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1、3G呼叫時(shí)延長(zhǎng)問(wèn)題分析報(bào)告在3G網(wǎng)絡(luò)優(yōu)化過(guò)程中發(fā)現(xiàn),VC和VP的呼叫接續(xù)時(shí)延較長(zhǎng),一般都接近5秒左右,嚴(yán)重影響了川戶感受。對(duì)此問(wèn)題町以進(jìn)行信令的跟蹤,根據(jù)主被叫的呼叫信令流程進(jìn)行分析,我們可以采用對(duì)比法完成,。例如:小區(qū)A和小區(qū)B都采用同樣的呼叫測(cè)試方法,使用3G測(cè)試號(hào)碼互撥。測(cè)試地點(diǎn)無(wú)線環(huán)境良好。小區(qū)A信令分析結(jié)果:下表是小區(qū)A的主被叫手機(jī)呼叫的信令流程,本次呼叫耗時(shí)4.11秒。UE序號(hào)時(shí)間消息方向消息類型標(biāo)準(zhǔn)呼叫流程時(shí)延差別UE1254618:17:32(50)From-UERRC_RRC_CONNECT_REQRRCCONNREQ
2、UE1256118:17:32(50)From-CNRANAP_COMMONJDCOMMON」D0.24UE1256618:17:32(50)From-CNRANAP_SECURITY_MODE_COMMANDUE1257818:17:32(51)To-UERRC_SECURITY_MODE_CMDUE1259318:17:32(63)From-UERRC_SECURITY_MODE_CMPUE1260118:17:32(63)To-CNRANAP_SECURITY_MODE_COMPLETEUE1262418:17:32(74)To-
3、CNRANAP_DIRECT_TRANSFERSetupUE1263918:17:32(77)From-CNRANAP_DIRECT_TRANSFERcallproceedingUE2139118:17:32(91)From-CNRANAP_PAGINGPAGINGUE2139218:17:34(69)From-UERRC_RRC_CONNECT_REQRRCCONNREQUE2140718:17:34(69)From-CNRANAP_COMMON_IDCOMMON」D0.27UE2141218:17:34(69)From-CNRANA
4、P_SECURITY_MODE_COMMANDUE2142418:17:34(70)To-UERRC_SECUR「「Y_MODE_CMDUE2143918:17:34(83)From-UERRCSECURITYMODECMPMMUE2144718:17:34(83)To-CNRANAP_SECURITY_MODE_COMPLETEUE2144918:17:34(83)Out-of-RNCDTl.MSGUE2145518:17:34(84)In-RNCDTl.MSGUE2145718:17:34(84)From-CNRANAP_D1REC
5、T_TRANSFERUE2145818:17:34(84)To-UERRCDLDIRECTTRANSFOB*MMUE2146918:17:34(95)From-UERRC_UL_DIR_TRANSFUE2147018:17:34(95)To-CNRANAP_DIRECT_TRANSFERUE2147218:17:34(95)Out-of-RNCDTl.MSGUE2147518:17:34(96)In-RNCDTl.MSGUE2147718:17:34(96)From-CNRANAP_DIRECT_TRANSFERSetUpUE21478
6、18:17:34(96)To-UERRC_DL_DIRECT_TRANSFUE2149118:17:35(09)From-UERRC_UL_D1R_TRANSFUE2149218:17:35(09)To-CNRANAP_DIRECT_TRANSFERcaliconfinnUE1299618:17:35(13)From-CNRANAP_RAB_ASSIGNMENT_REQRABASSREQ0.74UE1300718:17:35(23)From-UERRCACTIVESETUPDATECMPUE1300818:17:35(23)From-U
7、ERRCACTIVESETUPDATECMPUE1300918:17:35(23)From-UERRC_ACTIVE_SET_UPDATE_CMPUE1307118:17:35(23)To-CNQAAL2_ESTABLISH_REQUESTUE1307518:17:35(24)From-CNQAAL2_ESTABLISH_CONFIRMUE1313518:17:35(24)To-NodeBQAAL2.MODIFY_REQUESTUE1314218:17:35(25)From-NodeBQAAL2_MODIFY_ACKNOWLEDGEUE
8、1315518:17:35(25)To-NodeBNBAP_RL_RECFG_PREPUE1315618:17:35(28)From-NodeBNBAPRLRECFGREADYUE1316918:17:35