Huawei Direct Retry Decisison (DRD) Activation – MOPPrepared by Ir. Senthilathiban Thevarasa NEO-NIC/RNC

Purpose

Serve as a practical guideline and reference of Huawei RNC(s) and Node B(s) technical command line, to execute DRD activation / configuration. This is to activate DRD across all 900-2100 sectors in all RNC(s). Non-Service affecting and fallback can be implemented upon request from OPTI/RF team. This document will be revised as needed, when there is change to RAN software and any other application change.

Pre-Check Procedures at RNC (M2K)@RNC & Cell Level – Current setting

1. RNC pre-requisites check on DRD activation LST UCORRMALGOSWITCH to check on the parameter – HOSWITCH=HO_INTER_FREQ_HARD_HO_SWITCH; & DRSWITCH=DR_RAB_SING_DRD_SWITCH;

2. LST UDRD to check on the parameter – BASEDONMEASHRETRYDRDSWITCH=OFF; & BLINDDRDEXCEPTHRETRYSWITCH=OFF;

3. LST UINTERFREQNCELL to check on the parameter BLINDHOFLAG=TRUE/FALSE

4. LST UCELLLDR to check on the parameter INTERFRELDHOMETHODSELECTION

5. Back up MML command – results will show where the file will be saved.EXP CFGMML

6. Perform a health check on all Node B(s) at the designated RNC to check status of site if it’s up or down. Take Note of the Node B(s) which are down - Operational state=Unavailable, State explanation=Cell is not active. This is to ensure the state of the cells should be the same before & after execution.DSP UCELL: DSPT=BYNODEB;Note: when the message ‘maximum output lines’ appears, look for the whole report in ‘Operation Record’ side window → click on ‘more content’ & copy to Note pad.

7. Back-up alarm at RNC ALARM/EVENT → click on ‘NORMAL’ alarm and save it in user’s own directory.

8. Via M2K list local cell configuration to see detailed and summarized info. To perform separately for DBS3800 and DBS3900 WCDMA.

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Huawei Direct Retry Decisison (DRD) Activation – MOPPrepared by Ir. Senthilathiban Thevarasa NEO-NIC/RNC

9. To inform NMC before activation

Implementation / Activation Procedure at RNC & Node B

1. To SET UCORRMALGOSWITCH parameter – HOSWITCH=HO_INTER_FREQ_HARD_HO_SWITCH-1; & DRSWITCH=DR_RAB_SING_DRD_SWITCH-1;

2. To SET UDRD parameter – BASEDONMEASHRETRYDRDSWITCH=ON; & BLINDDRDEXCEPTHRETRYSWITCH=ON;

3. To MOD UINTERFREQNCELL parameter – RNCID= [XXX] & CELLID=[F4/MG] & NCELLRNCID=[XXX] & NCELLID=[F1/F2/F3/W2100] & HOCOVPRIO=[0] & BLINDHOFLAG=[TRUE] & BLINDHOQUALITYCONDITION=[-70] & DRDECNOTHRESHOLD=[-8]

4. To MOD UCELLLDR parameter – CELLID=[F4/MG] & INTERFRELDHOMETHODSELECTION=[BLINDHO] & DLLDRFIRSTACTION=[BERATERED] & DLLDRSECONDACTION=[CODEADJ] & DLLDRTHIRDACTION=[NOACT]

Post-Check Procedures at RNC & Node B

1. Inform OPTI Engineers to check on performance2. Verify all parameters above once again if changes are captured.3. Conduct a post check on alarm captured before & after activation. To check cell

status, DSP UCELL in the RNC – status before & after should be the same. 4. Deactivation / fallback procedure – the feature does not need to be deactivated.

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