How to Solve vs.rrc.Rej.rl.Fail
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HISILICON SEMICONDUCTOR HUAWEI TECHNOLOGIES CO., LTD. Page 1 A Lot Of RRC Reject Caused by RL Failure In RNC21 In 8.8, HREY0098 Was The Top Site Time RNC VS.RRC.Rej.RL.Fa il 08/08/2013 00:00 REYRNC21 0 08/08/2013 01:00 REYRNC21 0 08/08/2013 02:00 REYRNC21 0 08/08/2013 03:00 REYRNC21 0 08/08/2013 04:00 REYRNC21 0 08/08/2013 05:00 REYRNC21 0 08/08/2013 06:00 REYRNC21 0 08/08/2013 07:00 REYRNC21 0 08/08/2013 08:00 REYRNC21 0 08/08/2013 09:00 REYRNC21 25 08/08/2013 10:00 REYRNC21 36 08/08/2013 11:00 REYRNC21 126 Time RNC NodeBId NODEBNAME VS.RRC.Rej.RL.Fa il 08/08/2013 REYRNC21 2976 HREY0098 13212 08/08/2013 REYRNC21 2977 HREY0101 9332 08/08/2013 REYRNC21 2451 HMAT0016 8613 08/08/2013 REYRNC21 2934 HREY0019 253 08/08/2013 REYRNC21 2952 HREY0062 15 08/08/2013 REYRNC21 2954 HREY0068 11 08/08/2013 REYRNC21 2944 HREY0041 4 08/08/2013 REYRNC21 2962 HREY0082 3 08/08/2013 REYRNC21 2445 HMAT0003 3 08/08/2013 REYRNC21 2448 HMAT0008 3 08/08/2013 REYRNC21 2476 HMAT0052 1
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Transcript of How to Solve vs.rrc.Rej.rl.Fail
HISILICON SEMICONDUCTORHUAWEI TECHNOLOGIES CO., LTD. Page 1
A Lot Of RRC Reject Caused by RL Failure In RNC21 In 8.8, HREY0098 Was The Top Site
Time RNC VS.RRC.Rej.RL.Fail08/08/2013 00:00 REYRNC21 008/08/2013 01:00 REYRNC21 008/08/2013 02:00 REYRNC21 008/08/2013 03:00 REYRNC21 008/08/2013 04:00 REYRNC21 008/08/2013 05:00 REYRNC21 008/08/2013 06:00 REYRNC21 008/08/2013 07:00 REYRNC21 008/08/2013 08:00 REYRNC21 008/08/2013 09:00 REYRNC21 2508/08/2013 10:00 REYRNC21 3608/08/2013 11:00 REYRNC21 12608/08/2013 12:00 REYRNC21 32508/08/2013 13:00 REYRNC21 43508/08/2013 14:00 REYRNC21 38408/08/2013 15:00 REYRNC21 40908/08/2013 16:00 REYRNC21 29008/08/2013 17:00 REYRNC21 125808/08/2013 18:00 REYRNC21 485708/08/2013 19:00 REYRNC21 595008/08/2013 20:00 REYRNC21 832308/08/2013 21:00 REYRNC21 726208/08/2013 22:00 REYRNC21 173308/08/2013 23:00 REYRNC21 37
Time RNC NodeBIdNODEBNAM
EVS.RRC.Rej.RL.Fail
08/08/2013 REYRNC21 2976 HREY0098 1321208/08/2013 REYRNC21 2977 HREY0101 933208/08/2013 REYRNC21 2451 HMAT0016 861308/08/2013 REYRNC21 2934 HREY0019 25308/08/2013 REYRNC21 2952 HREY0062 1508/08/2013 REYRNC21 2954 HREY0068 1108/08/2013 REYRNC21 2944 HREY0041 408/08/2013 REYRNC21 2962 HREY0082 308/08/2013 REYRNC21 2445 HMAT0003 308/08/2013 REYRNC21 2448 HMAT0008 308/08/2013 REYRNC21 2476 HMAT0052 1
HISILICON SEMICONDUCTORHUAWEI TECHNOLOGIES CO., LTD. Page 2
VS.RRC.Rej.RL.Fail Distribution In Different Hours
HISILICON SEMICONDUCTORHUAWEI TECHNOLOGIES CO., LTD. Page 3
VS.RRC.Rej.RL.Fail Is Caused By CNBAP Overload
What is CNBAP?
CNBAP(Common NodeB Application Part) descript the NodeB signaling traffic of IUB interface. One CNBAP means one RL establishment.
CNBAP= PAR*（ NBAP_RL_SETUP_REQ+ NBAP_RL_ADD_REQ+ NBAP_RL_RECFG_PREP*2） /3600
CNBAP we get from statistic is a average value, so we need to multiply a coefficient (PAR) to get the peak value. PAR means peak to average rate, usually 1.6 to 2.
How to calculate CNBAP?
When the calculated CNBAP reached 60% of the CNBAP capacity, we need to suggest customer to extend the hardware.
HISILICON SEMICONDUCTORHUAWEI TECHNOLOGIES CO., LTD. Page 4
CNBAP Of HREY0098 Is More Than 100 CNBAP/S In Busy Hours
CNBAP= PAR*（ NBAP_RL_SETUP_REQ+ NBAP_RL_ADD_REQ+ NBAP_RL_RECFG_PREP*2） /3600
PAR=2
HISILICON SEMICONDUCTORHUAWEI TECHNOLOGIES CO., LTD. Page 5
CNBAP Capacity Of HREY0098 Is 110 CNBAP/S
HERY0098 current software version is V200R012C00SPC450, and configured 1 WMPT+2WBBP. So the CNBAP capacity of HREY0098 is 110 CNBAP/S.
HISILICON SEMICONDUCTORHUAWEI TECHNOLOGIES CO., LTD. Page 6
Solution
Site HERY0098 CNBAP overload caused VS.RRC.Rej.RL.Fail.Suggest to extend 1 WBBP and update the software version to V200R013C00SPCxx0. 1 WMPT+3WBBP with software version V200R013C00SPCxx0 can support 175 CNBAP/S.
