automatic congestion handler(ran16.0_01)

WCDMA RAN

Automatic Congestion HandlerFeature Parameter Description

Issue 01

Date 2014-04-30

HUAWEI TECHNOLOGIES CO., LTD.

Copyright © Huawei Technologies Co., Ltd. 2014. All rights reserved.

No part of this document may be reproduced or transmitted in any form or by any means without prior writtenconsent 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. NoticeThe purchased products, services and features are stipulated by the contract made between Huawei and thecustomer. All or part of the products, services and features described in this document may not be within thepurchase 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 representationsof any kind, either express or implied.

The information in this document is subject to change without notice. Every effort has been made in thepreparation of this document to ensure accuracy of the contents, but all statements, information, andrecommendations in this document do not constitute a warranty of any kind, express or implied.

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Website: http://www.huawei.com

Email: [email protected]

Issue 01 (2014-04-30) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.

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mailto:[email protected]

Contents

1 About This Document..................................................................................................................11.1 Scope..............................................................................................................................................................................11.2 Intended Audience..........................................................................................................................................................11.3 Change History...............................................................................................................................................................11.4 Differences Between Base Station Types.......................................................................................................................3

2 Overview.........................................................................................................................................42.1 Background.....................................................................................................................................................................42.2 Introduction....................................................................................................................................................................42.3 Benefits...........................................................................................................................................................................4

3 Technical Description...................................................................................................................53.1 Introduction....................................................................................................................................................................53.2 Principles........................................................................................................................................................................53.2.1 Decision Conditions for Different Congestion States.................................................................................................63.2.2 Automatic Congestion Relief Actions.......................................................................................................................11

4 Related Features...........................................................................................................................17

5 Network Impact...........................................................................................................................18

6 Engineering Guidelines.............................................................................................................216.1 When to Use Automatic Congestion Handler..............................................................................................................216.2 Required Information...................................................................................................................................................216.3 Network Planning.........................................................................................................................................................286.4 Deployment..................................................................................................................................................................286.4.1 Requirements.............................................................................................................................................................286.4.2 Data Preparation........................................................................................................................................................296.4.3 Precautions.................................................................................................................................................................356.4.4 Hardware Adjustment................................................................................................................................................356.4.5 Activation..................................................................................................................................................................356.4.6 Activation Observation..............................................................................................................................................406.4.7 Deactivation...............................................................................................................................................................406.4.8 Reconfiguration.........................................................................................................................................................416.5 Performance Monitoring...............................................................................................................................................42

WCDMA RANAutomatic Congestion Handler Feature ParameterDescription Contents


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6.6 Parameter Optimization................................................................................................................................................436.7 Troubleshooting............................................................................................................................................................43

7 Parameters.....................................................................................................................................44

8 Counters........................................................................................................................................96

9 Glossary.........................................................................................................................................97

10 Reference Documents...............................................................................................................98

WCDMA RANAutomatic Congestion Handler Feature ParameterDescription Contents


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1 About This Document

1.1 ScopeThis document describes the WRFD-160253 Automatic Congestion Handler feature, includingthe working principles, related features, network impact, and engineering guidelines.

This document applies to the following NE types.

NE Type NE Model

RNC BSC6900, BSC6910

NodeB Macro 3900 series macro base stations: BTS3900, BTS3900A,BTS3900L, BTS3900AL, DBS3900, BTS3900C3800 series macro base stations: DBS3800, BTS3812E,BTS3812AE

Micro BTS3803E, BTS3902E

LampSite DBS3900 LampSite

1.2 Intended AudienceThis document is intended for personnel who:

l Need to understand the features described herein

l Work with Huawei products

1.3 Change HistoryThis section provides information about the changes in different document versions. There aretwo types of changes, which are defined as follows:

WCDMA RANAutomatic Congestion Handler Feature ParameterDescription 1 About This Document


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l Feature change

Changes in features of a specific product version

l Editorial change

Changes in wording or addition of information that was not described in the earlier version

RAN16.0 01 (2014-04-30)

This issue includes the following changes.

ChangeType

Change Description ParameterChange

Featurechange

l Added the description of ROT, RTWP and number of userson the DCH. For details, see sections 3.2.1 DecisionConditions for Different Congestion States, 3.2.2Automatic Congestion Relief Actions, 6.2 RequiredInformation, 6.4.2 Data Preparation, and 6.4.5Activation.

l Modified the prerequisite features. For details, see section4 Related Features.

l Modified the system capacity impact and networkperformance impact. For details, see section 5 NetworkImpact.

l Modified the license. For details, see section 6.4.1Requirements.

None

Editorialchange

None None

RAN16.0 Draft A (2014-01-20)

This issue includes the following changes.

ChangeType

Change Description ParameterChange

Featurechange

None None

Editorialchange

Added the descriptions about the feature and functiondifferences between the various types of NodeBs. For details,see section 1.4 Differences Between Base Station Types.

None

RAN16.0 Draft A(2014-01-20)

This document is created for RAN16.0.



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1.4 Differences Between Base Station Types

Feature Support by Macro, Micro, and LampSite Base Stations

FeatureID

Description

Supported byController(Y/N/NA)

Supported byMacro(Y/N/NA)

Supported by Micro(Y/N/NA)

LampSite

BSC6900

BSC6910

BTS3803E

BTS3902E

WRFD-160253

AutomaticCongestionHandler

Y Y Y Y Y Y

NOTE

Y indicates that a feature is supported; N indicates that a feature is not supported; NA indicates that an NE isnot involved, that is, a feature does not require the support of the NE.

The features described in this document are implemented in the same way on macro, micro, andLampSite base stations.



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2 Overview

2.1 BackgroundSpecial events, such as festivals, parades, or major demonstrations, often result in unpredictablenetwork congestion depending on crowd levels and community participation. In this case,network configuration optimization cannot be performed in advance. With AutomaticCongestion Handler, congestion relief can be performed automatically in these scenarios.

2.2 IntroductionAutomatic Congestion Handler monitors network congestion in real time. If network congestionoccurs, this feature automatically performs corresponding congestion relief actions based on thecongestion state. This relieves network congestion.

2.3 BenefitsThis feature automatically relieves congestion in scenarios where special events result inunanticipated crowd levels, thereby reducing the operation and maintenance workload. Thisimproves system stability and performance.

WCDMA RANAutomatic Congestion Handler Feature ParameterDescription 2 Overview


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3 Technical Description

3.1 IntroductionThis feature monitors load-related measurement quantities for a cell in real time. If ameasurement quantity or a set of measurement quantities meets certain requirements, the RNCdetermines that the cell is congested and performs corresponding congestion relief actions, whichcan be implemented by activating existing congestion relief algorithms or adjusting the settingsof existing network configuration parameters.

3.2 PrinciplesWhen the automatic congestion control switch (ADAP_CELL_CONGEST_SWITCH underthe AdapAlgoSwitch(BSC6900,BSC6910) parameter) is set to on, the RNC determines thecongestion state of a cell based on measurement quantities such as downlink non-HSPA powerload, actual uplink load, number of users on the DCH, and number of users on the FACH.

After determining the congestion state, the RNC performs corresponding congestion reliefactions to improve the cell performance. Figure 3-1 outlines the mapping between congestionstates and congestion relief actions.

Figure 3-1 Mapping between congestion states and congestion relief actions

WCDMA RANAutomatic Congestion Handler Feature ParameterDescription 3 Technical Description


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NOTE

The preceding figure shows only the working principle of the automatic congestion control algorithm. Fordetails about how to determine the congestion states in actual conditions, see section 3.2.1 DecisionConditions for Different Congestion States.

3.2.1 Decision Conditions for Different Congestion StatesThe RNC determines the load state of a cell based on the following measurement objects:

l Downlink power load of a cell: This measurement object includes the downlink non-HSPApower load. For details about the downlink non-HSPA power load, see Load MeasurementFeature Parameter Description.

l Uplink power load of a cell: This measurement object includes the actual uplink load, uplinkrise over thermal (RoT) or received total wideband power (RTWP) and number of userson the DCH.

NOTE

If the actual uplink load cannot be obtained, the uplink RoT is used instead. For details about theactual uplink load, see Load Measurement Feature Parameter Description.

l FACH of a cell: The state of the DTCH carried over the FACH determines whether theFACH of a cell is congested.

l Number of users on the FACH: This is determined based on the number of users in theCELL_FACH state.

Table 3-1 describes the decision conditions for each measurement object.

Table 3-1 Decision conditions for each measurement object

MeasurementObject

Congestion State

Number ofusers on theDCH

Congestion statel When the number of users on the DCH is greater than or equal to the

congestion triggering threshold, the number of users on the DCHenters the congestion state.

l When the number of users on the DCH is less than or equal to thecongestion release threshold, the number of users on the DCH exitsthe congestion state.

NOTEThe congestion triggering and release thresholds for the number of users on theDCH are 35 and 25, respectively.

Normal stateWhen the number of users on the DCH is greater than or equal to thenormal state threshold for the number of users on the DCH, the numberof users on the DCH enters the normal state.NOTE

The default value of the normal state threshold for the number of users on the DCHis 25.



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MeasurementObject

Congestion State

Light-load statel When the number of users on the DCH is greater than or equal to the

light-load state triggering threshold, the number of users on the DCHenters the light-load state.

l When the number of users on the DCH is less than or equal to the light-load state release threshold, the number of users on the DCH exits thelight-load state.

NOTEThe light-load state triggering and release thresholds for the number of users on theDCH are 20 and 10, respectively.

Downlinkpower loadof a cell

Second-level congestion statel When the downlink non-HSPA power load is greater than or equal to

the second-level congestion triggering threshold for the downlink non-HSPA power load, the downlink power load of the cell enters thesecond-level congestion state.

l When the downlink non-HSPA power load is less than or equal to thesecond-level congestion release threshold for the downlink non-HSPApower load, the downlink power load of the cell exits the second-levelcongestion state.

NOTE

l The second-level congestion triggering threshold for the downlink non-HSPApower load is greater than the second-level congestion release threshold for thedownlink non-HSPA power load.

l By default, the downlink non-HSPA power of a cell entering the second-levelcongestion state is considered severely congested and the downlink non-HSPApower of a cell exiting the second-level congestion state is considered lightlycongested. For the definitions of severely and lightly congestion states of thedownlink non-HSPA power, see Load Measurement Feature ParameterDescription.



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MeasurementObject

Congestion State

First-level congestion statel When the downlink non-HSPA power load is greater than or equal to

the first-level congestion triggering threshold for the downlink non-HSPA power load, the downlink power load of the cell enters the first-level congestion state.

l When the downlink non-HSPA power load is less than or equal to thefirst-level congestion release threshold for the downlink non-HSPApower load, the downlink power load of the cell exits the first-levelcongestion state.

NOTE

l The first-level congestion triggering threshold for the downlink non-HSPApower load is greater than the first-level congestion release threshold for thedownlink non-HSPA power load.

l By default, the downlink non-HSPA power of a cell entering the first-levelcongestion state is considered lightly congested and the downlink non-HSPApower of a cell exiting the first-level congestion state is considered normal. Forthe definition of the normal load state of the downlink non-HSPA power, seeLoad Measurement Feature Parameter Description.

Normal stateWhen the downlink non-HSPA power load is greater than or equal to thenormal state threshold for the downlink non-HSPA power load, thedownlink power load of the cell enters the normal state.NOTE

The default value of the normal state threshold for the downlink non-HSPA powerload is DL_NORMAL_STATE.



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MeasurementObject

Congestion State

Uplinkpower loadof a cell

Congestion state (actual uplink load)l When the actual uplink load is greater than or equal to the congestion

triggering threshold for the actual uplink load and the number of userson the DCH is greater than or equal to the congestion triggeringthreshold for the number of users on the DCH, the uplink power loadof the cell (actual uplink load) enters the congestion state.

l When the actual uplink load is less than or equal to the congestionrelease threshold for the actual uplink load and the number of users onthe DCH is less than or equal to the congestion release threshold forthe number of users on the DCH, the uplink power load of the cell(actual uplink load) exits the congestion state.

Congestion state (RoT)l When the uplink RoT is greater than or equal to the congestion

triggering threshold for the uplink RoT and the number of users on theDCH is greater than or equal to the congestion triggering threshold forthe number of users on the DCH, the uplink power load of the cell(RoT) enters the congestion state.

l When the uplink RoT is less than or equal to the congestion releasethreshold for the uplink RoT and the number of users on the DCH isless than or equal to the congestion release threshold for the numberof users on the DCH, the uplink power load of the cell (RoT) exits thecongestion state.

Congestion state (RTWP)l When the uplink RTWP is greater than or equal to the congestion

triggering threshold for the uplink RTWP and the number of users onthe DCH is greater than or equal to the congestion triggering thresholdfor the number of users on the DCH, the uplink power load of the cell(RTWP) enters the congestion state.

l When the uplink RTWP is less than or equal to the congestion releasethreshold for the uplink RTWP and the number of users on the DCHis less than or equal to the congestion release threshold for the numberof users on the DCH, the uplink power load of the cell (RTWP) exitsthe congestion state.



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MeasurementObject

Congestion State

NOTE

l The congestion triggering threshold for the actual uplink load is greater thanthe congestion release threshold for the actual uplink load.

l The congestion triggering threshold for the uplink RoT is greater than thecongestion release threshold for the uplink RoT.

l The congestion triggering threshold for the uplink RTWP is greater than thecongestion release threshold for the uplink RTWP.

l The congestion triggering threshold for the number of users on the DCH isgreater than the congestion release threshold for the number of users on theDCH.

l The congestion triggering and release thresholds for the actual uplink load are7 dB and 4 dB, respectively.

l The congestion triggering and release thresholds for the uplink RoT are 13 dBand 7 dB, respectively.

l The congestion triggering and release thresholds for the uplink RTWP are -85dB and -95 dB, respectively.

Normal stateWhen the actual uplink load is greater than or equal to the normal statethreshold for the actual uplink load and the number of users on the DCHis greater than or equal to the normal state threshold for the number ofusers on the DCH, the uplink power load of the cell enters the normalstate.NOTE

The default value of the normal state threshold for the actual uplink load is 4 dB.

DTCHcarried overthe FACH

l When the DTCH carried over the FACH is congested, the FACH ofthe cell enters the congestion state.

l When the DTCH carried over the FACH is not congested, the FACHof the cell exits the congestion state.

NOTEFor details about how to determine whether the DTCH carried over the FACH iscongested, see Flow Control Feature Parameter Description.

Number ofusers on theFACH

Normal stateWhen the number of users on the FACH is greater than or equal to thenormal state threshold for the number of users on the FACH, the numberof users on the FACH enters the normal state.NOTE

The default value of the normal state threshold for the number of users on the FACHis 15.



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MeasurementObject

Congestion State

Light-load stateWhen the number of users on the FACH is greater than or equal to thelight-load state threshold for the number of users on the FACH, thenumber of users on the FACH enters the light-load state.NOTE

The default value of the light-load state threshold for the number of users on theFACH is 5.

All the thresholds in the preceding table are configurable. For details about how to configurethese thresholds, see section 6.4.5 Activation.

3.2.2 Automatic Congestion Relief ActionsThe RNC performs corresponding congestion relief actions after determining the load state ofa cell. Table 3-2 lists all the congestion relief actions for each congestion state. Some functionsunder CS Preference and FACH Congestion Control have no negative impact on the networkwhen the cell is not congested. Therefore, these functions are enabled by default when theADAP_CELL_CONGEST_SWITCH under the AdapAlgoSwitch(BSC6900,BSC6910)parameter is set to ON and corresponding conditions are met. Once enabled, these functions willnot be disabled.

NOTE

l CS Preference includes the following functions: CS RAB setup optimization, CS services preemptingPS BE service resources, preemption algorithm, CS RRC preemption, high SPU CPU load preemption.

l FACH Congestion Control includes the following functions: RLC transmission suspension after UL4A, RLC transmission suspension after DL F2D, P2D in FACH congestion, TVM-based P2D, and F2Pstate transition through physical channel reconfiguration.

Table 3-2 Automatic congestion relief actions

Function Congestion Relief Action

N300/T300parameteroptimization

l When the downlink power load of a cell enters the second-levelcongestion state or the uplink power load of a cell (actual uplink load)enters the congestion state, the cell-level parameter N300(BSC6900,BSC6910) is set to 1.

l When the downlink power load of a cell exits the second-levelcongestion state and the uplink power load of a cell (actual uplink load)exits the congestion state, the cell-level parameter N300(BSC6900,BSC6910) is reset to its original value.



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RRCconnectionrelease waittime parameteroptimization

l When the downlink power load of a cell enters the second-levelcongestion state or the uplink power load of a cell (actual uplink load)enters the congestion state, the cell-level parameter LowRrcConnRej-WaitTmr(BSC6900,BSC6910) is set to 15.

l When the downlink power load of a cell exits the second-levelcongestion state and the uplink power load of a cell (actual uplink load)exits the congestion state, the cell-level parameter LowRrcConnRej-WaitTmr(BSC6900,BSC6910) is reset to its original value.

Inter-RATredirection

l When the downlink power load of a cell enters the second-levelcongestion state or the uplink power load of a cell (actual uplink load)enters the congestion state, the cell-level parameter ConnectFailRr-cRedirSwitch(BSC6900,BSC6910) is set to Allowed_To_Inter_RAT.

l When the downlink power load of a cell exits the second-levelcongestion state and the uplink power load of a cell (actual uplink load)exits the congestion state, the cell-level parameter ConnectFailRrcRe-dirSwitch(BSC6900,BSC6910) is reset to its original value.

Inter-RATDRD

l When the downlink power load of a cell enters the second-levelcongestion state or the uplink power load of a cell (actual uplink load)enters the congestion state, the cell-level parameter InterRATDRD-Switch(BSC6900,BSC6910) is set to ON.

l When the downlink power load of a cell exits the second-levelcongestion state and the uplink power load of a cell (actual uplink load)exits the congestion state, the cell-level parameter InterRATDRD-Switch(BSC6900,BSC6910) is reset to its original value.

Cell HSUPAuser numberparameteroptimization

l When the uplink power load of a cell (actual uplink load) enters thecongestion state, the MaxUpaUserNumDynAdjFactor(BSC6900,BSC6910) parameter is set to 50. This reduces the maximumnumber of HSUPA users in a cell.

l When the uplink power load of a cell (actual uplink load) exits thecongestion state, the MaxUpaUserNumDynAdjFactor(BSC6900,BSC6910) parameter is reset to its original value. Thisincreases the maximum number of HSUPA users in a cell.

Uplink initialaccess rate

l When the uplink power load of a cell (actual uplink load) enters thecongestion state, the cell-level parameter UlBeTraffInitBitrate(BSC6900,BSC6910) is decreased by one level (for example, decreasedfrom D64 to D32). This decreases the uplink initial access rate of R99users that are processing PS BE services.

l When the uplink power load of a cell (actual uplink load) exits thecongestion state, the cell-level parameter UlBeTraffInitBitrate(BSC6900,BSC6910) is reset to its original value. This increases theuplink initial access rate of R99 users that are processing PS BE services.



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Downlinkinitial accessrate

l When the downlink power load of a cell enters the first-level congestionstate, the cell-level parameterDlBeTraffInitBitrate(BSC6900,BSC6910) is decreased by one level (for example, decreasedfrom D64 to D32). This decreases the downlink initial access rate of R99users that are processing PS BE services.

l When the downlink power load of a cell exits the first-level congestionstate, the cell-level parameter DlBeTraffInitBitrate(BSC6900,BSC6910) is reset to its original value. This increases thedownlink initial access rate of R99 users that are processing PS BEservices.

CS RAB setupoptimization

When the uplink power load of a cell (actual uplink load) or downlink powerload of a cell enters the normal state, the cell-level parameterCSRABCacOptSwitch(BSC6900,BSC6910) is automatically set to ON toenable the CS RAB setup optimization function.

CS servicespreempting PSBE serviceresources

When the uplink power load of a cell (actual uplink load) or downlink powerload of a cell enters the normal state, thePREEMPT_ENH_CSRAB_PREEMPT_PS_SWITCH under the cell-level parameter PreemptEnhSwitch(BSC6900,BSC6910) is automaticallyset to ON. This enables CS services to preempt resources occupied by PSservices to access the cell.NOTE

This function is disabled by default. If you need to use this function, activate itaccording to the instructions in 6.4.5 Activation.

Preemptionalgorithm

When the uplink power load of a cell (actual uplink load) or downlink powerload of a cell enters the normal state, the cell-level parameterPreemptAlgoSwitch(BSC6900,BSC6910) is automatically set to ON toactivate the preemption algorithm.

CS RRCpreemption

When the uplink power load of a cell (actual uplink load) or downlink powerload of a cell enters the normal state, thePREEMPT_ENH_CSRRC_PREEMPT_PS_SWITCH under the cell-level parameter PreemptEnhSwitch(BSC6900,BSC6910) is automaticallyset to ON. This enables RRC connection requests for CS services to preemptresources occupied by PS services.

High SPUCPU loadpreemption

When the uplink power load of a cell (actual uplink load) or downlink powerload of a cell enters the normal state, thePREEMPT_ENH_CPU_HIGHLOAD_CTRL_SWITCH under thecell-level parameter PreemptEnhSwitch(BSC6900,BSC6910) isautomatically set to ON. This enables the preemption when the SPU CPUload is high.



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P2D CSpreemption

When the uplink power load of a cell (actual uplink load) or downlink powerload of a cell enters the normal state, the cell-level parameterCsP2DPreemptSwitch(BSC6900,BSC6910) is automatically set to ON.This enables CS services of a user to preempt resources occupied by PS BEservices during the transition from CELL_PCH or URA_PCH toCELL_DCH (P2D).

Increasingnumber of UEson FACH to 60

When the number of users on the FACH in a cell enters the normal state,the FACH_60_USER_SWITCH under the cell-level parameterNBMFACHCTRLALGOSWITCH(BSC6900,BSC6910) is automaticallyset to ON. This enables a maximum of 60 UEs to be carried on the FACH.

RLCtransmissionsuspensionafter UL 4A

l When the DTCH carried over the FACH in a cell enters the congestionstate, the PERFENH_TX_INTERRUPT_AFT_TRIG_SWITCHunder the parameter CORRMFACHCTRLALGOSWITCH(BSC6900,BSC6910) is automatically set to ON. This enables the RNCto suspend the RLC data transmission for a certain period of time afterreporting 4A measurement reports.

l When the DTCH carried over the FACH in a cell exits the congestionstate, the PERFENH_TX_INTERRUPT_AFT_TRIG_SWITCHunder the parameter CORRMFACHCTRLALGOSWITCH(BSC6900,BSC6910) is automatically reset to its original value.

RLCtransmissionsuspensionafter DL F2D

l When the DTCH carried over the FACH in a cell enters the congestionstate, the RNC_F2D_RLC_SUSPEND_SWITCH under theRRFACHCTRLALGOSWITCH(BSC6900,BSC6910) parameter isautomatically set to ON. This enables the RNC to suspend the RLC datatransmission during F2D state transitions.

l When the DTCH carried over the FACH in a cell exits the congestionstate, the RNC_F2D_RLC_SUSPEND_SWITCH under theRRFACHCTRLALGOSWITCH(BSC6900,BSC6910) parameter isautomatically reset to its original value.

P2D in FACHcongestion

When the number of users on the FACH enters the normal state, theP2D_SWITCH under the RRFACHCTRLALGOSWITCH(BSC6900,BSC6910) parameter is automatically set to ON. This enablesthe RNC to switch the user from the CELL_PCH or URA_PCH state to theCELL_DCH state when the FACH is congested.

TVM-basedP2D

When the number of users on the FACH enters the light-load state, theRNC_TVM_BASED_P2D_SWITCH under theRRFACHCTRLALGOSWITCH(BSC6900,BSC6910) parameter isautomatically set to ON. This enables the RNC to trigger a P2D statetransition for a user when the RNC receives from the user a CELL UPDATEmessage with the Traffic volume indicator IE set to TRUE or receives fromthe CN a dynamic traffic volume measurement value that meets a specifiedthreshold.



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F2P statetransitionthroughphysicalchannelreconfiguration

When the number of users on the FACH enters the light-load state, theCMP_F2P_PROCESS_OPTIMIZATION_SWITCH under theCORRMFACHCTRLALGOSWITCH(BSC6900,BSC6910) parameter isautomatically set to ON. This enables the F2P state transition to beperformed through the physical channel reconfiguration procedure.

RxLevMinparameteroptimization

l When the uplink power load of a cell (RoT) enters the congestion state,the value of the Qrxlevmin(BSC6900,BSC6910) parameter isautomatically increased by 5.

l When the uplink power load of a cell (RoT) exits the congestion state,the value of the Qrxlevmin(BSC6900,BSC6910) parameter is reset toits original value.

HSDPA usernumberrestrictioncancellation

l When the number of users on the DCH enters the normal state, theMaxHsdpaUserNum(BSC6900,BSC6910) parameter is automaticallyset to the larger value between the current value and 128.NOTE

The maximum number of HSDPA users allowed in a cell equals the smaller valuebetween MaxHsdpaUserNum(BSC6900,BSC6910) and the license capacity.

Cell-levelstatic CAPSflow control

l When the number of users on the DCH enters the normal state, theCellCallShockSwitch(BSC6900,BSC6910) parameter is automaticallyset to ON. This enables the cell-level static CAPS flow control function.NOTE


Cell-leveldynamicCAPS flowcontrol

l When the number of users on the DCH enters the normal state, theCELLKPITOCAPS(BSC6900,BSC6910) parameter is automaticallyset to ON. This enables the cell-level dynamic CAPS flow controlfunction.NOTE


DPCH pilotpoweradjustment

l When the number of users on the DCH enters the light-load state, thePilotPOOptiSwitch parameter is automatically set to ON. This enablesthe DPCH pilot power adjustment function.

l When the number of users on the DCH exits the light-load state, thePilotPOOptiSwitch parameter is reset to its original value.



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NOTE

When this feature is disabled or a function in the preceding table is deactivated, the parameters involvedin this feature or function are reset to their original values. If values of parameters related to this featureare manually adjusted after this feature is enabled, the adjusted values will be overwritten because thesevalues will be automatically adjusted later. Therefore, do not manually adjust related parameters after thisfeature is enabled.



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4 Related Features

Prerequisite FeaturesInter-RAT redirection, inter-RAT DRD, and preemption-related are automatically enabled whenthe cell load meets certain requirements (as listed in Table 3-2). These functions depend on thefollowing features:

l WRFD-02040003 Inter System Redirectl WRFD-02040002 Inter System Direct Retryl WRFD-010505 Queuing and Pre-Emption

Mutually Exclusive FeaturesNone

Impacted FeaturesNone

WCDMA RANAutomatic Congestion Handler Feature ParameterDescription 4 Related Features


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5 Network Impact

System Capacity

Network configuration optimization cannot be performed in advance for special events whereunanticipated network congestion often occurs. With Automatic Congestion Handler,congestion relief can be performed automatically when cells are congested. This improvessystem capacity.

This feature involves multiple algorithms and functions. The impact of each algorithm orfunction on system capacity is as follows:

l N300/T300 parameter optimization: This function reduces the number of RRCCONNECTION REQUEST retransmissions in congestion scenarios and therefore reducesadditional resource consumption in the uplink. When there are sufficient services, thisaction also increases the uplink traffic volume.

l RRC connection release wait time parameter optimization: This function prolongs the timea user of low-priority must wait before sending a second RRC CONNECTION REQUESTmessage and reduces additional resource consumption in the uplink in congestion scenarios.When there are sufficient services, this action also increases the uplink traffic volume.

l Cell HSUPA user number parameter optimization: This function reduces the maximumnumber of online HSUPA users in a cell in congestion scenarios. The uplink throughput islow in congestion scenarios and the power efficiency of R99 services is higher than that ofHSUPA services in low uplink throughput scenarios. Eventually, this action reduces theresource consumption in the uplink. When there are sufficient services, this action alsoincreases the total uplink traffic volume.

l Uplink or downlink initial access rate: This function decreases the initial access rate of R99users that are processing PS BE services and reduces the power consumption per user incongestion scenarios. When there are sufficient services, this action also increases thenumber of users on the DCH and improves system capacity. However, this reduces theaverage throughput of a single user that is processing PS BE services.

l Functions under CS Preference, such as CS RAB setup optimization and CS servicespreempting PS BE service resources, ensure that CS services preferentially access thenetwork. This improves the CS Erlangs but reduces the PS traffic volume in congestionscenarios.

l Functions under FACH Congestion Control, such as RLC transmission suspension afterUL 4A, improve the utilization of FACH resources and therefore improve system capacity.

WCDMA RANAutomatic Congestion Handler Feature ParameterDescription 5 Network Impact


18

l RxLevMin parameter optimization: This function increases the value of the RxLevMinparameter when a cell enters the congestion state so that some UEs will not camp on thiscell. This affects the cell capacity but realizes load balancing, without affecting systemcapacity.

l HSDPA user number restriction cancellation: This function increases the number ofadmitted HSDPA users.

The overall impact on system capacity is as follows:

In cell congestion scenarios, congestion relief actions help reduce cell load and improve theefficiency of resource utilization. This feature also helps improve cell capacity when there aresufficient services.

Network Performance

The impact of each algorithm or function on network performance is as follows:

l N300/T300 parameter optimization: This function reduces the number of RRCCONNECTION REQUEST retransmissions in congestion scenarios. This extends theresponse delay users experience.

l RRC connection release wait time parameter optimization: This function prolongs the timea user of low-priority must wait before sending a second RRC CONNECTION REQUESTmessage in congestion scenarios. This extends the response delay these users experience.

l Cell HSUPA user number parameter optimization: This function reduces the maximumnumber of online HSUPA users in a cell in congestion scenarios. As a result, some HSUPAusers can be carried only on the DCH, affecting user experience.

l Inter-RAT redirection: This function enables users to be redirected to the GSM networkafter failing to access the UMTS network. This reduces the access delay for these users,improving user experience.

l Inter-RAT DRD: This function enables CS users to access the GSM network after failingto access the UMTS network in congestion scenarios. This reduces the access delay forthese users and slightly improves the setup success rate of CS services.

l Functions under CS Preference, such as CS RAB setup optimization and CS servicespreempting PS BE service resources, ensure that CS services preferentially access thenetwork. This improves the CS RAB setup success rate in congestion scenarios. However,the PS call drop rate slightly increases if the occurrences of CS or PS services preemptingresources occupied by PS services increase.

l Cell-level static CAPS flow control or cell-level dynamic CAPS flow control: This functiondecreases the number of allowable RRC connections in heavy traffic scenarios, affectingthe RRC connection setup success rate.

l DPCH pilot power adjustment: If the length or power offset of the pilot field is reduced,SIR estimations will become less accurate and Uu-interface synchronization probability isreduced. This increases the call drop rate.

The overall impact on network performance is as follows:

If CS admission fails before this feature is enabled, the CS access success rate significantlyincreases after this feature is enabled. However, the PS call drop rate also increases when PS orCS preemption occurs.



19

NOTE

l After this feature is enabled, some of the preceding functions take effect simultaneously and affecteach other. Therefore, the impact of this feature on system capacity and network performance cannotbe quantified.

l After this feature is enabled, the RNC dynamically adjusts parameters and therefore the CPU usage ofthe SPU subsystem slightly increases. The increase in the CPU usage is in direct proportion to thenumber of cells enabled with this feature on the SPU subsystem. When all the cells on the SPUsubsystem are enabled with this feature, the CPU usage of the SPU subsystem increases by less than3%.



20

6 Engineering Guidelines

6.1 When to Use Automatic Congestion HandlerThe Automatic Congestion Handler feature is recommended in the following scenarios:

l The network configuration involved in this feature is not optimized.

l Unplanned events happen. It is recommended that this feature always be enabled in thisscenario because network congestion often occurs and the congestion state is unpredictablein this scenario.

l A cell is congested. This feature helps relieve cell congestion and improves system capacity.

For details about how to determine whether the network configuration needs to be optimizedand whether a cell is congested, see section 6.2 Required Information

6.2 Required Informationl Collect the values of the VS.CellDCHUEs, VS.MeanULActualPowerLoad,

VS.MeanRTWP, VS.MeanTCP.NonHS, VS.CellFACHUEs.MAX, andVS.CellFACHUEs counters during busy hours to evaluate the congestion states of differentresources in a cell. When the counters meet the following conditions, the correspondingresource in the cell is congested.It is recommended that this feature be enabled for a cell ifany resource is congested. Then, based on the triggering conditions of congestion reliefactions (described in 3.2.1 Decision Conditions for Different Congestion States and 3.2.2Automatic Congestion Relief Actions), evaluate whether a corresponding function hastaken effect. The heavier the cell load is, the more significant gains a function provides.

– The uplink power load meets the following conditions:

The value of the VS.CellDCHUEs counter is greater than 20.

The value of the VS.MeanULActualPowerLoad counter is greater than 65%. That is,the actual uplink load is greater than 5 dB. If the actual uplink load cannot be obtained,this feature uses the RTWP instead. In this case, it is required that the RoT correspondingto the value of the VS.MeanRTWP counter be greater than 5 dB.

– For the downlink power load, the value of the VS.MeanTCP.NonHS counter meets thefollowing formula: 10[(VS.MeanTCP.NonHS-MaxTxPower/10)/10] > 60%.

WCDMA RANAutomatic Congestion Handler Feature ParameterDescription 6 Engineering Guidelines


21

– For the number of users on the FACH, the value of the VS.CellFACHUEs counter isgreater than 25 or the value of the VS.CellFACHUEs.MAX counter is greater than orequal to 30.

l Check the settings of related parameters and determine whether this feature is necessarybased on the congestion relief actions described in 3.2.2 Automatic Congestion ReliefActions.

Function Setting Notes MML Command

N300/T300parameteroptimization

If N300(BSC6900,BSC6910) is setto 1 before this feature is enabled,this function cannot take effect andit is recommended that this functionbe disabled.NOTE

When this feature is enabled, thisfunction is enabled by default.

l Preferentially run the LSTUCELLIDLEMODETIMERcommand to query the value ofN300 specified for a cell.

l If N300 is not specified for the cell,run the LSTUIDLEMODETIMER commandto query its value.

RRCconnectionrelease waittimeparameteroptimization

If LowRrcConnRejWaitTmr(BSC6900,BSC6910) is set to 15before this feature is enabled, thisfunction cannot take effect and it isrecommended that this function bedisabled.NOTE


l Preferentially run the LSTUCELLSTATETIMER commandto query the value ofLowRrcConnRejWaitTmrspecified for a cell.

l If LowRrcConnRejWaitTmr is notspecified for the cell, run the LSTUSTATETIMER command toquery its value.

Inter-RATredirection

If ConnectFailRrcRedirSwitch(BSC6900,BSC6910) is set toAllowed_To_Inter_RAT beforethis feature is enabled, this functioncannot take effect and it isrecommended that this function bedisabled.NOTE


l Preferentially run the LSTUCELLDRD command to querythe value of ConnectFailRrcRe-dirSwitch specified for a cell.

l If ConnectFailRrcRedirSwitch isnot specified for the cell, run theLST UDRD command to query itsvalue.

Inter-RATDRD

If InterRATDRDSwitch(BSC6900,BSC6910) orDR_INTER_RAT_DRD_SWITCH under DrSwitch is set to ONbefore this feature is enabled, thisfunction cannot take effect and it isrecommended that this function bedisabled.NOTE


l Preferentially run the LSTUCELLINTERRATDRcommand to query the value ofInterRATDRDSwitch(BSC6900,BSC6910) specified fora cell.

l If InterRATDRDSwitch is notspecified for the cell, run the LSTUCORRMALGOSWITCHcommand to query the setting ofDR_INTER_RAT_DRD_SWITCH.



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Cell HSUPAuser numberparameteroptimization

If MaxUpaUserNumDynAdjFac-tor(BSC6900,BSC6910) is set to50 before this feature is enabled,this function cannot take effect andit is recommended that this functionbe disabled.NOTE


Run the LST UCELLCAC commandto query the value ofMaxUpaUserNumDynAdjFactorspecified for a cell.

Uplinkinitial accessrate

If the value of UlBeTraffInitBi-trate(BSC6900,BSC6910) is lessthan D16 before this feature isenabled, this function cannot takeeffect and it is recommended thatthis function be disabled.NOTE


l Preferentially run the LSTUCELLFRC command to querythe value of UlBeTraffInitBitratespecified for a cell.

l If UlBeTraffInitBitrate is notspecified for the cell, run the LSTUFRC command to query its value.

Downlinkinitial accessrate

If the value of DlBeTraffInitBi-trate(BSC6900,BSC6910) is lessthan D16 before this feature isenabled, this function cannot takeeffect and it is recommended thatthis function be disabled.NOTE


l Preferentially run the LSTUCELLFRC command to querythe value of DlBeTraffInitBitratespecified for a cell.

l If DlBeTraffInitBitrate is notspecified for the cell, run the LSTUFRC command to query its value.

CS RABsetupoptimization

If CSRABCacOptSwitch(BSC6900,BSC6910) is set to ONbefore this feature is enabled, thisfunction cannot take effect and it isrecommended that this function bedisabled.NOTE


Run the LSTUCELLALGOSWITCH command toquery the value of CSRABCacOptS-witch specified for a cell.



23


CS servicespreemptingPS BEserviceresources

IfPREEMPT_ENH_CSRAB_PREEMPT_PS_SWITCH under thePreemptEnhSwitch(BSC6900,BSC6910) parameter isset to ON before this feature isenabled, this function cannot takeeffect and it is recommended thatthis function be disabled.NOTE


l Preferentially run the LSTUCELLQUEUEPREEMPTcommand to query the value ofPREEMPT_ENH_CSRAB_PREEMPT_PS_SWITCH specifiedfor a cell.

l IfPREEMPT_ENH_CSRAB_PREEMPT_PS_SWITCH is notspecified for the cell, run the LSTUQUEUEPREEMPT command toquery its value.

Preemptionalgorithm

If PreemptAlgoSwitch(BSC6900,BSC6910) is set to ONbefore this feature is enabled, thisfunction cannot take effect and it isrecommended that this function bedisabled.NOTE


l Preferentially run the LSTUCELLQUEUEPREEMPTcommand to query the value ofPreemptAlgoSwitch specified for acell.

l If PreemptAlgoSwitch is notspecified for the cell, run the LSTUQUEUEPREEMPT command toquery its value.

CS RRCpreemption

IfPREEMPT_ENH_CSRRC_PREEMPT_PS_SWITCH is set toON before this feature is enabled,this function cannot take effect andit is recommended that this functionbe disabled.NOTE


l Preferentially run the LSTUCELLQUEUEPREEMPTcommand to query the value ofPREEMPT_ENH_CSRRC_PREEMPT_PS_SWITCH specifiedfor a cell.

l IfPREEMPT_ENH_CSRRC_PREEMPT_PS_SWITCH is notspecified for the cell, run the LSTUQUEUEPREEMPT command toquery its value.

High SPUCPU loadpreemption

IfPREEMPT_ENH_CPU_HIGHLOAD_CTRL_SWITCH is set toON before this feature is enabled,this function cannot take effect andit is recommended that this functionbe disabled.NOTE


l Preferentially run the LSTUCELLQUEUEPREEMPTcommand to query the value ofPREEMPT_ENH_CPU_HIGHLOAD_CTRL_SWITCH specifiedfor a cell.

l IfPREEMPT_ENH_CPU_HIGHLOAD_CTRL_SWITCH is notspecified for the cell, run the LSTUQUEUEPREEMPT command toquery its value.



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P2D CSpreemption

If CsP2DPreemptSwitchis set toON before this feature is enabled,this function cannot take effect andit is recommended that this functionbe disabled.NOTE


l Preferentially run the LSTUCELLQUEUEPREEMPTcommand to query the value ofCsP2DPreemptSwitch specified fora cell.

l If CsP2DPreemptSwitch is notspecified for the cell, run the LSTUQUEUEPREEMPT command toquery its value.

Increasingnumber ofUEs onFACH to 60

If FACH_60_USER_SWITCHisset to ON before this feature isenabled, this function cannot takeeffect and it is recommended thatthis function be disabled.NOTE


l Run the LSTUCELLALGOSWITCHcommand to query the value ofFACH_USER_NUM_NOT_CTRL.

l Then, preferentially run the LSTUCELLFACHCONGCTRLcommand to query the value ofFACH_60_USER_SWITCHspecified for a cell.

l If FACH_60_USER_SWITCH isnot specified for the cell, run theLST UCACALGOSWITCHcommand to query its value.

RLCtransmissionsuspensionafter UL 4A

IfPERFENH_TX_INTERRUPT_AFT_TRIG_SWITCH is set to 1before this feature is enabled, thisfunction cannot take effect and it isrecommended that this function bedisabled.NOTE


l Preferentially run the LSTUCELLFACHCONGCTRLcommand to query the value ofPERFENH_TX_INTERRUPT_AFT_TRIG_SWITCH specifiedfor a cell.

l IfPERFENH_TX_INTERRUPT_AFT_TRIG_SWITCH is notspecified for the cell, run the LSTUCORRMPARA command toquery its value.



25


RLCtransmissionsuspensionafter DLF2D

IfRNC_F2D_RLC_SUSPEND_SWITCH is set to 1 before thisfeature is enabled, this functioncannot take effect and it isrecommended that this function bedisabled.NOTE


l Preferentially run the LSTUCELLFACHCONGCTRLcommand to query the value ofRNC_F2D_RLC_SUSPEND_SWITCH specified for a cell.

l IfRNC_F2D_RLC_SUSPEND_SWITCH is not specified for the cell,run the LSTURRCTRLSWITCH command toquery its value.

P2D inFACHcongestion

IfRNC_TVM_BASED_P2D_SWITCH is set to 1 before this feature isenabled, this function cannot takeeffect and it is recommended thatthis function be disabled.NOTE


l Preferentially run the LSTUCELLFACHCONGCTRLcommand to query the value ofRNC_TVM_BASED_P2D_SWITCH specified for a cell.

l IfRNC_TVM_BASED_P2D_SWITCH is not specified for the cell, runthe LST URRCTRLSWITCHcommand to query its value.

TVM-basedP2D

IfRNC_TVM_BASED_P2D_SWITCH is set to 1 before this feature isenabled, this function cannot takeeffect and it is recommended thatthis function be disabled.NOTE


l Preferentially run the LSTUCELLFACHCONGCTRLcommand to query the value ofRNC_TVM_BASED_P2D_SWITCH specified for a cell.

l IfRNC_TVM_BASED_P2D_SWITCH is not specified for the cell, runthe LST URRCTRLSWITCHcommand to query its value.

F2P statetransitionthroughphysicalchannelreconfiguration

IfCMP_F2P_PROCESS_OPTIMIZATION_SWITCH is set to 1before this feature is enabled, thisfunction cannot take effect and it isrecommended that this function bedisabled.NOTE


l Preferentially run the LSTUCELLFACHCONGCTRLcommand to query the value ofCMP_F2P_PROCESS_OPTIMIZATION_SWITCH specified fora cell.

l IfCMP_F2P_PROCESS_OPTIMIZATION_SWITCH is notspecified for the cell, run the LSTUCORRMALGOSWITCHcommand to query its value.



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RxLevMinparameteroptimization

If Qrxlevmin(BSC6900,BSC6910)is set to -48 before this feature isenabled, this function is useless andit is recommended that this functionbe disabled.NOTE


Run the LST UCELLSELRESELcommand to query the value ofQrxlevmin(BSC6900,BSC6910)specified for a cell.

HSDPA usernumberrestrictioncancellation

If MaxHsdpaUserNum(BSC6900,BSC6910) is set to 128before this feature is enabled, thisfunction is useless and it isrecommended that this function bedisabled.NOTE


Run the LST UCELLCAC commandto query the value ofMaxHsdpaUserNum(BSC6900,BSC6910) specified for acell.

Cell-levelstatic CAPSflow control

If CellCallShockSwitch(BSC6900,BSC6910) is set to ONbefore this feature is enabled, thisfunction is useless and it isrecommended that this function bedisabled.NOTE

When this feature is enabled, thisfunction is disabled by default.

Run the LSTUCELLALGOSWITCH command toquery the value of CellCallShockS-witch(BSC6900,BSC6910) specifiedfor a cell.

Cell-leveldynamicCAPS flowcontrol

If CELLKPITOCAPS(BSC6900,BSC6910) is set to ONbefore this feature is enabled, thisfunction is useless and it isrecommended that this function bedisabled.NOTE

When this feature is enabled, thisfunction is disabled by default.

Run the LSTUCELLFCALGOPARA command toquery the value of CELLKPITOCAPS(BSC6900,BSC6910) specified for acell.

DPCH pilotpoweradjustment

If PilotPOOptiSwitch orPC_PILOT_PO_OPTI_SWITCH under PcSwitch is set to ONbefore this feature is enabled, thisfunction is useless and it isrecommended that this function bedisabled.NOTE


l Preferentially run the LSTUCELLPCSWITCH command toquery the value of PilotPOOptiS-witch specified for a cell.

l If PilotPOOptiSwitch is notspecified for the cell, run the LSTUCORRMALGOSWITCHcommand to query the value ofPC_PILOT_PO_OPTI_SWITCH.



27

For details about how to activate or deactivate a single function, see section 6.4 Deployment.

6.3 Network PlanningNone

6.4 Deployment

6.4.1 Requirements

FeatureSee "4 Related Features".

For details about WRFD-02040003 Inter System Redirect and WRFD-02040002 Inter SystemDirect Retry features, see Intelligent Access Control Feature Parameter Description.

For details about WRFD-010505 Queuing and Pre-Emption feature, see Directed Retry DecisionFeature Parameter Description.

HardwareNone.

LicenseFor details about how to activate the license, see License Management Feature ParameterDescription.

Feature ID FeatureName

LicenseControlItem

LicenseControlName

NE LicenseAllocationforMultipleOperators

SalesUnit

WRFD-160253


LQW1ACHRESE

AutomaticCongestionHandler(per Erl)

BSC6900BSC6910

Method 1 perErl

WRFD-160253


LQW1ACHRESM

AutomaticCongestionHandler(per Mbps)

BSC6900BSC6910

Method 2 perMbps

If RAN Sharing or MOCN is enabled, the licensed value is allocated among the primary andsecondary operators according to the value of the "License Allocation for Multiple Operatorsparameter".



28

Method 1: it is recommended that the license allocation proportion of a feature be consistentwith that of the capacity license item "Voice Erlang-Erlang". The licensed values can be set byrunning the SET LICENSE command.

Method 2: it is recommended that the license allocation proportion of a feature be consistentwith that of the capacity license item "PS throughput only-kbps". The licensed values can be setby running the SET LICENSE command.

Other RequirementsNone.

6.4.2 Data PreparationParameterName

Parameter ID Description DataSource

AdaptiveAlgorithmSwitch

AdapAlgoSwitch(BSC6900,BSC6910):ADAP_CELL_CONGEST_SWITCH

TheADAP_CELL_CONGEST_SWITCH under this parametercontrols whether this feature isenabled.

Networkplan



29

ParameterName


AtomRuleID AtomRuleID(BSC6900,BSC6910)

l When the second-levelcongestion triggeringthreshold for the downlinknon-HSPA power load needs tobe adjusted, run the MODUIOPTATOMRULEcommand to set theAtomRuleID(BSC6900,BSC6910)parameter to 1.

l When the second-levelcongestion release thresholdfor the downlink non-HSPApower load needs to beadjusted, run the MODUIOPTATOMRULEcommand to set theAtomRuleID(BSC6900,BSC6910)parameter to 4.

l When the first-level congestiontriggering threshold for thedownlink non-HSPA powerload needs to be adjusted, runthe MODUIOPTATOMRULEcommand to set theAtomRuleID(BSC6900,BSC6910)parameter to 7.

l When the first-level congestionrelease threshold for thedownlink non-HSPA powerload needs to be adjusted, runthe MODUIOPTATOMRULEcommand to set theAtomRuleID(BSC6900,BSC6910)parameter to 8.

l When the normal statethreshold for the downlinknon-HSPA power load needs tobe adjusted, run the MODUIOPTATOMRULEcommand to set the

Networkplan



30

ParameterName


AtomRuleID(BSC6900,BSC6910)parameter to 15.

l When the congestiontriggering threshold for theactual uplink load needs to beadjusted, run the MODUIOPTATOMRULEcommand to set theAtomRuleID(BSC6900,BSC6910)parameter to 2.

l When the congestion releasethreshold for the actual uplinkload needs to be adjusted, runthe MODUIOPTATOMRULEcommand to set theAtomRuleID(BSC6900,BSC6910)parameter to 5.

l When the normal statethreshold for the actual uplinkload needs to be adjusted, runthe MODUIOPTATOMRULEcommand to set theAtomRuleID(BSC6900,BSC6910)parameter to 11.

l When the congestiontriggering threshold for theuplink RoT needs to beadjusted, run the MODUIOPTATOMRULEcommand to set theAtomRuleID(BSC6900,BSC6910)parameter to 16.

l When the congestion releasethreshold for the uplink RoTneeds to be adjusted, run theMOD UIOPTATOMRULEcommand to set theAtomRuleID



31

ParameterName


(BSC6900,BSC6910)parameter to 17.

l When the congestiontriggering threshold for theuplink RTWP needs to beadjusted, run the MODUIOPTATOMRULEcommand to set theAtomRuleID(BSC6900,BSC6910)parameter to 18.

l When the congestion releasethreshold for the uplink RTWPneeds to be adjusted, run theMOD UIOPTATOMRULEcommand to set theAtomRuleID(BSC6900,BSC6910)parameter to 19.

l When the congestiontriggering threshold for thenumber of users on the DCHneeds to be adjusted, run theMOD UIOPTATOMRULEcommand to set theAtomRuleID(BSC6900,BSC6910)parameter to 3.

l When the congestion releasethreshold for the number ofusers on the DCH needs to beadjusted, run the MODUIOPTATOMRULEcommand to set theAtomRuleID(BSC6900,BSC6910)parameter to 6.

l When the normal statethreshold for the number ofusers on the DCH needs to beadjusted, run the MODUIOPTATOMRULEcommand to set theAtomRuleID(BSC6900,BSC6910)parameter to 12.



32

ParameterName


l When the light-load statetriggering threshold for thenumber of users on the DCHneeds to be adjusted, run theMOD UIOPTATOMRULEcommand to set theAtomRuleID(BSC6900,BSC6910)parameter to 20.

l When the light-load staterelease threshold for thenumber of users on the DCHneeds to be adjusted, run theMOD UIOPTATOMRULEcommand to set theAtomRuleID(BSC6900,BSC6910)parameter to 21.

l When the normal statethreshold for the number ofusers on the FACH needs to beadjusted, run the MODUIOPTATOMRULEcommand to set theAtomRuleID(BSC6900,BSC6910)parameter to 13.

l When the light-load statethreshold for the number ofusers on the FACH needs to beadjusted, run the MODUIOPTATOMRULEcommand to set theAtomRuleID(BSC6900,BSC6910)parameter to 14.



33

ParameterName


ThresholdRangeValue

Threshold(BSC6900,BSC6910)

The thresholds must meet thefollowing conditions:l The second-level congestion

triggering threshold for thedownlink non-HSPA powerload is greater than the second-level congestion releasethreshold for the downlinknon-HSPA power load.

l The first-level congestiontriggering threshold for thedownlink non-HSPA powerload is greater than the first-level congestion releasethreshold for the downlinknon-HSPA power load.

l The congestion triggeringthreshold for the actual uplinkload is greater than thecongestion release thresholdfor the actual uplink load.

l The congestion triggeringthreshold for the uplink RoT isgreater than the congestionrelease threshold for the uplinkRoT.

l The congestion triggeringthreshold for the uplink RTWPis greater than the congestionrelease threshold for the uplinkRTWP.

l The congestion triggeringthreshold for the number ofusers on the DCH is greaterthan the congestion releasethreshold for the number ofusers on the DCH.

l The light-load state triggeringthreshold for the number ofusers on the DCH is greaterthan the light-load state releasethreshold for the number ofusers on the DCH.

Networkplan



34

6.4.3 PrecautionsNone

6.4.4 Hardware AdjustmentNone

6.4.5 Activation

Using MML Commands

Step 1 (Optional) Configure thresholds for congestion decision conditions. For details about thecongestion decision conditions, see section 3.2.2 Automatic Congestion Relief Actions.

Configure the second-level congestion thresholds for the downlink non-HSPA power load.

l Run the RNC MML command MOD UIOPTATOMRULE. In this substep, setAtomRuleID to 1, MeasureObjType to CELL, MeasureObject toDL_NONH_PWR_STATUS, and ThresholdEnumValue to an appropriate value to adjustthe second-level congestion triggering threshold for the downlink non-HSPA power load.

l Run the RNC MML command MOD UIOPTATOMRULE. In this substep, setAtomRuleID to 4, MeasureObjType to CELL, MeasureObject toDL_NONH_PWR_STATUS, and ThresholdEnumValue to an appropriate value to adjustthe second-level congestion release threshold for the downlink non-HSPA power load.

Configure the first-level congestion thresholds for the downlink non-HSPA power load.

l Run the RNC MML command MOD UIOPTATOMRULE. In this substep, setAtomRuleID to 7, MeasureObjType to CELL, MeasureObject toDL_NONH_PWR_STATUS, and ThresholdEnumValue to an appropriate value to adjustthe first-level congestion triggering threshold for the downlink non-HSPA power load.

l Run the RNC MML command MOD UIOPTATOMRULE. In this substep, setAtomRuleID to 8, MeasureObjType to CELL, MeasureObject toDL_NONH_PWR_STATUS, and ThresholdEnumValue to an appropriate value to adjustthe first-level congestion release threshold for the downlink non-HSPA power load.

Configure the normal state threshold for the downlink non-HSPA power load.

Run the RNC MML command MOD UIOPTATOMRULE. In this substep, set AtomRuleIDto 15, MeasureObjType to CELL, MeasureObject to DL_NONH_PWR_STATUS, andThresholdEnumValue to an appropriate value to adjust the normal state threshold for thedownlink non-HSPA power load.

Configure the congestion thresholds for the uplink load.

l Run the RNC MML command MOD UIOPTATOMRULE. In this substep, set theAtomRuleID parameter to 2, MeasureObjType to CELL, MeasureObject toUL_ACTUAL_LOAD, and set the ThresholdRangeValue parameter to adjust thecongestion triggering threshold for the actual uplink load.

l Run the RNC MML command MOD UIOPTATOMRULE.In this substep, set theAtomRuleID parameter to 5, MeasureObjType to CELL, MeasureObject to



35

UL_ACTUAL_LOAD, and set the ThresholdRangeValue parameter to adjust thecongestion release threshold for the actual uplink load.

l Run the RNC MML command MOD UIOPTATOMRULE. In this substep, set theAtomRuleID parameter to 16 and set the ThresholdRangeValue parameter to adjust thecongestion triggering threshold for the uplink RoT.

l Run the RNC MML command MOD UIOPTATOMRULE. In this substep, setAtomRuleID to 17 and ThresholdRangeValue to an appropriate value to adjust thecongestion release threshold for the uplink RoT.

l Run the RNC MML command MOD UIOPTATOMRULE. In this substep, setAtomRuleID to 18 and ThresholdRangeValue to an appropriate value to adjust thecongestion triggering threshold for the uplink RTWP.

l Run the RNC MML command MOD UIOPTATOMRULE. In this substep, set theAtomRuleID parameter to 19 and set the ThresholdRangeValue parameter to adjust thecongestion release threshold for the uplink RTWP.

l Run the RNC MML command MOD UIOPTATOMRULE. In this substep, setAtomRuleID to 3, MeasureObjType to CELL, MeasureObject to DCH_USER_NUM, andThresholdRangeValue to an appropriate value to adjust the congestion triggering thresholdfor the number of users on the DCH.

l Run the RNC MML command MOD UIOPTATOMRULE. In this substep, setAtomRuleID to 6, MeasureObjType to CELL, MeasureObject to DCH_USER_NUM, andThresholdRangeValue to an appropriate value to adjust the congestion release threshold forthe number of users on the DCH.

Configure the normal state threshold for the uplink non-HSPA power load.

l Run the RNC MML command MOD UIOPTATOMRULE. In this substep, set theAtomRuleID parameter to 11, MeasureObjType to CELL, MeasureObject toUL_ACTUAL_LOAD, and set the ThresholdRangeValue parameter to adjust the normalstate threshold for the actual uplink load.

l Run the RNC MML command MOD UIOPTATOMRULE. In this substep, set theAtomRuleID parameter to 12, MeasureObjType to CELL, MeasureObject toDCH_USER_NUM, and set the ThresholdRangeValue parameter to adjust the normalstate threshold for the number of users on the DCH.

Configure the state thresholds for the number of users on the FACH.

l Run the RNC MML command MOD UIOPTATOMRULE. In this substep, set theAtomRuleID parameter to 13, MeasureObjType to CELL, MeasureObject toFACH_USER_NUM, and set the ThresholdRangeValue parameter to adjust the normalstate threshold for the number of users on the FACH.

l Run the RNC MML command MOD UIOPTATOMRULE. In this substep, set theAtomRuleID parameter to 14, MeasureObjType to CELL, MeasureObject toFACH_USER_NUM, and set the ThresholdRangeValue parameter to adjust the light-loadstate threshold for the number of users on the FACH.

Configure the light-load state thresholds for the number of users on the DCH.

l Run the RNC MML command MOD UIOPTATOMRULE. In this substep, set theAtomRuleID parameter to 20 and set the ThresholdRangeValue parameter to adjust thelight-load state triggering threshold for the number of users on the DCH.



36

l Run the RNC MML command MOD UIOPTATOMRULE. In this substep, set theAtomRuleID parameter to 21 and set the ThresholdRangeValue parameter to adjust thelight-load state release threshold for the number of users on the DCH.

Step 2 (Optional) Activate or deactivate the functions involved in this feature based on the descriptionsin 3.2.1 Decision Conditions for Different Congestion States and 3.2.2 AutomaticCongestion Relief Actions.

l Run the RNC MML command LST UIOPTRULE to query the RuleID of a specificfunction. The following table lists the intelligent optimization function ID of each function.

Function Intelligent Optimization FunctionID

N300/T300 parameter optimization 1

RRC connection release wait time parameteroptimization

2

Cell HSUPA user number parameteroptimization

3

Uplink initial access rate 5

Downlink initial access rate 21

Inter-RAT redirection 6

Inter-RAT DRD 7

CS RAB setup optimization 8

Preemption algorithm 9

CS RRC preemption 10

CS services preempting PS BE serviceresources

11

High SPU CPU load preemption 12

P2D CS preemption 13

Increasing number of UEs on FACH to 60 14

P2D in FACH congestion 16

RLC transmission suspension after DL F2D 17

RLC transmission suspension after UL 4A 18

TVM-based P2D 19

F2P state transition through physical channelreconfiguration

20

RxLevMin parameter optimization 22

HSDPA user number restriction cancellation 23



37

Function Intelligent Optimization FunctionID

Cell-level static CAPS flow control 24

Cell-level dynamic CAPS flow control 25

DPCH pilot power adjustment 26

Rules of a function can be queried based on the name or ID of the function. For example, theoutput of the following command shows that the RuleID of the N300/T300 parameteroptimization function is 501, 502, 503, and 504: LST UIOPTRULE: LstType=BY_ID,IOptiFunctionID=1

l Run the RNC MML command ACT UIOPTRULE or DEA UIOPTRULE to activate ordeactivate rules of a function. A function is deactivated when all the rules of the function aredeactivated. Pay attention to the following when activating or deactivating rules of a function:All the rules of a function must be activated or deactivated simultaneously. You cannotactivate or deactivate a single rule of a function. For example, you need to activate rules 501,502, 503, and 504 simultaneously to activate the N300/T300 parameter optimization functionand you need to deactivate rules 501, 502, 503, and 504 simultaneously to deactivate theN300/T300 parameter optimization function.

NOTE

l All the functions listed in the preceding table except CS services preempting PS BE service resources,cell-level static CAPS flow control, cell-level dynamic CAPS flow control are activated by default.You need to perform this step only when one of these functions needs to be activated or a functionneeds to be deactivated after this feature is enabled.

l Check whether related parameter settings are proper when activating the cell-level static CAPS flowcontrol function. For detailed operations, see section "Cell Static CAPS Control" in Flow ControlFeature Parameter Description.

l When activating the cell-level dynamic CAPS flow control function, run the SETUNBMPHYPARA command with the FlowCtrlSwitch(BSC6900,BSC6910) parameter set toHIGH_PRI_RRC_DYN_CAPS_FC_OPT_SWITCH to raise the priority of CS services. Fordetailed operations, see section "Cell Dynamic CAPS Control" in Flow Control Feature ParameterDescription.

Step 3 Run the RNC MML command ADD UCELLALGOSWITCH or MODUCELLALGOSWITCH and select the ADAP_CELL_CONGEST_SWITCH check boxunder the AdapAlgoSwitch parameter.

----End

MML Command Examples// (Optional) Configuring the second-level congestion thresholds for the downlink non-HSPA power loadMOD UIOPTATOMRULE: AtomRuleID=1, MeasureObjType=CELL, MeasureObject=DL_NONH_PWR_STATUS, ThresholdEnumValue=DL_HEAVY_STATE; MOD UIOPTATOMRULE: AtomRuleID=4, MeasureObjType=CELL, MeasureObject=DL_NONH_PWR_STATUS, ThresholdEnumValue=DL_LOADED_STATE;

// (Optional) Configuring the normal state threshold for the downlink non-HSPA power loadMOD UIOPTATOMRULE: AtomRuleID=15, MeasureObjType=CELL,



38

MeasureObject=DL_NONH_PWR_STATUS, ThresholdEnumValue=DL_NORMAL_STATE;

// (Optional) Configuring the first-level congestion thresholds for the downlink non-HSPA power load MOD UIOPTATOMRULE: AtomRuleID=7, MeasureObjType=CELL, MeasureObject=DL_NONH_PWR_STATUS, ThresholdEnumValue=DL_LOADED_STATE;MOD UIOPTATOMRULE: AtomRuleID=8, MeasureObjType=CELL, MeasureObject=DL_NONH_PWR_STATUS, ThresholdEnumValue=DL_NORMAL_STATE;

// (Optional) Configuring the congestion thresholds for the uplink loadMOD UIOPTATOMRULE: AtomRuleID=2, MeasureObjType=CELL, MeasureObject=UL_ACTUAL_LOAD, ThresholdRangeValue=70;MOD UIOPTATOMRULE: AtomRuleID=5, MeasureObjType=CELL, MeasureObject=UL_ACTUAL_LOAD, ThresholdRangeValue=40; MOD UIOPTATOMRULE: AtomRuleID=6, MeasureObjType=CELL, MeasureObject=DCH_USER_NUM, ThresholdRangeValue=25; MOD UIOPTATOMRULE: AtomRuleID=3, MeasureObjType=CELL, MeasureObject=DCH_USER_NUM, ThresholdRangeValue=35;

MOD UIOPTATOMRULE: AtomRuleID=16, MeasureObjType=CELL, MeasureObject=ROT, ThresholdRangeValue=130; MOD UIOPTATOMRULE: AtomRuleID=17, MeasureObjType=CELL, MeasureObject=ROT, ThresholdRangeValue=70;MOD UIOPTATOMRULE: AtomRuleID=18, MeasureObjType=CELL, MeasureObject=RTWP, ThresholdRangeValue=-850; MOD UIOPTATOMRULE: AtomRuleID=19, MeasureObjType=CELL, MeasureObject=RTWP, ThresholdRangeValue=-950;

// (Optional) Configuring the normal state threshold for the uplink non-HSPA power load MOD UIOPTATOMRULE: AtomRuleID=11, MeasureObjType=CELL, MeasureObject=UL_ACTUAL_LOAD, ThresholdRangeValue=40; MOD UIOPTATOMRULE: AtomRuleID=12, MeasureObjType=CELL, MeasureObject=DCH_USER_NUM, ThresholdRangeValue=25;

// (Optional) Configuring the state thresholds for the number of users on the FACHMOD UIOPTATOMRULE: AtomRuleID=13, MeasureObjType=CELL, MeasureObject=FACH_USER_NUM, ThresholdRangeValue=15;MOD UIOPTATOMRULE: AtomRuleID=14, MeasureObjType=CELL, MeasureObject=FACH_USER_NUM, ThresholdRangeValue=5;

// (Optional) Configuring the light-load state thresholds for the number of users on the DCHMOD UIOPTATOMRULE: AtomRuleID=20, MeasureObjType=CELL, MeasureObject=DCH_USER_NUM, ThresholdRangeValue=20; MOD UIOPTATOMRULE: AtomRuleID=21, MeasureObjType=CELL, MeasureObject=DCH_USER_NUM, ThresholdRangeValue=10;

//Turning on the Adaptive Algorithm Switch MOD UCELLALGOSWITCH: CellId=xxx, AdapAlgoSwitch=ADAP_CELL_CONGEST_SWITCH-1;

Using the CME

NOTE

When configuring the Automatic Congestion Handler feature on the CME, perform a single configurationfirst, and then perform a batch modification if required. Configure the parameters of a single object beforea batch modification. Perform a batch modification before logging out of the parameter setting interface.

Step 1 Configure a single object on the CME.

Set parameters on the CME according to the operation sequence in Table 6-1. For instructionson how to perform the CME single configuration, see CME Single Configuration OperationGuide.



39

Step 2 (Optional) Modify objects in batches on the CME.

To modify multiple objects (such as the RNC/NodeB/cell/carrier/external UMTS cell) in

batches, click on the CME to start the batch modification wizard. For instructions on howto perform a batch modification through the CME batch modification center, press F1 whilerunning the wizard to obtain online help.

Table 6-1 Configuring the parameter on the CME

SN MO NE Parameter Name Parameter ID Configurable in CMEBatchModification Center

1 UCELLALGOSWITCH

RNC AdaptiveAlgorithm Switch(Select theADAP_CELL_CONGEST_SWITCH check boxunder theAdapAlgoSwitchparameter)

AdapAlgoSwitch(BSC6900,BSC6910)

Yes

----End

6.4.6 Activation ObservationTo check whether this feature has been enabled, perform the following steps to query self-organizing network (SON) logs:

Step 1 On the U2000 client, choose SON > SON Log.

Step 2 On the displayed SON Log tab page, click Query SON Log. Set Log Category to UMTSAutomatic Congestion Handler log and Event Name to All. In addition, specify Event SourceObject and Time Period as required.

Step 3 Click Synchronize in the bottom right corner of the SON Log tab page.

Step 4 Click Query. If there is a Cell-level Parameter Adjustment record in the specified time period,this feature has taken effect.

----End

After this feature is activated, operating information about this feature will be recorded in SONlogs.

6.4.7 Deactivation



40

Using MML CommandsRun the RNC MML command ADD UCELLALGOSWITCH or MODUCELLALGOSWITCH and clear the ADAP_CELL_CONGEST_SWITCH check boxunder the AdapAlgoSwitch parameter.

MML Command Examples//Disabling the Automatic Congestion Handler featureCellId=xxx, AdapAlgoSwitch=ADAP_CELL_CONGEST_SWITCH-0;

Using the CMENOTE

When configuring the Automatic Congestion Handler feature on the CME, perform a single configurationfirst, and then perform a batch modification if required. Configure the parameters of a single object beforea batch modification. Perform a batch modification before logging out of the parameter setting interface.

Step 1 Configure a single object on the CME.

Set parameters on the CME according to the operation sequence in Table 6-2. For instructionson how to perform the CME single configuration, see CME Single Configuration OperationGuide.

Step 2 (Optional) Modify objects in batches on the CME.

To modify multiple objects (such as the RNC/NodeB/cell/carrier/external UMTS cell) in

batches, click on the CME to start the batch modification wizard. For instructions on howto perform a batch modification through the CME batch modification center, press F1 whilerunning the wizard to obtain online help.

Table 6-2 Configuring the parameter on the CME

SN MO NE Parameter Name Parameter ID Configurable in CMEBatchModification Center

1 UCELLALGOSWITCH

RNC Adaptive AlgorithmSwitch(Clear theADAP_CELL_CONGEST_SWITCH checkbox under theAdapAlgoSwitchparameter )

AdapAlgoSwitch(BSC6900,BSC6910)

Yes

----End

6.4.8 ReconfigurationNone



41

6.5 Performance MonitoringCheck the values of counters and KPIs in the following table to monitor gains provided by thisfeature.

Counter/KPI Description

VS.CellDCHUEs Number of UEs in CELL_DCH State for Cell

VS.MeanTCP.NonHS Mean Non-HSDPA Transmitted Carrier Powerfor Cell

VS.MeanTCP Mean Transmitted Power of Carrier for Cell

VS.MeanULActualPowerLoad Mean Uplink Actual Cell Load

VS.MeanRTWP Mean Power of Totally Received Bandwidth forCell

VS.FACH.DTCH.CONG.TIME Congestion Duration of DTCH Carried overFACHs for Cell

VS.CellFACHUEs Number of UEs in CELL_FACH State for Cell

VS.CellFACHUEs.MAX Maximum Count of UE in CELL_FACH

VS.HSUPA.UE.Mean.Cell Average Number of HSUPA UEs in a Cell

VS.HSUPA.MeanChThroughput.Total-Bytes

Number of Total Bytes Received in Uplink ofHSUPA MAC-d Flow for Cell

VS.SRNCIubBytesPSR99Conv.RxVS.SRNCIubBytesPSR99Str.RxVS.SRNCIubBytesPSR99Int.RxVS.SRNCIubBytesPSR99Bkg.RxVS.CRNCIubBytesPSR99.CCH.Rx

Number of UL Bytes of PS R99 Services overIub for Cell

VS.HSDPA.MeanChThroughput.Total-Bytes

Number of Total Bytes Sent in Downlink ofHSDPA MAC-d Flow for Cell

VS.SRNCIubBytesPSR99Bkg.TxVS.SRNCIubBytesPSR99Conv.TxVS.SRNCIubBytesPSR99Int.TxVS.SRNCIubBytesPSR99Str.TxVS.CRNCIubBytesPSR99.CCH.Tx

Number of DL Bytes of PS R99 Services overIub for Cell

AMR RAB Setup Success Ratio KPI

Number of users performing CS services(cell)

KPI

PS call drop rate KPI



42

l To evaluate the changes in the congestion state of a cell, compare the values of theVS.CellDCHUEs, VS.MeanTCP.NonHS, VS.MeanULActualPowerLoad,VS.MeanRTWP, and VS.CellFACHUEs counters before and after this feature is activated.

l When the function of Cell HSUPA user number parameter optimization is enabled in a cellwhere the uplink power load is congested, if the value of the VS.HSUPA.UE.Max.Cellcounter is greater than half the value of the MaxHsupaUserNum counter before the featureactivation, the value of the VS.HSUPA.UE.Mean.Cell counter decreases after the featureactivation.

l When CS Preference functions such as CS RAB setup optimization and CS servicespreempting PS BE service resources are enabled in a congested cell, if CS admission failsbefore this feature is activated, the AMR RAB setup success rate and number of CS usersincrease after this feature is activated. However, the PS call drop rate also increases whenPS or CS preemption occurs.

l When the maximum number of FACH users is greater than or equal to 30 before this featureis activated and the function of increasing number of UEs on FACH to 60 is enabled, thevalue of the VS.CellFACHUEs counter increases after the feature activation.

Changes in the cell load are as follows:

l After this feature is activated in a congested cell, the cell load decreases and resource usageincreases. In addition, the cell traffic increases when there are sufficient service demands.The uplink and downlink cell loads are indicated by the VS.MeanRTWP andVS.MeanTCP.NonHS counters, respectively.

NOTE

If the value of the VS.MeanRTWP counter does not decrease, the reason may be that the total uplink PStraffic volume (the sum of uplink PS R99 traffic volume over the Iub and the HSUPA traffic volume)slightly increases.

If the value of the VS.MeanTCP counter does not decrease, the reason may be that the total downlink PStraffic volume (the sum of downlink PS R99 traffic volume over the Iub and the HSDPA traffic volume)slightly increases.

6.6 Parameter OptimizationThe probability that this feature takes effect can be adjusted by adjusting the thresholds forcongestion decision conditions. For details about how to adjust these thresholds, see section6.4.5 Activation.

6.7 TroubleshootingNone



43

7 Parameters

Table 7-1 Parameter description

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

AdapAlgoSwitch

BSC6900

ADDUCELLALGOSWITCHMODUCELLALGOSWITCH

WRFD-160214WRFD-160253WRFD-150232

Load-basedIntelligent StateTransitionAutomaticCongestionControlMultibandDirectRetryBasedon UELocation

Meaning: 1. ADAP_CELL_CONGEST_SWITCH(Automatic Congestion Handler Switch): Whether theautomatic congestion Handler function is enabled.When this switch is set to on, the automatic congestionHandler function identifies the occurrence of andrelieves congestion. 2.INTELL_STATE_TRANS_ON_LOAD_SWITCH(Load-based Intelligent State Transition Switch):Whether the load-based intelligent state transitionfunction is enabled. When this switch is set to on, theRNC switches the state of heavy-load UEs based on thesettings of parameters for heavy-load state transitions.3. PARA_FOR_UELOC_DRD_ADJ_SWITCH (UELocation-based DRD Parameter Change Switch):Whether the path loss threshold for UEs at the cell centeris dynamically adjusted based on the DRD success rate.When this switch is set to ON, the RNC dynamicallyadjusts the value of "PathlossThdForCenter" based onthe success rate of UE location-based multi-DRD.When the DRD success rate is greater than a predefinedthreshold, the RNC increases the value of"PathlossThdForCenter". When the DRD success rateis lower than a predefined threshold, the RNC decreasesthe value of "PathlossThdForCenter". When this switchis set to off, the value of "PathlossThdForCenter" isautomatically changed to that before the adjustment.GUI Value Range:ADAP_CELL_CONGEST_SWITCH,INTELL_STATE_TRANS_ON_LOAD_SWITCH,PARA_FOR_UELOC_DRD_ADJ_SWITCH

WCDMA RANAutomatic Congestion Handler Feature ParameterDescription 7 Parameters


44

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

Unit: NoneActual Value Range:ADAP_CELL_CONGEST_SWITCH,INTELL_STATE_TRANS_ON_LOAD_SWITCH,PARA_FOR_UELOC_DRD_ADJ_SWITCHDefault Value: ADAP_CELL_CONGEST_SWITCH:0,INTELL_STATE_TRANS_ON_LOAD_SWITCH:0,PARA_FOR_UELOC_DRD_ADJ_SWITCH:0



45

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

AdapAlgoSwitch

BSC6910


WRFD-160214WRFD-160253WRFD-150232

Load-basedIntelligent StateTransitionAutomaticCongestionControlMultibandDirectRetryBasedon UELocation

Meaning: 1. ADAP_CELL_CONGEST_SWITCH(Automatic Congestion Handler Switch): Whether theautomatic congestion Handler function is enabled.When this switch is set to on, the automatic congestionHandler function identifies the occurrence of andrelieves congestion. 2.INTELL_STATE_TRANS_ON_LOAD_SWITCH(Load-based Intelligent State Transition Switch):Whether the load-based intelligent state transitionfunction is enabled. When this switch is set to on, theRNC switches the state of heavy-load UEs based on thesettings of parameters for heavy-load state transitions.3. PARA_FOR_UELOC_DRD_ADJ_SWITCH (UELocation-based DRD Parameter Change Switch):Whether the path loss threshold for UEs at the cell centeris dynamically adjusted based on the DRD success rate.When this switch is set to ON, the RNC dynamicallyadjusts the value of "PathlossThdForCenter" based onthe success rate of UE location-based multi-DRD.When the DRD success rate is greater than a predefinedthreshold, the RNC increases the value of"PathlossThdForCenter". When the DRD success rateis lower than a predefined threshold, the RNC decreasesthe value of "PathlossThdForCenter". When this switchis set to off, the value of "PathlossThdForCenter" isautomatically changed to that before the adjustment.GUI Value Range:ADAP_CELL_CONGEST_SWITCH,INTELL_STATE_TRANS_ON_LOAD_SWITCH,PARA_FOR_UELOC_DRD_ADJ_SWITCHUnit: NoneActual Value Range:ADAP_CELL_CONGEST_SWITCH,INTELL_STATE_TRANS_ON_LOAD_SWITCH,PARA_FOR_UELOC_DRD_ADJ_SWITCHDefault Value: ADAP_CELL_CONGEST_SWITCH:0,INTELL_STATE_TRANS_ON_LOAD_SWITCH:0,PARA_FOR_UELOC_DRD_ADJ_SWITCH:0



46

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

N300 BSC6900

ADDUCELLIDLEMODETIMERMODUCELLIDLEMODETIMER

WRFD-010101

3GPPR9Specifications

Meaning: Maximum number of RRC ConnectionRequest message retransmissions.GUI Value Range: 0~7Unit: sActual Value Range: 0~7Default Value: 3

N300 BSC6910

ADDUCELLIDLEMODETIMERMODUCELLIDLEMODETIMER

WRFD-010101


Meaning: Maximum number of RRC ConnectionRequest message retransmissions.GUI Value Range: 0~7Unit: sActual Value Range: 0~7Default Value: 3

LowRrcConnRejWaitTmr

BSC6900

ADDUCELLSTATETIMERMODUCELLSTATETIMER

WRFD-010510

3.4/6.8/13.6/27.2KbpsRRCConnection andRadioAccessBearerEstablishmentandRelease

Meaning: Waiting time carried in low-priority RRCConnection Reject messages. This parameter specifiesthe minimum time a UE has to wait before sending asecond RRC Connection Request message. An RRCConnection Request message is considered as a high-priority one when the message is initiated in the CSdomain and carries the cause value "OriginatingConversational Call", "Terminating ConversationalCall", or "Emergency Call." All other RRC ConnectionRequest messages are low-priority ones.GUI Value Range: 0~15Unit: sActual Value Range: 0~15Default Value: 4



47

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

LowRrcConnRejWaitTmr

BSC6910

ADDUCELLSTATETIMERMODUCELLSTATETIMER

WRFD-010510

3.4/6.8/13.6/27.2KbpsRRCConnection andRadioAccessBearerEstablishmentandRelease

Meaning: Waiting time carried in low-priority RRCConnection Reject messages. This parameter specifiesthe minimum time a UE has to wait before sending asecond RRC Connection Request message. An RRCConnection Request message is considered as a high-priority one when the message is initiated in the CSdomain and carries the cause value "OriginatingConversational Call", "Terminating ConversationalCall", or "Emergency Call." All other RRC ConnectionRequest messages are low-priority ones.GUI Value Range: 0~15Unit: sActual Value Range: 0~15Default Value: 4

ConnectFailRrcRedirSwitch

BSC6900

ADDUCELLDRDMODUCELLDRD

WRFD-020120WRFD-02040003

ServiceSteeringandLoadSharingin RRCConnectionSetupInterSystemRedirect

Meaning: Whether to allow RRC redirection after anRRC connection admission failure. When this switch isset to on, RRC redirection is allowed after an RRCconnection admission failure. When this switch is set tooff, RRC redirection is prohibited after an RRCconnection admission failure.GUI Value Range: OFF, Only_To_Inter_Frequency,Allowed_To_Inter_RATUnit: NoneActual Value Range: OFF, Only_To_Inter_Frequency,Allowed_To_Inter_RATDefault Value: Only_To_Inter_Frequency

ConnectFailRrcRedirSwitch

BSC6910

ADDUCELLDRDMODUCELLDRD

WRFD-020120WRFD-02040003

ServiceSteeringandLoadSharingin RRCConnectionSetupInterSystemRedirect

Meaning: Whether to allow RRC redirection after anRRC connection admission failure. When this switch isset to on, RRC redirection is allowed after an RRCconnection admission failure. When this switch is set tooff, RRC redirection is prohibited after an RRCconnection admission failure.GUI Value Range: OFF, Only_To_Inter_Frequency,Allowed_To_Inter_RATUnit: NoneActual Value Range: OFF, Only_To_Inter_Frequency,Allowed_To_Inter_RATDefault Value: Only_To_Inter_Frequency



48

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

InterRATDRDSwitch

BSC6900

ADDUCELLINTERRATDRMODUCELLINTERRATDR

None None Meaning: Whether to support inter-RAT DRD. Whenthis switch is set to ON, inter-RAT DRD is supported.If a UE cannot access an intra-RAT cell, the UE caninitiate access requests to inter-RAT cells. When thisswitch is set to OFF, inter-RAT DRD is not supportedand UEs cannot initiate access requests to inter-RATcells.GUI Value Range: OFF, ONUnit: NoneActual Value Range: OFF, ONDefault Value: OFF

InterRATDRDSwitch

BSC6910

ADDUCELLINTERRATDRMODUCELLINTERRATDR

None None Meaning: Whether to support inter-RAT DRD. Whenthis switch is set to ON, inter-RAT DRD is supported.If a UE cannot access an intra-RAT cell, the UE caninitiate access requests to inter-RAT cells. When thisswitch is set to OFF, inter-RAT DRD is not supportedand UEs cannot initiate access requests to inter-RATcells.GUI Value Range: OFF, ONUnit: NoneActual Value Range: OFF, ONDefault Value: OFF



49

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

MaxUpaUserNumDynAdjFactor

BSC6900

ADDUCELLCACMODUCELLCAC

WRFD-01061202WRFD-010670WRFD-020101WRFD-010639WRFD-01061211WRFD-010634

HSUPAAdmissionControl128HSUPAUsersper CellAdmissionControl96HSUPAUsersper Cell20HSUPAUsersper Cell60HSUPAUsersper Cell

Meaning: Factor for dynamically adjusting themaximum number of HSUPA users in a cell. The RNCdetermines the number of HSUPA users in a cell beforeadmitting a new user. If the number of HSUPA usersadmitted to a cell is smaller than the rounded-downvalue of this parameter x "MaxHsupaUserNum", theRNC proceeds with the admission decision operation.Otherwise, the RNC rejects the admission requests ofnew HSUPA users. The value of this parameter isautomatically adjusted when the Automatic CongestionHandler (ACH) algorithm is enabled, that is, theADAP_CELL_CONGEST_SWITCH under the"AdapAlgoSwitch" parameter in the "ADDUCELLALGOSWITCH" command is set to on. Thisparameter is an advanced parameter and manualmodification of the parameter value is notrecommended. If you need to modify the value of thisparameter, perform the modification with the assistanceof Huawei technical support.

GUI Value Range: 0~100

Unit: %

Actual Value Range: 0~100

Default Value: 100



50

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

MaxUpaUserNumDynAdjFactor

BSC6910


WRFD-01061202WRFD-010670WRFD-020101WRFD-010639WRFD-01061211WRFD-010634

HSUPAAdmissionControl128HSUPAUsersper CellAdmissionControl96HSUPAUsersper Cell20HSUPAUsersper Cell60HSUPAUsersper Cell

Meaning: Factor for dynamically adjusting themaximum number of HSUPA users in a cell. The RNCdetermines the number of HSUPA users in a cell beforeadmitting a new user. If the number of HSUPA usersadmitted to a cell is smaller than the rounded-downvalue of this parameter x "MaxHsupaUserNum", theRNC proceeds with the admission decision operation.Otherwise, the RNC rejects the admission requests ofnew HSUPA users. The value of this parameter isautomatically adjusted when the Automatic CongestionHandler (ACH) algorithm is enabled, that is, theADAP_CELL_CONGEST_SWITCH under the"AdapAlgoSwitch" parameter in the "ADDUCELLALGOSWITCH" command is set to on. Thisparameter is an advanced parameter and manualmodification of the parameter value is notrecommended. If you need to modify the value of thisparameter, perform the modification with the assistanceof Huawei technical support.

GUI Value Range: 0~100

Unit: %

Actual Value Range: 0~100

Default Value: 100

UlBeTraffInitBitrate

BSC6900

ADDUCELLFRCMODUCELLFRC

WRFD-021101

DynamicChannelConfigurationControl(DCCC)

Meaning: Uplink initial access rate of PS backgroundor interactive services. When the DCCC function takeseffect, the uplink initial access rate is used if themaximum uplink rate is higher than the uplink initialaccess rate.GUI Value Range: D8, D16, D32, D64, D128, D144,D256, D384Unit: kbit/sActual Value Range: 8, 16, 32, 64, 128, 144, 256, 384Default Value: D64



51

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

UlBeTraffInitBitrate

BSC6910


WRFD-021101

DynamicChannelConfigurationControl(DCCC)

Meaning: Uplink initial access rate of PS backgroundor interactive services. When the DCCC function takeseffect, the uplink initial access rate is used if themaximum uplink rate is higher than the uplink initialaccess rate.GUI Value Range: D8, D16, D32, D64, D128, D144,D256, D384Unit: kbit/sActual Value Range: 8, 16, 32, 64, 128, 144, 256, 384Default Value: D64

DlBeTraffInitBitrate

BSC6900


WRFD-021101WRFD-010507

DynamicChannelConfigurationControl(DCCC)RateNegotiation atAdmissionControl

Meaning: Downlink initial access rate of PSbackground or interactive services. When the DCCCfunction takes effect, the downlink initial access rate isused if the maximum downlink rate is higher than thedownlink initial access rate.GUI Value Range: D8, D16, D32, D64, D128, D144,D256, D384Unit: kbit/sActual Value Range: 8, 16, 32, 64, 128, 144, 256, 384Default Value: D64

DlBeTraffInitBitrate

BSC6910


WRFD-021101WRFD-010507

DynamicChannelConfigurationControl(DCCC)RateNegotiation atAdmissionControl

Meaning: Downlink initial access rate of PSbackground or interactive services. When the DCCCfunction takes effect, the downlink initial access rate isused if the maximum downlink rate is higher than thedownlink initial access rate.GUI Value Range: D8, D16, D32, D64, D128, D144,D256, D384Unit: kbit/sActual Value Range: 8, 16, 32, 64, 128, 144, 256, 384Default Value: D64



52

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

CSRABCacOptSwitch

BSC6900


WRFD-020101

AdmissionControl

Meaning: Whether resource allocation is optimizedduring CS RAB setups. When this parameter is set toON, the RNC allocates power resources, coderesources, channel element (CE) resources during CSRAB setups based on the loose CAC algorithm. Thissetting increases the CS service setup success rate.When this parameter is set to OFF, the RNC does notallocate resources during CS RAB setups based on theloose CAC algorithm.GUI Value Range: OFF, ONUnit: NoneActual Value Range: ON, OFFDefault Value: OFF

CSRABCacOptSwitch

BSC6910


WRFD-020101

AdmissionControl

Meaning: Whether resource allocation is optimizedduring CS RAB setups. When this parameter is set toON, the RNC allocates power resources, coderesources, channel element (CE) resources during CSRAB setups based on the loose CAC algorithm. Thissetting increases the CS service setup success rate.When this parameter is set to OFF, the RNC does notallocate resources during CS RAB setups based on theloose CAC algorithm.GUI Value Range: OFF, ONUnit: NoneActual Value Range: ON, OFFDefault Value: OFF



53

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

PreemptEnhSwitch

BSC6900

SETUQUEUEPREEMPT

WRFD-010505

Queuingand Pre-Emption

Meaning: 1.PREEMPT_ENH_NODEB_PREEMPT_CE_SWITCH: Whether to activate CE-based user preemption on theNodeB side. If this switch is turned on, the RNC sendsthe NodeB a user list containing users that can bepreempted. The NodeB selects users for preemptionbased on the consumed CEs. 2.PREEMPT_ENH_HSSCCH_PREEMPT_SF_SWITCH: Whether channel codes can be obtained bypreempting SF resources of R99 users when HS-SCCHchannels are being established.When this switch isturned on, the RNC preempts SF resources occupied byR99 users to set up HS-SCCHs.When the switch isturned off, the RNC searches for vacant SF resources toset up HS-SCCHs in scenarios where SF resources areoccupied by R99 users. 3.PREEMPT_ENH_CSRRC_PREEMPT_PS_SWITCH: Whether RRC connection requests for CS servicespreempt resources for PS services when cell resourcesare insufficient.When this switch is turned on, CSservices preempt resources occupied by PS services toaccess the cell, if RRC connection requests for CSservices fail due to insufficient cell resources.When thisswitch is turned off, RRC connection requests for CSservices cannot initiate a preemption for resourcesoccupied by PS services. 4.PREEMPT_ENH_CSRAB_PREEMPT_PS_SWITCH: Whether CS access requests preempt resources for PSservices when cell resources are insufficient.When thisswitch is turned on, CS services preempt resourcesoccupied by PS services to access the cell, if CS accessrequests fail due to insufficient cell resources.When thisswitch is turned off, CS access requests cannot initiatea preemption for resources occupied by PS services. 5.PREEMPT_ENH_CPU_HIGHLOAD_CTRL_SWITCH: Whether preemption is allowed when the CPU loadis high. When this switch is turned on, a user checks theCPU load when attempting to preempt other users'resources due to insufficient cell resources and cannotpreempt other users' resources when the CPU usage ishigher than 70%. When this switch is turned off, the userdoes not consider the CPU load when preempting otherusers' resources. 6.PREEMPT_ENH_RRC_RAB_COMBINE_SWITCH:Whether to combine radio resources of UEs that haveRRC connections and UEs that are allocated RABswhen the preempting UE is allowed to preempt radio



54

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

resources of multiple UEs. If this switch is turned on,the RNC combines radio resources of these two typesof UEs when preemption is required due to insufficientradio resources. If this switch is turned off, thepreempting UE can preempt radio resources of only UEsthat have RRC connections or UEs that have beenallocated RABs. 7.PREEMPT_ENH_PT_USER_PREEMPT_ENH_SWITCH: Whether to support the preemption enhancementfunction for platinum users. When this switch is set toon, platinum users can preempt resources of other usersif cell admission fails during the DRD, channel fallback,or rate re-negotiation during admission controlprocedure. When this switch is set to on, platinum usersperform the same actions as common users. That is,DRD, channel fallback, rate re-negotiation duringadmission control, and preemption are performed insequence. 8.PREEMPT_ENH_DRNC_CS_RAB_PREEMPT_SWITCH: Whether to trigger the preemption functionduring a CS RAB setup under the DRNC. When thisswitch is set to on, preemption is triggered during a CSRAB setup under the DRNC. When this switch is set tooff, preemption is not triggered during a CS RAB setupunder the DRNC. 9.PREEMPT_ENH_CS_PREEMPT_WHEN_OLC_SWITCH: Whether users processing CS and push to talk(PTT) services can preempt resources when a cell is inthe overload control (OLC) state. When this switch isset to on for a cell in the OLC state, users processing CSand PTT services can preempt resources if the CSservice or PTT service admission fails. When thisswitch is set to off for a cell in the OLC state, only usersprocessing emergency calls and platinum users canpreempt resources. Users processing common CSservices and PTT services cannot preempt 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_SWIT



55

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

CH,PREEMPT_ENH_RRC_RAB_COMBINE_SWITCH,PREEMPT_ENH_PT_USER_PREEMPT_ENH_SWITCH,PREEMPT_ENH_DRNC_CS_RAB_PREEMPT_SWITCH,PREEMPT_ENH_CS_PREEMPT_WHEN_OLC_SWITCHUnit: NoneActual 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,PREEMPT_ENH_RRC_RAB_COMBINE_SWITCH,PREEMPT_ENH_PT_USER_PREEMPT_ENH_SWITCH,PREEMPT_ENH_DRNC_CS_RAB_PREEMPT_SWITCH,PREEMPT_ENH_CS_PREEMPT_WHEN_OLC_SWITCHDefault Value:PREEMPT_ENH_NODEB_PREEMPT_CE_SWITCH:0,PREEMPT_ENH_HSSCCH_PREEMPT_SF_SWITCH:1,PREEMPT_ENH_CSRRC_PREEMPT_PS_SWITCH:0,PREEMPT_ENH_CSRAB_PREEMPT_PS_SWITCH:0,PREEMPT_ENH_CPU_HIGHLOAD_CTRL_SWITCH:1,PREEMPT_ENH_RRC_RAB_COMBINE_SWITCH:1,PREEMPT_ENH_PT_USER_PREEMPT_ENH_SWITCH:0,PREEMPT_ENH_DRNC_CS_RAB_PREEMPT_SWITCH:0,PREEMPT_ENH_CS_PREEMPT_WHEN_OLC_SWITCH:0



56

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

PreemptEnhSwitch

BSC6910

SETUQUEUEPREEMPT

WRFD-010505


Meaning: 1.PREEMPT_ENH_NODEB_PREEMPT_CE_SWITCH: Whether to activate CE-based user preemption on theNodeB side. If this switch is turned on, the RNC sendsthe NodeB a user list containing users that can bepreempted. The NodeB selects users for preemptionbased on the consumed CEs. 2.PREEMPT_ENH_HSSCCH_PREEMPT_SF_SWITCH: Whether channel codes can be obtained bypreempting SF resources of R99 users when HS-SCCHchannels are being established.When this switch isturned on, the RNC preempts SF resources occupied byR99 users to set up HS-SCCHs.When the switch isturned off, the RNC searches for vacant SF resources toset up HS-SCCHs in scenarios where SF resources areoccupied by R99 users. 3.PREEMPT_ENH_CSRRC_PREEMPT_PS_SWITCH: Whether RRC connection requests for CS servicespreempt resources for PS services when cell resourcesare insufficient.When this switch is turned on, CSservices preempt resources occupied by PS services toaccess the cell, if RRC connection requests for CSservices fail due to insufficient cell resources.When thisswitch is turned off, RRC connection requests for CSservices cannot initiate a preemption for resourcesoccupied by PS services. 4.PREEMPT_ENH_CSRAB_PREEMPT_PS_SWITCH: Whether CS access requests preempt resources for PSservices when cell resources are insufficient.When thisswitch is turned on, CS services preempt resourcesoccupied by PS services to access the cell, if CS accessrequests fail due to insufficient cell resources.When thisswitch is turned off, CS access requests cannot initiatea preemption for resources occupied by PS services. 5.PREEMPT_ENH_CPU_HIGHLOAD_CTRL_SWITCH: Whether preemption is allowed when the CPU loadis high. When this switch is turned on, a user checks theCPU load when attempting to preempt other users'resources due to insufficient cell resources and cannotpreempt other users' resources when the CPU usage ishigher than 70%. When this switch is turned off, the userdoes not consider the CPU load when preempting otherusers' resources. 6.PREEMPT_ENH_RRC_RAB_COMBINE_SWITCH:Whether to combine radio resources of UEs that haveRRC connections and UEs that are allocated RABswhen the preempting UE is allowed to preempt radio



57

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

resources of multiple UEs. If this switch is turned on,the RNC combines radio resources of these two typesof UEs when preemption is required due to insufficientradio resources. If this switch is turned off, thepreempting UE can preempt radio resources of only UEsthat have RRC connections or UEs that have beenallocated RABs. 7.PREEMPT_ENH_PT_USER_PREEMPT_ENH_SWITCH: Whether to support the preemption enhancementfunction for platinum users. When this switch is set toon, platinum users can preempt resources of other usersif cell admission fails during the DRD, channel fallback,or rate re-negotiation during admission controlprocedure. When this switch is set to on, platinum usersperform the same actions as common users. That is,DRD, channel fallback, rate re-negotiation duringadmission control, and preemption are performed insequence. 8.PREEMPT_ENH_DRNC_CS_RAB_PREEMPT_SWITCH: Whether to trigger the preemption functionduring a CS RAB setup under the DRNC. When thisswitch is set to on, preemption is triggered during a CSRAB setup under the DRNC. When this switch is set tooff, preemption is not triggered during a CS RAB setupunder the DRNC. 9.PREEMPT_ENH_CS_PREEMPT_WHEN_OLC_SWITCH: Whether users processing CS and push to talk(PTT) services can preempt resources when a cell is inthe overload control (OLC) state. When this switch isset to on for a cell in the OLC state, users processing CSand PTT services can preempt resources if the CSservice or PTT service admission fails. When thisswitch is set to off for a cell in the OLC state, only usersprocessing emergency calls and platinum users canpreempt resources. Users processing common CSservices and PTT services cannot preempt 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_SWIT



58

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

CH,PREEMPT_ENH_RRC_RAB_COMBINE_SWITCH,PREEMPT_ENH_PT_USER_PREEMPT_ENH_SWITCH,PREEMPT_ENH_DRNC_CS_RAB_PREEMPT_SWITCH,PREEMPT_ENH_CS_PREEMPT_WHEN_OLC_SWITCHUnit: NoneActual 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,PREEMPT_ENH_RRC_RAB_COMBINE_SWITCH,PREEMPT_ENH_PT_USER_PREEMPT_ENH_SWITCH,PREEMPT_ENH_DRNC_CS_RAB_PREEMPT_SWITCH,PREEMPT_ENH_CS_PREEMPT_WHEN_OLC_SWITCHDefault Value:PREEMPT_ENH_NODEB_PREEMPT_CE_SWITCH:0,PREEMPT_ENH_HSSCCH_PREEMPT_SF_SWITCH:1,PREEMPT_ENH_CSRRC_PREEMPT_PS_SWITCH:0,PREEMPT_ENH_CSRAB_PREEMPT_PS_SWITCH:0,PREEMPT_ENH_CPU_HIGHLOAD_CTRL_SWITCH:1,PREEMPT_ENH_RRC_RAB_COMBINE_SWITCH:1,PREEMPT_ENH_PT_USER_PREEMPT_ENH_SWITCH:0,PREEMPT_ENH_DRNC_CS_RAB_PREEMPT_SWITCH:0,PREEMPT_ENH_CS_PREEMPT_WHEN_OLC_SWITCH:0



59

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

PreemptAlgoSwitch

BSC6900

ADDUCELLQUEUEPREEMPTMODUCELLQUEUEPREEMPT

WRFD-010660

WRFD-010661

WRFD-010662

WRFD-010663

WRFD-010665

WRFD-010505

WRFD-01066004

WRFD-01061606

WRFD-01066002

WRFD-01066003

WRFD-01066001

WRFD-01061601

WRFD-01061603

WRFD-01061602

WRFD-01061605

WRFD-01061604

MBMSPhase 2

MBMSover Iur

Dynamic PowerEstimation forMTCH

MSCHScheduling

MBMSChannelAudience RatingStatistics


Inter-FrequencyNeighboring CellSelection forMBMSPTPUsers

StreamingServiceonMBMS

MBMSP2P overHSDPA

MBMSAdmissionEnhancement

Meaning: Whether preemption is supported. When thisswitch is turned on, the RNC allows privileged users orservices to preempt cell resources from the users orservices with the preempted attributes and lowerpriority in the case of cell resource insufficiency. Whenthis switch is turned off, the RNC terminates the servicefor the user due to the failure in cell resource application.GUI Value Range: OFF, ONUnit: NoneActual Value Range: OFF, ONDefault Value: OFF



60

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

WRFD-010616WRFD-01061608WRFD-010626WRFD-010627

MBMSEnhancedBroadcast ModeMBMSBroadcast ModeMBMSLoadControlMBMSAdmissionControlMBMSTransportResourceManagementMBMSSoft/SelectiveCombiningMBMSIntroductionPackage16/32/64/128KbpsChannelRate onMBMSMBMSFLC(FrequencyLayerConverg



61

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

ence)/FLD(FrequencyLayerDispersion)FACHTransmissionSharingforMBMS



62

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

PreemptAlgoSwitch

BSC6910


WRFD-010660

WRFD-010661

WRFD-010662

WRFD-010663

WRFD-010665

WRFD-010505

WRFD-01066004

WRFD-01061606

WRFD-01066002

WRFD-01066003

WRFD-01066001

WRFD-01061601

WRFD-01061603

WRFD-01061602

WRFD-01061605

WRFD-01061604

MBMSPhase 2

MBMSover Iur

Dynamic PowerEstimation forMTCH

MSCHScheduling

MBMSChannelAudience RatingStatistics


Inter-FrequencyNeighboring CellSelection forMBMSPTPUsers

StreamingServiceonMBMS

MBMSP2P overHSDPA

MBMSAdmissionEnhancement

Meaning: Whether preemption is supported. When thisswitch is turned on, the RNC allows privileged users orservices to preempt cell resources from the users orservices with the preempted attributes and lowerpriority in the case of cell resource insufficiency. Whenthis switch is turned off, the RNC terminates the servicefor the user due to the failure in cell resource application.GUI Value Range: OFF, ONUnit: NoneActual Value Range: OFF, ONDefault Value: OFF



63

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

WRFD-010616WRFD-01061608WRFD-010626WRFD-010627

MBMSEnhancedBroadcast ModeMBMSBroadcast ModeMBMSLoadControlMBMSAdmissionControlMBMSTransportResourceManagementMBMSSoft/SelectiveCombiningMBMSIntroductionPackage16/32/64/128KbpsChannelRate onMBMSMBMSFLC(FrequencyLayerConverg



64

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

ence)/FLD(FrequencyLayerDispersion)FACHTransmissionSharingforMBMS

CsP2DPreemptSwitch

BSC6900


WRFD-010505


Meaning: Whether a UE can preempt resourcesoccupied by PS BE services after the cell resourceadmission fails under the following conditions: -The UEmoves from CELL_PCH or URA_PCH to CELL_DCH(P2D). -The RRC_CELL_UPDATE message sent bythe UE contains the cause value of OriginatingConversational Call or Terminating ConversationalCall.GUI Value Range: OFF, ONUnit: NoneActual Value Range: OFF, ONDefault Value: OFF

CsP2DPreemptSwitch

BSC6910


WRFD-010505


Meaning: Whether a UE can preempt resourcesoccupied by PS BE services after the cell resourceadmission fails under the following conditions: -The UEmoves from CELL_PCH or URA_PCH to CELL_DCH(P2D). -The RRC_CELL_UPDATE message sent bythe UE contains the cause value of OriginatingConversational Call or Terminating ConversationalCall.GUI Value Range: OFF, ONUnit: NoneActual Value Range: OFF, ONDefault Value: OFF



65

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

NBMFACHCTRLALGOSWITCH

BSC6900

ADDUCELLFACHCONGCTRLMODUCELLFACHCONGCTRL

WRFD-010202

UE StateinConnected Mode(CELL-DCH,CELL-PCH,URA-PCH,CELL-FACH)

Meaning: FACH_60_USER_SWITCH: Maximumnumber of UEs that can simultaneously use FACHs totransmit user-plane data. When this switch is turned on,a maximum of 60 UEs can simultaneously use FACHsto transmit user-plane data in a cell. If some UEs areprocessing signaling procedures, more than 60 UEs canbe carried on the FACHs. When this switch is turnedoff, a maximum of 30 UEs can simultaneously useFACHs to transmit user-plane data in a cell. If some UEsare processing signaling procedures, more than 30 UEscan be carried on the FACHs.GUI Value Range: FACH_60_USER_SWITCH(FACH_60_USER_SWITCH)Unit: NoneActual Value Range: FACH_60_USER_SWITCHDefault Value: FACH_60_USER_SWITCH:1

NBMFACHCTRLALGOSWITCH

BSC6910


WRFD-010202


Meaning: FACH_60_USER_SWITCH: Maximumnumber of UEs that can simultaneously use FACHs totransmit user-plane data. When this switch is turned on,a maximum of 60 UEs can simultaneously use FACHsto transmit user-plane data in a cell. If some UEs areprocessing signaling procedures, more than 60 UEs canbe carried on the FACHs. When this switch is turnedoff, a maximum of 30 UEs can simultaneously useFACHs to transmit user-plane data in a cell. If some UEsare processing signaling procedures, more than 30 UEscan be carried on the FACHs.GUI Value Range: FACH_60_USER_SWITCH(FACH_60_USER_SWITCH)Unit: NoneActual Value Range: FACH_60_USER_SWITCHDefault Value: FACH_60_USER_SWITCH:1



66

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

CORRMFACHCTRLALGOSWITCH

BSC6900


WRFD-010202


Meaning: 1.PERFENH_TX_INTERRUPT_AFT_TRIG_SWITCH: Switch for including the Tx interruption after triggerIE in the uplink 4A traffic volume measurement controlmessage. When this switch is turned on, the uplink 4Atraffic volume measurement control message from RNCincludes the Tx interruption after trigger IE for UEs thatare in the CELL_FACH or enhanced CELL_FACHstate and processing PS BE services. The value of thisIE can be changed by running the "SETUUESTATETRANS" command. 2.CMP_F2P_PROCESS_OPTIMIZATION_SWITCH:Switch for optimizing the procedure for theCELL_FACH-to-CELL_PCH-or-URA_PCH statetransition. When this switch is set to on, F2P statetransition is performed through the physical channelreconfiguration procedure.When this switch is set to off,F2P state transition is performed through the RBreconfiguration procedure.GUI Value Range:PERFENH_TX_INTERRUPT_AFT_TRIG_SWITCH(PERFENH_TX_INTERRUPT_AFT_TRIG_SWITCH),CMP_F2P_PROCESS_OPTIMIZATION_SWITCH(CMP_F2P_PROCESS_OPTIMIZATION_SWITCH)Unit: NoneActual Value Range:PERFENH_TX_INTERRUPT_AFT_TRIG_SWITCH, CMP_F2P_PROCESS_OPTIMIZATION_SWITCHDefault Value:PERFENH_TX_INTERRUPT_AFT_TRIG_SWITCH:0,CMP_F2P_PROCESS_OPTIMIZATION_SWITCH:0



67

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

CORRMFACHCTRLALGOSWITCH

BSC6910


WRFD-010202


Meaning: 1.PERFENH_TX_INTERRUPT_AFT_TRIG_SWITCH: Switch for including the Tx interruption after triggerIE in the uplink 4A traffic volume measurement controlmessage. When this switch is turned on, the uplink 4Atraffic volume measurement control message from RNCincludes the Tx interruption after trigger IE for UEs thatare in the CELL_FACH or enhanced CELL_FACHstate and processing PS BE services. The value of thisIE can be changed by running the "SETUUESTATETRANS" command. 2.CMP_F2P_PROCESS_OPTIMIZATION_SWITCH:Switch for optimizing the procedure for theCELL_FACH-to-CELL_PCH-or-URA_PCH statetransition. When this switch is set to on, F2P statetransition is performed through the physical channelreconfiguration procedure.When this switch is set to off,F2P state transition is performed through the RBreconfiguration procedure.GUI Value Range:PERFENH_TX_INTERRUPT_AFT_TRIG_SWITCH(PERFENH_TX_INTERRUPT_AFT_TRIG_SWITCH),CMP_F2P_PROCESS_OPTIMIZATION_SWITCH(CMP_F2P_PROCESS_OPTIMIZATION_SWITCH)Unit: NoneActual Value Range:PERFENH_TX_INTERRUPT_AFT_TRIG_SWITCH, CMP_F2P_PROCESS_OPTIMIZATION_SWITCHDefault Value:PERFENH_TX_INTERRUPT_AFT_TRIG_SWITCH:0,CMP_F2P_PROCESS_OPTIMIZATION_SWITCH:0



68

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

RRFACHCTRLALGOSWITCH

BSC6900


WRFD-010202


Meaning: 1. RNC_F2D_RLC_SUSPEND_SWITCH(Suspend RLC Data Transmission After Event 4A):Whether the RNC suspends the RLC data transmissionduring F2D state transitions and restores the RLC datatransmission after receiving an RB ReconfigurationComplete message or after switching the UE to theCELL_FACH state in this cell.When this switch is setto on, the RNC supports the suspension of RLC datatransmission.When this switch is set to off, the RNCdoes not support the suspension of RLC datatransmission. 2. P2D_SWITCH(P2D State TransitionSwitch): Whether the RNC switches a UE in this cellfrom the CELL_PCH or URA_PCH state to theCELL_DCH state after receiving a CELL UPDATEmessage with the cause value "uplink data transmission"or "paging response" from the UE in the scenario wherethe cell FACH resources are limited or where the cellupdate is triggered by CS service but the DCCH iscongested.When this switch is set to on, the RNCswitches the UE from the CELL_PCH or URA_PCHstate to the CELL_DCH state in the precedingscenario.When this switch is set to off, the RNCswitches the UE from the CELL_PCH or URA_PCHstate to the CELL_FACH state. 3.RNC_TVM_BASED_P2D_SWITCH(TVM-basedDynamic P2D Switch): Whether the RNC triggers aP2D state transition for a UE in this cell when the RNCreceives from the UE a CELL UPDATE message withthe Traffic volume indicator IE set to TRUE or receivesfrom the CN a dynamic traffic volume measurementvalue that meets a specified threshold.When this switchis set to on, the RNC triggers the P2D state transitionfor UEs in the preceding scenario.When this switch isset to off, the RNC does not trigger the P2D statetransition for UEs in the preceding scenario.GUI Value Range:RNC_F2D_RLC_SUSPEND_SWITCH(RNC_F2D_RLC_SUSPEND_SWITCH),P2D_SWITCH(P2D_SWITCH),RNC_TVM_BASED_P2D_SWITCH(RNC_TVM_BASED_P2D_SWITCH)Unit: NoneActual Value Range:RNC_F2D_RLC_SUSPEND_SWITCH,P2D_SWITCH, RNC_TVM_BASED_P2D_SWITCH



69

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

Default Value:RNC_F2D_RLC_SUSPEND_SWITCH:0,P2D_SWITCH:0,RNC_TVM_BASED_P2D_SWITCH:0



70

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

RRFACHCTRLALGOSWITCH

BSC6910


WRFD-010202


Meaning: 1. RNC_F2D_RLC_SUSPEND_SWITCH(Suspend RLC Data Transmission After Event 4A):Whether the RNC suspends the RLC data transmissionduring F2D state transitions and restores the RLC datatransmission after receiving an RB ReconfigurationComplete message or after switching the UE to theCELL_FACH state in this cell.When this switch is setto on, the RNC supports the suspension of RLC datatransmission.When this switch is set to off, the RNCdoes not support the suspension of RLC datatransmission. 2. P2D_SWITCH(P2D State TransitionSwitch): Whether the RNC switches a UE in this cellfrom the CELL_PCH or URA_PCH state to theCELL_DCH state after receiving a CELL UPDATEmessage with the cause value "uplink data transmission"or "paging response" from the UE in the scenario wherethe cell FACH resources are limited or where the cellupdate is triggered by CS service but the DCCH iscongested.When this switch is set to on, the RNCswitches the UE from the CELL_PCH or URA_PCHstate to the CELL_DCH state in the precedingscenario.When this switch is set to off, the RNCswitches the UE from the CELL_PCH or URA_PCHstate to the CELL_FACH state. 3.RNC_TVM_BASED_P2D_SWITCH(TVM-basedDynamic P2D Switch): Whether the RNC triggers aP2D state transition for a UE in this cell when the RNCreceives from the UE a CELL UPDATE message withthe Traffic volume indicator IE set to TRUE or receivesfrom the CN a dynamic traffic volume measurementvalue that meets a specified threshold.When this switchis set to on, the RNC triggers the P2D state transitionfor UEs in the preceding scenario.When this switch isset to off, the RNC does not trigger the P2D statetransition for UEs in the preceding scenario.GUI Value Range:RNC_F2D_RLC_SUSPEND_SWITCH(RNC_F2D_RLC_SUSPEND_SWITCH),P2D_SWITCH(P2D_SWITCH),RNC_TVM_BASED_P2D_SWITCH(RNC_TVM_BASED_P2D_SWITCH)Unit: NoneActual Value Range:RNC_F2D_RLC_SUSPEND_SWITCH,P2D_SWITCH, RNC_TVM_BASED_P2D_SWITCH



71

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

Default Value:RNC_F2D_RLC_SUSPEND_SWITCH:0,P2D_SWITCH:0,RNC_TVM_BASED_P2D_SWITCH:0

Qrxlevmin

BSC6900

ADDUEXT3GCELLMODUEXT3GCELL

WRFD-010802WRFD-020126WRFD-010801

IntraRNCCellUpdate

Meaning: Minimum required RX thresholdcorresponding to the CPICH RSCP. A UE can camp ona cell only if the measured CPICH RSCP is greater thanthe value of this parameter. Setting this parameter basedon the setting of "Qqualmin". If this parameter is not set,the UE uses the value of "Qrxlevmin" set in "ADDUCELLSELRESEL" for the cell. Usually, thisparameter is not set. For details, see 3GPP TS 25.331.GUI Value Range: -58~-13Unit: 2dBmActual Value Range: -58~-13Default Value: None

Qrxlevmin

BSC6910

ADDUEXT3GCELLMODUEXT3GCELL

WRFD-010802WRFD-020126WRFD-010801

IntraRNCCellUpdate

Meaning: Minimum required RX thresholdcorresponding to the CPICH RSCP. A UE can camp ona cell only if the measured CPICH RSCP is greater thanthe value of this parameter. Setting this parameter basedon the setting of "Qqualmin". If this parameter is not set,the UE uses the value of "Qrxlevmin" set in "ADDUCELLSELRESEL" for the cell. Usually, thisparameter is not set. For details, see 3GPP TS 25.331.GUI Value Range: -58~-13Unit: 2dBmActual Value Range: -58~-13Default Value: None



72

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

MaxHsdpaUserNum

BSC6900


WRFD-010654WRFD-01061003WRFD-010653WRFD-020101WRFD-160208WRFD-160209WRFD-01061112

128HSDPAUsersper CellHSDPAAdmissionControl96HSDPAUsersper CellAdmissionControl160HSPAUsersper Cell192HSPAUsersper CellHSDPADRD

Meaning: Maximum number of users supported by theHSDPA channel. The user in this parameter refers to theuser with services on the HSDPA channel, regardless ofthe number of RABs carried on the HSDPA channel.Maximum HSDPA user number cannot exceed theHSDPA capability of the NodeB product, In practice,the value can be set based on the cell type and therichness of the available HSDPA power and coderesources.GUI Value Range: 0~192Unit: NoneActual Value Range: 0~192Default Value: 64



73

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

MaxHsdpaUserNum

BSC6910


WRFD-010654WRFD-01061003WRFD-010653WRFD-020101WRFD-160208WRFD-160209WRFD-01061112

128HSDPAUsersper CellHSDPAAdmissionControl96HSDPAUsersper CellAdmissionControl160HSPAUsersper Cell192HSPAUsersper CellHSDPADRD

Meaning: Maximum number of users supported by theHSDPA channel. The user in this parameter refers to theuser with services on the HSDPA channel, regardless ofthe number of RABs carried on the HSDPA channel.Maximum HSDPA user number cannot exceed theHSDPA capability of the NodeB product, In practice,the value can be set based on the cell type and therichness of the available HSDPA power and coderesources.GUI Value Range: 0~192Unit: NoneActual Value Range: 0~192Default Value: 64

CellCallShockSwitch

BSC6900


WRFD-020101WRFD-040100

AdmissionControlFlowControl

Meaning: Whether cell-level flow control based ontraffic growth is enabled. When this switch is turned on,the RNC controls the flow for RRC connection setuprequests in the cell to ensure that sufficient resources areallocated for predefined services are handled and thetraffic on the network is stable, if system resources areused to handle numerous RRC connection setuprequests because of sudden heavy traffic. If this switchis turned off, the RNC does not control the flow for RRCconnection setup requests.GUI Value Range: OFF, ONUnit: NoneActual Value Range: OFF, ONDefault Value: OFF



74

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

CellCallShockSwitch

BSC6910


WRFD-020101WRFD-040100


Meaning: Whether cell-level flow control based ontraffic growth is enabled. When this switch is turned on,the RNC controls the flow for RRC connection setuprequests in the cell to ensure that sufficient resources areallocated for predefined services are handled and thetraffic on the network is stable, if system resources areused to handle numerous RRC connection setuprequests because of sudden heavy traffic. If this switchis turned off, the RNC does not control the flow for RRCconnection setup requests.GUI Value Range: OFF, ONUnit: NoneActual Value Range: OFF, ONDefault Value: OFF

CELLKPITOCAPS

BSC6900

ADDUCELLFCALGOPARAMODUCELLFCALGOPARA

WRFD-020103WRFD-040100

InterFrequency LoadBalanceFlowControl

Meaning: Whether to activate the cell-level dynamicCAPS flow control algorithm based on the ratio of RRCconnection setup failures. When the switch is turned on,flow control is triggered if the ratio of RRC connectionsetup failures is higher than or equal to the value of"RejectKPICTHD"; flow control is stopped if the ratioof RRC connection setup failures is lower than or equalto the value of "RejectKPIRTHD". When flow controlis triggered, the number of allowed RRC connectionrequests per second in the cell decreases based on thevalue of "KPIstepdownpercentage". When flow controlis stopped, the number of allowed RRC connectionrequests per second in the cell increases based on thevalue of "KPIstepuppercentage". The number of RRCconnection requests does not change once the cell flowcontrol status becomes stable.GUI Value Range: OFF, ONUnit: NoneActual Value Range: OFF, ONDefault Value: OFF



75

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

CELLKPITOCAPS

BSC6910

ADDUCELLFCALGOPARAMODUCELLFCALGOPARA

WRFD-020103WRFD-040100

InterFrequency LoadBalanceFlowControl

Meaning: Whether to activate the cell-level dynamicCAPS flow control algorithm based on the ratio of RRCconnection setup failures. When the switch is turned on,flow control is triggered if the ratio of RRC connectionsetup failures is higher than or equal to the value of"RejectKPICTHD"; flow control is stopped if the ratioof RRC connection setup failures is lower than or equalto the value of "RejectKPIRTHD". When flow controlis triggered, the number of allowed RRC connectionrequests per second in the cell decreases based on thevalue of "KPIstepdownpercentage". When flow controlis stopped, the number of allowed RRC connectionrequests per second in the cell increases based on thevalue of "KPIstepuppercentage". The number of RRCconnection requests does not change once the cell flowcontrol status becomes stable.GUI Value Range: OFF, ONUnit: NoneActual Value Range: OFF, ONDefault Value: OFF

PilotPOOptiSwitch

BSC6900

ADDUCELLPCSWITCHMODUCELLPCSWITCH

WRFD-150230

DPCHPilotPowerAdjustment

Meaning: Whether the pilot power offset (PO)optimization algorithm takes effect. The pilot POoptimization algorithm sets the pilot PO and pilot bitnumber to a value less than the actual configurations inthe case of cell downlink non-HSPA power congestionso as to relieve cell power congestion.GUI Value Range: OFF, ONUnit: NoneActual Value Range: OFF, ONDefault Value: OFF



76

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

PreemptEnhSwitch

BSC6900


WRFD-010505


Meaning: 1.PREEMPT_ENH_CSRRC_PREEMPT_PS_SWITCH: Whether CS RRC connection requests can preemptresources for PS services when cell resources areinsufficient. When this switch is turned on, CS RRCconnection requests preempt resources occupied by PSservices, if CS RRC connection requests fail due toinsufficient cell resources. When this switch is turnedoff, CS RRC connection requests cannot preemptresources occupied by PS services. 2.PREEMPT_ENH_CSRAB_PREEMPT_PS_SWITCH: Whether CS RAB setup requests can preemptresources for PS services when cell resources areinsufficient. When this switch is turned on, CS RABsetup requests preempt resources occupied by PSservices, if CS RAB setup requests fail due toinsufficient cell resources. When this switch is turnedoff, CS RAB setup requests cannot preempt resourcesoccupied by PS services. 3.PREEMPT_ENH_CPU_HIGHLOAD_CTRL_SWITCH: Whether preemption is allowed when the CPU loadis high. When this switch is turned on, the RNC checksthe CPU load when a UE attempts to preempt otherusers' resources due to insufficient cell resources andcannot preempt other users' resources when the CPUusage is higher than 70%. When this switch is turnedoff, the RNC does not consider the CPU load when aUE attempts to preempt other users' resources.GUI Value Range:PREEMPT_ENH_CSRRC_PREEMPT_PS_SWITCH,PREEMPT_ENH_CSRAB_PREEMPT_PS_SWITCH,PREEMPT_ENH_CPU_HIGHLOAD_CTRL_SWITCHUnit: NoneActual Value Range:PREEMPT_ENH_CSRRC_PREEMPT_PS_SWITCH,PREEMPT_ENH_CSRAB_PREEMPT_PS_SWITCH,PREEMPT_ENH_CPU_HIGHLOAD_CTRL_SWITCHDefault Value:PREEMPT_ENH_CSRRC_PREEMPT_PS_SWITCH:



77

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

0,PREEMPT_ENH_CSRAB_PREEMPT_PS_SWITCH:0,PREEMPT_ENH_CPU_HIGHLOAD_CTRL_SWITCH:1



78

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

PreemptEnhSwitch

BSC6910


WRFD-010505


Meaning: 1.PREEMPT_ENH_CSRRC_PREEMPT_PS_SWITCH: Whether CS RRC connection requests can preemptresources for PS services when cell resources areinsufficient. When this switch is turned on, CS RRCconnection requests preempt resources occupied by PSservices, if CS RRC connection requests fail due toinsufficient cell resources. When this switch is turnedoff, CS RRC connection requests cannot preemptresources occupied by PS services. 2.PREEMPT_ENH_CSRAB_PREEMPT_PS_SWITCH: Whether CS RAB setup requests can preemptresources for PS services when cell resources areinsufficient. When this switch is turned on, CS RABsetup requests preempt resources occupied by PSservices, if CS RAB setup requests fail due toinsufficient cell resources. When this switch is turnedoff, CS RAB setup requests cannot preempt resourcesoccupied by PS services. 3.PREEMPT_ENH_CPU_HIGHLOAD_CTRL_SWITCH: Whether preemption is allowed when the CPU loadis high. When this switch is turned on, the RNC checksthe CPU load when a UE attempts to preempt otherusers' resources due to insufficient cell resources andcannot preempt other users' resources when the CPUusage is higher than 70%. When this switch is turnedoff, the RNC does not consider the CPU load when aUE attempts to preempt other users' resources.GUI Value Range:PREEMPT_ENH_CSRRC_PREEMPT_PS_SWITCH,PREEMPT_ENH_CSRAB_PREEMPT_PS_SWITCH,PREEMPT_ENH_CPU_HIGHLOAD_CTRL_SWITCHUnit: NoneActual Value Range:PREEMPT_ENH_CSRRC_PREEMPT_PS_SWITCH,PREEMPT_ENH_CSRAB_PREEMPT_PS_SWITCH,PREEMPT_ENH_CPU_HIGHLOAD_CTRL_SWITCHDefault Value:PREEMPT_ENH_CSRRC_PREEMPT_PS_SWITCH:



79

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

0,PREEMPT_ENH_CSRAB_PREEMPT_PS_SWITCH:0,PREEMPT_ENH_CPU_HIGHLOAD_CTRL_SWITCH:1



80

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

CfgSwitch

BSC6900

SETUCORRMALGOSWITCH

WRFD-010699WRFD-010698WRFD-010693WRFD-010694WRFD-010697WRFD-010696WRFD-151209WRFD-150250WRFD-010101WRFD-010510WRFD-011500WRFD-010686WRFD-010687WRFD-010684WRFD-010683WRFD-01061502WRFD-01061503WRFD-01061501

DC-HSDPA+MIMOHSPA+Uplink11.5Mbit/s perUserDL64QAM+MIMOUL16QAME-DPCCHBoostingDC-HSDPAMacro-MicroDC-HSDPA3C-HSDPA3GPPR9Specifications3.4/6.8/13.6/27.2KbpsRRCConnection andRadioAccessBearerEstablishmentandReleasePDCPHeader

Meaning: Channel configuration strategy switch group.1.CFG_DC_MIMO_DYNAMIC_SELECT_SWITCH:When this switch is turned on, the RNC determineswhether to enable the DC-HSDPA or MIMO feature fora newly admitted user based on the cell load and thenumber of HSDPA users. 2.CFG_DL_BLIND_DETECTION_SWITCH: Whenthe switch is on, the DL blind transport format detectionfunction is used for single SRB and AMR+SRB bearers.Note that the UE is only required to support the blindtransport format stipulated in 3GPP 25.212 section4.3.1. 3. CFG_EDPCCH_BOOSTING_SWITCH:When the switch is on, Boosting can be configured forthe HSUPA service. 4. CFG_FREE_USER_SWITCH:When this switch is turned on, special handling for freeaccess user is enabled. 5.CFG_HSDPA_64QAM_SWITCH: When the switch ison, 64QAM can be configured for the HSDPA service.6. CFG_HSDPA_DCMIMO_SWITCH: When thisswitch is turned on, DC+MIMO can be configured forthe HSDPA service. 7. CFG_HSDPA_DC_SWITCH:When the switch is on, DC can be configured for theHSDPA service. 8. CFG_HSDPA_MIMO_SWITCH:When the switch is on, MIMO can be configured for theHSDPA service. 9.CFG_HSDPA_MIMO_WITH_64QAM_SWITCH:When the switch is on and the switches for 64QAM andMIMO are on, 64QAM+MIMO can be configured forthe HSDPA service 10.CFG_HSDPA_4C_MIMO_SWITCH: Whether the4C-HSDPA+MIMO feature is allowed for HSDPAservices. When this switch is turned on, the MC-HSDPA+MIMO (4C-HSDPA+MIMO and 3C-HSDPA+MIMO) feature is allowed for HSDPA services. 11.CFG_HSDPA_4C_SWITCH: Whether the 3C-HSDPAor 4C-HSDPA feature is allowed for HSDPA services.When this switch is turned on, the 3C-HSDPA or 4C-HSDPA feature is allowed for HSDPA services. 12.CFG_HSDPA_DBMIMO_SWITCH: Whether the DB-HSDPA+MIMO feature is allowed for HSDPAservices. When this switch is turned on, the DB-HSDPA+MIMO feature is allowed for HSDPA services. 13.CFG_HSDPA_DB_SWITCH: Whether the DB-HSDPA feature is allowed for HSDPA services. Whenthis switch is turned on, the DB-HSDPA feature isallowed for HSDPA services. 14.



81

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

WRFD-01061504WRFD-150207WRFD-150227WRFD-02060504WRFD-150223WRFD-150209WRFD-010615WRFD-010617WRFD-020134

Compression(RFC2507)

CPC -DTX /DRX

CPC -HS-SCCHlessoperation

2x2MIMO

Downlink64QAM

Combination ofOne CSServiceand TwoPSServices

Combination ofThreePSServices

Combination ofTwo PSServices

Combination ofOne CSServiceandThreePSServices

4C-HSDPA

CFG_HSPA_DTX_DRX_SWITCH: When the switchis on, DTX_DRX can be configured for the HSPAservice. 15.CFG_HSPA_HSSCCH_LESS_OP_SWITCH: Whenthe switch is on, HS-SCCH Less Operation can beconfigured for the HSPA service. 16.CFG_HSUPA_16QAM_SWITCH: When the switch ison, 16QAM can be configured for the HSUPA service.17. CFG_HSUPA_DC_SWITCH: When this switch isturned on, the DC-HSUPA function can be enabled forHSUPA services. 18.CFG_IMS_SUPPORT_SWITCH: When the switch ison and the IMS license is activated, the RNC supportsIMS signaling. 19.CFG_LOSSLESS_DLRLC_PDUSIZECHG_SWITCH: Whether the UTRAN supports the function oflossless RLC PDU size change. When this switch isturned on, downlink channel reconfiguration betweenthe DCH and HS-DSCH does not cause RLC PDU sizechange which results in packet loss. This function takeseffect only on the UEs enabled with this function. Fordetails about this function, see 3GPP TS 25.331. 20.CFG_LOSSLESS_RELOC_CFG_SWITCH: Whenthe switch is on and the UE supports lossless relocation,the RNC configures lossless relocation for PDCPparameters if the requirements of RLC mode, discardmode, and sequential submission are met. Then, losslessrelocation is used for the UE. 21.CFG_MULTI_RAB_SWITCH: When the switch is on,the RNC supports multi-RABs combinations such as2CS, 2CS+1PS, 1CS+2PS, and 2PS. 22.CFG_PDCP_IPV6_HEAD_COMPRESS_SWITCH:When the switch is on and the PDCP Headercompression license is activated, the PDCP headercompression algorithm for IPv6 is used at the RNC. 23.CFG_PDCP_RFC2507_HC_SWITCH: When theswitch is on and the PDCP Header compression licenseis activated, the PDCP RFC2507 header compressionalgorithm is used for the RNC. 24.CFG_PDCP_RFC3095_HC_SWITCH: When theswitch is on and the PDCP ROHC license is activated,the PDCP RFC3095 header compression algorithm isused for the RNC. 25. CFG_PTT_SWITCH: When thisswitch is on, the RNC identifies the PTT user based onthe QoS attributes in the RAB assignment requestmessage. Then, the PTT users are subject to specialprocessing. 26.



82

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

DB-HSDPA+MIMOLosslessSRNSRelocationMC-HSDPA+MIMODB-HSDPAMultipleRABPackage(PSRAB >=2)VoIPoverHSPA/HSPA+Push toTalk

CFG_RAB_REL_RMV_HSPAPLUS_SWITCH:When this switch is on and if an RAB release isperformed, the RNC decides whether to fall back acertain HSPA(HSPA+) feature based on therequirement of remaining traffic carried by the UE. Thatis, if an HSPA+ feature is required by the previouslyreleased RAB connection but is not required in theinitial bearer policy of the remaining traffic, the RNCfalls back the feature to save the transmission resources.The HSPA+ features that support the fallback areMIMO, 64QAM, MIMO+64QAM, UL 16QAM, DC-HSDPA, UL TTI 2ms, and DC-HSUPA. 27.CFG_RCS_E_SWITCH: Indicates whether to enablethe RCS-e (Rich Communication Suit enhanced)service that supports voice services carried in the CSdomain and video services carried in the PS domain.When this switch is turned off, the RCS-e service isdisabled. When this switch is turned on, the RCS-eservice is enabled. 28.CFG_FACH_AM_RLC_RETRANSMIT_PARA_SWITCH: Switch for AM RLC retransmission parametersfor UEs in the CELL_FACH state.When this switch isturned on, the "TimerPoll" and "NoDiscardMaxDAT"parameters in the "SET UFACHCFGPARA" commandare used for the AM RLC retransmission parametersspecific to PS services and SRBs.When this switch isturned off, the "TimerPoll" and "NoDiscardMaxDAT"parameters in the "ADD UTYPSRBRLC" command areused for the AM RLC retransmission parametersspecific to SRBs. In addition, the "TimerPoll" and"NoDiscardMaxDAT" in the "ADD UTYPRABRLC"command are used for the AM RLC retransmissionparameters specific to PS services. 29.CFG_DCH_SRB_AM_RLC_RETRANS_PARA_SWITCH: Switch controlling the configuration mode ofAM RLC SDU retransmission parameters for UEs inthe CELL_DCH state. When this switch is turned onand UEs in the CELL_DCH state, on the RNC, thetransmitting side of an AM RLC entity uses the valuesof the "TimerPoll" and "NoDiscardMaxDAT"parameters in the "ADD UTYPSRBDCHRNCRLC" or"MOD UTYPSRBDCHRNCRLC" command for SDUretransmission. When this switch is turned off or UEsnot in the CELL_DCH state, on the RNC, thetransmitting side uses the values of these parameters inthe "ADD UTYPSRBRLC" or "MOD UTYPSRBRLC"command for SDU retransmission.



83

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

GUI Value Range:CFG_DL_BLIND_DETECTION_SWITCH,CFG_HSDPA_64QAM_SWITCH,CFG_HSDPA_MIMO_SWITCH,CFG_HSPA_DTX_DRX_SWITCH,CFG_HSPA_HSSCCH_LESS_OP_SWITCH,CFG_IMS_SUPPORT_SWITCH,CFG_LOSSLESS_DLRLC_PDUSIZECHG_SWITCH, CFG_LOSSLESS_RELOC_CFG_SWITCH,CFG_MULTI_RAB_SWITCH,CFG_PDCP_IPV6_HEAD_COMPRESS_SWITCH,CFG_PDCP_RFC2507_HC_SWITCH,CFG_PDCP_RFC3095_HC_SWITCH,CFG_HSDPA_MIMO_WITH_64QAM_SWITCH,CFG_HSDPA_DC_SWITCH,CFG_HSUPA_16QAM_SWITCH,CFG_RAB_REL_RMV_HSPAPLUS_SWITCH,CFG_PTT_SWITCH,CFG_EDPCCH_BOOSTING_SWITCH,CFG_HSDPA_DCMIMO_SWITCH,CFG_FREE_USER_SWITCH,CFG_DC_MIMO_DYNAMIC_SELECT_SWITCH,CFG_HSUPA_DC_SWITCH,CFG_HSDPA_4C_MIMO_SWITCH,CFG_HSDPA_4C_SWITCH,CFG_HSDPA_DBMIMO_SWITCH,CFG_HSDPA_DB_SWITCH,CFG_RCS_E_SWITCH,CFG_FACH_AM_RLC_RETRANSMIT_PARA_SWITCH,CFG_DCH_SRB_AM_RLC_RETRANS_PARA_SWITCHUnit: NoneActual Value Range:CFG_DC_MIMO_DYNAMIC_SELECT_SWITCH,CFG_DL_BLIND_DETECTION_SWITCH,CFG_EDPCCH_BOOSTING_SWITCH,CFG_FREE_USER_SWITCH,CFG_HSDPA_64QAM_SWITCH,CFG_HSDPA_DCMIMO_SWITCH,CFG_HSDPA_DC_SWITCH,CFG_HSDPA_MIMO_SWITCH,CFG_HSDPA_MIMO_WITH_64QAM_SWITCH,CFG_HSDPA_4C_MIMO_SWITCH,CFG_HSDPA_4C_SWITCH,CFG_HSDPA_DBMIMO_SWITCH,



84

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

CFG_HSDPA_DB_SWITCH,CFG_HSPA_DTX_DRX_SWITCH,CFG_HSPA_HSSCCH_LESS_OP_SWITCH,CFG_HSUPA_16QAM_SWITCH,CFG_HSUPA_DC_SWITCH,CFG_IMS_SUPPORT_SWITCH,CFG_LOSSLESS_DLRLC_PDUSIZECHG_SWITCH, CFG_LOSSLESS_RELOC_CFG_SWITCH,CFG_MULTI_RAB_SWITCH,CFG_PDCP_IPV6_HEAD_COMPRESS_SWITCH,CFG_PDCP_RFC2507_HC_SWITCH,CFG_PDCP_RFC3095_HC_SWITCH,CFG_PTT_SWITCH,CFG_RAB_REL_RMV_HSPAPLUS_SWITCH,CFG_RCS_E_SWITCH,CFG_FACH_AM_RLC_RETRANSMIT_PARA_SWITCH,CFG_DCH_SRB_AM_RLC_RETRANS_PARA_SWITCHDefault Value:CFG_DC_MIMO_DYNAMIC_SELECT_SWITCH:0,CFG_DL_BLIND_DETECTION_SWITCH:1,CFG_EDPCCH_BOOSTING_SWITCH:0,CFG_FREE_USER_SWITCH:0,CFG_HSDPA_64QAM_SWITCH:1,CFG_HSDPA_DCMIMO_SWITCH:0,CFG_HSDPA_DC_SWITCH:0,CFG_HSDPA_MIMO_SWITCH:1,CFG_HSDPA_MIMO_WITH_64QAM_SWITCH:0,CFG_HSDPA_4C_MIMO_SWITCH:0,CFG_HSDPA_4C_SWITCH:0,CFG_HSDPA_DBMIMO_SWITCH:0,CFG_HSDPA_DB_SWITCH:0,CFG_HSPA_DTX_DRX_SWITCH:0,CFG_HSPA_HSSCCH_LESS_OP_SWITCH:0,CFG_HSUPA_16QAM_SWITCH:0,CFG_HSUPA_DC_SWITCH:0,CFG_IMS_SUPPORT_SWITCH:1,CFG_LOSSLESS_DLRLC_PDUSIZECHG_SWITCH:0,CFG_LOSSLESS_RELOC_CFG_SWITCH:0,CFG_MULTI_RAB_SWITCH:1,CFG_PDCP_IPV6_HEAD_COMPRESS_SWITCH:0,CFG_PDCP_RFC2507_HC_SWITCH:0,CFG_PDCP_RFC3095_HC_SWITCH:0,CFG_PTT_SWITCH:0,CFG_RAB_REL_RMV_HSPAPLUS_SWITCH:



85

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

0,CFG_RCS_E_SWITCH:0,CFG_FACH_AM_RLC_RETRANSMIT_PARA_SWITCH:0,CFG_DCH_SRB_AM_RLC_RETRANS_PARA_SWITCH:0



86

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

CfgSwitch

BSC6910

SETUCORRMALGOSWITCH

WRFD-010699WRFD-010698WRFD-010693WRFD-010694WRFD-010697WRFD-010696WRFD-151209WRFD-150250WRFD-010101WRFD-010510WRFD-011500WRFD-010686WRFD-010687WRFD-010684WRFD-010683WRFD-01061502WRFD-01061503WRFD-01061501

DC-HSDPA+MIMOHSPA+Uplink11.5Mbit/s perUserDL64QAM+MIMOUL16QAME-DPCCHBoostingDC-HSDPAMacro-MicroDC-HSDPA3C-HSDPA3GPPR9Specifications3.4/6.8/13.6/27.2KbpsRRCConnection andRadioAccessBearerEstablishmentandReleasePDCPHeader

Meaning: Channel configuration strategy switch group.1.CFG_DC_MIMO_DYNAMIC_SELECT_SWITCH:When this switch is turned on, the RNC determineswhether to enable the DC-HSDPA or MIMO feature fora newly admitted user based on the cell load and thenumber of HSDPA users. 2.CFG_DL_BLIND_DETECTION_SWITCH: Whenthe switch is on, the DL blind transport format detectionfunction is used for single SRB and AMR+SRB bearers.Note that the UE is only required to support the blindtransport format stipulated in 3GPP 25.212 section4.3.1. 3. CFG_EDPCCH_BOOSTING_SWITCH:When the switch is on, Boosting can be configured forthe HSUPA service. 4. CFG_FREE_USER_SWITCH:When this switch is turned on, special handling for freeaccess user is enabled. 5.CFG_HSDPA_64QAM_SWITCH: When the switch ison, 64QAM can be configured for the HSDPA service.6. CFG_HSDPA_DCMIMO_SWITCH: When thisswitch is turned on, DC+MIMO can be configured forthe HSDPA service. 7. CFG_HSDPA_DC_SWITCH:When the switch is on, DC can be configured for theHSDPA service. 8. CFG_HSDPA_MIMO_SWITCH:When the switch is on, MIMO can be configured for theHSDPA service. 9.CFG_HSDPA_MIMO_WITH_64QAM_SWITCH:When the switch is on and the switches for 64QAM andMIMO are on, 64QAM+MIMO can be configured forthe HSDPA service 10.CFG_HSDPA_4C_MIMO_SWITCH: Whether the4C-HSDPA+MIMO feature is allowed for HSDPAservices. When this switch is turned on, the MC-HSDPA+MIMO (4C-HSDPA+MIMO and 3C-HSDPA+MIMO) feature is allowed for HSDPA services. 11.CFG_HSDPA_4C_SWITCH: Whether the 3C-HSDPAor 4C-HSDPA feature is allowed for HSDPA services.When this switch is turned on, the 3C-HSDPA or 4C-HSDPA feature is allowed for HSDPA services. 12.CFG_HSDPA_DBMIMO_SWITCH: Whether the DB-HSDPA+MIMO feature is allowed for HSDPAservices. When this switch is turned on, the DB-HSDPA+MIMO feature is allowed for HSDPA services. 13.CFG_HSDPA_DB_SWITCH: Whether the DB-HSDPA feature is allowed for HSDPA services. Whenthis switch is turned on, the DB-HSDPA feature isallowed for HSDPA services. 14.



87

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

WRFD-01061504WRFD-150207WRFD-150227WRFD-02060504WRFD-150223WRFD-150209WRFD-010615WRFD-010617WRFD-020134

Compression(RFC2507)

CPC -DTX /DRX

CPC -HS-SCCHlessoperation

2x2MIMO

Downlink64QAM

Combination ofOne CSServiceand TwoPSServices

Combination ofThreePSServices

Combination ofTwo PSServices

Combination ofOne CSServiceandThreePSServices

4C-HSDPA

CFG_HSPA_DTX_DRX_SWITCH: When the switchis on, DTX_DRX can be configured for the HSPAservice. 15.CFG_HSPA_HSSCCH_LESS_OP_SWITCH: Whenthe switch is on, HS-SCCH Less Operation can beconfigured for the HSPA service. 16.CFG_HSUPA_16QAM_SWITCH: When the switch ison, 16QAM can be configured for the HSUPA service.17. CFG_HSUPA_DC_SWITCH: When this switch isturned on, the DC-HSUPA function can be enabled forHSUPA services. 18.CFG_IMS_SUPPORT_SWITCH: When the switch ison and the IMS license is activated, the RNC supportsIMS signaling. 19.CFG_LOSSLESS_DLRLC_PDUSIZECHG_SWITCH: Whether the UTRAN supports the function oflossless RLC PDU size change. When this switch isturned on, downlink channel reconfiguration betweenthe DCH and HS-DSCH does not cause RLC PDU sizechange which results in packet loss. This function takeseffect only on the UEs enabled with this function. Fordetails about this function, see 3GPP TS 25.331. 20.CFG_LOSSLESS_RELOC_CFG_SWITCH: Whenthe switch is on and the UE supports lossless relocation,the RNC configures lossless relocation for PDCPparameters if the requirements of RLC mode, discardmode, and sequential submission are met. Then, losslessrelocation is used for the UE. 21.CFG_MULTI_RAB_SWITCH: When the switch is on,the RNC supports multi-RABs combinations such as2CS, 2CS+1PS, 1CS+2PS, and 2PS. 22.CFG_PDCP_IPV6_HEAD_COMPRESS_SWITCH:When the switch is on and the PDCP Headercompression license is activated, the PDCP headercompression algorithm for IPv6 is used at the RNC. 23.CFG_PDCP_RFC2507_HC_SWITCH: When theswitch is on and the PDCP Header compression licenseis activated, the PDCP RFC2507 header compressionalgorithm is used for the RNC. 24.CFG_PDCP_RFC3095_HC_SWITCH: When theswitch is on and the PDCP ROHC license is activated,the PDCP RFC3095 header compression algorithm isused for the RNC. 25. CFG_PTT_SWITCH: When thisswitch is on, the RNC identifies the PTT user based onthe QoS attributes in the RAB assignment requestmessage. Then, the PTT users are subject to specialprocessing. 26.



88

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

DB-HSDPA+MIMOLosslessSRNSRelocationMC-HSDPA+MIMODB-HSDPAMultipleRABPackage(PSRAB >=2)VoIPoverHSPA/HSPA+Push toTalk

CFG_RAB_REL_RMV_HSPAPLUS_SWITCH:When this switch is on and if an RAB release isperformed, the RNC decides whether to fall back acertain HSPA(HSPA+) feature based on therequirement of remaining traffic carried by the UE. Thatis, if an HSPA+ feature is required by the previouslyreleased RAB connection but is not required in theinitial bearer policy of the remaining traffic, the RNCfalls back the feature to save the transmission resources.The HSPA+ features that support the fallback areMIMO, 64QAM, MIMO+64QAM, UL 16QAM, DC-HSDPA, UL TTI 2ms, and DC-HSUPA. 27.CFG_RCS_E_SWITCH: Indicates whether to enablethe RCS-e (Rich Communication Suit enhanced)service that supports voice services carried in the CSdomain and video services carried in the PS domain.When this switch is turned off, the RCS-e service isdisabled. When this switch is turned on, the RCS-eservice is enabled. 28.CFG_FACH_AM_RLC_RETRANSMIT_PARA_SWITCH: Switch for AM RLC retransmission parametersfor UEs in the CELL_FACH state.When this switch isturned on, the "TimerPoll" and "NoDiscardMaxDAT"parameters in the "SET UFACHCFGPARA" commandare used for the AM RLC retransmission parametersspecific to PS services and SRBs.When this switch isturned off, the "TimerPoll" and "NoDiscardMaxDAT"parameters in the "ADD UTYPSRBRLC" command areused for the AM RLC retransmission parametersspecific to SRBs. In addition, the "TimerPoll" and"NoDiscardMaxDAT" in the "ADD UTYPRABRLC"command are used for the AM RLC retransmissionparameters specific to PS services. 29.CFG_DCH_SRB_AM_RLC_RETRANS_PARA_SWITCH: Switch controlling the configuration mode ofAM RLC SDU retransmission parameters for UEs inthe CELL_DCH state. When this switch is turned onand UEs in the CELL_DCH state, on the RNC, thetransmitting side of an AM RLC entity uses the valuesof the "TimerPoll" and "NoDiscardMaxDAT"parameters in the "ADD UTYPSRBDCHRNCRLC" or"MOD UTYPSRBDCHRNCRLC" command for SDUretransmission. When this switch is turned off or UEsnot in the CELL_DCH state, on the RNC, thetransmitting side uses the values of these parameters inthe "ADD UTYPSRBRLC" or "MOD UTYPSRBRLC"command for SDU retransmission.



89

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

GUI Value Range:CFG_DL_BLIND_DETECTION_SWITCH,CFG_HSDPA_64QAM_SWITCH,CFG_HSDPA_MIMO_SWITCH,CFG_HSPA_DTX_DRX_SWITCH,CFG_HSPA_HSSCCH_LESS_OP_SWITCH,CFG_IMS_SUPPORT_SWITCH,CFG_LOSSLESS_DLRLC_PDUSIZECHG_SWITCH, CFG_LOSSLESS_RELOC_CFG_SWITCH,CFG_MULTI_RAB_SWITCH,CFG_PDCP_IPV6_HEAD_COMPRESS_SWITCH,CFG_PDCP_RFC2507_HC_SWITCH,CFG_PDCP_RFC3095_HC_SWITCH,CFG_HSDPA_MIMO_WITH_64QAM_SWITCH,CFG_HSDPA_DC_SWITCH,CFG_HSUPA_16QAM_SWITCH,CFG_RAB_REL_RMV_HSPAPLUS_SWITCH,CFG_PTT_SWITCH,CFG_EDPCCH_BOOSTING_SWITCH,CFG_HSDPA_DCMIMO_SWITCH,CFG_FREE_USER_SWITCH,CFG_DC_MIMO_DYNAMIC_SELECT_SWITCH,CFG_HSUPA_DC_SWITCH,CFG_HSDPA_4C_MIMO_SWITCH,CFG_HSDPA_4C_SWITCH,CFG_HSDPA_DBMIMO_SWITCH,CFG_HSDPA_DB_SWITCH,CFG_RCS_E_SWITCH,CFG_FACH_AM_RLC_RETRANSMIT_PARA_SWITCH,CFG_DCH_SRB_AM_RLC_RETRANS_PARA_SWITCHUnit: NoneActual Value Range:CFG_DC_MIMO_DYNAMIC_SELECT_SWITCH,CFG_DL_BLIND_DETECTION_SWITCH,CFG_EDPCCH_BOOSTING_SWITCH,CFG_FREE_USER_SWITCH,CFG_HSDPA_64QAM_SWITCH,CFG_HSDPA_DCMIMO_SWITCH,CFG_HSDPA_DC_SWITCH,CFG_HSDPA_MIMO_SWITCH,CFG_HSDPA_MIMO_WITH_64QAM_SWITCH,CFG_HSDPA_4C_MIMO_SWITCH,CFG_HSDPA_4C_SWITCH,CFG_HSDPA_DBMIMO_SWITCH,



90

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

CFG_HSDPA_DB_SWITCH,CFG_HSPA_DTX_DRX_SWITCH,CFG_HSPA_HSSCCH_LESS_OP_SWITCH,CFG_HSUPA_16QAM_SWITCH,CFG_HSUPA_DC_SWITCH,CFG_IMS_SUPPORT_SWITCH,CFG_LOSSLESS_DLRLC_PDUSIZECHG_SWITCH, CFG_LOSSLESS_RELOC_CFG_SWITCH,CFG_MULTI_RAB_SWITCH,CFG_PDCP_IPV6_HEAD_COMPRESS_SWITCH,CFG_PDCP_RFC2507_HC_SWITCH,CFG_PDCP_RFC3095_HC_SWITCH,CFG_PTT_SWITCH,CFG_RAB_REL_RMV_HSPAPLUS_SWITCH,CFG_RCS_E_SWITCH,CFG_FACH_AM_RLC_RETRANSMIT_PARA_SWITCH,CFG_DCH_SRB_AM_RLC_RETRANS_PARA_SWITCHDefault Value:CFG_DC_MIMO_DYNAMIC_SELECT_SWITCH:0,CFG_DL_BLIND_DETECTION_SWITCH:1,CFG_EDPCCH_BOOSTING_SWITCH:0,CFG_FREE_USER_SWITCH:0,CFG_HSDPA_64QAM_SWITCH:1,CFG_HSDPA_DCMIMO_SWITCH:0,CFG_HSDPA_DC_SWITCH:0,CFG_HSDPA_MIMO_SWITCH:1,CFG_HSDPA_MIMO_WITH_64QAM_SWITCH:0,CFG_HSDPA_4C_MIMO_SWITCH:0,CFG_HSDPA_4C_SWITCH:0,CFG_HSDPA_DBMIMO_SWITCH:0,CFG_HSDPA_DB_SWITCH:0,CFG_HSPA_DTX_DRX_SWITCH:0,CFG_HSPA_HSSCCH_LESS_OP_SWITCH:0,CFG_HSUPA_16QAM_SWITCH:0,CFG_HSUPA_DC_SWITCH:0,CFG_IMS_SUPPORT_SWITCH:1,CFG_LOSSLESS_DLRLC_PDUSIZECHG_SWITCH:0,CFG_LOSSLESS_RELOC_CFG_SWITCH:0,CFG_MULTI_RAB_SWITCH:1,CFG_PDCP_IPV6_HEAD_COMPRESS_SWITCH:0,CFG_PDCP_RFC2507_HC_SWITCH:0,CFG_PDCP_RFC3095_HC_SWITCH:0,CFG_PTT_SWITCH:0,CFG_RAB_REL_RMV_HSPAPLUS_SWITCH:



91

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

0,CFG_RCS_E_SWITCH:0,CFG_FACH_AM_RLC_RETRANSMIT_PARA_SWITCH:0,CFG_DCH_SRB_AM_RLC_RETRANS_PARA_SWITCH:0

TrafficClass

BSC6900

SETUFACHCFGPARA

WRFD-010101


Meaning: Traffic upper limit for the DCH to triggerevent 4A.GUI Value Range: SRB, PS_TRBUnit: NoneActual Value Range: SRB, PS_TRBDefault Value: None

TrafficClass

BSC6910

SETUFACHCFGPARA

WRFD-010101


Meaning: Traffic upper limit for the DCH to triggerevent 4A.GUI Value Range: SRB, PS_TRBUnit: NoneActual Value Range: SRB, PS_TRBDefault Value: None

TrchType

BSC6900

SETUFACHCFGPARA

WRFD-010101


Meaning: Transport channel type.GUI Value Range: FACH, E_FACHUnit: NoneActual Value Range: FACH, E_FACHDefault Value: None

TrchType

BSC6910

SETUFACHCFGPARA

WRFD-010101


Meaning: Transport channel type.GUI Value Range: FACH, E_FACHUnit: NoneActual Value Range: FACH, E_FACHDefault Value: None



92

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

AtomRuleID

BSC6900

ADDUIOPTATOMRULEMODUIOPTATOMRULERMVUIOPTATOMRULE

None None Meaning: ID of an atom rule.GUI Value Range: 0~65534Unit: NoneActual Value Range: 0~65534Default Value: None

AtomRuleID

BSC6910

ADDUIOPTATOMRULEMODUIOPTATOMRULERMVUIOPTATOMRULE

None None Meaning: ID of an atom rule.GUI Value Range: 0~65534Unit: NoneActual Value Range: 0~65534Default Value: None



93

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

FlowCtrlSwitch

BSC6900

SETUNBMPHYPARA

WRFD-020101WRFD-040100


Meaning: The parameter values are described asfollows: 1.CELL_UPDATE_QUEUE_FLOW_CTRL_SWITCH(Switch for Queue-based Shaping of Cell UpdateMessage): Whether to enable queue-based shaping forCELL_UPDATE messages. When this switch is turnedon, queue-based shaping for CELL_UPDATEmessages is enabled. If the CPU usage is high when aUE initiates a cell update, the RNC buffers the receivedCELL_UPDATE messages of the different priorities indifferent queues. When the CPU usage falls below athreshold, the RNC processes the buffered messages.This parameter is an advanced parameter. To modifythis parameter, contact Huawei Customer ServiceCenter for technical support. 2.HIGH_PRI_RRC_DYN_CAPS_FC_OPT_SWITCH(CAPS flow control algorithm optimization switch forRRC connections): When this switch is turned off, thenumber of allowed prioritized RRC connection setuprequests is calculated based on the following: Numberof allowed RRC connection setup requests per secondNumber of RRC connection setup requests that can beborrowed from that reserved for the next second Whenthis switch is turned on, high-priority RRC connectionsetup requests can use 20-30% more of the requestsallowed for the next second. This increases the numberof allowed high-priority RRC connection setup requestsper second.GUI Value Range:CELL_UPDATE_QUEUE_FLOW_CTRL_SWITCH(Switch for Queue-based Shaping of Cell UpdateMessage),HIGH_PRI_RRC_DYN_CAPS_FC_OPT_SWITCH(Dynamic CAPS FC Optimize Switch for High-PriorityRRC)Unit: NoneActual Value Range:CELL_UPDATE_QUEUE_FLOW_CTRL_SWITCH,HIGH_PRI_RRC_DYN_CAPS_FC_OPT_SWITCHDefault Value:CELL_UPDATE_QUEUE_FLOW_CTRL_SWITCH:0,HIGH_PRI_RRC_DYN_CAPS_FC_OPT_SWITCH:1



94

Parameter ID

NE MMLCommand

FeatureID

FeatureName

Description

FlowCtrlSwitch

BSC6910

SETUNBMPHYPARA

WRFD-020101WRFD-040100


Meaning: The parameter values are described asfollows: 1.CELL_UPDATE_QUEUE_FLOW_CTRL_SWITCH(Switch for Queue-based Shaping of Cell UpdateMessage): Whether to enable queue-based shaping forCELL_UPDATE messages. When this switch is turnedon, queue-based shaping for CELL_UPDATEmessages is enabled. If the CPU usage is high when aUE initiates a cell update, the RNC buffers the receivedCELL_UPDATE messages of the different priorities indifferent queues. When the CPU usage falls below athreshold, the RNC processes the buffered messages.This parameter is an advanced parameter. To modifythis parameter, contact Huawei Customer ServiceCenter for technical support. 2.HIGH_PRI_RRC_DYN_CAPS_FC_OPT_SWITCH(CAPS flow control algorithm optimization switch forRRC connections): When this switch is turned off, thenumber of allowed prioritized RRC connection setuprequests is calculated based on the following: Numberof allowed RRC connection setup requests per secondNumber of RRC connection setup requests that can beborrowed from that reserved for the next second Whenthis switch is turned on, high-priority RRC connectionsetup requests can use 20-30% more of the requestsallowed for the next second. This increases the numberof allowed high-priority RRC connection setup requestsper second.GUI Value Range:CELL_UPDATE_QUEUE_FLOW_CTRL_SWITCH(Switch for Queue-based Shaping of Cell UpdateMessage),HIGH_PRI_RRC_DYN_CAPS_FC_OPT_SWITCH(Dynamic CAPS FC Optimize Switch for High-PriorityRRC)Unit: NoneActual Value Range:CELL_UPDATE_QUEUE_FLOW_CTRL_SWITCH,HIGH_PRI_RRC_DYN_CAPS_FC_OPT_SWITCHDefault Value:CELL_UPDATE_QUEUE_FLOW_CTRL_SWITCH:0,HIGH_PRI_RRC_DYN_CAPS_FC_OPT_SWITCH:1



95

8 Counters

There are no specific counters associated with this feature.

WCDMA RANAutomatic Congestion Handler Feature ParameterDescription 8 Counters


96

9 Glossary

For the acronyms, abbreviations, terms, and definitions, see Glossary.

WCDMA RANAutomatic Congestion Handler Feature ParameterDescription 9 Glossary


97

10 Reference Documents

None

WCDMA RANAutomatic Congestion Handler Feature ParameterDescription 10 Reference Documents


98

automatic congestion handler(ran16.0_01)

Documents

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