Change Implementation Solution - SRB Over HSDPA

Implementation Solution for Change

Implementation

Solution for SRB over

HSDPA Activation

Prepared by: Date: 28/01/2015

Technical support website: http://support.huawei.com

Technical support hotline:Fax:

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Reviewed by: Date:

Approved by: Date:

Contents

1 Description of Change......................................................................................................4

1.1 Description of Sites...............................................................................................4

1.2 Purpose and Requirements....................................................................................4

1.3 Description of Change and Change Influence.......................................................4

1.3.1 Software Version.........................................................................................................4

1.3.2 Monitoring and Maintenance Switches......................................................................5

1.3.3 Feature Related Parameters........................................................................................5

1.4 Change Period.......................................................................................................8

1.5 Composition of Change Team and Responsibility of Team Members..................8

1.5.1 Change Team of Optus......................................................................................8

1.5.2 Huawei On-site Change Team..........................................................................9

1.5.3 Huawei Support & Guarantee Team...............................................................9

1.6 Check of Equipment Running...............................................................................9

1.7 Change Risks and Countermeasures.....................................................................9

1.8 Issue terminals....................................................................................................10



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1.9 Check Before Change.........................................................................................10

2 Operation Steps for Change............................................................................................11

2.1 Change Steps.......................................................................................................11

2.1.1 Overall Description..............................................................................................11

2.1.2 Operation Steps for Change...........................................................................11

2.1.3 Script for Change..............................................................................................12

2.2 Test and Verification...........................................................................................12

2.3 Solution for Rollback In the Case of Failure.......................................................13

2.3.1 Definition of Change Failure...........................................................................13

2.3.2 Information Collection Before Rollback......................................................13

2.3.3 Overall Description of Rollback....................................................................13

2.3.4 Rollback Steps...................................................................................................13

2.3.5 Script for Rollback............................................................................................14

2.3.6 Equipment Status Check.................................................................................14

2.3.7 Rollback Risk Analysis....................................................................................14

2.4 Change of Spare Parts and Emergency Workstation...........................................14

1.1



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1 Description of Change

1.1 Description of Sites

The target sites of activating feature WRFD-010652 SRB over HSDPA are

HSDPA enabled site.

The current SRB is setup on DCH while HSDPA service is setup, the transmit

power control (TPC) command is transmitted to the UE on an A-DPCH. After

feature WRFD-010652 SRB over HSDPA is activated, downlink SRB of a support

UE are carried on HSDPA, and the A-DPCH is replaced with the F-DPCH.

1.2 Purpose and Requirements

F-DPCH binding with SRB over HSDPA can make full use of the downlink codes

and power due to replacing many DPCHs. As a result, it make more codes and

power available for HSDPA to improve the downlink capacity. (eg., if A-DPCH

using code SF=256, F-DPCH can be shared by 10 UEs, which means max 9

SF=256 codes and power resource can be saved). Moreover, the SRB over

HSDPA is prerequisite of another feature WRFD-010686 CPC-DTX/DRX which is

planned to be introduced to production network.

This feature requires both network and handsets to support.

1.3 Description of Change and Change Influence

To enable this feature, the network performance optimization parameters and

function switches are going to be tuned to ensure the user experiences.

1.3.1 Software Version

The WRFD-010652 SRB over HSDPA feature will be enabled on SRAN9.0

software RNC and NodeBs



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Technology Testing Performed Against

UMTS-RNC MBSC V900R016C00SPC620

UMTS-NodeB MBTS V100R009C00SPC120

1.3.2 Monitoring and Maintenance Switches

After WRFD-010652 SRB over HSDPA being enabled on production network,

there are risks that PS call drop rate will increase. The following switches will be

set to recommended value to facilitate the investigation and troubleshooting

process.

Parameter Name Parameter IDRecommend Setting

Current Setting

Process Control Switch 2 PROCESSSWITCH2 RNC_PCHR_O

UTPUT_CTRL_

SWITCH-0

PCHR_OUTPUT

_CTRL_SWITC

H-0

Flow Type FlowType DCCC-1 DCCC-0

Flow Type FlowType SRB2_STAT-1 SRB2_STAT-0

1.3.3 Feature Related Parameters

The following parameters and switches strongly related to feature performance, which will

be set to recommended value.


Current Setting

Type of Channel

Preferably Carrying

Signaling RB

SrbChlType HSPA(UL_EDC

H,DL_HSDSCH)

.

HSUPA

Effective Flag of

Signaling RB Channel

Type

SrbChlTypeRrcEffectFl

ag

FALSE. FALSE

Cell Hspa Enhanced

function switch

HspaEnhSwitch E_F_DPCH_ON. E_F_DPCH_OF

F

Extra Power For Srb ExtraPowerForSrb 2 N/A

Dynamic Resource DraSwitch2 DRA_BASE_CO DRA_BASE_CO



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Current Setting

Allocation Switch 2 VER_LOAD_SR

B_H2D_SWITC

H-1

VER_LOAD_SR

B_H2D_SWITC

H-0

DL Non-HSPA Power

Initial Load State for SRB

H2D

SrbH2DNonHLoadState DL_OVERLOA

DED_STATE

DL_LOADED_S

TATE

RSCP Lower Thld for

SRB over HS-DSCH

SrbOverHsdpaRscpDow

nThd

-88 -90

RSCP Upper Thld for

SRB over HS-DSCH

SrbOverHsdpaRscpUpT

hd

-80 -80

Ec/N0 Lower Thld for

SRB over HS-DSCH

SrbOverHsdpaEcn0Dow

nThd

25 (-12dB) 29(-10dB)

Ec/N0 Upper Thld for

SRB over HS-DSCH

SrbOverHsdpaEcn0UpT

hd

31(-9dB) 35(-7dB)

HSPA Technologies

Retried by UEs

RetryCapability SRB_OVER_HS

DPA-1

SRB_OVER_HS

DPA-1

Fake EcNo FakeEcNo 25 (-12dB) 50(0.5dB)

Process Control Switch 2 PROCESSSWITCH2 RNC_PS_QUER

Y_UE_IMEI_S

WITCH-1

RNC_PS_QUER

Y_UE_IMEI_S

WITCH-0

Special User Function

Switch3

SpecUserFunctionSwitc

h3

SPECUSER_SR

B_OVER_HSDP

A_DISABLED_

SWITCH-1

N/A

Dynamic Resource

Allocation Switch 2DraSwitch2

DRA_PCPICH_ECN0_ON_RACH_UPDATE_SWITCH-1

DRA_PCPICH_ECN0_ON_RACH_UPDATE_SWITCH-0

FDPCH Maximum

Reference Power

FDPCH Maximum

Reference Power30(3dB)

-30(-3dB)

FDPCH Minimum

Reference PowerFdpchMinRefPwr -150(-15dB)

-200 (-20dB)

Cell Capability Container CellCapContainerFddFDPCH_SUPPORT-0

FDPCH_SUPPORT-0

Compatibility Switch CmpSwitchCMP_UU_FDPCH_COMPAT_SWITCH-0

CMP_UU_FDPCH_COMPAT_SWITCH-0

UALGORSVPARA RsvSwitch11 RESERVED_SWITCH_11_BIT

RESERVED_SWITCH_11_BIT



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Current Setting

Reserved swtich 5-1 5-0

UALGORSVPARA

Reserved swtichRsvSwitch7

RESERVED_SWITCH_7_BIT14-0


UALGORSVPARA

Reserved swtichRsvSwitch11



Optimization Switch Optimization SwitchPS_RL_SETUP_SWITCH-1

PS_RL_SETUP_SWITCH-1

Process Control Switch 4 PROCESSSWITCH4IUR_RL_REEST_SWITCH-1

IUR_RL_REEST_SWITCH-1

Process Control Switch 4 PROCESSSWITCH4TRB_RESET_RL_REEST_SWITCH-1

TRB_RESET_RL_REEST_SWITCH-1

Optimization Switch OptimizationSwitchSRB_RESET_RL_SETUP_SWITCH-1

SRB_RESET_RL_SETUP_SWITCH-1

Optimization Switch OptimizationSwitchRLFAIL_RL_SETUP_SWITCH-1

RLFAIL_RL_SETUP_SWITCH-1

Optimization Switch OptimizationSwitchRL_RESTORE_SWITCH-1

RL_RESTORE_SWITCH-1

Optimization Switch OptimizationSwitch ASU_RL_RESET_SWITCH-1

ASU_RL_RESET_SWITCH-1

Optimization Switch OptimizationSwitch MC_RL_RESET_SWITCH-1

MC_RL_RESET_SWITCH-1

Process Control Switch 4 PROCESSSWITCH4PHY_RECFG_REEST_SWITCH-1

PHY_RECFG_REEST_SWITCH-1

Process Control Switch 4 PROCESSSWITCH4PHYCHRECFG_ENH_RL_REEST_SWITCH-1

PHYCHRECFG_ENH_RL_REEST_SWITCH-0

Process Control Switch 4 PROCESSSWITCH4RB_SETUP_ENHANCE_RL_REEST_SWITCH-1

RB_SETUP_ENHANCE_RL_REEST_SWITCH-1

Process Control Switch 4 PROCESSSWITCH4RBRECFG_ENH_RL_REEST_SWITCH-1

RBRECFG_ENH_RL_REEST_SWITCH-1



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Current Setting

Optimization Switch OptimizationSwitch RB_RECFG_RL_REEST_SWITCH-1

RB_RECFG_RL_REEST_SWITCH-1

Improvement Switch Improvement Switch NON_DCCC_RBRECFG_RL_REEST_SWITCH-1

NON_DCCC_RBRECFG_RL_REEST_SWITCH-1

Improvement Switch Improvement Switch SMC_RL_REEST_SWITCH-1

SMC_RL_REEST_SWITCH-1

Process Control Switch 4 PROCESSSWITCH4IRATHO_HOCANCEL_RL_REEST_SWITCH-1

IRATHO_HOCANCEL_RL_REEST_SWITCH-0

Optimization Switch OptimizationSwitch UE_SRB_RESET_SWITCH-1

UE_SRB_RESET_SWITCH-1

Process Control Switch 2 PROCESSSWITCH2 CELLUPT_RLFAILURE_SRBREESTAB_SWITCH-1

CELLUPT_RLFAILURE_SRBREESTAB_SWITCH-1

Performance

Enhancement Switch 3

PerfEnhanceSwitch3 PERFENH_RLRESETUP_GUARANTEE_SWITCH-1

PERFENH_RLRESETUP_GUARANTEE_SWITCH-0

Optimization Switch6 OptimizationSwitch6 ASU_RSP_FAIL_REL_UE-1

ASU_RSP_FAIL_REL_UE-0

Process Control Switch 2 PROCESSSWITCH2 ASU_RSP_TIMEOUT_HANDLE_SWITCH-1

ASU_RSP_TIMEOUT_HANDLE_SWITCH-1

1.4 Change Period

The change period is from 23:00, 16/02/2015 to 06:00 17/02/2015.

1.5 Composition of Change Team and Responsibility of Team Members

Feature Activation: Fan Bai

Drive test: Huawei DT team



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1.5.1 Change Team of Optus

Name Responsibility Telephone No.

Wance Shand Project Manager 0431 501 880

Ruth Foo RNC platform Owner 0402 974 738

Rainier Collantes Capacity Manager 0433 788 081

Marcin Wierzbicki RAE Prime 0434 739 988

Alan Loo Mobile Tier2 0434 763 295

Gabriel Prasad Mobile Tier2 0402 792 982

Shift Duty Tier I, GMS Pro Active 1800 505 777 * 3

1.5.2 Huawei On-site Change Team


Joyce Yu Project Manager 0432 329 858

Fan Bai RAN Engineer 0423 715 506

Mac Chin Technical Specialist 0434 679 157

Bill Li CSSD Manager 0425 510 050

1.5.3 Huawei Support & Guarantee Team


Cherry Li

Supporting overall

coordination as the

technical expert

0452 625 158

Bill LiProduct support contact

person

0425 510 050

1.6 Check of Equipment Running

It is required to check the health of the trial RNC and NodeB before feature

activation.



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1.7 Change Risks and CountermeasuresRisk existing in change duration: the PS call drop rate may increase after feature

activation.

No. Risk Description Possibility

(High/Middle/

Low)

Impact

(High/

Middle/Low)

Countermeasure

1 Data backup Low Low N/A

2 Impact on NEs Low Low RSSR, DCR, HO SSR

3Risk in change

duration

Middle Middle RSSR, DCR, HO SSR

1.8 Issue terminals

To our best knowledge, the following terminals are not compatible with SRB over HSDPA.

It is required to block these terminals to use SRB over HSDPA. The following table lists

the blacklisted terminals know by HUAWEI.

Description TAC

1 Blackberry BB9900 35427905

2 HUAWEI U8860 86894300

3 HUAWEI E367 35361304

4 HUAWEI E372 35314704

5 SAMSUNG Galaxy S2 35884804

6 Blackberry BB9810 35812304

7 MotorolaXT890 35253105



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1.9 Check Before Change

No. Preparations Before Change Owner Completion

Date

1 Solution for rollback in the case of failure Fan Bai

2 Test solution Mac. Chin

3 Confirming change risks and emergency

measures

Fan Bai

4 Readiness of mobile phone test card Mac. Chin

5 Readiness of change test personnel Mac. Chin

6 Readiness of relevant equipment

maintenance personnel

N/A

7 Readiness of support & guarantee team Mac. Chin

8 Readiness of remote log-in environment Fan Bai

9 Readiness of emergency spare parts N/A

10 Readiness of boards, tools, and

instruments

N/A

2 Operation Steps for Change

2.1 Change Steps

2.1.1 Overall Description

The whole procedure of change is composed of following sub-tasks

Pre- Drive test

Data Backup(Configuration, Alarm .etc)

Check the path for transmitting SRBs has been configured.

Run Script to activate SRB over HSDPA

Turn on License Control item of SRB over HSDPA

System Verification

Post- Drive test



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2.1.2 Operation Steps for Change

No. Change Step Operation Implementation

Person

Time

1 Pre-Drive

testDrive test for benchmark

DT team 12:00

2Data backup

Backup Configuration file ,

Active Alarm, License file

Fan Bai 23:00

3 Check the

configuration

Check the path for transmitting

SRBs has been configured

Fan Bai 23:30

4 Feature

Activation

Turn On Feature Switches and

License Control

Fan Bai 0:00

5 System

verification

Alarm check

KPI monitoring

Fan Bai 1:30

6 KPI report Fan Bai 3:00

7 Post-Drive

testDrive test

DT team 12:00

2.1.3 Script for Change

2.2 Test and Verification

No. Operation Item Operation Method Owner Time

1 Alarm Check Clear new Alarm caused by

feature activation if applicable

Fan

Bai

0:00

2 KPI monitoring Confirm Major KPI

performance is no degradation

Fan

Bai

2:00



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3 Drive test Post Drive Test DT

team

12:00

2.3 Solution for Rollback In the Case of Failure

2.3.1 Definition of Change Failure

A change failure shall be recognized if the major KPI degradation could

not be resolved before 4:00 am.

Upon the suiation of change failure, rollback operation shall be taken

and finished before 6:00 am.

2.3.2 Information Collection Before Rollback

Configuration file

Operation Log

Performance Data

CHR, PCHR

2.3.3 Overall Description of Rollback

Data Backup(Configuration, Alarm .etc)

Run Script to rollback the configuration

System Verification

Post- Drive test

2.3.4 Rollback Steps

No. Change Step Operation Implementation

Person

Time



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1Data backup

Backup Configuratio file ,

Active Alarm, License file

Fan Bai 4:00

2 Feature

deactivation

Run roll back scripts to turn

Off Feature Swicthes

Fan Bai 4:30

3 System

verification

Alarm check

KPI monitoring

Fan Bai 5:30

5 KPI report Fan Bai 6:00

2.3.5 Script for Rollback

2.3.6 Equipment Status Check

N/A

2.3.7 Rollback Risk Analysis

N/A

2.4 Change of Spare Parts and Emergency Workstation

N/A



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Documents

Change Implementation Solution - SRB Over HSDPA