Ejb Quality Improvement: Trial Rlt – H_lumajang_01

EJB QUALITY IMPROVEMENT Trial RLT – H_LUMAJANG_01 Nov 2011

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H_LUMAJANG_01 currently using setting of radioLinkTimeout 10/12/12, RLT = 10, ARLT = 12, AHRLT =12 We tried to reduce the setting to value 6/7/7, RLT = 6, ARLT = 7, AHRLT = 7. NCR for this changes attached. Implemented at 28 Nov 2011 18:00. During implemenation we found that there has been swapped SdDrop Profile between SdDropRF and SdDropAif, meanwhile SdDropRate is maintained. These Profile swapped also inline with Bsc CC swap between CC-17 and CC104 at CIPHERING Phase and CONVERSATION Phase.

Reduce setting of RLT was not favorable to DropCallRate. After implementation RLT to 6/7/7, TchDropRf increased and DCR was degraded Previous setting of RLT have been revert back to 10/12/12 at 2 Des 2011 05:00

Company Confidential 2 © Nokia Siemens Networks

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H_LUMAJANG_01 – Hourly Performance TrafficCS, TrafficPS, TrafficSdcch, BscAvailability

• Traffic CS maintained RLT 6/7/7

RLT 6/7/7

• Ps Payload maintained.

• Traffic Sdcch maintained.

• Bsc Availability maintained. RLT Setting TRIAL RLT 6/7/7

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Presentation / Author / Date

RLT 6/7/7

H_LUMAJANG_01 – Hourly Performance CSSR, SdDropRate, DropCallRate, HandoverSuccessRate

• CSSR degraded due to increase SdBlocking. • TchBlocking maintained. • SdDropRate maintained. It seems there has been swapped from SdcchDropRf and SdcchDropAifCall • DCR degraded due to increase TchDropRf during trial. • HOSR maintained.

Company Confidential 4 © Nokia Siemens Networks

RLT 6/7/7

RLT 6/7/7

RLT Setting TRIAL RLT 6/7/7

Presentation / Author / Date

RLT 6/7/7

H_LUMAJANG_01 – BSC ClearCodes CSSR, SdDropRate, DropCallRate, HandoverSuccessRate RLT Setting TRIAL

RLT 6/7/7

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RLT 6/7/7

At Ciphering Phase there has been swapped CC between CC-17 (CONN_FAIL_RAD_LINK_FAIL) and CC-104 (AIV_TIMEOUT), which was inline with SdDrop Profile happened. At Conversation Phase, there has been swapped CC between CC-17 (CONN_FAIL_RAD_LINK_FAIL) and CC-104 (AIV_TIMEOUT), which was inline with SdDrop Profile happened.

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