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Re: Mute call on 3G
hello , here is the nsns expert analysis of the problem:
seams reasonable...
In this failure case RLC reset happens to PS bearer and UE is transferred to PCH. But also CS Iub is removed. UE does cell update after 13 seconds and also the CS is setup again but user has disconnected the call already.
For RLC resets following findings:
HSUPA seems to be using low bit rate power offsets and used SIR target looks too high. No byte is coming from EDCH.
RNC SW TN 159: 6.1.26 HSUPA Initial SIR target offset enhancements has not been implemented. Please check and do the changes according to the TN:
- 0x4240H for 1703 RN50_MAINT_27
- 0xA864H for 1704 RN50_MAINT_28.
Also these parameters maybe reasonable to be modified:
RNCHSPA- CPICHRSCPThreEDCH2MS 130 ->125
RNHSPA- CPICHEcNoThreEDCH2MS -10dB to -6dB.
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