurement

Meaning:The value of this parameter must be less than the
product of 1/2 and the value of either of the following parameters
in the "SET ULDCPERIOD" command:1. "LdrPeriodTimerLen" 2.
"OlcPeriodTimerLen" If the "ChoiceRprtUnitForUlBasicMeas"
parameter is set to TEN_MSEC, the value of this parameter
must satisfy the following relationship: TenMsecForUlBasicMeas
x UlbAvgFilterLen x 10 < IntraFreqUlbPeriodTimerLen x 1000 If
the "ChoiceRprtUnitForUlBasicMeas" parameter is set to MIN,
the value of this parameter must satisfy the following
relationship: MinForUlBasicMeas x UlbAvgFilterLen x 60 <
IntraFreqUlbPeriodTimerLen
GUI Value Range:1~6000
Unit:10ms
Actual Value Range:10~60000
Default Value:100

TenMsecForUlBasicMeas

BSC6910 SET ULDM

WRFD020102

Load Measurement

Meaning:The value of this parameter must be less than the
product of 1/2 and the value of either of the following parameters
in the "SET ULDCPERIOD" command:1. "LdrPeriodTimerLen" 2.
"OlcPeriodTimerLen" If the "ChoiceRprtUnitForUlBasicMeas"
parameter is set to TEN_MSEC, the value of this parameter
must satisfy the following relationship: TenMsecForUlBasicMeas
x UlbAvgFilterLen x 10 < IntraFreqUlbPeriodTimerLen x 1000 If
the "ChoiceRprtUnitForUlBasicMeas" parameter is set to MIN,
the value of this parameter must satisfy the following
relationship: MinForUlBasicMeas x UlbAvgFilterLen x 60 <
IntraFreqUlbPeriodTimerLen
GUI Value Range:1~6000
Unit:10ms
Actual Value Range:10~60000
Default Value:100

MinForUlBasicMeas

BSC6900 SET ULDM

WRFD020102

Load Measurement

Meaning:UL basic common measurement report cycle. For
details, see 3GPP TS 25.433.
GUI Value Range:1~60
Unit:min
Actual Value Range:1~60
Default Value:20

MinForUlBasicMeas

BSC6910 SET ULDM

WRFD020102

Load Measurement

Meaning:UL basic common measurement report cycle. For
details, see 3GPP TS 25.433.
GUI Value Range:1~60
Unit:min
Actual Value Range:1~60
Default Value:20

ChoiceRprtUnitForDlBasicMeas

BSC6900 SET ULDM

WRFD020102

Load Measurement

Meaning:Report period unit for the following common
measurement results: 1. Transmitted carrier power. 2.
Transmitted carrier power of all codes not used for HS-PDSCH,
HS-SCCH, E-AGCH, E-RGCH, or E-HICH transmission. For
details, see 3GPP TS 25.433.
GUI Value Range:TEN_MSEC, MIN
Unit:None
Actual Value Range:TEN_MSEC, MIN
Default Value:TEN_MSEC

ChoiceRprtUnitForDlBasicMeas

BSC6910 SET ULDM

WRFD020102

Load Measurement

Meaning:Report period unit for the following common
measurement results: 1. Transmitted carrier power. 2.
Transmitted carrier power of all codes not used for HS-PDSCH,
HS-SCCH, E-AGCH, E-RGCH, or E-HICH transmission. For
details, see 3GPP TS 25.433.
GUI Value Range:TEN_MSEC, MIN
Unit:None
Actual Value Range:TEN_MSEC, MIN
Default Value:TEN_MSEC

TenMsecForDlBasicMeas

BSC6900 SET ULDM

WRFD020102

Load Measurement

Meaning:DL basic common measurement report cycle. For
details, see 3GPP TS 25.433.
GUI Value Range:1~6000
Unit:10ms
Actual Value Range:10~60000
Default Value:100

TenMsecForDlBasicMeas

BSC6910 SET ULDM

WRFD020102

Load Measurement

Meaning:DL basic common measurement report cycle. For
details, see 3GPP TS 25.433.
GUI Value Range:1~6000
Unit:10ms
Actual Value Range:10~60000
Default Value:100

MinForDlBasicMeas

BSC6900 SET ULDM

WRFD020102

Load Measurement

Meaning:DL basic common measurement report cycle. For
details, see 3GPP TS 25.433.
GUI Value Range:1~60
Unit:min
Actual Value Range:1~60
Default Value:20

MinForDlBasicMeas

BSC6910 SET ULDM

WRFD-

Load Measurement

Meaning:DL basic common measurement report cycle. For

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020102

details, see 3GPP TS 25.433.
GUI Value Range:1~60
Unit:min
Actual Value Range:1~60
Default Value:20

ChoiceRprtUnitForHsdpaPwrMeas

BSC6900 SET ULDM

WRFD020102

Load Measurement

Meaning:If you set this parameter to TEN_MSEC, use [HSDPA
need pwr meas cycle,Unit:10ms] to specify the measurement
report period. If you set this parameter to MIN, use [HSDPA
need pwr meas cycle,Unit:min] to specify measurement report
period. For details, see 3GPP TS 25.433.
GUI Value Range:TEN_MSEC, MIN
Unit:None
Actual Value Range:TEN_MSEC, MIN
Default Value:TEN_MSEC

ChoiceRprtUnitForHsdpaPwrMeas

BSC6910 SET ULDM

WRFD020102

Load Measurement

Meaning:If you set this parameter to TEN_MSEC, use [HSDPA
need pwr meas cycle,Unit:10ms] to specify the measurement
report period. If you set this parameter to MIN, use [HSDPA
need pwr meas cycle,Unit:min] to specify measurement report
period. For details, see 3GPP TS 25.433.
GUI Value Range:TEN_MSEC, MIN
Unit:None
Actual Value Range:TEN_MSEC, MIN
Default Value:TEN_MSEC

TenMsecForHsdpaPwrMeas

BSC6900 SET ULDM

WRFD020102

Load Measurement

Meaning:HSDPA power requirement measurement report period
For details, see 3GPP TS 25.433.
GUI Value Range:1~6000
Unit:10ms
Actual Value Range:10~60000
Default Value:100

TenMsecForHsdpaPwrMeas

BSC6910 SET ULDM

WRFD020102

Load Measurement

Meaning:HSDPA power requirement measurement report period
For details, see 3GPP TS 25.433.
GUI Value Range:1~6000
Unit:10ms
Actual Value Range:10~60000
Default Value:100

MinForHsdpaPwrMeas

BSC6900 SET ULDM

WRFD020102

Load Measurement

Meaning:HSDPA power requirement measurement report period
For details, see 3GPP TS 25.433.
GUI Value Range:1~60
Unit:min
Actual Value Range:1~60
Default Value:10

MinForHsdpaPwrMeas

BSC6910 SET ULDM

WRFD020102

Load Measurement

Meaning:HSDPA power requirement measurement report period
For details, see 3GPP TS 25.433.
GUI Value Range:1~60
Unit:min
Actual Value Range:1~60
Default Value:10

ChoiceRprtUnitForHsdpaRateMeas BSC6900 SET ULDM

WRFD020102

Load Measurement

Meaning:Report period unit for the common measurement
results of the HS-DSCH provided bit rate. For details, see 3GPP
TS 25.433.
GUI Value Range:TEN_MSEC, MIN
Unit:None
Actual Value Range:TEN_MSEC, MIN
Default Value:TEN_MSEC

ChoiceRprtUnitForHsdpaRateMeas BSC6910 SET ULDM

WRFD020102

Load Measurement

Meaning:Report period unit for the common measurement
results of the HS-DSCH provided bit rate. For details, see 3GPP
TS 25.433.
GUI Value Range:TEN_MSEC, MIN
Unit:None
Actual Value Range:TEN_MSEC, MIN
Default Value:TEN_MSEC

TenMsecForHsdpaPrvidRateMeas

BSC6900 SET ULDM

WRFD020102

Load Measurement

Meaning:This parameter specifies the HSDPA bit rate
measurement report period. For details, see 3GPP TS 25.433.
GUI Value Range:1~6000
Unit:10ms
Actual Value Range:10~60000
Default Value:100

TenMsecForHsdpaPrvidRateMeas

BSC6910 SET ULDM

WRFD020102

Load Measurement

Meaning:This parameter specifies the HSDPA bit rate
measurement report period. For details, see 3GPP TS 25.433.
GUI Value Range:1~6000
Unit:10ms
Actual Value Range:10~60000
Default Value:100

MinForHsdpaPrvidRateMeas

BSC6900 SET ULDM

WRFD020102

Load Measurement

Meaning:This parameter specifies the HSDPA bit rate
measurement report period. For details, see 3GPP TS 25.433.
GUI Value Range:1~60
Unit:min
Actual Value Range:1~60
Default Value:10

MinForHsdpaPrvidRateMeas

BSC6910 SET ULDM

WRFD020102

Load Measurement

Meaning:This parameter specifies the HSDPA bit rate
measurement report period. For details, see 3GPP TS 25.433.
GUI Value Range:1~60
Unit:min
Actual Value Range:1~60
Default Value:10

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ChoiceRprtUnitForHsupaRateMeas BSC6900 SET ULDM

WRFD020102

Load Measurement

Meaning:Report period unit for the common measurement
results of the E-DCH provided bit rate. For details, see 3GPP TS
25.433.
GUI Value Range:TEN_MSEC, MIN
Unit:None
Actual Value Range:TEN_MSEC, MIN
Default Value:TEN_MSEC

ChoiceRprtUnitForHsupaRateMeas BSC6910 SET ULDM

WRFD020102

Load Measurement

Meaning:Report period unit for the common measurement
results of the E-DCH provided bit rate. For details, see 3GPP TS
25.433.
GUI Value Range:TEN_MSEC, MIN
Unit:None
Actual Value Range:TEN_MSEC, MIN
Default Value:TEN_MSEC

TenMsecForHsupaPrvidRateMeas

BSC6900 SET ULDM

WRFD020102

Load Measurement

Meaning:This parameter specifies the HSUPA bit rate
measurement report period. For details, see 3GPP TS 25.433.
GUI Value Range:1~6000
Unit:10ms
Actual Value Range:10~60000
Default Value:100

TenMsecForHsupaPrvidRateMeas

BSC6910 SET ULDM

WRFD020102

Load Measurement

Meaning:This parameter specifies the HSUPA bit rate
measurement report period. For details, see 3GPP TS 25.433.
GUI Value Range:1~6000
Unit:10ms
Actual Value Range:10~60000
Default Value:100

MinForHsupaPrvidRateMeas

BSC6900 SET ULDM

WRFD020102

Load Measurement

Meaning:This parameter specifies the HSUPA bit rate
measurement report period. For details, see 3GPP TS 25.433.
GUI Value Range:1~60
Unit:min
Actual Value Range:1~60
Default Value:1

MinForHsupaPrvidRateMeas

BSC6910 SET ULDM

WRFD020102

Load Measurement

Meaning:This parameter specifies the HSUPA bit rate
measurement report period. For details, see 3GPP TS 25.433.
GUI Value Range:1~60
Unit:min
Actual Value Range:1~60
Default Value:1

UlBasicCommMeasFilterCoeff

BSC6900 SET ULDM

WRFD020102

Load Measurement

Meaning:Filtering coefficient for the following common
measurement results: 1. Received total wideband power. 2.
Received scheduled E-DCH power share. The RNC notifies the
NodeB of this parameter by using a Common Measurement
Initiation Request message. For details, see 3GPP TS 25.433.
GUI Value Range:D0, D1, D2, D3, D4, D5, D6, D7, D8, D9, D11,
D13, D15, D17, D19
Unit:None
Actual Value Range:0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 13, 15, 17, 19
Default Value:D6

UlBasicCommMeasFilterCoeff

BSC6910 SET ULDM

WRFD020102

Load Measurement

Meaning:Filtering coefficient for the following common
measurement results: 1. Received total wideband power. 2.
Received scheduled E-DCH power share. The RNC notifies the
NodeB of this parameter by using a Common Measurement
Initiation Request message. For details, see 3GPP TS 25.433.
GUI Value Range:D0, D1, D2, D3, D4, D5, D6, D7, D8, D9, D11,
D13, D15, D17, D19
Unit:None
Actual Value Range:0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 13, 15, 17, 19
Default Value:D6

DlBasicCommMeasFilterCoeff

BSC6900 SET ULDM

WRFD020102

Load Measurement

Meaning:Filtering coefficient for the following common
measurement results: 1. Transmitted carrier power. 2.
Transmitted carrier power of all codes not used for HS-PDSCH,
HS-SCCH, E-AGCH, E-RGCH, or E-HICH transmission. The
RNC notifies the NodeB of this parameter by using a Common
Measurement Initiation Request message. For details, see
3GPP TS 25.433.
GUI Value Range:D0, D1, D2, D3, D4, D5, D6, D7, D8, D9, D11,
D13, D15, D17, D19
Unit:None
Actual Value Range:0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 13, 15, 17, 19
Default Value:D6

DlBasicCommMeasFilterCoeff

BSC6910 SET ULDM

WRFD020102

Load Measurement

Meaning:Filtering coefficient for the following common
measurement results: 1. Transmitted carrier power. 2.
Transmitted carrier power of all codes not used for HS-PDSCH,
HS-SCCH, E-AGCH, E-RGCH, or E-HICH transmission. The
RNC notifies the NodeB of this parameter by using a Common
Measurement Initiation Request message. For details, see
3GPP TS 25.433.
GUI Value Range:D0, D1, D2, D3, D4, D5, D6, D7, D8, D9, D11,
D13, D15, D17, D19
Unit:None
Actual Value Range:0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 13, 15, 17, 19
Default Value:D6

UlOlcMeasFilterCoeff

BSC6900 SET ULDM

WRFD020102

Load Measurement

Meaning:Filtering coefficient for the following common
measurement results to trigger event E: 1. Received total
wideband power. 2. Received scheduled E-DCH power share.
The RNC notifies the NodeB of this parameter by using a
Common Measurement Initiation Request message. For details,
see 3GPP TS 25.433.
GUI Value Range:D0, D1, D2, D3, D4, D5, D6, D7, D8, D9, D11,

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D13, D15, D17, D19
Unit:None
Actual Value Range:0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 13, 15, 17, 19
Default Value:D3
UlOlcMeasFilterCoeff

BSC6910 SET ULDM

WRFD020102

Load Measurement

Meaning:Filtering coefficient for the following common
measurement results to trigger event E: 1. Received total
wideband power. 2. Received scheduled E-DCH power share.
The RNC notifies the NodeB of this parameter by using a
Common Measurement Initiation Request message. For details,
see 3GPP TS 25.433.
GUI Value Range:D0, D1, D2, D3, D4, D5, D6, D7, D8, D9, D11,
D13, D15, D17, D19
Unit:None
Actual Value Range:0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 13, 15, 17, 19
Default Value:D3

DlOlcMeasFilterCoeff

BSC6900 SET ULDM

WRFD020102

Load Measurement

Meaning:Filtering coefficient for the following common
measurement results to trigger event E: 1. Transmitted carrier
power. 2. Transmitted carrier power of all codes not used for
HS-PDSCH, HS-SCCH, E-AGCH, E-RGCH, or E-HICH
transmission. The RNC notifies the NodeB of this parameter by
using a Common Measurement Initiation Request message. For
details, see 3GPP TS 25.433.
GUI Value Range:D0, D1, D2, D3, D4, D5, D6, D7, D8, D9, D11,
D13, D15, D17, D19
Unit:None
Actual Value Range:0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 13, 15, 17, 19
Default Value:D3

DlOlcMeasFilterCoeff

BSC6910 SET ULDM

WRFD020102

Load Measurement

Meaning:Filtering coefficient for the following common
measurement results to trigger event E: 1. Transmitted carrier
power. 2. Transmitted carrier power of all codes not used for
HS-PDSCH, HS-SCCH, E-AGCH, E-RGCH, or E-HICH
transmission. The RNC notifies the NodeB of this parameter by
using a Common Measurement Initiation Request message. For
details, see 3GPP TS 25.433.
GUI Value Range:D0, D1, D2, D3, D4, D5, D6, D7, D8, D9, D11,
D13, D15, D17, D19
Unit:None
Actual Value Range:0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 13, 15, 17, 19
Default Value:D3

PucAvgFilterLen

BSC6900 SET ULDM

WRFD020102

Load Measurement

Meaning:Length of the filtering window when the RNC filters the
measurement results reported by the NodeB and the filtered
measurement results will be used in the PUC algorithm. This
parameter applies to filtering the common measurement results
of the transmitted carrier power.
GUI Value Range:1~32
Unit:None
Actual Value Range:1~32
Default Value:6

PucAvgFilterLen

BSC6910 SET ULDM

WRFD020102

Load Measurement

Meaning:Length of the filtering window when the RNC filters the
measurement results reported by the NodeB and the filtered
measurement results will be used in the PUC algorithm. This
parameter applies to filtering the common measurement results
of the transmitted carrier power.
GUI Value Range:1~32
Unit:None
Actual Value Range:1~32
Default Value:6

UlCacAvgFilterLen

BSC6900 SET ULDM

WRFD020102

Load Measurement

Meaning:Length of the filtering window when the RNC filters the
measurement results reported by the NodeB and the filtered
measurement results will be used in the uplink CAC algorithm.
This parameter applies to filtering the following common
measurement results: 1. Received total wideband power. 2.
Received scheduled E-DCH power share.
GUI Value Range:1~32
Unit:None
Actual Value Range:1~32
Default Value:5

UlCacAvgFilterLen

BSC6910 SET ULDM

WRFD020102

Load Measurement

Meaning:Length of the filtering window when the RNC filters the
measurement results reported by the NodeB and the filtered
measurement results will be used in the uplink CAC algorithm.
This parameter applies to filtering the following common
measurement results: 1. Received total wideband power. 2.
Received scheduled E-DCH power share.
GUI Value Range:1~32
Unit:None
Actual Value Range:1~32
Default Value:5

DlCacAvgFilterLen

BSC6900 SET ULDM

WRFD020102

Load Measurement

Meaning:Length of the filtering window when the RNC filters the
measurement results reported by the NodeB and the filtered
measurement results will be used in the downlink CAC
algorithm. This parameter applies to filtering the following
common measurement results: 1. Transmitted carrier power. 2.
Transmitted carrier power of all codes not used for HS-PDSCH,
HS-SCCH, E-AGCH, E-RGCH, or E-HICH transmission.
GUI Value Range:1~32
Unit:None
Actual Value Range:1~32
Default Value:5

DlCacAvgFilterLen

BSC6910 SET ULDM

WRFD020102

Load Measurement

Meaning:Length of the filtering window when the RNC filters the
measurement results reported by the NodeB and the filtered
measurement results will be used in the downlink CAC

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Load Control Feature Parameter Description

Page 59 of 143

algorithm. This parameter applies to filtering the following
common measurement results: 1. Transmitted carrier power. 2.
Transmitted carrier power of all codes not used for HS-PDSCH,
HS-SCCH, E-AGCH, E-RGCH, or E-HICH transmission.
GUI Value Range:1~32
Unit:None
Actual Value Range:1~32
Default Value:5
LdbAvgFilterLen

BSC6900 SET ULDM

WRFD020102

Load Measurement

Meaning:Length of the filtering window when the RNC filters the
measurement results reported by the NodeB and the filtered
measurement results will be used in the intra-frequency load
balancing algorithm. This parameter applies to filtering the
common measurement results of the transmitted carrier power.
GUI Value Range:1~32
Unit:None
Actual Value Range:1~32
Default Value:6

LdbAvgFilterLen

BSC6910 SET ULDM

WRFD020102

Load Measurement

Meaning:Length of the filtering window when the RNC filters the
measurement results reported by the NodeB and the filtered
measurement results will be used in the intra-frequency load
balancing algorithm. This parameter applies to filtering the
common measurement results of the transmitted carrier power.
GUI Value Range:1~32
Unit:None
Actual Value Range:1~32
Default Value:6

UlLdrAvgFilterLen

BSC6900 SET ULDM

WRFD020102

Load Measurement

Meaning:Length of the filtering window when the RNC filters the
measurement results reported by the NodeB and the filtered
measurement results will be used in the uplink LDR algorithm.
This parameter applies to filtering the following common
measurement results: 1. Received total wideband power. 2.
Received scheduled E-DCH power share.
GUI Value Range:1~32
Unit:None
Actual Value Range:1~32
Default Value:5

UlLdrAvgFilterLen

BSC6910 SET ULDM

WRFD020102

Load Measurement

Meaning:Length of the filtering window when the RNC filters the
measurement results reported by the NodeB and the filtered
measurement results will be used in the uplink LDR algorithm.
This parameter applies to filtering the following common
measurement results: 1. Received total wideband power. 2.
Received scheduled E-DCH power share.
GUI Value Range:1~32
Unit:None
Actual Value Range:1~32
Default Value:5

DlLdrAvgFilterLen

BSC6900 SET ULDM

WRFD020102

Load Measurement

Meaning:Length of the filtering window when the RNC filters the
measurement results reported by the NodeB and the filtered
measurement results will be used in the downlink LDR algorithm.
This parameter applies to filtering the following common
measurement results: 1. Transmitted carrier power. 2.
Transmitted carrier power of all codes not used for HS-PDSCH,
HS-SCCH, E-AGCH, E-RGCH, or E-HICH transmission.
GUI Value Range:1~32
Unit:None
Actual Value Range:1~32
Default Value:5

DlLdrAvgFilterLen

BSC6910 SET ULDM

WRFD020102

Load Measurement

Meaning:Length of the filtering window when the RNC filters the
measurement results reported by the NodeB and the filtered
measurement results will be used in the downlink LDR algorithm.
This parameter applies to filtering the following common
measurement results: 1. Transmitted carrier power. 2.
Transmitted carrier power of all codes not used for HS-PDSCH,
HS-SCCH, E-AGCH, E-RGCH, or E-HICH transmission.
GUI Value Range:1~32
Unit:None
Actual Value Range:1~32
Default Value:5

UlOlcAvgFilterLen

BSC6900 SET ULDM

WRFD020102

Load Measurement

Meaning:Length of the filtering window when the RNC filters the
measurement results reported by the NodeB and the filtered
measurement results will be used in the uplink OLC algorithm.
This parameter applies to filtering the following common
measurement results: 1. Received total wideband power. 2.
Received scheduled E-DCH power share.
GUI Value Range:1~32
Unit:None
Actual Value Range:1~32
Default Value:5

UlOlcAvgFilterLen

BSC6910 SET ULDM

WRFD020102

Load Measurement

Meaning:Length of the filtering window when the RNC filters the
measurement results reported by the NodeB and the filtered
measurement results will be used in the uplink OLC algorithm.
This parameter applies to filtering the following common
measurement results: 1. Received total wideband power. 2.
Received scheduled E-DCH power share.
GUI Value Range:1~32
Unit:None
Actual Value Range:1~32
Default Value:5

DlOlcAvgFilterLen

BSC6900 SET ULDM

WRFD020102

Load Measurement

Meaning:Length of the filtering window when the RNC filters the
measurement results reported by the NodeB and the filtered
measurement results will be used in the downlink OLC

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Load Control Feature Parameter Description

Page 60 of 143

algorithm. This parameter applies to filtering the following
common measurement results: 1. Transmitted carrier power. 2.
Transmitted carrier power of all codes not used for HS-PDSCH,
HS-SCCH, E-AGCH, E-RGCH, or E-HICH transmission.
GUI Value Range:1~32
Unit:None
Actual Value Range:1~32
Default Value:5
DlOlcAvgFilterLen

BSC6910 SET ULDM

WRFD020102

Load Measurement

Meaning:Length of the filtering window when the RNC filters the
measurement results reported by the NodeB and the filtered
measurement results will be used in the downlink OLC
algorithm. This parameter applies to filtering the following
common measurement results: 1. Transmitted carrier power. 2.
Transmitted carrier power of all codes not used for HS-PDSCH,
HS-SCCH, E-AGCH, E-RGCH, or E-HICH transmission.
GUI Value Range:1~32
Unit:None
Actual Value Range:1~32
Default Value:5

HsdpaNeedPwrFilterLen

BSC6900 SET ULDM

WRFD020102

Load Measurement

Meaning:Length of the filtering window when the RNC filters the
measurement results reported by the NodeB and the filtered
measurement results will be used in the downlink CAC
algorithm. This parameter applies to filtering the common
measurement results of the HS-DSCH required power.
GUI Value Range:1~32
Unit:None
Actual Value Range:1~32
Default Value:5

HsdpaNeedPwrFilterLen

BSC6910 SET ULDM

WRFD020102

Load Measurement

Meaning:Length of the filtering window when the RNC filters the
measurement results reported by the NodeB and the filtered
measurement results will be used in the downlink CAC
algorithm. This parameter applies to filtering the common
measurement results of the HS-DSCH required power.
GUI Value Range:1~32
Unit:None
Actual Value Range:1~32
Default Value:5

HsdpaPrvidBitRateFilterLen

BSC6900 SET ULDM

WRFD020102

Load Measurement

Meaning:Length of the filtering window when the RNC filters the
measurement results reported by the NodeB and the filtered
measurement results will be used in the downlink CAC
algorithm. This parameter applies to filtering the common
measurement results of the HS-DSCH provided bit rate.
GUI Value Range:1~32
Unit:None
Actual Value Range:1~32
Default Value:5

HsdpaPrvidBitRateFilterLen

BSC6910 SET ULDM

WRFD020102

Load Measurement

Meaning:Length of the filtering window when the RNC filters the
measurement results reported by the NodeB and the filtered
measurement results will be used in the downlink CAC
algorithm. This parameter applies to filtering the common
measurement results of the HS-DSCH provided bit rate.
GUI Value Range:1~32
Unit:None
Actual Value Range:1~32
Default Value:5

HsupaPrvidBitRateFilterLen

BSC6900 SET ULDM

WRFD020102

Load Measurement

Meaning:Length of the filtering window when the RNC filters the
measurement results reported by the NodeB and the filtered
measurement results will be used in the uplink CAC algorithm.
This parameter applies to filtering the common measurement
results of the E-DCH provided bit rate.
GUI Value Range:1~32
Unit:None
Actual Value Range:1~32
Default Value:5

HsupaPrvidBitRateFilterLen

BSC6910 SET ULDM

WRFD020102

Load Measurement

Meaning:Length of the filtering window when the RNC filters the
measurement results reported by the NodeB and the filtered
measurement results will be used in the uplink CAC algorithm.
This parameter applies to filtering the common measurement
results of the E-DCH provided bit rate.
GUI Value Range:1~32
Unit:None
Actual Value Range:1~32
Default Value:5

BGNSwitch

BSC6900 ADD UCELLCAC
MOD UCELLCAC

WRFD020101
WRFD020102

Admission Control
Load Measurement

Meaning:Whether the automatic background noise update
algorithm takes effect. When this parameter is set to ON, the
automatic background noise update algorithm is enabled and
the RNC determines whether to update the background noise of
a cell based on the output provided by the auto-adaptive
background noise update filter in the duration collectively
specified by the "BgnStartTime" and "BgnEndTime" parameters.
When this parameter is set to OFF, the automatic background
noise update algorithm is disabled and the RNC uses the value
of the "BackgroundNoise" parameter configured for a cell as the
background noise.
GUI Value Range:OFF, ON
Unit:None
Actual Value Range:OFF, ON
Default Value:ON

BGNSwitch

BSC6910 ADD UCELLCAC
MOD UCELLCAC

WRFD020101
WRFD-

Admission Control
Load Measurement

Meaning:Whether the automatic background noise update
algorithm takes effect. When this parameter is set to ON, the
automatic background noise update algorithm is enabled and

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Load Control Feature Parameter Description

Page 61 of 143

020102

the RNC determines whether to update the background noise of
a cell based on the output provided by the auto-adaptive
background noise update filter in the duration collectively
specified by the "BgnStartTime" and "BgnEndTime" parameters.
When this parameter is set to OFF, the automatic background
noise update algorithm is disabled and the RNC uses the value
of the "BackgroundNoise" parameter configured for a cell as the
background noise.
GUI Value Range:OFF, ON
Unit:None
Actual Value Range:OFF, ON
Default Value:ON

BGNAdjustTimeLen

BSC6900 ADD UCELLCAC
MOD UCELLCAC

WRFD020101
WRFD020102

Admission Control
Load Measurement

Meaning:Duration for automatic background noise update. Only
when the output provided by the auto-adaptive background
noise update filter is valid for a duration specified by this
parameter, the measured background noise can be regarded as
the valid background noise and used to replace the current
background noise. At the same time, the auto-adaptive
background noise update filter restarts. Otherwise, the output
provided by the auto-adaptive background noise update filter
cannot be used.
GUI Value Range:1~6000
Unit:s
Actual Value Range:1~6000
Default Value:120

BGNAdjustTimeLen

BSC6910 ADD UCELLCAC
MOD UCELLCAC

WRFD020101
WRFD020102

Admission Control
Load Measurement

Meaning:Duration for automatic background noise update. Only
when the output provided by the auto-adaptive background
noise update filter is valid for a duration specified by this
parameter, the measured background noise can be regarded as
the valid background noise and used to replace the current
background noise. At the same time, the auto-adaptive
background noise update filter restarts. Otherwise, the output
provided by the auto-adaptive background noise update filter
cannot be used.
GUI Value Range:1~6000
Unit:s
Actual Value Range:1~6000
Default Value:120

BackgroundNoise

BSC6900 ADD UCELLCAC
MOD UCELLCAC

WRFD020101
WRFD020102

Admission Control
Load Measurement

Meaning:If [Auto-Adaptive Background Noise Update Switch] is
set to OFF, it is used to set background noise of the cell. If
[Auto-Adaptive Background Noise Update Switch] is set to ON,
new background noise is restricted by this parameter and
"BgnAbnormalThd". For details about this parameter, see the
3GPP TS 25.133.
GUI Value Range:0~621
Unit:0.1dBm
Actual Value Range:-112~-50
Default Value:61

BackgroundNoise

BSC6910 ADD UCELLCAC
MOD UCELLCAC

WRFD020101
WRFD020102

Admission Control
Load Measurement

Meaning:If [Auto-Adaptive Background Noise Update Switch] is
set to OFF, it is used to set background noise of the cell. If
[Auto-Adaptive Background Noise Update Switch] is set to ON,
new background noise is restricted by this parameter and
"BgnAbnormalThd". For details about this parameter, see the
3GPP TS 25.133.
GUI Value Range:0~621
Unit:0.1dBm
Actual Value Range:-112~-50
Default Value:61

BgnStartTime

BSC6900 ADD UCELLCAC
MOD UCELLCAC

WRFD020101
WRFD020102

Admission Control
Load Measurement

Meaning:Time for enabling the automatic background noise
update algorithm. This parameter together with the
"BgnEndTime" parameter determines the duration in which the
automatic background noise update algorithm takes effect. That
is, when the "BGNSwitch" parameter is set to ON, the automatic
background noise update algorithm is activated from the time
specified by "BgnStartTime" to the time specified by PARA]
BgnEndTime" each day and is deactivated during other
periods.Input format: HH&MM&SS
GUI Value Range:hour, min, sec
Unit:None
Actual Value Range:hour0~23, min0~59, sec0~59
Default Value:None

BgnStartTime

BSC6910 ADD UCELLCAC
MOD UCELLCAC

WRFD020101
WRFD020102

Admission Control
Load Measurement

Meaning:Time for enabling the automatic background noise
update algorithm. This parameter together with the
"BgnEndTime" parameter determines the duration in which the
automatic background noise update algorithm takes effect. That
is, when the "BGNSwitch" parameter is set to ON, the automatic
background noise update algorithm is activated from the time
specified by "BgnStartTime" to the time specified by PARA]
BgnEndTime" each day and is deactivated during other
periods.Input format: HH&MM&SS
GUI Value Range:hour, min, sec
Unit:None
Actual Value Range:hour0~23, min0~59, sec0~59
Default Value:None

BgnEndTime

BSC6900 ADD UCELLCAC
MOD UCELLCAC

WRFD020101
WRFD020102

Admission Control
Load Measurement

Meaning:Time for disabling the automatic background noise
update algorithm. This parameter together with the
"BgnStartTime" parameter determines the duration in which the
automatic background noise update algorithm takes effect. That
is, when the "BGNSwitch" parameter is set to ON, the automatic
background noise update algorithm is activated from the time
specified by "BgnStartTime" to the time specified by PARA]
BgnEndTime" each day and is deactivated during other periods.
Input format: HH&MM&SS
GUI Value Range:hour, min, sec

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Load Control Feature Parameter Description

Page 62 of 143

Unit:None
Actual Value Range:hour0~23, min0~59, sec0~59
Default Value:None
BgnEndTime

BSC6910 ADD UCELLCAC
MOD UCELLCAC

WRFD020101
WRFD020102

Admission Control
Load Measurement

Meaning:Time for disabling the automatic background noise
update algorithm. This parameter together with the
"BgnStartTime" parameter determines the duration in which the
automatic background noise update algorithm takes effect. That
is, when the "BGNSwitch" parameter is set to ON, the automatic
background noise update algorithm is activated from the time
specified by "BgnStartTime" to the time specified by PARA]
BgnEndTime" each day and is deactivated during other periods.
Input format: HH&MM&SS
GUI Value Range:hour, min, sec
Unit:None
Actual Value Range:hour0~23, min0~59, sec0~59
Default Value:None

BGNOptSwitch

BSC6900 ADD UCELLCAC
MOD UCELLCAC

WRFD020101

Admission Control

Meaning:Whether the background noise update optimization
algorithm takes effect. When this parameter is set to ON, the
RNC checks the total uplink service load. If the total uplink
service load is less than or equal to the value of the
"BGNULLoadThd" parameter, the RNC uses the difference
between the RTWP and the total uplinks service load as the
current background noise. Therefore, the updated background
noise is more accurate. When this parameter is set to OFF, the
background noise update optimization algorithm does not take
effect and the original background noise update algorithm is
used. If the number of uplink equivalent uses is less than or
equal to the value of the "BGNEqUserNumThd" parameter, the
RNC updates the background noise by taking the uplink load
into account. As a result, the updated background noise is
inaccurate.
GUI Value Range:OFF(OFF), ON(ON)
Unit:None
Actual Value Range:ON, OFF
Default Value:OFF(OFF)

BGNOptSwitch

BSC6910 ADD UCELLCAC
MOD UCELLCAC

WRFD020101

Admission Control

Meaning:Whether the background noise update optimization
algorithm takes effect. When this parameter is set to ON, the
RNC checks the total uplink service load. If the total uplink
service load is less than or equal to the value of the
"BGNULLoadThd" parameter, the RNC uses the difference
between the RTWP and the total uplinks service load as the
current background noise. Therefore, the updated background
noise is more accurate. When this parameter is set to OFF, the
background noise update optimization algorithm does not take
effect and the original background noise update algorithm is
used. If the number of uplink equivalent uses is less than or
equal to the value of the "BGNEqUserNumThd" parameter, the
RNC updates the background noise by taking the uplink load
into account. As a result, the updated background noise is
inaccurate.
GUI Value Range:OFF(OFF), ON(ON)
Unit:None
Actual Value Range:ON, OFF
Default Value:OFF(OFF)

BGNEqUserNumThd

BSC6900 ADD UCELLCAC
MOD UCELLCAC

WRFD020101
WRFD020102

Admission Control
Load Measurement

Meaning:Threshold for the number of equivalent users for the
automatic background noise update. When the "BGNOptSwitch"
parameter is set to OFF, the RNC checks the number of uplink
equivalent users. If the number of uplink equivalent users is less
than or equal to this threshold, the corresponding measured
uplink RTWP is considered as the background noise value and
can be imported to the auto-adaptive background noise update
filter. If the number of uplink equivalent users is greater than this
threshold, the measured RTWP involves the power resulting
from user services and therefore cannot be considered as the
background noise or imported to the auto-adaptive background
noise update filter. Meanwhile, the RNC resets the automatic
background noise update status.
GUI Value Range:0~10
Unit:None
Actual Value Range:0~10
Default Value:0

BGNEqUserNumThd

BSC6910 ADD UCELLCAC
MOD UCELLCAC

WRFD020101
WRFD020102

Admission Control
Load Measurement

Meaning:Threshold for the number of equivalent users for the
automatic background noise update. When the "BGNOptSwitch"
parameter is set to OFF, the RNC checks the number of uplink
equivalent users. If the number of uplink equivalent users is less
than or equal to this threshold, the corresponding measured
uplink RTWP is considered as the background noise value and
can be imported to the auto-adaptive background noise update
filter. If the number of uplink equivalent users is greater than this
threshold, the measured RTWP involves the power resulting
from user services and therefore cannot be considered as the
background noise or imported to the auto-adaptive background
noise update filter. Meanwhile, the RNC resets the automatic
background noise update status.
GUI Value Range:0~10
Unit:None
Actual Value Range:0~10
Default Value:0

BGNULLoadThd

BSC6900 ADD UCELLCAC
MOD UCELLCAC

WRFD020101

Admission Control

Meaning:Uplink load threshold for updating the background
noise. When the "BGNOptSwitch" parameter is set to ON, the
RNC checks the total uplink service load. If the total uplink
service load is less than or equal to the value of this parameter,
the RNC uses the difference between the RTWP and the total
uplink service load as the current background noise to be
updated.

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Load Control Feature Parameter Description

Page 63 of 143

GUI Value Range:0~100
Unit:%
Actual Value Range:0~100
Default Value:10
BGNULLoadThd

BSC6910 ADD UCELLCAC
MOD UCELLCAC

WRFD020101

Admission Control

Meaning:Uplink load threshold for updating the background
noise. When the "BGNOptSwitch" parameter is set to ON, the
RNC checks the total uplink service load. If the total uplink
service load is less than or equal to the value of this parameter,
the RNC uses the difference between the RTWP and the total
uplink service load as the current background noise to be
updated.
GUI Value Range:0~100
Unit:%
Actual Value Range:0~100
Default Value:10

BgnAbnormalThd

BSC6900 ADD UCELLCAC
MOD UCELLCAC

WRFD020101
WRFD020102

Admission Control
Load Measurement

Meaning:Threshold for the abnormal background noise used in
the automatic background noise update algorithm. This
parameter is used to prevent excess fluctuation of the
background noise if the background noise provided by the auto
adaptive background noise update filter is abnormal. The RNC
does not update the background noise based on this parameter
when either of the following conditions is true: (1) The difference
between the background noise without being filtered and the
current background noise is greater than the abnormal RTWP
threshold. (2) The difference between the filtered background
noise and the configured value of the "BackgroundNoise"
parameter is greater than the abnormal RTWP threshold.
GUI Value Range:1~400
Unit:0.1dB
Actual Value Range:0.1~40
Default Value:100

BgnAbnormalThd

BSC6910 ADD UCELLCAC
MOD UCELLCAC

WRFD020101
WRFD020102

Admission Control
Load Measurement

Meaning:Threshold for the abnormal background noise used in
the automatic background noise update algorithm. This
parameter is used to prevent excess fluctuation of the
background noise if the background noise provided by the auto
adaptive background noise update filter is abnormal. The RNC
does not update the background noise based on this parameter
when either of the following conditions is true: (1) The difference
between the background noise without being filtered and the
current background noise is greater than the abnormal RTWP
threshold. (2) The difference between the filtered background
noise and the configured value of the "BackgroundNoise"
parameter is greater than the abnormal RTWP threshold.
GUI Value Range:1~400
Unit:0.1dB
Actual Value Range:0.1~40
Default Value:100

BgnUpdateThd

BSC6900 ADD UCELLCAC
MOD UCELLCAC

WRFD020101
WRFD020102

Admission Control
Load Measurement

Meaning:Threshold for updating the background noise. The
RNC decides to update the background noise of a cell only
when the difference between the background noise provided by
the automatic background noise update algorithm and the
current background noise is greater than this threshold. The
RNC sends the updated background noise of a cell to the
NodeB over the Iub interface.
GUI Value Range:1~100
Unit:0.1dBm
Actual Value Range:0.1~10
Default Value:5

BgnUpdateThd

BSC6910 ADD UCELLCAC
MOD UCELLCAC

WRFD020101
WRFD020102

Admission Control
Load Measurement

Meaning:Threshold for updating the background noise. The
RNC decides to update the background noise of a cell only
when the difference between the background noise provided by
the automatic background noise update algorithm and the
current background noise is greater than this threshold. The
RNC sends the updated background noise of a cell to the
NodeB over the Iub interface.
GUI Value Range:1~100
Unit:0.1dBm
Actual Value Range:0.1~10
Default Value:5

DrSwitch

BSC6900 SET UCORRMALGOSWITCH

WRFD01061112
WRFD020120
WRFD02040001
WRFD02040002
WRFD02040003
WRFD02040004

HSDPA DRD
Service Steering and
Load Sharing in RRC
Connection Setup
Intra System Direct
Retry
Inter System Direct
Retry
Inter System Redirect
Traffic Steering and
Load Sharing During
RAB Setup

Meaning:Direct retry switch group. 1. DR_RRC_DRD_SWITCH
(DRD switch for RRC connection): When the switch is on, DRD
and redirection is performed for RRC connection if retry is
required. 2. DR_RAB_SING_DRD_SWITCH(DRD switch for
single RAB): When the switch is on, DRD is performed for single
service if retry is required. 3. DR_RAB_COMB_DRD_SWITCH
(DRD switch for combine RAB): When the switch is on, DRD is
performed for combined services if retry is required. 4.
DR_INTER_RAT_DRD_SWITCH(INTER-RAT DRD switch):
When this switch is turned on, inter-RAT directed retry is
supported.
GUI Value Range:DR_RRC_DRD_SWITCH,
DR_RAB_SING_DRD_SWITCH,
DR_RAB_COMB_DRD_SWITCH,
DR_INTER_RAT_DRD_SWITCH
Unit:None
Actual Value Range:DR_RRC_DRD_SWITCH,
DR_RAB_SING_DRD_SWITCH,
DR_RAB_COMB_DRD_SWITCH,
DR_INTER_RAT_DRD_SWITCH,
Default Value:DR_RRC_DRD_SWITCH1&DR_RAB_SING_DRD_SWITCH1&DR_RAB_COMB_DRD_SWITCH0&DR_INTER_RAT_DRD_SWITCH-1

DrSwitch

BSC6910 SET UCORRMALGOSWITCH

WRFD-

HSDPA DRD

Meaning:Direct retry switch group. 1. DR_RRC_DRD_SWITCH

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Load Control Feature Parameter Description

PerfEnhanceSwitch

BSC6900 SET UCORRMPARA

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01061112
WRFD020120
WRFD02040001
WRFD02040002
WRFD02040003
WRFD02040004

Service Steering and
Load Sharing in RRC
Connection Setup
Intra System Direct
Retry
Inter System Direct
Retry
Inter System Redirect
Traffic Steering and
Load Sharing During
RAB Setup

(DRD switch for RRC connection): When the switch is on, DRD
and redirection is performed for RRC connection if retry is
required. 2. DR_RAB_SING_DRD_SWITCH(DRD switch for
single RAB): When the switch is on, DRD is performed for single
service if retry is required. 3. DR_RAB_COMB_DRD_SWITCH
(DRD switch for combine RAB): When the switch is on, DRD is
performed for combined services if retry is required. 4.
DR_INTER_RAT_DRD_SWITCH(INTER-RAT DRD switch):
When this switch is turned on, inter-RAT directed retry is
supported.
GUI Value Range:DR_RRC_DRD_SWITCH,
DR_RAB_SING_DRD_SWITCH,
DR_RAB_COMB_DRD_SWITCH,
DR_INTER_RAT_DRD_SWITCH
Unit:None
Actual Value Range:DR_RRC_DRD_SWITCH,
DR_RAB_SING_DRD_SWITCH,
DR_RAB_COMB_DRD_SWITCH,
DR_INTER_RAT_DRD_SWITCH,
Default Value:DR_RRC_DRD_SWITCH1&DR_RAB_SING_DRD_SWITCH1&DR_RAB_COMB_DRD_SWITCH0&DR_INTER_RAT_DRD_SWITCH-1

WRFD021104
WRFD010202
WRFD020400
WRFD01061004
WRFD02060501
WRFD020402
WRFD02040003
WRFD01061404
WRFD01061403

Emergency Call
UE State in
Connected Mode
(CELL-DCH
CELL-PCH
URA-PCH
CELL-FACH)
DRD Introduction
Package
HSDPA Power
Control
SRNS Relocation (UE
Not Involved)
Measurement Based
Direct Retry
Inter System Redirect
HSUPA 2ms/10ms
TTI Handover
HSUPA 2ms TTI

Meaning:1. PERFENH_AMR_SPEC_BR_SWITCH: When this
switch is turned on, the procedure specific to AMR service
establishment takes effect. 2.
PERFENH_AMR_TMPLT_SWITCH: When this switch is turned
on, the AMR template takes effect. 3.
PERFENH_SRB_TMPLT_SWITCH: When this switch is turned
on, the SRB template takes effect. 4.
PERFENH_OLPC_TMPLT_SWITCH: When this switch is turned
on, the OLPC template takes effect. 5.
PERFENH_AMR_SP_TMPLT_SWITCH: When this switch is
turned on, the AMR parameter template takes effect. 6.
PERFENH_INTRAFREQ_MC_TMPLT_SWITCH: When this
switch is turned on, the intra-frequency measurement control
template takes effect. 7.
PERFENH_INTERRAT_PENALTY_50_SWITCH: After a UE
fails to be handed over to a 2G cell during an inter-RAT
handover, the RNC forbids the UE to attempt a handover to the
2G cell in a certain period. When this switch is turned on, the
period is 50s. When this switch is turned off, the period is 30s.
PERFENH_SRB_OVER_HSUPA_TTI10_SWITCH: When this
switch is turned on, the uplink SRBs of HSUPA 10 ms nonconversational services are always carried on DCHs, and the
original parameter Type of Channel Preferably Carrying
Signaling RB is invalid. When this switch is turned off, SRBs for
HSUPA 10 ms non-conversational services can be carried on
HSUPA channels when the original parameter Type of Channel
Preferably Carrying Signaling RB is set to HSUPA or HSPA. The
switch is set to OFF by default. 9.
PERFENH_HSUPA_TTI2_ENHANCE_SWITCH: When this
switch is turned on, the single-user peak-rate improvement
algorithm of HSUPA 2 ms TTI is enabled. When this switch is
turned off, the algorithm is disabled. The switch is set to OFF by
default. 10. PERFENH_UU_P2D_CUC_OPT_SWITCH: When
this switch is turned on, the P2D cell update confirm message
simplification algorithm takes effect. When this switch is turned
off, the algorithm does not take effect. By default, this switch is
turned off. 11.
PERFENH_RL_RECFG_SIR_CONSIDER_SWITCH: This check
box controls whether the RNC considers the converged
SIRTarget value that is used before radio link reconfiguration in
outer loop power control performed after radio link
reconfiguration. If the check box is not selected, the RNC sends
the initial SIRTarget value used after radio link reconfiguration to
the NodeB.If the check box is selected, the RNC selects a more
appropriate value from the initial SIRTarget value used after
radio link reconfiguration and the converged SIRTarget value
used before radio link reconfiguration. Then the RNC sends the
selected value to the NodeB. Setting of this check box takes
effect only when the
PC_RL_RECFG_SIR_TARGET_CARRY_SWITCH check box is
selected. 12. PERFENH_RRC_REDIR_PROTECT_SWITCH:
When this switch is turned on, The mechanism to avoid endless
back-and-forth RRC-redirections takes effect. The switch is set
to OFF by default. 13. PERFENH_H2F_OPT_SWITCH: whether
to enable the optimized algorithm for HSPA UE state transition
from CELL_DCH to CELL_FACH (also referred to as H2F state
transition). When the switch is turned on, the optimized H2F
state transition algorithm is enabled, and event 4A measurement
of traffic volume or throughput is added to the state transition
procedure. The added event 4A measurement prevents an H2F
state transition when data is being transmitted. 14.
PERFENH_PSTRAFFIC_P2H_SWITCH: When the switch is
turned on and a CELL_PCH/URA_PCH-to-CELL_DCH (P2D for
short) state transition is triggered for a PS service, the PS
service can be set up on HSPA channels after the state
transition. When the switch is turned off, PS services can be set
up only on DCHs after a P2D state transition. This switch is
turned off by default. 15.
PERFENH_VIP_USER_PCHR_MR_SWITCH: When this switch
is turned on, VIP UEs report their transmit power to the RNC
when required and periodically measure signal quality of intrafrequency cells. In addition, these UEs measure the downlink
BLER, the NodeB measures the uplink SIR, and the RNC
records the measurement results. 16.
PERFENH_TX_INTERRUPT_AFT_TRIG_SWITCH: Switch for
including the Tx interruption after trigger IE in the uplink 4A
traffic volume measurement control message. When this switch
is turned on, the uplink 4A traffic volume measurement control
message from RNC includes the Tx interruption after trigger IE
for UEs that are in the CELL_FACH or enhanced CELL_FACH

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state and processing PS BE services. The value of this IE can
be changed by running the "SET UUESTATETRANS"
command. 17.
PERFENH_CELL_HSUPA_CAP_CHANGE_OPT_SWITCH: The
NodeB baseband board uses different processing specifications
for users with different uplink bearer services, for example,
HSUPA TTI 2 ms services, HSUPA TTI 10 ms services, and R99
services. When serving a large number of users, the system
cannot guarantee that all users can access the network with the
highest service bearer supported by UEs. This switch controls
whether the RNC allocates corresponding channels for new
users based on the cell capability reported through the NodeB
private interface. When this switch is turned on, the RNC
dynamically selects an appropriate uplink service bearer and
allocates corresponding channels for new users to maximize the
system capacity based on the actual NodeB processing
specifications. When this switch is turned off, the optimization
process is disabled. 18.
PERFENH_HSUPA_TTI_RECFG_PROC_OPT_SWITCH:
Whether to use the optimized TTI switching algorithm for BE
services When this switch is turned off, the optimized algorithm
does not take effect. The original mechanism is implemented.
When this switch is turned on, the optimized algorithm takes
effect. After HSUPA services are configured or reconfigured with
10 ms TTI due to network resource (admission CEs, RTWP,
consumed Iub bandwidth, or consumed CEs) congestion or
insufficient coverage, these UEs cannot change to use 2 ms TTI
if no data needs to be transmitted. 19.
PERFENH_DOWNLOAD_ENHANCE_SWITCH: Whether to
activate the algorithm for increasing the single-threaded
download rate. 20. PERFENH_OLPC_BLER_COEF_ADJUST:
Switch for adjusting the BLER coefficient specific to CS services
based on the best cell's uplink load status. When this switch is
turned on, the outer loop power control algorithm uses the target
BLER set by the OMU board if the best cell's uplink load status
is LDR or OLC. If the status is neither LDR nor OLC, this
algorithm uses this target BLER after being divided by five. 21.
PERFENH_EMG_AGPS_MC_DELAY_SWITCH: Whether to
enable the function of delaying the sending of an
RRC_MEAS_CTRL message containing AGPS information
when an emergency call is made. When this switch is turned on,
the RNC delays the sending of this message until the
emergency call is successfully set up. When this switch is turned
off, the RNC sends this message upon receiving a
LOCATION_REPORTING_CONTROL message from the CN.
22. PERFENH_MULTI_RLS_CQI_PARA_OPT_SWITCH:
Whether to enable a UE having multiple RLSs to use the value
of "CQIReF" and the value of "CQIFbCk" that are for UEs having
only one RLS. The two parameters can be set by running the
"SET UHSDPCCH" and "ADD UCELLHSDPCCH" commands.
When this switch is turned off, the UE does not use the values of
the two parameters that are for UEs having only one RLS. When
this switch is turned on, the UE uses the values of the two
parameters that are for UEs having only one RLS. 23.
PERFENH_RELOC_IE_CALCTIMEFORCIP_SWITCH: Whether
to enable a RELOCATION REQUIRED message to contain the
IE calculationTimeForCiphering. When this switch is turned on,
static relocation request messages contain the IE
calculationTimeForCiphering. 24.
PERFENH_IS_TIMEOUT_TRIG_DRD_SWITCH: Whether to
trigger the DRD procedure and channel switchover from E-DCH
or HS-DSCH to DCH when messages transmitted over the Uu
and Iub interfaces do not arrive in time. When this switch is
turned off, the DRD procedure and channel switchover from E
DCH or HS-DSCH to DCH are not triggered if messages
transmitted over the Uu and Iub interfaces do not arrive in time.
When this switch is turned on, the DRD procedure and channel
switchover from E-DCH or HS-DSCH to DCH are triggered if
messages transmitted over the Uu and Iub interfaces do not
arrive in time. 25.
PERFENH_CELL_CACLOAD_BROADCAST_AMEND: Whether
to consider CE or code resource usage when determining the
resource status of a cell whose serving boards or CP subsystems are different from those of its neighboring cells. When
this switch is turned on, the RNC determines the resource status
of such a cell based on power, CE, and code resource usage. If
power, CE, or code resources in a cell become congested, the
RNC determines that the cell experiences resource congestion.
When this switch is turned off, the RNC determines the resource
status of such a cell based on power resource usage only. 26.
PERFENH_MBDR_TARCELLSEL_OPT_SWITCH: When this
switch is turned on, candidate cells are ranked by
"InterFreqMeasQuantity" (in the "ADD
UCELLMBDRINTERFREQ" command) for MBDR, and the cell
with the best signal quality is selected as the target cell. When
this switch is turned off, candidate cells are not ranked by
InterFreqMeasQuantity for MBDR. 27.
PERFENH_RRC_DRD_PREADMISSION_SWITCH: Whether
the RNC makes a pre-admission decision on intra-RAT DRDs or
redirections during an RRC connection setup. When this switch
is turned on, the RNC makes a pre-admission decision on intra
RAT DRDs or redirections during an RRC connection setup.
When this switch is turned off, the RNC does not make a preadmission decision on intra-RAT DRDs or redirections during an
RRC connection setup. 28.
PERFENH_RRC_WEAK_REDIR_SWITCH: Whether to activate
the RRC redirection in weak coverage algorithm. When this
switch is turned on, UEs located in weak coverage are
redirected to the neighboring GSM cell through RRC redirection.
When this switch is turned off, this algorithm is disabled. 29.
PERFENH_L2U_CSFB_COMMCALL_SWITCH: Whether to
preferentially admit UEs processing PS services who are
involved in CS fallbacks. When this switch is turned on, the non
real-time PS services of the UE involved in a CS fallback are
switched to a DCH with a data rate of 8 kbit/s before the access

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to the UMTS network. For the real-time PS services, the UE
follows the standard access procedure. If the access fails and
the "PreemptAlgoSwitch" parameter under the "SET
UQUEUEPREEMPT" command is turned on, the UE can
preempt other UEs' resources. If this switch is turned off, the UE
has to try to access the network as a common PS UE. 30.
PERFENH_DLBLINDDETECT_WHEN_ONLYSRBONDCH: This
parameter controls whether to enable blind detection for the
HSDPA user-associated single-signaling R99 channel. When
the switch specified by this parameter is turned on, blind
detection is enabled. 31.
PERFENH_DLBLINDDETECT_WHEN_SRBAMRONDCH: This
parameter controls whether to enable blind detection for the
HSDPA user-associated AMR R99 channel. When the switch
specified by this parameter is turned on, blind detection is
enabled if the HSDPA service has been set up and there are
signaling and AMR traffic carried on the R99 channel. 32.
PERFENH_R6_HSUPA_TTI_10MSTO2MS_LIMIT: Whether to
allow R6 UEs to switch from HSUPA 10 ms to 2 ms TTI. When
the switch is turned on, this switching is not allowed for R6 UEs.
When the switch is turned off, this limit does not work. This
parameter is an advanced parameter. To modify this parameter,
contact Huawei Customer Service Center for technical support.
GUI Value Range:PERFENH_AMR_SPEC_BR_SWITCH,
PERFENH_AMR_TMPLT_SWITCH,
PERFENH_SRB_TMPLT_SWITCH,
PERFENH_OLPC_TMPLT_SWITCH,
PERFENH_AMR_SP_TMPLT_SWITCH,
PERFENH_INTRAFREQ_MC_TMPLT_SWITCH,
PERFENH_INTERRAT_PENALTY_50_SWITCH,
PERFENH_SRB_OVER_HSUPA_TTI10_SWITCH,
PERFENH_HSUPA_TTI2_ENHANCE_SWITCH,
PERFENH_UU_P2D_CUC_OPT_SWITCH,
PERFENH_RL_RECFG_SIR_CONSIDER_SWITCH,
PERFENH_RRC_REDIR_PROTECT_SWITCH,
PERFENH_H2F_OPT_SWITCH,
PERFENH_PSTRAFFIC_P2H_SWITCH,
PERFENH_VIP_USER_PCHR_MR_SWITCH,
PERFENH_TX_INTERRUPT_AFT_TRIG_SWITCH,
PERFENH_CELL_HSUPA_CAP_CHANGE_OPT_SWITCH,
PERFENH_HSUPA_TTI_RECFG_PROC_OPT_SWITCH,
PERFENH_DOWNLOAD_ENHANCE_SWITCH,
PERFENH_OLPC_BLER_COEF_ADJUST,
PERFENH_EMG_AGPS_MC_DELAY_SWITCH,
PERFENH_MULTI_RLS_CQI_PARA_OPT_SWITCH,
PERFENH_RELOC_IE_CALCTIMEFORCIP_SWITCH,
PERFENH_IS_TIMEOUT_TRIG_DRD_SWITCH,
PERFENH_CELL_CACLOAD_BROADCAST_AMEND,
PERFENH_MBDR_TARCELLSEL_OPT_SWITCH,
PERFENH_RRC_DRD_PREADMISSION_SWITCH,
PERFENH_RRC_WEAK_REDIR_SWITCH,
PERFENH_L2U_CSFB_COMMCALL_SWITCH,
PERFENH_DLBLINDDETECT_WHEN_ONLYSRBONDCH,
PERFENH_DLBLINDDETECT_WHEN_SRBAMRONDCH,
PERFENH_R6_HSUPA_TTI_10MSTO2MS_LIMIT
Unit:None
Actual Value Range:PERFENH_AMR_SPEC_BR_SWITCH,
PERFENH_AMR_TMPLT_SWITCH,
PERFENH_SRB_TMPLT_SWITCH,
PERFENH_OLPC_TMPLT_SWITCH,
PERFENH_AMR_SP_TMPLT_SWITCH,
PERFENH_INTRAFREQ_MC_TMPLT_SWITCH,
PERFENH_INTERRAT_PENALTY_50_SWITCH,
PERFENH_SRB_OVER_HSUPA_TTI10_SWITCH,
PERFENH_HSUPA_TTI2_ENHANCE_SWITCH,
PERFENH_UU_P2D_CUC_OPT_SWITCH,
PERFENH_RL_RECFG_SIR_CONSIDER_SWITCH,
PERFENH_RRC_REDIR_PROTECT_SWITCH,
PERFENH_H2F_OPT_SWITCH,
PERFENH_PSTRAFFIC_P2H_SWITCH,
PERFENH_VIP_USER_PCHR_MR_SWITCH,
PERFENH_TX_INTERRUPT_AFT_TRIG_SWITCH,
PERFENH_CELL_HSUPA_CAP_CHANGE_OPT_SWITCH,
PERFENH_HSUPA_TTI_RECFG_PROC_OPT_SWITCH,
PERFENH_DOWNLOAD_ENHANCE_SWITCH,
PERFENH_OLPC_BLER_COEF_ADJUST,
PERFENH_EMG_AGPS_MC_DELAY_SWITCH,
PERFENH_MULTI_RLS_CQI_PARA_OPT_SWITCH,
PERFENH_RELOC_IE_CALCTIMEFORCIP_SWITCH,
PERFENH_IS_TIMEOUT_TRIG_DRD_SWITCH,
PERFENH_CELL_CACLOAD_BROADCAST_AMEND,
PERFENH_MBDR_TARCELLSEL_OPT_SWITCH,
PERFENH_RRC_DRD_PREADMISSION_SWITCH,
PERFENH_RRC_WEAK_REDIR_SWITCH,
PERFENH_L2U_CSFB_COMMCALL_SWITCH,
PERFENH_DLBLINDDETECT_WHEN_ONLYSRBONDCH,
PERFENH_DLBLINDDETECT_WHEN_SRBAMRONDCH,
PERFENH_R6_HSUPA_TTI_10MSTO2MS_LIMIT
Default Value:PERFENH_AMR_SPEC_BR_SWITCH1&PERFENH_AMR_TMPLT_SWITCH1&PERFENH_SRB_TMPLT_SWITCH1&PERFENH_OLPC_TMPLT_SWITCH1&PERFENH_AMR_SP_TMPLT_SWITCH1&PERFENH_INTRAFREQ_MC_TMPLT_SWITCH1&PERFENH_INTERRAT_PENALTY_50_SWITCH1&PERFENH_SRB_OVER_HSUPA_TTI10_SWITCH0&PERFENH_HSUPA_TTI2_ENHANCE_SWITCH0&PERFENH_UU_P2D_CUC_OPT_SWITCH0&PERFENH_RL_RECFG_SIR_CONSIDER_SWITCH1&PERFENH_RRC_REDIR_PROTECT_SWITCH0&PERFENH_H2F_OPT_SWITCH0&PERFENH_PSTRAFFIC_P2H_SWITCH0&PERFENH_VIP_USER_PCHR_MR_SWITCH0&PERFENH_TX_INTERRUPT_AFT_TRIG_SWITCH-

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0&PERFENH_HSUPA_TTI_RECFG_PROC_OPT_SWITCH0&PERFENH_DOWNLOAD_ENHANCE_SWITCH0&PERFENH_OLPC_BLER_COEF_ADJUST1&PERFENH_EMG_AGPS_MC_DELAY_SWITCH0&PERFENH_MULTI_RLS_CQI_PARA_OPT_SWITCH0&PERFENH_RELOC_IE_CALCTIMEFORCIP_SWITCH0&PERFENH_IS_TIMEOUT_TRIG_DRD_SWITCH0&PERFENH_CELL_CACLOAD_BROADCAST_AMEND1&PERFENH_MBDR_TARCELLSEL_OPT_SWITCH0&PERFENH_RRC_DRD_PREADMISSION_SWITCH0&PERFENH_RRC_WEAK_REDIR_SWITCH0&PERFENH_L2U_CSFB_COMMCALL_SWITCH0&PERFENH_DLBLINDDETECT_WHEN_ONLYSRBONDCH
0&PERFENH_DLBLINDDETECT_WHEN_SRBAMRONDCH0&PERFENH_R6_HSUPA_TTI_10MSTO2MS_LIMIT0&PERFENH_CELL_HSUPA_CAP_CHANGE_OPT_SWITCH
PerfEnhanceSwitch

BSC6910 SET UCORRMPARA

WRFD021104
WRFD010202
WRFD020400
WRFD01061004
WRFD02060501
WRFD020402
WRFD02040003
WRFD01061404
WRFD01061403

Emergency Call
UE State in
Connected Mode
(CELL-DCH
CELL-PCH
URA-PCH
CELL-FACH)
DRD Introduction
Package
HSDPA Power
Control
SRNS Relocation (UE
Not Involved)
Measurement Based
Direct Retry
Inter System Redirect
HSUPA 2ms/10ms
TTI Handover
HSUPA 2ms TTI

Meaning:1. PERFENH_AMR_SPEC_BR_SWITCH: When this
switch is turned on, the procedure specific to AMR service
establishment takes effect. 2.
PERFENH_AMR_TMPLT_SWITCH: When this switch is turned
on, the AMR template takes effect. 3.
PERFENH_SRB_TMPLT_SWITCH: When this switch is turned
on, the SRB template takes effect. 4.
PERFENH_OLPC_TMPLT_SWITCH: When this switch is turned
on, the OLPC template takes effect. 5.
PERFENH_AMR_SP_TMPLT_SWITCH: When this switch is
turned on, the AMR parameter template takes effect. 6.
PERFENH_INTRAFREQ_MC_TMPLT_SWITCH: When this
switch is turned on, the intra-frequency measurement control
template takes effect. 7.
PERFENH_INTERRAT_PENALTY_50_SWITCH: After a UE
fails to be handed over to a 2G cell during an inter-RAT
handover, the RNC forbids the UE to attempt a handover to the
2G cell in a certain period. When this switch is turned on, the
period is 50s. When this switch is turned off, the period is 30s.
PERFENH_SRB_OVER_HSUPA_TTI10_SWITCH: When this
switch is turned on, the uplink SRBs of HSUPA 10 ms nonconversational services are always carried on DCHs, and the
original parameter Type of Channel Preferably Carrying
Signaling RB is invalid. When this switch is turned off, SRBs for
HSUPA 10 ms non-conversational services can be carried on
HSUPA channels when the original parameter Type of Channel
Preferably Carrying Signaling RB is set to HSUPA or HSPA. The
switch is set to OFF by default. 9.
PERFENH_HSUPA_TTI2_ENHANCE_SWITCH: When this
switch is turned on, the single-user peak-rate improvement
algorithm of HSUPA 2 ms TTI is enabled. When this switch is
turned off, the algorithm is disabled. The switch is set to OFF by
default. 10. PERFENH_UU_P2D_CUC_OPT_SWITCH: When
this switch is turned on, the P2D cell update confirm message
simplification algorithm takes effect. When this switch is turned
off, the algorithm does not take effect. By default, this switch is
turned off. 11.
PERFENH_RL_RECFG_SIR_CONSIDER_SWITCH: This check
box controls whether the RNC considers the converged
SIRTarget value that is used before radio link reconfiguration in
outer loop power control performed after radio link
reconfiguration. If the check box is not selected, the RNC sends
the initial SIRTarget value used after radio link reconfiguration to
the NodeB.If the check box is selected, the RNC selects a more
appropriate value from the initial SIRTarget value used after
radio link reconfiguration and the converged SIRTarget value
used before radio link reconfiguration. Then the RNC sends the
selected value to the NodeB. Setting of this check box takes
effect only when the
PC_RL_RECFG_SIR_TARGET_CARRY_SWITCH check box is
selected. 12. PERFENH_RRC_REDIR_PROTECT_SWITCH:
When this switch is turned on, The mechanism to avoid endless
back-and-forth RRC-redirections takes effect. The switch is set
to OFF by default. 13. PERFENH_H2F_OPT_SWITCH: whether
to enable the optimized algorithm for HSPA UE state transition
from CELL_DCH to CELL_FACH (also referred to as H2F state
transition). When the switch is turned on, the optimized H2F
state transition algorithm is enabled, and event 4A measurement
of traffic volume or throughput is added to the state transition
procedure. The added event 4A measurement prevents an H2F
state transition when data is being transmitted. 14.
PERFENH_PSTRAFFIC_P2H_SWITCH: When the switch is
turned on and a CELL_PCH/URA_PCH-to-CELL_DCH (P2D for
short) state transition is triggered for a PS service, the PS
service can be set up on HSPA channels after the state
transition. When the switch is turned off, PS services can be set
up only on DCHs after a P2D state transition. This switch is
turned off by default. 15.
PERFENH_VIP_USER_PCHR_MR_SWITCH: When this switch
is turned on, VIP UEs report their transmit power to the RNC
when required and periodically measure signal quality of intrafrequency cells. In addition, these UEs measure the downlink
BLER, the NodeB measures the uplink SIR, and the RNC
records the measurement results. 16.
PERFENH_TX_INTERRUPT_AFT_TRIG_SWITCH: Switch for
including the Tx interruption after trigger IE in the uplink 4A
traffic volume measurement control message. When this switch
is turned on, the uplink 4A traffic volume measurement control
message from RNC includes the Tx interruption after trigger IE
for UEs that are in the CELL_FACH or enhanced CELL_FACH
state and processing PS BE services. The value of this IE can
be changed by running the "SET UUESTATETRANS"
command. 17.
PERFENH_CELL_HSUPA_CAP_CHANGE_OPT_SWITCH: The
NodeB baseband board uses different processing specifications
for users with different uplink bearer services, for example,
HSUPA TTI 2 ms services, HSUPA TTI 10 ms services, and R99
services. When serving a large number of users, the system

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cannot guarantee that all users can access the network with the
highest service bearer supported by UEs. This switch controls
whether the RNC allocates corresponding channels for new
users based on the cell capability reported through the NodeB
private interface. When this switch is turned on, the RNC
dynamically selects an appropriate uplink service bearer and
allocates corresponding channels for new users to maximize the
system capacity based on the actual NodeB processing
specifications. When this switch is turned off, the optimization
process is disabled. 18.
PERFENH_HSUPA_TTI_RECFG_PROC_OPT_SWITCH:
Whether to use the optimized TTI switching algorithm for BE
services When this switch is turned off, the optimized algorithm
does not take effect. The original mechanism is implemented.
When this switch is turned on, the optimized algorithm takes
effect. After HSUPA services are configured or reconfigured with
10 ms TTI due to network resource (admission CEs, RTWP,
consumed Iub bandwidth, or consumed CEs) congestion or
insufficient coverage, these UEs cannot change to use 2 ms TTI
if no data needs to be transmitted. 19.
PERFENH_DOWNLOAD_ENHANCE_SWITCH: Whether to
activate the algorithm for increasing the single-threaded
download rate. 20. PERFENH_OLPC_BLER_COEF_ADJUST:
Switch for adjusting the BLER coefficient specific to CS services
based on the best cell's uplink load status. When this switch is
turned on, the outer loop power control algorithm uses the target
BLER set by the OMU board if the best cell's uplink load status
is LDR or OLC. If the status is neither LDR nor OLC, this
algorithm uses this target BLER after being divided by five. 21.
PERFENH_EMG_AGPS_MC_DELAY_SWITCH: Whether to
enable the function of delaying the sending of an
RRC_MEAS_CTRL message containing AGPS information
when an emergency call is made. When this switch is turned on,
the RNC delays the sending of this message until the
emergency call is successfully set up. When this switch is turned
off, the RNC sends this message upon receiving a
LOCATION_REPORTING_CONTROL message from the CN.
22. PERFENH_MULTI_RLS_CQI_PARA_OPT_SWITCH:
Whether to enable a UE having multiple RLSs to use the value
of "CQIReF" and the value of "CQIFbCk" that are for UEs having
only one RLS. The two parameters can be set by running the
"SET UHSDPCCH" and "ADD UCELLHSDPCCH" commands.
When this switch is turned off, the UE does not use the values of
the two parameters that are for UEs having only one RLS. When
this switch is turned on, the UE uses the values of the two
parameters that are for UEs having only one RLS. 23.
PERFENH_RELOC_IE_CALCTIMEFORCIP_SWITCH: Whether
to enable a RELOCATION REQUIRED message to contain the
IE calculationTimeForCiphering. When this switch is turned on,
static relocation request messages contain the IE
calculationTimeForCiphering. 24.
PERFENH_IS_TIMEOUT_TRIG_DRD_SWITCH: Whether to
trigger the DRD procedure and channel switchover from E-DCH
or HS-DSCH to DCH when messages transmitted over the Uu
and Iub interfaces do not arrive in time. When this switch is
turned off, the DRD procedure and channel switchover from E
DCH or HS-DSCH to DCH are not triggered if messages
transmitted over the Uu and Iub interfaces do not arrive in time.
When this switch is turned on, the DRD procedure and channel
switchover from E-DCH or HS-DSCH to DCH are triggered if
messages transmitted over the Uu and Iub interfaces do not
arrive in time. 25.
PERFENH_CELL_CACLOAD_BROADCAST_AMEND: Whether
to consider CE or code resource usage when determining the
resource status of a cell whose serving boards or CP subsystems are different from those of its neighboring cells. When
this switch is turned on, the RNC determines the resource status
of such a cell based on power, CE, and code resource usage. If
power, CE, or code resources in a cell become congested, the
RNC determines that the cell experiences resource congestion.
When this switch is turned off, the RNC determines the resource
status of such a cell based on power resource usage only. 26.
PERFENH_MBDR_TARCELLSEL_OPT_SWITCH: When this
switch is turned on, candidate cells are ranked by
"InterFreqMeasQuantity" (in the "ADD
UCELLMBDRINTERFREQ" command) for MBDR, and the cell
with the best signal quality is selected as the target cell. When
this switch is turned off, candidate cells are not ranked by
InterFreqMeasQuantity for MBDR. 27.
PERFENH_RRC_DRD_PREADMISSION_SWITCH: Whether
the RNC makes a pre-admission decision on intra-RAT DRDs or
redirections during an RRC connection setup. When this switch
is turned on, the RNC makes a pre-admission decision on intra
RAT DRDs or redirections during an RRC connection setup.
When this switch is turned off, the RNC does not make a preadmission decision on intra-RAT DRDs or redirections during an
RRC connection setup. 28.
PERFENH_RRC_WEAK_REDIR_SWITCH: Whether to activate
the RRC redirection in weak coverage algorithm. When this
switch is turned on, UEs located in weak coverage are
redirected to the neighboring GSM cell through RRC redirection.
When this switch is turned off, this algorithm is disabled. 29.
PERFENH_L2U_CSFB_COMMCALL_SWITCH: Whether to
preferentially admit UEs processing PS services who are
involved in CS fallbacks. When this switch is turned on, the non
real-time PS services of the UE involved in a CS fallback are
switched to a DCH with a data rate of 8 kbit/s before the access
to the UMTS network. For the real-time PS services, the UE
follows the standard access procedure. If the access fails and
the "PreemptAlgoSwitch" parameter under the "SET
UQUEUEPREEMPT" command is turned on, the UE can
preempt other UEs' resources. If this switch is turned off, the UE
has to try to access the network as a common PS UE. 30.
PERFENH_DLBLINDDETECT_WHEN_ONLYSRBONDCH: This
parameter controls whether to enable blind detection for the

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HSDPA user-associated single-signaling R99 channel. When
the switch specified by this parameter is turned on, blind
detection is enabled. 31.
PERFENH_DLBLINDDETECT_WHEN_SRBAMRONDCH: This
parameter controls whether to enable blind detection for the
HSDPA user-associated AMR R99 channel. When the switch
specified by this parameter is turned on, blind detection is
enabled if the HSDPA service has been set up and there are
signaling and AMR traffic carried on the R99 channel. 32.
PERFENH_R6_HSUPA_TTI_10MSTO2MS_LIMIT: Whether to
allow R6 UEs to switch from HSUPA 10 ms to 2 ms TTI. When
the switch is turned on, this switching is not allowed for R6 UEs.
When the switch is turned off, this limit does not work. This
parameter is an advanced parameter. To modify this parameter,
contact Huawei Customer Service Center for technical support.
GUI Value Range:PERFENH_AMR_SPEC_BR_SWITCH,
PERFENH_AMR_TMPLT_SWITCH,
PERFENH_SRB_TMPLT_SWITCH,
PERFENH_OLPC_TMPLT_SWITCH,
PERFENH_AMR_SP_TMPLT_SWITCH,
PERFENH_INTRAFREQ_MC_TMPLT_SWITCH,
PERFENH_INTERRAT_PENALTY_50_SWITCH,
PERFENH_SRB_OVER_HSUPA_TTI10_SWITCH,
PERFENH_HSUPA_TTI2_ENHANCE_SWITCH,
PERFENH_UU_P2D_CUC_OPT_SWITCH,
PERFENH_RL_RECFG_SIR_CONSIDER_SWITCH,
PERFENH_RRC_REDIR_PROTECT_SWITCH,
PERFENH_H2F_OPT_SWITCH,
PERFENH_PSTRAFFIC_P2H_SWITCH,
PERFENH_VIP_USER_PCHR_MR_SWITCH,
PERFENH_TX_INTERRUPT_AFT_TRIG_SWITCH,
PERFENH_CELL_HSUPA_CAP_CHANGE_OPT_SWITCH,
PERFENH_HSUPA_TTI_RECFG_PROC_OPT_SWITCH,
PERFENH_DOWNLOAD_ENHANCE_SWITCH,
PERFENH_OLPC_BLER_COEF_ADJUST,
PERFENH_EMG_AGPS_MC_DELAY_SWITCH,
PERFENH_MULTI_RLS_CQI_PARA_OPT_SWITCH,
PERFENH_RELOC_IE_CALCTIMEFORCIP_SWITCH,
PERFENH_IS_TIMEOUT_TRIG_DRD_SWITCH,
PERFENH_CELL_CACLOAD_BROADCAST_AMEND,
PERFENH_MBDR_TARCELLSEL_OPT_SWITCH,
PERFENH_RRC_DRD_PREADMISSION_SWITCH,
PERFENH_RRC_WEAK_REDIR_SWITCH,
PERFENH_L2U_CSFB_COMMCALL_SWITCH,
PERFENH_DLBLINDDETECT_WHEN_ONLYSRBONDCH,
PERFENH_DLBLINDDETECT_WHEN_SRBAMRONDCH,
PERFENH_R6_HSUPA_TTI_10MSTO2MS_LIMIT
Unit:None
Actual Value Range:PERFENH_AMR_SPEC_BR_SWITCH,
PERFENH_AMR_TMPLT_SWITCH,
PERFENH_SRB_TMPLT_SWITCH,
PERFENH_OLPC_TMPLT_SWITCH,
PERFENH_AMR_SP_TMPLT_SWITCH,
PERFENH_INTRAFREQ_MC_TMPLT_SWITCH,
PERFENH_INTERRAT_PENALTY_50_SWITCH,
PERFENH_SRB_OVER_HSUPA_TTI10_SWITCH,
PERFENH_HSUPA_TTI2_ENHANCE_SWITCH,
PERFENH_UU_P2D_CUC_OPT_SWITCH,
PERFENH_RL_RECFG_SIR_CONSIDER_SWITCH,
PERFENH_RRC_REDIR_PROTECT_SWITCH,
PERFENH_H2F_OPT_SWITCH,
PERFENH_PSTRAFFIC_P2H_SWITCH,
PERFENH_VIP_USER_PCHR_MR_SWITCH,
PERFENH_TX_INTERRUPT_AFT_TRIG_SWITCH,
PERFENH_CELL_HSUPA_CAP_CHANGE_OPT_SWITCH,
PERFENH_HSUPA_TTI_RECFG_PROC_OPT_SWITCH,
PERFENH_DOWNLOAD_ENHANCE_SWITCH,
PERFENH_OLPC_BLER_COEF_ADJUST,
PERFENH_EMG_AGPS_MC_DELAY_SWITCH,
PERFENH_MULTI_RLS_CQI_PARA_OPT_SWITCH,
PERFENH_RELOC_IE_CALCTIMEFORCIP_SWITCH,
PERFENH_IS_TIMEOUT_TRIG_DRD_SWITCH,
PERFENH_CELL_CACLOAD_BROADCAST_AMEND,
PERFENH_MBDR_TARCELLSEL_OPT_SWITCH,
PERFENH_RRC_DRD_PREADMISSION_SWITCH,
PERFENH_RRC_WEAK_REDIR_SWITCH,
PERFENH_L2U_CSFB_COMMCALL_SWITCH,
PERFENH_DLBLINDDETECT_WHEN_ONLYSRBONDCH,
PERFENH_DLBLINDDETECT_WHEN_SRBAMRONDCH,
PERFENH_R6_HSUPA_TTI_10MSTO2MS_LIMIT
Default Value:PERFENH_AMR_SPEC_BR_SWITCH1&PERFENH_AMR_TMPLT_SWITCH1&PERFENH_SRB_TMPLT_SWITCH1&PERFENH_OLPC_TMPLT_SWITCH1&PERFENH_AMR_SP_TMPLT_SWITCH1&PERFENH_INTRAFREQ_MC_TMPLT_SWITCH1&PERFENH_INTERRAT_PENALTY_50_SWITCH1&PERFENH_SRB_OVER_HSUPA_TTI10_SWITCH0&PERFENH_HSUPA_TTI2_ENHANCE_SWITCH0&PERFENH_UU_P2D_CUC_OPT_SWITCH0&PERFENH_RL_RECFG_SIR_CONSIDER_SWITCH1&PERFENH_RRC_REDIR_PROTECT_SWITCH0&PERFENH_H2F_OPT_SWITCH0&PERFENH_PSTRAFFIC_P2H_SWITCH0&PERFENH_VIP_USER_PCHR_MR_SWITCH0&PERFENH_TX_INTERRUPT_AFT_TRIG_SWITCH0&PERFENH_HSUPA_TTI_RECFG_PROC_OPT_SWITCH0&PERFENH_DOWNLOAD_ENHANCE_SWITCH0&PERFENH_OLPC_BLER_COEF_ADJUST1&PERFENH_EMG_AGPS_MC_DELAY_SWITCH0&PERFENH_MULTI_RLS_CQI_PARA_OPT_SWITCH0&PERFENH_RELOC_IE_CALCTIMEFORCIP_SWITCH0&PERFENH_IS_TIMEOUT_TRIG_DRD_SWITCH0&PERFENH_CELL_CACLOAD_BROADCAST_AMEND-

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1&PERFENH_MBDR_TARCELLSEL_OPT_SWITCH0&PERFENH_RRC_DRD_PREADMISSION_SWITCH0&PERFENH_RRC_WEAK_REDIR_SWITCH0&PERFENH_L2U_CSFB_COMMCALL_SWITCH0&PERFENH_DLBLINDDETECT_WHEN_ONLYSRBONDCH
0&PERFENH_DLBLINDDETECT_WHEN_SRBAMRONDCH0&PERFENH_R6_HSUPA_TTI_10MSTO2MS_LIMIT0&PERFENH_CELL_HSUPA_CAP_CHANGE_OPT_SWITCH
WeakCovRrcRedirEcNoThs

BSC6900 SET UFRC

WRFDInter System Redirect Meaning:The cell signal quality is indicated by the Ec/No
02040003
reported by UEs in the cell. If the value of Ec/No is lower than
the threshold, the cell signal quality is poor, and the UEs are
redirected to the neighboring GSM cell when the
"PERFENH_RRC_WEAK_REDIR_SWITCH" parameter in the
"SET UCORRMPARA" command is set to ON.
GUI Value Range:0~49
Unit:0.5dB
Actual Value Range:-24.5~0 Actual Value = (GUI Value - 49
(offset)) x 0.5.
Default Value:13

WeakCovRrcRedirEcNoThs

BSC6910 SET UFRC

WRFDInter System Redirect Meaning:The cell signal quality is indicated by the Ec/No
02040003
reported by UEs in the cell. If the value of Ec/No is lower than
the threshold, the cell signal quality is poor, and the UEs are
redirected to the neighboring GSM cell when the
"PERFENH_RRC_WEAK_REDIR_SWITCH" parameter in the
"SET UCORRMPARA" command is set to ON.
GUI Value Range:0~49
Unit:0.5dB
Actual Value Range:-24.5~0 Actual Value = (GUI Value - 49
(offset)) x 0.5.
Default Value:13

RedirSwitch

BSC6900 ADD
WRFDUCELLDISTANCEREDIRECTION 020401
MOD
UCELLDISTANCEREDIRECTION

Inter-RAT Redirection Meaning:Whether the distance-based inter-RAT RRC redirection
Based on Distance
algorithm takes effect. If this switch is turned on, the RNC
enables the distance-based inter-RAT RRC redirection algorithm
during the access of AMR users. If the distance between an
AMR user and the NodeB is greater than the value of
"DelayThs", the RNC redirects the AMR user to a GSM cell
through inter-RAT redirections at a certain probability. If this
switch is turned off, the distance-based inter-RAT RRC
redirection algorithm is invalid.
GUI Value Range:OFF, ON
Unit:None
Actual Value Range:OFF, ON
Default Value:OFF

RedirSwitch

BSC6910 ADD
WRFDUCELLDISTANCEREDIRECTION 020401
MOD
UCELLDISTANCEREDIRECTION

Inter-RAT Redirection Meaning:Whether the distance-based inter-RAT RRC redirection
Based on Distance
algorithm takes effect. If this switch is turned on, the RNC
enables the distance-based inter-RAT RRC redirection algorithm
during the access of AMR users. If the distance between an
AMR user and the NodeB is greater than the value of
"DelayThs", the RNC redirects the AMR user to a GSM cell
through inter-RAT redirections at a certain probability. If this
switch is turned off, the distance-based inter-RAT RRC
redirection algorithm is invalid.
GUI Value Range:OFF, ON
Unit:None
Actual Value Range:OFF, ON
Default Value:OFF

DelayThs

BSC6900 ADD
WRFDUCELLDISTANCEREDIRECTION 020401
MOD
UCELLDISTANCEREDIRECTION

Inter-RAT Redirection Meaning:Propagation delay threshold for the distance-based
Based on Distance
inter-RAT redirection algorithm. When the propagation delay
between a UE and the NodeB exceeds this threshold, the RNC
activates this algorithm to redirect the UE. For details about the
parameter, see 3GPP TS 25.433. The specifications stipulate
the following: 1TP = 3chips.
GUI Value Range:0~255
Unit:3chip
Actual Value Range:0~765
Default Value:255

DelayThs

BSC6910 ADD
WRFDUCELLDISTANCEREDIRECTION 020401
MOD
UCELLDISTANCEREDIRECTION

Inter-RAT Redirection Meaning:Propagation delay threshold for the distance-based
Based on Distance
inter-RAT redirection algorithm. When the propagation delay
between a UE and the NodeB exceeds this threshold, the RNC
activates this algorithm to redirect the UE. For details about the
parameter, see 3GPP TS 25.433. The specifications stipulate
the following: 1TP = 3chips.
GUI Value Range:0~255
Unit:3chip
Actual Value Range:0~765
Default Value:255

RedirFactorOfNorm

BSC6900 ADD
WRFDUCELLDISTANCEREDIRECTION 020401
MOD
UCELLDISTANCEREDIRECTION

Inter-RAT Redirection Meaning:Inter-RAT redirection scale factor when the load of the
Based on Distance
target cell is normal. When the cell load is normal, the RNC
calculates the probability at which UEs are redirected to a GSM
cell during distance-based inter-RAT RRC redirections. If this
parameter is set to 0, admitted users do not perform distancebased inter-RAT RRC redirections when the cell load is normal.
GUI Value Range:0~100
Unit:%
Actual Value Range:0~100
Default Value:0

RedirFactorOfNorm

BSC6910 ADD
WRFDUCELLDISTANCEREDIRECTION 020401
MOD
UCELLDISTANCEREDIRECTION

Inter-RAT Redirection Meaning:Inter-RAT redirection scale factor when the load of the
Based on Distance
target cell is normal. When the cell load is normal, the RNC
calculates the probability at which UEs are redirected to a GSM
cell during distance-based inter-RAT RRC redirections. If this
parameter is set to 0, admitted users do not perform distancebased inter-RAT RRC redirections when the cell load is normal.
GUI Value Range:0~100

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Load Control Feature Parameter Description

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Unit:%
Actual Value Range:0~100
Default Value:0
RedirFactorOfLDR

BSC6900 ADD
WRFDUCELLDISTANCEREDIRECTION 020401
MOD
UCELLDISTANCEREDIRECTION

Inter-RAT Redirection Meaning:Inter-RAT redirection scale factor when the target cell
Based on Distance
is congested. When the cell enters the LDR or OLC state, the
RNC calculates the probability at which UEs are redirected to a
GSM cell during distance-based inter-RAT RRC redirections. If
this parameter is set to 0, admitted users do not perform
distance-based inter-RAT RRC redirections when the cell is
congested.
GUI Value Range:0~100
Unit:%
Actual Value Range:0~100
Default Value:50

RedirFactorOfLDR

BSC6910 ADD
WRFDUCELLDISTANCEREDIRECTION 020401
MOD
UCELLDISTANCEREDIRECTION

Inter-RAT Redirection Meaning:Inter-RAT redirection scale factor when the target cell
Based on Distance
is congested. When the cell enters the LDR or OLC state, the
RNC calculates the probability at which UEs are redirected to a
GSM cell during distance-based inter-RAT RRC redirections. If
this parameter is set to 0, admitted users do not perform
distance-based inter-RAT RRC redirections when the cell is
congested.
GUI Value Range:0~100
Unit:%
Actual Value Range:0~100
Default Value:50

SCellLoadBsdRedirSwitch

BSC6900 ADD UCELLREDIRECTION
MOD UCELLREDIRECTION

WRFD020120

Service Steering and
Load Sharing in RRC
Connection Setup

Meaning:Whether the RNC considers the load of the current cell
before initiating a service-based RRC redirection. If this switch is
turned on, the RNC initiates an RRC redirection to redirect users
to an inter-frequency neighboring cell for load sharing when the
uplink power load of the current cell is greater than or equal to
the product of the value of the "UlLdrTrigThd" parameter in the
"ADD UCELLLDM" command and the value of the
"OffloadRelativeThd" parameter in the "ADD UCELLLDM"
command or the downlink power load of the current cell is
greater than or equal to the product of the value of the
"DlLdrTrigThd" parameter in the "ADD UCELLLDM" command
and the value of the "OffloadRelativeThd" parameter in the "ADD
UCELLLDM" command.
GUI Value Range:OFF, ON
Unit:None
Actual Value Range:OFF, ON
Default Value:OFF

SCellLoadBsdRedirSwitch

BSC6910 ADD UCELLREDIRECTION
MOD UCELLREDIRECTION

WRFD020120

Service Steering and
Load Sharing in RRC
Connection Setup

Meaning:Whether the RNC considers the load of the current cell
before initiating a service-based RRC redirection. If this switch is
turned on, the RNC initiates an RRC redirection to redirect users
to an inter-frequency neighboring cell for load sharing when the
uplink power load of the current cell is greater than or equal to
the product of the value of the "UlLdrTrigThd" parameter in the
"ADD UCELLLDM" command and the value of the
"OffloadRelativeThd" parameter in the "ADD UCELLLDM"
command or the downlink power load of the current cell is
greater than or equal to the product of the value of the
"DlLdrTrigThd" parameter in the "ADD UCELLLDM" command
and the value of the "OffloadRelativeThd" parameter in the "ADD
UCELLLDM" command.
GUI Value Range:OFF, ON
Unit:None
Actual Value Range:OFF, ON
Default Value:OFF

RedirSwitch

BSC6900 ADD UCELLREDIRECTION
MOD UCELLREDIRECTION

WRFD020120

Service Steering and
Load Sharing in RRC
Connection Setup

Meaning:Whether the service-based RRC redirection algorithm
is applicable to a specific service. When this switch is turned on,
the RNC checks the service type during initial RRC connection
setup. If the service type is defined by "TrafficType", the RNC
initiates a redirection based on the configured frequency. This
algorithm is valid only when the DR_RRC_DRD_SWITCH check
box under the "DrSwitch" parameter in the "SET
UCORRMALGOSWITCH" command is selected and this
parameter is set to ONLY_TO_INTER_FREQUENCY or
ONLY_TO_INTER_RAT. If this parameter is set to OFF, the
service-based RRC redirection algorithm is not enabled on the
specified service.
GUI Value Range:OFF, ONLY_TO_INTER_FREQUENCY,
ONLY_TO_INTER_RAT
Unit:None
Actual Value Range:OFF, ONLY_TO_INTER_FREQUENCY,
ONLY_TO_INTER_RAT
Default Value:None

RedirSwitch

BSC6910 ADD UCELLREDIRECTION
MOD UCELLREDIRECTION

WRFD020120

Service Steering and
Load Sharing in RRC
Connection Setup

Meaning:Whether the service-based RRC redirection algorithm
is applicable to a specific service. When this switch is turned on,
the RNC checks the service type during initial RRC connection
setup. If the service type is defined by "TrafficType", the RNC
initiates a redirection based on the configured frequency. This
algorithm is valid only when the DR_RRC_DRD_SWITCH check
box under the "DrSwitch" parameter in the "SET
UCORRMALGOSWITCH" command is selected and this
parameter is set to ONLY_TO_INTER_FREQUENCY or
ONLY_TO_INTER_RAT. If this parameter is set to OFF, the
service-based RRC redirection algorithm is not enabled on the
specified service.
GUI Value Range:OFF, ONLY_TO_INTER_FREQUENCY,
ONLY_TO_INTER_RAT
Unit:None
Actual Value Range:OFF, ONLY_TO_INTER_FREQUENCY,
ONLY_TO_INTER_RAT
Default Value:None

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Load Control Feature Parameter Description

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UlLdrTrigThd

BSC6900 ADD UCELLLDM
MOD UCELLLDM

WRFD020106
WRFD020102

Load Reshuffling
Load Measurement

Meaning:Threshold for triggering uplink LDR. If the ratio of the
uplink load to the uplink capacity is higher than or equal to this
threshold for a duration longer than that specified by the
"UlLdTrnsHysTime" parameter, uplink LDR (preliminary
congestion state) is triggered and LDR actions are performed to
reduce the cell load. The recommended value difference
between "UlLdrRelThd" and "UlLdrTrigThd" is higher than 10%
because the load fluctuates. Otherwise, a cell frequently enters
and leaves the preliminary congestion state.
GUI Value Range:0~100
Unit:%
Actual Value Range:0~100
Default Value:55

UlLdrTrigThd

BSC6910 ADD UCELLLDM
MOD UCELLLDM

WRFD020106
WRFD020102

Load Reshuffling
Load Measurement

Meaning:Threshold for triggering uplink LDR. If the ratio of the
uplink load to the uplink capacity is higher than or equal to this
threshold for a duration longer than that specified by the
"UlLdTrnsHysTime" parameter, uplink LDR (preliminary
congestion state) is triggered and LDR actions are performed to
reduce the cell load. The recommended value difference
between "UlLdrRelThd" and "UlLdrTrigThd" is higher than 10%
because the load fluctuates. Otherwise, a cell frequently enters
and leaves the preliminary congestion state.
GUI Value Range:0~100
Unit:%
Actual Value Range:0~100
Default Value:55

OffloadRelativeThd

BSC6900 ADD UCELLLDM
MOD UCELLLDM

WRFD020120

Service Steering and
Load Sharing in RRC
Connection Setup

Meaning:Relative threshold for load sharing. UEs in a cell are
redirected to an inter-frequency neighboring cell for load sharing
through a load-based RRC redirection or a P2F redirection for
non-real-time services when either of the following conditions is
met: 1. The value of this parameter multiplied by the value of
"UlLdrTrigThd" is less than or equal to the uplink load of the cell.
2. The value of this parameter multiplied by the value of
"DlLdrTrigThd" is less than or equal to the downlink load of the
cell.
GUI Value Range:0~100
Unit:%
Actual Value Range:0~100
Default Value:50

OffloadRelativeThd

BSC6910 ADD UCELLLDM
MOD UCELLLDM

WRFD020120

Service Steering and
Load Sharing in RRC
Connection Setup

Meaning:Relative threshold for load sharing. UEs in a cell are
redirected to an inter-frequency neighboring cell for load sharing
through a load-based RRC redirection or a P2F redirection for
non-real-time services when either of the following conditions is
met: 1. The value of this parameter multiplied by the value of
"UlLdrTrigThd" is less than or equal to the uplink load of the cell.
2. The value of this parameter multiplied by the value of
"DlLdrTrigThd" is less than or equal to the downlink load of the
cell.
GUI Value Range:0~100
Unit:%
Actual Value Range:0~100
Default Value:50

DlLdrTrigThd

BSC6900 ADD UCELLLDM
MOD UCELLLDM

WRFD020106
WRFD020102
WRFD020117
WRFD020122

Load Reshuffling
Load Measurement
Multi-Carrier Switch
off Based on Traffic
Load
Multi-Carrier Switch
off Based on QoS

Meaning:Threshold for triggering downlink LDR. If the ratio of
the downlink load to the downlink capacity is higher than or
equal to this threshold for a duration longer than that specified
by the "DlLdTrnsHysTime" parameter, downlink LDR
(preliminary congestion state) is triggered and LDR actions are
performed to reduce the cell load. The recommended value
difference between "DlLdrRelThd" and "DlLdrTrigThd" is higher
than 10% because the load fluctuates. Otherwise, a cell
frequently enters and leaves the preliminary congestion state.
GUI Value Range:0~100
Unit:%
Actual Value Range:0~100
Default Value:70

DlLdrTrigThd

BSC6910 ADD UCELLLDM
MOD UCELLLDM

WRFD020106
WRFD020102
WRFD020117
WRFD020122

Load Reshuffling
Load Measurement
Multi-Carrier Switch
off Based on Traffic
Load
Multi-Carrier Switch
off Based on QoS

Meaning:Threshold for triggering downlink LDR. If the ratio of
the downlink load to the downlink capacity is higher than or
equal to this threshold for a duration longer than that specified
by the "DlLdTrnsHysTime" parameter, downlink LDR
(preliminary congestion state) is triggered and LDR actions are
performed to reduce the cell load. The recommended value
difference between "DlLdrRelThd" and "DlLdrTrigThd" is higher
than 10% because the load fluctuates. Otherwise, a cell
frequently enters and leaves the preliminary congestion state.
GUI Value Range:0~100
Unit:%
Actual Value Range:0~100
Default Value:70

RedirFactorOfNorm

BSC6900 ADD UCELLREDIRECTION
MOD UCELLREDIRECTION

WRFD020120

Service Steering and
Load Sharing in RRC
Connection Setup

Meaning:Inter-RAT redirection scale factor for service steering
when the load of the target cell is normal. When the cell load is
normal, the RNC calculates the probability at which UEs are
redirected to an inter-frequency neighboring cell during interRAT RRC redirections for service steering. If this parameter is
set to 0, admitted users do not perform inter-RAT RRC
redirections for service steering when the cell load is normal.
GUI Value Range:0~100
Unit:%
Actual Value Range:0~100
Default Value:None

RedirFactorOfNorm

BSC6910 ADD UCELLREDIRECTION
MOD UCELLREDIRECTION

WRFD020120

Service Steering and
Load Sharing in RRC
Connection Setup

Meaning:Inter-RAT redirection scale factor for service steering
when the load of the target cell is normal. When the cell load is
normal, the RNC calculates the probability at which UEs are
redirected to an inter-frequency neighboring cell during interRAT RRC redirections for service steering. If this parameter is

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Load Control Feature Parameter Description

Page 73 of 143

set to 0, admitted users do not perform inter-RAT RRC
redirections for service steering when the cell load is normal.
GUI Value Range:0~100
Unit:%
Actual Value Range:0~100
Default Value:None
RedirFactorOfLDR

BSC6900 ADD UCELLREDIRECTION
MOD UCELLREDIRECTION

WRFD020120

Service Steering and
Load Sharing in RRC
Connection Setup

Meaning:Inter-RAT redirection scale factor for service steering
when the target cell is congested. When the cell enters the LDR
or OLC state, the RNC calculates the probability at which UEs
are redirected to a GSM cell during inter-RAT RRC redirections
for service steering. If this parameter is set to 0, admitted users
do not perform inter-RAT RRC redirections for service steering
when the cell is congested.
GUI Value Range:0~100
Unit:%
Actual Value Range:0~100
Default Value:None

RedirFactorOfLDR

BSC6910 ADD UCELLREDIRECTION
MOD UCELLREDIRECTION

WRFD020120

Service Steering and
Load Sharing in RRC
Connection Setup

Meaning:Inter-RAT redirection scale factor for service steering
when the target cell is congested. When the cell enters the LDR
or OLC state, the RNC calculates the probability at which UEs
are redirected to a GSM cell during inter-RAT RRC redirections
for service steering. If this parameter is set to 0, admitted users
do not perform inter-RAT RRC redirections for service steering
when the cell is congested.
GUI Value Range:0~100
Unit:%
Actual Value Range:0~100
Default Value:None

RedirBandInd

BSC6900 ADD UCELLREDIRECTION
MOD UCELLREDIRECTION

WRFD020120

Service Steering and
Load Sharing in RRC
Connection Setup

Meaning:Frequency band of the target uplink and downlink
UARFCNs for service-based inter-frequency RRC redirections. If
this parameter is set to DependOnNCell, the RNC selects the
target UARFCNs of neighboring cells that are on the same
frequency band as the source cell but have different frequencies
from the source cell during bind handovers. It is recommended
that this parameter be set to DependOnNCell without the
consideration of neighboring cells under the neighboring RNC,
that is, in the non-overlapped network. This helps avoid selfredirection. Self-redirection is a process in which the target cell
for redirection has the same UARFCN as the source cell and the
UE still initiates access in the source cell.
GUI Value Range:Band1, Band2, Band3, Band4, Band5, Band6,
Band7, Band8, Band9, DependOnNCell, BandIndNotUsed
Unit:None
Actual Value Range:Band1, Band2, Band3, Band4, Band5,
Band6, Band7, Band8, Band9, DependOnNCell,
BandIndNotUsed
Default Value:None

RedirBandInd

BSC6910 ADD UCELLREDIRECTION
MOD UCELLREDIRECTION

WRFD020120

Service Steering and
Load Sharing in RRC
Connection Setup

Meaning:Frequency band of the target uplink and downlink
UARFCNs for service-based inter-frequency RRC redirections. If
this parameter is set to DependOnNCell, the RNC selects the
target UARFCNs of neighboring cells that are on the same
frequency band as the source cell but have different frequencies
from the source cell during bind handovers. It is recommended
that this parameter be set to DependOnNCell without the
consideration of neighboring cells under the neighboring RNC,
that is, in the non-overlapped network. This helps avoid selfredirection. Self-redirection is a process in which the target cell
for redirection has the same UARFCN as the source cell and the
UE still initiates access in the source cell.
GUI Value Range:Band1, Band2, Band3, Band4, Band5, Band6,
Band7, Band8, Band9, DependOnNCell, BandIndNotUsed
Unit:None
Actual Value Range:Band1, Band2, Band3, Band4, Band5,
Band6, Band7, Band8, Band9, DependOnNCell,
BandIndNotUsed
Default Value:None

BlindHoFlag

BSC6900 ADD UINTERFREQNCELL
MOD UINTERFREQNCELL

WRFD020122
WRFD02040001
WRFD020400

Multi-Carrier Switch
off Based on QoS
Intra System Direct
Retry
DRD Introduction
Package

Meaning:Whether a neighboring cell is a candidate cell for blind
handovers. Value FALSE indicates that the neighboring cell is
not considered as a candidate cell for blind handovers.
Therefore, blind handovers to this cell cannot be triggered.
Value TRUE indicates that the cell is considered as a candidate
cell for blind handovers and blind handovers to this cell can be
triggered.
GUI Value Range:FALSE, TRUE
Unit:None
Actual Value Range:FALSE, TRUE
Default Value:False

BlindHoFlag

BSC6910 ADD UINTERFREQNCELL
MOD UINTERFREQNCELL

WRFD020122
WRFD02040001
WRFD020400

Multi-Carrier Switch
off Based on QoS
Intra System Direct
Retry
DRD Introduction
Package

Meaning:Whether a neighboring cell is a candidate cell for blind
handovers. Value FALSE indicates that the neighboring cell is
not considered as a candidate cell for blind handovers.
Therefore, blind handovers to this cell cannot be triggered.
Value TRUE indicates that the cell is considered as a candidate
cell for blind handovers and blind handovers to this cell can be
triggered.
GUI Value Range:FALSE, TRUE
Unit:None
Actual Value Range:FALSE, TRUE
Default Value:False

RRCRedirConsiderBarSwitch

BSC6900 SET UDRD

WRFD15020101
WRFD020120
WRFD020401

Macro & Micro Joint
Inter-frequency
Redirection
Service Steering and
Load Sharing in RRC
Connection Setup

Meaning:Whether the RNC filters out the cells that not allow UEs
in idle mode when selecting target cells during inter-frequency
RRC redirections. When this switch is turned on, the RNC filters
out cells that not allow UEs in idle mode when selecting target
cells during inter-frequency RRC redirections. When this switch
is turned off, the RNC does not filter out cells that not allow UEs

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Load Control Feature Parameter Description

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WRFDInter-RAT Redirection in idle mode when selecting target cells during inter-frequency
RRC redirections.
02040003 Based on Distance
Inter System Redirect GUI Value Range:ON, OFF
Unit:None
Actual Value Range:ON, OFF
Default Value:ON
RRCRedirConsiderBarSwitch

BSC6910 SET UDRD

WRFD15020101
WRFD020120
WRFD020401
WRFD02040003

Macro & Micro Joint
Inter-frequency
Redirection
Service Steering and
Load Sharing in RRC
Connection Setup
Inter-RAT Redirection
Based on Distance
Inter System Redirect

Meaning:Whether the RNC filters out the cells that not allow UEs
in idle mode when selecting target cells during inter-frequency
RRC redirections. When this switch is turned on, the RNC filters
out cells that not allow UEs in idle mode when selecting target
cells during inter-frequency RRC redirections. When this switch
is turned off, the RNC does not filter out cells that not allow UEs
in idle mode when selecting target cells during inter-frequency
RRC redirections.
GUI Value Range:ON, OFF
Unit:None
Actual Value Range:ON, OFF
Default Value:ON

IdleCellBarred

BSC6900 ADD UCELLACCESSSTRICT
MOD UCELLACCESSSTRICT

WRFD021103

Access Class
Restriction

Meaning:Whether a UE in idle mode is allowed to access the
cell. When this parameter is set to BARRED, it indicates that the
UE in idle mode is barred to select/reselect the cell even in the
case of emergency calls. For details, see 3GPP TS 25.331.
GUI Value Range:BARRED, NOT_BARRED
Unit:None
Actual Value Range:BARRED, NOT_BARRED
Default Value:None

IdleCellBarred

BSC6910 ADD UCELLACCESSSTRICT
MOD UCELLACCESSSTRICT

WRFD021103

Access Class
Restriction

Meaning:Whether a UE in idle mode is allowed to access the
cell. When this parameter is set to BARRED, it indicates that the
UE in idle mode is barred to select/reselect the cell even in the
case of emergency calls. For details, see 3GPP TS 25.331.
GUI Value Range:BARRED, NOT_BARRED
Unit:None
Actual Value Range:BARRED, NOT_BARRED
Default Value:None

MaxHsdpaUserNum

BSC6900 ADD UCELLCAC
MOD UCELLCAC

WRFD020101
WRFD01061003
WRFD010653
WRFD010654
WRFD01061112

Admission Control
HSDPA Admission
Control
96 HSDPA Users per
Cell
128 HSDPA Users
per Cell
HSDPA DRD

Meaning:Maximum number of users supported by the HSDPA
channel. The user in this parameter refers to the user with
services on the HSDPA channel, regardless of the number of
RABs carried on the HSDPA channel. Maximum HSDPA user
number cannot exceed the HSDPA capability of the NodeB
product, In practice, the value can be set based on the cell type
and the richness of the available HSDPA power and code
resources.
GUI Value Range:0~128
Unit:None
Actual Value Range:0~128
Default Value:64

MaxHsdpaUserNum

BSC6910 ADD UCELLCAC
MOD UCELLCAC

WRFD020101
WRFD01061003
WRFD010653
WRFD010654
WRFD01061112

Admission Control
HSDPA Admission
Control
96 HSDPA Users per
Cell
128 HSDPA Users
per Cell
HSDPA DRD

Meaning:Maximum number of users supported by the HSDPA
channel. The user in this parameter refers to the user with
services on the HSDPA channel, regardless of the number of
RABs carried on the HSDPA channel. Maximum HSDPA user
number cannot exceed the HSDPA capability of the NodeB
product, In practice, the value can be set based on the cell type
and the richness of the available HSDPA power and code
resources.
GUI Value Range:0~128
Unit:None
Actual Value Range:0~128
Default Value:64

LoadBalanceRatio

BSC6900 ADD UCELLCAC
MOD UCELLCAC

WRFDTraffic Steering and
02040004 Load Sharing During
RAB Setup

Meaning:Ratio of the number of HSDPA users for load balancing
in a cell with the HSDPA load balancing DRD algorithm based
on the number of users. The load value is calculated using the
HSDPA load balancing DRD algorithm based on the values of
LoadBalanceRatio and MaxHsdpaUserNum.
GUI Value Range:0~100
Unit:%
Actual Value Range:0~100
Default Value:100

LoadBalanceRatio

BSC6910 ADD UCELLCAC
MOD UCELLCAC

WRFDTraffic Steering and
02040004 Load Sharing During
RAB Setup

Meaning:Ratio of the number of HSDPA users for load balancing
in a cell with the HSDPA load balancing DRD algorithm based
on the number of users. The load value is calculated using the
HSDPA load balancing DRD algorithm based on the values of
LoadBalanceRatio and MaxHsdpaUserNum.
GUI Value Range:0~100
Unit:%
Actual Value Range:0~100
Default Value:100

TerminTrfcBsdRedirSwitch

BSC6900 ADD UCELLREDIRECTION
MOD UCELLREDIRECTION

WRFD020120

Service Steering and
Load Sharing in RRC
Connection Setup

Meaning:Whether service-based RRC redirections are
performed on mobile terminated calls (MTCs). If this parameter
is set to ON, service-based RRC redirections are performed on
MTCs. If this parameter is set to OFF, service-based RRC
redirections are performed only on mobile originated calls
(MOCs).
GUI Value Range:OFF, ON
Unit:None
Actual Value Range:OFF, ON
Default Value:OFF

TerminTrfcBsdRedirSwitch

BSC6910 ADD UCELLREDIRECTION
MOD UCELLREDIRECTION

WRFD020120

Service Steering and
Load Sharing in RRC
Connection Setup

Meaning:Whether service-based RRC redirections are
performed on mobile terminated calls (MTCs). If this parameter
is set to ON, service-based RRC redirections are performed on
MTCs. If this parameter is set to OFF, service-based RRC
redirections are performed only on mobile originated calls

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Load Control Feature Parameter Description

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(MOCs).
GUI Value Range:OFF, ON
Unit:None
Actual Value Range:OFF, ON
Default Value:OFF
ReDirUARFCNUplinkInd

BSC6900 ADD UCELLREDIRECTION
MOD UCELLREDIRECTION

WRFD020120

Service Steering and
Load Sharing in RRC
Connection Setup

Meaning:Whether the target UL UARFCN to which the UE is
redirected needs to be configured. TRUE indicates that the UL
UARFCN needs to be reconfigured. FALSE indicates that the UL
UARFCN need not be manually configured and it is
automatically configured according to the relation between the
UL and DL UARFCNs.
GUI Value Range:FALSE, TRUE
Unit:None
Actual Value Range:FALSE, TRUE
Default Value:None

ReDirUARFCNUplinkInd

BSC6910 ADD UCELLREDIRECTION
MOD UCELLREDIRECTION

WRFD020120

Service Steering and
Load Sharing in RRC
Connection Setup

Meaning:Whether the target UL UARFCN to which the UE is
redirected needs to be configured. TRUE indicates that the UL
UARFCN needs to be reconfigured. FALSE indicates that the UL
UARFCN need not be manually configured and it is
automatically configured according to the relation between the
UL and DL UARFCNs.
GUI Value Range:FALSE, TRUE
Unit:None
Actual Value Range:FALSE, TRUE
Default Value:None

ReDirUARFCNUplink

BSC6900 ADD UCELLREDIRECTION
MOD UCELLREDIRECTION

WRFD020120

Service Steering and
Load Sharing in RRC
Connection Setup

Meaning:Target UL UARFCN for service-based inter-frequency
RRC redirection. The value range of the UL UARFCN depends
on the value of "RedirBandInd". The relation between
"RedirBandInd" and the value range of the UL UARFCN is as
follows: BAND1 Common UARFCNs: [9612-9888] Special
UARFCNs: none BAND2 Common UARFCNs: [9262-9538]
Special UARFCNs: {12, 37, 62, 87, 112, 137, 162, 187, 212,
237, 262, 287} BAND3 Common UARFCNs: [937-1288] Special
UARFCNs: none BAND4 Common UARFCNs: [1312-1513]
Special UARFCNs: {1662, 1687, 1712, 1737, 1762, 1787, 1812,
1837, 1862} BAND5 Common UARFCNs: [4132-4233] Special
UARFCNs: {782, 787, 807, 812, 837, 862} BAND6 Common
UARFCNs: [4162-4188] Special UARFCNs: {812, 837} BAND7
Common UARFCNs: [2012-2338] Special UARFCNs: {2362,
2387, 2412, 2437, 2462, 2487, 2512, 2537, 2562, 2587, 2612,
2637, 2662, 2687} BAND8 Common UARFCNs: [2712-2863]
Special UARFCNs: none BAND9 Common UARFCNs: [87628912] Special UARFCNs: none BandIndNotUsed: [0-16383]
Value range: 0-16383 If the UL UARFCN is not manually
configured, if RedirBandInd is set to BAND1, BAND2, BAND3,
BAND4, BAND5, BAND6, BAND7, BAND8, or BAND9, and if the
DL UARFCN is valid, then the target UL UARFCN of the
redirection is automatically configured according to the following
principles: If the DL UARFCN is a common UARFCN, the
relation between the UL UARFCN and the DL UARFCN is as
follows: BAND1: UL UARFCN = DL UARFCN - 950 BAND2: UL
UARFCN = DL UARFCN - 400 BAND3: UL UARFCN = DL
UARFCN - 225 BAND4: UL UARFCN = DL UARFCN - 225
BAND5: UL UARFCN = DL UARFCN - 225 BAND6: UL
UARFCN = DL UARFCN - 225 BAND7: UL UARFCN = DL
UARFCN - 225 BAND8: UL UARFCN = DL UARFCN - 225
BAND9: UL UARFCN = DL UARFCN - 475 If the DL UARFCN is
a special UARFCN, the relation between the UL UARFCN and
the DL UARFCN is as follows: BAND2: UL UARFCN = DL
UARFCN - 400 BAND4: UL UARFCN = DL UARFCN - 225
BAND5: UL UARFCN = DL UARFCN - 225 BAND6: UL
UARFCN = DL UARFCN - 225 BAND7: UL UARFCN = DL
UARFCN - 225
GUI Value Range:0~16383
Unit:None
Actual Value Range:0~16383
Default Value:None

ReDirUARFCNUplink

BSC6910 ADD UCELLREDIRECTION
MOD UCELLREDIRECTION

WRFD020120

Service Steering and
Load Sharing in RRC
Connection Setup

Meaning:Target UL UARFCN for service-based inter-frequency
RRC redirection. The value range of the UL UARFCN depends
on the value of "RedirBandInd". The relation between
"RedirBandInd" and the value range of the UL UARFCN is as
follows: BAND1 Common UARFCNs: [9612-9888] Special
UARFCNs: none BAND2 Common UARFCNs: [9262-9538]
Special UARFCNs: {12, 37, 62, 87, 112, 137, 162, 187, 212,
237, 262, 287} BAND3 Common UARFCNs: [937-1288] Special
UARFCNs: none BAND4 Common UARFCNs: [1312-1513]
Special UARFCNs: {1662, 1687, 1712, 1737, 1762, 1787, 1812,
1837, 1862} BAND5 Common UARFCNs: [4132-4233] Special
UARFCNs: {782, 787, 807, 812, 837, 862} BAND6 Common
UARFCNs: [4162-4188] Special UARFCNs: {812, 837} BAND7
Common UARFCNs: [2012-2338] Special UARFCNs: {2362,
2387, 2412, 2437, 2462, 2487, 2512, 2537, 2562, 2587, 2612,
2637, 2662, 2687} BAND8 Common UARFCNs: [2712-2863]
Special UARFCNs: none BAND9 Common UARFCNs: [87628912] Special UARFCNs: none BandIndNotUsed: [0-16383]
Value range: 0-16383 If the UL UARFCN is not manually
configured, if RedirBandInd is set to BAND1, BAND2, BAND3,
BAND4, BAND5, BAND6, BAND7, BAND8, or BAND9, and if the
DL UARFCN is valid, then the target UL UARFCN of the
redirection is automatically configured according to the following
principles: If the DL UARFCN is a common UARFCN, the
relation between the UL UARFCN and the DL UARFCN is as
follows: BAND1: UL UARFCN = DL UARFCN - 950 BAND2: UL
UARFCN = DL UARFCN - 400 BAND3: UL UARFCN = DL
UARFCN - 225 BAND4: UL UARFCN = DL UARFCN - 225
BAND5: UL UARFCN = DL UARFCN - 225 BAND6: UL
UARFCN = DL UARFCN - 225 BAND7: UL UARFCN = DL
UARFCN - 225 BAND8: UL UARFCN = DL UARFCN - 225
BAND9: UL UARFCN = DL UARFCN - 475 If the DL UARFCN is

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Load Control Feature Parameter Description

Page 76 of 143

a special UARFCN, the relation between the UL UARFCN and
the DL UARFCN is as follows: BAND2: UL UARFCN = DL
UARFCN - 400 BAND4: UL UARFCN = DL UARFCN - 225
BAND5: UL UARFCN = DL UARFCN - 225 BAND6: UL
UARFCN = DL UARFCN - 225 BAND7: UL UARFCN = DL
UARFCN - 225
GUI Value Range:0~16383
Unit:None
Actual Value Range:0~16383
Default Value:None
ReDirUARFCNDownlink

BSC6900 ADD UCELLREDIRECTION
MOD UCELLREDIRECTION

WRFD020120

Service Steering and
Load Sharing in RRC
Connection Setup

Meaning:Target DL UARFCN for service-based inter-frequency
RRC redirection. Different values of "RedirBandInd" correspond
to different value ranges of the UARFCN. Range of Each
Downlink Band Indication is as follow: BAND1 Common
UARFCNs: [10562-10838] Special UARFCNs: none BAND2
Common UARFCNs: [9662-9938] Special UARFCNs: {412, 437,
462, 487, 512, 537, 562, 587, 612, 637, 662, 687} BAND3
Common UARFCNs: [1162-1513] Special UARFCNs: none
BAND4 Common UARFCNs: [1537-1738] Special UARFCNs:
{1887, 1912, 1937, 1962, 1987, 2012, 2037, 2062, 2087}
BAND5 Common UARFCNs: [4357-4458] Special UARFCNs:
{1007, 1012, 1032, 1037, 1062, 1087} BAND6 Common
UARFCNs: [4387-4413] Special UARFCNs: {1037, 1062}
BAND7 Common UARFCNs: [2237-2563] Special UARFCNs:
{2587, 2612, 2637, 2662, 2687, 2712, 2737, 2762, 2787, 2812,
2837, 2862, 2887, 2912} BAND8 Common UARFCNs: [29373088] Special UARFCNs: none BAND9 Common UARFCNs:
[9237-9387] Special UARFCNs: none BandIndNotUsed: [016383]
GUI Value Range:0~16383
Unit:None
Actual Value Range:0~16383
Default Value:None

ReDirUARFCNDownlink

BSC6910 ADD UCELLREDIRECTION
MOD UCELLREDIRECTION

WRFD020120

Service Steering and
Load Sharing in RRC
Connection Setup

Meaning:Target DL UARFCN for service-based inter-frequency
RRC redirection. Different values of "RedirBandInd" correspond
to different value ranges of the UARFCN. Range of Each
Downlink Band Indication is as follow: BAND1 Common
UARFCNs: [10562-10838] Special UARFCNs: none BAND2
Common UARFCNs: [9662-9938] Special UARFCNs: {412, 437,
462, 487, 512, 537, 562, 587, 612, 637, 662, 687} BAND3
Common UARFCNs: [1162-1513] Special UARFCNs: none
BAND4 Common UARFCNs: [1537-1738] Special UARFCNs:
{1887, 1912, 1937, 1962, 1987, 2012, 2037, 2062, 2087}
BAND5 Common UARFCNs: [4357-4458] Special UARFCNs:
{1007, 1012, 1032, 1037, 1062, 1087} BAND6 Common
UARFCNs: [4387-4413] Special UARFCNs: {1037, 1062}
BAND7 Common UARFCNs: [2237-2563] Special UARFCNs:
{2587, 2612, 2637, 2662, 2687, 2712, 2737, 2762, 2787, 2812,
2837, 2862, 2887, 2912} BAND8 Common UARFCNs: [29373088] Special UARFCNs: none BAND9 Common UARFCNs:
[9237-9387] Special UARFCNs: none BandIndNotUsed: [016383]
GUI Value Range:0~16383
Unit:None
Actual Value Range:0~16383
Default Value:None

ConnectFailRrcRedirSwitch

BSC6900 SET UDRD

WRFDDRD Introduction
020400
Package
WRFDInter System Redirect
02040003

Meaning:Whether to activate the RRC redirection algorithm
when the RRC connection setup is not admitted in the current
cell. RRC redirection is allowed in the case of an admission
failure only When this switch is turned on. This parameter takes
effect only when DR_RRC_DRD_SWITCH is set to ON. - OFF:
The RRC redirection is not allowed. - Only_To_Inter_Frequency:
Only RRC redirection to inter-frequency cells is allowed. Allowed_To_Inter_RAT: RRC redirections to inter-frequency
cells and inter-RAT cells are allowed.
GUI Value Range:OFF, Only_To_Inter_Frequency,
Allowed_To_Inter_RAT
Unit:None
Actual Value Range:OFF, Only_To_Inter_Frequency,
Allowed_To_Inter_RAT
Default Value:Only_To_Inter_Frequency

ConnectFailRrcRedirSwitch

BSC6910 SET UDRD

WRFDDRD Introduction
020400
Package
WRFDInter System Redirect
02040003

Meaning:Whether to activate the RRC redirection algorithm
when the RRC connection setup is not admitted in the current
cell. RRC redirection is allowed in the case of an admission
failure only When this switch is turned on. This parameter takes
effect only when DR_RRC_DRD_SWITCH is set to ON. - OFF:
The RRC redirection is not allowed. - Only_To_Inter_Frequency:
Only RRC redirection to inter-frequency cells is allowed. Allowed_To_Inter_RAT: RRC redirections to inter-frequency
cells and inter-RAT cells are allowed.
GUI Value Range:OFF, Only_To_Inter_Frequency,
Allowed_To_Inter_RAT
Unit:None
Actual Value Range:OFF, Only_To_Inter_Frequency,
Allowed_To_Inter_RAT
Default Value:Only_To_Inter_Frequency

N300

BSC6900 SET UIDLEMODETIMER

WRFD010101

3GPP R9
Specifications

Meaning:Maximum number of retransmissions of the RRC
CONNECTION REQUEST message. The value of this
parameter is contained in SIB1 messages.
GUI Value Range:0~7
Unit:None
Actual Value Range:0~7
Default Value:3

N300

BSC6910 SET UIDLEMODETIMER

WRFD010101

3GPP R9
Specifications

Meaning:Maximum number of retransmissions of the RRC
CONNECTION REQUEST message. The value of this

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Load Control Feature Parameter Description

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parameter is contained in SIB1 messages.
GUI Value Range:0~7
Unit:None
Actual Value Range:0~7
Default Value:3
DlOlcTrigThd

BSC6900 ADD UCELLLDM
MOD UCELLLDM

WRFD020107
WRFD020102

Overload Control
Load Measurement

Meaning:Threshold for triggering downlink OLC. If the ratio of
the downlink load to the downlink capacity is higher than or
equal to this threshold for a duration longer than that specified
by the "DlLdTrnsHysTime" parameter, downlink OLC (overload
state) is triggered and OLC actions are performed to reduce the
cell load. The recommended value difference between
"DlOlcRelThd" and "DlOlcTrigThd" is higher than 10% because
the load fluctuates. Otherwise, a cell frequently enters and
leaves the overload state.
GUI Value Range:0~100
Unit:%
Actual Value Range:0~100
Default Value:95

DlOlcTrigThd

BSC6910 ADD UCELLLDM
MOD UCELLLDM

WRFD020107
WRFD020102

Overload Control
Load Measurement

Meaning:Threshold for triggering downlink OLC. If the ratio of
the downlink load to the downlink capacity is higher than or
equal to this threshold for a duration longer than that specified
by the "DlLdTrnsHysTime" parameter, downlink OLC (overload
state) is triggered and OLC actions are performed to reduce the
cell load. The recommended value difference between
"DlOlcRelThd" and "DlOlcTrigThd" is higher than 10% because
the load fluctuates. Otherwise, a cell frequently enters and
leaves the overload state.
GUI Value Range:0~100
Unit:%
Actual Value Range:0~100
Default Value:95

PsSwitch

BSC6900 SET UCORRMALGOSWITCH

WRFD021101
WRFD030004
WRFD010507

Dynamic Channel
Configuration Control
(DCCC)
Adaptive
Configuration of
Typical HSPA Rate
Rate Negotiation at
Admission Control

Meaning:PS rate negotiation switch group. 1.
PS_BE_EXTRA_LOW_RATE_ACCESS_SWITCH: When the
switch is on, access at a rate of 0 kbit/s or on the FACH is
determined according to the current connection state of the RRC
if the PS BE admission and the later preemption and queuing
fail. 2. PS_BE_INIT_RATE_DYNAMIC_CFG_SWITCH: When
the switch is on, the initial rate of the service should be
dynamically configured according to the value of Ec/No reported
by the UE when the PS BE service is established. 3.
PS_BE_IU_QOS_NEG_SWITCH: When the switch is on, the Iu
QoS Negotiation function is applied to the PS BE service if
Alternative RAB Parameter Values IE is present in the RANAP
RAB ASSIGNMENT REQUEST or RELOCATION REQUEST
message. 4. PS_RAB_DOWNSIZING_SWITCH: When the
switch is on and the RAB downsizing license is activated, the
initial speed is determined on the basis of cell resources.
Downsizing is implemented for BE services. 5.
PS_STREAM_IU_QOS_NEG_SWITCH: When the switch is on,
the Iu QoS Negotiation function is applied to the PS STREAM
service if Alternative RAB Parameter Values IE is present in the
RANAP RAB ASSIGNMENT REQUEST or RELOCATION
REQUEST message. 6.
PS_BE_STRICT_IU_QOS_NEG_SWITCH: When the switch is
on, the strict Iu QoS Negotiation function is applied to the PS BE
service,RNC select Iu max bit rate based on UE capacity,cell
capacity,max bitrate and alternative RAB parameter values in
RANAP RAB ASSIGNMENT REQUEST or RELOCATION
REQUEST message. When the switch is not on, the loose Iu
QoS Negotiation function is applied to the PS BE service,RNC
select Iu max bit rate based on UE capacity,max bitrate and
alternative RAB parameter values in RANAP RAB
ASSIGNMENT REQUEST or RELOCATION REQUEST
message,not consider cell capacity,this can avoid Iu QoS
Renegotiation between different cell.The switch is valid when
PS_BE_IU_QOS_NEG_SWITCH is set to ON. 7.
HSPA_ADPTIVE_RATE_ALGO_SWITCH (HSPA typical traffic
rate adaptation switch): When this switch is turned on, the RNC
can calculate the actual maximum traffic rate of PS BE services
over HSPA channels based on the MBR assigned by the CN, if
the license controlling the Adaptive Configuration of Typical
HSPA Rate feature is activated.
GUI Value
Range:PS_BE_EXTRA_LOW_RATE_ACCESS_SWITCH,
PS_BE_INIT_RATE_DYNAMIC_CFG_SWITCH,
PS_BE_IU_QOS_NEG_SWITCH,
PS_RAB_DOWNSIZING_SWITCH,
PS_STREAM_IU_QOS_NEG_SWITCH,
PS_BE_STRICT_IU_QOS_NEG_SWITCH,
HSPA_ADPTIVE_RATE_ALGO_SWITCH
Unit:None
Actual Value
Range:PS_BE_EXTRA_LOW_RATE_ACCESS_SWITCH,
PS_BE_INIT_RATE_DYNAMIC_CFG_SWITCH,
PS_BE_IU_QOS_NEG_SWITCH,
PS_RAB_DOWNSIZING_SWITCH,
PS_STREAM_IU_QOS_NEG_SWITCH,
PS_BE_STRICT_IU_QOS_NEG_SWITCH,
HSPA_ADPTIVE_RATE_ALGO_SWITCH
Default
Value:PS_BE_EXTRA_LOW_RATE_ACCESS_SWITCH0&PS_BE_INIT_RATE_DYNAMIC_CFG_SWITCH0&PS_BE_IU_QOS_NEG_SWITCH0&PS_RAB_DOWNSIZING_SWITCH1&PS_STREAM_IU_QOS_NEG_SWITCH0&PS_BE_STRICT_IU_QOS_NEG_SWITCH0&HSPA_ADPTIVE_RATE_ALGO_SWITCH-0

PsSwitch

BSC6910 SET UCORRMALGOSWITCH

WRFD021101

Dynamic Channel
Configuration Control

Meaning:PS rate negotiation switch group. 1.
PS_BE_EXTRA_LOW_RATE_ACCESS_SWITCH: When the

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WRFD030004
WRFD010507

(DCCC)
Adaptive
Configuration of
Typical HSPA Rate
Rate Negotiation at
Admission Control

switch is on, access at a rate of 0 kbit/s or on the FACH is
determined according to the current connection state of the RRC
if the PS BE admission and the later preemption and queuing
fail. 2. PS_BE_INIT_RATE_DYNAMIC_CFG_SWITCH: When
the switch is on, the initial rate of the service should be
dynamically configured according to the value of Ec/No reported
by the UE when the PS BE service is established. 3.
PS_BE_IU_QOS_NEG_SWITCH: When the switch is on, the Iu
QoS Negotiation function is applied to the PS BE service if
Alternative RAB Parameter Values IE is present in the RANAP
RAB ASSIGNMENT REQUEST or RELOCATION REQUEST
message. 4. PS_RAB_DOWNSIZING_SWITCH: When the
switch is on and the RAB downsizing license is activated, the
initial speed is determined on the basis of cell resources.
Downsizing is implemented for BE services. 5.
PS_STREAM_IU_QOS_NEG_SWITCH: When the switch is on,
the Iu QoS Negotiation function is applied to the PS STREAM
service if Alternative RAB Parameter Values IE is present in the
RANAP RAB ASSIGNMENT REQUEST or RELOCATION
REQUEST message. 6.
PS_BE_STRICT_IU_QOS_NEG_SWITCH: When the switch is
on, the strict Iu QoS Negotiation function is applied to the PS BE
service,RNC select Iu max bit rate based on UE capacity,cell
capacity,max bitrate and alternative RAB parameter values in
RANAP RAB ASSIGNMENT REQUEST or RELOCATION
REQUEST message. When the switch is not on, the loose Iu
QoS Negotiation function is applied to the PS BE service,RNC
select Iu max bit rate based on UE capacity,max bitrate and
alternative RAB parameter values in RANAP RAB
ASSIGNMENT REQUEST or RELOCATION REQUEST
message,not consider cell capacity,this can avoid Iu QoS
Renegotiation between different cell.The switch is valid when
PS_BE_IU_QOS_NEG_SWITCH is set to ON. 7.
HSPA_ADPTIVE_RATE_ALGO_SWITCH (HSPA typical traffic
rate adaptation switch): When this switch is turned on, the RNC
can calculate the actual maximum traffic rate of PS BE services
over HSPA channels based on the MBR assigned by the CN, if
the license controlling the Adaptive Configuration of Typical
HSPA Rate feature is activated.
GUI Value
Range:PS_BE_EXTRA_LOW_RATE_ACCESS_SWITCH,
PS_BE_INIT_RATE_DYNAMIC_CFG_SWITCH,
PS_BE_IU_QOS_NEG_SWITCH,
PS_RAB_DOWNSIZING_SWITCH,
PS_STREAM_IU_QOS_NEG_SWITCH,
PS_BE_STRICT_IU_QOS_NEG_SWITCH,
HSPA_ADPTIVE_RATE_ALGO_SWITCH
Unit:None
Actual Value
Range:PS_BE_EXTRA_LOW_RATE_ACCESS_SWITCH,
PS_BE_INIT_RATE_DYNAMIC_CFG_SWITCH,
PS_BE_IU_QOS_NEG_SWITCH,
PS_RAB_DOWNSIZING_SWITCH,
PS_STREAM_IU_QOS_NEG_SWITCH,
PS_BE_STRICT_IU_QOS_NEG_SWITCH,
HSPA_ADPTIVE_RATE_ALGO_SWITCH
Default
Value:PS_BE_EXTRA_LOW_RATE_ACCESS_SWITCH0&PS_BE_INIT_RATE_DYNAMIC_CFG_SWITCH0&PS_BE_IU_QOS_NEG_SWITCH0&PS_RAB_DOWNSIZING_SWITCH1&PS_STREAM_IU_QOS_NEG_SWITCH0&PS_BE_STRICT_IU_QOS_NEG_SWITCH0&HSPA_ADPTIVE_RATE_ALGO_SWITCH-0

EcN0EffectTime

BSC6900 ADD UCELLFRC
MOD UCELLFRC

WRFD010510
WRFD150232
WRFD010612
WRFD010507
WRFD020400
WRFD010690

3.4/6.8/13.6/27.2Kbps
RRC Connection and
Radio Access Bearer
Establishment and
Release
Multiband Direct
Retry Based on UE
Location
HSUPA Introduction
Package
Rate Negotiation at
Admission Control
DRD Introduction
Package
TTI Switch for BE
Services Based on
Coverage

Meaning:Time period for valid Ec/No or RSCP. This parameter
defines the time period during which the reported values of
Ec/No or RSCP are considered as valid values. The time period
starts from the time the system receives the first Ec/No or
RSCP.
GUI Value Range:0~65535
Unit:ms
Actual Value Range:0~65535
Default Value:5000

EcN0EffectTime

BSC6910 ADD UCELLFRC
MOD UCELLFRC

WRFD010510
WRFD150232
WRFD010612
WRFD010507
WRFD020400
WRFD010690

3.4/6.8/13.6/27.2Kbps
RRC Connection and
Radio Access Bearer
Establishment and
Release
Multiband Direct
Retry Based on UE
Location
HSUPA Introduction
Package
Rate Negotiation at
Admission Control
DRD Introduction
Package
TTI Switch for BE
Services Based on
Coverage

Meaning:Time period for valid Ec/No or RSCP. This parameter
defines the time period during which the reported values of
Ec/No or RSCP are considered as valid values. The time period
starts from the time the system receives the first Ec/No or
RSCP.
GUI Value Range:0~65535
Unit:ms
Actual Value Range:0~65535
Default Value:5000

EcN0Ths

BSC6900 ADD UCELLFRC
MOD UCELLFRC

WRFD010510

3.4/6.8/13.6/27.2Kbps Meaning:Threshold for determining the signal quality in a cell. If
RRC Connection and the reported Ec/No exceeds the value of this parameter, you can

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WRFD010507

Radio Access Bearer
Establishment and
Release
Rate Negotiation at
Admission Control

infer that the signal quality in the cell is good and a high code
rate can be set for initial access.
GUI Value Range:0~49
Unit:0.5dB
Actual Value Range:-24.5~0 Actual Value = (GUI Value - 49
(offset)) x 0.5.
Default Value:41

EcN0Ths

BSC6910 ADD UCELLFRC
MOD UCELLFRC

WRFD010510
WRFD010507

3.4/6.8/13.6/27.2Kbps
RRC Connection and
Radio Access Bearer
Establishment and
Release
Rate Negotiation at
Admission Control

Meaning:Threshold for determining the signal quality in a cell. If
the reported Ec/No exceeds the value of this parameter, you can
infer that the signal quality in the cell is good and a high code
rate can be set for initial access.
GUI Value Range:0~49
Unit:0.5dB
Actual Value Range:-24.5~0 Actual Value = (GUI Value - 49
(offset)) x 0.5.
Default Value:41

DlBeTraffInitBitrate

BSC6900 SET UFRC

WRFD021101
WRFD010507

Dynamic Channel
Configuration Control
(DCCC)
Rate Negotiation at
Admission Control

Meaning:DL initial access rate of PS background or interactive
service. When DCCC function is enabled, the downlink initial
access rate will be set to this value if the downlink maximum rate
is higher than the initial access rate.
GUI Value Range:D8, D16, D32, D64, D128, D144, D256, D384
Unit:kbit/s
Actual Value Range:8, 16, 32, 64, 128, 144, 256, 384
Default Value:D64

DlBeTraffInitBitrate

BSC6910 SET UFRC

WRFD021101
WRFD010507

Dynamic Channel
Configuration Control
(DCCC)
Rate Negotiation at
Admission Control

Meaning:DL initial access rate of PS background or interactive
service. When DCCC function is enabled, the downlink initial
access rate will be set to this value if the downlink maximum rate
is higher than the initial access rate.
GUI Value Range:D8, D16, D32, D64, D128, D144, D256, D384
Unit:kbit/s
Actual Value Range:8, 16, 32, 64, 128, 144, 256, 384
Default Value:D64

DraSwitch

BSC6900 SET UCORRMALGOSWITCH

WRFD01061111
WRFD01061208
WRFD01061404
WRFD011502
WRFD021101
WRFD050405
WRFD050408
WRFD010690
WRFD01061403
WRFD010202
WRFD010507
WRFD020106
WRFD010653
WRFD010654
WRFD020131
WRFD020128
WRFD010301
WRFD010302
WRFD010801
WRFD010802
WRFD010901
WRFD010902

HSDPA State
Transition
HSUPA DCCC
HSUPA 2ms/10ms
TTI Handover
Active Queue
Management (AQM)
Dynamic Channel
Configuration Control
(DCCC)
Overbooking on ATM
Transmission
Overbooking on IP
Transmission
TTI Switch for BE
Services Based on
Coverage
HSUPA 2ms TTI
UE State in
Connected Mode
(CELL-DCH
CELL-PCH
URA-PCH
CELL-FACH)
Rate Negotiation at
Admission Control
Load Reshuffling
96 HSDPA Users per
Cell
128 HSDPA Users
per Cell
Optimization of R99
and HSUPA Users
Fairness
Quality Improvement
for Subscribed
Service
Paging UE in Idle
CELL_PCH
URA_PCH State
(Type 1)
Paging UE in
CELL_FACH
CELL_DCH State
(Type 2)
Intra RNC Cell
Update
Inter RNC Cell
Update
Intra RNC URA
Update
Inter RNC URA
Update

Meaning:Dynamic resource allocation switch group. 1.
DRA_AQM_SWITCH: When the switch is on, the active queue
management algorithm is used for the RNC. 2.
DRA_BASE_ADM_CE_BE_TTI_L2_OPT_SWITCH: When the
switch is on, the TTI dynamic adjustment algorithm for admission
CE-based BE services applies to the UE with the UL enhanced
L2 feature. This parameter is valid when
DRA_BASE_ADM_CE_BE_TTI_RECFG_SWITCH(DraSwitch)
is set to ON. 3.
DRA_BASE_ADM_CE_BE_TTI_RECFG_SWITCH: When the
switch is on, the TTI dynamic adjustment algorithm is supported
for admission CE-based BE services. 4.
DRA_BASE_COVER_BE_TTI_L2_OPT_SWITCH: When the
switch is on, the TTI dynamic adjustment algorithm for coverage
based BE services applies to the UE with the UL enhanced L2
feature. This parameter is valid when
DRA_BASE_COVER_BE_TTI_RECFG_SWITCH(DraSwitch) is
set to ON. 5. DRA_BASE_COVER_BE_TTI_RECFG_SWITCH:
When the switch is on, the TTI dynamic adjustment algorithm is
supported for coverage-based BE services. 6.
DRA_BASE_RES_BE_TTI_L2_OPT_SWITCH: When the switch
is on, the TTI dynamic adjustment algorithm for differentiationbased BE services applies to the UE with the UL enhanced L2
feature. This parameter is valid when
DRA_BASE_RES_BE_TTI_RECFG_SWITCH(DraSwitch) is set
to ON. 7. DRA_BASE_RES_BE_TTI_RECFG_SWITCH: When
the switch is on, the TTI dynamic adjustment algorithm is
supported for differentiation-based BE services. 8.
DRA_DCCC_SWITCH: When the switch is on, the dynamic
channel reconfiguration control algorithm is used for the RNC. 9.
DRA_HSDPA_DL_FLOW_CONTROL_SWITCH: When the
switch is on, flow control is enabled for HSDPA services in AM
mode. 10. DRA_HSDPA_STATE_TRANS_SWITCH: When the
switch is on, the status of the UE RRC that carrying HSDPA
services can be changed to CELL_FACH at the RNC. If a PS BE
service is carried over the HS-DSCH, the switch
PS_BE_STATE_TRANS_SWITCH should be on simultaneously.
If a PS real-time service is carried over the HS-DSCH, the switch
PS_NON_BE_STATE_TRANS_SWITCH should be on
simultaneously. 11. DRA_HSUPA_DCCC_SWITCH: When the
switch is on, the DCCC algorithm is used for HSUPA. The
DCCC switch must be also on before this switch takes effect. 12.
DRA_HSUPA_STATE_TRANS_SWITCH: When the switch is
on, the status of the UE RRC that carrying HSUPA services can
be changed to CELL_FACH at the RNC. If a PS BE service is
carried over the E-DCH, the switch
PS_BE_STATE_TRANS_SWITCH should be on simultaneously.
If a PS real-time service is carried over the E-DCH, the switch
PS_NON_BE_STATE_TRANS_SWITCH should be on
simultaneously. 13. DRA_IP_SERVICE_QOS_SWITCH: Switch
of the algorithm for increasing the quality of subscribed services.
When this parameter is set to ON, the service priority weight of
the subscriber whose key parameters (IP Address, IP Port, and
IP Protocol Type) match the specified ones can be adjusted. In
this way, the QoS is improved. 14.
DRA_PS_BE_STATE_TRANS_SWITCH: When this switch is
turned on, UEs can be transited among the CELL_DCH,
CELL_FACH, CELL_PCH, and URA_PCH states when they are
processing PS BE services. 15.
DRA_PS_NON_BE_STATE_TRANS_SWITCH: When this
switch is turned on, UEs can be transited between the
CELL_DCH and CELL_FACH states when they are processing
real-time PS services. 16.
DRA_R99_DL_FLOW_CONTROL_SWITCH: Under a poor radio
environment, the QoS of high speed services drops considerably
and the TX power is overly high. In this case, the RNC can set
restrictions on low data rate transmission formats based on the

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transmission quality, thus lowering traffic speed and TX power.
When the switch is on, the R99 downlink flow control function is
enabled. 17. DRA_THROUGHPUT_DCCC_SWITCH: When the
switch is on, the DCCC based on traffic statistics is supported
over the DCH. 18. DRA_VOICE_SAVE_CE_SWITCH: when the
switch is on, the TTI selection based on the voice service type
(including VoIP and CS over HSPA) is supported when the
service is initially established. 19.
DRA_VOICE_TTI_RECFG_SWITCH: when the switch is on, the
TTI adjustment based on the voice service type (including VoIP
and CS over HSPA) is supported. 20.
DRA_CSPS_NO_PERIOD_RETRY_SWITCH: Whether to
prohibit channel retries for CS and PS combined services. When
this switch is turned on, channel retries are prohibited for CS
and PS combined services. When this switch is turned off,
channel retries are allowed for CS and PS combined services.
21. DRA_SMART_FAST_STATE_TRANS_SWITCH: Whether to
activate the fast state transition algorithm. When this switch is
turned on, the RNC identifies UEs supporting fast state transition
and then quickly transits the UEs from CELL_DCH to
CELL_FACH. 22. DRA_PCH_UE_SMART_P2D_SWITCH:
Whether to activate the algorithm for smart PCH-to-DCH state
transition specific to UEs in the CELL_PCH or URA_PCH state.
When this switch is turned on, the RNC identifies UEs
supporting smart PCH-to-DCH state transition and then transits
the UEs from CELL_PCH or URA_PCH to CELL_DCH. 23.
DRA_BASE_RES_BE_TTI_INIT_SEL_SWITCH: Whether initial
TTI selection is allowed for differentiated BE services based on
fairness 0: This switch is turned off. The TTI is selected
according to the original algorithm. 1: This switch is turned on. In
the dynamic TTI adjustment algorithm for differentiated BE
services based on fairness, HSUPA UEs use 10-ms TTI if the
RTWP, occupied Iub bandwidth, or consumed CE resources are
congested. 24.
DRA_BASE_COVER_BE_TTI_INIT_SEL_SWITCH: Whether to
activate the coverage-based initial TTI selection algorithm
specific to BE services. When this switch is turned on and
conditions on 2 ms TTI specific to BE services has been met,
the RNC determines uplink coverage wideness of specific cells
based on the Ec/N0 values reported by UEs during RRC
connection. If the uplink coverage of the cells is weak, the RNC
allocates a 10 ms TTI to BE services as their initial TTI. 25.
DRA_F2U_SWITCH: Whether to enable state transition from
CELL_FACH to URA_PCH.When this switch is turned on, a UE
can directly move from the CELL_FACH to URA_PCH state.
When this switch is turned off, a UE must move from the
CELL_FACH to CELL_PCH and then to URA_PCH state.
GUI Value Range:DRA_AQM_SWITCH,
DRA_BASE_ADM_CE_BE_TTI_L2_OPT_SWITCH,
DRA_BASE_ADM_CE_BE_TTI_RECFG_SWITCH,
DRA_BASE_COVER_BE_TTI_L2_OPT_SWITCH,
DRA_BASE_COVER_BE_TTI_RECFG_SWITCH,
DRA_BASE_RES_BE_TTI_L2_OPT_SWITCH,
DRA_BASE_RES_BE_TTI_RECFG_SWITCH,
DRA_DCCC_SWITCH,
DRA_HSDPA_DL_FLOW_CONTROL_SWITCH,
DRA_HSDPA_STATE_TRANS_SWITCH,
DRA_HSUPA_DCCC_SWITCH,
DRA_HSUPA_STATE_TRANS_SWITCH,
DRA_IP_SERVICE_QOS_SWITCH,
DRA_PS_BE_STATE_TRANS_SWITCH,
DRA_PS_NON_BE_STATE_TRANS_SWITCH,
DRA_R99_DL_FLOW_CONTROL_SWITCH,
DRA_THROUGHPUT_DCCC_SWITCH,
DRA_VOICE_SAVE_CE_SWITCH,
DRA_VOICE_TTI_RECFG_SWITCH,
DRA_CSPS_NO_PERIOD_RETRY_SWITCH,
DRA_SMART_FAST_STATE_TRANS_SWITCH,
DRA_PCH_UE_SMART_P2D_SWITCH,
DRA_BASE_RES_BE_TTI_INIT_SEL_SWITCH,
DRA_BASE_COVER_BE_TTI_INIT_SEL_SWITCH,
DRA_F2U_SWITCH
Unit:None
Actual Value Range:DRA_AQM_SWITCH,
DRA_BASE_ADM_CE_BE_TTI_L2_OPT_SWITCH,
DRA_BASE_ADM_CE_BE_TTI_RECFG_SWITCH,
DRA_BASE_COVER_BE_TTI_L2_OPT_SWITCH,
DRA_BASE_COVER_BE_TTI_RECFG_SWITCH,
DRA_BASE_RES_BE_TTI_L2_OPT_SWITCH,
DRA_BASE_RES_BE_TTI_RECFG_SWITCH,
DRA_DCCC_SWITCH,
DRA_HSDPA_DL_FLOW_CONTROL_SWITCH,
DRA_HSDPA_STATE_TRANS_SWITCH,
DRA_HSUPA_DCCC_SWITCH,
DRA_HSUPA_STATE_TRANS_SWITCH,
DRA_IP_SERVICE_QOS_SWITCH,
DRA_PS_BE_STATE_TRANS_SWITCH,
DRA_PS_NON_BE_STATE_TRANS_SWITCH,
DRA_R99_DL_FLOW_CONTROL_SWITCH,
DRA_THROUGHPUT_DCCC_SWITCH,
DRA_VOICE_SAVE_CE_SWITCH,
DRA_VOICE_TTI_RECFG_SWITCH,
DRA_CSPS_NO_PERIOD_RETRY_SWITCH,
DRA_SMART_FAST_STATE_TRANS_SWITCH,
DRA_PCH_UE_SMART_P2D_SWITCH,
DRA_BASE_RES_BE_TTI_INIT_SEL_SWITCH,
DRA_BASE_COVER_BE_TTI_INIT_SEL_SWITCH,
DRA_F2U_SWITCH
Default Value:DRA_AQM_SWITCH0&DRA_BASE_ADM_CE_BE_TTI_L2_OPT_SWITCH0&DRA_BASE_ADM_CE_BE_TTI_RECFG_SWITCH1&DRA_BASE_COVER_BE_TTI_L2_OPT_SWITCH0&DRA_BASE_COVER_BE_TTI_RECFG_SWITCH0&DRA_BASE_RES_BE_TTI_L2_OPT_SWITCH-

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Load Control Feature Parameter Description

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0&DRA_BASE_RES_BE_TTI_RECFG_SWITCH1&DRA_DCCC_SWITCH1&DRA_HSDPA_DL_FLOW_CONTROL_SWITCH0&DRA_HSDPA_STATE_TRANS_SWITCH0&DRA_HSUPA_DCCC_SWITCH1&DRA_HSUPA_STATE_TRANS_SWITCH0&DRA_IP_SERVICE_QOS_SWITCH0&DRA_PS_BE_STATE_TRANS_SWITCH1&DRA_PS_NON_BE_STATE_TRANS_SWITCH0&DRA_R99_DL_FLOW_CONTROL_SWITCH0&DRA_THROUGHPUT_DCCC_SWITCH0&DRA_VOICE_SAVE_CE_SWITCH0&DRA_VOICE_TTI_RECFG_SWITCH0&DRA_CSPS_NO_PERIOD_RETRY_SWITCH0&DRA_SMART_FAST_STATE_TRANS_SWITCH0&DRA_PCH_UE_SMART_P2D_SWITCH0&DRA_BASE_RES_BE_TTI_INIT_SEL_SWITCH0&DRA_BASE_COVER_BE_TTI_INIT_SEL_SWITCH0&DRA_F2U_SWITCH-0
DraSwitch

BSC6910 SET UCORRMALGOSWITCH

WRFD01061111
WRFD01061208
WRFD01061404
WRFD011502
WRFD021101
WRFD050405
WRFD050408
WRFD010690
WRFD01061403
WRFD010202
WRFD010507
WRFD020106
WRFD010653
WRFD010654
WRFD020131
WRFD020128
WRFD010301
WRFD010302
WRFD010801
WRFD010802
WRFD010901
WRFD010902

HSDPA State
Transition
HSUPA DCCC
HSUPA 2ms/10ms
TTI Handover
Active Queue
Management (AQM)
Dynamic Channel
Configuration Control
(DCCC)
Overbooking on ATM
Transmission
Overbooking on IP
Transmission
TTI Switch for BE
Services Based on
Coverage
HSUPA 2ms TTI
UE State in
Connected Mode
(CELL-DCH
CELL-PCH
URA-PCH
CELL-FACH)
Rate Negotiation at
Admission Control
Load Reshuffling
96 HSDPA Users per
Cell
128 HSDPA Users
per Cell
Optimization of R99
and HSUPA Users
Fairness
Quality Improvement
for Subscribed
Service
Paging UE in Idle
CELL_PCH
URA_PCH State
(Type 1)
Paging UE in
CELL_FACH
CELL_DCH State
(Type 2)
Intra RNC Cell
Update
Inter RNC Cell
Update
Intra RNC URA
Update
Inter RNC URA
Update

Meaning:Dynamic resource allocation switch group. 1.
DRA_AQM_SWITCH: When the switch is on, the active queue
management algorithm is used for the RNC. 2.
DRA_BASE_ADM_CE_BE_TTI_L2_OPT_SWITCH: When the
switch is on, the TTI dynamic adjustment algorithm for admission
CE-based BE services applies to the UE with the UL enhanced
L2 feature. This parameter is valid when
DRA_BASE_ADM_CE_BE_TTI_RECFG_SWITCH(DraSwitch)
is set to ON. 3.
DRA_BASE_ADM_CE_BE_TTI_RECFG_SWITCH: When the
switch is on, the TTI dynamic adjustment algorithm is supported
for admission CE-based BE services. 4.
DRA_BASE_COVER_BE_TTI_L2_OPT_SWITCH: When the
switch is on, the TTI dynamic adjustment algorithm for coverage
based BE services applies to the UE with the UL enhanced L2
feature. This parameter is valid when
DRA_BASE_COVER_BE_TTI_RECFG_SWITCH(DraSwitch) is
set to ON. 5. DRA_BASE_COVER_BE_TTI_RECFG_SWITCH:
When the switch is on, the TTI dynamic adjustment algorithm is
supported for coverage-based BE services. 6.
DRA_BASE_RES_BE_TTI_L2_OPT_SWITCH: When the switch
is on, the TTI dynamic adjustment algorithm for differentiationbased BE services applies to the UE with the UL enhanced L2
feature. This parameter is valid when
DRA_BASE_RES_BE_TTI_RECFG_SWITCH(DraSwitch) is set
to ON. 7. DRA_BASE_RES_BE_TTI_RECFG_SWITCH: When
the switch is on, the TTI dynamic adjustment algorithm is
supported for differentiation-based BE services. 8.
DRA_DCCC_SWITCH: When the switch is on, the dynamic
channel reconfiguration control algorithm is used for the RNC. 9.
DRA_HSDPA_DL_FLOW_CONTROL_SWITCH: When the
switch is on, flow control is enabled for HSDPA services in AM
mode. 10. DRA_HSDPA_STATE_TRANS_SWITCH: When the
switch is on, the status of the UE RRC that carrying HSDPA
services can be changed to CELL_FACH at the RNC. If a PS BE
service is carried over the HS-DSCH, the switch
PS_BE_STATE_TRANS_SWITCH should be on simultaneously.
If a PS real-time service is carried over the HS-DSCH, the switch
PS_NON_BE_STATE_TRANS_SWITCH should be on
simultaneously. 11. DRA_HSUPA_DCCC_SWITCH: When the
switch is on, the DCCC algorithm is used for HSUPA. The
DCCC switch must be also on before this switch takes effect. 12.
DRA_HSUPA_STATE_TRANS_SWITCH: When the switch is
on, the status of the UE RRC that carrying HSUPA services can
be changed to CELL_FACH at the RNC. If a PS BE service is
carried over the E-DCH, the switch
PS_BE_STATE_TRANS_SWITCH should be on simultaneously.
If a PS real-time service is carried over the E-DCH, the switch
PS_NON_BE_STATE_TRANS_SWITCH should be on
simultaneously. 13. DRA_IP_SERVICE_QOS_SWITCH: Switch
of the algorithm for increasing the quality of subscribed services.
When this parameter is set to ON, the service priority weight of
the subscriber whose key parameters (IP Address, IP Port, and
IP Protocol Type) match the specified ones can be adjusted. In
this way, the QoS is improved. 14.
DRA_PS_BE_STATE_TRANS_SWITCH: When this switch is
turned on, UEs can be transited among the CELL_DCH,
CELL_FACH, CELL_PCH, and URA_PCH states when they are
processing PS BE services. 15.
DRA_PS_NON_BE_STATE_TRANS_SWITCH: When this
switch is turned on, UEs can be transited between the
CELL_DCH and CELL_FACH states when they are processing
real-time PS services. 16.
DRA_R99_DL_FLOW_CONTROL_SWITCH: Under a poor radio
environment, the QoS of high speed services drops considerably
and the TX power is overly high. In this case, the RNC can set
restrictions on low data rate transmission formats based on the
transmission quality, thus lowering traffic speed and TX power.
When the switch is on, the R99 downlink flow control function is
enabled. 17. DRA_THROUGHPUT_DCCC_SWITCH: When the
switch is on, the DCCC based on traffic statistics is supported
over the DCH. 18. DRA_VOICE_SAVE_CE_SWITCH: when the
switch is on, the TTI selection based on the voice service type
(including VoIP and CS over HSPA) is supported when the
service is initially established. 19.
DRA_VOICE_TTI_RECFG_SWITCH: when the switch is on, the
TTI adjustment based on the voice service type (including VoIP
and CS over HSPA) is supported. 20.
DRA_CSPS_NO_PERIOD_RETRY_SWITCH: Whether to
prohibit channel retries for CS and PS combined services. When
this switch is turned on, channel retries are prohibited for CS
and PS combined services. When this switch is turned off,
channel retries are allowed for CS and PS combined services.
21. DRA_SMART_FAST_STATE_TRANS_SWITCH: Whether to
activate the fast state transition algorithm. When this switch is

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turned on, the RNC identifies UEs supporting fast state transition
and then quickly transits the UEs from CELL_DCH to
CELL_FACH. 22. DRA_PCH_UE_SMART_P2D_SWITCH:
Whether to activate the algorithm for smart PCH-to-DCH state
transition specific to UEs in the CELL_PCH or URA_PCH state.
When this switch is turned on, the RNC identifies UEs
supporting smart PCH-to-DCH state transition and then transits
the UEs from CELL_PCH or URA_PCH to CELL_DCH. 23.
DRA_BASE_RES_BE_TTI_INIT_SEL_SWITCH: Whether initial
TTI selection is allowed for differentiated BE services based on
fairness 0: This switch is turned off. The TTI is selected
according to the original algorithm. 1: This switch is turned on. In
the dynamic TTI adjustment algorithm for differentiated BE
services based on fairness, HSUPA UEs use 10-ms TTI if the
RTWP, occupied Iub bandwidth, or consumed CE resources are
congested. 24.
DRA_BASE_COVER_BE_TTI_INIT_SEL_SWITCH: Whether to
activate the coverage-based initial TTI selection algorithm
specific to BE services. When this switch is turned on and
conditions on 2 ms TTI specific to BE services has been met,
the RNC determines uplink coverage wideness of specific cells
based on the Ec/N0 values reported by UEs during RRC
connection. If the uplink coverage of the cells is weak, the RNC
allocates a 10 ms TTI to BE services as their initial TTI. 25.
DRA_F2U_SWITCH: Whether to enable state transition from
CELL_FACH to URA_PCH.When this switch is turned on, a UE
can directly move from the CELL_FACH to URA_PCH state.
When this switch is turned off, a UE must move from the
CELL_FACH to CELL_PCH and then to URA_PCH state.
GUI Value Range:DRA_AQM_SWITCH,
DRA_BASE_ADM_CE_BE_TTI_L2_OPT_SWITCH,
DRA_BASE_ADM_CE_BE_TTI_RECFG_SWITCH,
DRA_BASE_COVER_BE_TTI_L2_OPT_SWITCH,
DRA_BASE_COVER_BE_TTI_RECFG_SWITCH,
DRA_BASE_RES_BE_TTI_L2_OPT_SWITCH,
DRA_BASE_RES_BE_TTI_RECFG_SWITCH,
DRA_DCCC_SWITCH,
DRA_HSDPA_DL_FLOW_CONTROL_SWITCH,
DRA_HSDPA_STATE_TRANS_SWITCH,
DRA_HSUPA_DCCC_SWITCH,
DRA_HSUPA_STATE_TRANS_SWITCH,
DRA_IP_SERVICE_QOS_SWITCH,
DRA_PS_BE_STATE_TRANS_SWITCH,
DRA_PS_NON_BE_STATE_TRANS_SWITCH,
DRA_R99_DL_FLOW_CONTROL_SWITCH,
DRA_THROUGHPUT_DCCC_SWITCH,
DRA_VOICE_SAVE_CE_SWITCH,
DRA_VOICE_TTI_RECFG_SWITCH,
DRA_CSPS_NO_PERIOD_RETRY_SWITCH,
DRA_SMART_FAST_STATE_TRANS_SWITCH,
DRA_PCH_UE_SMART_P2D_SWITCH,
DRA_BASE_RES_BE_TTI_INIT_SEL_SWITCH,
DRA_BASE_COVER_BE_TTI_INIT_SEL_SWITCH,
DRA_F2U_SWITCH
Unit:None
Actual Value Range:DRA_AQM_SWITCH,
DRA_BASE_ADM_CE_BE_TTI_L2_OPT_SWITCH,
DRA_BASE_ADM_CE_BE_TTI_RECFG_SWITCH,
DRA_BASE_COVER_BE_TTI_L2_OPT_SWITCH,
DRA_BASE_COVER_BE_TTI_RECFG_SWITCH,
DRA_BASE_RES_BE_TTI_L2_OPT_SWITCH,
DRA_BASE_RES_BE_TTI_RECFG_SWITCH,
DRA_DCCC_SWITCH,
DRA_HSDPA_DL_FLOW_CONTROL_SWITCH,
DRA_HSDPA_STATE_TRANS_SWITCH,
DRA_HSUPA_DCCC_SWITCH,
DRA_HSUPA_STATE_TRANS_SWITCH,
DRA_IP_SERVICE_QOS_SWITCH,
DRA_PS_BE_STATE_TRANS_SWITCH,
DRA_PS_NON_BE_STATE_TRANS_SWITCH,
DRA_R99_DL_FLOW_CONTROL_SWITCH,
DRA_THROUGHPUT_DCCC_SWITCH,
DRA_VOICE_SAVE_CE_SWITCH,
DRA_VOICE_TTI_RECFG_SWITCH,
DRA_CSPS_NO_PERIOD_RETRY_SWITCH,
DRA_SMART_FAST_STATE_TRANS_SWITCH,
DRA_PCH_UE_SMART_P2D_SWITCH,
DRA_BASE_RES_BE_TTI_INIT_SEL_SWITCH,
DRA_BASE_COVER_BE_TTI_INIT_SEL_SWITCH,
DRA_F2U_SWITCH
Default Value:DRA_AQM_SWITCH0&DRA_BASE_ADM_CE_BE_TTI_L2_OPT_SWITCH0&DRA_BASE_ADM_CE_BE_TTI_RECFG_SWITCH1&DRA_BASE_COVER_BE_TTI_L2_OPT_SWITCH0&DRA_BASE_COVER_BE_TTI_RECFG_SWITCH0&DRA_BASE_RES_BE_TTI_L2_OPT_SWITCH0&DRA_BASE_RES_BE_TTI_RECFG_SWITCH1&DRA_DCCC_SWITCH1&DRA_HSDPA_DL_FLOW_CONTROL_SWITCH0&DRA_HSDPA_STATE_TRANS_SWITCH0&DRA_HSUPA_DCCC_SWITCH1&DRA_HSUPA_STATE_TRANS_SWITCH0&DRA_IP_SERVICE_QOS_SWITCH0&DRA_PS_BE_STATE_TRANS_SWITCH1&DRA_PS_NON_BE_STATE_TRANS_SWITCH0&DRA_R99_DL_FLOW_CONTROL_SWITCH0&DRA_THROUGHPUT_DCCC_SWITCH0&DRA_VOICE_SAVE_CE_SWITCH0&DRA_VOICE_TTI_RECFG_SWITCH0&DRA_CSPS_NO_PERIOD_RETRY_SWITCH0&DRA_SMART_FAST_STATE_TRANS_SWITCH0&DRA_PCH_UE_SMART_P2D_SWITCH0&DRA_BASE_RES_BE_TTI_INIT_SEL_SWITCH0&DRA_BASE_COVER_BE_TTI_INIT_SEL_SWITCH-

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0&DRA_F2U_SWITCH-0
HsupaInitialRate

BSC6900 SET UFRC

WRFDHSUPA DCCC
01061208 Rate Negotiation at
WRFDAdmission Control
010507

Meaning:HSUPA BE traffic initial bit rate. When DCCC algorithm
switch and HSUPA DCCC algorithm switch are enabled, the
uplink initial bit rate will be set to this value if the uplink max bit
rate is higher than the initial bit rate.
GUI Value Range:D8, D16, D32, D64, D128, D144, D256, D384,
D608, D1280, D2048, D2720, D5440
Unit:kbit/s
Actual Value Range:8, 16, 32, 64, 128, 144, 256, 384, 608,
1280, 2048, 2720, 5440
Default Value:D256

HsupaInitialRate

BSC6910 SET UFRC

WRFDHSUPA DCCC
01061208 Rate Negotiation at
WRFDAdmission Control
010507

Meaning:HSUPA BE traffic initial bit rate. When DCCC algorithm
switch and HSUPA DCCC algorithm switch are enabled, the
uplink initial bit rate will be set to this value if the uplink max bit
rate is higher than the initial bit rate.
GUI Value Range:D8, D16, D32, D64, D128, D144, D256, D384,
D608, D1280, D2048, D2720, D5440
Unit:kbit/s
Actual Value Range:8, 16, 32, 64, 128, 144, 256, 384, 608,
1280, 2048, 2720, 5440
Default Value:D256

MapSwitch

BSC6900 SET UCORRMALGOSWITCH

WRFD01061403
WRFD010630
WRFD010632
WRFD010688
WRFD01060902
WRFD010696
WRFD010699
WRFD01061405
WRFD010510
WRFD010636
WRFD010652

Meaning:Service mapping strategy switch group. 1.
MAP_HSUPA_TTI_2MS_SWITCH: When the switch is on, 2 ms
TTI is supported for HSUPA. 2.
MAP_INTER_RAT_PS_IN_CHANLE_LIMIT_SWITCH: When
the switch is on, the PS services are transmitted on the DCH
during the 2G-to-3G handover. When the switch is not on, the
PS services can be transmitted on suitable channels according
to the algorithm parameter configured for the RNC during the
2G-to-3G handover. 3. MAP_PS_BE_ON_E_FACH_SWITCH:
When the switch is on, the PS BE services can be transmitted
on the E-FACH(E-FACH for downlink and RACH for uplink, or
FACH for downlink and E-RACH for uplink). 4.
MAP_PS_STREAM_ON_E_FACH_SWITCH: When the switch
is on, the PS streaming services can be transmitted on the EFACH(E-FACH for downlink and RACH for uplink, or E-FACH for
downlink and E-RACH for uplink). 5.
MAP_PS_STREAM_ON_HSDPA_SWITCH: When the switch is
on, a PS streaming service is mapped on the HS-DSCH if the
DL maximum rate of the service is greater than or equal to the
HSDPA threshold for streaming services. 6.
MAP_PS_STREAM_ON_HSUPA_SWITCH: When the switch is
on, a PS streaming service is mapped on the E-DCH if the UL
maximum rate of the service is greater than or equal to the
HSUPA threshold for streaming services. 7.
MAP_SRB_6800_WHEN_RAB_ON_HSDSCH_SWITCH: When
the switch is on, the signaling is transmitted at a rate of 6.8 kbit/s
if all the downlink traffic is on the HSDPA channel. 8.
MAP_SRB_ON_DCH_OR_FACH_CS_RRC_SWITCH: When
this switch is turned on, the SRB of a CS RRC connection
cannot be established on HSPA channels. The RNC determines
whether an RRC connection request is for a CS service based
on the RRC connection setup cause and the value of Domain
Indicator. For a UE of a version earlier than Release 6, the RRC
connection setup cause of CS services is Originating
Conversational Call or Terminating Conversational Call. For a
UE of Release 6 or a later version, the value of Domain Indicator
must be CS and the RRC connection setup cause must be
Originating Conversational Call or Terminating Conversational
Call for a CS service. 9.
MAP_CSPS_TTI_2MS_LIMIT_SWITCH: Whether CS and PS
combined services can use HSUPA 2ms transmission time
interval (TTI). When this switch is turned on, CS and PS
combined services cannot use HSUPA 2ms TTI, which reduces
CS call drops caused by TTI switching. When this switch is
turned off, CS and PS combined services can use HSUPA 2ms
TTI. 10. MAP_CSPS_PS_UL_USE_DCH_SWITCH: Whether
uplink PS services of CS and PS combined services are carried
on DCHs. When this switch is turned off, the RNC determines
the channel for carrying uplink services of CS and PS combined
services. When this switch is turned on and CS and PS
combined services existing, the uplink PS services must be
carried on DCHs. 11.
MAP_CSPS_PS_DL_USE_DCH_SWITCH: Whether downlink
PS services of CS and PS combined services are carried on
DCHs. When this switch is turned off, the RNC determines the
channel carrying the downlink PS services of the CS and PS
combined services. When this switch is turned on and CS and
PS combined services existing, the downlink PS services must
be carried on DCHs.
GUI Value Range:MAP_HSUPA_TTI_2MS_SWITCH,
MAP_INTER_RAT_PS_IN_CHANLE_LIMIT_SWITCH,
MAP_PS_BE_ON_E_FACH_SWITCH,
MAP_PS_STREAM_ON_E_FACH_SWITCH,
MAP_PS_STREAM_ON_HSDPA_SWITCH,
MAP_PS_STREAM_ON_HSUPA_SWITCH,
MAP_SRB_6800_WHEN_RAB_ON_HSDSCH_SWITCH,
MAP_SRB_ON_DCH_OR_FACH_CS_RRC_SWITCH,
MAP_CSPS_TTI_2MS_LIMIT_SWITCH,
MAP_CSPS_PS_UL_USE_DCH_SWITCH,
MAP_CSPS_PS_DL_USE_DCH_SWITCH
Unit:None
Actual Value Range:MAP_HSUPA_TTI_2MS_SWITCH,
MAP_INTER_RAT_PS_IN_CHANLE_LIMIT_SWITCH,
MAP_PS_BE_ON_E_FACH_SWITCH,
MAP_PS_STREAM_ON_E_FACH_SWITCH,
MAP_PS_STREAM_ON_HSDPA_SWITCH,
MAP_PS_STREAM_ON_HSUPA_SWITCH,
MAP_SRB_6800_WHEN_RAB_ON_HSDSCH_SWITCH,
MAP_SRB_ON_DCH_OR_FACH_CS_RRC_SWITCH,

HSUPA 2ms TTI
Streaming Traffic
Class on HSDPA
Streaming Traffic
Class on HSUPA
Downlink Enhanced
CELL_FACH
Combination of One
CS Service and One
PS Service
DC-HSDPA
DC-HSDPA+MIMO
HSUPA 5.74Mbps
per User
3.4/6.8/13.6/27.2Kbps
RRC Connection and
Radio Access Bearer
Establishment and
Release
SRB over HSUPA
SRB over HSDPA

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MAP_CSPS_TTI_2MS_LIMIT_SWITCH,
MAP_CSPS_PS_UL_USE_DCH_SWITCH,
MAP_CSPS_PS_DL_USE_DCH_SWITCH
Default Value:MAP_HSUPA_TTI_2MS_SWITCH0&MAP_INTER_RAT_PS_IN_CHANLE_LIMIT_SWITCH0&MAP_PS_BE_ON_E_FACH_SWITCH0&MAP_PS_STREAM_ON_E_FACH_SWITCH0&MAP_PS_STREAM_ON_HSDPA_SWITCH0&MAP_PS_STREAM_ON_HSUPA_SWITCH0&MAP_SRB_6800_WHEN_RAB_ON_HSDSCH_SWITCH0&MAP_SRB_ON_DCH_OR_FACH_CS_RRC_SWITCH1&MAP_CSPS_TTI_2MS_LIMIT_SWITCH0&MAP_CSPS_PS_UL_USE_DCH_SWITCH1&MAP_CSPS_PS_DL_USE_DCH_SWITCH-0
MapSwitch

BSC6910 SET UCORRMALGOSWITCH

WRFD01061403
WRFD010630
WRFD010632
WRFD010688
WRFD01060902
WRFD010696
WRFD010699
WRFD01061405
WRFD010510
WRFD010636
WRFD010652

HSUPA 2ms TTI
Streaming Traffic
Class on HSDPA
Streaming Traffic
Class on HSUPA
Downlink Enhanced
CELL_FACH
Combination of One
CS Service and One
PS Service
DC-HSDPA
DC-HSDPA+MIMO
HSUPA 5.74Mbps
per User
3.4/6.8/13.6/27.2Kbps
RRC Connection and
Radio Access Bearer
Establishment and
Release
SRB over HSUPA
SRB over HSDPA

Meaning:Service mapping strategy switch group. 1.
MAP_HSUPA_TTI_2MS_SWITCH: When the switch is on, 2 ms
TTI is supported for HSUPA. 2.
MAP_INTER_RAT_PS_IN_CHANLE_LIMIT_SWITCH: When
the switch is on, the PS services are transmitted on the DCH
during the 2G-to-3G handover. When the switch is not on, the
PS services can be transmitted on suitable channels according
to the algorithm parameter configured for the RNC during the
2G-to-3G handover. 3. MAP_PS_BE_ON_E_FACH_SWITCH:
When the switch is on, the PS BE services can be transmitted
on the E-FACH(E-FACH for downlink and RACH for uplink, or
FACH for downlink and E-RACH for uplink). 4.
MAP_PS_STREAM_ON_E_FACH_SWITCH: When the switch
is on, the PS streaming services can be transmitted on the EFACH(E-FACH for downlink and RACH for uplink, or E-FACH for
downlink and E-RACH for uplink). 5.
MAP_PS_STREAM_ON_HSDPA_SWITCH: When the switch is
on, a PS streaming service is mapped on the HS-DSCH if the
DL maximum rate of the service is greater than or equal to the
HSDPA threshold for streaming services. 6.
MAP_PS_STREAM_ON_HSUPA_SWITCH: When the switch is
on, a PS streaming service is mapped on the E-DCH if the UL
maximum rate of the service is greater than or equal to the
HSUPA threshold for streaming services. 7.
MAP_SRB_6800_WHEN_RAB_ON_HSDSCH_SWITCH: When
the switch is on, the signaling is transmitted at a rate of 6.8 kbit/s
if all the downlink traffic is on the HSDPA channel. 8.
MAP_SRB_ON_DCH_OR_FACH_CS_RRC_SWITCH: When
this switch is turned on, the SRB of a CS RRC connection
cannot be established on HSPA channels. The RNC determines
whether an RRC connection request is for a CS service based
on the RRC connection setup cause and the value of Domain
Indicator. For a UE of a version earlier than Release 6, the RRC
connection setup cause of CS services is Originating
Conversational Call or Terminating Conversational Call. For a
UE of Release 6 or a later version, the value of Domain Indicator
must be CS and the RRC connection setup cause must be
Originating Conversational Call or Terminating Conversational
Call for a CS service. 9.
MAP_CSPS_TTI_2MS_LIMIT_SWITCH: Whether CS and PS
combined services can use HSUPA 2ms transmission time
interval (TTI). When this switch is turned on, CS and PS
combined services cannot use HSUPA 2ms TTI, which reduces
CS call drops caused by TTI switching. When this switch is
turned off, CS and PS combined services can use HSUPA 2ms
TTI. 10. MAP_CSPS_PS_UL_USE_DCH_SWITCH: Whether
uplink PS services of CS and PS combined services are carried
on DCHs. When this switch is turned off, the RNC determines
the channel for carrying uplink services of CS and PS combined
services. When this switch is turned on and CS and PS
combined services existing, the uplink PS services must be
carried on DCHs. 11.
MAP_CSPS_PS_DL_USE_DCH_SWITCH: Whether downlink
PS services of CS and PS combined services are carried on
DCHs. When this switch is turned off, the RNC determines the
channel carrying the downlink PS services of the CS and PS
combined services. When this switch is turned on and CS and
PS combined services existing, the downlink PS services must
be carried on DCHs.
GUI Value Range:MAP_HSUPA_TTI_2MS_SWITCH,
MAP_INTER_RAT_PS_IN_CHANLE_LIMIT_SWITCH,
MAP_PS_BE_ON_E_FACH_SWITCH,
MAP_PS_STREAM_ON_E_FACH_SWITCH,
MAP_PS_STREAM_ON_HSDPA_SWITCH,
MAP_PS_STREAM_ON_HSUPA_SWITCH,
MAP_SRB_6800_WHEN_RAB_ON_HSDSCH_SWITCH,
MAP_SRB_ON_DCH_OR_FACH_CS_RRC_SWITCH,
MAP_CSPS_TTI_2MS_LIMIT_SWITCH,
MAP_CSPS_PS_UL_USE_DCH_SWITCH,
MAP_CSPS_PS_DL_USE_DCH_SWITCH
Unit:None
Actual Value Range:MAP_HSUPA_TTI_2MS_SWITCH,
MAP_INTER_RAT_PS_IN_CHANLE_LIMIT_SWITCH,
MAP_PS_BE_ON_E_FACH_SWITCH,
MAP_PS_STREAM_ON_E_FACH_SWITCH,
MAP_PS_STREAM_ON_HSDPA_SWITCH,
MAP_PS_STREAM_ON_HSUPA_SWITCH,
MAP_SRB_6800_WHEN_RAB_ON_HSDSCH_SWITCH,
MAP_SRB_ON_DCH_OR_FACH_CS_RRC_SWITCH,
MAP_CSPS_TTI_2MS_LIMIT_SWITCH,
MAP_CSPS_PS_UL_USE_DCH_SWITCH,
MAP_CSPS_PS_DL_USE_DCH_SWITCH
Default Value:MAP_HSUPA_TTI_2MS_SWITCH0&MAP_INTER_RAT_PS_IN_CHANLE_LIMIT_SWITCH0&MAP_PS_BE_ON_E_FACH_SWITCH0&MAP_PS_STREAM_ON_E_FACH_SWITCH0&MAP_PS_STREAM_ON_HSDPA_SWITCH0&MAP_PS_STREAM_ON_HSUPA_SWITCH0&MAP_SRB_6800_WHEN_RAB_ON_HSDSCH_SWITCH-

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0&MAP_SRB_ON_DCH_OR_FACH_CS_RRC_SWITCH1&MAP_CSPS_TTI_2MS_LIMIT_SWITCH0&MAP_CSPS_PS_UL_USE_DCH_SWITCH1&MAP_CSPS_PS_DL_USE_DCH_SWITCH-0
OptimizationSwitch

BSC6900 SET URRCTRLSWITCH

WRFD010801
WRFD010802
WRFD020500
WRFD021101
WRFD010510
WRFD011402
WRFD010651
WRFD01061502
WRFD01061504
WRFD010301
WRFD010507

Intra RNC Cell
Update
Inter RNC Cell
Update
Enhanced Fast
Dormancy
Dynamic Channel
Configuration Control
(DCCC)
3.4/6.8/13.6/27.2Kbps
RRC Connection and
Radio Access Bearer
Establishment and
Release
Encryption
HSDPA over Iur
Combination of One
CS Service and Two
PS Services
Combination of One
CS Service and
Three PS Services
Paging UE in Idle
CELL_PCH
URA_PCH State
(Type 1)
Rate Negotiation at
Admission Control

Meaning:1)PAGGING_NUM_CTRL_SWITCH Maximum number
of paging attempts in the RAN network when no response is
received after a paging message is sent. 0: This switch is turned
off. The paging message is sent for a maximum of 10 times. 1:
This switch is turned on. The paging message is sent for a
maximum of 5 times. 2)ASU_RL_RESET_SWITCH(Switch for
RL Reestablishment During Soft Handover) Whether to trigger
radio link (RL) reestablishment during a soft handover. 1: This
switch is turned on. A UE sends a CELL UPDATE message to
the RNC and subsequently the RNC reestablishes the RL for the
UE when both of the following conditions are met: -The RNC is
waiting for the UE's response to the ACTIVE SET UPDATE
message. -The RNC detects that downlink transmission on
signaling radio bearer (SRB2) is disconnected or the NodeB
reports that all RLs for the UE are out of synchronization. 0: This
switch is turned off. The RNC does not reestablish the RL for the
UE when the preceding conditions are met. 3)
MC_RL_RESET_SWITCH(Switch for RL Reestablishment
During Meas Control) Whether to trigger RL reestablishment
during measurement control. 1: This switch is turned on. A UE
sends a CELL UPDATE message to the RNC and subsequently
the RNC reestablishes the RL for the UE when both of the
following conditions are met: -The RNC has sent a
MEASUREMENT CONTROL message to the UE. -The RNC
detects that downlink transmission on SRB2 is disconnected
when the UE state is stable. 0: This switch is turned off. The
RNC does not reestablish the RL for the UE when the preceding
conditions are met. 4)
FD_PCH_REENTERSA_FORCE_RRC_REL_SWITCH.
Whether to enable the RNC to release the RRC connection of
an EFD-capable UE that received an SCRI message from the
PS domain of the CN if the UE sends the RNC a CELL UPDATE
message after reentering a service area. When this switch is
turned on, the RNC releases the RRC connection of such a UE
in the preceding scenario. This solves the problem that a
network becomes inaccessible when such a UE reenters a
service area. 1: This switch is turned on. The RNC directly
releases the RRC connection after receiving the CELL UPDATE
message from the Enhanced Fast Dormancy-capable that
leaves and then reenters the service area. 0: This switch is
turned off. The RNC processes the CELL UPDATE message
received from the Enhanced Fast Dormancy-capable UE that
leaves and then reenters the service area. 5)
UE_CRC_COMPATIBLE_SWITCH. Whether the RNC normally
releases connections when it detects failed cyclic redundancy
check (CRC) on RB SETUP COMPLETE or RB
RECONFIGURATION COMPLETE messages received from
HSDPA UEs. 1: This switch is turned on. The RNC normally
releases the connections when it detects the failed CRC. 0: This
switch is turned off. The RNC abnormally releases the
connections when it detects the failed CRC. 6)
RNC_P2D_DRD_SWITCH. Whether the RNC performs the
directed retry decision (DRD) when it receives a CELL UPDATE
message with the cause value "uplink data transmission" or "
paging response" during UEs' state transition from CELL_PCH
or URA_PCH to CELL_DCH. 1: This switch is turned on. The
RNC performs the DRD in the preceding scenario. 0: This switch
is turned off. The RNC does not perform the DRD in the
preceding scenario. 7)P2D_SWITCH Whether to transit a UE
from the CELL_PCH or URA_PCH state to the CELL_DCH state
when the following conditions are met: the UE sends the RNC a
CELL UPDATE message with the cause value "uplink data
transmission" or "paging response"; the FACH in the cell where
the UE camps now is congested or the UE is to set up a CS
service. 1: This switch is turned on. The RNC instructs the UEs
in CELL_PCH or URA_PCH state to directly transit to the
CELL_DCH state in the preceding scenario. 0: This switch is
turned off. The RNC instructs the UEs in CELL_PCH or
URA_PCH state to transit to the CELL_FACH state in the
preceding scenario. 8)
AMR_F2D_OVERLAP_CELLUPT_SWITCH Whether the RNC
proceeds with CS service setups involving state transitions from
CELL_FACH to CELL_DCH if the UEs in question report cell
updates during the setup procedure. 1: This switch is turned on.
The RNC first processes the CELL UPDATE message and then
proceeds with the CS service setup procedure. 0: This switch is
turned off. The RNC processes the CELL UPDATE message
and does not proceed with the CS service setup. This results in
service setup failures. 9)SRB_RESET_RL_SETUP_SWITCH
Whether the RNC reestablishes a radio link (RL) when it detects
an SRB reset reported on Layer 2 for decreasing the number of
UE call drops 1: This switch is turned on. The RNC reestablishes
an RL when it detects the SRB reset. 0: This switch is turned off.
The RNC does not reestablish an RL when it detects the SRB
reset. 10)RLFAIL_RL_SETUP_SWITCH Whether active link re
establishment is allowed after the radio link fails 1: This switch is
turned on. Active link re-establishment is allowed after the RNC
receives a RADIO LINK FAILURE INDICATION message and
the timer used to wait for a RADIO LINK RESTORE
INDICATION message from the NodeB expires. 0: This switch is
turned off. Active link re-establishment is not allowed after the
RNC receives a RADIO LINK FAILURE INDICATION message
and the timer used to wait for a RADIO LINK RESTORE
INDICATION message from the NodeB expires. 11)
CS_RL_SETUP_SWITCH Whether the RNC reestablishes a
radio link (RL) when SRBs of a CS service reset or all its RLs
are out of synchronization. 1: This switch is turned on. The RNC
reestablishes an RL in the preceding scenario. 0: This switch is
turned off. The RNC does not reestablish an RL in the preceding
scenario. 12)PS_RL_SETUP_SWITCH 1: This switch is turned

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on. PS services can trigger active link re-establishment. 0: This
switch is turned off. PS services cannot trigger active link reestablishment. 13)UE_SRB_RESET_SWITCH Whether the
RNC reestablishes a radio link (RL) when it receives a CELL
UPDATE message carrying SRB reset information. 1: This
switch is turned on. The RNC does not release the RRC
connection and it reestablishes an RL. 0: This switch is turned
off. The RNC releases the RRC connection. 14)
RL_RESTORE_SWITCH Switch for the radio link restoration
timer 1: This switch is turned on. If there are CS services and
the last radio link fails, the RNC waits for the radio link to restore
before the timer T313 expires. 0: This switch is turned off. If
there are CS services and the last radio link fails, the RNC waits
for the radio link to restore before the original timer expires. 15)
RNC_EFD_D2F_SWITCH Whether to enable RNC-level UE
state transition from CELL_DCH to CELL_FACH (D2F) for fast
dormancy-capable UEs. 1: This switch is turned on. The D2F
state transition is enabled for the fast dormancy-capable UEs..
0: This switch is turned off. The state transition from CELL_DCH
to CELL_PCH (D2P) is enabled for the fast dormancy-capable
UEs 16)RNC_RB_SCRI_NOT_DROP_SWITCH Whether the RB
release due to SCRI during RB reconfiguration is calculated as a
call drop 1: This switch is turned on. The RB release due to
SCRI during reconfiguration is not calculated as a call drop. 0:
This switch is turned off. The RB release due to SCRI during
reconfiguration is calculated as a call drop. 17)
RRC_RECONN_SWITCH Switch for the RNC to process the
RRC connection setup requests from a UE. 1: This switch is
turned on. The RNC releases the established RRC connection
when the UE retransmits RRC connection setup requests. 0:
This switch is turned off. When the UE retransmits the RRC
connection setup request to access the same cell, the RNC
rejects the new RRC connection setup requests. When the UE
retransmits the RRC connection setup request to access
different cells, the RNC releases the established RRC
connection. It is recommended that this parameter be set to its
default value and the parameter value be not changed. If you
need to change the value of this parameter, ask for assistance
from Huawei technical support personnel. 18)
RRC_REPEAT_PFM_SWITCH Whether the RNC counts the
number of retransmitted RRC connection setup requests in the
measurement of the RRC.AttConnEstab.Reg and
RRC.AttConnEstab.Detac performance counters. 1: This switch
is turned on. The RNC counts the number of retransmitted RRC
connection setup requests in the measurement of the two
preceding performance counters. 0: This switch is turned off.
The RNC does not count the number of retransmitted RRC
connection setup requests in the measurement of the two
preceding performance counters. 19)
F2D_NO_RSP_RRCREL_SWITCH Whether the RNC releases
the RRC connection of a UE if the UE does not respond to the
RNC after its three failed attempts at the state transition from
CELL_FACH to CELL_DCH. 1: This switch is turned on. The
RRC connection is released with the cause "User Inactive" after
the UE fails in the state transition from CELL_FACH to
CELL_DCH for three times. The connection release is measured
in the VS.MBMS.RB.PTP.Loss.Abnorm counter. 0: This switch is
turned off. The RRC connection is not released after the UE fails
in the state transition from CELL_FACH to CELL_DCH three
times, and the UE remains in the CELL_FACH state. 20)
CS_SETUP_P2D_SWITCH Whether a UE in the CELL_PCH or
URA_PCH state preferentially performs a state transition from
CELL_PCH or URA_PCH to CELL_DCH or CELL_FACH before
initiating a CS service. 1: This switch is turned on. The RNC first
performs a state transition from CELL_PCH or URA_PCH to
CELL_DCH and then initiates the CS service. 0: This switch is
turned off. The UE first performs a state transition from
CELL_PCH or URA_PCH to CELL_FACH and then initiates the
CS service. 21)SYSHO_CIPHER_IE_SWITCH Whether the
relocation command sent from a UMTS network to an
unencrypted GSM network carries the UEA0 encryption
information element (IE) when a UE complying with 3GPP
Release 6 or later is handed over from the GSM network to the
UMTS network. 1: This switch is turned on. The relocation
command does not carry any encryption IE. 0: This switch is
turned off. The relocation command carries the UEA0 encryption
IE. 22)P2P_GTPU_NOT_CFG_SWITCH Whether to reconfigure
the GPRS Tunneling Protocol User plane (GTP-U) when a UE in
the CELL_PCH state performs a cell update. 1: This switch is
turned on. The GTP-U is not reconfigured in the preceding
scenario. 0: This switch is turned off. The GTP-U is reconfigured
in the preceding scenario. 23)
RB_SETUP_CIPHER_TIME_ADJ_SWITCH Whether the RNC
adjusts the activation time for encryption parameters based on
an RB SETUP COMPLETE message 1: When this switch is
turned on, the RNC does not adjust the activation time for
encryption parameters as long as the difference between the
activation times specified in an RB SETUP COMPLETE
message and in the corresponding RB SETUP message is
smaller than 200 connection frame numbers (CFNs). 0: When
this switch is turned off, the RNC always adjusts the activation
time for encryption parameters based on an RB SETUP
COMPLETE message, regardless of the preceding difference.
24)CS_PRI_MOD_NOT_INT_SWITCH Whether the RNC
reinitiates CS services upon receiving a RAB ASSIGNMENT
REQUEST message in which only the CS allocation/retention
priority (CARP) is changed. 1: This switch is turned on. The RNC
does not reinitiate CS services, which prevents CS call drops. 0:
This switch is turned off. The RNC reinitiates CS services, which
results in CS call drops. 25)
RAB_SETUP_TMSI_REALLOC_BUF_SWITCH Whether the
RNC buffers a TMSI REALLOCATION COMMAND message
received during an RAB setup. 1: This switch is turned on. The
RNC buffers the TMSI REALLOCATION COMMAND message
received during the RAB setup and then forwards the message

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to a UE after the RAB setup. 0: This switch is turned off. The
RNC does not buffer the TMSI REALLOCATION COMMAND
message received during the RAB setup. The RNC directly
forwards the message to a UE. 26)
IU_FAULT_REL_PS_RES_SWITCH Whether an SPU board
sends a PS service release message to an Iu-PS interface
board in case of a faulty IP path, a faulty Signaling Connection
Control Part (SCCP) link, or a reset on the Iu interface 1: This
switch is turned on. The SPU board sends the PS service
release message to the Iu-PS interface board. 0: This switch is
turned off. The SPU board does not send any PS service
release message to the Iu-PS interface board. 27)
RB_RECFG_RL_REEST_SWITCH Whether the RNC initiates
radio link (RL) reestablishment during a radio bearer (RB)
reconfiguration when the RNC detects that a signaling radio
bearer (SRB) is reset or all RLs for a UE are out of
synchronization 1: This switch is turned on. The RNC initiates
RL reestablishment during the RB reconfiguration. 0: This switch
is turned off. The RNC does not initiate RL reestablishment
during the RB reconfiguration. 28)
F2P_DT_MSG_BUFFER_SWITCH Whether the RNC buffers a
DIRECT TRANSFER message received from the CN and sends
a PAGING message after the RNC receives a RADIO BEARER
RECONFIGURATION COMPLETE message from a UE moving
from the CELL_FACH to CELL_PCH state (F2P for short) 1:
This switch is turned on. The RNC buffers the DIRECT
TRANSFER message and sends the PAGING message to the
UE. 0: This switch is turned off. The RNC does not buffer the
DIRECT TRANSFER message. 29)
SCRI_COMPATIBLE_SWITCH Whether the RNC performs
compatibility processing upon receiving a Signalling Connection
Release Indication message with the cause value "UE
Requested PS Data Session End" when CS+PS combined
services are performed. 1: This switch is turned on. The RNC
performs compatibility processing. It sends an RB RELEASE
message containing the Signalling Connection Release
Indication information element (IE) to instruct a UE to release
the signaling connection in the corresponding domain. 0: This
switch is turned off. The RNC does not perform compatibility
processing and it discards the SCRI message. 30)
GTPU_ERR_IND_DEF_SWITCH Whether the RNC measures
the number of call drops when it receives a GTPU Error
Indication message pertaining to a UE from the CN and releases
the RRC connection. 1: This switch is turned on. The RNC does
not measure the number of call drops in the preceding scenario.
0: This switch is turned off. The RNC measures the number of
call drops when releasing PS services. 31)
IUR_SRV_CELL_CHG_MACHS_RESET_SWITCH Whether the
RNC contains the MAC-hs reset indicator information element
(IE) in the PHYSICAL CHANNEL RECONFIGURATION and
RADIO BEARER RECONFIGURATION messages for a reset of
the MAC-hs entity. The two messages are sent to a UE when a
service link over the Iur interface changes. 1: This switch is
turned on. The RNC contains the MAC-hs reset indicator IE in
the two preceding messages. 0: This switch is turned off. The
RNC does not contain the MAC-hs reset indicator IE in the two
preceding messages.
GUI Value Range:PAGGING_NUM_CTRL_SWITCH
(PAGGING_NUM_CTRL_SWITCH), ASU_RL_RESET_SWITCH
(ASU_RL_RESET_SWITCH), MC_RL_RESET_SWITCH
(MC_RL_RESET_SWITCH),
FD_PCH_REENTERSA_FORCE_RRC_REL_SWITCH
(FD_PCH_REENTERSA_FORCE_RRC_REL_SWITCH),
UE_CRC_COMPATIBLE_SWITCH
(UE_CRC_COMPATIBLE_SWITCH),
RNC_P2D_DRD_SWITCH(RNC_P2D_DRD_SWITCH),
P2D_SWITCH(P2D_SWITCH),
AMR_F2D_OVERLAP_CELLUPT_SWITCH
(AMR_F2D_OVERLAP_CELLUPT_SWITCH),
SRB_RESET_RL_SETUP_SWITCH
(SRB_RESET_RL_SETUP_SWITCH),
RLFAIL_RL_SETUP_SWITCH(RLFAIL_RL_SETUP_SWITCH),
CS_RL_SETUP_SWITCH(CS_RL_SETUP_SWITCH),
PS_RL_SETUP_SWITCH(PS_RL_SETUP_SWITCH),
UE_SRB_RESET_SWITCH(UE_SRB_RESET_SWITCH),
RL_RESTORE_SWITCH(RL_RESTORE_SWITCH),
RNC_EFD_D2F_SWITCH(RNC_EFD_D2F_SWITCH),
RNC_RB_SCRI_NOT_DROP_SWITCH
(RNC_RB_SCRI_NOT_DROP_SWITCH),
RRC_RECONN_SWITCH(RRC_RECONN_SWITCH),
RRC_REPEAT_PFM_SWITCH
(RRC_REPEAT_PFM_SWITCH),
F2D_NO_RSP_RRCREL_SWITCH
(F2D_NO_RSP_RRCREL_SWITCH),
CS_SETUP_P2D_SWITCH(CS_SETUP_P2D_SWITCH),
SYSHO_CIPHER_IE_SWITCH(SYSHO_CIPHER_IE_SWITCH),
P2P_GTPU_NOT_CFG_SWITCH
(P2P_GTPU_NOT_CFG_SWITCH),
RB_SETUP_CIPHER_TIME_ADJ_SWITCH
(RB_SETUP_CIPHER_TIME_ADJ_SWITCH),
CS_PRI_MOD_NOT_INT_SWITCH
(CS_PRI_MOD_NOT_INT_SWITCH),
RAB_SETUP_TMSI_REALLOC_BUF_SWITCH
(RAB_SETUP_TMSI_REALLOC_BUF_SWITCH),
IU_FAULT_REL_PS_RES_SWITCH
(IU_FAULT_REL_PS_RES_SWITCH),
RB_RECFG_RL_REEST_SWITCH
(RB_RECFG_RL_REEST_SWITCH),
F2P_DT_MSG_BUFFER_SWITCH
(F2P_DT_MSG_BUFFER_SWITCH),
SCRI_COMPATIBLE_SWITCH
(SCRI_COMPATIBLE_SWITCH),
GTPU_ERR_IND_DEF_SWITCH
(GTPU_ERR_IND_DEF_SWITCH),
IUR_SRV_CELL_CHG_MACHS_RESET_SWITCH

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(IUR_SRV_CELL_CHG_MACHS_RESET_SWITCH)
Unit:None
Actual Value Range:PAGGING_NUM_CTRL_SWITCH,
ASU_RL_RESET_SWITCH, MC_RL_RESET_SWITCH,
FD_PCH_REENTERSA_FORCE_RRC_REL_SWITCH,
UE_CRC_COMPATIBLE_SWITCH, RNC_P2D_DRD_SWITCH,
P2D_SWITCH, AMR_F2D_OVERLAP_CELLUPT_SWITCH,
SRB_RESET_RL_SETUP_SWITCH,
RLFAIL_RL_SETUP_SWITCH, CS_RL_SETUP_SWITCH,
PS_RL_SETUP_SWITCH, UE_SRB_RESET_SWITCH,
RL_RESTORE_SWITCH, RNC_EFD_D2F_SWITCH,
RNC_RB_SCRI_NOT_DROP_SWITCH,
RRC_RECONN_SWITCH, RRC_REPEAT_PFM_SWITCH,
F2D_NO_RSP_RRCREL_SWITCH,
CS_SETUP_P2D_SWITCH, SYSHO_CIPHER_IE_SWITCH,
P2P_GTPU_NOT_CFG_SWITCH,
RB_SETUP_CIPHER_TIME_ADJ_SWITCH,
CS_PRI_MOD_NOT_INT_SWITCH,
RAB_SETUP_TMSI_REALLOC_BUF_SWITCH,
IU_FAULT_REL_PS_RES_SWITCH,
RB_RECFG_RL_REEST_SWITCH,
F2P_DT_MSG_BUFFER_SWITCH,
SCRI_COMPATIBLE_SWITCH,
GTPU_ERR_IND_DEF_SWITCH,
IUR_SRV_CELL_CHG_MACHS_RESET_SWITCH
Default Value:PAGGING_NUM_CTRL_SWITCH0&ASU_RL_RESET_SWITCH-0&MC_RL_RESET_SWITCH0&FD_PCH_REENTERSA_FORCE_RRC_REL_SWITCH0&UE_CRC_COMPATIBLE_SWITCH0&RNC_P2D_DRD_SWITCH-0&P2D_SWITCH0&AMR_F2D_OVERLAP_CELLUPT_SWITCH0&SRB_RESET_RL_SETUP_SWITCH0&RLFAIL_RL_SETUP_SWITCH-0&CS_RL_SETUP_SWITCH
0&PS_RL_SETUP_SWITCH-0&UE_SRB_RESET_SWITCH0&RL_RESTORE_SWITCH-0&RNC_EFD_D2F_SWITCH1&RNC_RB_SCRI_NOT_DROP_SWITCH0&RRC_RECONN_SWITCH-0&RRC_REPEAT_PFM_SWITCH
1&F2D_NO_RSP_RRCREL_SWITCH0&CS_SETUP_P2D_SWITCH0&SYSHO_CIPHER_IE_SWITCH0&P2P_GTPU_NOT_CFG_SWITCH1&RB_SETUP_CIPHER_TIME_ADJ_SWITCH1&CS_PRI_MOD_NOT_INT_SWITCH0&RAB_SETUP_TMSI_REALLOC_BUF_SWITCH0&IU_FAULT_REL_PS_RES_SWITCH0&RB_RECFG_RL_REEST_SWITCH0&F2P_DT_MSG_BUFFER_SWITCH0&SCRI_COMPATIBLE_SWITCH0&GTPU_ERR_IND_DEF_SWITCH0&IUR_SRV_CELL_CHG_MACHS_RESET_SWITCH-1
OptimizationSwitch

BSC6910 SET URRCTRLSWITCH

WRFD010801
WRFD010802
WRFD020500
WRFD021101
WRFD010510
WRFD011402
WRFD010651
WRFD01061502
WRFD01061504
WRFD010301
WRFD010507

Intra RNC Cell
Update
Inter RNC Cell
Update
Enhanced Fast
Dormancy
Dynamic Channel
Configuration Control
(DCCC)
3.4/6.8/13.6/27.2Kbps
RRC Connection and
Radio Access Bearer
Establishment and
Release
Encryption
HSDPA over Iur
Combination of One
CS Service and Two
PS Services
Combination of One
CS Service and
Three PS Services
Paging UE in Idle
CELL_PCH
URA_PCH State
(Type 1)
Rate Negotiation at
Admission Control

Meaning:1)PAGGING_NUM_CTRL_SWITCH Maximum number
of paging attempts in the RAN network when no response is
received after a paging message is sent. 0: This switch is turned
off. The paging message is sent for a maximum of 10 times. 1:
This switch is turned on. The paging message is sent for a
maximum of 5 times. 2)ASU_RL_RESET_SWITCH(Switch for
RL Reestablishment During Soft Handover) Whether to trigger
radio link (RL) reestablishment during a soft handover. 1: This
switch is turned on. A UE sends a CELL UPDATE message to
the RNC and subsequently the RNC reestablishes the RL for the
UE when both of the following conditions are met: -The RNC is
waiting for the UE's response to the ACTIVE SET UPDATE
message. -The RNC detects that downlink transmission on
signaling radio bearer (SRB2) is disconnected or the NodeB
reports that all RLs for the UE are out of synchronization. 0: This
switch is turned off. The RNC does not reestablish the RL for the
UE when the preceding conditions are met. 3)
MC_RL_RESET_SWITCH(Switch for RL Reestablishment
During Meas Control) Whether to trigger RL reestablishment
during measurement control. 1: This switch is turned on. A UE
sends a CELL UPDATE message to the RNC and subsequently
the RNC reestablishes the RL for the UE when both of the
following conditions are met: -The RNC has sent a
MEASUREMENT CONTROL message to the UE. -The RNC
detects that downlink transmission on SRB2 is disconnected
when the UE state is stable. 0: This switch is turned off. The
RNC does not reestablish the RL for the UE when the preceding
conditions are met. 4)
FD_PCH_REENTERSA_FORCE_RRC_REL_SWITCH.
Whether to enable the RNC to release the RRC connection of
an EFD-capable UE that received an SCRI message from the
PS domain of the CN if the UE sends the RNC a CELL UPDATE
message after reentering a service area. When this switch is
turned on, the RNC releases the RRC connection of such a UE
in the preceding scenario. This solves the problem that a
network becomes inaccessible when such a UE reenters a
service area. 1: This switch is turned on. The RNC directly
releases the RRC connection after receiving the CELL UPDATE
message from the Enhanced Fast Dormancy-capable that
leaves and then reenters the service area. 0: This switch is
turned off. The RNC processes the CELL UPDATE message
received from the Enhanced Fast Dormancy-capable UE that
leaves and then reenters the service area. 5)
UE_CRC_COMPATIBLE_SWITCH. Whether the RNC normally
releases connections when it detects failed cyclic redundancy
check (CRC) on RB SETUP COMPLETE or RB
RECONFIGURATION COMPLETE messages received from
HSDPA UEs. 1: This switch is turned on. The RNC normally
releases the connections when it detects the failed CRC. 0: This
switch is turned off. The RNC abnormally releases the
connections when it detects the failed CRC. 6)
RNC_P2D_DRD_SWITCH. Whether the RNC performs the
directed retry decision (DRD) when it receives a CELL UPDATE

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message with the cause value "uplink data transmission" or "
paging response" during UEs' state transition from CELL_PCH
or URA_PCH to CELL_DCH. 1: This switch is turned on. The
RNC performs the DRD in the preceding scenario. 0: This switch
is turned off. The RNC does not perform the DRD in the
preceding scenario. 7)P2D_SWITCH Whether to transit a UE
from the CELL_PCH or URA_PCH state to the CELL_DCH state
when the following conditions are met: the UE sends the RNC a
CELL UPDATE message with the cause value "uplink data
transmission" or "paging response"; the FACH in the cell where
the UE camps now is congested or the UE is to set up a CS
service. 1: This switch is turned on. The RNC instructs the UEs
in CELL_PCH or URA_PCH state to directly transit to the
CELL_DCH state in the preceding scenario. 0: This switch is
turned off. The RNC instructs the UEs in CELL_PCH or
URA_PCH state to transit to the CELL_FACH state in the
preceding scenario. 8)
AMR_F2D_OVERLAP_CELLUPT_SWITCH Whether the RNC
proceeds with CS service setups involving state transitions from
CELL_FACH to CELL_DCH if the UEs in question report cell
updates during the setup procedure. 1: This switch is turned on.
The RNC first processes the CELL UPDATE message and then
proceeds with the CS service setup procedure. 0: This switch is
turned off. The RNC processes the CELL UPDATE message
and does not proceed with the CS service setup. This results in
service setup failures. 9)SRB_RESET_RL_SETUP_SWITCH
Whether the RNC reestablishes a radio link (RL) when it detects
an SRB reset reported on Layer 2 for decreasing the number of
UE call drops 1: This switch is turned on. The RNC reestablishes
an RL when it detects the SRB reset. 0: This switch is turned off.
The RNC does not reestablish an RL when it detects the SRB
reset. 10)RLFAIL_RL_SETUP_SWITCH Whether active link re
establishment is allowed after the radio link fails 1: This switch is
turned on. Active link re-establishment is allowed after the RNC
receives a RADIO LINK FAILURE INDICATION message and
the timer used to wait for a RADIO LINK RESTORE
INDICATION message from the NodeB expires. 0: This switch is
turned off. Active link re-establishment is not allowed after the
RNC receives a RADIO LINK FAILURE INDICATION message
and the timer used to wait for a RADIO LINK RESTORE
INDICATION message from the NodeB expires. 11)
CS_RL_SETUP_SWITCH Whether the RNC reestablishes a
radio link (RL) when SRBs of a CS service reset or all its RLs
are out of synchronization. 1: This switch is turned on. The RNC
reestablishes an RL in the preceding scenario. 0: This switch is
turned off. The RNC does not reestablish an RL in the preceding
scenario. 12)PS_RL_SETUP_SWITCH 1: This switch is turned
on. PS services can trigger active link re-establishment. 0: This
switch is turned off. PS services cannot trigger active link reestablishment. 13)UE_SRB_RESET_SWITCH Whether the
RNC reestablishes a radio link (RL) when it receives a CELL
UPDATE message carrying SRB reset information. 1: This
switch is turned on. The RNC does not release the RRC
connection and it reestablishes an RL. 0: This switch is turned
off. The RNC releases the RRC connection. 14)
RL_RESTORE_SWITCH Switch for the radio link restoration
timer 1: This switch is turned on. If there are CS services and
the last radio link fails, the RNC waits for the radio link to restore
before the timer T313 expires. 0: This switch is turned off. If
there are CS services and the last radio link fails, the RNC waits
for the radio link to restore before the original timer expires. 15)
RNC_EFD_D2F_SWITCH Whether to enable RNC-level UE
state transition from CELL_DCH to CELL_FACH (D2F) for fast
dormancy-capable UEs. 1: This switch is turned on. The D2F
state transition is enabled for the fast dormancy-capable UEs..
0: This switch is turned off. The state transition from CELL_DCH
to CELL_PCH (D2P) is enabled for the fast dormancy-capable
UEs 16)RNC_RB_SCRI_NOT_DROP_SWITCH Whether the RB
release due to SCRI during RB reconfiguration is calculated as a
call drop 1: This switch is turned on. The RB release due to
SCRI during reconfiguration is not calculated as a call drop. 0:
This switch is turned off. The RB release due to SCRI during
reconfiguration is calculated as a call drop. 17)
RRC_RECONN_SWITCH Switch for the RNC to process the
RRC connection setup requests from a UE. 1: This switch is
turned on. The RNC releases the established RRC connection
when the UE retransmits RRC connection setup requests. 0:
This switch is turned off. When the UE retransmits the RRC
connection setup request to access the same cell, the RNC
rejects the new RRC connection setup requests. When the UE
retransmits the RRC connection setup request to access
different cells, the RNC releases the established RRC
connection. It is recommended that this parameter be set to its
default value and the parameter value be not changed. If you
need to change the value of this parameter, ask for assistance
from Huawei technical support personnel. 18)
RRC_REPEAT_PFM_SWITCH Whether the RNC counts the
number of retransmitted RRC connection setup requests in the
measurement of the RRC.AttConnEstab.Reg and
RRC.AttConnEstab.Detac performance counters. 1: This switch
is turned on. The RNC counts the number of retransmitted RRC
connection setup requests in the measurement of the two
preceding performance counters. 0: This switch is turned off.
The RNC does not count the number of retransmitted RRC
connection setup requests in the measurement of the two
preceding performance counters. 19)
F2D_NO_RSP_RRCREL_SWITCH Whether the RNC releases
the RRC connection of a UE if the UE does not respond to the
RNC after its three failed attempts at the state transition from
CELL_FACH to CELL_DCH. 1: This switch is turned on. The
RRC connection is released with the cause "User Inactive" after
the UE fails in the state transition from CELL_FACH to
CELL_DCH for three times. The connection release is measured
in the VS.MBMS.RB.PTP.Loss.Abnorm counter. 0: This switch is
turned off. The RRC connection is not released after the UE fails

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in the state transition from CELL_FACH to CELL_DCH three
times, and the UE remains in the CELL_FACH state. 20)
CS_SETUP_P2D_SWITCH Whether a UE in the CELL_PCH or
URA_PCH state preferentially performs a state transition from
CELL_PCH or URA_PCH to CELL_DCH or CELL_FACH before
initiating a CS service. 1: This switch is turned on. The RNC first
performs a state transition from CELL_PCH or URA_PCH to
CELL_DCH and then initiates the CS service. 0: This switch is
turned off. The UE first performs a state transition from
CELL_PCH or URA_PCH to CELL_FACH and then initiates the
CS service. 21)SYSHO_CIPHER_IE_SWITCH Whether the
relocation command sent from a UMTS network to an
unencrypted GSM network carries the UEA0 encryption
information element (IE) when a UE complying with 3GPP
Release 6 or later is handed over from the GSM network to the
UMTS network. 1: This switch is turned on. The relocation
command does not carry any encryption IE. 0: This switch is
turned off. The relocation command carries the UEA0 encryption
IE. 22)P2P_GTPU_NOT_CFG_SWITCH Whether to reconfigure
the GPRS Tunneling Protocol User plane (GTP-U) when a UE in
the CELL_PCH state performs a cell update. 1: This switch is
turned on. The GTP-U is not reconfigured in the preceding
scenario. 0: This switch is turned off. The GTP-U is reconfigured
in the preceding scenario. 23)
RB_SETUP_CIPHER_TIME_ADJ_SWITCH Whether the RNC
adjusts the activation time for encryption parameters based on
an RB SETUP COMPLETE message 1: When this switch is
turned on, the RNC does not adjust the activation time for
encryption parameters as long as the difference between the
activation times specified in an RB SETUP COMPLETE
message and in the corresponding RB SETUP message is
smaller than 200 connection frame numbers (CFNs). 0: When
this switch is turned off, the RNC always adjusts the activation
time for encryption parameters based on an RB SETUP
COMPLETE message, regardless of the preceding difference.
24)CS_PRI_MOD_NOT_INT_SWITCH Whether the RNC
reinitiates CS services upon receiving a RAB ASSIGNMENT
REQUEST message in which only the CS allocation/retention
priority (CARP) is changed. 1: This switch is turned on. The RNC
does not reinitiate CS services, which prevents CS call drops. 0:
This switch is turned off. The RNC reinitiates CS services, which
results in CS call drops. 25)
RAB_SETUP_TMSI_REALLOC_BUF_SWITCH Whether the
RNC buffers a TMSI REALLOCATION COMMAND message
received during an RAB setup. 1: This switch is turned on. The
RNC buffers the TMSI REALLOCATION COMMAND message
received during the RAB setup and then forwards the message
to a UE after the RAB setup. 0: This switch is turned off. The
RNC does not buffer the TMSI REALLOCATION COMMAND
message received during the RAB setup. The RNC directly
forwards the message to a UE. 26)
IU_FAULT_REL_PS_RES_SWITCH Whether an SPU board
sends a PS service release message to an Iu-PS interface
board in case of a faulty IP path, a faulty Signaling Connection
Control Part (SCCP) link, or a reset on the Iu interface 1: This
switch is turned on. The SPU board sends the PS service
release message to the Iu-PS interface board. 0: This switch is
turned off. The SPU board does not send any PS service
release message to the Iu-PS interface board. 27)
RB_RECFG_RL_REEST_SWITCH Whether the RNC initiates
radio link (RL) reestablishment during a radio bearer (RB)
reconfiguration when the RNC detects that a signaling radio
bearer (SRB) is reset or all RLs for a UE are out of
synchronization 1: This switch is turned on. The RNC initiates
RL reestablishment during the RB reconfiguration. 0: This switch
is turned off. The RNC does not initiate RL reestablishment
during the RB reconfiguration. 28)
F2P_DT_MSG_BUFFER_SWITCH Whether the RNC buffers a
DIRECT TRANSFER message received from the CN and sends
a PAGING message after the RNC receives a RADIO BEARER
RECONFIGURATION COMPLETE message from a UE moving
from the CELL_FACH to CELL_PCH state (F2P for short) 1:
This switch is turned on. The RNC buffers the DIRECT
TRANSFER message and sends the PAGING message to the
UE. 0: This switch is turned off. The RNC does not buffer the
DIRECT TRANSFER message. 29)
SCRI_COMPATIBLE_SWITCH Whether the RNC performs
compatibility processing upon receiving a Signalling Connection
Release Indication message with the cause value "UE
Requested PS Data Session End" when CS+PS combined
services are performed. 1: This switch is turned on. The RNC
performs compatibility processing. It sends an RB RELEASE
message containing the Signalling Connection Release
Indication information element (IE) to instruct a UE to release
the signaling connection in the corresponding domain. 0: This
switch is turned off. The RNC does not perform compatibility
processing and it discards the SCRI message. 30)
GTPU_ERR_IND_DEF_SWITCH Whether the RNC measures
the number of call drops when it receives a GTPU Error
Indication message pertaining to a UE from the CN and releases
the RRC connection. 1: This switch is turned on. The RNC does
not measure the number of call drops in the preceding scenario.
0: This switch is turned off. The RNC measures the number of
call drops when releasing PS services. 31)
IUR_SRV_CELL_CHG_MACHS_RESET_SWITCH Whether the
RNC contains the MAC-hs reset indicator information element
(IE) in the PHYSICAL CHANNEL RECONFIGURATION and
RADIO BEARER RECONFIGURATION messages for a reset of
the MAC-hs entity. The two messages are sent to a UE when a
service link over the Iur interface changes. 1: This switch is
turned on. The RNC contains the MAC-hs reset indicator IE in
the two preceding messages. 0: This switch is turned off. The
RNC does not contain the MAC-hs reset indicator IE in the two
preceding messages.
GUI Value Range:PAGGING_NUM_CTRL_SWITCH

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(PAGGING_NUM_CTRL_SWITCH), ASU_RL_RESET_SWITCH
(ASU_RL_RESET_SWITCH), MC_RL_RESET_SWITCH
(MC_RL_RESET_SWITCH),
FD_PCH_REENTERSA_FORCE_RRC_REL_SWITCH
(FD_PCH_REENTERSA_FORCE_RRC_REL_SWITCH),
UE_CRC_COMPATIBLE_SWITCH
(UE_CRC_COMPATIBLE_SWITCH),
RNC_P2D_DRD_SWITCH(RNC_P2D_DRD_SWITCH),
P2D_SWITCH(P2D_SWITCH),
AMR_F2D_OVERLAP_CELLUPT_SWITCH
(AMR_F2D_OVERLAP_CELLUPT_SWITCH),
SRB_RESET_RL_SETUP_SWITCH
(SRB_RESET_RL_SETUP_SWITCH),
RLFAIL_RL_SETUP_SWITCH(RLFAIL_RL_SETUP_SWITCH),
CS_RL_SETUP_SWITCH(CS_RL_SETUP_SWITCH),
PS_RL_SETUP_SWITCH(PS_RL_SETUP_SWITCH),
UE_SRB_RESET_SWITCH(UE_SRB_RESET_SWITCH),
RL_RESTORE_SWITCH(RL_RESTORE_SWITCH),
RNC_EFD_D2F_SWITCH(RNC_EFD_D2F_SWITCH),
RNC_RB_SCRI_NOT_DROP_SWITCH
(RNC_RB_SCRI_NOT_DROP_SWITCH),
RRC_RECONN_SWITCH(RRC_RECONN_SWITCH),
RRC_REPEAT_PFM_SWITCH
(RRC_REPEAT_PFM_SWITCH),
F2D_NO_RSP_RRCREL_SWITCH
(F2D_NO_RSP_RRCREL_SWITCH),
CS_SETUP_P2D_SWITCH(CS_SETUP_P2D_SWITCH),
SYSHO_CIPHER_IE_SWITCH(SYSHO_CIPHER_IE_SWITCH),
P2P_GTPU_NOT_CFG_SWITCH
(P2P_GTPU_NOT_CFG_SWITCH),
RB_SETUP_CIPHER_TIME_ADJ_SWITCH
(RB_SETUP_CIPHER_TIME_ADJ_SWITCH),
CS_PRI_MOD_NOT_INT_SWITCH
(CS_PRI_MOD_NOT_INT_SWITCH),
RAB_SETUP_TMSI_REALLOC_BUF_SWITCH
(RAB_SETUP_TMSI_REALLOC_BUF_SWITCH),
IU_FAULT_REL_PS_RES_SWITCH
(IU_FAULT_REL_PS_RES_SWITCH),
RB_RECFG_RL_REEST_SWITCH
(RB_RECFG_RL_REEST_SWITCH),
F2P_DT_MSG_BUFFER_SWITCH
(F2P_DT_MSG_BUFFER_SWITCH),
SCRI_COMPATIBLE_SWITCH
(SCRI_COMPATIBLE_SWITCH),
GTPU_ERR_IND_DEF_SWITCH
(GTPU_ERR_IND_DEF_SWITCH),
IUR_SRV_CELL_CHG_MACHS_RESET_SWITCH
(IUR_SRV_CELL_CHG_MACHS_RESET_SWITCH)
Unit:None
Actual Value Range:PAGGING_NUM_CTRL_SWITCH,
ASU_RL_RESET_SWITCH, MC_RL_RESET_SWITCH,
FD_PCH_REENTERSA_FORCE_RRC_REL_SWITCH,
UE_CRC_COMPATIBLE_SWITCH, RNC_P2D_DRD_SWITCH,
P2D_SWITCH, AMR_F2D_OVERLAP_CELLUPT_SWITCH,
SRB_RESET_RL_SETUP_SWITCH,
RLFAIL_RL_SETUP_SWITCH, CS_RL_SETUP_SWITCH,
PS_RL_SETUP_SWITCH, UE_SRB_RESET_SWITCH,
RL_RESTORE_SWITCH, RNC_EFD_D2F_SWITCH,
RNC_RB_SCRI_NOT_DROP_SWITCH,
RRC_RECONN_SWITCH, RRC_REPEAT_PFM_SWITCH,
F2D_NO_RSP_RRCREL_SWITCH,
CS_SETUP_P2D_SWITCH, SYSHO_CIPHER_IE_SWITCH,
P2P_GTPU_NOT_CFG_SWITCH,
RB_SETUP_CIPHER_TIME_ADJ_SWITCH,
CS_PRI_MOD_NOT_INT_SWITCH,
RAB_SETUP_TMSI_REALLOC_BUF_SWITCH,
IU_FAULT_REL_PS_RES_SWITCH,
RB_RECFG_RL_REEST_SWITCH,
F2P_DT_MSG_BUFFER_SWITCH,
SCRI_COMPATIBLE_SWITCH,
GTPU_ERR_IND_DEF_SWITCH,
IUR_SRV_CELL_CHG_MACHS_RESET_SWITCH
Default Value:PAGGING_NUM_CTRL_SWITCH0&ASU_RL_RESET_SWITCH-0&MC_RL_RESET_SWITCH0&FD_PCH_REENTERSA_FORCE_RRC_REL_SWITCH0&UE_CRC_COMPATIBLE_SWITCH0&RNC_P2D_DRD_SWITCH-0&P2D_SWITCH0&AMR_F2D_OVERLAP_CELLUPT_SWITCH0&SRB_RESET_RL_SETUP_SWITCH0&RLFAIL_RL_SETUP_SWITCH-0&CS_RL_SETUP_SWITCH
0&PS_RL_SETUP_SWITCH-0&UE_SRB_RESET_SWITCH0&RL_RESTORE_SWITCH-0&RNC_EFD_D2F_SWITCH1&RNC_RB_SCRI_NOT_DROP_SWITCH0&RRC_RECONN_SWITCH-0&RRC_REPEAT_PFM_SWITCH
1&F2D_NO_RSP_RRCREL_SWITCH0&CS_SETUP_P2D_SWITCH0&SYSHO_CIPHER_IE_SWITCH0&P2P_GTPU_NOT_CFG_SWITCH1&RB_SETUP_CIPHER_TIME_ADJ_SWITCH1&CS_PRI_MOD_NOT_INT_SWITCH0&RAB_SETUP_TMSI_REALLOC_BUF_SWITCH0&IU_FAULT_REL_PS_RES_SWITCH0&RB_RECFG_RL_REEST_SWITCH0&F2P_DT_MSG_BUFFER_SWITCH0&SCRI_COMPATIBLE_SWITCH0&GTPU_ERR_IND_DEF_SWITCH0&IUR_SRV_CELL_CHG_MACHS_RESET_SWITCH-1
PerfEnhanceSwitch1

BSC6900 SET UCORRMPARA

WRFD02131103
WRFD020701
WRFD020801

MOCN Mobility
Management
AMR/WB-AMR
Speech Rates Control
Cell ID + RTT
Function Based LCS

Meaning:1.
PERFENH_HSUPA_LOC_BASED_SCHEDUL_SWITCH:
Whether to use the algorithm of UE location-based HSUPA
scheduling. When this switch is turned on, the algorithm is used.
When this switch is turned off, the algorithm is not used. 2.
PERFENH_HRETRY_OPT_SWITCH: Whether the algorithm of

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Load Control Feature Parameter Description

WRFD020802
WRFD020803
WRFD01060903
WRFD02060502
WRFD020303
WRFD020129
WRFD010712
WRFD01060902
WRFD020400
WRFD021400
WRFD021101
WRFD020134
WRFD020203
WRFD010612
WRFD01061403
WRFD020503
WRFD010610
WRFD01061209

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OTDOA Based LCS
A-GPS Based LCS
Combination of Two
CS Services and One
PS Service (Except
for Two AMR Speech
Services)
SRNS Relocation
with Hard Handover
Inter-RAT Handover
Based on Coverage
PS Service
Redirection from
UMTS to LTE
Adaptive
Configuration of
Traffic Channel
Power offset for
HSUPA
Combination of One
CS Service and One
PS Service
DRD Introduction
Package
Direct Signaling
Connection Reestablishment
(DSCR)
Dynamic Channel
Configuration Control
(DCCC)
Push to Talk
Inter RNC Soft
Handover
HSUPA Introduction
Package
HSUPA 2ms TTI
Outer Loop Power
Control
HSDPA Introduction
Package
HSUPA HARQ and
Fast UL Scheduling in
Node B

channel retry optimization takes effect. When this switch is
turned on, the algorithm takes effect and channel retries are
triggered in all scenarios where the preconditions are met.
However, turning on this switch may increase the CPU usage.
When this switch is turned off, the algorithm does not take effect.
3. PERFENH_IUR_CSPS_RELOC_OPT_SWITCH: Static
relocation policy for CS and PS BE combined services. When
"PsBeProcType" is set to CORRM_SRNSR_PSBE_DSCR: If
this switch is turned on, UEs engaged in CS and PS BE
combined services can initiate static relocation. In this case, the
RNC releases the PS BE services and then originates the static
relocation procedure. If this switch is turned off, such UEs
cannot initiate static relocation. 4.
PERFENH_HSUPA_PO_THROU_MEAS_OPT_SWITCH:
Whether to optimize the throughput measurement control
parameters when
PC_HSUPA_DATA_CH_PO_ADAPTIVE_ADJ_SWITCH of the
"PcSwitch" parameter in the "SET UCORRMALGOSWITCH"
command is turned on. When this switch is turned on, the EDCH throughput is measured every 2400 ms. The hysteresis for
event 4A, suspending time after event 4A is triggered, hysteresis
for event 4B, and suspending time after event 4B is triggered
last for one measurement period. When this switch is turned off,
the E-DCH throughput is measured every 300 ms. The
hysteresis for event 4A, suspending time after event 4A is
triggered, hysteresis for event 4B, and suspending time after
event 4B is triggered last for eight measurement periods. 5.
PERFENH_OLPC_BLER_COEF_ADJUSTOPT: Switch for
choosing the BLER coefficient adjustment scheme for AMR
services. When this switch is turned off, the RNC adjusts the
BLER coefficient based on load reshuffling (LDR) or overload
control (OLC) status. When this switch is turned on, the RNC
adjusts the BLER coefficient based on the cell RTWP and actual
uplink service load reported by the NodeB. 6.
PERFENH_LITTLE_RATE_TIMER_AMEND: Timer after which
the rate of PS BE services whose uplink and downlink channel
types are both DCHs will be adjusted to the low-activity rate.
When this switch is turned off, the value is equal to MAX
(BeE2FStateTransTimer, BeD2FStateTransTimer). When this
switch is turned on, the value is equal to
BeD2FStateTransTimer. When a BE service rate reduces to the
DCCC rate threshold, the low-activity rate, as substitution to a
D2F transition, is used for the BE service because state
transition has not been enabled or the UE processing CS
services cannot transit to the CELL_FACH state. The timer
value and measurement controls for low-activity rate adjustment
use the corresponding parameter values involved in the D2F
transitions. 7. PERFENH_CS_TRIG_PS_P2D_ZERO_SWITCH:
Whether a PS BE service is limited to 0 kbit/s on the DCH after a
UE that has the PS BE service performs a
CELL_PCH/URA_PCH-to-CELL-DCH (P2D) state transition
triggered by a CS service setup. When this switch is turned off,
the PS BE service is limited to 8 kbit/s on the DCH after the UE
performs a P2D state transition. When this switch is turned on,
the PS BE service is limited to 0 kbit/s on the DCH after the UE
performs a P2D state transition. 8.
PERFENH_FACH_CONG_D2IDLE_SWITCH: Whether the RNC
releases all resources for a UE when the FACH is congested.
When this switch is turned on, the RNC releases all resources
for a UE if the following conditions are met: The UE performs a
CELL_DCH-to-CELL_FACH state transition. The FACH is
congested. The UE is processing a non-real-time PS service
that has a traffic volume of 0 bytes. 9.
PERFENH_P2D_FAIL_RETRY_SWITCH: Whether a UE is
allowed to access an inter-frequency co-coverage cell using
DRD or channel fallback after P2D state transition admission
fails. When this switch is turned off, the UE remains in the
CELL_PCH state after P2D state transition admission fails. 10.
PERFENH_PTT_IUR_D2F_SWITCH: Whether a PTT user can
perform a CELL_DCH-to-CELL_FACH (D2F for short) state
transition when Iur CCH is disabled during a soft handover over
the Iur interface. Assume that this switch is turned on. If the
DRNC cell serves as the best cell, DSCR is triggered. If the
SRNC cell serves as the best cell, D2F is triggered. When this
switch is turned off, the original flow keeps unchanged. 11.
PERFENH_LOW_VELO_OPT_SWITCH: Whether the lowactivity rate algorithm can be used on a UE that uses DCHs in
only the uplink or downlink. When this switch is turned on, the
low-activity rate algorithm can be used on the UE that uses
DCHs in only the uplink or downlink. When this switch is turned
off, the low-activity rate algorithm can be used on the UE that
uses DCHs in both the uplink and downlink. 12.
PERFENH_SRB_FAST_HRETRY_AFTER_DRD_SWITCH:
Whether the RNC triggers channel reconfiguration for the SRBs
to switch from the DCH to an HSPA channel immediately when
the type of a channel for carrying SRBs during a DRD procedure
is limited. When this switch is turned off, channel reconfiguration
is not triggered and the SRBs are carried on the DCH. When this
switch is turned on, the RNC triggers channel reconfiguration for
the SRBs to switch from the DCH to an HSPA channel
immediately after the DRD procedure. 13.
PERFENH_PTT_H2F_OPT_SWITCH: Whether the traffic and
throughput are measured during a state transition from
CELL_DCH to CELL_FACH (D2F for short) when PTT services
are carried on HSPA channels. When this switch is turned off,
the traffic and throughput will not be measured during the D2F
state transition triggered by PTT services. When this switch is
turned on, the traffic and throughput will be measured during the
D2F state transition, which prevents the UE from transiting to
CELL_FACH if the UE has data to transmit. In this case, if data
transmission occurs during the D2F state transition, the RNC
stops the D2F state transition. 14.
PERFENH_IUR_DB_TICK_OPT_SWITCH: Whether the
algorithm for optimizing the method of saving the information
about neighboring cells of a cell under the DRNC during a

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handover over Iur is enabled so that the CPU load on the SPUb
board becomes normal. When this switch is turned off, the
algorithm is disabled and the RNC saves the information about
neighboring cells in the original way. When this switch is turned
on, the algorithm is enabled. 15.
PERFENH_P2D_LIMIT_ON_DCH_LOWRATE_SWITCH:
Whether the PS BE service rate is limited to a low level after the
UE transits from CELL_PCH to CELL_DCH (P2D for short).
When this switch is turned off, the channel for carrying the PS
BE service and the PS BE service rate are not limited after the
UE transits from CELL_PCH to CELL_DCH. When this switch is
turned on, the PE BE service is limited to 8 kbit/s or 0 kbit/s on
the DCH after the UE transits from CELL_PCH to CELL_DCH.
16. PERFENH_BASE_RES_BE_TTI_DELAY_SWITCH:
Whether the RNC starts a delay timer when the algorithm for
fairness-based handovers for differentiated HSUPA TTI users is
enabled. When this switch is turned off, the delay timer does not
start. When this switch is turned on, the RNC starts the delay
timer after the algorithm for fairness-based handovers for
differentiated HSUPA TTI users us used to establish or modify a
throughput measurement. The handover from HSUPPA 2 ms
TTI users to 10 ms HSUPPA TTI users cannot be triggered
when the delay timer is running. 17.
PERFENH_BASE_ADM_CE_TTI2MS_LIMIT_SWITCH:
Whether the RNC considers CE resource congestion status of
the target cell for admitting HSUPA UEs when determining
whether HSUPA services support 2 ms TTI. When this switch is
turned off, the RNC does not consider CE resource congestion
status of the target cell when determining whether the HSUPA
services support 2 ms TTI. When this switch is turned on, the
RNC considers CE resource congestion status of the target cell
when determining whether the HSUPA services support 2 ms
TTI. If the CE resources are congested, only HSUPA 10 ms TTI
UEs are admitted. 18.
PERFENH_OLPC_SIRTAR_RESEND_SWITCH: Whether the
RNC sends the FP data frames that contain the information
element (IE) "Sir Target" to the NodeB after service setup or
reconfiguration succeeds and the NodeB then adjusts inner loop
power control based on the configured target SIR value and
actual target SIR value. When this switch is turned off, the FP
data frames do not contain the IE "Sir Target". When this switch
is turned on, the RNC sends FP data frames that contain the IE
"Sir Target" to the NodeB for up to four times at an interval of 1s.
19. PERFENH_F2P_LIMIT_WITH_CS_IU_CON_SWITCH:
Whether the RNC allows a UE to set up CS services during a
decision for state transition from CELL_FACH to CELL_PCH or
URA_PCH (F2P). When this switch is turned off, the RNC does
not allow the UE to set up the CS service and continues
performing the decision for F2P state transition if a UE initiates a
CS service during a decision for F2P state transition. When this
switch is turned on, if a UE initiates a CS service during a
decision for F2P state transition, the RNC stops performing the
decision for F2P state transition and allows the UE to set up the
CS service. 20.
PERFENH_CS_PS_F2H_RATE_LIMIT_SWITCH: Whether to
limit the maximum data rate for HSDPA PS services after a CS
service setup triggers an F2D state transition. When this switch
is turned off, the maximum data rate for HSDPA PS services is
limited after a CS service setup triggers an F2D state transition.
When this switch is turned on, the maximum data rate for
HSDPA PS services is unlimited after a CS service setup
triggers an F2D state transition. 21.
PERFENH_TTI_MC_UPDATE_OPT_SWITCH: TTI
reconfiguration optimization switch. When this switch is turned
off, the RNC updates the throughput measurement control
parameter for this algorithm after the handover is complete and
prohibits this algorithm from triggering dynamic TTI shifts from 2
ms to 10 ms in the following 5s. When this switch is turned on,
the RNC does not update the throughput measurement control
parameter for this algorithm if the parameter does not change
after a handover is complete. In this case, the RNC triggers this
algorithm upon receiving a TTI measurement report. 22.
PERFENH_HRETRY_OPT_WITH_CM_SWITCH: Whether to
allow periodic access retry for UEs in compressed mode to the
(directed retry decision) DRD-capable cell when candidate cells
for periodic retry include the current cell and neighboring DRD
cells. When this switch is turned off, periodic access retry for
UEs in compressed mode to the DRD-capable cell is not
allowed. When this switch is turned on, periodic access retry for
UEs in compressed mode to the DRD-capable cell is allowed.
23. PERFENH_UL_CHL_CHG_OLPC_OPT_SWITCH: Whether
to enable normal outer loop power control after D2E
reconfiguration in case of PS hard handover with E2D channel
fallback. When this switch is turned off, normal outer loop power
control is disabled after D2E reconfiguration in case of PS hard
handover with E2D channel fallback. When this switch is turned
on, normal outer loop power control is enabled after D2E
reconfiguration in case of PS hard handover with E2D channel
fallback. 24. PERFENH_IUR_CSPS_COMB_OPT_SWITCH:
Whether to optimize the combined hard handover and SRNS
relocation for CS+PS BE combined services. When this switch is
turned on and the relocation policies for CS and PS services are
different, the serving RNC (SRNC) releases the PS services and
then triggers a combined hard handover and SRNS relocation
for the CS services. When this switch is turned off, the combined
hard handover and SRNS relocation is not optimized. 25.
PERFENH_GSMOPGRP_TRANSTOSRNC_SWITCH: Whether
the drift RNC (DRNC) transfers information about the intra circle
roaming (ICR) license of the cells under the DRNC, and the
operator group and the inter-RAT cell type for neighboring GSM
cells to the SRNC over proprietary information elements (IEs).
When this switch is turned on, the DRNC transfers information
about the ICR license of the cells under the DRNC, and the
operator group and the inter-RAT cell type for neighboring GSM
cells to the SRNC over the private IEs in the Radio Link Setup

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Load Control Feature Parameter Description

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Response or Radio Link Addition Response message. When
this switch is turned off, the DRNC does not transfer the
preceding information. 26.
PERFENH_INTERRATHO_RETRY_SWITCH: Whether the
RNC initiates inter-RAT handovers according to the coveragebased inter-RAT periodic measurement report after inter-RAT
handovers fail. When this switch is turned on, the RNC still
processes the coverage-based inter-RAT periodic measurement
report reported by the UE and initiates inter-RAT handovers
after inter-RAT handovers fail. When this switch is turned off, the
RNC does not process the coverage-based inter-RAT periodic
measurement report reported by the UE. 27.
PERFENH_ICR_GSMNCELL_FILTER_SWITCH: When this
switch is turned on, the RNC initiates an inter-RAT handover
towards the neighboring GSM cell whose operator is the same
as the UE's operator. This increases the inter-RAT handover
success rate. 28. PERFENH_AMRC_DELAY_SWITCH:
Whether to delay adjusting the uplink voice service rate raised
by Adaptive Multi-Rate Control (AMRC). When this switch is
turned off, adjusting the uplink voice service rate is not delayed.
When this switch is turned on, adjusting the uplink voice service
rate is delayed. Before a UE sends the first valid voice frame,
the RNC does not adjust the AMR rate for the UE. This avoids
mute voices on some UEs. 29.
PERFENH_AMRC_DELAY_UE_COMP_SWITCH: Scope of
UEs on which adjusting the uplink rate using AMRC is delayed.
When this switch is turned off, the algorithm for delaying
adjusting the uplink rate using AMRC can be enabled on all
UEs. When this switch is turned on, the scope of UEs is set by
running the "ADD UIMEITAC" command. In this case, the CN
must support CS IMEI query. 30.
PERFENH_SMLC_D2F_ALLOW_SWITCH: Whether to allow
state transition from CELL_FACH to CELL_DCH and a location
measurement control message to be sent to the UE when the
RNC receives a RANAP Location Reporting Control message
from the CN and the DRA_PS_BE_STATE_TRANS_SWITCH
switch is turned off. When this switch is turned off, state
transition from CELL_FACH to CELL_DCH is not allowed and
the RNC does not send a location measurement control
message to the UE. When the switch is turned on, state
transition from CELL_FACH to CELL_DCH is allowed and the
RNC sends a location measurement control message to the UE
after state transition is successful. 31.
PERFENH_CSPS_NO_RATEUP_IN_CONJ_SWITCH: Whether
the RNC prohibits the PS RB reconfiguration triggered by an
uplink or downlink event 4A measurement report if the status is
congested as indicated by Combined Service Power Resource
Congest State. When this switch is turned off, the RNC allows
the PS RB reconfiguration triggered by an event 4A
measurement report. When this switch is turned on, the RNC
prohibits the PS RB reconfiguration triggered by an uplink or
downlink event 4A measurement report if the status is
congested as indicated by Combined Service Power Resource
Congest State. 32. PERFENH_UE_LTE_MEAS_CAP_SWITCH:
Whether to parse E-UTRAN measurement capabilities by
protocols. As specified by protocols, all UTRAN frequency bands
supported by a UE have the same E-UTRAN measurement
capability. When this switch is turned on, the E-UTRAN
measurement capability carried in the IE "UERadioAccessCapabBandFDD3" applies to all UTRAN frequency
bands supported by the UE. When this switch is turned off, the
E-UTRAN measurement capability carried in the IE "UERadioAccessCapabBandFDD3" applies only to the frequency
band serving the UE.
GUI Value
Range:PERFENH_HSUPA_LOC_BASED_SCHEDUL_SWITCH,
PERFENH_HRETRY_OPT_SWITCH,
PERFENH_IUR_CSPS_RELOC_OPT_SWITCH,
PERFENH_HSUPA_PO_THROU_MEAS_OPT_SWITCH,
PERFENH_OLPC_BLER_COEF_ADJUSTOPT,
PERFENH_LITTLE_RATE_TIMER_AMEND,
PERFENH_CS_TRIG_PS_P2D_ZERO_SWITCH,
PERFENH_FACH_CONG_D2IDLE_SWITCH,
PERFENH_P2D_FAIL_RETRY_SWITCH,
PERFENH_PTT_IUR_D2F_SWITCH,
PERFENH_LOW_VELO_OPT_SWITCH,
PERFENH_SRB_FAST_HRETRY_AFTER_DRD_SWITCH,
PERFENH_PTT_H2F_OPT_SWITCH,
PERFENH_IUR_DB_TICK_OPT_SWITCH,
PERFENH_P2D_LIMIT_ON_DCH_LOWRATE_SWITCH,
PERFENH_BASE_RES_BE_TTI_DELAY_SWITCH,
PERFENH_BASE_ADM_CE_TTI2MS_LIMIT_SWITCH,
PERFENH_OLPC_SIRTAR_RESEND_SWITCH,
PERFENH_F2P_LIMIT_WITH_CS_IU_CON_SWITCH,
PERFENH_CS_PS_F2H_RATE_LIMIT_SWITCH,
PERFENH_TTI_MC_UPDATE_OPT_SWITCH,
PERFENH_HRETRY_OPT_WITH_CM_SWITCH,
PERFENH_UL_CHL_CHG_OLPC_OPT_SWITCH,
PERFENH_IUR_CSPS_COMB_OPT_SWITCH,
PERFENH_GSMOPGRP_TRANSTOSRNC_SWITCH,
PERFENH_INTERRATHO_RETRY_SWITCH,
PERFENH_ICR_GSMNCELL_FILTER_SWITCH,
PERFENH_AMRC_DELAY_SWITCH,
PERFENH_AMRC_DELAY_UE_COMP_SWITCH,
PERFENH_SMLC_D2F_ALLOW_SWITCH,
PERFENH_CSPS_NO_RATEUP_IN_CONJ_SWITCH,
PERFENH_UE_LTE_MEAS_CAP_SWITCH
Unit:None
Actual Value
Range:PERFENH_HSUPA_LOC_BASED_SCHEDUL_SWITCH,
PERFENH_HRETRY_OPT_SWITCH,
PERFENH_IUR_CSPS_RELOC_OPT_SWITCH,
PERFENH_HSUPA_PO_THROU_MEAS_OPT_SWITCH,
PERFENH_OLPC_BLER_COEF_ADJUSTOPT,

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Load Control Feature Parameter Description

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PERFENH_LITTLE_RATE_TIMER_AMEND,
PERFENH_CS_TRIG_PS_P2D_ZERO_SWITCH,
PERFENH_FACH_CONG_D2IDLE_SWITCH,
PERFENH_P2D_FAIL_RETRY_SWITCH,
PERFENH_PTT_IUR_D2F_SWITCH,
PERFENH_LOW_VELO_OPT_SWITCH,
PERFENH_SRB_FAST_HRETRY_AFTER_DRD_SWITCH,
PERFENH_PTT_H2F_OPT_SWITCH,
PERFENH_IUR_DB_TICK_OPT_SWITCH,
PERFENH_P2D_LIMIT_ON_DCH_LOWRATE_SWITCH,
PERFENH_BASE_RES_BE_TTI_DELAY_SWITCH,
PERFENH_BASE_ADM_CE_TTI2MS_LIMIT_SWITCH,
PERFENH_OLPC_SIRTAR_RESEND_SWITCH,
PERFENH_F2P_LIMIT_WITH_CS_IU_CON_SWITCH,
PERFENH_CS_PS_F2H_RATE_LIMIT_SWITCH,
PERFENH_TTI_MC_UPDATE_OPT_SWITCH,
PERFENH_HRETRY_OPT_WITH_CM_SWITCH,
PERFENH_UL_CHL_CHG_OLPC_OPT_SWITCH,
PERFENH_IUR_CSPS_COMB_OPT_SWITCH,
PERFENH_GSMOPGRP_TRANSTOSRNC_SWITCH,
PERFENH_INTERRATHO_RETRY_SWITCH,
PERFENH_ICR_GSMNCELL_FILTER_SWITCH,
PERFENH_AMRC_DELAY_SWITCH,
PERFENH_AMRC_DELAY_UE_COMP_SWITCH,
PERFENH_SMLC_D2F_ALLOW_SWITCH,
PERFENH_CSPS_NO_RATEUP_IN_CONJ_SWITCH,
PERFENH_UE_LTE_MEAS_CAP_SWITCH
Default
Value:PERFENH_HSUPA_LOC_BASED_SCHEDUL_SWITCH
0&PERFENH_HRETRY_OPT_SWITCH1&PERFENH_IUR_CSPS_RELOC_OPT_SWITCH0&PERFENH_HSUPA_PO_THROU_MEAS_OPT_SWITCH1&PERFENH_OLPC_BLER_COEF_ADJUSTOPT0&PERFENH_LITTLE_RATE_TIMER_AMEND-1&
PERFENH_CS_TRIG_PS_P2D_ZERO_SWITCH-0&
PERFENH_FACH_CONG_D2IDLE_SWITCH-0&
PERFENH_P2D_FAIL_RETRY_SWITCH-1&
PERFENH_PTT_IUR_D2F_SWITCH-0&
PERFENH_LOW_VELO_OPT_SWITCH-0&
PERFENH_SRB_FAST_HRETRY_AFTER_DRD_SWITCH-0&
PERFENH_PTT_H2F_OPT_SWITCH-1&
PERFENH_IUR_DB_TICK_OPT_SWITCH-1&
PERFENH_P2D_LIMIT_ON_DCH_LOWRATE_SWITCH-1&
PERFENH_BASE_RES_BE_TTI_DELAY_SWITCH-1&
PERFENH_BASE_ADM_CE_TTI2MS_LIMIT_SWITCH-1&
PERFENH_OLPC_SIRTAR_RESEND_SWITCH-0&
PERFENH_F2P_LIMIT_WITH_CS_IU_CON_SWITCH-0&
PERFENH_CS_PS_F2H_RATE_LIMIT_SWITCH-0&
PERFENH_TTI_MC_UPDATE_OPT_SWITCH-0&
PERFENH_HRETRY_OPT_WITH_CM_SWITCH-1&
PERFENH_UL_CHL_CHG_OLPC_OPT_SWITCH1&PERFENH_IUR_CSPS_COMB_OPT_SWITCH-0&
PERFENH_GSMOPGRP_TRANSTOSRNC_SWITCH-0&
PERFENH_INTERRATHO_RETRY_SWITCH-0&
PERFENH_ICR_GSMNCELL_FILTER_SWITCH-0&
PERFENH_AMRC_DELAY_SWITCH-0&
PERFENH_AMRC_DELAY_UE_COMP_SWITCH-0&
PERFENH_SMLC_D2F_ALLOW_SWITCH-0&
PERFENH_CSPS_NO_RATEUP_IN_CONJ_SWITCH0&PERFENH_UE_LTE_MEAS_CAP_SWITCH-1
PerfEnhanceSwitch1

BSC6910 SET UCORRMPARA

WRFD02131103
WRFD020701
WRFD020801
WRFD020802
WRFD020803
WRFD01060903
WRFD02060502
WRFD020303
WRFD020129
WRFD010712
WRFD01060902
WRFD020400
WRFD021400
WRFD021101
WRFD020134
WRFD020203
WRFD010612
WRFD01061403
WRFD020503
WRFD010610

MOCN Mobility
Management
AMR/WB-AMR
Speech Rates Control
Cell ID + RTT
Function Based LCS
OTDOA Based LCS
A-GPS Based LCS
Combination of Two
CS Services and One
PS Service (Except
for Two AMR Speech
Services)
SRNS Relocation
with Hard Handover
Inter-RAT Handover
Based on Coverage
PS Service
Redirection from
UMTS to LTE
Adaptive
Configuration of
Traffic Channel
Power offset for
HSUPA
Combination of One
CS Service and One
PS Service
DRD Introduction
Package
Direct Signaling
Connection Reestablishment
(DSCR)
Dynamic Channel
Configuration Control
(DCCC)
Push to Talk
Inter RNC Soft
Handover
HSUPA Introduction

Meaning:1.
PERFENH_HSUPA_LOC_BASED_SCHEDUL_SWITCH:
Whether to use the algorithm of UE location-based HSUPA
scheduling. When this switch is turned on, the algorithm is used.
When this switch is turned off, the algorithm is not used. 2.
PERFENH_HRETRY_OPT_SWITCH: Whether the algorithm of
channel retry optimization takes effect. When this switch is
turned on, the algorithm takes effect and channel retries are
triggered in all scenarios where the preconditions are met.
However, turning on this switch may increase the CPU usage.
When this switch is turned off, the algorithm does not take effect.
3. PERFENH_IUR_CSPS_RELOC_OPT_SWITCH: Static
relocation policy for CS and PS BE combined services. When
"PsBeProcType" is set to CORRM_SRNSR_PSBE_DSCR: If
this switch is turned on, UEs engaged in CS and PS BE
combined services can initiate static relocation. In this case, the
RNC releases the PS BE services and then originates the static
relocation procedure. If this switch is turned off, such UEs
cannot initiate static relocation. 4.
PERFENH_HSUPA_PO_THROU_MEAS_OPT_SWITCH:
Whether to optimize the throughput measurement control
parameters when
PC_HSUPA_DATA_CH_PO_ADAPTIVE_ADJ_SWITCH of the
"PcSwitch" parameter in the "SET UCORRMALGOSWITCH"
command is turned on. When this switch is turned on, the EDCH throughput is measured every 2400 ms. The hysteresis for
event 4A, suspending time after event 4A is triggered, hysteresis
for event 4B, and suspending time after event 4B is triggered
last for one measurement period. When this switch is turned off,
the E-DCH throughput is measured every 300 ms. The
hysteresis for event 4A, suspending time after event 4A is
triggered, hysteresis for event 4B, and suspending time after
event 4B is triggered last for eight measurement periods. 5.
PERFENH_OLPC_BLER_COEF_ADJUSTOPT: Switch for
choosing the BLER coefficient adjustment scheme for AMR
services. When this switch is turned off, the RNC adjusts the
BLER coefficient based on load reshuffling (LDR) or overload
control (OLC) status. When this switch is turned on, the RNC
adjusts the BLER coefficient based on the cell RTWP and actual
uplink service load reported by the NodeB. 6.
PERFENH_LITTLE_RATE_TIMER_AMEND: Timer after which
the rate of PS BE services whose uplink and downlink channel
types are both DCHs will be adjusted to the low-activity rate.
When this switch is turned off, the value is equal to MAX

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Load Control Feature Parameter Description

Package
WRFD01061209 HSUPA 2ms TTI
Outer Loop Power
Control
HSDPA Introduction
Package
HSUPA HARQ and
Fast UL Scheduling in
Node B

Page 96 of 143

(BeE2FStateTransTimer, BeD2FStateTransTimer). When this
switch is turned on, the value is equal to
BeD2FStateTransTimer. When a BE service rate reduces to the
DCCC rate threshold, the low-activity rate, as substitution to a
D2F transition, is used for the BE service because state
transition has not been enabled or the UE processing CS
services cannot transit to the CELL_FACH state. The timer
value and measurement controls for low-activity rate adjustment
use the corresponding parameter values involved in the D2F
transitions. 7. PERFENH_CS_TRIG_PS_P2D_ZERO_SWITCH:
Whether a PS BE service is limited to 0 kbit/s on the DCH after a
UE that has the PS BE service performs a
CELL_PCH/URA_PCH-to-CELL-DCH (P2D) state transition
triggered by a CS service setup. When this switch is turned off,
the PS BE service is limited to 8 kbit/s on the DCH after the UE
performs a P2D state transition. When this switch is turned on,
the PS BE service is limited to 0 kbit/s on the DCH after the UE
performs a P2D state transition. 8.
PERFENH_FACH_CONG_D2IDLE_SWITCH: Whether the RNC
releases all resources for a UE when the FACH is congested.
When this switch is turned on, the RNC releases all resources
for a UE if the following conditions are met: The UE performs a
CELL_DCH-to-CELL_FACH state transition. The FACH is
congested. The UE is processing a non-real-time PS service
that has a traffic volume of 0 bytes. 9.
PERFENH_P2D_FAIL_RETRY_SWITCH: Whether a UE is
allowed to access an inter-frequency co-coverage cell using
DRD or channel fallback after P2D state transition admission
fails. When this switch is turned off, the UE remains in the
CELL_PCH state after P2D state transition admission fails. 10.
PERFENH_PTT_IUR_D2F_SWITCH: Whether a PTT user can
perform a CELL_DCH-to-CELL_FACH (D2F for short) state
transition when Iur CCH is disabled during a soft handover over
the Iur interface. Assume that this switch is turned on. If the
DRNC cell serves as the best cell, DSCR is triggered. If the
SRNC cell serves as the best cell, D2F is triggered. When this
switch is turned off, the original flow keeps unchanged. 11.
PERFENH_LOW_VELO_OPT_SWITCH: Whether the lowactivity rate algorithm can be used on a UE that uses DCHs in
only the uplink or downlink. When this switch is turned on, the
low-activity rate algorithm can be used on the UE that uses
DCHs in only the uplink or downlink. When this switch is turned
off, the low-activity rate algorithm can be used on the UE that
uses DCHs in both the uplink and downlink. 12.
PERFENH_SRB_FAST_HRETRY_AFTER_DRD_SWITCH:
Whether the RNC triggers channel reconfiguration for the SRBs
to switch from the DCH to an HSPA channel immediately when
the type of a channel for carrying SRBs during a DRD procedure
is limited. When this switch is turned off, channel reconfiguration
is not triggered and the SRBs are carried on the DCH. When this
switch is turned on, the RNC triggers channel reconfiguration for
the SRBs to switch from the DCH to an HSPA channel
immediately after the DRD procedure. 13.
PERFENH_PTT_H2F_OPT_SWITCH: Whether the traffic and
throughput are measured during a state transition from
CELL_DCH to CELL_FACH (D2F for short) when PTT services
are carried on HSPA channels. When this switch is turned off,
the traffic and throughput will not be measured during the D2F
state transition triggered by PTT services. When this switch is
turned on, the traffic and throughput will be measured during the
D2F state transition, which prevents the UE from transiting to
CELL_FACH if the UE has data to transmit. In this case, if data
transmission occurs during the D2F state transition, the RNC
stops the D2F state transition. 14.
PERFENH_IUR_DB_TICK_OPT_SWITCH: Whether the
algorithm for optimizing the method of saving the information
about neighboring cells of a cell under the DRNC during a
handover over Iur is enabled so that the CPU load of the CP
subsystem becomes normal. When this switch is turned off, the
algorithm is disabled and the RNC saves the information about
neighboring cells in the original way. When this switch is turned
on, the algorithm is enabled. 15.
PERFENH_P2D_LIMIT_ON_DCH_LOWRATE_SWITCH:
Whether the PS BE service rate is limited to a low level after the
UE transits from CELL_PCH to CELL_DCH (P2D for short).
When this switch is turned off, the channel for carrying the PS
BE service and the PS BE service rate are not limited after the
UE transits from CELL_PCH to CELL_DCH. When this switch is
turned on, the PE BE service is limited to 8 kbit/s or 0 kbit/s on
the DCH after the UE transits from CELL_PCH to CELL_DCH.
16. PERFENH_BASE_RES_BE_TTI_DELAY_SWITCH:
Whether the RNC starts a delay timer when the algorithm for
fairness-based handovers for differentiated HSUPA TTI users is
enabled. When this switch is turned off, the delay timer does not
start. When this switch is turned on, the RNC starts the delay
timer after the algorithm for fairness-based handovers for
differentiated HSUPA TTI users us used to establish or modify a
throughput measurement. The handover from HSUPPA 2 ms
TTI users to 10 ms HSUPPA TTI users cannot be triggered
when the delay timer is running. 17.
PERFENH_BASE_ADM_CE_TTI2MS_LIMIT_SWITCH:
Whether the RNC considers CE resource congestion status of
the target cell for admitting HSUPA UEs when determining
whether HSUPA services support 2 ms TTI. When this switch is
turned off, the RNC does not consider CE resource congestion
status of the target cell when determining whether the HSUPA
services support 2 ms TTI. When this switch is turned on, the
RNC considers CE resource congestion status of the target cell
when determining whether the HSUPA services support 2 ms
TTI. If the CE resources are congested, only HSUPA 10 ms TTI
UEs are admitted. 18.
PERFENH_OLPC_SIRTAR_RESEND_SWITCH: Whether the
RNC sends the FP data frames that contain the information
element (IE) "Sir Target" to the NodeB after service setup or
reconfiguration succeeds and the NodeB then adjusts inner loop

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Load Control Feature Parameter Description

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power control based on the configured target SIR value and
actual target SIR value. When this switch is turned off, the FP
data frames do not contain the IE "Sir Target". When this switch
is turned on, the RNC sends FP data frames that contain the IE
"Sir Target" to the NodeB for up to four times at an interval of 1s.
19. PERFENH_F2P_LIMIT_WITH_CS_IU_CON_SWITCH:
Whether the RNC allows a UE to set up CS services during a
decision for state transition from CELL_FACH to CELL_PCH or
URA_PCH (F2P). When this switch is turned off, the RNC does
not allow the UE to set up the CS service and continues
performing the decision for F2P state transition if a UE initiates a
CS service during a decision for F2P state transition. When this
switch is turned on, if a UE initiates a CS service during a
decision for F2P state transition, the RNC stops performing the
decision for F2P state transition and allows the UE to set up the
CS service. 20.
PERFENH_CS_PS_F2H_RATE_LIMIT_SWITCH: Whether to
limit the maximum data rate for HSDPA PS services after a CS
service setup triggers an F2D state transition. When this switch
is turned off, the maximum data rate for HSDPA PS services is
limited after a CS service setup triggers an F2D state transition.
When this switch is turned on, the maximum data rate for
HSDPA PS services is unlimited after a CS service setup
triggers an F2D state transition. 21.
PERFENH_TTI_MC_UPDATE_OPT_SWITCH: TTI
reconfiguration optimization switch. When this switch is turned
off, the RNC updates the throughput measurement control
parameter for this algorithm after the handover is complete and
prohibits this algorithm from triggering dynamic TTI shifts from 2
ms to 10 ms in the following 5s. When this switch is turned on,
the RNC does not update the throughput measurement control
parameter for this algorithm if the parameter does not change
after a handover is complete. In this case, the RNC triggers this
algorithm upon receiving a TTI measurement report. 22.
PERFENH_HRETRY_OPT_WITH_CM_SWITCH: Whether to
allow periodic access retry for UEs in compressed mode to the
(directed retry decision) DRD-capable cell when candidate cells
for periodic retry include the current cell and neighboring DRD
cells. When this switch is turned off, periodic access retry for
UEs in compressed mode to the DRD-capable cell is not
allowed. When this switch is turned on, periodic access retry for
UEs in compressed mode to the DRD-capable cell is allowed.
23. PERFENH_UL_CHL_CHG_OLPC_OPT_SWITCH: Whether
to enable normal outer loop power control after D2E
reconfiguration in case of PS hard handover with E2D channel
fallback. When this switch is turned off, normal outer loop power
control is disabled after D2E reconfiguration in case of PS hard
handover with E2D channel fallback. When this switch is turned
on, normal outer loop power control is enabled after D2E
reconfiguration in case of PS hard handover with E2D channel
fallback. 24. PERFENH_IUR_CSPS_COMB_OPT_SWITCH:
Whether to optimize the combined hard handover and SRNS
relocation for CS+PS BE combined services. When this switch is
turned on and the relocation policies for CS and PS services are
different, the serving RNC (SRNC) releases the PS services and
then triggers a combined hard handover and SRNS relocation
for the CS services. When this switch is turned off, the combined
hard handover and SRNS relocation is not optimized. 25.
PERFENH_GSMOPGRP_TRANSTOSRNC_SWITCH: Whether
the drift RNC (DRNC) transfers information about the intra circle
roaming (ICR) license of the cells under the DRNC, and the
operator group and the inter-RAT cell type for neighboring GSM
cells to the SRNC over proprietary information elements (IEs).
When this switch is turned on, the DRNC transfers information
about the ICR license of the cells under the DRNC, and the
operator group and the inter-RAT cell type for neighboring GSM
cells to the SRNC over the private IEs in the Radio Link Setup
Response or Radio Link Addition Response message. When
this switch is turned off, the DRNC does not transfer the
preceding information. 26.
PERFENH_INTERRATHO_RETRY_SWITCH: Whether the
RNC initiates inter-RAT handovers according to the coveragebased inter-RAT periodic measurement report after inter-RAT
handovers fail. When this switch is turned on, the RNC still
processes the coverage-based inter-RAT periodic measurement
report reported by the UE and initiates inter-RAT handovers
after inter-RAT handovers fail. When this switch is turned off, the
RNC does not process the coverage-based inter-RAT periodic
measurement report reported by the UE. 27.
PERFENH_ICR_GSMNCELL_FILTER_SWITCH: When this
switch is turned on, the RNC initiates an inter-RAT handover
towards the neighboring GSM cell whose operator is the same
as the UE's operator. This increases the inter-RAT handover
success rate. 28. PERFENH_AMRC_DELAY_SWITCH:
Whether to delay adjusting the uplink voice service rate raised
by Adaptive Multi-Rate Control (AMRC). When this switch is
turned off, adjusting the uplink voice service rate is not delayed.
When this switch is turned on, adjusting the uplink voice service
rate is delayed. Before a UE sends the first valid voice frame,
the RNC does not adjust the AMR rate for the UE. This avoids
mute voices on some UEs. 29.
PERFENH_AMRC_DELAY_UE_COMP_SWITCH: Scope of
UEs on which adjusting the uplink rate using AMRC is delayed.
When this switch is turned off, the algorithm for delaying
adjusting the uplink rate using AMRC can be enabled on all
UEs. When this switch is turned on, the scope of UEs is set by
running the "ADD UIMEITAC" command. In this case, the CN
must support CS IMEI query. 30.
PERFENH_SMLC_D2F_ALLOW_SWITCH: Whether to allow
state transition from CELL_FACH to CELL_DCH and a location
measurement control message to be sent to the UE when the
RNC receives a RANAP Location Reporting Control message
from the CN and the DRA_PS_BE_STATE_TRANS_SWITCH
switch is turned off. When this switch is turned off, state
transition from CELL_FACH to CELL_DCH is not allowed and

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the RNC does not send a location measurement control
message to the UE. When the switch is turned on, state
transition from CELL_FACH to CELL_DCH is allowed and the
RNC sends a location measurement control message to the UE
after state transition is successful. 31.
PERFENH_CSPS_NO_RATEUP_IN_CONJ_SWITCH: Whether
the RNC prohibits the PS RB reconfiguration triggered by an
uplink or downlink event 4A measurement report if the status is
congested as indicated by Combined Service Power Resource
Congest State. When this switch is turned off, the RNC allows
the PS RB reconfiguration triggered by an event 4A
measurement report. When this switch is turned on, the RNC
prohibits the PS RB reconfiguration triggered by an uplink or
downlink event 4A measurement report if the status is
congested as indicated by Combined Service Power Resource
Congest State. 32. PERFENH_UE_LTE_MEAS_CAP_SWITCH:
Whether to parse E-UTRAN measurement capabilities by
protocols. As specified by protocols, all UTRAN frequency bands
supported by a UE have the same E-UTRAN measurement
capability. When this switch is turned on, the E-UTRAN
measurement capability carried in the IE "UERadioAccessCapabBandFDD3" applies to all UTRAN frequency
bands supported by the UE. When this switch is turned off, the
E-UTRAN measurement capability carried in the IE "UERadioAccessCapabBandFDD3" applies only to the frequency
band serving the UE.
GUI Value
Range:PERFENH_HSUPA_LOC_BASED_SCHEDUL_SWITCH,
PERFENH_HRETRY_OPT_SWITCH,
PERFENH_IUR_CSPS_RELOC_OPT_SWITCH,
PERFENH_HSUPA_PO_THROU_MEAS_OPT_SWITCH,
PERFENH_OLPC_BLER_COEF_ADJUSTOPT,
PERFENH_LITTLE_RATE_TIMER_AMEND,
PERFENH_CS_TRIG_PS_P2D_ZERO_SWITCH,
PERFENH_FACH_CONG_D2IDLE_SWITCH,
PERFENH_P2D_FAIL_RETRY_SWITCH,
PERFENH_PTT_IUR_D2F_SWITCH,
PERFENH_LOW_VELO_OPT_SWITCH,
PERFENH_SRB_FAST_HRETRY_AFTER_DRD_SWITCH,
PERFENH_PTT_H2F_OPT_SWITCH,
PERFENH_IUR_DB_TICK_OPT_SWITCH,
PERFENH_P2D_LIMIT_ON_DCH_LOWRATE_SWITCH,
PERFENH_BASE_RES_BE_TTI_DELAY_SWITCH,
PERFENH_BASE_ADM_CE_TTI2MS_LIMIT_SWITCH,
PERFENH_OLPC_SIRTAR_RESEND_SWITCH,
PERFENH_F2P_LIMIT_WITH_CS_IU_CON_SWITCH,
PERFENH_CS_PS_F2H_RATE_LIMIT_SWITCH,
PERFENH_TTI_MC_UPDATE_OPT_SWITCH,
PERFENH_HRETRY_OPT_WITH_CM_SWITCH,
PERFENH_UL_CHL_CHG_OLPC_OPT_SWITCH,
PERFENH_IUR_CSPS_COMB_OPT_SWITCH,
PERFENH_GSMOPGRP_TRANSTOSRNC_SWITCH,
PERFENH_INTERRATHO_RETRY_SWITCH,
PERFENH_ICR_GSMNCELL_FILTER_SWITCH,
PERFENH_AMRC_DELAY_SWITCH,
PERFENH_AMRC_DELAY_UE_COMP_SWITCH,
PERFENH_SMLC_D2F_ALLOW_SWITCH,
PERFENH_CSPS_NO_RATEUP_IN_CONJ_SWITCH,
PERFENH_UE_LTE_MEAS_CAP_SWITCH
Unit:None
Actual Value
Range:PERFENH_HSUPA_LOC_BASED_SCHEDUL_SWITCH,
PERFENH_HRETRY_OPT_SWITCH,
PERFENH_IUR_CSPS_RELOC_OPT_SWITCH,
PERFENH_HSUPA_PO_THROU_MEAS_OPT_SWITCH,
PERFENH_OLPC_BLER_COEF_ADJUSTOPT,
PERFENH_LITTLE_RATE_TIMER_AMEND,
PERFENH_CS_TRIG_PS_P2D_ZERO_SWITCH,
PERFENH_FACH_CONG_D2IDLE_SWITCH,
PERFENH_P2D_FAIL_RETRY_SWITCH,
PERFENH_PTT_IUR_D2F_SWITCH,
PERFENH_LOW_VELO_OPT_SWITCH,
PERFENH_SRB_FAST_HRETRY_AFTER_DRD_SWITCH,
PERFENH_PTT_H2F_OPT_SWITCH,
PERFENH_IUR_DB_TICK_OPT_SWITCH,
PERFENH_P2D_LIMIT_ON_DCH_LOWRATE_SWITCH,
PERFENH_BASE_RES_BE_TTI_DELAY_SWITCH,
PERFENH_BASE_ADM_CE_TTI2MS_LIMIT_SWITCH,
PERFENH_OLPC_SIRTAR_RESEND_SWITCH,
PERFENH_F2P_LIMIT_WITH_CS_IU_CON_SWITCH,
PERFENH_CS_PS_F2H_RATE_LIMIT_SWITCH,
PERFENH_TTI_MC_UPDATE_OPT_SWITCH,
PERFENH_HRETRY_OPT_WITH_CM_SWITCH,
PERFENH_UL_CHL_CHG_OLPC_OPT_SWITCH,
PERFENH_IUR_CSPS_COMB_OPT_SWITCH,
PERFENH_GSMOPGRP_TRANSTOSRNC_SWITCH,
PERFENH_INTERRATHO_RETRY_SWITCH,
PERFENH_ICR_GSMNCELL_FILTER_SWITCH,
PERFENH_AMRC_DELAY_SWITCH,
PERFENH_AMRC_DELAY_UE_COMP_SWITCH,
PERFENH_SMLC_D2F_ALLOW_SWITCH,
PERFENH_CSPS_NO_RATEUP_IN_CONJ_SWITCH,
PERFENH_UE_LTE_MEAS_CAP_SWITCH
Default
Value:PERFENH_HSUPA_LOC_BASED_SCHEDUL_SWITCH
0&PERFENH_HRETRY_OPT_SWITCH1&PERFENH_IUR_CSPS_RELOC_OPT_SWITCH0&PERFENH_HSUPA_PO_THROU_MEAS_OPT_SWITCH1&PERFENH_OLPC_BLER_COEF_ADJUSTOPT0&PERFENH_LITTLE_RATE_TIMER_AMEND-1&
PERFENH_CS_TRIG_PS_P2D_ZERO_SWITCH-0&
PERFENH_FACH_CONG_D2IDLE_SWITCH-0&
PERFENH_P2D_FAIL_RETRY_SWITCH-1&
PERFENH_PTT_IUR_D2F_SWITCH-0&

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PERFENH_LOW_VELO_OPT_SWITCH-0&
PERFENH_SRB_FAST_HRETRY_AFTER_DRD_SWITCH-0&
PERFENH_PTT_H2F_OPT_SWITCH-1&
PERFENH_IUR_DB_TICK_OPT_SWITCH-1&
PERFENH_P2D_LIMIT_ON_DCH_LOWRATE_SWITCH-1&
PERFENH_BASE_RES_BE_TTI_DELAY_SWITCH-1&
PERFENH_BASE_ADM_CE_TTI2MS_LIMIT_SWITCH-1&
PERFENH_OLPC_SIRTAR_RESEND_SWITCH-0&
PERFENH_F2P_LIMIT_WITH_CS_IU_CON_SWITCH-0&
PERFENH_CS_PS_F2H_RATE_LIMIT_SWITCH-0&
PERFENH_TTI_MC_UPDATE_OPT_SWITCH-0&
PERFENH_HRETRY_OPT_WITH_CM_SWITCH-1&
PERFENH_UL_CHL_CHG_OLPC_OPT_SWITCH1&PERFENH_IUR_CSPS_COMB_OPT_SWITCH-0&
PERFENH_GSMOPGRP_TRANSTOSRNC_SWITCH-0&
PERFENH_INTERRATHO_RETRY_SWITCH-0&
PERFENH_ICR_GSMNCELL_FILTER_SWITCH-0&
PERFENH_AMRC_DELAY_SWITCH-0&
PERFENH_AMRC_DELAY_UE_COMP_SWITCH-0&
PERFENH_SMLC_D2F_ALLOW_SWITCH-0&
PERFENH_CSPS_NO_RATEUP_IN_CONJ_SWITCH0&PERFENH_UE_LTE_MEAS_CAP_SWITCH-1
PreemptAlgoSwitch

BSC6900 SET UQUEUEPREEMPT

WRFD010505

Queuing and PreEmption

Meaning:Whether preemption is supported. When this switch is
turned on, the RNC allows privileged users or services to
preempt cell resources from the users or services with the
preempted attributes and lower priority in the case of cell
resource insufficiency. When this switch is turned off, the RNC
terminates the service for the user due to the failure in cell
resource application.
GUI Value Range:OFF, ON
Unit:None
Actual Value Range:OFF, ON
Default Value:OFF

PreemptAlgoSwitch

BSC6910 SET UQUEUEPREEMPT

WRFD010505

Queuing and PreEmption

Meaning:Whether preemption is supported. When this switch is
turned on, the RNC allows privileged users or services to
preempt cell resources from the users or services with the
preempted attributes and lower priority in the case of cell
resource insufficiency. When this switch is turned off, the RNC
terminates the service for the user due to the failure in cell
resource application.
GUI Value Range:OFF, ON
Unit:None
Actual Value Range:OFF, ON
Default Value:OFF

PreemptRefArpSwitch

BSC6900 SET UQUEUEPREEMPT

WRFD010505

Queuing and PreEmption

Meaning:Whether ARP-based preemption between TCs is
supported. When this switch is turned on and the
comprehensive priority is based on the TC, that is, the
"PriorityReference" parameter in the "SET UUSERPRIORITY"
command is set to TrafficClass, preemption is supported only
when the preempting service has a higher comprehensive
priority and ARP priority than the preempted service does.
GUI Value Range:OFF, ON
Unit:None
Actual Value Range:OFF, ON
Default Value:ON

PreemptRefArpSwitch

BSC6910 SET UQUEUEPREEMPT

WRFD010505

Queuing and PreEmption

Meaning:Whether ARP-based preemption between TCs is
supported. When this switch is turned on and the
comprehensive priority is based on the TC, that is, the
"PriorityReference" parameter in the "SET UUSERPRIORITY"
command is set to TrafficClass, preemption is supported only
when the preempting service has a higher comprehensive
priority and ARP priority than the preempted service does.
GUI Value Range:OFF, ON
Unit:None
Actual Value Range:OFF, ON
Default Value:ON

PsBERrcPreemptVulnerable

BSC6900 SET UQUEUEPREEMPT

WRFD010505

Queuing and PreEmption

Meaning:Whether to activate the PS BE RRC preemption
algorithm for a cell. When this switch is turned on, if the
conversational services (including the calling and called parties)
fail to be allocated resources at the RRC connection setup
phase or RAB setup phase and fail to preempt resources of
other services (such as PS RABs), the conversational services
can preempt the resources of PS BE services having only the
RRC connections.
GUI Value Range:OFF, ON
Unit:None
Actual Value Range:OFF, ON
Default Value:OFF

PsBERrcPreemptVulnerable

BSC6910 SET UQUEUEPREEMPT

WRFD010505

Queuing and PreEmption

Meaning:Whether to activate the PS BE RRC preemption
algorithm for a cell. When this switch is turned on, if the
conversational services (including the calling and called parties)
fail to be allocated resources at the RRC connection setup
phase or RAB setup phase and fail to preempt resources of
other services (such as PS RABs), the conversational services
can preempt the resources of PS BE services having only the
RRC connections.
GUI Value Range:OFF, ON
Unit:None
Actual Value Range:OFF, ON
Default Value:OFF

NbmWpsAlgorithmSwitch

BSC6900 SET UWPSALGO

WRFD021104

Emergency Call

Meaning:Whether the WPS algorithm is supported. WPS
(Wireless Priority Service) is NS/EP (National
Security/Emergency Preparedness) AMR conversation service
controlled by White House of USA. NCS is authorized to
manage the execution of the WPS project.

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GUI Value Range:ALGORITHM_OFF(WPS Algorithm Switch
OFF), ALGORITHM_ON(WPS Algorithm Switch ON)
Unit:None
Actual Value Range:ALGORITHM_OFF, ALGORITHM_ON
Default Value:ALGORITHM_OFF(WPS Algorithm Switch OFF)
NbmWpsAlgorithmSwitch

BSC6910 SET UWPSALGO

WRFD021104

Emergency Call

Meaning:Whether the WPS algorithm is supported. WPS
(Wireless Priority Service) is NS/EP (National
Security/Emergency Preparedness) AMR conversation service
controlled by White House of USA. NCS is authorized to
manage the execution of the WPS project.
GUI Value Range:ALGORITHM_OFF(WPS Algorithm Switch
OFF), ALGORITHM_ON(WPS Algorithm Switch ON)
Unit:None
Actual Value Range:ALGORITHM_OFF, ALGORITHM_ON
Default Value:ALGORITHM_OFF(WPS Algorithm Switch OFF)

NbmWpsAlgorithmPriority

BSC6900 SET UWPSALGO

WRFD021104

Emergency Call

Meaning:This parameter is used to identify WPS users with
priority. For instance, if priorities 3, 4, 5, and 6 are selected,
users with priorities are regarded as WPS users.
GUI Value Range:PRIORITY1(WPS USER PRIORITY 1),
PRIORITY2(WPS USER PRIORITY 2), PRIORITY3(WPS USER
PRIORITY 3), PRIORITY4(WPS USER PRIORITY 4),
PRIORITY5(WPS USER PRIORITY 5), PRIORITY6(WPS USER
PRIORITY 6), PRIORITY7(WPS USER PRIORITY 7),
PRIORITY8(WPS USER PRIORITY 8), PRIORITY9(WPS USER
PRIORITY 9), PRIORITY10(WPS USER PRIORITY 10),
PRIORITY11(WPS USER PRIORITY 11), PRIORITY12(WPS
USER PRIORITY 12), PRIORITY13(WPS USER PRIORITY 13),
PRIORITY14(WPS USER PRIORITY 14)
Unit:None
Actual Value Range:PRIORITY1, PRIORITY2, PRIORITY3,
PRIORITY4, PRIORITY5, PRIORITY6, PRIORITY7,
PRIORITY8, PRIORITY9, PRIORITY10, PRIORITY11,
PRIORITY12, PRIORITY13, PRIORITY14,
Default Value:PRIORITY1-0&PRIORITY2-1&PRIORITY31&PRIORITY4-1&PRIORITY5-1&PRIORITY6-1&PRIORITY70&PRIORITY8-0&PRIORITY9-0&PRIORITY10-0&PRIORITY11
0&PRIORITY12-0&PRIORITY13-0&PRIORITY14-0

NbmWpsAlgorithmPriority

BSC6910 SET UWPSALGO

WRFD021104

Emergency Call

Meaning:This parameter is used to identify WPS users with
priority. For instance, if priorities 3, 4, 5, and 6 are selected,
users with priorities are regarded as WPS users.
GUI Value Range:PRIORITY1(WPS USER PRIORITY 1),
PRIORITY2(WPS USER PRIORITY 2), PRIORITY3(WPS USER
PRIORITY 3), PRIORITY4(WPS USER PRIORITY 4),
PRIORITY5(WPS USER PRIORITY 5), PRIORITY6(WPS USER
PRIORITY 6), PRIORITY7(WPS USER PRIORITY 7),
PRIORITY8(WPS USER PRIORITY 8), PRIORITY9(WPS USER
PRIORITY 9), PRIORITY10(WPS USER PRIORITY 10),
PRIORITY11(WPS USER PRIORITY 11), PRIORITY12(WPS
USER PRIORITY 12), PRIORITY13(WPS USER PRIORITY 13),
PRIORITY14(WPS USER PRIORITY 14)
Unit:None
Actual Value Range:PRIORITY1, PRIORITY2, PRIORITY3,
PRIORITY4, PRIORITY5, PRIORITY6, PRIORITY7,
PRIORITY8, PRIORITY9, PRIORITY10, PRIORITY11,
PRIORITY12, PRIORITY13, PRIORITY14,
Default Value:PRIORITY1-0&PRIORITY2-1&PRIORITY31&PRIORITY4-1&PRIORITY5-1&PRIORITY6-1&PRIORITY70&PRIORITY8-0&PRIORITY9-0&PRIORITY10-0&PRIORITY11
0&PRIORITY12-0&PRIORITY13-0&PRIORITY14-0

CsP2DPreemptSwitch

BSC6900 SET UQUEUEPREEMPT

WRFD010505

Queuing and PreEmption

Meaning:Whether a UE can preempt resources occupied by PS
BE services after the cell resource admission fails under the
following conditions: -The UE moves from CELL_PCH or
URA_PCH to CELL_DCH (P2D). -The RRC_CELL_UPDATE
message sent by the UE contains the cause value of Originating
Conversational Call or Terminating Conversational Call.
GUI Value Range:OFF, ON
Unit:None
Actual Value Range:OFF, ON
Default Value:OFF

CsP2DPreemptSwitch

BSC6910 SET UQUEUEPREEMPT

WRFD010505

Queuing and PreEmption

Meaning:Whether a UE can preempt resources occupied by PS
BE services after the cell resource admission fails under the
following conditions: -The UE moves from CELL_PCH or
URA_PCH to CELL_DCH (P2D). -The RRC_CELL_UPDATE
message sent by the UE contains the cause value of Originating
Conversational Call or Terminating Conversational Call.
GUI Value Range:OFF, ON
Unit:None
Actual Value Range:OFF, ON
Default Value:OFF

QueueAlgoSwitch

BSC6900 SET UQUEUEPREEMPT

WRFD010505

Queuing and PreEmption

Meaning:Whether queuing is supported. When this switch is
turned on and a queuing-capable PS user initiates a call, the
RNC tries to enable this user to join the queue to increase the
access success rate if cell resources are insufficient and
preemption fails. When this switch is turned off, queuing is not
supported if cell resources are sufficient.
GUI Value Range:OFF, ON
Unit:None
Actual Value Range:OFF, ON
Default Value:OFF

QueueAlgoSwitch

BSC6910 SET UQUEUEPREEMPT

WRFD010505

Queuing and PreEmption

Meaning:Whether queuing is supported. When this switch is
turned on and a queuing-capable PS user initiates a call, the
RNC tries to enable this user to join the queue to increase the
access success rate if cell resources are insufficient and
preemption fails. When this switch is turned off, queuing is not

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supported if cell resources are sufficient.
GUI Value Range:OFF, ON
Unit:None
Actual Value Range:OFF, ON
Default Value:OFF
PollTimerLen

BSC6900 SET UQUEUEPREEMPT

WRFD010505

Queuing and PreEmption

Meaning:Interval at which a queue is polled. The queue is polled
at an interval of the period specified by this parameter. During
each poll, all the expired users are removed from the queue and
this user fails in access. Among all the unexpired users,
resources are allocated by priorities in descending order. If
resource allocation is successful, the user succeeds in access
and traverse of this queue is stopped. Otherwise, the rest users
are traversed until all the unexpired users go through this.
GUI Value Range:1~80
Unit:10ms
Actual Value Range:10~800
Default Value:50

PollTimerLen

BSC6910 SET UQUEUEPREEMPT

WRFD010505

Queuing and PreEmption

Meaning:Interval at which a queue is polled. The queue is polled
at an interval of the period specified by this parameter. During
each poll, all the expired users are removed from the queue and
this user fails in access. Among all the unexpired users,
resources are allocated by priorities in descending order. If
resource allocation is successful, the user succeeds in access
and traverse of this queue is stopped. Otherwise, the rest users
are traversed until all the unexpired users go through this.
GUI Value Range:1~80
Unit:10ms
Actual Value Range:10~800
Default Value:50

QueueLen

BSC6900 SET UQUEUEPREEMPT

WRFD010505

Queuing and PreEmption

Meaning:Length of a queue. The total number of users in queue
of each cell should not be greater than the value of this
parameter. When a new user needs queuing, 1) If the queue has
vacancy, the user joins the queue immediately. 2) If the queue is
full and there is a user whose queue time exceeds the allowed
maximum queue time, this user is out of the queue and access
fails. At the same time, the new user joins the queue. 3) If the
queue has a user whose priority is lower than that of the new
user, the user in the queue with the lowest priority is out of the
queue and access fails. At the same time, the new user joins the
queue. 4) For other situations, the user cannot join the queue.
GUI Value Range:5~20
Unit:None
Actual Value Range:5~20
Default Value:5

QueueLen

BSC6910 SET UQUEUEPREEMPT

WRFD010505

Queuing and PreEmption

Meaning:Length of a queue. The total number of users in queue
of each cell should not be greater than the value of this
parameter. When a new user needs queuing, 1) If the queue has
vacancy, the user joins the queue immediately. 2) If the queue is
full and there is a user whose queue time exceeds the allowed
maximum queue time, this user is out of the queue and access
fails. At the same time, the new user joins the queue. 3) If the
queue has a user whose priority is lower than that of the new
user, the user in the queue with the lowest priority is out of the
queue and access fails. At the same time, the new user joins the
queue. 4) For other situations, the user cannot join the queue.
GUI Value Range:5~20
Unit:None
Actual Value Range:5~20
Default Value:5

MaxQueueTimeLen

BSC6900 SET UQUEUEPREEMPT

WRFD010505

Queuing and PreEmption

Meaning:Maximum queue time of a user after initiating a call due
to cell resource insufficiency. If cell resources are still insufficient
after the time specified by this parameter elapses, the user
access is denied.
GUI Value Range:1~60
Unit:s
Actual Value Range:1~60
Default Value:5

MaxQueueTimeLen

BSC6910 SET UQUEUEPREEMPT

WRFD010505

Queuing and PreEmption

Meaning:Maximum queue time of a user after initiating a call due
to cell resource insufficiency. If cell resources are still insufficient
after the time specified by this parameter elapses, the user
access is denied.
GUI Value Range:1~60
Unit:s
Actual Value Range:1~60
Default Value:5

PerfEnhanceSwitch

BSC6900 SET UNBMPARA

WRFD020101
WRFD020402
WRFD010612
WRFD010401
WRFD150222
WRFD020131

Admission Control
Measurement Based
Direct Retry
HSUPA Introduction
Package
System Information
Broadcasting
HSUPA Time Division
Scheduling
Optimization of R99
and HSUPA Users
Fairness

Meaning:1. PERFENH_R99_BRDCSTHSPA_SWITCH
(R99CellBroadcastHspaCapSwitch): When this switch is turned
on, R99 cells broadcast HSPA capability of neighboring cells in
a system information message. 2.
PERFENH_FACH_USER_NUM_SWITCH(Fach User Select
Switch): This switch is configurable in the current version.The
RNC, however,does not use this switch any longer.Later
versions will not support this switch.Therefore,users are not
advised to use this switch. 3.
PERFENH_MBDR_LOADCOND_OPT_SWITCH(Optimized
MBDR Load Calculation Algorithm Switch): When this switch is
turned on, the DL transmit power in a cell is calculated using the
following formula:Percentage of the DL transmit power in a cell =
Percentage of the non-HSPA transmit power + Percentage of
the HSDPA guaranteed bit power (GBP) + Reserved power
coefficient for DL common channels + Reserved power factor for
DL MBMS services + Reserved power factor for DL HSUPA
users.If UL or DL load in a neighboring cell exceeds the value of
InterFreqUlMbdrTrigThreshold or InterFreqDlMbdrTrigThreshold

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(in the ADD UCELLMBDRINTERFREQ command), handover to
this neighboring cell cannot be performed. When this switch is
turned off, the percentage of the HSDPA GBP is not considered
during the calculation of the DL transmit power in a cell, and the
original algorithm is used for selecting a neighboring cell using
MBDR. 4.
PERFENH_CALALGO_FOR_HSUPAENU_OPT_SWITCH:
Whether to optimize the calculation results of equivalent HSUPA
UEs. When this switch is turned on, the optimized calculation
results can accurately reflect the uplink cell load. 5.
PERFENH_HSUPA_CCH_PREEMPT_USER: Whether to allow
resource preemption of common users for HSUPA common
channels to ensure that the code resources are allocated to the
left. 6. PERFENH_CE_RLS_ADM_OPT_SWITCH: Whether to
activate the RLS CE-based admission optimization algorithm.
When this switch is turned on, a local cell group consumes an
RLS CE if multiple RLs occupy more than one local cell group,
no matter whether the UE uses the DCH or EDCH under a
NodeB. When this switch is turned off, all local cell groups
consume an RLS CE if multiple RLs occupy more than one local
cell group, no matter whether the UE uses the DCH or EDCH
under a NodeB. 7.
PERFENH_DTCH_FACH_CONG_D2I_SWITCH: When this
switch is turned on and DTCHs are congested, the RNC transits
UEs that are in the CELL_DCH state and do not process
services to the idle mode. This parameter is an advanced
parameter. To modify this parameter, contact Huawei Customer
Service Center for technical support. 8.
PERFENH_HSPA_CAPABLITY_NOT_BRD_SWITCH: Whether
not to send HSPA capability indication messages in SIB5. 9.
PERFENH_SYSINFO_64FRAME_SWITCH: Whether the RNC
sends system information in a cell at a 64-frame scheduling
period to improve the scheduling efficiency. When this switch is
turned on, the 64-frame-period scheduling is used. When this
switch is turned off, the 64-frame-period scheduling is not used.
10. PERFENH_SIB7MIB_COMBINE_SWITCH: Whether SIB7
and MIB are combined when the RNC sends system information
in a cell. When this switch is turned on, SIB7 and MIB
transmitted from the cell are combined to one system
information to save air interface resources and improve
scheduling efficiency. When this switch is turned off, SIB7 and
MIB transmitted from the cell are two independent messages.
11. PERFENH_HSPA_CODE_ALLOC_OPT_SWITCH: Whether
channel codes for HSPA services are pre-allocated during cell
setup. When this switch is turned on, channel codes are
allocated for the HS-SCCH, E-AGCH, E-RGCH, and E-HICH
immediately after the cell is set up.When this switch is turned off,
channel codes are allocated only when HSPA services are
established. 12.
PERFENH_R99UPA_FAIRNESS_USR_SEL_SWITCH:
Whether the R99 and HSUPA fairness algorithm reduces the BE
service rate of only the users whose both uplink and downlink
services are carried on R99 channels. When this switch is
turned off, the algorithm reduces the BE service rate of users
whose uplink services are carried on R99 channels and
downlink services are carried on R99 or HSDPA channels.
When this switch is turned on, the algorithm reduces the BE
service rate of only the users whose uplink and downlink
services are carried on R99 channels. 13.
PERFENH_HSPDSCH_SF_FORCEALLOC_SWITCH:
PERFENH_HSPDSCH_SF_FORCEALLOC_SWITCH: Whether
the last vacant SF16 code is used as the HS-PDSCH code when
HSDPA has been activated. When this switch is turned on and
HSDPA has been activated, no matter whether the last SF16
code is vacant, the RNC repeatedly attempts to allocate this
code to the HS-PDSCH This improves the SF spreading code
usage. If the HS-PDSCH setup fails, the RNC allocates the last
vacant SF16 code to the HS-PDSCH. When this switch is turned
off and HSDPA has been activated, the RNC allocates the last
vacant SF16 code first to the HS-PDSCH. This improves the
HSDPA activation efficiency. 14.
PERFENH_OLC_REJ_F2DDCCC_SWITCH: Whether to prohibit
the DCCC-triggered state transition from CELL_FACH to
CELL_DCH (F2D for short) when a cell is in the overload control
(OLC) state. When this switch is turned off, the RNC allows the
DCCC-triggered F2D state transition. When this switch is turned
on, the RNC does not support the DCCC-triggered F2D state
transition. 15. PERFENH_BGNOISE_QUICK_UPT_SWITCH:
Whether the background noise one-time quick update algorithm
is enabled. When this switch is turned on, upon receiving the
RTWP report, the RNC updates the background noise value
based on the common measurement report if no UEs in the
CELL_DCH state are served by the cell. When this switch is
turned off, upon receiving the RTWP report, the RNC does not
update the background noise value based on the command
measurement report that is reported when the Uu interface
carries no load. 16. PERFENH_HRNTI_OPT_SWITCH: Whether
HRNTI adopts an optimized algorithm. When this switch is
turned on, the hamming distance between the HRNTI identifiers
distributed by the RNC is equal to or larger than 4, which
effectively avoids incorrect demodulation. When this switch is
turned off, the hamming distance between the HRNTI identifiers
distributed by the RNC is equal to or larger than 1. 17.
PERFENH_FDPCH_FAULTY_RECOVER_SWITCH: Whether
the fault recovery function is available for F-DPCH codes. When
this switch is turned on, the RNC checks the usage of F-DPCH
codes periodically or when SF code resource allocation fails and
releases the unexpectedly used F-DPCH codes. When this
switch is turned off, the RNC does not check the usage of FDPCH codes and restores the abnormal F-DPCH codes. 18.
PERFENH_CCH_DLCODE_RESERV_SWITCH: Whether the
channel codes released by a common channel are reserved
during reestablishment of the common channel so that the
reestablished common channel can use the same channel
codes after cell setup. When this switch is turned on, the

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channel codes released by a common channel are reserved
during reestablishment of the common channel. That is, the
reestablished common channel uses the same channel codes
after cell setup. When this switch is turned off, the channel
codes released by a common channel are not reserved during
reestablishment of the common channel. That is, the
reestablished common channel uses different channel codes
after cell setup. 19.
PERFENH_SMALL_RATE_PS_FORCE_ADM_SWITCH:
Whether the RNC makes an admission decision on RAB setup
when the resources required by RAB setup for a low-rate PS
user do not outnumber the resources used for RRC connection
setup. When this switch is turned on, the RNC makes an
admission decision on RAB setup. See the [CMD]ADD
UCELLCAC[/CMD] command For details about relevant
thresholds. When this switch is turned off, the RNC does not
make an admission decision on RAB setup. That is, the RNC
always accepts the RAB setup requests. A low-rate PS user is a
user whose SF corresponding to RAB setup is equal to or larger
than the SF reserved for a handover. The SF reserved for a
handover can be configured by the UlHoCeResvSf and
DlHoCeCodeResvSf parameters in the [CMD]ADD UCELLACAC
[/CMD] command. 20.
PERFENH_HSDPA_DLPWR_ADM_OPT_SWITCH: Whether
the HSDPA power increment is considered during downlink
power admission for HSDPA users. The HSDPA power
increment is considered during downlink power admission for
HSDPA users only when this switch is turned off and the
HSDPA_GBP_MEAS switch under the "NBMCacAlgoSwitch"
parameter in the "ADD UCELLALGOSWITCH" is turned on.
When this switch is turned on, the HSDPA power increment is
always considered during downlink power admission for HSDPA
users. 21. PERFENH_TD_ALIGN_RRC_EFFECT: Whether
alignment using chip offset configurations for HSUPA time
division scheduling takes effect in the RRC connection setup
phase. OFF: This switch is turned off. Alignment using chip
offset configurations for HSUPA time division scheduling does
not take effect in the RRC connection setup phase. ON: This
switch is turned on. Alignment using chip offset configurations
for HSUPA time division scheduling takes effect in the RRC
connection setup phase. 22.
PERFENH_DEACELL_PFMRSV_SWITCH: Whether to reserve
the cell measurement set after deactivating a cell. 0: This switch
is turned off. The cell measurement set is deleted after cell
deactivation. 1: This switch is turned on. After cell deactivation,
the cell measurement set is reserved and the unavailable
duration for the cell caused by deactivation is measured by the
VS.Cell.UnavailTime counter. 23.
PERFENH_BGNOISE_UPT_OPTIMIZE_SWITCH: Accuracy at
which the RNC calculates the background noise. 1: This switch
is turned on. The RNC calculates background noise at a high
accuracy. 0: This switch is turned off. The RNC calculates
background noise at a low accuracy. 24.
PERFENH_INTERRATHO_CAC_OPT_IN_LDR_SWITCH:
Whether to admit UEs in LDR status after incoming inter-RAT
handovers. 1: This switch is turned on. The RNC admits UEs in
LDR status after incoming inter-RAT handovers. 2: This switch is
turned off. The RNC does not admit UEs in LDR status after
incoming inter-RAT handovers. 25.
PERFENH_CSFBUSER_CAC_OPT_IN_LDR_SWITCH:
Whether the cell LDR status is considered during a CSFB user
admission. 1: This switch is turned on. The cell LDR status is not
considered during a CSFB user admission. 2: This switch is
turned off. The cell LDR status is considered during a CSFB
user admission.
GUI Value Range:PERFENH_R99_BRDCSTHSPA_SWITCH,
PERFENH_FACH_USER_NUM_SWITCH,
PERFENH_MBDR_LOADCOND_OPT_SWITCH,
PERFENH_CALALGO_FOR_HSUPAENU_OPT_SWITCH,
PERFENH_HSUPA_CCH_PREEMPT_USER,
PERFENH_CE_RLS_ADM_OPT_SWITCH,
PERFENH_DTCH_FACH_CONG_D2I_SWITCH,
PERFENH_HSPA_CAPABLITY_NOT_BRD_SWITCH,
PERFENH_SYSINFO_64FRAME_SWITCH,
PERFENH_SIB7MIB_COMBINE_SWITCH,
PERFENH_HSPA_CODE_ALLOC_OPT_SWITCH,
PERFENH_R99UPA_FAIRNESS_USR_SEL_SWITCH,
PERFENH_HSPDSCH_SF_FORCEALLOC_SWITCH,
PERFENH_OLC_REJ_F2DDCCC_SWITCH,
PERFENH_BGNOISE_QUICK_UPT_SWITCH,
PERFENH_HRNTI_OPT_SWITCH,
PERFENH_FDPCH_FAULTY_RECOVER_SWITCH,
PERFENH_CCH_DLCODE_RESERV_SWITCH,
PERFENH_SMALL_RATE_PS_FORCE_ADM_SWITCH,
PERFENH_HSDPA_DLPWR_ADM_OPT_SWITCH,
PERFENH_TD_ALIGN_RRC_EFFECT,
PERFENH_DEACELL_PFMRSV_SWITCH,
PERFENH_BGNOISE_UPT_OPTIMIZE_SWITCH,
PERFENH_INTERRATHO_CAC_OPT_IN_LDR_SWITCH,
PERFENH_CSFBUSER_CAC_OPT_IN_LDR_SWITCH
Unit:None
Actual Value Range:PERFENH_R99_BRDCSTHSPA_SWITCH,
PERFENH_FACH_USER_NUM_SWITCH,
PERFENH_MBDR_LOADCOND_OPT_SWITCH,
PERFENH_CALALGO_FOR_HSUPAENU_OPT_SWITCH,
PERFENH_HSUPA_CCH_PREEMPT_USER,
PERFENH_CE_RLS_ADM_OPT_SWITCH,
PERFENH_DTCH_FACH_CONG_D2I_SWITCH,
PERFENH_HSPA_CAPABLITY_NOT_BRD_SWITCH,
PERFENH_SYSINFO_64FRAME_SWITCH,
PERFENH_SIB7MIB_COMBINE_SWITCH,
PERFENH_HSPA_CODE_ALLOC_OPT_SWITCH,
PERFENH_R99UPA_FAIRNESS_USR_SEL_SWITCH,
PERFENH_HSPDSCH_SF_FORCEALLOC_SWITCH,

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PERFENH_OLC_REJ_F2DDCCC_SWITCH,
PERFENH_BGNOISE_QUICK_UPT_SWITCH,
PERFENH_HRNTI_OPT_SWITCH,
PERFENH_FDPCH_FAULTY_RECOVER_SWITCH,
PERFENH_CCH_DLCODE_RESERV_SWITCH,
PERFENH_SMALL_RATE_PS_FORCE_ADM_SWITCH,
PERFENH_HSDPA_DLPWR_ADM_OPT_SWITCH,
PERFENH_TD_ALIGN_RRC_EFFECT,
PERFENH_DEACELL_PFMRSV_SWITCH,
PERFENH_BGNOISE_UPT_OPTIMIZE_SWITCH,
PERFENH_INTERRATHO_CAC_OPT_IN_LDR_SWITCH,
PERFENH_CSFBUSER_CAC_OPT_IN_LDR_SWITCH
Default Value:PERFENH_R99_BRDCSTHSPA_SWITCH0&PERFENH_FACH_USER_NUM_SWITCH0&PERFENH_MBDR_LOADCOND_OPT_SWITCH0&PERFENH_CALALGO_FOR_HSUPAENU_OPT_SWITCH
0&PERFENH_HSUPA_CCH_PREEMPT_USER1&PERFENH_CE_RLS_ADM_OPT_SWITCH0&PERFENH_DTCH_FACH_CONG_D2I_SWITCH0&PERFENH_HSPA_CAPABLITY_NOT_BRD_SWITCH0&PERFENH_SYSINFO_64FRAME_SWITCH0&PERFENH_SIB7MIB_COMBINE_SWITCH0&PERFENH_HSPA_CODE_ALLOC_OPT_SWITCH0&PERFENH_R99UPA_FAIRNESS_USR_SEL_SWITCH0&PERFENH_HSPDSCH_SF_FORCEALLOC_SWITCH1&PERFENH_OLC_REJ_F2DDCCC_SWITCH0&PERFENH_BGNOISE_QUICK_UPT_SWITCH1&PERFENH_HRNTI_OPT_SWITCH1&PERFENH_FDPCH_FAULTY_RECOVER_SWITCH1&PERFENH_CCH_DLCODE_RESERV_SWITCH1&PERFENH_SMALL_RATE_PS_FORCE_ADM_SWITCH1&PERFENH_HSDPA_DLPWR_ADM_OPT_SWITCH1&PERFENH_TD_ALIGN_RRC_EFFECT0&PERFENH_DEACELL_PFMRSV_SWITCH0&PERFENH_BGNOISE_UPT_OPTIMIZE_SWITCH1&PERFENH_INTERRATHO_CAC_OPT_IN_LDR_SWITCH0&PERFENH_CSFBUSER_CAC_OPT_IN_LDR_SWITCH-0
PerfEnhanceSwitch

BSC6910 SET UNBMPARA

WRFD020101
WRFD020402
WRFD010612
WRFD010401
WRFD150222
WRFD020131

Admission Control
Measurement Based
Direct Retry
HSUPA Introduction
Package
System Information
Broadcasting
HSUPA Time Division
Scheduling
Optimization of R99
and HSUPA Users
Fairness

Meaning:1. PERFENH_R99_BRDCSTHSPA_SWITCH
(R99CellBroadcastHspaCapSwitch): When this switch is turned
on, R99 cells broadcast HSPA capability of neighboring cells in
a system information message. 2.
PERFENH_FACH_USER_NUM_SWITCH(Fach User Select
Switch): This switch is configurable in the current version.The
RNC, however,does not use this switch any longer.Later
versions will not support this switch.Therefore,users are not
advised to use this switch. 3.
PERFENH_MBDR_LOADCOND_OPT_SWITCH(Optimized
MBDR Load Calculation Algorithm Switch): When this switch is
turned on, the DL transmit power in a cell is calculated using the
following formula:Percentage of the DL transmit power in a cell =
Percentage of the non-HSPA transmit power + Percentage of
the HSDPA guaranteed bit power (GBP) + Reserved power
coefficient for DL common channels + Reserved power factor for
DL MBMS services + Reserved power factor for DL HSUPA
users.If UL or DL load in a neighboring cell exceeds the value of
InterFreqUlMbdrTrigThreshold or InterFreqDlMbdrTrigThreshold
(in the ADD UCELLMBDRINTERFREQ command), handover to
this neighboring cell cannot be performed. When this switch is
turned off, the percentage of the HSDPA GBP is not considered
during the calculation of the DL transmit power in a cell, and the
original algorithm is used for selecting a neighboring cell using
MBDR. 4.
PERFENH_CALALGO_FOR_HSUPAENU_OPT_SWITCH:
Whether to optimize the calculation results of equivalent HSUPA
UEs. When this switch is turned on, the optimized calculation
results can accurately reflect the uplink cell load. 5.
PERFENH_HSUPA_CCH_PREEMPT_USER: Whether to allow
resource preemption of common users for HSUPA common
channels to ensure that the code resources are allocated to the
left. 6. PERFENH_CE_RLS_ADM_OPT_SWITCH: Whether to
activate the RLS CE-based admission optimization algorithm.
When this switch is turned on, a local cell group consumes an
RLS CE if multiple RLs occupy more than one local cell group,
no matter whether the UE uses the DCH or EDCH under a
NodeB. When this switch is turned off, all local cell groups
consume an RLS CE if multiple RLs occupy more than one local
cell group, no matter whether the UE uses the DCH or EDCH
under a NodeB. 7.
PERFENH_DTCH_FACH_CONG_D2I_SWITCH: When this
switch is turned on and DTCHs are congested, the RNC transits
UEs that are in the CELL_DCH state and do not process
services to the idle mode. This parameter is an advanced
parameter. To modify this parameter, contact Huawei Customer
Service Center for technical support. 8.
PERFENH_HSPA_CAPABLITY_NOT_BRD_SWITCH: Whether
not to send HSPA capability indication messages in SIB5. 9.
PERFENH_SYSINFO_64FRAME_SWITCH: Whether the RNC
sends system information in a cell at a 64-frame scheduling
period to improve the scheduling efficiency. When this switch is
turned on, the 64-frame-period scheduling is used. When this
switch is turned off, the 64-frame-period scheduling is not used.
10. PERFENH_SIB7MIB_COMBINE_SWITCH: Whether SIB7
and MIB are combined when the RNC sends system information
in a cell. When this switch is turned on, SIB7 and MIB
transmitted from the cell are combined to one system
information to save air interface resources and improve
scheduling efficiency. When this switch is turned off, SIB7 and
MIB transmitted from the cell are two independent messages.
11. PERFENH_HSPA_CODE_ALLOC_OPT_SWITCH: Whether
channel codes for HSPA services are pre-allocated during cell
setup. When this switch is turned on, channel codes are
allocated for the HS-SCCH, E-AGCH, E-RGCH, and E-HICH
immediately after the cell is set up.When this switch is turned off,
channel codes are allocated only when HSPA services are

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established. 12.
PERFENH_R99UPA_FAIRNESS_USR_SEL_SWITCH:
Whether the R99 and HSUPA fairness algorithm reduces the BE
service rate of only the users whose both uplink and downlink
services are carried on R99 channels. When this switch is
turned off, the algorithm reduces the BE service rate of users
whose uplink services are carried on R99 channels and
downlink services are carried on R99 or HSDPA channels.
When this switch is turned on, the algorithm reduces the BE
service rate of only the users whose uplink and downlink
services are carried on R99 channels. 13.
PERFENH_HSPDSCH_SF_FORCEALLOC_SWITCH:
PERFENH_HSPDSCH_SF_FORCEALLOC_SWITCH: Whether
the last vacant SF16 code is used as the HS-PDSCH code when
HSDPA has been activated. When this switch is turned on and
HSDPA has been activated, no matter whether the last SF16
code is vacant, the RNC repeatedly attempts to allocate this
code to the HS-PDSCH This improves the SF spreading code
usage. If the HS-PDSCH setup fails, the RNC allocates the last
vacant SF16 code to the HS-PDSCH. When this switch is turned
off and HSDPA has been activated, the RNC allocates the last
vacant SF16 code first to the HS-PDSCH. This improves the
HSDPA activation efficiency. 14.
PERFENH_OLC_REJ_F2DDCCC_SWITCH: Whether to prohibit
the DCCC-triggered state transition from CELL_FACH to
CELL_DCH (F2D for short) when a cell is in the overload control
(OLC) state. When this switch is turned off, the RNC allows the
DCCC-triggered F2D state transition. When this switch is turned
on, the RNC does not support the DCCC-triggered F2D state
transition. 15. PERFENH_BGNOISE_QUICK_UPT_SWITCH:
Whether the background noise one-time quick update algorithm
is enabled. When this switch is turned on, upon receiving the
RTWP report, the RNC updates the background noise value
based on the common measurement report if no UEs in the
CELL_DCH state are served by the cell. When this switch is
turned off, upon receiving the RTWP report, the RNC does not
update the background noise value based on the command
measurement report that is reported when the Uu interface
carries no load. 16. PERFENH_HRNTI_OPT_SWITCH: Whether
HRNTI adopts an optimized algorithm. When this switch is
turned on, the hamming distance between the HRNTI identifiers
distributed by the RNC is equal to or larger than 4, which
effectively avoids incorrect demodulation. When this switch is
turned off, the hamming distance between the HRNTI identifiers
distributed by the RNC is equal to or larger than 1. 17.
PERFENH_FDPCH_FAULTY_RECOVER_SWITCH: Whether
the fault recovery function is available for F-DPCH codes. When
this switch is turned on, the RNC checks the usage of F-DPCH
codes periodically or when SF code resource allocation fails and
releases the unexpectedly used F-DPCH codes. When this
switch is turned off, the RNC does not check the usage of FDPCH codes and restores the abnormal F-DPCH codes. 18.
PERFENH_CCH_DLCODE_RESERV_SWITCH: Whether the
channel codes released by a common channel are reserved
during reestablishment of the common channel so that the
reestablished common channel can use the same channel
codes after cell setup. When this switch is turned on, the
channel codes released by a common channel are reserved
during reestablishment of the common channel. That is, the
reestablished common channel uses the same channel codes
after cell setup. When this switch is turned off, the channel
codes released by a common channel are not reserved during
reestablishment of the common channel. That is, the
reestablished common channel uses different channel codes
after cell setup. 19.
PERFENH_SMALL_RATE_PS_FORCE_ADM_SWITCH:
Whether the RNC makes an admission decision on RAB setup
when the resources required by RAB setup for a low-rate PS
user do not outnumber the resources used for RRC connection
setup. When this switch is turned on, the RNC makes an
admission decision on RAB setup. See the [CMD]ADD
UCELLCAC[/CMD] command For details about relevant
thresholds. When this switch is turned off, the RNC does not
make an admission decision on RAB setup. That is, the RNC
always accepts the RAB setup requests. A low-rate PS user is a
user whose SF corresponding to RAB setup is equal to or larger
than the SF reserved for a handover. The SF reserved for a
handover can be configured by the UlHoCeResvSf and
DlHoCeCodeResvSf parameters in the [CMD]ADD UCELLACAC
[/CMD] command. 20.
PERFENH_HSDPA_DLPWR_ADM_OPT_SWITCH: Whether
the HSDPA power increment is considered during downlink
power admission for HSDPA users. The HSDPA power
increment is considered during downlink power admission for
HSDPA users only when this switch is turned off and the
HSDPA_GBP_MEAS switch under the "NBMCacAlgoSwitch"
parameter in the "ADD UCELLALGOSWITCH" is turned on.
When this switch is turned on, the HSDPA power increment is
always considered during downlink power admission for HSDPA
users. 21. PERFENH_TD_ALIGN_RRC_EFFECT: Whether
alignment using chip offset configurations for HSUPA time
division scheduling takes effect in the RRC connection setup
phase. OFF: This switch is turned off. Alignment using chip
offset configurations for HSUPA time division scheduling does
not take effect in the RRC connection setup phase. ON: This
switch is turned on. Alignment using chip offset configurations
for HSUPA time division scheduling takes effect in the RRC
connection setup phase. 22.
PERFENH_DEACELL_PFMRSV_SWITCH: Whether to reserve
the cell measurement set after deactivating a cell. 0: This switch
is turned off. The cell measurement set is deleted after cell
deactivation. 1: This switch is turned on. After cell deactivation,
the cell measurement set is reserved and the unavailable
duration for the cell caused by deactivation is measured by the
VS.Cell.UnavailTime counter. 23.

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PERFENH_BGNOISE_UPT_OPTIMIZE_SWITCH: Accuracy at
which the RNC calculates the background noise. 1: This switch
is turned on. The RNC calculates background noise at a high
accuracy. 0: This switch is turned off. The RNC calculates
background noise at a low accuracy. 24.
PERFENH_INTERRATHO_CAC_OPT_IN_LDR_SWITCH:
Whether to admit UEs in LDR status after incoming inter-RAT
handovers. 1: This switch is turned on. The RNC admits UEs in
LDR status after incoming inter-RAT handovers. 2: This switch is
turned off. The RNC does not admit UEs in LDR status after
incoming inter-RAT handovers. 25.
PERFENH_CSFBUSER_CAC_OPT_IN_LDR_SWITCH:
Whether the cell LDR status is considered during a CSFB user
admission. 1: This switch is turned on. The cell LDR status is not
considered during a CSFB user admission. 2: This switch is
turned off. The cell LDR status is considered during a CSFB
user admission.
GUI Value Range:PERFENH_R99_BRDCSTHSPA_SWITCH,
PERFENH_FACH_USER_NUM_SWITCH,
PERFENH_MBDR_LOADCOND_OPT_SWITCH,
PERFENH_CALALGO_FOR_HSUPAENU_OPT_SWITCH,
PERFENH_HSUPA_CCH_PREEMPT_USER,
PERFENH_CE_RLS_ADM_OPT_SWITCH,
PERFENH_DTCH_FACH_CONG_D2I_SWITCH,
PERFENH_HSPA_CAPABLITY_NOT_BRD_SWITCH,
PERFENH_SYSINFO_64FRAME_SWITCH,
PERFENH_SIB7MIB_COMBINE_SWITCH,
PERFENH_HSPA_CODE_ALLOC_OPT_SWITCH,
PERFENH_R99UPA_FAIRNESS_USR_SEL_SWITCH,
PERFENH_HSPDSCH_SF_FORCEALLOC_SWITCH,
PERFENH_OLC_REJ_F2DDCCC_SWITCH,
PERFENH_BGNOISE_QUICK_UPT_SWITCH,
PERFENH_HRNTI_OPT_SWITCH,
PERFENH_FDPCH_FAULTY_RECOVER_SWITCH,
PERFENH_CCH_DLCODE_RESERV_SWITCH,
PERFENH_SMALL_RATE_PS_FORCE_ADM_SWITCH,
PERFENH_HSDPA_DLPWR_ADM_OPT_SWITCH,
PERFENH_TD_ALIGN_RRC_EFFECT,
PERFENH_DEACELL_PFMRSV_SWITCH,
PERFENH_BGNOISE_UPT_OPTIMIZE_SWITCH,
PERFENH_INTERRATHO_CAC_OPT_IN_LDR_SWITCH,
PERFENH_CSFBUSER_CAC_OPT_IN_LDR_SWITCH
Unit:None
Actual Value Range:PERFENH_R99_BRDCSTHSPA_SWITCH,
PERFENH_FACH_USER_NUM_SWITCH,
PERFENH_MBDR_LOADCOND_OPT_SWITCH,
PERFENH_CALALGO_FOR_HSUPAENU_OPT_SWITCH,
PERFENH_HSUPA_CCH_PREEMPT_USER,
PERFENH_CE_RLS_ADM_OPT_SWITCH,
PERFENH_DTCH_FACH_CONG_D2I_SWITCH,
PERFENH_HSPA_CAPABLITY_NOT_BRD_SWITCH,
PERFENH_SYSINFO_64FRAME_SWITCH,
PERFENH_SIB7MIB_COMBINE_SWITCH,
PERFENH_HSPA_CODE_ALLOC_OPT_SWITCH,
PERFENH_R99UPA_FAIRNESS_USR_SEL_SWITCH,
PERFENH_HSPDSCH_SF_FORCEALLOC_SWITCH,
PERFENH_OLC_REJ_F2DDCCC_SWITCH,
PERFENH_BGNOISE_QUICK_UPT_SWITCH,
PERFENH_HRNTI_OPT_SWITCH,
PERFENH_FDPCH_FAULTY_RECOVER_SWITCH,
PERFENH_CCH_DLCODE_RESERV_SWITCH,
PERFENH_SMALL_RATE_PS_FORCE_ADM_SWITCH,
PERFENH_HSDPA_DLPWR_ADM_OPT_SWITCH,
PERFENH_TD_ALIGN_RRC_EFFECT,
PERFENH_DEACELL_PFMRSV_SWITCH,
PERFENH_BGNOISE_UPT_OPTIMIZE_SWITCH,
PERFENH_INTERRATHO_CAC_OPT_IN_LDR_SWITCH,
PERFENH_CSFBUSER_CAC_OPT_IN_LDR_SWITCH
Default Value:PERFENH_R99_BRDCSTHSPA_SWITCH0&PERFENH_FACH_USER_NUM_SWITCH0&PERFENH_MBDR_LOADCOND_OPT_SWITCH0&PERFENH_CALALGO_FOR_HSUPAENU_OPT_SWITCH
0&PERFENH_HSUPA_CCH_PREEMPT_USER1&PERFENH_CE_RLS_ADM_OPT_SWITCH0&PERFENH_DTCH_FACH_CONG_D2I_SWITCH0&PERFENH_HSPA_CAPABLITY_NOT_BRD_SWITCH0&PERFENH_SYSINFO_64FRAME_SWITCH0&PERFENH_SIB7MIB_COMBINE_SWITCH0&PERFENH_HSPA_CODE_ALLOC_OPT_SWITCH0&PERFENH_R99UPA_FAIRNESS_USR_SEL_SWITCH0&PERFENH_HSPDSCH_SF_FORCEALLOC_SWITCH1&PERFENH_OLC_REJ_F2DDCCC_SWITCH0&PERFENH_BGNOISE_QUICK_UPT_SWITCH1&PERFENH_HRNTI_OPT_SWITCH1&PERFENH_FDPCH_FAULTY_RECOVER_SWITCH1&PERFENH_CCH_DLCODE_RESERV_SWITCH1&PERFENH_SMALL_RATE_PS_FORCE_ADM_SWITCH1&PERFENH_HSDPA_DLPWR_ADM_OPT_SWITCH1&PERFENH_TD_ALIGN_RRC_EFFECT0&PERFENH_DEACELL_PFMRSV_SWITCH0&PERFENH_BGNOISE_UPT_OPTIMIZE_SWITCH1&PERFENH_INTERRATHO_CAC_OPT_IN_LDR_SWITCH0&PERFENH_CSFBUSER_CAC_OPT_IN_LDR_SWITCH-0
ZeroRateUpFailToRelTimerLen

BSC6900 SET UCOIFTIMER

WRFD021101

Dynamic Channel
Configuration Control
(DCCC)

Meaning:Release timer for the PS BE service at a rate of 0 kbit/s
after the DCCC rate increase. For the PS BE service at a rate of
0 kbit/s, this parameter is used for the DCCC rate increase
triggered by event 4A. Unsuccessful rate increases indicate that
resources are insufficient in the cell. The service at a rate of 0
kbit/s is unavailable in a short period. If the timer is started, the 0
kbit/s service is released after the timer expires. If the value is
set to 0, the timer is not started.
GUI Value Range:0~65535
Unit:s

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Load Control Feature Parameter Description

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Actual Value Range:0~65535
Default Value:180
ZeroRateUpFailToRelTimerLen

BSC6910 SET UCOIFTIMER

WRFD021101

Dynamic Channel
Configuration Control
(DCCC)

Meaning:Release timer for the PS BE service at a rate of 0 kbit/s
after the DCCC rate increase. For the PS BE service at a rate of
0 kbit/s, this parameter is used for the DCCC rate increase
triggered by event 4A. Unsuccessful rate increases indicate that
resources are insufficient in the cell. The service at a rate of 0
kbit/s is unavailable in a short period. If the timer is started, the 0
kbit/s service is released after the timer expires. If the value is
set to 0, the timer is not started.
GUI Value Range:0~65535
Unit:s
Actual Value Range:0~65535
Default Value:180

EmcPreeRefVulnSwitch

BSC6900 SET UQUEUEPREEMPT

WRFD010505
WRFD021104

Queuing and PreEmption
Emergency Call

Meaning:Whether to allow emergency calls to perform
unconditional preemption. When this switch is turned on, users
initiating emergency calls can preempt the resources occupied
by all the admitted users in non-emergency calls. When this
switch is turned off, users initiating emergency calls can only
preempt resources occupied by the users who initiate nonemergency calls and are configured with the preempted
attributes.
GUI Value Range:OFF, ON
Unit:None
Actual Value Range:OFF, ON
Default Value:ON

EmcPreeRefVulnSwitch

BSC6910 SET UQUEUEPREEMPT

WRFD010505
WRFD021104

Queuing and PreEmption
Emergency Call

Meaning:Whether to allow emergency calls to perform
unconditional preemption. When this switch is turned on, users
initiating emergency calls can preempt the resources occupied
by all the admitted users in non-emergency calls. When this
switch is turned off, users initiating emergency calls can only
preempt resources occupied by the users who initiate nonemergency calls and are configured with the preempted
attributes.
GUI Value Range:OFF, ON
Unit:None
Actual Value Range:OFF, ON
Default Value:ON

NBMCacAlgoSwitch

BSC6900 ADD UCELLALGOSWITCH
MOD UCELLALGOSWITCH

WRFD020101
WRFD020102
WRFD010202
WRFD021102
WRFD020117
WRFD020136
WRFD010653
WRFD010654
WRFD140223
WRFD020122
WRFD021104

Admission Control
Load Measurement
UE State in
Connected Mode
(CELL-DCH
CELL-PCH
URA-PCH
CELL-FACH)
Cell Barring
Multi-Carrier Switch
off Based on Traffic
Load
Anti-Interference
Scheduling for
HSUPA
96 HSDPA Users per
Cell
128 HSDPA Users
per Cell
MOCN Cell Resource
Demarcation
Multi-Carrier Switch
off Based on QoS
Emergency Call

Meaning:Whether to enable the algorithms related to cell service
admission. Selecting a switch enables the corresponding
algorithm and clearing a switch disables the corresponding
algorithm. 1. CRD_ADCTRL: Whether to enable the credit
admission control algorithm. The credit admission control
algorithm is valid only when this switch is turned on and the
NODEB_CREDIT_CAC_SWITCH check box under the "CAC
algorithm switch" parameter in the "SET UCACALGOSWITCH"
command is selected. 2. HSDPA_UU_ADCTRL: Whether to
enable air-interface load admission control algorithm for HSDPA
UEs who process uplink services over the DCHs and downlink
services over the HSDPA channels. This switch does not take
effect for UEs who process uplink services over the HSUPA
channels and downlink services over the HSDPA channels. 3.
HSUPA_UU_ADCTRL: Whether to enable air-interface load
admission control algorithm for HSUPA UEs who process uplink
services over the HSUPA channels and downlink services over
the DCHs. This switch does not take effect for UEs who process
uplink services over the HSUPA channels and downlink services
over the HSDPA channels. 4. MBMS_UU_ADCTRL: Whether to
enable air-interface load admission control algorithm for
Multimedia Broadcast Multicast Service (MBMS) UEs. 5.
HSDPA_GBP_MEAS: Whether to enable GBP measurement for
HSDPA UEs. The NodeB reports the GBP of HSDPA UEs to the
RNC only after the measurement is enabled. 6.
HSDPA_PBR_MEAS: Whether to enable provided bit rate (PBR)
measurement for HSDPA UEs. The NodeB reports the PBR of
HSDPA UEs to the RNC only after the measurement is enabled.
7. SYS_INFO_UPDATE_FOR_IU_RST: Whether to update
system information after the Iub interface resets. The cell barring
function in the event of Iu interface faults can be enabled only
when this switch is turned on and the
SYS_INFO_UPDATE_FOR_IU_RST (RNC-level switch) check
box under the "Process switch" parameter in the "SET
URRCTRLSWITCH" command is selected. 8.
HSUPA_PBR_MEAS: Whether to enable PBR measurement for
HSUPA UEs. The NodeB reports the PBR of HSUPA UEs to the
RNC only after the measurement is enabled. 9.
HSUPA_EDCH_RSEPS_MEAS: Whether to enable the periodic
measurement of total receive power generated by scheduling
services on E-DCHs. 10. EMC_UU_ADCTRL: Whether to
enable power admission control for UEs initiating emergency
calls. 11. Received total wideband power_RESIST_DISTURB:
Whether to enable anti-inference processing when Received
Total Wideband Power (RTWP) is abnormal. 12.
SIGNALING_SHO_UL_AC_SWITCH: Whether to enable uplink
power-based soft handover control for UEs who have
established RRC connections but process no services. If this
switch is turned on, such UEs cannot access target cells by
using soft handovers if the target cells are in the OLC state in
the uplink. 13. FACH_UU_ADCTRL: Whether to enable
admission control for UEs that establish services on FACHs. If
this switch is turned on and a UE initiates an RAB or RRC
connection setup request (with a cause value other than Detach,
Registration, or Emergency Call) in an overloaded cell, the setup
request is rejected. If the cell is not overloaded, the FACH user
admission procedure is initiated and the UE can access the cell
after the procedure succeeds. If this switch is turned off, the
FACH user admission procedure is initiated regardless of
whether the cell is overloaded and the UE can access the cell
after the procedure succeeds. 14.

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Load Control Feature Parameter Description

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MIMOCELL_LEGACYHSDPA_ADCTRL: Whether to enable
admission control for common HSDPA UEs in MIMO cells. 15.
FAST_DORMANCY_ADCTRL: Whether to enable admission
control for fast dormancy-capable UEs. This switch is used to
alleviate FACH congestion by disabling state migration for fast
dormancy-capable UEs in the CELL-DCH state. If this switch is
turned off for many cells under the RNC, signaling storms occur
and CPU usage on the RNC, NodeB, and SGSN increases
significantly, affecting service access. The function
corresponding to this switch has been deleted in R13, and this
switch is invalid. 16. FACH_USER_NUM_NOT_CTRL: Whether
to restrict the number of admitted FACH UEs.
GUI Value Range:CRD_ADCTRL(Credit Admission Control
Algorithm), HSDPA_UU_ADCTRL(HSDPA UU Load Admission
Control Algorithm), HSUPA_UU_ADCTRL(HSUPA UU Load
Admission Control Algorithm), MBMS_UU_ADCTRL(MBMS UU
Load Admission Control Algorithm), HSDPA_GBP_MEAS
(HSDPA GBP Meas Algorithm), HSDPA_PBR_MEAS(HSDPA
PBR Meas Algorithm), SYS_INFO_UPDATE_FOR_IU_RST
(System Info Update Switch for Iu Reset), HSUPA_PBR_MEAS
(HSUPA PBR Meas Algorithm), HSUPA_EDCH_RSEPS_MEAS
(HSUPA EDCH RSEPS Meas Algorithm), EMC_UU_ADCTRL
(emergency call power admission), RTWP_RESIST_DISTURB
(RTWP Resist Disturb Switch),
SIGNALING_SHO_UL_AC_SWITCH(Signaling Sho Ul power
cac switch), FACH_UU_ADCTRL(FACH power cac switch),
MIMOCELL_LEGACYHSDPA_ADCTRL(Legacy HSDPA
Admission Control Algorithm in MIMO Cell ),
FAST_DORMANCY_ADCTRL(Fast Dormancy User Admission
Control Algorithm), FACH_USER_NUM_NOT_CTRL(FACH
USER UNLIMITED)
Unit:None
Actual Value Range:CRD_ADCTRL, HSDPA_UU_ADCTRL,
HSUPA_UU_ADCTRL, MBMS_UU_ADCTRL,
HSDPA_GBP_MEAS, HSDPA_PBR_MEAS,
SYS_INFO_UPDATE_FOR_IU_RST, HSUPA_PBR_MEAS,
HSUPA_EDCH_RSEPS_MEAS, EMC_UU_ADCTRL,
RTWP_RESIST_DISTURB,
SIGNALING_SHO_UL_AC_SWITCH, FACH_UU_ADCTRL,
MIMOCELL_LEGACYHSDPA_ADCTRL,
FAST_DORMANCY_ADCTRL,
FACH_USER_NUM_NOT_CTRL
Default Value:CRD_ADCTRL-1&HSDPA_UU_ADCTRL0&HSUPA_UU_ADCTRL-0&MBMS_UU_ADCTRL0&HSDPA_GBP_MEAS-0&HSDPA_PBR_MEAS0&SYS_INFO_UPDATE_FOR_IU_RST0&HSUPA_PBR_MEAS-0&HSUPA_EDCH_RSEPS_MEAS0&EMC_UU_ADCTRL-1&RTWP_RESIST_DISTURB0&SIGNALING_SHO_UL_AC_SWITCH0&FACH_UU_ADCTRL0&MIMOCELL_LEGACYHSDPA_ADCTRL0&FAST_DORMANCY_ADCTRL1&FACH_USER_NUM_NOT_CTRL-0
NBMCacAlgoSwitch

BSC6910 ADD UCELLALGOSWITCH
MOD UCELLALGOSWITCH

WRFD020101
WRFD020102
WRFD010202
WRFD021102
WRFD020117
WRFD020136
WRFD010653
WRFD010654
WRFD140223
WRFD020122
WRFD021104

Admission Control
Load Measurement
UE State in
Connected Mode
(CELL-DCH
CELL-PCH
URA-PCH
CELL-FACH)
Cell Barring
Multi-Carrier Switch
off Based on Traffic
Load
Anti-Interference
Scheduling for
HSUPA
96 HSDPA Users per
Cell
128 HSDPA Users
per Cell
MOCN Cell Resource
Demarcation
Multi-Carrier Switch
off Based on QoS
Emergency Call

Meaning:Whether to enable the algorithms related to cell service
admission. Selecting a switch enables the corresponding
algorithm and clearing a switch disables the corresponding
algorithm. 1. CRD_ADCTRL: Whether to enable the credit
admission control algorithm. The credit admission control
algorithm is valid only when this switch is turned on and the
NODEB_CREDIT_CAC_SWITCH check box under the "CAC
algorithm switch" parameter in the "SET UCACALGOSWITCH"
command is selected. 2. HSDPA_UU_ADCTRL: Whether to
enable air-interface load admission control algorithm for HSDPA
UEs who process uplink services over the DCHs and downlink
services over the HSDPA channels. This switch does not take
effect for UEs who process uplink services over the HSUPA
channels and downlink services over the HSDPA channels. 3.
HSUPA_UU_ADCTRL: Whether to enable air-interface load
admission control algorithm for HSUPA UEs who process uplink
services over the HSUPA channels and downlink services over
the DCHs. This switch does not take effect for UEs who process
uplink services over the HSUPA channels and downlink services
over the HSDPA channels. 4. MBMS_UU_ADCTRL: Whether to
enable air-interface load admission control algorithm for
Multimedia Broadcast Multicast Service (MBMS) UEs. 5.
HSDPA_GBP_MEAS: Whether to enable GBP measurement for
HSDPA UEs. The NodeB reports the GBP of HSDPA UEs to the
RNC only after the measurement is enabled. 6.
HSDPA_PBR_MEAS: Whether to enable provided bit rate (PBR)
measurement for HSDPA UEs. The NodeB reports the PBR of
HSDPA UEs to the RNC only after the measurement is enabled.
7. SYS_INFO_UPDATE_FOR_IU_RST: Whether to update
system information after the Iub interface resets. The cell barring
function in the event of Iu interface faults can be enabled only
when this switch is turned on and the
SYS_INFO_UPDATE_FOR_IU_RST (RNC-level switch) check
box under the "Process switch" parameter in the "SET
URRCTRLSWITCH" command is selected. 8.
HSUPA_PBR_MEAS: Whether to enable PBR measurement for
HSUPA UEs. The NodeB reports the PBR of HSUPA UEs to the
RNC only after the measurement is enabled. 9.
HSUPA_EDCH_RSEPS_MEAS: Whether to enable the periodic
measurement of total receive power generated by scheduling
services on E-DCHs. 10. EMC_UU_ADCTRL: Whether to
enable power admission control for UEs initiating emergency
calls. 11. Received total wideband power_RESIST_DISTURB:
Whether to enable anti-inference processing when Received
Total Wideband Power (RTWP) is abnormal. 12.
SIGNALING_SHO_UL_AC_SWITCH: Whether to enable uplink
power-based soft handover control for UEs who have
established RRC connections but process no services. If this
switch is turned on, such UEs cannot access target cells by
using soft handovers if the target cells are in the OLC state in

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Load Control Feature Parameter Description

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the uplink. 13. FACH_UU_ADCTRL: Whether to enable
admission control for UEs that establish services on FACHs. If
this switch is turned on and a UE initiates an RAB or RRC
connection setup request (with a cause value other than Detach,
Registration, or Emergency Call) in an overloaded cell, the setup
request is rejected. If the cell is not overloaded, the FACH user
admission procedure is initiated and the UE can access the cell
after the procedure succeeds. If this switch is turned off, the
FACH user admission procedure is initiated regardless of
whether the cell is overloaded and the UE can access the cell
after the procedure succeeds. 14.
MIMOCELL_LEGACYHSDPA_ADCTRL: Whether to enable
admission control for common HSDPA UEs in MIMO cells. 15.
FAST_DORMANCY_ADCTRL: Whether to enable admission
control for fast dormancy-capable UEs. This switch is used to
alleviate FACH congestion by disabling state migration for fast
dormancy-capable UEs in the CELL-DCH state. If this switch is
turned off for many cells under the RNC, signaling storms occur
and CPU usage on the RNC, NodeB, and SGSN increases
significantly, affecting service access. The function
corresponding to this switch has been deleted in R13, and this
switch is invalid. 16. FACH_USER_NUM_NOT_CTRL: Whether
to restrict the number of admitted FACH UEs.
GUI Value Range:CRD_ADCTRL(Credit Admission Control
Algorithm), HSDPA_UU_ADCTRL(HSDPA UU Load Admission
Control Algorithm), HSUPA_UU_ADCTRL(HSUPA UU Load
Admission Control Algorithm), MBMS_UU_ADCTRL(MBMS UU
Load Admission Control Algorithm), HSDPA_GBP_MEAS
(HSDPA GBP Meas Algorithm), HSDPA_PBR_MEAS(HSDPA
PBR Meas Algorithm), SYS_INFO_UPDATE_FOR_IU_RST
(System Info Update Switch for Iu Reset), HSUPA_PBR_MEAS
(HSUPA PBR Meas Algorithm), HSUPA_EDCH_RSEPS_MEAS
(HSUPA EDCH RSEPS Meas Algorithm), EMC_UU_ADCTRL
(emergency call power admission), RTWP_RESIST_DISTURB
(RTWP Resist Disturb Switch),
SIGNALING_SHO_UL_AC_SWITCH(Signaling Sho Ul power
cac switch), FACH_UU_ADCTRL(FACH power cac switch),
MIMOCELL_LEGACYHSDPA_ADCTRL(Legacy HSDPA
Admission Control Algorithm in MIMO Cell ),
FAST_DORMANCY_ADCTRL(Fast Dormancy User Admission
Control Algorithm), FACH_USER_NUM_NOT_CTRL(FACH
USER UNLIMITED)
Unit:None
Actual Value Range:CRD_ADCTRL, HSDPA_UU_ADCTRL,
HSUPA_UU_ADCTRL, MBMS_UU_ADCTRL,
HSDPA_GBP_MEAS, HSDPA_PBR_MEAS,
SYS_INFO_UPDATE_FOR_IU_RST, HSUPA_PBR_MEAS,
HSUPA_EDCH_RSEPS_MEAS, EMC_UU_ADCTRL,
RTWP_RESIST_DISTURB,
SIGNALING_SHO_UL_AC_SWITCH, FACH_UU_ADCTRL,
MIMOCELL_LEGACYHSDPA_ADCTRL,
FAST_DORMANCY_ADCTRL,
FACH_USER_NUM_NOT_CTRL
Default Value:CRD_ADCTRL-1&HSDPA_UU_ADCTRL0&HSUPA_UU_ADCTRL-0&MBMS_UU_ADCTRL0&HSDPA_GBP_MEAS-0&HSDPA_PBR_MEAS0&SYS_INFO_UPDATE_FOR_IU_RST0&HSUPA_PBR_MEAS-0&HSUPA_EDCH_RSEPS_MEAS0&EMC_UU_ADCTRL-1&RTWP_RESIST_DISTURB0&SIGNALING_SHO_UL_AC_SWITCH0&FACH_UU_ADCTRL0&MIMOCELL_LEGACYHSDPA_ADCTRL0&FAST_DORMANCY_ADCTRL1&FACH_USER_NUM_NOT_CTRL-0
NBMLdcAlgoSwitch

BSC6900 ADD UCELLALGOSWITCH
MOD UCELLALGOSWITCH

WRFD020106
WRFD020102
WRFD020104
WRFD020105
WRFD020107
WRFD140217
WRFD150236
WRFD140223

Load Reshuffling
Load Measurement
Intra Frequency Load
Balance
Potential User Control
Overload Control
Inter-Frequency Load
Balancing Based on
Configurable Load
Threshold
Load Based Dynamic
Adjustment of
PCPICH
MOCN Cell Resource
Demarcation

Meaning:Whether to enable the algorithms related to cell load
control. Selecting a switch enables the corresponding algorithm
and clearing a switch disables the corresponding algorithm. 1.
INTRA_FREQUENCY_LDB: Whether to enable the cell
breathing algorithm. This algorithm adjusts P-CPICH transmit
power of a cell based on the downlink TCP load to achieve load
balancing between intra-frequency cells. This algorithm
automatically becomes invalid when the load-based dynamic P
CPICH transmit power adjustment algorithm (controlled by the
DLLOAD_BASED_PCPICH_PWR_ADJ_SWITCH switch) takes
effect. 2. PUC: Whether to enable the Potential User Control
(PUC) algorithm. This algorithm adjusts cell selection and
reselection parameters based on the cell load to enable UEs to
reselect lightly loaded cells. 3. UL_UU_OLC: Whether to enable
the uplink overload control (OLC) algorithm. When the uplink
power is overloaded in a cell, this algorithm alleviates the uplink
load by using quick transport format (TF) restriction, distributing
best effort (BE) service to common channels, or releasing UEs.
4. DL_UU_OLC: Whether to enable the downlink OLC algorithm.
When the downlink power is overloaded in a cell, this algorithm
alleviates the downlink load by using quick TF restriction,
distributing BE services to common channels, releasing UEs, or
reconfiguring the maximum transmit power of FACHs. 5.
UL_UU_LDR: Whether to enable the uplink load reshuffling
(LDR) algorithm. When the uplink load is heavy in a cell, this
algorithm alleviates the uplink load by using load-based interfrequency handovers, BE service rate reduction, uncontrollable
real-time service QoS renegotiation, load-based CS/PS interRAT handovers, and AMR service rate reduction. 6.
DL_UU_LDR: Whether to enable the downlink LDR algorithm.
When the downlink load is heavy in a cell, this algorithm
alleviates the downlink load by using load-based inter-frequency
handovers, BE service rate reduction, uncontrollable real-time
service QoS renegotiation, load-based CS/PS inter-RAT
handovers, AMR service rate reduction, and MBMS power
restriction. 7. OLC_EVENTMEAS: Whether to enable OLC event
measurement. 8. CELL_CODE_LDR: Whether to enable cell
code reshuffling algorithm. In the event of code resource
overuse, this algorithm alleviates the code resource overuse by

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Load Control Feature Parameter Description

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using BE service rate reduction, code tree reshuffling, and load
based inter-frequency handovers. 9. CELL_CREDIT_LDR:
Whether to enable the cell credit reshuffling algorithm. In the
event of cell credit overuse, this algorithm alleviates the credit
overuse by using load-based inter-frequency handovers, BE
service rate reduction, uncontrollable real-time service QoS
renegotiation, and load-based CS/PS inter-RAT handovers. 10.
UL_INTRA_FREQUENCY_ULB: Whether to enable RTWPbased intra-frequency load balancing algorithm. This algorithm
adjusts P-CPICH transmit power of a cell based on the RTWP
load to achieve load balancing between intra-frequency cells.
This algorithm automatically becomes invalid when the loadbased dynamic P-CPICH transmit power adjustment algorithm
(controlled by the
DLLOAD_BASED_PCPICH_PWR_ADJ_SWITCH switch) takes
effect. 11. UL_UU_CLB: Whether to enable the uplink loadbased CLB algorithm. This algorithm determines whether a cell
enters the CLB state by the uplink load on the air interface. If a
cell is in the CLB state, measurement-based inter-frequency
handovers are triggered periodically to achieve load balancing
between inter-frequency cells. 12. DL_UU_CLB: Whether to
enable the downlink load-based CLB algorithm. This algorithm
determines whether a cell enters the CLB state by the downlink
load on the air interface. If a cell is in the CLB state,
measurement-based inter-frequency handovers are triggered
periodically to achieve load balancing between inter-frequency
cells. 13. CELL_CODE_CLB: Whether to enable code resource
based CLB algorithm. This algorithm determines whether a cell
enters the CLB state by the code resource usage. If a cell is in
the CLB state, measurement-based inter-frequency handovers
are triggered periodically to achieve load balancing between
inter-frequency cells. 14. CELL_CREDIT_CLB: Whether to
enable credit-based CLB algorithm. This algorithm determines
whether a cell enters the CLB state by the credit resource
usage. If a cell is in the CLB state, measurement-based interfrequency handovers are triggered periodically to achieve load
balancing between inter-frequency cells. 15.
DLLOAD_BASED_PCPICH_PWR_ADJ_SWITCH: Whether to
enable downlink load-based dynamic primary common pilot
channel (P-CPICH) power adjustment algorithm. This algorithm
adjusts the P-CPICH transmit power by the downlink non-HSPA
power load to reduce the downlink non-HSPA power load. If this
algorithm takes effect, other enabled algorithms for intrafrequency load balancing (based on TCP or RTWP)
automatically become invalid.
GUI Value Range:INTRA_FREQUENCY_LDB, PUC,
UL_UU_LDR, DL_UU_LDR, UL_UU_OLC, DL_UU_OLC,
OLC_EVENTMEAS, CELL_CODE_LDR, CELL_CREDIT_LDR,
UL_INTRA_FREQUENCY_ULB, UL_UU_CLB, DL_UU_CLB,
CELL_CODE_CLB, CELL_CREDIT_CLB,
DLLOAD_BASED_PCPICH_PWR_ADJ_SWITCH
Unit:None
Actual Value Range:INTRA_FREQUENCY_LDB, PUC,
UL_UU_LDR, DL_UU_LDR, UL_UU_OLC, DL_UU_OLC,
OLC_EVENTMEAS, CELL_CODE_LDR, CELL_CREDIT_LDR,
UL_INTRA_FREQUENCY_ULB, UL_UU_CLB, DL_UU_CLB,
CELL_CODE_CLB, CELL_CREDIT_CLB,
DLLOAD_BASED_PCPICH_PWR_ADJ_SWITCH
Default Value:INTRA_FREQUENCY_LDB-0&PUC0&UL_UU_LDR-0&DL_UU_LDR-0&UL_UU_OLC0&DL_UU_OLC-0&OLC_EVENTMEAS-0&CELL_CODE_LDR
0&CELL_CREDIT_LDR-0&UL_INTRA_FREQUENCY_ULB0&UL_UU_CLB-0&DL_UU_CLB-0&CELL_CODE_CLB0&CELL_CREDIT_CLB0&DLLOAD_BASED_PCPICH_PWR_ADJ_SWITCH-0
NBMLdcAlgoSwitch

BSC6910 ADD UCELLALGOSWITCH
MOD UCELLALGOSWITCH

WRFD020106
WRFD020102
WRFD020104
WRFD020105
WRFD020107
WRFD140217
WRFD150236
WRFD140223

Load Reshuffling
Load Measurement
Intra Frequency Load
Balance
Potential User Control
Overload Control
Inter-Frequency Load
Balancing Based on
Configurable Load
Threshold
Load Based Dynamic
Adjustment of
PCPICH
MOCN Cell Resource
Demarcation

Meaning:Whether to enable the algorithms related to cell load
control. Selecting a switch enables the corresponding algorithm
and clearing a switch disables the corresponding algorithm. 1.
INTRA_FREQUENCY_LDB: Whether to enable the cell
breathing algorithm. This algorithm adjusts P-CPICH transmit
power of a cell based on the downlink TCP load to achieve load
balancing between intra-frequency cells. This algorithm
automatically becomes invalid when the load-based dynamic P
CPICH transmit power adjustment algorithm (controlled by the
DLLOAD_BASED_PCPICH_PWR_ADJ_SWITCH switch) takes
effect. 2. PUC: Whether to enable the Potential User Control
(PUC) algorithm. This algorithm adjusts cell selection and
reselection parameters based on the cell load to enable UEs to
reselect lightly loaded cells. 3. UL_UU_OLC: Whether to enable
the uplink overload control (OLC) algorithm. When the uplink
power is overloaded in a cell, this algorithm alleviates the uplink
load by using quick transport format (TF) restriction, distributing
best effort (BE) service to common channels, or releasing UEs.
4. DL_UU_OLC: Whether to enable the downlink OLC algorithm.
When the downlink power is overloaded in a cell, this algorithm
alleviates the downlink load by using quick TF restriction,
distributing BE services to common channels, releasing UEs, or
reconfiguring the maximum transmit power of FACHs. 5.
UL_UU_LDR: Whether to enable the uplink load reshuffling
(LDR) algorithm. When the uplink load is heavy in a cell, this
algorithm alleviates the uplink load by using load-based interfrequency handovers, BE service rate reduction, uncontrollable
real-time service QoS renegotiation, load-based CS/PS interRAT handovers, and AMR service rate reduction. 6.
DL_UU_LDR: Whether to enable the downlink LDR algorithm.
When the downlink load is heavy in a cell, this algorithm
alleviates the downlink load by using load-based inter-frequency
handovers, BE service rate reduction, uncontrollable real-time
service QoS renegotiation, load-based CS/PS inter-RAT
handovers, AMR service rate reduction, and MBMS power
restriction. 7. OLC_EVENTMEAS: Whether to enable OLC event
measurement. 8. CELL_CODE_LDR: Whether to enable cell
code reshuffling algorithm. In the event of code resource

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Load Control Feature Parameter Description

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overuse, this algorithm alleviates the code resource overuse by
using BE service rate reduction, code tree reshuffling, and load
based inter-frequency handovers. 9. CELL_CREDIT_LDR:
Whether to enable the cell credit reshuffling algorithm. In the
event of cell credit overuse, this algorithm alleviates the credit
overuse by using load-based inter-frequency handovers, BE
service rate reduction, uncontrollable real-time service QoS
renegotiation, and load-based CS/PS inter-RAT handovers. 10.
UL_INTRA_FREQUENCY_ULB: Whether to enable RTWPbased intra-frequency load balancing algorithm. This algorithm
adjusts P-CPICH transmit power of a cell based on the RTWP
load to achieve load balancing between intra-frequency cells.
This algorithm automatically becomes invalid when the loadbased dynamic P-CPICH transmit power adjustment algorithm
(controlled by the
DLLOAD_BASED_PCPICH_PWR_ADJ_SWITCH switch) takes
effect. 11. UL_UU_CLB: Whether to enable the uplink loadbased CLB algorithm. This algorithm determines whether a cell
enters the CLB state by the uplink load on the air interface. If a
cell is in the CLB state, measurement-based inter-frequency
handovers are triggered periodically to achieve load balancing
between inter-frequency cells. 12. DL_UU_CLB: Whether to
enable the downlink load-based CLB algorithm. This algorithm
determines whether a cell enters the CLB state by the downlink
load on the air interface. If a cell is in the CLB state,
measurement-based inter-frequency handovers are triggered
periodically to achieve load balancing between inter-frequency
cells. 13. CELL_CODE_CLB: Whether to enable code resource
based CLB algorithm. This algorithm determines whether a cell
enters the CLB state by the code resource usage. If a cell is in
the CLB state, measurement-based inter-frequency handovers
are triggered periodically to achieve load balancing between
inter-frequency cells. 14. CELL_CREDIT_CLB: Whether to
enable credit-based CLB algorithm. This algorithm determines
whether a cell enters the CLB state by the credit resource
usage. If a cell is in the CLB state, measurement-based interfrequency handovers are triggered periodically to achieve load
balancing between inter-frequency cells. 15.
DLLOAD_BASED_PCPICH_PWR_ADJ_SWITCH: Whether to
enable downlink load-based dynamic primary common pilot
channel (P-CPICH) power adjustment algorithm. This algorithm
adjusts the P-CPICH transmit power by the downlink non-HSPA
power load to reduce the downlink non-HSPA power load. If this
algorithm takes effect, other enabled algorithms for intrafrequency load balancing (based on TCP or RTWP)
automatically become invalid.
GUI Value Range:INTRA_FREQUENCY_LDB, PUC,
UL_UU_LDR, DL_UU_LDR, UL_UU_OLC, DL_UU_OLC,
OLC_EVENTMEAS, CELL_CODE_LDR, CELL_CREDIT_LDR,
UL_INTRA_FREQUENCY_ULB, UL_UU_CLB, DL_UU_CLB,
CELL_CODE_CLB, CELL_CREDIT_CLB,
DLLOAD_BASED_PCPICH_PWR_ADJ_SWITCH
Unit:None
Actual Value Range:INTRA_FREQUENCY_LDB, PUC,
UL_UU_LDR, DL_UU_LDR, UL_UU_OLC, DL_UU_OLC,
OLC_EVENTMEAS, CELL_CODE_LDR, CELL_CREDIT_LDR,
UL_INTRA_FREQUENCY_ULB, UL_UU_CLB, DL_UU_CLB,
CELL_CODE_CLB, CELL_CREDIT_CLB,
DLLOAD_BASED_PCPICH_PWR_ADJ_SWITCH
Default Value:INTRA_FREQUENCY_LDB-0&PUC0&UL_UU_LDR-0&DL_UU_LDR-0&UL_UU_OLC0&DL_UU_OLC-0&OLC_EVENTMEAS-0&CELL_CODE_LDR
0&CELL_CREDIT_LDR-0&UL_INTRA_FREQUENCY_ULB0&UL_UU_CLB-0&DL_UU_CLB-0&CELL_CODE_CLB0&CELL_CREDIT_CLB0&DLLOAD_BASED_PCPICH_PWR_ADJ_SWITCH-0
CellOverrunThd

BSC6900 ADD UCELLLDB
MOD UCELLLDB

WRFD020104

Intra Frequency Load
Balance

Meaning:If the cell downlink load exceeds this threshold, the
algorithm will decrease the pilot transmit power of the cell so as
to increase the whole system's capacity. This parameter is
based on network planning.
GUI Value Range:0~100
Unit:%
Actual Value Range:0~100
Default Value:90

CellOverrunThd

BSC6910 ADD UCELLLDB
MOD UCELLLDB

WRFD020104

Intra Frequency Load
Balance

Meaning:If the cell downlink load exceeds this threshold, the
algorithm will decrease the pilot transmit power of the cell so as
to increase the whole system's capacity. This parameter is
based on network planning.
GUI Value Range:0~100
Unit:%
Actual Value Range:0~100
Default Value:90

PCPICHPowerPace

BSC6900 ADD UCELLLDB
MOD UCELLLDB

WRFD020104
WRFD150236

Intra Frequency Load
Balance
Load Based Dynamic
Adjustment of
PCPICH

Meaning:Step at which the CPICH power is adjusted each time.
This parameter is used for load-based dynamic pilot power
adjustment and TCP-based intra-frequency load balancing. For
detailed information about this parameter, see 3GPP TS 25.433.
GUI Value Range:0~100
Unit:0.1dB
Actual Value Range:0~10
Default Value:2

PCPICHPowerPace

BSC6910 ADD UCELLLDB
MOD UCELLLDB

WRFD020104
WRFD150236

Intra Frequency Load
Balance
Load Based Dynamic
Adjustment of
PCPICH

Meaning:Step at which the CPICH power is adjusted each time.
This parameter is used for load-based dynamic pilot power
adjustment and TCP-based intra-frequency load balancing. For
detailed information about this parameter, see 3GPP TS 25.433.
GUI Value Range:0~100
Unit:0.1dB
Actual Value Range:0~10
Default Value:2

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Load Control Feature Parameter Description

Page 112 of 143

MinPCPICHPower

BSC6900 ADD UPCPICH
MOD UPCPICHPWR

WRFD020501
WRFD020104
WRFD150236

Open Loop Power
Control
Intra Frequency Load
Balance
Load Based Dynamic
Adjustment of
PCPICH

Meaning:Minimum TX power of the PCPICH in a cell. This
parameter defines the minimum coverage area of a cell.
GUI Value Range:-100~500
Unit:0.1dBm
Actual Value Range:-10~50
Default Value:313

MinPCPICHPower

BSC6910 ADD UPCPICH
MOD UPCPICHPWR

WRFD020501
WRFD020104
WRFD150236

Open Loop Power
Control
Intra Frequency Load
Balance
Load Based Dynamic
Adjustment of
PCPICH

Meaning:Minimum TX power of the PCPICH in a cell. This
parameter defines the minimum coverage area of a cell.
GUI Value Range:-100~500
Unit:0.1dBm
Actual Value Range:-10~50
Default Value:313

CellUnderrunThd

BSC6900 ADD UCELLLDB
MOD UCELLLDB

WRFD020104

Intra Frequency Load
Balance

Meaning:If the cell downlink load is lower than this threshold, the
algorithm will increase the pilot transmit power of the cell so as
to share load of other cells. This parameter is based on network
planning.
GUI Value Range:0~100
Unit:%
Actual Value Range:0~100
Default Value:30

CellUnderrunThd

BSC6910 ADD UCELLLDB
MOD UCELLLDB

WRFD020104

Intra Frequency Load
Balance

Meaning:If the cell downlink load is lower than this threshold, the
algorithm will increase the pilot transmit power of the cell so as
to share load of other cells. This parameter is based on network
planning.
GUI Value Range:0~100
Unit:%
Actual Value Range:0~100
Default Value:30

MaxPCPICHPower

BSC6900 ADD UPCPICH
MOD UPCPICHPWR

WRFD020501
WRFD020104
WRFD150236

Open Loop Power
Control
Intra Frequency Load
Balance
Load Based Dynamic
Adjustment of
PCPICH

Meaning:Maximum TX power of the PCPICH in a cell. This
parameter defines the maximum coverage area of a cell.
GUI Value Range:-100~500
Unit:0.1dBm
Actual Value Range:-10~50
Default Value:346

MaxPCPICHPower

BSC6910 ADD UPCPICH
MOD UPCPICHPWR

WRFD020501
WRFD020104
WRFD150236

Open Loop Power
Control
Intra Frequency Load
Balance
Load Based Dynamic
Adjustment of
PCPICH

Meaning:Maximum TX power of the PCPICH in a cell. This
parameter defines the maximum coverage area of a cell.
GUI Value Range:-100~500
Unit:0.1dBm
Actual Value Range:-10~50
Default Value:346

IntraFreqUlbPeriodTimerLen

BSC6900 SET ULDCPERIOD

WRFD020104

Intra Frequency Load
Balance

Meaning:Period of RTWP-based intra-frequency load balancing
adjustment. If the RTWP is relatively high, the P-CPICH transmit
power is periodically reduced to reduce the RTWP.
GUI Value Range:1~115300
Unit:s
Actual Value Range:1~115300
Default Value:1800

IntraFreqUlbPeriodTimerLen

BSC6910 SET ULDCPERIOD

WRFD020104

Intra Frequency Load
Balance

Meaning:Period of RTWP-based intra-frequency load balancing
adjustment. If the RTWP is relatively high, the P-CPICH transmit
power is periodically reduced to reduce the RTWP.
GUI Value Range:1~115300
Unit:s
Actual Value Range:1~115300
Default Value:1800

UlbAvgFilterLen

BSC6900 SET ULDM

WRFD020104

Intra Frequency Load
Balance

Meaning:Length of the filtering window when the RNC filters the
measurement results reported by the NodeB and the filtered
measurement results will be used in the uplink intra-frequency
load balancing algorithm. This parameter applies to filtering the
common measurement results of the RTWP.
GUI Value Range:1~32
Unit:None
Actual Value Range:1~32
Default Value:32

UlbAvgFilterLen

BSC6910 SET ULDM

WRFD020104

Intra Frequency Load
Balance

Meaning:Length of the filtering window when the RNC filters the
measurement results reported by the NodeB and the filtered
measurement results will be used in the uplink intra-frequency
load balancing algorithm. This parameter applies to filtering the
common measurement results of the RTWP.
GUI Value Range:1~32
Unit:None
Actual Value Range:1~32
Default Value:32

RTWPHeavyThd

BSC6900 ADD UCELLULB
MOD UCELLULB

WRFD020104

Intra Frequency Load
Balance

Meaning:RTWP heavy threshold for the load balancing algorithm
based on Received Total Wideband Power (RTWP). If power in
a cell exceeds the threshold, CPICH power in the cell will be
decreased.
GUI Value Range:0~100
Unit:%
Actual Value Range:0~100
Default Value:95

RTWPHeavyThd

BSC6910 ADD UCELLULB
MOD UCELLULB

WRFD020104

Intra Frequency Load
Balance

Meaning:RTWP heavy threshold for the load balancing algorithm
based on Received Total Wideband Power (RTWP). If power in
a cell exceeds the threshold, CPICH power in the cell will be
decreased.
GUI Value Range:0~100

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Load Control Feature Parameter Description

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Unit:%
Actual Value Range:0~100
Default Value:95
RTWPLightThd

BSC6900 ADD UCELLULB
MOD UCELLULB

WRFD020104

Intra Frequency Load
Balance

Meaning:RTWP light threshold for the load balancing algorithm
based on RTWP. If power in a cell is less than the threshold,
CPICH power in the cell will be increased.
GUI Value Range:0~100
Unit:%
Actual Value Range:0~100
Default Value:85

RTWPLightThd

BSC6910 ADD UCELLULB
MOD UCELLULB

WRFD020104

Intra Frequency Load
Balance

Meaning:RTWP light threshold for the load balancing algorithm
based on RTWP. If power in a cell is less than the threshold,
CPICH power in the cell will be increased.
GUI Value Range:0~100
Unit:%
Actual Value Range:0~100
Default Value:85

PCPICHPowerPace

BSC6900 ADD UCELLULB
MOD UCELLULB

WRFD020104

Intra Frequency Load
Balance

Meaning:Step at which the CPICH power is adjusted each time
based on the RTWP load balancing algorithm. For detailed
information about this parameter, see 3GPP TS 25.433.
GUI Value Range:0~100
Unit:0.1dB
Actual Value Range:0~10
Default Value:2

PCPICHPowerPace

BSC6910 ADD UCELLULB
MOD UCELLULB

WRFD020104

Intra Frequency Load
Balance

Meaning:Step at which the CPICH power is adjusted each time
based on the RTWP load balancing algorithm. For detailed
information about this parameter, see 3GPP TS 25.433.
GUI Value Range:0~100
Unit:0.1dB
Actual Value Range:0~10
Default Value:2

NBMUlCacAlgoSelSwitch

BSC6900 ADD UCELLALGOSWITCH
MOD UCELLALGOSWITCH

WRFD020101

Admission Control

Meaning:Selection of uplink power admission control algorithms
ALGORITHM_OFF: Uplink power admission control algorithm
disabled. ALGORITHM_FIRST: Uplink admission control
algorithm based on the power load and the predicted power load
increment caused by admitting new UEs.
ALGORITHM_SECOND: Uplink admission control algorithm
based on the number of equivalent UEs and the predicted
increment in the number of equivalent UEs to be admitted.
ALGORITHM_THIRD: Uplink admission control algorithm based
on the power load in a cell. ALGORITHM_FOURTH: Uplink
admission control algorithm based on the actual service load
and the predicted service load increment.
GUI Value Range:ALGORITHM_OFF, ALGORITHM_FIRST,
ALGORITHM_SECOND, ALGORITHM_THIRD,
ALGORITHM_FOURTH
Unit:None
Actual Value Range:ALGORITHM_OFF, ALGORITHM_FIRST,
ALGORITHM_SECOND, ALGORITHM_THIRD,
ALGORITHM_FOURTH
Default Value:None

NBMUlCacAlgoSelSwitch

BSC6910 ADD UCELLALGOSWITCH
MOD UCELLALGOSWITCH

WRFD020101

Admission Control

Meaning:Selection of uplink power admission control algorithms
ALGORITHM_OFF: Uplink power admission control algorithm
disabled. ALGORITHM_FIRST: Uplink admission control
algorithm based on the power load and the predicted power load
increment caused by admitting new UEs.
ALGORITHM_SECOND: Uplink admission control algorithm
based on the number of equivalent UEs and the predicted
increment in the number of equivalent UEs to be admitted.
ALGORITHM_THIRD: Uplink admission control algorithm based
on the power load in a cell. ALGORITHM_FOURTH: Uplink
admission control algorithm based on the actual service load
and the predicted service load increment.
GUI Value Range:ALGORITHM_OFF, ALGORITHM_FIRST,
ALGORITHM_SECOND, ALGORITHM_THIRD,
ALGORITHM_FOURTH
Unit:None
Actual Value Range:ALGORITHM_OFF, ALGORITHM_FIRST,
ALGORITHM_SECOND, ALGORITHM_THIRD,
ALGORITHM_FOURTH
Default Value:None

NBMDlCacAlgoSelSwitch

BSC6900 ADD UCELLALGOSWITCH
MOD UCELLALGOSWITCH

WRFD020101

Admission Control

Meaning:Selection of downlink admission control algorithm
ALGORITHM_OFF: Downlink power admission control algorithm
disabled ALGORITHM_FIRST: Downlink admission control
algorithm based on the power load and the predicted power load
increment caused by admitting new UEs.
ALGORITHM_SECOND: Downlink admission control algorithm
based on the number of downlink equivalent UEs and the
predicted increment in the number of downlink equivalent UEs to
be admitted. ALGORITHM_THIRD: Downlink admission control
algorithm based on the power load in a cell.
GUI Value Range:ALGORITHM_OFF, ALGORITHM_FIRST,
ALGORITHM_SECOND, ALGORITHM_THIRD
Unit:None
Actual Value Range:ALGORITHM_OFF, ALGORITHM_FIRST,
ALGORITHM_SECOND, ALGORITHM_THIRD
Default Value:None

NBMDlCacAlgoSelSwitch

BSC6910 ADD UCELLALGOSWITCH
MOD UCELLALGOSWITCH

WRFD020101

Admission Control

Meaning:Selection of downlink admission control algorithm
ALGORITHM_OFF: Downlink power admission control algorithm
disabled ALGORITHM_FIRST: Downlink admission control
algorithm based on the power load and the predicted power load
increment caused by admitting new UEs.

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Load Control Feature Parameter Description

Page 114 of 143

ALGORITHM_SECOND: Downlink admission control algorithm
based on the number of downlink equivalent UEs and the
predicted increment in the number of downlink equivalent UEs to
be admitted. ALGORITHM_THIRD: Downlink admission control
algorithm based on the power load in a cell.
GUI Value Range:ALGORITHM_OFF, ALGORITHM_FIRST,
ALGORITHM_SECOND, ALGORITHM_THIRD
Unit:None
Actual Value Range:ALGORITHM_OFF, ALGORITHM_FIRST,
ALGORITHM_SECOND, ALGORITHM_THIRD
Default Value:None
DlLdTrnsHysTime

BSC6900 ADD UCELLLDM
MOD UCELLLDM

WRFD020102
WRFD020106
WRFD140217

Load Measurement
Load Reshuffling
Inter-Frequency Load
Balancing Based on
Configurable Load
Threshold

Meaning:If the DL load state of the cell is lasted longer than this
threshold, the DL load state of the cell transfers.
GUI Value Range:10~600000
Unit:ms
Actual Value Range:10~600000
Default Value:1000

DlLdTrnsHysTime

BSC6910 ADD UCELLLDM
MOD UCELLLDM

WRFD020102
WRFD020106
WRFD140217

Load Measurement
Load Reshuffling
Inter-Frequency Load
Balancing Based on
Configurable Load
Threshold

Meaning:If the DL load state of the cell is lasted longer than this
threshold, the DL load state of the cell transfers.
GUI Value Range:10~600000
Unit:ms
Actual Value Range:10~600000
Default Value:1000

CellLdrSfResThd

BSC6900 ADD UCELLLDR
MOD UCELLLDR

WRFD020106
WRFD020108

Load Reshuffling
Code Resource
Management

Meaning:Threshold for reserved SF in a cell. This parameter is
used to determine whether the code load reshuffling (LDR) is
allowed.
GUI Value Range:SF4(SF4), SF8(SF8), SF16(SF16), SF32
(SF32), SF64(SF64), SF128(SF128), SF256(SF256)
Unit:None
Actual Value Range:SF4, SF8, SF16, SF32, SF64, SF128,
SF256
Default Value:SF8(SF8)

CellLdrSfResThd

BSC6910 ADD UCELLLDR
MOD UCELLLDR

WRFD020106
WRFD020108

Load Reshuffling
Code Resource
Management

Meaning:Threshold for reserved SF in a cell. This parameter is
used to determine whether the code load reshuffling (LDR) is
allowed.
GUI Value Range:SF4(SF4), SF8(SF8), SF16(SF16), SF32
(SF32), SF64(SF64), SF128(SF128), SF256(SF256)
Unit:None
Actual Value Range:SF4, SF8, SF16, SF32, SF64, SF128,
SF256
Default Value:SF8(SF8)

NodeBLdcAlgoSwitch

BSC6900 ADD UNODEBALGOPARA
MOD UNODEBALGOPARA

WRFD020106
WRFD020107
WRFD140217

Load Reshuffling
Overload Control
Inter-Frequency Load
Balancing Based on
Configurable Load
Threshold

Meaning:Whether to enable the algorithms for NodeB load
control. 1. IUB_LDR (Iub congestion control algorithm): When
the NodeB Iub load is heavy, users are assembled in priority
order among all the NodeBs and a part of users are selected for
LDR action (such as BE service rate reduction) in order to
reduce the NodeB Iub load. 2. NODEB_CREDIT_LDR (NodeB
level credit congestion control algorithm): When the NodeB level
credit load is heavy, users are assembled in priority order
among all the NodeBs and a part of users are selected for LDR
action in order to reduce the NodeB level credit load. 3.
LCG_CREDIT_LDR (Cell group level credit congestion control
algorithm): When the cell group level credit load is heavy, users
are assembled in priority order among all the NodeBs and a part
of users are selected for LDR action in order to reduce the cell
group level credit load. 4. IUB_OLC (Iub Overload congestion
control algorithm): When the NodeB Iub load is Overload, users
are assembled in priority order among all the NodeBs and a part
of users are selected for Olc action in order to reduce the NodeB
Iub load. 5. Whether to activate the NodeB-credit-based CLB
(Cell Load Balance) algorithm. With this algorithm, the RNC
initiates inter-frequency handovers if NodeB credit load is higher
than the value of "UlCreditCSClbTrigThd" or
"UlCreditPSClbTrigThd" in the "ADD UNODEBCLB" command.
By doing this, the NodeB credit load can be reduced. 6. Whether
to activate the cell-group-credit-based CLB (Cell Load Balance)
algorithm. With this algorithm, the RNC initiates inter-frequency
handovers if credit load in a cell group is higher than the value of
"UlCreditCSClbTrigThd" in the "ADD UNODEBCLB" command.
By doing this, the credit load in the cell group can be reduced. 7.
To enable the algorithms above, select them. Otherwise, they
are disabled.
GUI Value Range:IUB_LDR(IUB LDR Algorithm),
NODEB_CREDIT_LDR(NodeB Credit LDR Algorithm),
LCG_CREDIT_LDR(LCG Credit LDR Algorithm), IUB_OLC(IUB
OLC Algorithm), NODEB_CREDIT_CLB_SWITCH(NodeB Credit
CLB Algorithm), LCG_CREDIT_CLB_SWITCH(Local Cell Group
Credit CLB Algorithm)
Unit:None
Actual Value Range:IUB_LDR, NODEB_CREDIT_LDR,
LCG_CREDIT_LDR, IUB_OLC,
NODEB_CREDIT_CLB_SWITCH,
LCG_CREDIT_CLB_SWITCH
Default Value:IUB_LDR-0&NODEB_CREDIT_LDR0&LCG_CREDIT_LDR-0&IUB_OLC0&NODEB_CREDIT_CLB_SWITCH0&LCG_CREDIT_CLB_SWITCH-0

NodeBLdcAlgoSwitch

BSC6910 ADD UNODEBALGOPARA
MOD UNODEBALGOPARA

WRFD020106
WRFD020107
WRFD140217

Load Reshuffling
Overload Control
Inter-Frequency Load
Balancing Based on
Configurable Load
Threshold

Meaning:Whether to enable the algorithms for NodeB load
control. 1. IUB_LDR (Iub congestion control algorithm): When
the NodeB Iub load is heavy, users are assembled in priority
order among all the NodeBs and a part of users are selected for
LDR action (such as BE service rate reduction) in order to
reduce the NodeB Iub load. 2. NODEB_CREDIT_LDR (NodeB
level credit congestion control algorithm): When the NodeB level
credit load is heavy, users are assembled in priority order

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Load Control Feature Parameter Description

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among all the NodeBs and a part of users are selected for LDR
action in order to reduce the NodeB level credit load. 3.
LCG_CREDIT_LDR (Cell group level credit congestion control
algorithm): When the cell group level credit load is heavy, users
are assembled in priority order among all the NodeBs and a part
of users are selected for LDR action in order to reduce the cell
group level credit load. 4. IUB_OLC (Iub Overload congestion
control algorithm): When the NodeB Iub load is Overload, users
are assembled in priority order among all the NodeBs and a part
of users are selected for Olc action in order to reduce the NodeB
Iub load. 5. Whether to activate the NodeB-credit-based CLB
(Cell Load Balance) algorithm. With this algorithm, the RNC
initiates inter-frequency handovers if NodeB credit load is higher
than the value of "UlCreditCSClbTrigThd" or
"UlCreditPSClbTrigThd" in the "ADD UNODEBCLB" command.
By doing this, the NodeB credit load can be reduced. 6. Whether
to activate the cell-group-credit-based CLB (Cell Load Balance)
algorithm. With this algorithm, the RNC initiates inter-frequency
handovers if credit load in a cell group is higher than the value of
"UlCreditCSClbTrigThd" in the "ADD UNODEBCLB" command.
By doing this, the credit load in the cell group can be reduced. 7.
To enable the algorithms above, select them. Otherwise, they
are disabled.
GUI Value Range:IUB_LDR(IUB LDR Algorithm),
NODEB_CREDIT_LDR(NodeB Credit LDR Algorithm),
LCG_CREDIT_LDR(LCG Credit LDR Algorithm), IUB_OLC(IUB
OLC Algorithm), NODEB_CREDIT_CLB_SWITCH(NodeB Credit
CLB Algorithm), LCG_CREDIT_CLB_SWITCH(Local Cell Group
Credit CLB Algorithm)
Unit:None
Actual Value Range:IUB_LDR, NODEB_CREDIT_LDR,
LCG_CREDIT_LDR, IUB_OLC,
NODEB_CREDIT_CLB_SWITCH,
LCG_CREDIT_CLB_SWITCH
Default Value:IUB_LDR-0&NODEB_CREDIT_LDR0&LCG_CREDIT_LDR-0&IUB_OLC0&NODEB_CREDIT_CLB_SWITCH0&LCG_CREDIT_CLB_SWITCH-0
UlLdrCreditSfResThd

BSC6900 ADD UCELLLDR
MOD UCELLLDR

WRFD020106
WRFD020103

Load Reshuffling
Inter Frequency Load
Balance

Meaning:Reserved SF threshold in uplink credit LDR. The uplink
credit LDR could be triggered only when the SF factor
corresponding to the uplink reserved credit is higher than the
uplink or downlink credit SF reserved threshold.
GUI Value Range:8*SF4(8*SF4), 7*SF4(7*SF4), 6*SF4(6*SF4),
5*SF4(5*SF4), 4*SF4(4*SF4), 3*SF4(3*SF4), 2*SF4(2*SF4),
SF4(SF4), SF8(SF8), SF16(SF16), SF32(SF32), SF64(SF64),
SF128(SF128), SF256(SF256)
Unit:None
Actual Value Range:8*SF4, 7*SF4, 6*SF4, 5*SF4, 4*SF4,
3*SF4, 2*SF4, SF4, SF8, SF16, SF32, SF64, SF128, SF256
Default Value:SF8(SF8)

UlLdrCreditSfResThd

BSC6910 ADD UCELLLDR
MOD UCELLLDR

WRFD020106
WRFD020103

Load Reshuffling
Inter Frequency Load
Balance

Meaning:Reserved SF threshold in uplink credit LDR. The uplink
credit LDR could be triggered only when the SF factor
corresponding to the uplink reserved credit is higher than the
uplink or downlink credit SF reserved threshold.
GUI Value Range:8*SF4(8*SF4), 7*SF4(7*SF4), 6*SF4(6*SF4),
5*SF4(5*SF4), 4*SF4(4*SF4), 3*SF4(3*SF4), 2*SF4(2*SF4),
SF4(SF4), SF8(SF8), SF16(SF16), SF32(SF32), SF64(SF64),
SF128(SF128), SF256(SF256)
Unit:None
Actual Value Range:8*SF4, 7*SF4, 6*SF4, 5*SF4, 4*SF4,
3*SF4, 2*SF4, SF4, SF8, SF16, SF32, SF64, SF128, SF256
Default Value:SF8(SF8)

DlLdrCreditSfResThd

BSC6900 ADD UCELLLDR
MOD UCELLLDR

WRFD020106

Load Reshuffling

Meaning:Reserved SF threshold in DL credit LDR. DL credit
LDR is triggered when the SF value corresponding to the DL
remaining credit is greater than this threshold.
GUI Value Range:SF4(SF4), SF8(SF8), SF16(SF16), SF32
(SF32), SF64(SF64), SF128(SF128), SF256(SF256)
Unit:None
Actual Value Range:SF4, SF8, SF16, SF32, SF64, SF128,
SF256
Default Value:SF8(SF8)

DlLdrCreditSfResThd

BSC6910 ADD UCELLLDR
MOD UCELLLDR

WRFD020106

Load Reshuffling

Meaning:Reserved SF threshold in DL credit LDR. DL credit
LDR is triggered when the SF value corresponding to the DL
remaining credit is greater than this threshold.
GUI Value Range:SF4(SF4), SF8(SF8), SF16(SF16), SF32
(SF32), SF64(SF64), SF128(SF128), SF256(SF256)
Unit:None
Actual Value Range:SF4, SF8, SF16, SF32, SF64, SF128,
SF256
Default Value:SF8(SF8)

UlLdrCreditSfResThd

BSC6900 ADD UNODEBLDR
MOD UNODEBLDR

WRFD020106

Load Reshuffling

Meaning:Threshold of SF reserved in uplink credit LDR. The
uplink credit LDR is triggered when the SF factor corresponding
to the uplink reserved credit is higher than the uplink or downlink
credit SF reserved threshold.
GUI Value Range:8*SF4(8*SF4), 7*SF4(7*SF4), 6*SF4(6*SF4),
5*SF4(5*SF4), 4*SF4(4*SF4), 3*SF4(3*SF4), 2*SF4(2*SF4),
SF4(SF4), SF8(SF8), SF16(SF16), SF32(SF32), SF64(SF64),
SF128(SF128), SF256(SF256)
Unit:None
Actual Value Range:8*SF4, 7*SF4, 6*SF4, 5*SF4, 4*SF4,
3*SF4, 2*SF4, SF4, SF8, SF16, SF32, SF64, SF128, SF256
Default Value:SF8(SF8)

UlLdrCreditSfResThd

BSC6910 ADD UNODEBLDR
MOD UNODEBLDR

WRFD020106

Load Reshuffling

Meaning:Threshold of SF reserved in uplink credit LDR. The
uplink credit LDR is triggered when the SF factor corresponding
to the uplink reserved credit is higher than the uplink or downlink

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Load Control Feature Parameter Description

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credit SF reserved threshold.
GUI Value Range:8*SF4(8*SF4), 7*SF4(7*SF4), 6*SF4(6*SF4),
5*SF4(5*SF4), 4*SF4(4*SF4), 3*SF4(3*SF4), 2*SF4(2*SF4),
SF4(SF4), SF8(SF8), SF16(SF16), SF32(SF32), SF64(SF64),
SF128(SF128), SF256(SF256)
Unit:None
Actual Value Range:8*SF4, 7*SF4, 6*SF4, 5*SF4, 4*SF4,
3*SF4, 2*SF4, SF4, SF8, SF16, SF32, SF64, SF128, SF256
Default Value:SF8(SF8)
DlLdrCreditSfResThd

BSC6900 ADD UNODEBLDR
MOD UNODEBLDR

WRFD020106

Load Reshuffling

Meaning:Reserved SF threshold in downlink credit LDR.
Downlink credit LDR is triggered when the SF value
corresponding to the downlink remaining credit is greater than
this threshold.
GUI Value Range:SF4(SF4), SF8(SF8), SF16(SF16), SF32
(SF32), SF64(SF64), SF128(SF128), SF256(SF256)
Unit:None
Actual Value Range:SF4, SF8, SF16, SF32, SF64, SF128,
SF256
Default Value:SF8(SF8)

DlLdrCreditSfResThd

BSC6910 ADD UNODEBLDR
MOD UNODEBLDR

WRFD020106

Load Reshuffling

Meaning:Reserved SF threshold in downlink credit LDR.
Downlink credit LDR is triggered when the SF value
corresponding to the downlink remaining credit is greater than
this threshold.
GUI Value Range:SF4(SF4), SF8(SF8), SF16(SF16), SF32
(SF32), SF64(SF64), SF128(SF128), SF256(SF256)
Unit:None
Actual Value Range:SF4, SF8, SF16, SF32, SF64, SF128,
SF256
Default Value:SF8(SF8)

LdrPeriodTimerLen

BSC6900 SET ULDCPERIOD

WRFD020106
WRFD020108

Load Reshuffling
Code Resource
Management

Meaning:Period of starting LDR. If preliminary congestion
occurs, LDR is periodically performed to reduce the cell load.
The value of this parameter must be greater than 8s because: 1.
The LDR algorithm aims to slowly reduce the cell load and
control the load below the admission threshold. 2. Each LDR
action takes a period. For example, an inter-RAT load handover
causes a delay of about 5s if the compressed mode is required.
3. There is a delay for the load monitoring module responds to
the load reduction. For example, the delay is about 3s when the
L3 filtering coefficient is set to 6.
GUI Value Range:1~86400
Unit:s
Actual Value Range:1~86400
Default Value:10

LdrPeriodTimerLen

BSC6910 SET ULDCPERIOD

WRFD020106
WRFD020108

Load Reshuffling
Code Resource
Management

Meaning:Period of starting LDR. If preliminary congestion
occurs, LDR is periodically performed to reduce the cell load.
The value of this parameter must be greater than 8s because: 1.
The LDR algorithm aims to slowly reduce the cell load and
control the load below the admission threshold. 2. Each LDR
action takes a period. For example, an inter-RAT load handover
causes a delay of about 5s if the compressed mode is required.
3. There is a delay for the load monitoring module responds to
the load reduction. For example, the delay is about 3s when the
L3 filtering coefficient is set to 6.
GUI Value Range:1~86400
Unit:s
Actual Value Range:1~86400
Default Value:10

GoldUserLoadControlSwitch

BSC6900 ADD UCELLLDR
MOD UCELLLDR

WRFD020106
WRFD020131
WRFD140217

Load Reshuffling
Optimization of R99
and HSUPA Users
Fairness
Inter-Frequency Load
Balancing Based on
Configurable Load
Threshold

Meaning:Whether gold users involve in the congestion control.
According to the policy set for gold users by operators, if service
quality of gold users should be guaranteed even in resource
congestion, the switch should be turned off. If this switch is
turned on, LDR such as rate reduction and handover also occurs
on gold users even in cell resource congestion, which impacts
user service quality. If this switch is disabled, no action is
performed on gold users.
GUI Value Range:OFF(OFF), ON(ON)
Unit:None
Actual Value Range:OFF, ON
Default Value:OFF(OFF)

GoldUserLoadControlSwitch

BSC6910 ADD UCELLLDR
MOD UCELLLDR

WRFD020106
WRFD020131
WRFD140217

Load Reshuffling
Optimization of R99
and HSUPA Users
Fairness
Inter-Frequency Load
Balancing Based on
Configurable Load
Threshold

Meaning:Whether gold users involve in the congestion control.
According to the policy set for gold users by operators, if service
quality of gold users should be guaranteed even in resource
congestion, the switch should be turned off. If this switch is
turned on, LDR such as rate reduction and handover also occurs
on gold users even in cell resource congestion, which impacts
user service quality. If this switch is disabled, no action is
performed on gold users.
GUI Value Range:OFF(OFF), ON(ON)
Unit:None
Actual Value Range:OFF, ON
Default Value:OFF(OFF)

HsdpaCMPermissionInd

BSC6900 SET UCMCF

WRFD01061204
WRFD020306

HSUPA Mobility
Management
Inter-RAT Handover
Based on Load

Meaning:Whether the compressed mode (CM) can coexist with
the HSDPA service. If this parameter is set to TRUE: 1. the RNC
can enable the CM for HSDPA services. 2. The HSDPA services
can be enabled when the CM is enabled. If this parameter is set
to FALSE: 1. the CM for HSDPA services can be enabled only
after the H2D (HS-DSCH to DCH) channel switch. 2. The
HSDPA services cannot be enabled when the CM is enabled.
This switch is used for the compatibility of the HSDPA terminals
that do not support CM when HSDPA is enabled.
GUI Value Range:FALSE(Forbidden), TRUE(Permit)
Unit:None
Actual Value Range:FALSE, TRUE

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Load Control Feature Parameter Description

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Default Value:TRUE(Permit)
HsdpaCMPermissionInd

BSC6910 SET UCMCF

WRFD01061204
WRFD020306

HSUPA Mobility
Management
Inter-RAT Handover
Based on Load

Meaning:Whether the compressed mode (CM) can coexist with
the HSDPA service. If this parameter is set to TRUE: 1. the RNC
can enable the CM for HSDPA services. 2. The HSDPA services
can be enabled when the CM is enabled. If this parameter is set
to FALSE: 1. the CM for HSDPA services can be enabled only
after the H2D (HS-DSCH to DCH) channel switch. 2. The
HSDPA services cannot be enabled when the CM is enabled.
This switch is used for the compatibility of the HSDPA terminals
that do not support CM when HSDPA is enabled.
GUI Value Range:FALSE(Forbidden), TRUE(Permit)
Unit:None
Actual Value Range:FALSE, TRUE
Default Value:TRUE(Permit)

UlLdrBERateReductionRabNum

BSC6900 ADD UCELLLDR
MOD UCELLLDR

WRFD020106
WRFD021101

Load Reshuffling
Dynamic Channel
Configuration Control
(DCCC)

Meaning:Number of RABs selected in a UL LDR BE traffic rate
reduction.
GUI Value Range:1~10
Unit:None
Actual Value Range:1~10
Default Value:1

UlLdrBERateReductionRabNum

BSC6910 ADD UCELLLDR
MOD UCELLLDR

WRFD020106
WRFD021101

Load Reshuffling
Dynamic Channel
Configuration Control
(DCCC)

Meaning:Number of RABs selected in a UL LDR BE traffic rate
reduction.
GUI Value Range:1~10
Unit:None
Actual Value Range:1~10
Default Value:1

DlLdrBERateReductionRabNum

BSC6900 ADD UCELLLDR
MOD UCELLLDR

WRFD020106
WRFD021101

Load Reshuffling
Dynamic Channel
Configuration Control
(DCCC)

Meaning:Number of RABs selected in a DL LDR BE traffic rate
reduction.
GUI Value Range:1~10
Unit:None
Actual Value Range:1~10
Default Value:1

DlLdrBERateReductionRabNum

BSC6910 ADD UCELLLDR
MOD UCELLLDR

WRFD020106
WRFD021101

Load Reshuffling
Dynamic Channel
Configuration Control
(DCCC)

Meaning:Number of RABs selected in a DL LDR BE traffic rate
reduction.
GUI Value Range:1~10
Unit:None
Actual Value Range:1~10
Default Value:1

UlLdrPsRTQosRenegRabNum

BSC6900 ADD UCELLLDR
MOD UCELLLDR

WRFD020106
WRFD010506

Load Reshuffling
RAB Quality of
Service Renegotiation
over Iu Interface

Meaning:Number of RABs selected in a UL LDR uncontrolled
real-time traffic QoS renegotiation. The target users of this
parameter are the PS domain real-time users. The setting of this
parameter is similar to the setting of BE service rate reduction
user number. Considering the scenario where the candidate
users selected for DL LDR do not meet the QoS renegotiation
conditions, you need to leave some margin when setting this
parameter to ensure the success of LDR.
GUI Value Range:1~10
Unit:None
Actual Value Range:1~10
Default Value:1

UlLdrPsRTQosRenegRabNum

BSC6910 ADD UCELLLDR
MOD UCELLLDR

WRFD020106
WRFD010506

Load Reshuffling
RAB Quality of
Service Renegotiation
over Iu Interface

Meaning:Number of RABs selected in a UL LDR uncontrolled
real-time traffic QoS renegotiation. The target users of this
parameter are the PS domain real-time users. The setting of this
parameter is similar to the setting of BE service rate reduction
user number. Considering the scenario where the candidate
users selected for DL LDR do not meet the QoS renegotiation
conditions, you need to leave some margin when setting this
parameter to ensure the success of LDR.
GUI Value Range:1~10
Unit:None
Actual Value Range:1~10
Default Value:1

DlLdrPsRTQosRenegRabNum

BSC6900 ADD UCELLLDR
MOD UCELLLDR

WRFD020106
WRFD010506

Load Reshuffling
RAB Quality of
Service Renegotiation
over Iu Interface

Meaning:Number of RABs selected in a DL LDR uncontrolled
real-time traffic QoS renegotiation. The target users of this
parameter are the PS domain real-time users. The setting of this
parameter is similar to the setting of BE service rate reduction
user number. When the candidate users selected for DL LDR do
not meet the QoS renegotiation conditions, the number of users
performing QoS renegotiation is smaller than the value of this
parameter. Therefore, leave some margin when setting this
parameter to ensure the success of LDR.
GUI Value Range:1~10
Unit:None
Actual Value Range:1~10
Default Value:1

DlLdrPsRTQosRenegRabNum

BSC6910 ADD UCELLLDR
MOD UCELLLDR

WRFD020106
WRFD010506

Load Reshuffling
RAB Quality of
Service Renegotiation
over Iu Interface

Meaning:Number of RABs selected in a DL LDR uncontrolled
real-time traffic QoS renegotiation. The target users of this
parameter are the PS domain real-time users. The setting of this
parameter is similar to the setting of BE service rate reduction
user number. When the candidate users selected for DL LDR do
not meet the QoS renegotiation conditions, the number of users
performing QoS renegotiation is smaller than the value of this
parameter. Therefore, leave some margin when setting this
parameter to ensure the success of LDR.
GUI Value Range:1~10
Unit:None
Actual Value Range:1~10
Default Value:1

UlCSInterRatShouldBeHOUeNum

BSC6900 ADD UCELLLDR
MOD UCELLLDR

WRFD020106

Load Reshuffling
Inter-RAT Handover

Meaning:Number of users selected in a UL LDR CS domain
inter-RAT SHOULDBE load handover. The target users of this

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Load Control Feature Parameter Description

Page 118 of 143

WRFD020306

Based on Load

parameter are the CS domain users for whom "SHInd" is
handover to GSM should be performed.
GUI Value Range:1~10
Unit:None
Actual Value Range:1~10
Default Value:3

UlCSInterRatShouldBeHOUeNum

BSC6910 ADD UCELLLDR
MOD UCELLLDR

WRFD020106
WRFD020306

Load Reshuffling
Inter-RAT Handover
Based on Load

Meaning:Number of users selected in a UL LDR CS domain
inter-RAT SHOULDBE load handover. The target users of this
parameter are the CS domain users for whom "SHInd" is
handover to GSM should be performed.
GUI Value Range:1~10
Unit:None
Actual Value Range:1~10
Default Value:3

DlCSInterRatShouldBeHOUeNum

BSC6900 ADD UCELLLDR
MOD UCELLLDR

WRFD020106
WRFD020306

Load Reshuffling
Inter-RAT Handover
Based on Load

Meaning:Number of users selected in a DL LDR CS domain
inter-RAT SHOULDBE load handover. The target users of this
parameter are the CS domain users for whom "SHInd" is
handover to GSM should be performed.
GUI Value Range:1~10
Unit:None
Actual Value Range:1~10
Default Value:3

DlCSInterRatShouldBeHOUeNum

BSC6910 ADD UCELLLDR
MOD UCELLLDR

WRFD020106
WRFD020306

Load Reshuffling
Inter-RAT Handover
Based on Load

Meaning:Number of users selected in a DL LDR CS domain
inter-RAT SHOULDBE load handover. The target users of this
parameter are the CS domain users for whom "SHInd" is
handover to GSM should be performed.
GUI Value Range:1~10
Unit:None
Actual Value Range:1~10
Default Value:3

UlCSInterRatShouldNotHOUeNum BSC6900 ADD UCELLLDR
MOD UCELLLDR

WRFD020106
WRFD020306

Load Reshuffling
Inter-RAT Handover
Based on Load

Meaning:Number of users selected in a DL LDR CS domain
inter-RAT SHOULDNOTBE load handover. The target users of
this parameter are the CS domain users for whom "SHInd" is
handover to GSM should not be performed.
GUI Value Range:1~10
Unit:None
Actual Value Range:1~10
Default Value:3

UlCSInterRatShouldNotHOUeNum BSC6910 ADD UCELLLDR
MOD UCELLLDR

WRFD020106
WRFD020306

Load Reshuffling
Inter-RAT Handover
Based on Load

Meaning:Number of users selected in a DL LDR CS domain
inter-RAT SHOULDNOTBE load handover. The target users of
this parameter are the CS domain users for whom "SHInd" is
handover to GSM should not be performed.
GUI Value Range:1~10
Unit:None
Actual Value Range:1~10
Default Value:3

DlCSInterRatShouldNotHOUeNum BSC6900 ADD UCELLLDR
MOD UCELLLDR

WRFD020106
WRFD020306

Load Reshuffling
Inter-RAT Handover
Based on Load

Meaning:Number of users selected in a DL LDR CS domain
inter-RAT SHOULDNOTBE load handover. The target users of
this parameter are the CS domain users for whom "SHInd" is
handover to GSM should not be performed.
GUI Value Range:1~10
Unit:None
Actual Value Range:1~10
Default Value:3

DlCSInterRatShouldNotHOUeNum BSC6910 ADD UCELLLDR
MOD UCELLLDR

WRFD020106
WRFD020306

Load Reshuffling
Inter-RAT Handover
Based on Load

Meaning:Number of users selected in a DL LDR CS domain
inter-RAT SHOULDNOTBE load handover. The target users of
this parameter are the CS domain users for whom "SHInd" is
handover to GSM should not be performed.
GUI Value Range:1~10
Unit:None
Actual Value Range:1~10
Default Value:3

UlPSInterRatShouldBeHOUeNum

BSC6900 ADD UCELLLDR
MOD UCELLLDR

WRFD020106
WRFD020306

Load Reshuffling
Inter-RAT Handover
Based on Load

Meaning:Number of users selected in a UL LDR PS domain
inter-RAT SHOULDBE load handover. The target users of this
parameter are the PS domain users for whom "SHInd" is
handover to GSM should be performed.
GUI Value Range:1~10
Unit:None
Actual Value Range:1~10
Default Value:1

UlPSInterRatShouldBeHOUeNum

BSC6910 ADD UCELLLDR
MOD UCELLLDR

WRFD020106
WRFD020306

Load Reshuffling
Inter-RAT Handover
Based on Load

Meaning:Number of users selected in a UL LDR PS domain
inter-RAT SHOULDBE load handover. The target users of this
parameter are the PS domain users for whom "SHInd" is
handover to GSM should be performed.
GUI Value Range:1~10
Unit:None
Actual Value Range:1~10
Default Value:1

DlPSInterRatShouldBeHOUeNum

BSC6900 ADD UCELLLDR
MOD UCELLLDR

WRFD020106
WRFD020306

Load Reshuffling
Inter-RAT Handover
Based on Load

Meaning:Number of users selected in a DL LDR PS domain
inter-RAT SHOULDBE load handover. The target users of this
parameter are the PS domain users for whom "SHInd" is
handover to GSM should be performed.
GUI Value Range:1~10
Unit:None
Actual Value Range:1~10
Default Value:1

DlPSInterRatShouldBeHOUeNum

BSC6910 ADD UCELLLDR

WRFD020106

Load Reshuffling

Meaning:Number of users selected in a DL LDR PS domain
inter-RAT SHOULDBE load handover. The target users of this

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Load Control Feature Parameter Description

Page 119 of 143

MOD UCELLLDR

WRFD020306

Inter-RAT Handover
Based on Load

parameter are the PS domain users for whom "SHInd" is
handover to GSM should be performed.
GUI Value Range:1~10
Unit:None
Actual Value Range:1~10
Default Value:1

UlPSInterRatShouldNotHOUeNum

BSC6900 ADD UCELLLDR
MOD UCELLLDR

WRFD020106
WRFD020306

Load Reshuffling
Inter-RAT Handover
Based on Load

Meaning:Number of users selected in a UL LDR PS domain
inter-RAT SHOULDNOTBE load handover. The target users of
this parameter are the PS domain users for whom "SHInd" is
handover to GSM should not be performed.
GUI Value Range:1~10
Unit:None
Actual Value Range:1~10
Default Value:1

UlPSInterRatShouldNotHOUeNum

BSC6910 ADD UCELLLDR
MOD UCELLLDR

WRFD020106
WRFD020306

Load Reshuffling
Inter-RAT Handover
Based on Load

Meaning:Number of users selected in a UL LDR PS domain
inter-RAT SHOULDNOTBE load handover. The target users of
this parameter are the PS domain users for whom "SHInd" is
handover to GSM should not be performed.
GUI Value Range:1~10
Unit:None
Actual Value Range:1~10
Default Value:1

DlPSInterRatShouldNotHOUeNum

BSC6900 ADD UCELLLDR
MOD UCELLLDR

WRFD020106
WRFD020306

Load Reshuffling
Inter-RAT Handover
Based on Load

Meaning:Number of users selected in a DL LDR PS domain
inter-RAT SHOULDNOTBE load handover. The target users of
this parameter are the PS domain users for whom "SHInd" is
handover to GSM should not be performed.
GUI Value Range:1~10
Unit:None
Actual Value Range:1~10
Default Value:1

DlPSInterRatShouldNotHOUeNum

BSC6910 ADD UCELLLDR
MOD UCELLLDR

WRFD020106
WRFD020306

Load Reshuffling
Inter-RAT Handover
Based on Load

Meaning:Number of users selected in a DL LDR PS domain
inter-RAT SHOULDNOTBE load handover. The target users of
this parameter are the PS domain users for whom "SHInd" is
handover to GSM should not be performed.
GUI Value Range:1~10
Unit:None
Actual Value Range:1~10
Default Value:1

HsupaCMPermissionInd

BSC6900 SET UCMCF

WRFD01061204
WRFD020306

HSUPA Mobility
Management
Inter-RAT Handover
Based on Load

Meaning:Whether the compressed mode (CM) can coexist with
the HSUPA service. If this parameter is set to Permit: 1. the
RNC can enable the CM for HSUPA services. 2. The HSUPA
services can be enabled when the CM is enabled. If this
parameter is set to Limited: 1. the CM for HSUPA services can
be enabled only after the E2D (E-DCH to DCH) channel switch.
2. The HSUPA services cannot be enabled when the CM is
enabled. If this parameter is set to BasedonUECap, the RNC
determines whether CM can be enabled for HSUPA services
and whether HSUPA services can be enabled when the CM is
enabled by considering the UE capability. This switch is used for
the compatibility of the HSUPA terminals that do not support CM
when HSUPA is enabled.
GUI Value Range:Limited, Permit, BasedOnUECap(Based On
UE Capability)
Unit:None
Actual Value Range:Limited, Permit, BasedOnUECap
Default Value:BasedOnUECap(Based On UE Capability)

HsupaCMPermissionInd

BSC6910 SET UCMCF

WRFD01061204
WRFD020306

HSUPA Mobility
Management
Inter-RAT Handover
Based on Load

Meaning:Whether the compressed mode (CM) can coexist with
the HSUPA service. If this parameter is set to Permit: 1. the
RNC can enable the CM for HSUPA services. 2. The HSUPA
services can be enabled when the CM is enabled. If this
parameter is set to Limited: 1. the CM for HSUPA services can
be enabled only after the E2D (E-DCH to DCH) channel switch.
2. The HSUPA services cannot be enabled when the CM is
enabled. If this parameter is set to BasedonUECap, the RNC
determines whether CM can be enabled for HSUPA services
and whether HSUPA services can be enabled when the CM is
enabled by considering the UE capability. This switch is used for
the compatibility of the HSUPA terminals that do not support CM
when HSUPA is enabled.
GUI Value Range:Limited, Permit, BasedOnUECap(Based On
UE Capability)
Unit:None
Actual Value Range:Limited, Permit, BasedOnUECap
Default Value:BasedOnUECap(Based On UE Capability)

CsSwitch

BSC6900 SET UCORRMALGOSWITCH

WRFD011600
WRFD020701

TFO/TrFO
Meaning:1. CS_AMRC_SWITCH: When the switch is on and the
AMRC license is activated, the AMR control function is enabled
AMR/WB-AMR
Speech Rates Control for AMR services. 2.
CS_HANDOVER_TO_UTRAN_DEFAULT_CFG_SWITCH:
When the switch is on, the default configurations of signaling
and RABs, which are stipulated in 3GPP 25.331, are used for
relocation of the UE from GSM to WCDMA. When the switch is
not on, the default configurations are not used. Instead, the
complete information of RB, TrCH, and PhyCH, which are in the
HANDOVER TO UTRAN COMMAND message is used. 3.
CS_IUUP_V2_SUPPORT_SWITCH: When the switch is on and
the "Support IUUP Version 2" license is activated, the RNC
supports the TFO/TRFO function. 4.
CS_VOICE_DYN_CH_CONF_SWITCH (Dynamic CS voice
channel allocation switch): Whether to support the dynamic CS
voice channel allocation function. 5.
CS_AMRC_WB_CMP_SWITCH: When this switch is turned on,
wideband AMRC compatibility issues exist and therefore the
service data rate must not be adjusted. When this switch is
turned off, such issues do not exist and therefore the service

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Load Control Feature Parameter Description

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data rate can be adjusted. 6. CS_AMRC_NB_CMP_SWITCH:
When this switch is turned on, narrowband AMRC compatibility
issues exist and therefore the service data rate must not be
adjusted. When this switch is turned off, such issues do not exist
and therefore the service data rate can be adjusted. 7.
CS_AMRC_WB_RATE_ADJUST_GRADUALLY_SWITCH:
Whether wideband AMRC can be adjusted level by level
according to the data rate sets configured by the CN .When this
switch is turned off, wideband AMRC cannot be adjusted level
by level. When this switch is turned on, wideband AMRC can be
adjusted level by level.
GUI Value Range:CS_AMRC_SWITCH,
CS_HANDOVER_TO_UTRAN_DEFAULT_CFG_SWITCH,
CS_IUUP_V2_SUPPORT_SWITCH,
CS_VOICE_DYN_CH_CONF_SWITCH,
CS_AMRC_WB_CMP_SWITCH,
CS_AMRC_NB_CMP_SWITCH,
CS_AMRC_WB_RATE_ADJUST_GRADUALLY_SWITCH
Unit:None
Actual Value Range:CS_AMRC_SWITCH,
CS_HANDOVER_TO_UTRAN_DEFAULT_CFG_SWITCH,
CS_IUUP_V2_SUPPORT_SWITCH,
CS_VOICE_DYN_CH_CONF_SWITCH,
CS_AMRC_WB_CMP_SWITCH,
CS_AMRC_NB_CMP_SWITCH,
CS_AMRC_WB_RATE_ADJUST_GRADUALLY_SWITCH
Default Value:CS_AMRC_SWITCH0&CS_HANDOVER_TO_UTRAN_DEFAULT_CFG_SWITCH1&CS_IUUP_V2_SUPPORT_SWITCH0&CS_VOICE_DYN_CH_CONF_SWITCH0&CS_AMRC_WB_CMP_SWITCH0&CS_AMRC_NB_CMP_SWITCH0&CS_AMRC_WB_RATE_ADJUST_GRADUALLY_SWITCHCsSwitch

BSC6910 SET UCORRMALGOSWITCH

WRFD011600
WRFD020701

TFO/TrFO
Meaning:1. CS_AMRC_SWITCH: When the switch is on and the
AMRC license is activated, the AMR control function is enabled
AMR/WB-AMR
Speech Rates Control for AMR services. 2.
CS_HANDOVER_TO_UTRAN_DEFAULT_CFG_SWITCH:
When the switch is on, the default configurations of signaling
and RABs, which are stipulated in 3GPP 25.331, are used for
relocation of the UE from GSM to WCDMA. When the switch is
not on, the default configurations are not used. Instead, the
complete information of RB, TrCH, and PhyCH, which are in the
HANDOVER TO UTRAN COMMAND message is used. 3.
CS_IUUP_V2_SUPPORT_SWITCH: When the switch is on and
the "Support IUUP Version 2" license is activated, the RNC
supports the TFO/TRFO function. 4.
CS_VOICE_DYN_CH_CONF_SWITCH (Dynamic CS voice
channel allocation switch): Whether to support the dynamic CS
voice channel allocation function. 5.
CS_AMRC_WB_CMP_SWITCH: When this switch is turned on,
wideband AMRC compatibility issues exist and therefore the
service data rate must not be adjusted. When this switch is
turned off, such issues do not exist and therefore the service
data rate can be adjusted. 6. CS_AMRC_NB_CMP_SWITCH:
When this switch is turned on, narrowband AMRC compatibility
issues exist and therefore the service data rate must not be
adjusted. When this switch is turned off, such issues do not exist
and therefore the service data rate can be adjusted. 7.
CS_AMRC_WB_RATE_ADJUST_GRADUALLY_SWITCH:
Whether wideband AMRC can be adjusted level by level
according to the data rate sets configured by the CN .When this
switch is turned off, wideband AMRC cannot be adjusted level
by level. When this switch is turned on, wideband AMRC can be
adjusted level by level.
GUI Value Range:CS_AMRC_SWITCH,
CS_HANDOVER_TO_UTRAN_DEFAULT_CFG_SWITCH,
CS_IUUP_V2_SUPPORT_SWITCH,
CS_VOICE_DYN_CH_CONF_SWITCH,
CS_AMRC_WB_CMP_SWITCH,
CS_AMRC_NB_CMP_SWITCH,
CS_AMRC_WB_RATE_ADJUST_GRADUALLY_SWITCH
Unit:None
Actual Value Range:CS_AMRC_SWITCH,
CS_HANDOVER_TO_UTRAN_DEFAULT_CFG_SWITCH,
CS_IUUP_V2_SUPPORT_SWITCH,
CS_VOICE_DYN_CH_CONF_SWITCH,
CS_AMRC_WB_CMP_SWITCH,
CS_AMRC_NB_CMP_SWITCH,
CS_AMRC_WB_RATE_ADJUST_GRADUALLY_SWITCH
Default Value:CS_AMRC_SWITCH0&CS_HANDOVER_TO_UTRAN_DEFAULT_CFG_SWITCH1&CS_IUUP_V2_SUPPORT_SWITCH0&CS_VOICE_DYN_CH_CONF_SWITCH0&CS_AMRC_WB_CMP_SWITCH0&CS_AMRC_NB_CMP_SWITCH0&CS_AMRC_WB_RATE_ADJUST_GRADUALLY_SWITCH-

DlLdrAMRRateReductionRabNum

BSC6900 ADD UCELLLDR
MOD UCELLLDR

WRFD020106
WRFD020701

Load Reshuffling
Meaning:Number of RABs selected in a DL LDR-AMR voice
service rate reduction.
AMR/WB-AMR
Speech Rates Control GUI Value Range:1~10
Unit:None
Actual Value Range:1~10
Default Value:1

DlLdrAMRRateReductionRabNum

BSC6910 ADD UCELLLDR
MOD UCELLLDR

WRFD020106
WRFD020701

Load Reshuffling
Meaning:Number of RABs selected in a DL LDR-AMR voice
service rate reduction.
AMR/WB-AMR
Speech Rates Control GUI Value Range:1~10
Unit:None
Actual Value Range:1~10
Default Value:1

UlLdrAMRRateReductionRabNum

BSC6900 ADD UCELLLDR

WRFD-

Load Reshuffling

Meaning:Number of RABs selected in a UL LDR AMR traffic rate

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Load Control Feature Parameter Description

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MOD UCELLLDR

020106
WRFD020701

reduction.
AMR/WB-AMR
Speech Rates Control GUI Value Range:1~10
Unit:None
Actual Value Range:1~10
Default Value:1

UlLdrAMRRateReductionRabNum

BSC6910 ADD UCELLLDR
MOD UCELLLDR

WRFD020106
WRFD020701

Load Reshuffling
Meaning:Number of RABs selected in a UL LDR AMR traffic rate
reduction.
AMR/WB-AMR
Speech Rates Control GUI Value Range:1~10
Unit:None
Actual Value Range:1~10
Default Value:1

MaxUserNumCodeAdj

BSC6900 ADD UCELLLDR
MOD UCELLLDR

WRFD020106
WRFD020108

Load Reshuffling
Code Resource
Management

Meaning:Maximum number of users selected in code reshuffling.
Code reshuffling is triggered only when the number of users on
a code is less than or equal to this threshold. Code reshuffling
has a severe impact on the QoS. In addition, the reshuffled
users occupy two code resources during code reshuffling.
Therefore, the parameter value 1 is recommended.
GUI Value Range:1~3
Unit:None
Actual Value Range:1~3
Default Value:1

MaxUserNumCodeAdj

BSC6910 ADD UCELLLDR
MOD UCELLLDR

WRFD020106
WRFD020108

Load Reshuffling
Code Resource
Management

Meaning:Maximum number of users selected in code reshuffling.
Code reshuffling is triggered only when the number of users on
a code is less than or equal to this threshold. Code reshuffling
has a severe impact on the QoS. In addition, the reshuffled
users occupy two code resources during code reshuffling.
Therefore, the parameter value 1 is recommended.
GUI Value Range:1~3
Unit:None
Actual Value Range:1~3
Default Value:1

LdrCodePriUseInd

BSC6900 ADD UCELLLDR
MOD UCELLLDR

WRFD020106
WRFD020108

Load Reshuffling
Code Resource
Management

Meaning:Code priority indication for LDR. If this parameter is set
to TRUE, the codes with a high priority, that is the subtree with a
large code number, are reserved during the code reshuffling.
This facilitates code resource dynamic sharing for HSDPA
services. If this parameter is set to FALSE, the subtree with a
minimum number of users is selected from the candidate
subtrees. If there are multiple subtrees with a minimum number
of users, the subtree with the maximum code number is selected
for code reshuffling.
GUI Value Range:FALSE(FALSE), TRUE(TRUE)
Unit:None
Actual Value Range:FALSE, TRUE
Default Value:FALSE(FALSE)

LdrCodePriUseInd

BSC6910 ADD UCELLLDR
MOD UCELLLDR

WRFD020106
WRFD020108

Load Reshuffling
Code Resource
Management

Meaning:Code priority indication for LDR. If this parameter is set
to TRUE, the codes with a high priority, that is the subtree with a
large code number, are reserved during the code reshuffling.
This facilitates code resource dynamic sharing for HSDPA
services. If this parameter is set to FALSE, the subtree with a
minimum number of users is selected from the candidate
subtrees. If there are multiple subtrees with a minimum number
of users, the subtree with the maximum code number is selected
for code reshuffling.
GUI Value Range:FALSE(FALSE), TRUE(TRUE)
Unit:None
Actual Value Range:FALSE, TRUE
Default Value:FALSE(FALSE)

MbmsDecPowerRabThd

BSC6900 ADD UCELLLDR
MOD UCELLLDR

WRFDLoad Reshuffling
020106
MBMS Load Control
WRFD01061603

Meaning:When the priority of the RAB of MBMS services
exceeds this threshold, reconfigure the MBMS power to the
minimum power. The MBMS service at each rate is set on the
basis of two power levels. The power set for an MBMS service is
determined according to cell load during the service access. In
addition, the FACH power of the MBMS service must be
decreased as required in the duration of cell congestion. a part
of services with high priority, for example the disaster pre-alert,
however, do not need the coverage shrink caused by cell load.
In such a case, you can adjust the service priority threshold to
protect the services with high priority against the impact of the
service access failure and the load control algorithm.
GUI Value Range:1~15
Unit:None
Actual Value Range:1~15
Default Value:1

MbmsDecPowerRabThd

BSC6910 ADD UCELLLDR
MOD UCELLLDR

WRFD020106

Load Reshuffling

Meaning:When the priority of the RAB of MBMS services
exceeds this threshold, reconfigure the MBMS power to the
minimum power. The MBMS service at each rate is set on the
basis of two power levels. The power set for an MBMS service is
determined according to cell load during the service access. In
addition, the FACH power of the MBMS service must be
decreased as required in the duration of cell congestion.
Services with high priority, for example the disaster pre-alert,
however, do not need the coverage shrink caused by cell load.
In such a case, you can adjust the service priority threshold to
protect the services with high priority against the impact of the
service access failure and the load control algorithm.
GUI Value Range:1~15
Unit:None
Actual Value Range:1~15
Default Value:1

TrafficType

BSC6900 ADD UCELLREDIRECTION
MOD UCELLREDIRECTION
RMV UCELLREDIRECTION

WRFD020120

Service Steering and
Load Sharing in RRC
Connection Setup

Meaning:Type of the service supporting RRC redirections based
on service steering. Note: The service steering-based RRC
redirection algorithm cannot distinguish AMR or VP services

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Load Control Feature Parameter Description

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through the RRC Connection Setup Request message sent by
UEs of the R5 version or earlier and considers all services as
AMR services.
GUI Value Range:AMR, VP, PSR99, PSHSPA
Unit:None
Actual Value Range:AMR, VP, PSR99, PSHSPA
Default Value:None
TrafficType

BSC6910 ADD UCELLREDIRECTION
MOD UCELLREDIRECTION
RMV UCELLREDIRECTION

WRFD020120

Service Steering and
Load Sharing in RRC
Connection Setup

Meaning:Type of the service supporting RRC redirections based
on service steering. Note: The service steering-based RRC
redirection algorithm cannot distinguish AMR or VP services
through the RRC Connection Setup Request message sent by
UEs of the R5 version or earlier and considers all services as
AMR services.
GUI Value Range:AMR, VP, PSR99, PSHSPA
Unit:None
Actual Value Range:AMR, VP, PSR99, PSHSPA
Default Value:None

TrafficType

BSC6900 SET UREDIRECTION

WRFD020120

Service Steering and
Load Sharing in RRC
Connection Setup

Meaning:Traffic class whose RRC redirection parameters are to
be set
GUI Value Range:AMR, VP, PSR99, PSHSPA
Unit:None
Actual Value Range:AMR, VP, PSR99, PSHSPA
Default Value:None

TrafficType

BSC6910 SET UREDIRECTION

WRFD020120

Service Steering and
Load Sharing in RRC
Connection Setup

Meaning:Traffic class whose RRC redirection parameters are to
be set
GUI Value Range:AMR, VP, PSR99, PSHSPA
Unit:None
Actual Value Range:AMR, VP, PSR99, PSHSPA
Default Value:None

RedirSwitch

BSC6900 SET UREDIRECTION

WRFD020120

Service Steering and
Load Sharing in RRC
Connection Setup

Meaning:Whether the service-based RRC redirection algorithm
is applicable to a specific service. When this switch is turned on,
the RNC checks the service type during initial RRC connection
setup. If the service type is defined by "TrafficType", the RNC
initiates a redirection based on the configured frequency. This
algorithm is valid only when the DR_RRC_DRD_SWITCH check
box under the "DrSwitch" parameter in the "SET
UCORRMALGOSWITCH" command is selected and this
parameter is set to ONLY_TO_INTER_FREQUENCY or
ONLY_TO_INTER_RAT. If this parameter is set to OFF, the
service-based RRC redirection algorithm is not enabled on the
specified service.
GUI Value Range:OFF, ONLY_TO_INTER_FREQUENCY,
ONLY_TO_INTER_RAT
Unit:None
Actual Value Range:OFF, ONLY_TO_INTER_FREQUENCY,
ONLY_TO_INTER_RAT
Default Value:None

RedirSwitch

BSC6910 SET UREDIRECTION

WRFD020120

Service Steering and
Load Sharing in RRC
Connection Setup

Meaning:Whether the service-based RRC redirection algorithm
is applicable to a specific service. When this switch is turned on,
the RNC checks the service type during initial RRC connection
setup. If the service type is defined by "TrafficType", the RNC
initiates a redirection based on the configured frequency. This
algorithm is valid only when the DR_RRC_DRD_SWITCH check
box under the "DrSwitch" parameter in the "SET
UCORRMALGOSWITCH" command is selected and this
parameter is set to ONLY_TO_INTER_FREQUENCY or
ONLY_TO_INTER_RAT. If this parameter is set to OFF, the
service-based RRC redirection algorithm is not enabled on the
specified service.
GUI Value Range:OFF, ONLY_TO_INTER_FREQUENCY,
ONLY_TO_INTER_RAT
Unit:None
Actual Value Range:OFF, ONLY_TO_INTER_FREQUENCY,
ONLY_TO_INTER_RAT
Default Value:None

RedirEcN0Thd

BSC6900 SET UREDIRECTION

WRFD02040003
WRFD020120

Inter System Redirect
Service Steering and
Load Sharing in RRC
Connection Setup

Meaning:When the target UARFCN of redirection indicates a
specific frequency band and the Ec/N0 value of the current cell
carried in the RRC Connection Request message is smaller than
the value of this parameter, service-based RRC redirection is
forbidden. For details, see 3GPP TS 25.215.
GUI Value Range:-24~0
Unit:dB
Actual Value Range:-24~0
Default Value:-24

RedirEcN0Thd

BSC6910 SET UREDIRECTION

WRFD02040003
WRFD020120

Inter System Redirect
Service Steering and
Load Sharing in RRC
Connection Setup

Meaning:When the target UARFCN of redirection indicates a
specific frequency band and the Ec/N0 value of the current cell
carried in the RRC Connection Request message is smaller than
the value of this parameter, service-based RRC redirection is
forbidden. For details, see 3GPP TS 25.215.
GUI Value Range:-24~0
Unit:dB
Actual Value Range:-24~0
Default Value:-24

RedirFactorOfNorm

BSC6900 SET UREDIRECTION

WRFD020120

Service Steering and
Load Sharing in RRC
Connection Setup

Meaning:Inter-RAT redirection scale factor for service steering
when the load of the target cell is normal. When the cell load is
normal, the RNC calculates the probability at which UEs are
redirected to an inter-frequency neighboring cell during interRAT RRC redirections for service steering. If this parameter is
set to 0, admitted users do not perform inter-RAT RRC
redirections for service steering when the cell load is normal.
GUI Value Range:0~100
Unit:%

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Load Control Feature Parameter Description

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Actual Value Range:0~100
Default Value:0
RedirFactorOfNorm

BSC6910 SET UREDIRECTION

WRFD020120

Service Steering and
Load Sharing in RRC
Connection Setup

Meaning:Inter-RAT redirection scale factor for service steering
when the load of the target cell is normal. When the cell load is
normal, the RNC calculates the probability at which UEs are
redirected to an inter-frequency neighboring cell during interRAT RRC redirections for service steering. If this parameter is
set to 0, admitted users do not perform inter-RAT RRC
redirections for service steering when the cell load is normal.
GUI Value Range:0~100
Unit:%
Actual Value Range:0~100
Default Value:0

RedirFactorOfLDR

BSC6900 SET UREDIRECTION

WRFD020120

Service Steering and
Load Sharing in RRC
Connection Setup

Meaning:Inter-RAT redirection scale factor for service steering
when the target cell is congested. When the cell enters the LDR
or OLC state, the RNC calculates the probability at which UEs
are redirected to a GSM cell during inter-RAT RRC redirections
for service steering. If this parameter is set to 0, admitted users
do not perform inter-RAT RRC redirections for service steering
when the cell is congested.
GUI Value Range:0~100
Unit:%
Actual Value Range:0~100
Default Value:None

RedirFactorOfLDR

BSC6910 SET UREDIRECTION

WRFD020120

Service Steering and
Load Sharing in RRC
Connection Setup

Meaning:Inter-RAT redirection scale factor for service steering
when the target cell is congested. When the cell enters the LDR
or OLC state, the RNC calculates the probability at which UEs
are redirected to a GSM cell during inter-RAT RRC redirections
for service steering. If this parameter is set to 0, admitted users
do not perform inter-RAT RRC redirections for service steering
when the cell is congested.
GUI Value Range:0~100
Unit:%
Actual Value Range:0~100
Default Value:None

RedirBandInd

BSC6900 SET UREDIRECTION

WRFD020120

Service Steering and
Load Sharing in RRC
Connection Setup

Meaning:Frequency band of the target uplink and downlink
UARFCNs for service-based inter-frequency RRC redirections. If
this parameter is set to DependOnNCell, the RNC selects the
target UARFCNs of neighboring cells that are on the same
frequency band as the source cell but have different frequencies
from the source cell during bind handovers. It is recommended
that this parameter be set to DependOnNCell without the
consideration of neighboring cells under the neighboring RNC,
that is, in the non-overlapped network. This helps avoid selfredirection. Self-redirection is a process in which the target cell
for redirection has the same UARFCN as the source cell and the
UE still initiates access in the source cell.
GUI Value Range:Band1, Band2, Band3, Band4, Band5, Band6,
Band7, Band8, Band9, DependOnNCell, BandIndNotUsed
Unit:None
Actual Value Range:Band1, Band2, Band3, Band4, Band5,
Band6, Band7, Band8, Band9, DependOnNCell,
BandIndNotUsed
Default Value:DependOnNCell

RedirBandInd

BSC6910 SET UREDIRECTION

WRFD020120

Service Steering and
Load Sharing in RRC
Connection Setup

Meaning:Frequency band of the target uplink and downlink
UARFCNs for service-based inter-frequency RRC redirections. If
this parameter is set to DependOnNCell, the RNC selects the
target UARFCNs of neighboring cells that are on the same
frequency band as the source cell but have different frequencies
from the source cell during bind handovers. It is recommended
that this parameter be set to DependOnNCell without the
consideration of neighboring cells under the neighboring RNC,
that is, in the non-overlapped network. This helps avoid selfredirection. Self-redirection is a process in which the target cell
for redirection has the same UARFCN as the source cell and the
UE still initiates access in the source cell.
GUI Value Range:Band1, Band2, Band3, Band4, Band5, Band6,
Band7, Band8, Band9, DependOnNCell, BandIndNotUsed
Unit:None
Actual Value Range:Band1, Band2, Band3, Band4, Band5,
Band6, Band7, Band8, Band9, DependOnNCell,
BandIndNotUsed
Default Value:DependOnNCell

ReDirUARFCNUplinkInd

BSC6900 SET UREDIRECTION

WRFD020120

Service Steering and
Load Sharing in RRC
Connection Setup

Meaning:Whether the target UL UARFCN to which the UE is
redirected needs to be configured. TRUE indicates that the UL
UARFCN needs to be reconfigured. FALSE indicates that the UL
UARFCN need not be manually configured and it is
automatically configured according to the relation between the
UL and DL UARFCNs.
GUI Value Range:FALSE, TRUE
Unit:None
Actual Value Range:FALSE, TRUE
Default Value:None

ReDirUARFCNUplinkInd

BSC6910 SET UREDIRECTION

WRFD020120

Service Steering and
Load Sharing in RRC
Connection Setup

Meaning:Whether the target UL UARFCN to which the UE is
redirected needs to be configured. TRUE indicates that the UL
UARFCN needs to be reconfigured. FALSE indicates that the UL
UARFCN need not be manually configured and it is
automatically configured according to the relation between the
UL and DL UARFCNs.
GUI Value Range:FALSE, TRUE
Unit:None
Actual Value Range:FALSE, TRUE
Default Value:None

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Load Control Feature Parameter Description

Page 124 of 143

ReDirUARFCNUplink

BSC6900 SET UREDIRECTION

WRFD020120

Service Steering and
Load Sharing in RRC
Connection Setup

Meaning:Target UL UARFCN for service-based inter-frequency
RRC redirection. The value range of the UL UARFCN depends
on the RedirBandInd. The relation between the RedirBandInd
and the value range of the UL UARFCN is as follows: BAND1
Common UARFCNs: [9612-9888] Special UARFCNs: none
BAND2 Common UARFCNs: [9262-9538] Special UARFCNs:
{12, 37, 62, 87, 112, 137, 162, 187, 212, 237, 262, 287} BAND3
Common UARFCNs: [937-1288] Special UARFCNs: none
BAND4 Common UARFCNs: [1312-1513] Special UARFCNs:
{1662, 1687, 1712, 1737, 1762, 1787, 1812, 1837, 1862}
BAND5 Common UARFCNs: [4132-4233] Special UARFCNs:
{782, 787, 807, 812, 837, 862} BAND6 Common UARFCNs:
[4162-4188] Special UARFCNs: {812, 837} BAND7 Common
UARFCNs: [2012-2338] Special UARFCNs: {2362, 2387, 2412,
2437, 2462, 2487, 2512, 2537, 2562, 2587, 2612, 2637, 2662,
2687} BAND8 Common UARFCNs: [2712-2863] Special
UARFCNs: none BAND9 Common UARFCNs: [8762-8912]
Special UARFCNs: none BandIndNotUsed: [0-16383] Value
range: 0-16383 If the UL UARFCN is not manually set, if
RedirBandInd is set to BAND1, BAND2, BAND3, BAND4,
BAND5, BAND6, BAND7, BAND8, or BAND9, and if the DL
UARFCN is valid, then the target UL UARFCN of the RRC
redirection is automatically set according to the following
principles: If the DL UARFCN is a common UARFCN, the
relation between the UL UARFCN and the DL UARFCN is as
follows: BAND1: UL UARFCN = DL UARFCN - 950 BAND2: UL
UARFCN = DL UARFCN - 400 BAND3: UL UARFCN = DL
UARFCN - 225 BAND4: UL UARFCN = DL UARFCN - 225
BAND5: UL UARFCN = DL UARFCN - 225 BAND6: UL
UARFCN = DL UARFCN - 225 BAND7: UL UARFCN = DL
UARFCN - 225 BAND8: UL UARFCN = DL UARFCN - 225
BAND9: UL UARFCN = DL UARFCN - 475 If the DL UARFCN is
a special UARFCN, the relation between the UL UARFCN and
the DL UARFCN is as follows: BAND2: UL UARFCN = DL
UARFCN - 400 BAND4: UL UARFCN = DL UARFCN - 225
BAND5: UL UARFCN = DL UARFCN - 225 BAND6: UL
UARFCN = DL UARFCN - 225 BAND7: UL UARFCN = DL
UARFCN - 225
GUI Value Range:0~16383
Unit:None
Actual Value Range:0~16383
Default Value:None

ReDirUARFCNUplink

BSC6910 SET UREDIRECTION

WRFD020120

Service Steering and
Load Sharing in RRC
Connection Setup

Meaning:Target UL UARFCN for service-based inter-frequency
RRC redirection. The value range of the UL UARFCN depends
on the RedirBandInd. The relation between the RedirBandInd
and the value range of the UL UARFCN is as follows: BAND1
Common UARFCNs: [9612-9888] Special UARFCNs: none
BAND2 Common UARFCNs: [9262-9538] Special UARFCNs:
{12, 37, 62, 87, 112, 137, 162, 187, 212, 237, 262, 287} BAND3
Common UARFCNs: [937-1288] Special UARFCNs: none
BAND4 Common UARFCNs: [1312-1513] Special UARFCNs:
{1662, 1687, 1712, 1737, 1762, 1787, 1812, 1837, 1862}
BAND5 Common UARFCNs: [4132-4233] Special UARFCNs:
{782, 787, 807, 812, 837, 862} BAND6 Common UARFCNs:
[4162-4188] Special UARFCNs: {812, 837} BAND7 Common
UARFCNs: [2012-2338] Special UARFCNs: {2362, 2387, 2412,
2437, 2462, 2487, 2512, 2537, 2562, 2587, 2612, 2637, 2662,
2687} BAND8 Common UARFCNs: [2712-2863] Special
UARFCNs: none BAND9 Common UARFCNs: [8762-8912]
Special UARFCNs: none BandIndNotUsed: [0-16383] Value
range: 0-16383 If the UL UARFCN is not manually set, if
RedirBandInd is set to BAND1, BAND2, BAND3, BAND4,
BAND5, BAND6, BAND7, BAND8, or BAND9, and if the DL
UARFCN is valid, then the target UL UARFCN of the RRC
redirection is automatically set according to the following
principles: If the DL UARFCN is a common UARFCN, the
relation between the UL UARFCN and the DL UARFCN is as
follows: BAND1: UL UARFCN = DL UARFCN - 950 BAND2: UL
UARFCN = DL UARFCN - 400 BAND3: UL UARFCN = DL
UARFCN - 225 BAND4: UL UARFCN = DL UARFCN - 225
BAND5: UL UARFCN = DL UARFCN - 225 BAND6: UL
UARFCN = DL UARFCN - 225 BAND7: UL UARFCN = DL
UARFCN - 225 BAND8: UL UARFCN = DL UARFCN - 225
BAND9: UL UARFCN = DL UARFCN - 475 If the DL UARFCN is
a special UARFCN, the relation between the UL UARFCN and
the DL UARFCN is as follows: BAND2: UL UARFCN = DL
UARFCN - 400 BAND4: UL UARFCN = DL UARFCN - 225
BAND5: UL UARFCN = DL UARFCN - 225 BAND6: UL
UARFCN = DL UARFCN - 225 BAND7: UL UARFCN = DL
UARFCN - 225
GUI Value Range:0~16383
Unit:None
Actual Value Range:0~16383
Default Value:None

ReDirUARFCNDownlink

BSC6900 SET UREDIRECTION

WRFD020120

Service Steering and
Load Sharing in RRC
Connection Setup

Meaning:Target DL UARFCN for service-based inter-frequency
RRC redirection. Different values of "RedirBandInd" correspond
to different value ranges of the UARFCN. Range of each
Downlink Band Indication is as follow: BAND1 Common
UARFCNs: [10562-10838] Special UARFCNs: none BAND2
Common UARFCNs: [9662-9938] Special UARFCNs: {412, 437,
462, 487, 512, 537, 562, 587, 612, 637, 662, 687} BAND3
Common UARFCNs: [1162-1513] Special UARFCNs: none
BAND4 Common UARFCNs: [1537-1738] Special UARFCNs:
{1887, 1912, 1937, 1962, 1987, 2012, 2037, 2062, 2087}
BAND5 Common UARFCNs: [4357-4458] Special UARFCNs:
{1007, 1012, 1032, 1037, 1062, 1087} BAND6 Common
UARFCNs: [4387-4413] Special UARFCNs: {1037, 1062}
BAND7 Common UARFCNs: [2237-2563] Special UARFCNs:
{2587, 2612, 2637, 2662, 2687, 2712, 2737, 2762, 2787, 2812,
2837, 2862, 2887, 2912} BAND8 Common UARFCNs: [29373088] Special UARFCNs: none BAND9 Common UARFCNs:
[9237-9387] Special UARFCNs: none BandIndNotUsed [0-

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Load Control Feature Parameter Description

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16383]
GUI Value Range:0~16383
Unit:None
Actual Value Range:0~16383
Default Value:None
ReDirUARFCNDownlink

BSC6910 SET UREDIRECTION

WRFD020120

Service Steering and
Load Sharing in RRC
Connection Setup

Meaning:Target DL UARFCN for service-based inter-frequency
RRC redirection. Different values of "RedirBandInd" correspond
to different value ranges of the UARFCN. Range of each
Downlink Band Indication is as follow: BAND1 Common
UARFCNs: [10562-10838] Special UARFCNs: none BAND2
Common UARFCNs: [9662-9938] Special UARFCNs: {412, 437,
462, 487, 512, 537, 562, 587, 612, 637, 662, 687} BAND3
Common UARFCNs: [1162-1513] Special UARFCNs: none
BAND4 Common UARFCNs: [1537-1738] Special UARFCNs:
{1887, 1912, 1937, 1962, 1987, 2012, 2037, 2062, 2087}
BAND5 Common UARFCNs: [4357-4458] Special UARFCNs:
{1007, 1012, 1032, 1037, 1062, 1087} BAND6 Common
UARFCNs: [4387-4413] Special UARFCNs: {1037, 1062}
BAND7 Common UARFCNs: [2237-2563] Special UARFCNs:
{2587, 2612, 2637, 2662, 2687, 2712, 2737, 2762, 2787, 2812,
2837, 2862, 2887, 2912} BAND8 Common UARFCNs: [29373088] Special UARFCNs: none BAND9 Common UARFCNs:
[9237-9387] Special UARFCNs: none BandIndNotUsed [016383]
GUI Value Range:0~16383
Unit:None
Actual Value Range:0~16383
Default Value:None

CellId

BSC6900 ADD UFACH
MOD UFACH
RMV UFACH

None

None

Meaning:The logical cell ID uniquely identifies a cell in a radio
network. The logical cell ID is configured at the RNC. The RNC
sends the cell ID to the base station during a cell setup
procedure. The mapping between logical cell IDs and local cell
IDs are configured at the RNC. The RNC supports a maximum
of 5100 logical cells. Logical cells are uniquely but not
necessarily consecutively numbered within a RNC. For example,
you can set the ID of a logical cell to 0 and that of another logical
cell to 2. For clear and easy identification, adhere to the
following numbering principles: Specify different number ranges
for logical cells in different subracks. For example, you can
specify the range of 0 to 899 for the logical cells in subrack 0
(MPS) and the range of 900 to 1799 for the logical cells in
subrack 1 (EPS).For detailed information about this parameter,
see 3GPP TS 25.401.
GUI Value Range:0~65535
Unit:None
Actual Value Range:0~65535
Default Value:None

CellId

BSC6910 ADD UFACH
MOD UFACH
RMV UFACH

None

None

Meaning:The logical cell ID uniquely identifies a cell in a radio
network. The logical cell ID is configured at the RNC. The RNC
sends the cell ID to the base station during a cell setup
procedure. The mapping between logical cell IDs and local cell
IDs are configured at the RNC. The RNC supports a maximum
of 20000 logical cells. Logical cells are uniquely but not
necessarily consecutively numbered within a RNC. For example,
you can set the ID of a logical cell to 0 and that of another logical
cell to 2. For detailed information about this parameter, see
3GPP TS 25.401.
GUI Value Range:0~65535
Unit:None
Actual Value Range:0~65535
Default Value:None

10 Counters
Table 10-1 Counter description
Counter ID

Counter Name

Counter Description

NE

Feature ID

Feature Name

67179338

RRC.AttConnEstab.EmgCall

Number of RRC
Connection Requests
for Cell (Emergency
Call)

BSC6900

WRFD-021104
WRFD-010510

Emergency Call
3.4/6.8/13.6/27.2Kbps
RRC Connection and
Radio Access Bearer
Establishment and
Release

67179466

RRC.SuccConnEstab.EmgCall

Number of Successful
RRC Connection
Setups for Cell
(Emergency Call)

BSC6900

WRFD-021104
WRFD-010510

Emergency Call
3.4/6.8/13.6/27.2Kbps
RRC Connection and
Radio Access Bearer
Establishment and
Release

67179848

VS.RAB.AttRelCS.Preempt

Number of CS RAB
Release Requests for
Cell (RAB Preempted)

BSC6900

WRFD-010505
WRFD-010510

Queuing and PreEmption
3.4/6.8/13.6/27.2Kbps
RRC Connection and
Radio Access Bearer
Establishment and
Release

67179953

VS.RAB.AttRelPS.RABPreempt

Number of PS RAB
Release Requests for
Cell (RAB Preempted)

BSC6900

WRFD-010510
WRFD-010505

3.4/6.8/13.6/27.2Kbps
RRC Connection and
Radio Access Bearer
Establishment and
Release
Queuing and PreEmption

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67180069

VS.RAB.AbnormRel.CS.Preempt

Number of CS RAB
BSC6900
Release Attempts for
Cell (RAB Preemption)

WRFD-010510
WRFD-010505

3.4/6.8/13.6/27.2Kbps
RRC Connection and
Radio Access Bearer
Establishment and
Release
Queuing and PreEmption

67180076

VS.RAB.AbnormRel.PS.Preempt

Number of PS RAB
Abnormal Released
Due to RAB
Preemption for Cell

BSC6900

WRFD-010510
WRFD-010505

3.4/6.8/13.6/27.2Kbps
RRC Connection and
Radio Access Bearer
Establishment and
Release
Queuing and PreEmption

67180549

VS.HHO.AttInterCellLB.SingleRL

Number of Outgoing
BSC6900
Inter-Frequency Hard
Handover Attempts
Due to Load Balancing
for Cell (Single RL)

WRFD-020103

Inter Frequency Load
Balance

67180550

VS.HHO.SuccInterCellLB.SingleRL

Number of Successful
Outgoing InterFrequency Hard
Handovers Due to
Load Balancing for
Cell (Single RL)

BSC6900

WRFD-020103

Inter Frequency Load
Balance

67183900

VS.HHO.AttInterFreqOut

Number of Outgoing
BSC6900
Inter-Frequency Hard
Handover Attempts for
Cell

WRFD-020302
WRFD-020304
WRFD-020106

Inter Frequency Hard
Handover Based on
Coverage
Inter Frequency Hard
Handover Based on
DL QoS
Load Reshuffling

67183901

VS.HHO.SuccInterFreqOut

Number of Successful
Outgoing InterFrequency Hard
Handovers for Cell

BSC6900

WRFD-020302
WRFD-020304
WRFD-020106

Inter Frequency Hard
Handover Based on
Coverage
Inter Frequency Hard
Handover Based on
DL QoS
Load Reshuffling

67189460

RRC.AttConnRelDCCH.Preempt

Number of RRC
Connection Releases
on DCCH due to
Preemption for Cell

BSC6900

WRFD-010505
WRFD-010510

Queuing and PreEmption
3.4/6.8/13.6/27.2Kbps
RRC Connection and
Radio Access Bearer
Establishment and
Release

67189466

RRC.AttConnRelCCCH.Preempt

Number of RRC
Connection Releases
on CCCH due to
Preemption for Cell

BSC6900

WRFD-010505
WRFD-010510

Queuing and PreEmption
3.4/6.8/13.6/27.2Kbps
RRC Connection and
Radio Access Bearer
Establishment and
Release

67189474

VS.RRC.Rej.Redir.InterRat

Number of RRC
Connection Rejects
during redirection
between inter-RAT
cells for cell

BSC6900

WRFD-02040003
WRFD-010510

Inter System Redirect
3.4/6.8/13.6/27.2Kbps
RRC Connection and
Radio Access Bearer
Establishment and
Release

67189852

VS.LCC.OLC.UL.Num

Number of UL
Overload Congestions
for Cell

BSC6900

WRFD-020107

Overload Control

67189853

VS.LCC.OLC.DL.Num

Number of DL
Overload Congestions
for Cell

BSC6900

WRFD-020107

Overload Control

67189856

VS.PUC.High.Offset.Updt

Number of Qoffset
BSC6900
Updates Due to Heavy
Load for Cell

WRFD-020105

Potential User Control

67189857

VS.PUC.Light.Offset.Updt

Number of Qoffset
Updates Due to Light
Load for Cell

BSC6900

WRFD-020105

Potential User Control

67189858

VS.PUC.Norm.Offset.Updt

Number of Qoffset
Updates Due to
Normal Load for Cell

BSC6900

WRFD-020105

Potential User Control

67190073

VS.RRC.AttConnRel.Preempt.RNC

Number of RRC
Connection Releases
due to Preemption for
RNC

BSC6900

WRFD-010505
WRFD-010510

Queuing and PreEmption
3.4/6.8/13.6/27.2Kbps
RRC Connection and
Radio Access Bearer
Establishment and
Release

67190183

VS.IU.RelReqPS.Preempt

Number of IU
RELEASE REQUEST
Messages Sent by
RNC to CN in PS
Domain (RAB
Preempted)

BSC6900

WRFD-010505
WRFD-010510

Queuing and PreEmption
3.4/6.8/13.6/27.2Kbps
RRC Connection and
Radio Access Bearer
Establishment and
Release

67190435

VS.LCC.LDR.InterFreq

Number of UEs

BSC6900

WRFD-020103

Inter Frequency Load

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Load Control Feature Parameter Description

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Performing InterFrequency Load
Handovers in Basic
Congestion for Cell

Balance

67190436

VS.LCC.LDR.UL.BERateDown

Number of UEs
BSC6900
Performing BE Service
Downsizing in UL
Basic Congestion

WRFD-020106

Load Reshuffling

67190437

VS.LCC.LDR.DL.BERateDown

Number of UEs
BSC6900
Performing BE Service
Downsizing in DL
Basic Congestion

WRFD-020106

Load Reshuffling

67190438

VS.LCC.LDR.UL.QosReNego

Number of UEs
Performing
Uncontrollable RealTime Service QoS
Renegotiation in UL
Basic Congestion for
Cell

BSC6900

WRFD-020106

Load Reshuffling

67190439

VS.LCC.LDR.DL.QosReNego

Number of UEs
Performing
Uncontrollable RealTime Service QoS
Renegotiation in DL
Basic Congestion for
Cell

BSC6900

WRFD-020106

Load Reshuffling

67190442

VS.PUC.Light.IntSrch.Updt

Number of
Sintersearch Updates
Due to Light Load for
Cell

BSC6900

WRFD-020105

Potential User Control

67190443

VS.PUC.Norm.IntSrch.Updt

Number of
Sintersearch Updates
Due to Normal Load
for Cell

BSC6900

WRFD-020105

Potential User Control

67190444

VS.PUC.High.IntSrch.Updt

Number of
BSC6900
Sintersearch Updates
Due to Heavy Load for
Cell

WRFD-020105

Potential User Control

67190840

VS.RAB.AbnormRel.PS.OLC

Number of PS Domain BSC6900
RABs Released Due
to Congestion for Cell

WRFD-020107

Overload Control

67190841

VS.RAB.AbnormRel.CS.OLC

Number of CS Domain BSC6900
RABs Released Due
to Congestion for Cell

WRFD-010510
WRFD-020107

3.4/6.8/13.6/27.2Kbps
RRC Connection and
Radio Access Bearer
Establishment and
Release
Overload Control

67190846

VS.CellBreath.CPICHUp

Number of Upward
CPICH Power
Adjustments Due to
Cell Breathing for Cell

BSC6900

WRFD-020104

Intra Frequency Load
Balance

67190847

VS.CellBreath.CPICHDown

Number of Downward
CPICH Power
Adjustments Due to
Cell Breathing for Cell

BSC6900

WRFD-020104

Intra Frequency Load
Balance

67191150

VS.LCC.OLC.HSDPA.UserRel

Number of HSDPA
UEs Released Due to
Overload Congestion
for Cell

BSC6900

WRFD-020107

Overload Control

67191151

VS.LCC.LDR.HSDPA.InterFreq

Number of HSDPA
UEs Performing InterFrequency Load
Handovers in Basic
Congestion for Cell

BSC6900

WRFD-020103

Inter Frequency Load
Balance

67191657

VS.RAB.SFOccupy.MAX

Maximum Number of
BSC6900
SFs that Have Been
Occupied (Let the SFs
that Have Been
Occupied a Unitary SF
of 256) for Cell

WRFD-020108

Code Resource
Management

67192134

VS.IUB.UL.Cong.Num

Number of Iub UL
Congestions

BSC6900

WRFD-020106

Load Reshuffling

67192135

VS.IUB.DL.Cong.Num

Number of Iub DL
Congestions

BSC6900

WRFD-020106

Load Reshuffling

67192397

VS.LCC.LDR.CodeAdj.Att

Number of UEs
Performing Code
Adjustment Attempts
in DL Basic
Congestion for Cell

BSC6900

WRFD-020106

Load Reshuffling

67192398

VS.LCC.LDR.MbmsPowerDec

Number of MBMS
Services Performing
Power Decreasing in
Basic Congestion for
Cell

BSC6900

WRFD-020106

Load Reshuffling

67192426

VS.LCC.LDR.AMRRateUL

Number of UEs
Performing AMR Rate
Decrease in UL Basic
Congestion for Cell

BSC6900

WRFD-020106

Load Reshuffling

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Load Control Feature Parameter Description

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67192427

VS.LCC.LDR.AMRRateDL

Number of UEs
Performing AMR Rate
Decrease in DL Basic
Congestion for Cell

BSC6900

WRFD-020106

Load Reshuffling

67192549

VS.LCC.OLC.D2C

Number of UEs
Transferring BE
Service to Common
Channel in Overload
Congestion for Cell

BSC6900

WRFD-020107

Overload Control

67192637

VS.LCC.LDR.Num.ULPower

Number of Times a
Cell Is in LDR State
Due to UL Power
Congestion for Cell

BSC6900

WRFD-020106

Load Reshuffling

67192638

VS.LCC.LDR.Num.DLPower

Number of Times a
Cell Is in LDR State
Due to DL Power
Congestion for Cell

BSC6900

WRFD-020106

Load Reshuffling

67192639

VS.LCC.LDR.Num.DLCode

Number of Times a
Cell Is in LDR State
Due to DL Code
Resource Congestion
for Cell

BSC6900

WRFD-020106

Load Reshuffling

67192640

VS.LCC.LDR.Num.ULCE

Number of Times a
Cell Is in LDR State
Due to UL CE
Resource Congestion
for Cell

BSC6900

WRFD-020106

Load Reshuffling

67192641

VS.LCC.LDR.Num.DLCE

Number of Times a
Cell Is in LDR State
Due to DL CE
Resource Congestion
for Cell

BSC6900

WRFD-020106

Load Reshuffling

67192642

VS.LCC.LDR.Num.ULIub

Number of Times a
Cell Is in LDR State
Due to UL Iub
Transmission
Resource Congestion
for Cell

BSC6900

WRFD-020106

Load Reshuffling

67192643

VS.LCC.LDR.Num.DLIub

Number of Times a
Cell Is in LDR State
Due to DL Iub
Transmission
Resource Congestion
for Cell

BSC6900

WRFD-020106

Load Reshuffling

67192644

VS.LCC.LDR.HSUPA.InterFreq

Number of HSUPA
UEs Performing InterFrequency Load
Handovers in Basic
Congestion for Cell

BSC6900

WRFD-020103

Inter Frequency Load
Balance

67192646

VS.LCC.OLC.UL.TF

Number of UEs
BSC6900
Performing BE Service
TF Control in UL
Overload Congestion
for Cell

WRFD-020107

Overload Control

67192647

VS.LCC.OLC.UL.UserRel

Number of UEs
Released Due to UL
Overload Congestion
for Cell

BSC6900

WRFD-020107

Overload Control

67192648

VS.LCC.OLC.HSUPA.UserRel

Number of HSUPA
UEs Released during
Overload Congestion
for Cell

BSC6900

WRFD-020107

Overload Control

67192649

VS.LCC.OLC.DL.TF

Number of UEs
BSC6900
Performing BE Service
TF Control in DL
Overload Congestion
for Cell

WRFD-020107

Overload Control

67192650

VS.LCC.OLC.DL.UserRel

Number of UEs
Released Due to DL
Overload Congestion
for Cell

BSC6900

WRFD-020107

Overload Control

67192937

VS.RAC.NewCallReq.Preempt.Cong

Number of
BSC6900
Preemptions During
RAB Establishment for
Cell

WRFD-010505

Queuing and PreEmption

67192938

VS.RAC.HHO.Preempt.Cong

Number of
Preemptions During
HHO for Cell

BSC6900

WRFD-010505

Queuing and PreEmption

67192975

VS.RAB.RelReqPS.BE.HSDPA.Cong.Golden

Number of HSDPA
BSC6900
RABs Carrying Golden
Users BE Traffic
Released Due to
Congestion for Cell

WRFD-010610
WRFD-020107

HSDPA Introduction
Package
Overload Control

67192976

VS.RAB.RelReqPS.BE.HSDPA.Cong.Silver

Number of HSDPA
RABs Carrying Silver
Users BE Traffic
Released Due to
Congestion for Cell

BSC6900

WRFD-010610
WRFD-020107

HSDPA Introduction
Package
Overload Control

67192977

VS.RAB.RelReqPS.BE.HSDPA.Cong.Copper

Number of HSDPA

BSC6900

WRFD-010610

HSDPA Introduction

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Load Control Feature Parameter Description

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RABs Carrying Copper
Users BE Traffic
Released Due to
Congestion for Cell

WRFD-020107

Package
Overload Control

67192978

VS.RAB.RelReqPS.BE.HSUPA.Cong.Golden

Number of HSUPA
BSC6900
RABs Carrying Golden
Users BE Traffic
Released Due to
Congestion for Cell

WRFD-010612
WRFD-020107

HSUPA Introduction
Package
Overload Control

67192979

VS.RAB.RelReqPS.BE.HSUPA.Cong.Silver

Number of HSUPA
RABs Carrying Silver
Users BE Traffic
Released Due to
Congestion for Cell

BSC6900

WRFD-010612
WRFD-020107

HSUPA Introduction
Package
Overload Control

67192980

VS.RAB.RelReqPS.BE.HSUPA.Cong.Copper

Number of HSUPA
BSC6900
RABs Carrying Copper
Users BE Traffic
Released Due to
Congestion for Cell

WRFD-010612
WRFD-020107

HSUPA Introduction
Package
Overload Control

67193409

VS.LCC.LDR.CodeAdj.Succ

Number of UEs
BSC6900
Performing Successful
Code Adjustment in
DL Basic Congestion
for Cell

WRFD-020108

Code Resource
Management

67193410

VS.LCC.HSDPA.CodeAdj.Succ

Number of UEs
BSC6900
Performing Successful
Code Adjustment
Based on HSDPA for
Cell

WRFD-020108

Code Resource
Management

67193709

VS.HHO.AttInterCellLB.MultiRL

Number of Outgoing
BSC6900
Inter-Frequency Hard
Handover Attempts
Due to Load Balancing
for Cell (Multiple RLs)

WRFD-020103

Inter Frequency Load
Balance

67193710

VS.HHO.SuccInterCellLB.MultiRL

Number of Successful
Outgoing InterFrequency Hard
Handovers Due to
Load Balancing for
Cell (Multiple RLs)

BSC6900

WRFD-020103

Inter Frequency Load
Balance

67194970

VS.LCC.OLC.MBMS.PTM.RBRel

Number of MBMS
BSC6900
PTM Service Releases
in Overload
Congestion for Cell

WRFD-020107

Overload Control

67194971

VS.LCC.OLC.MBMS.PTP.RBRel

Number of MBMS PTP BSC6900
Service Releases in
Overload Congestion
for Cell

WRFD-020107

Overload Control

67195992

VS.LCC.HSDPA.CodeAdj.Att

Number of UEs
Performing Code
Adjustment Based on
HSDPA for Cell

BSC6900

WRFD-020108

Code Resource
Management

67196031

VS.RRC.Rej.Redir.Service

Number of RRC
Connection Rejects
Due to Service-based
RRC Redirection for
Cell

BSC6900

WRFD-020120
WRFD-010510

Service Steering and
Load Sharing in RRC
Connection Setup
3.4/6.8/13.6/27.2Kbps
RRC Connection and
Radio Access Bearer
Establishment and
Release

67196293

VS.DRD.IFREQ.CS.MBDR.RBSetup.AttOut

Number of CS Voice
Directed Retry
Attempts Based on
Inter-Frequency
Measurement for Cell

BSC6900

WRFD-020103
WRFD-020402

Inter Frequency Load
Balance
Measurement Based
Direct Retry

67196294

VS.DRD.IFREQ.CS.MBDR.RBSetup.SuccOut

Number of Successful
CS Voice Directed
Retry Based on InterFrequency
Measurement for Cell

BSC6900

WRFD-020103
WRFD-020402

Inter Frequency Load
Balance
Measurement Based
Direct Retry

67196295

VS.DRD.IFREQ.PS.MBDR.R99.RBSetup.AttOut

Number of PS R99
Directed Retry
Attempts Based on
Inter-Frequency
Measurement for Cell

BSC6900

WRFD-020103
WRFD-020402

Inter Frequency Load
Balance
Measurement Based
Direct Retry

67196296

VS.DRD.IFREQ.PS.MBDR.R99.RBSetup.SuccOut

Number of Successful BSC6900
PS R99 Directed Retry
Based on InterFrequency
Measurement for Cell

WRFD-020103
WRFD-020402

Inter Frequency Load
Balance
Measurement Based
Direct Retry

67196297

VS.DRD.IFREQ.PS.MBDR.HResCong.RBSetup.AttOut

Number of HSDPA PS BSC6900
Directed Retry
Attempts Based on
Inter-Frequency
Measurement for Cell

WRFD-020103
WRFD-020402

Inter Frequency Load
Balance
Measurement Based
Direct Retry

67196298

VS.DRD.IFREQ.PS.MBDR.HResCong.RBSetup.SuccOut Number of Successful
HSDPA PS Directed
Retry Based on InterFrequency
Measurement for Cell

WRFD-020103
WRFD-020402

Inter Frequency Load
Balance
Measurement Based
Direct Retry

BSC6900

http://localhost:7890/pages/GEC0207J/02/GEC0207J/02/resources/en-us_... 6/3/2014

Load Control Feature Parameter Description

Page 130 of 143

67199617

VS.MeanRTWP

Mean Power of Totally BSC6900
Received Bandwidth
for Cell

WRFD-020102

Load Measurement

67199618

VS.MeanTCP

Mean Transmitted
Power of Carrier for
Cell

BSC6900

WRFD-020102

Load Measurement

67199680

VS.MaxRTWP

Maximum Power of
Totally Received
Bandwidth for Cell

BSC6900

WRFD-020102

Load Measurement

67199681

VS.MinRTWP

Minimum Power of
Totally Received
Bandwidth for Cell

BSC6900

WRFD-020102

Load Measurement

67199682

VS.MaxTCP

Maximum Transmitted
Power of Carrier for
Cell

BSC6900

WRFD-020102

Load Measurement

67199683

VS.MinTCP

Minimum Transmitted
Power of Carrier for
Cell

BSC6900

WRFD-020102

Load Measurement

67199691

VS.MultRAB.SF8

Number of multi-RAB
UEs that Occupy the
DL R99 Codes with
the Spreading Factor
(SF) of 8 for Cell

BSC6900

WRFD-020108

Code Resource
Management

67199692

VS.MultRAB.SF16

Number of multi-RAB
UEs that Occupy the
DL R99 Codes with
the Spreading Factor
(SF) of 16 for Cell

BSC6900

WRFD-020108

Code Resource
Management

67199693

VS.MultRAB.SF32

Number of multi-RAB
UEs that Occupy the
DL R99 Codes with
the Spreading Factor
(SF) of 32 for Cell

BSC6900

WRFD-020108

Code Resource
Management

67199694

VS.MultRAB.SF64

Number of multi-RAB
UEs that Occupy the
DL R99 Codes with
the Spreading Factor
(SF) of 64 for Cell

BSC6900

WRFD-020108

Code Resource
Management

67199698

VS.SingleRAB.SF4

Number of single-RAB
UEs that Occupy the
DL R99 Codes with
Spreading Factor (SF)
of 4 for Cell

BSC6900

WRFD-020108

Code Resource
Management

67199699

VS.SingleRAB.SF8

Number of single-RAB
UEs that Occupy the
DL R99 Codes with
Spreading Factor (SF)
of 8 for Cell

BSC6900

WRFD-020108

Code Resource
Management

67199700

VS.SingleRAB.SF16

Number of single-RAB
UEs that Occupy the
DL R99 Codes with
Spreading Factor (SF)
of 16 for Cell

BSC6900

WRFD-020108

Code Resource
Management

67199701

VS.SingleRAB.SF32

Number of single-RAB
UEs that Occupy the
DL R99 Codes with
Spreading Factor (SF)
of 32 for Cell

BSC6900

WRFD-020108

Code Resource
Management

67199702

VS.SingleRAB.SF64

Number of single-RAB
UEs that Occupy the
DL R99 Codes with
Spreading Factor (SF)
of 64 for Cell

BSC6900

WRFD-020108

Code Resource
Management

67199703

VS.SingleRAB.SF128

Number of single-RAB
UEs that Occupy the
DL R99 Codes with
Spreading Factor (SF)
of 128 for Cell

BSC6900

WRFD-020108

Code Resource
Management

67199704

VS.SingleRAB.SF256

Number of single-RAB
UEs that Occupy the
DL R99 Codes with
Spreading Factor (SF)
of 256 for Cell

BSC6900

WRFD-020108

Code Resource
Management

67202900

VS.MaxTCP.NonHS

Maximum NonHSDPA Transmitted
Carrier Power for Cell

BSC6900

WRFD-020102

Load Measurement

67202901

VS.MinTCP.NonHS

Minimum Non-HSDPA
Transmitted Carrier
Power for Cell

BSC6900

WRFD-020102

Load Measurement

67202902

VS.MeanTCP.NonHS

Mean Non-HSDPA
Transmitted Carrier
Power for Cell

BSC6900

WRFD-020102

Load Measurement

67202917

VS.CellBreath.CPICHMin.Time

Duration of Minimum
Values of CPICH
Power Due to Cell
Breathing for Cell

BSC6900

WRFD-020104

Intra Frequency Load
Balance

67202918

VS.CellBreath.CPICHMax.Time

Duration of Maximum

BSC6900

WRFD-020104

Intra Frequency Load

http://localhost:7890/pages/GEC0207J/02/GEC0207J/02/resources/en-us_... 6/3/2014

Load Control Feature Parameter Description

Page 131 of 143

Values of CPICH
Power Due to Cell
Breathing for Cell

Balance

67202919

VS.CellBreath.TCPUnder.Time

Duration of TCP
Smaller Than Cell
Breathing Lower
Threshold for Cell

BSC6900

WRFD-020104

Intra Frequency Load
Balance

67202920

VS.CellBreath.TCPOver.Time

Duration of TCP
Greater Than Cell
Breathing Upper
Threshold for Cell

BSC6900

WRFD-020104

Intra Frequency Load
Balance

67202942

VS.MultRAB.SF4

Number of multi-RAB
UEs that Occupy the
DL R99 Codes with
the Spreading Factor
(SF) of 4 for Cell

BSC6900

WRFD-020108

Code Resource
Management

67202943

VS.MultRAB.SF128

Number of multi-RAB
UEs that Occupy the
DL R99 Codes with
the Spreading Factor
(SF) of 128 for Cell

BSC6900

WRFD-020108

Code Resource
Management

67202944

VS.MultRAB.SF256

Number of multi-RAB
UEs that Occupy the
DL R99 Codes with
the Spreading Factor
(SF) of 256 for Cell

BSC6900

WRFD-020108

Code Resource
Management

67202982

VS.HSDPA.MaxRequiredPwr

Maximum Power
Required by HSDSCH for Cell

BSC6900

WRFD-020102

Load Measurement

67202983

VS.HSDPA.MinRequiredPwr

Minimum Power
Required by HSDSCH for Cell

BSC6900

WRFD-020102

Load Measurement

67202984

VS.HSDPA.MeanRequiredPwr

Mean Power Required
by HS-DSCH for Cell

BSC6900

WRFD-020102

Load Measurement

67203402

VS.LCC.OLC.UL.Time

Duration of UL
Overload Congestion
for Cell

BSC6900

WRFD-020107

Overload Control

67203403

VS.LCC.OLC.DL.Time

Duration of DL
Overload Congestion
for Cell

BSC6900

WRFD-020107

Overload Control

67203416

VS.RAB.SFOccupy

Mean Number of SFs BSC6900
that Have Been
Occupied (Let the SFs
that Have Been
Occupied a Unitary SF
of 256) for Cell

WRFD-020108

Code Resource
Management

67203854

VS.IUB.UL.Cong.Time

Duration of Iub UL
Congestion

BSC6900

WRFD-020106

Load Reshuffling

67203855

VS.IUB.DL.Cong.Time

Duration of Iub DL
Congestion

BSC6900

WRFD-020106

Load Reshuffling

67203991

VS.LCC.LDR.Time.ULPower

Duration of Cell in
LDR State Due to UL
Power Congestion for
Cell

BSC6900

WRFD-020106

Load Reshuffling

67203992

VS.LCC.LDR.Time.DLPower

Duration of Cell in
LDR State Due to DL
Power Congestion for
Cell

BSC6900

WRFD-020106

Load Reshuffling

67203993

VS.LCC.LDR.Time.DLCode

Duration of Cell in
LDR State Due to DL
Code Resource
Congestion for Cell

BSC6900

WRFD-020106

Load Reshuffling

67203994

VS.LCC.LDR.Time.ULCE

Duration of Cell in
LDR State Due to UL
CE Resource
Congestion

BSC6900

WRFD-020106

Load Reshuffling

67203995

VS.LCC.LDR.Time.DLCE

Duration of Cell in
LDR State Due to DL
CE Resource
Congestion

BSC6900

WRFD-020106

Load Reshuffling

67203996

VS.LCC.LDR.Time.ULIub

Duration of Cell in
LDR State Due to UL
Iub Transmission
Resource Congestion
for Cell

BSC6900

WRFD-020106

Load Reshuffling

67203997

VS.LCC.LDR.Time.DLIub

Duration of Cell in
LDR State Due to DL
Iub Transmission
Resource Congestion
for Cell

BSC6900

WRFD-020106

Load Reshuffling

73393916

VS.RAB.AttEstabCS.Queue

Number of Queuing
Attempts Due to
Insufficient Resource
in the CS RAB
Assignment
Establishment
Procedure for Cell

BSC6900

WRFD-010505

Queuing and PreEmption

http://localhost:7890/pages/GEC0207J/02/GEC0207J/02/resources/en-us_... 6/3/2014

Load Control Feature Parameter Description

Page 132 of 143

73393917

VS.RAB.AttEstabPS.Queue

Number of Queuing
Attempts Due to
Insufficient Resource
in the PS RAB
Assignment
Establishment
Procedure for Cell

BSC6900

WRFD-010505

Queuing and PreEmption

73393918

VS.RAB.Estab.QueueTime.CS

Average Duration of a
CS Queuing in the
RAB Establishment
Procedure for Cell

BSC6900

WRFD-010505

Queuing and PreEmption

73393919

VS.RAB.Estab.QueueTime.PS

Average Duration of a
PS Queuing in the
RAB Establishment
Procedure for Cell

BSC6900

WRFD-010505

Queuing and PreEmption

73393920

VS.RAB.SuccEstabCS.Queue

Number of Successful
CS Establishment
After Queuing for Cell

BSC6900

WRFD-010505

Queuing and PreEmption

73393921

VS.RAB.SuccEstabPS.Queue

Number of Successful
PS Establishment
After Queuing for Cell

BSC6900

WRFD-010505

Queuing and PreEmption

73393939

VS.HHO.AttInterFreqOut.CS.TotalTxPwr

Number of CS InterFrequency Hard
Handover Attempts
Based on Cell Total
Transmit Power for
Cell

BSC6900

WRFD-020106
WRFD-140217

Load Reshuffling
Inter-Frequency Load
Balancing Based on
Configurable Load
Threshold

73393940

VS.HHO.AttInterFreqOut.PS.TotalTxPwr

Number of PS InterFrequency Hard
Handover Attempts
Based on Cell Total
Transmit Power for
Cell

BSC6900

WRFD-020106
WRFD-140217

Load Reshuffling
Inter-Frequency Load
Balancing Based on
Configurable Load
Threshold

73393941

VS.HHO.AttInterFreqOut.CS.TotalRxPwr

Number of CS InterBSC6900
Frequency Hard
Handover Attempts
Based on Cell Total
Receive Power for Cell

WRFD-020106
WRFD-140217

Load Reshuffling
Inter-Frequency Load
Balancing Based on
Configurable Load
Threshold

73393942

VS.HHO.AttInterFreqOut.PS.TotalRxPwr

Number of PS InterBSC6900
Frequency Hard
Handover Attempts
Based on Cell Total
Receive Power for Cell

WRFD-020106
WRFD-140217

Load Reshuffling
Inter-Frequency Load
Balancing Based on
Configurable Load
Threshold

73393943

VS.HHO.AttInterFreqOut.CS.Code

Number of CS InterFrequency Hard
Handover Attempts
Based on Code
Resources for Cell

BSC6900

WRFD-020106
WRFD-140217

Load Reshuffling
Inter-Frequency Load
Balancing Based on
Configurable Load
Threshold

73393944

VS.HHO.AttInterFreqOut.PS.Code

Number of PS InterFrequency Hard
Handover Attempts
Based on Code
Resources for Cell

BSC6900

WRFD-020106
WRFD-140217

Load Reshuffling
Inter-Frequency Load
Balancing Based on
Configurable Load
Threshold

73393950

VS.HHO.SuccInterFreqOut.CS.TotalTxPwr

Number of Successful
CS Inter-Frequency
Hard Handovers
Based on Cell Total
Transmit Power for
Cell

BSC6900

WRFD-020106
WRFD-140217

Load Reshuffling
Inter-Frequency Load
Balancing Based on
Configurable Load
Threshold

73393951

VS.HHO.SuccInterFreqOut.PS.TotalTxPwr

Number of Successful
PS Inter-Frequency
Hard Handovers
Based on Cell Total
Transmit Power for
Cell

BSC6900

WRFD-020106
WRFD-140217

Load Reshuffling
Inter-Frequency Load
Balancing Based on
Configurable Load
Threshold

73393952

VS.HHO.SuccInterFreqOut.CS.TotalRxPwr

Number of Successful BSC6900
CS Inter-Frequency
Hard Handovers
Based on Cell Total
Receive Power for Cell

WRFD-020106
WRFD-140217

Load Reshuffling
Inter-Frequency Load
Balancing Based on
Configurable Load
Threshold

73393953

VS.HHO.SuccInterFreqOut.PS.TotalRxPwr

Number of Successful BSC6900
PS Inter-Frequency
Hard Handovers
Based on Cell Total
Receive Power for Cell

WRFD-020106
WRFD-140217

Load Reshuffling
Inter-Frequency Load
Balancing Based on
Configurable Load
Threshold

73393954

VS.HHO.SuccInterFreqOut.CS.Code

Number of Successful
CS Inter-Frequency
Hard Handovers
Based on Code
Resources for Cell

BSC6900

WRFD-020106
WRFD-140217

Load Reshuffling
Inter-Frequency Load
Balancing Based on
Configurable Load
Threshold

73393955

VS.HHO.SuccInterFreqOut.PS.Code

Number of Successful
PS Inter-Frequency
Hard Handovers
Based on Code
Resources for Cell

BSC6900

WRFD-020106
WRFD-140217

Load Reshuffling
Inter-Frequency Load
Balancing Based on
Configurable Load
Threshold

73394053

VS.DRD.PhyRecfg.AttOut

Number of Outgoing
BSC6900
DRD Attempts through
Physical Channel
Reconfiguration for

WRFD-020103
WRFD-02040001

Inter Frequency Load
Balance
Intra System Direct
Retry

http://localhost:7890/pages/GEC0207J/02/GEC0207J/02/resources/en-us_... 6/3/2014

Load Control Feature Parameter Description

Page 133 of 143

Cell
73394054

VS.DRD.PhyRecfg.SuccOut

Number of Successful
Outgoing DRDs
through Physical
Channel
Reconfiguration for
Cell

BSC6900

WRFD-020103
WRFD-02040001

Inter Frequency Load
Balance
Intra System Direct
Retry

73394055

VS.DRD.PhyRecfg.AttIn

Number of Incoming
BSC6900
DRD Attempts through
Physical Channel
Reconfiguration for
Cell

WRFD-020103
WRFD-02040001

Inter Frequency Load
Balance
Intra System Direct
Retry

73394056

VS.DRD.PhyRecfg.SuccIn

Number of Successful
Incoming DRDs
through Physical
Channel
Reconfiguration for
Cell

BSC6900

WRFD-020103
WRFD-02040001

Inter Frequency Load
Balance
Intra System Direct
Retry

73403758

VS.HSUPA.MaxRSEPS

Maximum Received
Scheduled E-DCH
Power Share for Cell

BSC6900

WRFD-020102

Load Measurement

73403760

VS.HSUPA.MinRSEPS

Minimum Received
Scheduled E-DCH
Power Share for Cell

BSC6900

WRFD-020102

Load Measurement

73415859

VS.HSUPA.MeanRSEPS

Average Received
Scheduled E-DCH
Power Share for Cell

BSC6900

WRFD-020102

Load Measurement

73421493

VS.RRC.Rej.Redir.Dist

Number of DistanceBased RRC
Redirections for Cell

BSC6900

WRFD-02040003
WRFD-02040005
WRFD-020401

Inter System Redirect
Inter-Frequency
Redirection Based on
Distance
Inter-RAT Redirection
Based on Distance

73423313

VS.ULB.CPICH.AdjustNum

Number of CPICH
Power Adjustments
Based on RTWP for
Cell

BSC6900

WRFD-020104

Intra Frequency Load
Balance

73423948

VS.BackGroundNoise.Update

Number of Automatic
Uplink Background
Noise Updates in a
Cell

BSC6900

WRFD-020102

Load Measurement

73424203

VS.HHO.AttInterFreqOut.PS.UlCE

Number of PS InterFrequency Hard
Handover Attempts
Based on UL CE for
Cell

BSC6900

WRFD-020106
WRFD-140217

Load Reshuffling
Inter-Frequency Load
Balancing Based on
Configurable Load
Threshold

73424204

VS.HHO.SuccInterFreqOut.PS.UlCE

Number of Successful
PS Inter-Frequency
Hard Handovers
Based on UL CE for
Cell

BSC6900

WRFD-020106
WRFD-140217

Load Reshuffling
Inter-Frequency Load
Balancing Based on
Configurable Load
Threshold

73424243

VS.HHO.AttInterFreqOut.PS.DlCE

Number of PS InterFrequency Hard
Handover Attempts
Based on DL CE for
Cell

BSC6900

WRFD-140217

Inter-Frequency Load
Balancing Based on
Configurable Load
Threshold

73424244

VS.HHO.SuccInterFreqOut.PS.DlCE

Number of Successful
PS Inter-Frequency
Hard Handovers
Based on DL CE for
Cell

BSC6900

WRFD-140217

Inter-Frequency Load
Balancing Based on
Configurable Load
Threshold

73424245

VS.HHO.AttInterFreqOut.CS.DlCE

Number of CS InterFrequency Hard
Handover Attempts
Based on DL CE for
Cell

BSC6900

WRFD-140217

Inter-Frequency Load
Balancing Based on
Configurable Load
Threshold

73424246

VS.HHO.AttInterFreqOut.CS.UlCE

Number of CS InterFrequency Hard
Handover Attempts
Based on UL CE for
Cell

BSC6900

WRFD-140217

Inter-Frequency Load
Balancing Based on
Configurable Load
Threshold

73424247

VS.HHO.SuccInterFreqOut.CS.UlCE

Number of Successful
CS Inter-Frequency
Hard Handovers
Based on UL CE for
Cell

BSC6900

WRFD-140217

Inter-Frequency Load
Balancing Based on
Configurable Load
Threshold

73424248

VS.HHO.SuccInterFreqOut.CS.DlCE

Number of Successful
CS Inter-Frequency
Hard Handovers
Based on DL CE for
Cell

BSC6900

WRFD-140217

Inter-Frequency Load
Balancing Based on
Configurable Load
Threshold

73424787

VS.MaxULActualPowerLoad

Max Uplink Actual Cell BSC6900
Load

WRFD-020102

Load Measurement

73424788

VS.MinULActualPowerLoad

Min Uplink Actual Cell
Load

BSC6900

WRFD-020102

Load Measurement

73424972

VS.RRC.Rej.Redir.Dist.IntraRat

Number of DistanceBased RRC Inter-

BSC6900

WRFD-02040005

Inter-Frequency
Redirection Based on

http://localhost:7890/pages/GEC0207J/02/GEC0207J/02/resources/en-us_... 6/3/2014

Load Control Feature Parameter Description

Page 134 of 143

frequency
Redirections for Cell

Distance

73441123

VS.ULB.CPICHMin.Time

Duration of PCPICH
BSC6900
Power Under Minimum
RTWP Threshold

WRFD-020104

Intra Frequency Load
Balance

73441143

VS.HSDPA.MaxRequiredPwr.Free

Maximum Power
Required for Free
HSDPA Users for Cell

BSC6900

WRFD-020102

Load Measurement

73441144

VS.HSDPA.MeanRequiredPwr.Free

Average Power
Required for Free
HSDPA Users for Cell

BSC6900

WRFD-020102

Load Measurement

73441212

VS.BackGroundNoise.Mean

Average Uplink
BSC6900
Background Noise in a
Cell

WRFD-020102

Load Measurement

73441215

VS.BackGroundNoise.Max

Maximum Uplink
BSC6900
Background Noise in a
Cell

WRFD-020102

Load Measurement

73441246

VS.LCC.CLB.CS.InterFreq

Number of CS UEs
Involved in InterFrequency Loadbased Handovers in a
CS CLB Cell

BSC6900

WRFD-140217

Inter-Frequency Load
Balancing Based on
Configurable Load
Threshold

73441247

VS.LCC.CLB.PS.InterFreq

Number of PS UEs
Involved in InterFrequency Loadbased Handovers in a
PS CLB Cell

BSC6900

WRFD-140217

Inter-Frequency Load
Balancing Based on
Configurable Load
Threshold

73441505

VS.MeanULActualPowerLoad

Mean Uplink Actual
Cell Load

BSC6900

WRFD-020102

Load Measurement

67179338

RRC.AttConnEstab.EmgCall

Number of RRC
Connection Requests
for Cell (Emergency
Call)

BSC6910

WRFD-021104
WRFD-010510

Emergency Call
3.4/6.8/13.6/27.2Kbps
RRC Connection and
Radio Access Bearer
Establishment and
Release

67179466

RRC.SuccConnEstab.EmgCall

Number of Successful
RRC Connection
Setups for Cell
(Emergency Call)

BSC6910

WRFD-021104
WRFD-010510

Emergency Call
3.4/6.8/13.6/27.2Kbps
RRC Connection and
Radio Access Bearer
Establishment and
Release

67179848

VS.RAB.AttRelCS.Preempt

Number of CS RAB
Release Requests for
Cell (RAB Preempted)

BSC6910

WRFD-010505
WRFD-010510

Queuing and PreEmption
3.4/6.8/13.6/27.2Kbps
RRC Connection and
Radio Access Bearer
Establishment and
Release

67179953

VS.RAB.AttRelPS.RABPreempt

Number of PS RAB
Release Requests for
Cell (RAB Preempted)

BSC6910

WRFD-010510
WRFD-010505

3.4/6.8/13.6/27.2Kbps
RRC Connection and
Radio Access Bearer
Establishment and
Release
Queuing and PreEmption

67180069

VS.RAB.AbnormRel.CS.Preempt

Number of CS RAB
BSC6910
Release Attempts for
Cell (RAB Preemption)

WRFD-010510
WRFD-010505

3.4/6.8/13.6/27.2Kbps
RRC Connection and
Radio Access Bearer
Establishment and
Release
Queuing and PreEmption

67180076

VS.RAB.AbnormRel.PS.Preempt

Number of PS RAB
Abnormal Released
Due to RAB
Preemption for Cell

BSC6910

WRFD-010510
WRFD-010505

3.4/6.8/13.6/27.2Kbps
RRC Connection and
Radio Access Bearer
Establishment and
Release
Queuing and PreEmption

67180549

VS.HHO.AttInterCellLB.SingleRL

Number of Outgoing
BSC6910
Inter-Frequency Hard
Handover Attempts
Due to Load Balancing
for Cell (Single RL)

WRFD-020103

Inter Frequency Load
Balance

67180550

VS.HHO.SuccInterCellLB.SingleRL

Number of Successful
Outgoing InterFrequency Hard
Handovers Due to
Load Balancing for
Cell (Single RL)

BSC6910

WRFD-020103

Inter Frequency Load
Balance

67183900

VS.HHO.AttInterFreqOut

Number of Outgoing
BSC6910
Inter-Frequency Hard
Handover Attempts for
Cell

WRFD-020302
WRFD-020304
WRFD-020106

Inter Frequency Hard
Handover Based on
Coverage
Inter Frequency Hard
Handover Based on
DL QoS
Load Reshuffling

67183901

VS.HHO.SuccInterFreqOut

Number of Successful

WRFD-020302

Inter Frequency Hard

BSC6910

http://localhost:7890/pages/GEC0207J/02/GEC0207J/02/resources/en-us_... 6/3/2014

Load Control Feature Parameter Description

Page 135 of 143

Outgoing InterFrequency Hard
Handovers for Cell

WRFD-020304
WRFD-020106

Handover Based on
Coverage
Inter Frequency Hard
Handover Based on
DL QoS
Load Reshuffling

67189460

RRC.AttConnRelDCCH.Preempt

Number of RRC
Connection Releases
on DCCH due to
Preemption for Cell

BSC6910

WRFD-010505
WRFD-010510

Queuing and PreEmption
3.4/6.8/13.6/27.2Kbps
RRC Connection and
Radio Access Bearer
Establishment and
Release

67189466

RRC.AttConnRelCCCH.Preempt

Number of RRC
Connection Releases
on CCCH due to
Preemption for Cell

BSC6910

WRFD-010505
WRFD-010510

Queuing and PreEmption
3.4/6.8/13.6/27.2Kbps
RRC Connection and
Radio Access Bearer
Establishment and
Release

67189474

VS.RRC.Rej.Redir.InterRat

Number of RRC
Connection Rejects
during redirection
between inter-RAT
cells for cell

BSC6910

WRFD-02040003
WRFD-010510

Inter System Redirect
3.4/6.8/13.6/27.2Kbps
RRC Connection and
Radio Access Bearer
Establishment and
Release

67189852

VS.LCC.OLC.UL.Num

Number of UL
Overload Congestions
for Cell

BSC6910

WRFD-020107

Overload Control

67189853

VS.LCC.OLC.DL.Num

Number of DL
Overload Congestions
for Cell

BSC6910

WRFD-020107

Overload Control

67189856

VS.PUC.High.Offset.Updt

Number of Qoffset
BSC6910
Updates Due to Heavy
Load for Cell

WRFD-020105

Potential User Control

67189857

VS.PUC.Light.Offset.Updt

Number of Qoffset
Updates Due to Light
Load for Cell

BSC6910

WRFD-020105

Potential User Control

67189858

VS.PUC.Norm.Offset.Updt

Number of Qoffset
Updates Due to
Normal Load for Cell

BSC6910

WRFD-020105

Potential User Control

67190073

VS.RRC.AttConnRel.Preempt.RNC

Number of RRC
Connection Releases
due to Preemption for
RNC

BSC6910

WRFD-010505
WRFD-010510

Queuing and PreEmption
3.4/6.8/13.6/27.2Kbps
RRC Connection and
Radio Access Bearer
Establishment and
Release

67190183

VS.IU.RelReqPS.Preempt

Number of IU
RELEASE REQUEST
Messages Sent by
RNC to CN in PS
Domain (RAB
Preempted)

BSC6910

WRFD-010505
WRFD-010510

Queuing and PreEmption
3.4/6.8/13.6/27.2Kbps
RRC Connection and
Radio Access Bearer
Establishment and
Release

67190435

VS.LCC.LDR.InterFreq

Number of UEs
Performing InterFrequency Load
Handovers in Basic
Congestion for Cell

BSC6910

WRFD-020103

Inter Frequency Load
Balance

67190436

VS.LCC.LDR.UL.BERateDown

Number of UEs
BSC6910
Performing BE Service
Downsizing in UL
Basic Congestion

WRFD-020106

Load Reshuffling

67190437

VS.LCC.LDR.DL.BERateDown

Number of UEs
BSC6910
Performing BE Service
Downsizing in DL
Basic Congestion

WRFD-020106

Load Reshuffling

67190438

VS.LCC.LDR.UL.QosReNego

Number of UEs
Performing
Uncontrollable RealTime Service QoS
Renegotiation in UL
Basic Congestion for
Cell

BSC6910

WRFD-020106

Load Reshuffling

67190439

VS.LCC.LDR.DL.QosReNego

Number of UEs
Performing
Uncontrollable RealTime Service QoS
Renegotiation in DL
Basic Congestion for
Cell

BSC6910

WRFD-020106

Load Reshuffling

67190442

VS.PUC.Light.IntSrch.Updt

Number of
Sintersearch Updates
Due to Light Load for
Cell

BSC6910

WRFD-020105

Potential User Control

67190443

VS.PUC.Norm.IntSrch.Updt

Number of
Sintersearch Updates
Due to Normal Load

BSC6910

WRFD-020105

Potential User Control

http://localhost:7890/pages/GEC0207J/02/GEC0207J/02/resources/en-us_... 6/3/2014

Load Control Feature Parameter Description

Page 136 of 143

for Cell
67190444

VS.PUC.High.IntSrch.Updt

Number of
BSC6910
Sintersearch Updates
Due to Heavy Load for
Cell

WRFD-020105

Potential User Control

67190840

VS.RAB.AbnormRel.PS.OLC

Number of PS Domain BSC6910
RABs Released Due
to Congestion for Cell

WRFD-020107

Overload Control

67190841

VS.RAB.AbnormRel.CS.OLC

Number of CS Domain BSC6910
RABs Released Due
to Congestion for Cell

WRFD-010510
WRFD-020107

3.4/6.8/13.6/27.2Kbps
RRC Connection and
Radio Access Bearer
Establishment and
Release
Overload Control

67190846

VS.CellBreath.CPICHUp

Number of Upward
CPICH Power
Adjustments Due to
Cell Breathing for Cell

BSC6910

WRFD-020104

Intra Frequency Load
Balance

67190847

VS.CellBreath.CPICHDown

Number of Downward
CPICH Power
Adjustments Due to
Cell Breathing for Cell

BSC6910

WRFD-020104

Intra Frequency Load
Balance

67191150

VS.LCC.OLC.HSDPA.UserRel

Number of HSDPA
UEs Released Due to
Overload Congestion
for Cell

BSC6910

WRFD-020107

Overload Control

67191151

VS.LCC.LDR.HSDPA.InterFreq

Number of HSDPA
UEs Performing InterFrequency Load
Handovers in Basic
Congestion for Cell

BSC6910

WRFD-020103

Inter Frequency Load
Balance

67191657

VS.RAB.SFOccupy.MAX

Maximum Number of
BSC6910
SFs that Have Been
Occupied (Let the SFs
that Have Been
Occupied a Unitary SF
of 256) for Cell

WRFD-020108

Code Resource
Management

67192134

VS.IUB.UL.Cong.Num

Number of Iub UL
Congestions

BSC6910

WRFD-020106

Load Reshuffling

67192135

VS.IUB.DL.Cong.Num

Number of Iub DL
Congestions

BSC6910

WRFD-020106

Load Reshuffling

67192397

VS.LCC.LDR.CodeAdj.Att

Number of UEs
Performing Code
Adjustment Attempts
in DL Basic
Congestion for Cell

BSC6910

WRFD-020106

Load Reshuffling

67192398

VS.LCC.LDR.MbmsPowerDec

Number of MBMS
Services Performing
Power Decreasing in
Basic Congestion for
Cell

BSC6910

WRFD-020106

Load Reshuffling

67192426

VS.LCC.LDR.AMRRateUL

Number of UEs
Performing AMR Rate
Decrease in UL Basic
Congestion for Cell

BSC6910

WRFD-020106

Load Reshuffling

67192427

VS.LCC.LDR.AMRRateDL

Number of UEs
Performing AMR Rate
Decrease in DL Basic
Congestion for Cell

BSC6910

WRFD-020106

Load Reshuffling

67192549

VS.LCC.OLC.D2C

Number of UEs
Transferring BE
Service to Common
Channel in Overload
Congestion for Cell

BSC6910

WRFD-020107

Overload Control

67192637

VS.LCC.LDR.Num.ULPower

Number of Times a
Cell Is in LDR State
Due to UL Power
Congestion for Cell

BSC6910

WRFD-020106

Load Reshuffling

67192638

VS.LCC.LDR.Num.DLPower

Number of Times a
Cell Is in LDR State
Due to DL Power
Congestion for Cell

BSC6910

WRFD-020106

Load Reshuffling

67192639

VS.LCC.LDR.Num.DLCode

Number of Times a
Cell Is in LDR State
Due to DL Code
Resource Congestion
for Cell

BSC6910

WRFD-020106

Load Reshuffling

67192640

VS.LCC.LDR.Num.ULCE

Number of Times a
Cell Is in LDR State
Due to UL CE
Resource Congestion
for Cell

BSC6910

WRFD-020106

Load Reshuffling

67192641

VS.LCC.LDR.Num.DLCE

Number of Times a
Cell Is in LDR State
Due to DL CE
Resource Congestion
for Cell

BSC6910

WRFD-020106

Load Reshuffling

http://localhost:7890/pages/GEC0207J/02/GEC0207J/02/resources/en-us_... 6/3/2014

Load Control Feature Parameter Description

Page 137 of 143

67192642

VS.LCC.LDR.Num.ULIub

Number of Times a
Cell Is in LDR State
Due to UL Iub
Transmission
Resource Congestion
for Cell

BSC6910

WRFD-020106

Load Reshuffling

67192643

VS.LCC.LDR.Num.DLIub

Number of Times a
Cell Is in LDR State
Due to DL Iub
Transmission
Resource Congestion
for Cell

BSC6910

WRFD-020106

Load Reshuffling

67192644

VS.LCC.LDR.HSUPA.InterFreq

Number of HSUPA
UEs Performing InterFrequency Load
Handovers in Basic
Congestion for Cell

BSC6910

WRFD-020103

Inter Frequency Load
Balance

67192646

VS.LCC.OLC.UL.TF

Number of UEs
BSC6910
Performing BE Service
TF Control in UL
Overload Congestion
for Cell

WRFD-020107

Overload Control

67192647

VS.LCC.OLC.UL.UserRel

Number of UEs
Released Due to UL
Overload Congestion
for Cell

BSC6910

WRFD-020107

Overload Control

67192648

VS.LCC.OLC.HSUPA.UserRel

Number of HSUPA
UEs Released during
Overload Congestion
for Cell

BSC6910

WRFD-020107

Overload Control

67192649

VS.LCC.OLC.DL.TF

Number of UEs
BSC6910
Performing BE Service
TF Control in DL
Overload Congestion
for Cell

WRFD-020107

Overload Control

67192650

VS.LCC.OLC.DL.UserRel

Number of UEs
Released Due to DL
Overload Congestion
for Cell

BSC6910

WRFD-020107

Overload Control

67192937

VS.RAC.NewCallReq.Preempt.Cong

Number of
BSC6910
Preemptions During
RAB Establishment for
Cell

WRFD-010505

Queuing and PreEmption

67192938

VS.RAC.HHO.Preempt.Cong

Number of
Preemptions During
HHO for Cell

BSC6910

WRFD-010505

Queuing and PreEmption

67192975

VS.RAB.RelReqPS.BE.HSDPA.Cong.Golden

Number of HSDPA
BSC6910
RABs Carrying Golden
Users BE Traffic
Released Due to
Congestion for Cell

WRFD-010610
WRFD-020107

HSDPA Introduction
Package
Overload Control

67192976

VS.RAB.RelReqPS.BE.HSDPA.Cong.Silver

Number of HSDPA
RABs Carrying Silver
Users BE Traffic
Released Due to
Congestion for Cell

BSC6910

WRFD-010610
WRFD-020107

HSDPA Introduction
Package
Overload Control

67192977

VS.RAB.RelReqPS.BE.HSDPA.Cong.Copper

Number of HSDPA
BSC6910
RABs Carrying Copper
Users BE Traffic
Released Due to
Congestion for Cell

WRFD-010610
WRFD-020107

HSDPA Introduction
Package
Overload Control

67192978

VS.RAB.RelReqPS.BE.HSUPA.Cong.Golden

Number of HSUPA
BSC6910
RABs Carrying Golden
Users BE Traffic
Released Due to
Congestion for Cell

WRFD-010612
WRFD-020107

HSUPA Introduction
Package
Overload Control

67192979

VS.RAB.RelReqPS.BE.HSUPA.Cong.Silver

Number of HSUPA
RABs Carrying Silver
Users BE Traffic
Released Due to
Congestion for Cell

BSC6910

WRFD-010612
WRFD-020107

HSUPA Introduction
Package
Overload Control

67192980

VS.RAB.RelReqPS.BE.HSUPA.Cong.Copper

Number of HSUPA
BSC6910
RABs Carrying Copper
Users BE Traffic
Released Due to
Congestion for Cell

WRFD-010612
WRFD-020107

HSUPA Introduction
Package
Overload Control

67193409

VS.LCC.LDR.CodeAdj.Succ

Number of UEs
BSC6910
Performing Successful
Code Adjustment in
DL Basic Congestion
for Cell

WRFD-020108

Code Resource
Management

67193410

VS.LCC.HSDPA.CodeAdj.Succ

Number of UEs
BSC6910
Performing Successful
Code Adjustment
Based on HSDPA for
Cell

WRFD-020108

Code Resource
Management

67193709

VS.HHO.AttInterCellLB.MultiRL

Number of Outgoing
Inter-Frequency Hard
Handover Attempts

WRFD-020103

Inter Frequency Load
Balance

BSC6910

http://localhost:7890/pages/GEC0207J/02/GEC0207J/02/resources/en-us_... 6/3/2014

Load Control Feature Parameter Description

Page 138 of 143

Due to Load Balancing
for Cell (Multiple RLs)
67193710

VS.HHO.SuccInterCellLB.MultiRL

Number of Successful
Outgoing InterFrequency Hard
Handovers Due to
Load Balancing for
Cell (Multiple RLs)

BSC6910

WRFD-020103

Inter Frequency Load
Balance

67194970

VS.LCC.OLC.MBMS.PTM.RBRel

Number of MBMS
BSC6910
PTM Service Releases
in Overload
Congestion for Cell

WRFD-020107

Overload Control

67194971

VS.LCC.OLC.MBMS.PTP.RBRel

Number of MBMS PTP BSC6910
Service Releases in
Overload Congestion
for Cell

WRFD-020107

Overload Control

67195992

VS.LCC.HSDPA.CodeAdj.Att

Number of UEs
Performing Code
Adjustment Based on
HSDPA for Cell

BSC6910

WRFD-020108

Code Resource
Management

67196031

VS.RRC.Rej.Redir.Service

Number of RRC
Connection Rejects
Due to Service-based
RRC Redirection for
Cell

BSC6910

WRFD-020120
WRFD-010510

Service Steering and
Load Sharing in RRC
Connection Setup
3.4/6.8/13.6/27.2Kbps
RRC Connection and
Radio Access Bearer
Establishment and
Release

67196293

VS.DRD.IFREQ.CS.MBDR.RBSetup.AttOut

Number of CS Voice
Directed Retry
Attempts Based on
Inter-Frequency
Measurement for Cell

BSC6910

WRFD-020103
WRFD-020402

Inter Frequency Load
Balance
Measurement Based
Direct Retry

67196294

VS.DRD.IFREQ.CS.MBDR.RBSetup.SuccOut

Number of Successful
CS Voice Directed
Retry Based on InterFrequency
Measurement for Cell

BSC6910

WRFD-020103
WRFD-020402

Inter Frequency Load
Balance
Measurement Based
Direct Retry

67196295

VS.DRD.IFREQ.PS.MBDR.R99.RBSetup.AttOut

Number of PS R99
Directed Retry
Attempts Based on
Inter-Frequency
Measurement for Cell

BSC6910

WRFD-020103
WRFD-020402

Inter Frequency Load
Balance
Measurement Based
Direct Retry

67196296

VS.DRD.IFREQ.PS.MBDR.R99.RBSetup.SuccOut

Number of Successful BSC6910
PS R99 Directed Retry
Based on InterFrequency
Measurement for Cell

WRFD-020103
WRFD-020402

Inter Frequency Load
Balance
Measurement Based
Direct Retry

67196297

VS.DRD.IFREQ.PS.MBDR.HResCong.RBSetup.AttOut

Number of HSDPA PS BSC6910
Directed Retry
Attempts Based on
Inter-Frequency
Measurement for Cell

WRFD-020103
WRFD-020402

Inter Frequency Load
Balance
Measurement Based
Direct Retry

67196298

VS.DRD.IFREQ.PS.MBDR.HResCong.RBSetup.SuccOut Number of Successful
HSDPA PS Directed
Retry Based on InterFrequency
Measurement for Cell

BSC6910

WRFD-020103
WRFD-020402

Inter Frequency Load
Balance
Measurement Based
Direct Retry

67199617

VS.MeanRTWP

Mean Power of Totally BSC6910
Received Bandwidth
for Cell

WRFD-020102

Load Measurement

67199618

VS.MeanTCP

Mean Transmitted
Power of Carrier for
Cell

BSC6910

WRFD-020102

Load Measurement

67199680

VS.MaxRTWP

Maximum Power of
Totally Received
Bandwidth for Cell

BSC6910

WRFD-020102

Load Measurement

67199681

VS.MinRTWP

Minimum Power of
Totally Received
Bandwidth for Cell

BSC6910

WRFD-020102

Load Measurement

67199682

VS.MaxTCP

Maximum Transmitted
Power of Carrier for
Cell

BSC6910

WRFD-020102

Load Measurement

67199683

VS.MinTCP

Minimum Transmitted
Power of Carrier for
Cell

BSC6910

WRFD-020102

Load Measurement

67199691

VS.MultRAB.SF8

Number of multi-RAB
UEs that Occupy the
DL R99 Codes with
the Spreading Factor
(SF) of 8 for Cell

BSC6910

WRFD-020108

Code Resource
Management

67199692

VS.MultRAB.SF16

Number of multi-RAB
UEs that Occupy the
DL R99 Codes with
the Spreading Factor
(SF) of 16 for Cell

BSC6910

WRFD-020108

Code Resource
Management

67199693

VS.MultRAB.SF32

Number of multi-RAB
UEs that Occupy the

BSC6910

WRFD-020108

Code Resource
Management

http://localhost:7890/pages/GEC0207J/02/GEC0207J/02/resources/en-us_... 6/3/2014

Load Control Feature Parameter Description

Page 139 of 143

DL R99 Codes with
the Spreading Factor
(SF) of 32 for Cell
67199694

VS.MultRAB.SF64

Number of multi-RAB
UEs that Occupy the
DL R99 Codes with
the Spreading Factor
(SF) of 64 for Cell

BSC6910

WRFD-020108

Code Resource
Management

67199698

VS.SingleRAB.SF4

Number of single-RAB
UEs that Occupy the
DL R99 Codes with
Spreading Factor (SF)
of 4 for Cell

BSC6910

WRFD-020108

Code Resource
Management

67199699

VS.SingleRAB.SF8

Number of single-RAB
UEs that Occupy the
DL R99 Codes with
Spreading Factor (SF)
of 8 for Cell

BSC6910

WRFD-020108

Code Resource
Management

67199700

VS.SingleRAB.SF16

Number of single-RAB
UEs that Occupy the
DL R99 Codes with
Spreading Factor (SF)
of 16 for Cell

BSC6910

WRFD-020108

Code Resource
Management

67199701

VS.SingleRAB.SF32

Number of single-RAB
UEs that Occupy the
DL R99 Codes with
Spreading Factor (SF)
of 32 for Cell

BSC6910

WRFD-020108

Code Resource
Management

67199702

VS.SingleRAB.SF64

Number of single-RAB
UEs that Occupy the
DL R99 Codes with
Spreading Factor (SF)
of 64 for Cell

BSC6910

WRFD-020108

Code Resource
Management

67199703

VS.SingleRAB.SF128

Number of single-RAB
UEs that Occupy the
DL R99 Codes with
Spreading Factor (SF)
of 128 for Cell

BSC6910

WRFD-020108

Code Resource
Management

67199704

VS.SingleRAB.SF256

Number of single-RAB
UEs that Occupy the
DL R99 Codes with
Spreading Factor (SF)
of 256 for Cell

BSC6910

WRFD-020108

Code Resource
Management

67202900

VS.MaxTCP.NonHS

Maximum NonHSDPA Transmitted
Carrier Power for Cell

BSC6910

WRFD-020102

Load Measurement

67202901

VS.MinTCP.NonHS

Minimum Non-HSDPA
Transmitted Carrier
Power for Cell

BSC6910

WRFD-020102

Load Measurement

67202902

VS.MeanTCP.NonHS

Mean Non-HSDPA
Transmitted Carrier
Power for Cell

BSC6910

WRFD-020102

Load Measurement

67202917

VS.CellBreath.CPICHMin.Time

Duration of Minimum
Values of CPICH
Power Due to Cell
Breathing for Cell

BSC6910

WRFD-020104

Intra Frequency Load
Balance

67202918

VS.CellBreath.CPICHMax.Time

Duration of Maximum
Values of CPICH
Power Due to Cell
Breathing for Cell

BSC6910

WRFD-020104

Intra Frequency Load
Balance

67202919

VS.CellBreath.TCPUnder.Time

Duration of TCP
Smaller Than Cell
Breathing Lower
Threshold for Cell

BSC6910

WRFD-020104

Intra Frequency Load
Balance

67202920

VS.CellBreath.TCPOver.Time

Duration of TCP
Greater Than Cell
Breathing Upper
Threshold for Cell

BSC6910

WRFD-020104

Intra Frequency Load
Balance

67202942

VS.MultRAB.SF4

Number of multi-RAB
UEs that Occupy the
DL R99 Codes with
the Spreading Factor
(SF) of 4 for Cell

BSC6910

WRFD-020108

Code Resource
Management

67202943

VS.MultRAB.SF128

Number of multi-RAB
UEs that Occupy the
DL R99 Codes with
the Spreading Factor
(SF) of 128 for Cell

BSC6910

WRFD-020108

Code Resource
Management

67202944

VS.MultRAB.SF256

Number of multi-RAB
UEs that Occupy the
DL R99 Codes with
the Spreading Factor
(SF) of 256 for Cell

BSC6910

WRFD-020108

Code Resource
Management

67202982

VS.HSDPA.MaxRequiredPwr

Maximum Power
Required by HSDSCH for Cell

BSC6910

WRFD-020102

Load Measurement

67202983

VS.HSDPA.MinRequiredPwr

Minimum Power
Required by HS-

BSC6910

WRFD-020102

Load Measurement

http://localhost:7890/pages/GEC0207J/02/GEC0207J/02/resources/en-us_... 6/3/2014

Load Control Feature Parameter Description

Page 140 of 143

DSCH for Cell
67202984

VS.HSDPA.MeanRequiredPwr

Mean Power Required
by HS-DSCH for Cell

BSC6910

WRFD-020102

Load Measurement

67203402

VS.LCC.OLC.UL.Time

Duration of UL
Overload Congestion
for Cell

BSC6910

WRFD-020107

Overload Control

67203403

VS.LCC.OLC.DL.Time

Duration of DL
Overload Congestion
for Cell

BSC6910

WRFD-020107

Overload Control

67203416

VS.RAB.SFOccupy

Mean Number of SFs BSC6910
that Have Been
Occupied (Let the SFs
that Have Been
Occupied a Unitary SF
of 256) for Cell

WRFD-020108

Code Resource
Management

67203854

VS.IUB.UL.Cong.Time

Duration of Iub UL
Congestion

BSC6910

WRFD-020106

Load Reshuffling

67203855

VS.IUB.DL.Cong.Time

Duration of Iub DL
Congestion

BSC6910

WRFD-020106

Load Reshuffling

67203991

VS.LCC.LDR.Time.ULPower

Duration of Cell in
LDR State Due to UL
Power Congestion for
Cell

BSC6910

WRFD-020106

Load Reshuffling

67203992

VS.LCC.LDR.Time.DLPower

Duration of Cell in
LDR State Due to DL
Power Congestion for
Cell

BSC6910

WRFD-020106

Load Reshuffling

67203993

VS.LCC.LDR.Time.DLCode

Duration of Cell in
LDR State Due to DL
Code Resource
Congestion for Cell

BSC6910

WRFD-020106

Load Reshuffling

67203994

VS.LCC.LDR.Time.ULCE

Duration of Cell in
LDR State Due to UL
CE Resource
Congestion

BSC6910

WRFD-020106

Load Reshuffling

67203995

VS.LCC.LDR.Time.DLCE

Duration of Cell in
LDR State Due to DL
CE Resource
Congestion

BSC6910

WRFD-020106

Load Reshuffling

67203996

VS.LCC.LDR.Time.ULIub

Duration of Cell in
LDR State Due to UL
Iub Transmission
Resource Congestion
for Cell

BSC6910

WRFD-020106

Load Reshuffling

67203997

VS.LCC.LDR.Time.DLIub

Duration of Cell in
LDR State Due to DL
Iub Transmission
Resource Congestion
for Cell

BSC6910

WRFD-020106

Load Reshuffling

73393916

VS.RAB.AttEstabCS.Queue

Number of Queuing
Attempts Due to
Insufficient Resource
in the CS RAB
Assignment
Establishment
Procedure for Cell

BSC6910

WRFD-010505

Queuing and PreEmption

73393917

VS.RAB.AttEstabPS.Queue

Number of Queuing
Attempts Due to
Insufficient Resource
in the PS RAB
Assignment
Establishment
Procedure for Cell

BSC6910

WRFD-010505

Queuing and PreEmption

73393918

VS.RAB.Estab.QueueTime.CS

Average Duration of a
CS Queuing in the
RAB Establishment
Procedure for Cell

BSC6910

WRFD-010505

Queuing and PreEmption

73393919

VS.RAB.Estab.QueueTime.PS

Average Duration of a
PS Queuing in the
RAB Establishment
Procedure for Cell

BSC6910

WRFD-010505

Queuing and PreEmption

73393920

VS.RAB.SuccEstabCS.Queue

Number of Successful
CS Establishment
After Queuing for Cell

BSC6910

WRFD-010505

Queuing and PreEmption

73393921

VS.RAB.SuccEstabPS.Queue

Number of Successful
PS Establishment
After Queuing for Cell

BSC6910

WRFD-010505

Queuing and PreEmption

73393939

VS.HHO.AttInterFreqOut.CS.TotalTxPwr

Number of CS InterFrequency Hard
Handover Attempts
Based on Cell Total
Transmit Power for
Cell

BSC6910

WRFD-020106
WRFD-140217

Load Reshuffling
Inter-Frequency Load
Balancing Based on
Configurable Load
Threshold

73393940

VS.HHO.AttInterFreqOut.PS.TotalTxPwr

Number of PS InterFrequency Hard
Handover Attempts
Based on Cell Total

BSC6910

WRFD-020106
WRFD-140217

Load Reshuffling
Inter-Frequency Load
Balancing Based on
Configurable Load

http://localhost:7890/pages/GEC0207J/02/GEC0207J/02/resources/en-us_... 6/3/2014

Load Control Feature Parameter Description

Page 141 of 143

Transmit Power for
Cell

Threshold

73393941

VS.HHO.AttInterFreqOut.CS.TotalRxPwr

Number of CS InterBSC6910
Frequency Hard
Handover Attempts
Based on Cell Total
Receive Power for Cell

WRFD-020106
WRFD-140217

Load Reshuffling
Inter-Frequency Load
Balancing Based on
Configurable Load
Threshold

73393942

VS.HHO.AttInterFreqOut.PS.TotalRxPwr

Number of PS InterBSC6910
Frequency Hard
Handover Attempts
Based on Cell Total
Receive Power for Cell

WRFD-020106
WRFD-140217

Load Reshuffling
Inter-Frequency Load
Balancing Based on
Configurable Load
Threshold

73393943

VS.HHO.AttInterFreqOut.CS.Code

Number of CS InterFrequency Hard
Handover Attempts
Based on Code
Resources for Cell

BSC6910

WRFD-020106
WRFD-140217

Load Reshuffling
Inter-Frequency Load
Balancing Based on
Configurable Load
Threshold

73393944

VS.HHO.AttInterFreqOut.PS.Code

Number of PS InterFrequency Hard
Handover Attempts
Based on Code
Resources for Cell

BSC6910

WRFD-020106
WRFD-140217

Load Reshuffling
Inter-Frequency Load
Balancing Based on
Configurable Load
Threshold

73393950

VS.HHO.SuccInterFreqOut.CS.TotalTxPwr

Number of Successful
CS Inter-Frequency
Hard Handovers
Based on Cell Total
Transmit Power for
Cell

BSC6910

WRFD-020106
WRFD-140217

Load Reshuffling
Inter-Frequency Load
Balancing Based on
Configurable Load
Threshold

73393951

VS.HHO.SuccInterFreqOut.PS.TotalTxPwr

Number of Successful
PS Inter-Frequency
Hard Handovers
Based on Cell Total
Transmit Power for
Cell

BSC6910

WRFD-020106
WRFD-140217

Load Reshuffling
Inter-Frequency Load
Balancing Based on
Configurable Load
Threshold

73393952

VS.HHO.SuccInterFreqOut.CS.TotalRxPwr

Number of Successful BSC6910
CS Inter-Frequency
Hard Handovers
Based on Cell Total
Receive Power for Cell

WRFD-020106
WRFD-140217

Load Reshuffling
Inter-Frequency Load
Balancing Based on
Configurable Load
Threshold

73393953

VS.HHO.SuccInterFreqOut.PS.TotalRxPwr

Number of Successful BSC6910
PS Inter-Frequency
Hard Handovers
Based on Cell Total
Receive Power for Cell

WRFD-020106
WRFD-140217

Load Reshuffling
Inter-Frequency Load
Balancing Based on
Configurable Load
Threshold

73393954

VS.HHO.SuccInterFreqOut.CS.Code

Number of Successful
CS Inter-Frequency
Hard Handovers
Based on Code
Resources for Cell

BSC6910

WRFD-020106
WRFD-140217

Load Reshuffling
Inter-Frequency Load
Balancing Based on
Configurable Load
Threshold

73393955

VS.HHO.SuccInterFreqOut.PS.Code

Number of Successful
PS Inter-Frequency
Hard Handovers
Based on Code
Resources for Cell

BSC6910

WRFD-020106
WRFD-140217

Load Reshuffling
Inter-Frequency Load
Balancing Based on
Configurable Load
Threshold

73394053

VS.DRD.PhyRecfg.AttOut

Number of Outgoing
BSC6910
DRD Attempts through
Physical Channel
Reconfiguration for
Cell

WRFD-020103
WRFD-02040001

Inter Frequency Load
Balance
Intra System Direct
Retry

73394054

VS.DRD.PhyRecfg.SuccOut

Number of Successful
Outgoing DRDs
through Physical
Channel
Reconfiguration for
Cell

BSC6910

WRFD-020103
WRFD-02040001

Inter Frequency Load
Balance
Intra System Direct
Retry

73394055

VS.DRD.PhyRecfg.AttIn

Number of Incoming
BSC6910
DRD Attempts through
Physical Channel
Reconfiguration for
Cell

WRFD-020103
WRFD-02040001

Inter Frequency Load
Balance
Intra System Direct
Retry

73394056

VS.DRD.PhyRecfg.SuccIn

Number of Successful
Incoming DRDs
through Physical
Channel
Reconfiguration for
Cell

BSC6910

WRFD-020103
WRFD-02040001

Inter Frequency Load
Balance
Intra System Direct
Retry

73403758

VS.HSUPA.MaxRSEPS

Maximum Received
Scheduled E-DCH
Power Share for Cell

BSC6910

WRFD-020102

Load Measurement

73403760

VS.HSUPA.MinRSEPS

Minimum Received
Scheduled E-DCH
Power Share for Cell

BSC6910

WRFD-020102

Load Measurement

73415859

VS.HSUPA.MeanRSEPS

Average Received
Scheduled E-DCH
Power Share for Cell

BSC6910

WRFD-020102

Load Measurement

73421493

VS.RRC.Rej.Redir.Dist

Number of DistanceBased RRC
Redirections for Cell

BSC6910

WRFD-02040003
WRFD-02040005
WRFD-020401

Inter System Redirect
Inter-Frequency
Redirection Based on

http://localhost:7890/pages/GEC0207J/02/GEC0207J/02/resources/en-us_... 6/3/2014

Load Control Feature Parameter Description

Page 142 of 143

Distance
Inter-RAT Redirection
Based on Distance
73423313

VS.ULB.CPICH.AdjustNum

Number of CPICH
Power Adjustments
Based on RTWP for
Cell

BSC6910

WRFD-020104

Intra Frequency Load
Balance

73423948

VS.BackGroundNoise.Update

Number of Automatic
Uplink Background
Noise Updates in a
Cell

BSC6910

WRFD-020102

Load Measurement

73424203

VS.HHO.AttInterFreqOut.PS.UlCE

Number of PS InterFrequency Hard
Handover Attempts
Based on UL CE for
Cell

BSC6910

WRFD-020106
WRFD-140217

Load Reshuffling
Inter-Frequency Load
Balancing Based on
Configurable Load
Threshold

73424204

VS.HHO.SuccInterFreqOut.PS.UlCE

Number of Successful
PS Inter-Frequency
Hard Handovers
Based on UL CE for
Cell

BSC6910

WRFD-020106
WRFD-140217

Load Reshuffling
Inter-Frequency Load
Balancing Based on
Configurable Load
Threshold

73424243

VS.HHO.AttInterFreqOut.PS.DlCE

Number of PS InterFrequency Hard
Handover Attempts
Based on DL CE for
Cell

BSC6910

WRFD-140217

Inter-Frequency Load
Balancing Based on
Configurable Load
Threshold

73424244

VS.HHO.SuccInterFreqOut.PS.DlCE

Number of Successful
PS Inter-Frequency
Hard Handovers
Based on DL CE for
Cell

BSC6910

WRFD-140217

Inter-Frequency Load
Balancing Based on
Configurable Load
Threshold

73424245

VS.HHO.AttInterFreqOut.CS.DlCE

Number of CS InterFrequency Hard
Handover Attempts
Based on DL CE for
Cell

BSC6910

WRFD-140217

Inter-Frequency Load
Balancing Based on
Configurable Load
Threshold

73424246

VS.HHO.AttInterFreqOut.CS.UlCE

Number of CS InterFrequency Hard
Handover Attempts
Based on UL CE for
Cell

BSC6910

WRFD-140217

Inter-Frequency Load
Balancing Based on
Configurable Load
Threshold

73424247

VS.HHO.SuccInterFreqOut.CS.UlCE

Number of Successful
CS Inter-Frequency
Hard Handovers
Based on UL CE for
Cell

BSC6910

WRFD-140217

Inter-Frequency Load
Balancing Based on
Configurable Load
Threshold

73424248

VS.HHO.SuccInterFreqOut.CS.DlCE

Number of Successful
CS Inter-Frequency
Hard Handovers
Based on DL CE for
Cell

BSC6910

WRFD-140217

Inter-Frequency Load
Balancing Based on
Configurable Load
Threshold

73424787

VS.MaxULActualPowerLoad

Max Uplink Actual Cell BSC6910
Load

WRFD-020102

Load Measurement

73424788

VS.MinULActualPowerLoad

Min Uplink Actual Cell
Load

BSC6910

WRFD-020102

Load Measurement

73424972

VS.RRC.Rej.Redir.Dist.IntraRat

Number of DistanceBased RRC Interfrequency
Redirections for Cell

BSC6910

WRFD-02040005

Inter-Frequency
Redirection Based on
Distance

73441123

VS.ULB.CPICHMin.Time

Duration of PCPICH
BSC6910
Power Under Minimum
RTWP Threshold

WRFD-020104

Intra Frequency Load
Balance

73441143

VS.HSDPA.MaxRequiredPwr.Free

Maximum Power
Required for Free
HSDPA Users for Cell

BSC6910

WRFD-020102

Load Measurement

73441144

VS.HSDPA.MeanRequiredPwr.Free

Average Power
Required for Free
HSDPA Users for Cell

BSC6910

WRFD-020102

Load Measurement

73441212

VS.BackGroundNoise.Mean

Average Uplink
BSC6910
Background Noise in a
Cell

WRFD-020102

Load Measurement

73441215

VS.BackGroundNoise.Max

Maximum Uplink
BSC6910
Background Noise in a
Cell

WRFD-020102

Load Measurement

73441246

VS.LCC.CLB.CS.InterFreq

Number of CS UEs
Involved in InterFrequency Loadbased Handovers in a
CS CLB Cell

BSC6910

WRFD-140217

Inter-Frequency Load
Balancing Based on
Configurable Load
Threshold

73441247

VS.LCC.CLB.PS.InterFreq

Number of PS UEs
Involved in InterFrequency Loadbased Handovers in a
PS CLB Cell

BSC6910

WRFD-140217

Inter-Frequency Load
Balancing Based on
Configurable Load
Threshold

73441505

VS.MeanULActualPowerLoad

Mean Uplink Actual
Cell Load

BSC6910

WRFD-020102

Load Measurement

http://localhost:7890/pages/GEC0207J/02/GEC0207J/02/resources/en-us_... 6/3/2014

Load Control Feature Parameter Description

Page 143 of 143

11 Glossary
For the acronyms, abbreviations, terms, and definitions, see Glossary.

12 Reference Documents
1. 3GPP TS 25.133: Requirements for Support of Radio Resource Management (FDD)
2. 3GPP TS 25.215: Physical layer - Measurements (FDD)
3. 3GPP TS 25.321: Medium Access Control (MAC) protocol specification
4. 3GPP TS 25.331: Radio Resource Control (RRC)
5. 3GPP TS 25.413: UTRAN Iu Interface RANAP Signaling
6. DCCC Feature Parameter Description
7. AMR Feature Parameter Description
8. MBMS Feature Parameter Description
9. HSDPA Feature Parameter Description
10. HSUPA Feature Parameter Description
11. Transmission Resource Management Feature Parameter Description
12. Handover Feature Parameter Description

http://localhost:7890/pages/GEC0207J/02/GEC0207J/02/resources/en-us_... 6/3/2014

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