yaserahmed25
2012-02-14, 06:11 PM
We are experiencing IRAT HO failures with the cause "configuration unacceptable":
- Core is HW & ZTE
- Radio is ZTE (2G & 3G) in 2 regions and HW (2G & 3G) in 3rd region
- IRAT failures occur for both CS & PS
- Failures occur for both intra and inter MSC IRAT HOs
- Some IMSI have been traced having high no of IRAT failures
- IMSI Trace in BSC & RNC were done but no difference was found in any message / configuration settings when we compared a successful & failed IRAT HO trace
- The traced UEs are SonyE******* Xperia, Samsung I8150, HTC Incredible S
- We did not find any successful IRAT HO in the traces for these IMSI
- No failures found with Sony E******* Z750 & C702 during drive tests
- One interesting aspect is that the failures disappeared after setting ciphering to A5/0 (no ciphering) at MSC end. When we set them again to A5/1, the failures appeared again.
Looking forward to a good discussion :-)
- Core is HW & ZTE
- Radio is ZTE (2G & 3G) in 2 regions and HW (2G & 3G) in 3rd region
- IRAT failures occur for both CS & PS
- Failures occur for both intra and inter MSC IRAT HOs
- Some IMSI have been traced having high no of IRAT failures
- IMSI Trace in BSC & RNC were done but no difference was found in any message / configuration settings when we compared a successful & failed IRAT HO trace
- The traced UEs are SonyE******* Xperia, Samsung I8150, HTC Incredible S
- We did not find any successful IRAT HO in the traces for these IMSI
- No failures found with Sony E******* Z750 & C702 during drive tests
- One interesting aspect is that the failures disappeared after setting ciphering to A5/0 (no ciphering) at MSC end. When we set them again to A5/1, the failures appeared again.
Looking forward to a good discussion :-)