A、PCRF向PGW發(fā)起“IP-CANSession Modification”請(qǐng)求 B、MME下發(fā)eNB“ERAB MODIFY REQUEST”,該條信令中包括QCI,MBR&GBR,ARP C、eNB向UE下發(fā)RRC CONNECTION RECONFIGURATION會(huì)把上述參數(shù)帶下去 D、UE返回"Bearer Modify Response"
A、首先檢查Counter,比如:pmPagS1Discarded,pmPagS1Received,pmPagDiscarded,pmPagReceived等 B、判斷是否是因?yàn)樾^(qū)阻塞或是Paging超過(guò)了s1接口能接受的最大數(shù)目 C、抓取L3 Trace,與標(biāo)準(zhǔn)信令流程對(duì)比查看哪一步導(dǎo)致業(yè)務(wù)請(qǐng)求未完成,追蹤出問(wèn)題的某一條信令然后定位問(wèn)題節(jié)點(diǎn) D、檢查測(cè)量報(bào)告MR看能否發(fā)現(xiàn)相關(guān)問(wèn)題
A、INITIAL CONTEXT SETUP REQUEST(S1AP) B、HANDOVER REQUEST(S1AP and X2AP) C、DOWNLINK NAS TRANSPORT(S1AP) D、HANDOVER COMPLETED