CSFB指标详解.docx

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1、1、CSFB尝试次数：倍令中有效的ExtendedServiceRequest出现次数“信令中出现ExtendedServiceRequest次数（注：出现ExtendedServiceRequest的时候必而伴l希RRC连接择放RRCConnectionRelease.才能算是一次有效的CSFB裳试次数，若单独有ExtendedServiceReqUeSt而没有RRCConnectionRelease.则这次CSFB尝试是无效的不能修人CSFB尝试次数中去）下图为有效CSFB尝试：EITElfIDSER7IC?REQO1.DOCHXMO.SCM(UlTnfontUenTransferSyst

2、eiInfonatlcnBXHC1.SClKXHU.SCBftXD1.XBXHD1.SCBSysteiInfonatlcnS/steiIMOrMH刖BlockTypelSysteiInfOrlNlgSysteiInforaatlcnTAURBQU1.OXHSCCxnectlonRequestD1.OXHU1.DOCHBXHD1.9C8M.DOHQ1.DOCH5JJCCocnectlonSetupRRCComecxlcnSetupCop)cteSysteiInfonatlcnD1.InfoniationTransferU1.InfonatlonTrtneferN.DOCHW.DOCHD1.DCC

3、HD1.InfonatlonTransferU1.InfQrlaHonTrMeferD1.InfonancnTransferm.DOCHUUACCTAU81F1.rTE“XnfonatlonTrngferD1.DCCHIUCConnectionFe.-ar-3ffHRRCiJSftftPCCHrinVICIRlQO1.COCHD1.OOCHRRCCocnectionRequestRRCComectionSetvp下图为无效CSFB卷试:,.1；FMU1.x三U1.InfonatlcnTransferD1.DOCSG1.DCCBKXBCC3HRXBCC利RlCComectlonReconfieu

4、ratlcciRBCCorrectionReconficuraticnCoiplete两次EXTENDEDSERVICEREQ之间并艺tc巴。mat了BlockTypel没有出现RRC连接睡放SysteinoriunEXTFiniPDSCTVICBRg2、CSFB胜利次数：（1）信令中CMSerViCeReqUeSt的出现次数.信令采集完全正常状况下的信令如下图：FTTtNbEbSERVICEftQFfte/U1.QxHSjtCCcnnectionRequestC1.CCCHU1.D07HRRCCccinectlonSetupRRCCmetlonSetupCoplcxeC1.(XXHSecur

5、itylodeCBndU1.WrHD1.DCCHO1.DCTHC1.DCCHSecurityIodeCoapleteRRCCcnetlonRecn118uratlonKRCCw-eatlonType4C1.BCCHChannSysteaInfoniationType13PtCOCHChlnrYPauneReqieftType2C1.BCVHCMnrRSyateInfomfttlonType2ter1.1.BCVHChannSySteInfomatlonType2quaterDCBrcHChanrjjSysteaInfomatlonType3C1.COiChannPaglneRequestTyp

6、e1凡1.runwt1.BlXHChanwyseaJrnOEQzgype4止仇,卜包啜出版0BSysteaInforBatlonType1一.功信ASCrVieURCQUe八IClServiceRequestD1.RXHCbannelSysteaInforiatlcciType2D1.CCCHChannelUiedlateAsslsnftentD1.SAOCHCbartwlSyeteaInf*aUy三teBInlonatlonType6AuthenticationRequestU1.SAOTHChannel(easureacntReportAuthenticationResponseD1.SA

7、BHCbawelJysxeBInfor*atinType5ClServiceAcceptSetypdStonetworkdlrectlcU1.SA(XHChaWl-asureentReportD1.SACCHChamelystcBInforaatlceiType5terCallProceedinfU1.SAOJHChannel*asureiCTitReportD1.SAXHChamelyteaIRfomaqlgType6U1.SAenReport2）、由于软件采集到的数据不完全，有时候应当出现的CMSerViCeRequest并没有上示出来,这种状况下就须要我们自己去推断CSFB是否胜利.推断

8、CSFB是否胜利,就百UE是否进入G网信道，占用到G河即可.所以统计的时候须要的未显示的胜利次数至动加上.CSFB胜利时CMServiceRequest未能正常示的信令截图;Dcch卜Mr-2-ffl4,XDOCHIyCCoroe:UWeyejRRe连授gift,有效的CSTO求XOXMCbumelSyjxeiInforBitlonType4C1.DCCHCTuraielXOOCHChuvwlU.RXHCbamelXKXMChimelU.OOCHChirmelK.KCHQuito】U.KXHChwnelU.CCCMCbtmelOtherCbamel111.DCCHOumel1.IKXHCHtf

9、rielT1.SACmChumelCCSAaHQUnneIU1.SAXHOUrmelECSAaHCbwwwltn.SACCHQunnelKSACCHChannelSyite*InfomtSonType3PgMReQ1.ettTypeISysteiInfonatlonType4Syne*InforBitlonType1PaGngRejestType1SyteTnfoiwatlonType2SysteInfoxtlonType3IBxedlateAsslpnentChirmelRequestCltfiBarkOunceCPtSSusperalyRequwtIeAsureientReportSyit

10、eiInfomaTlonTypeSterVevreaentReportSrStejlInfxationType6TW明已占用到XiIeisureientReportSysteaIMOEEgType5Jj1.SAHHQUnnelIeisureientReport3）、还有一种状况是UE发送息求并且RRC连接择放以后哦未能胜利占用到G网,就是CSFB不胜利.也就有UE发送的ExtendedServiceRequest.但因为未能回落到2G.所以就没方CMServiceRequest.假如UE发送的ExtendedServiceRequestjfJ1.RRC连接择放以后，并没彳iCMServiceR

11、equesttk）CMServiceAccept,而是伴随希位员更新，且在卜一次CSFB宏试恳求之前都没有占用到G网，就可以判定为此次CSFB失败。下图为CSFB失败信令故图:U1.DCCHU1.InfnationTransferIeasuretentReportSysteiInformationBlockTypelSyetciInfortationSyste*InformationSysteiInfonatinSysteiInformation一上国企I4CG”以口列BXHD1.三BXHD1.SCHDXHD1.SCHKCHD1.BXHD1.97HRRCConnectionRequestKRC

12、ConnectionSetupRRCCocinecticnSetupCcapleteU1.(XCHD1.OXHUE发送CSf皓成请求TAURfQU1.U1.D1.U1.M.DCCHWCHCCCHCCCHDCCHCCCHXU1.MU1.Inf0natlOnTranSferInfonatl0TransferInfonatloaiTransferInfatlgTransfer宣试请术之后伴辅的是位置更新柳C连授麻放.表明是有效的岩送清求U1.MCCCHDCCHPCCHU1.InfonatioeiTransfergcnncctloneeaseragingTAUTAUACCCXtP1.ETESSRVIC

13、ZREQmtiU1.1.V1.HW.CCCHU1.DCCHW.DCCHl11.CCCHD1.DCCHU1.DCCHD1.DCCHl11.CCHU1.DCCHmDCCHU1.IXHm.DCCHKrHD1.9iBCCHO1.灯KrHD1.SFKXHD1.BXHD1.灯BCCHD1.SCHKXHD1.XHBeCHD1.XHKrHD1.SNBXHD1.XWDHHD1.9/UECapabilityInfortationSecixrltylodeCbbandSecurityIodeCoapleteRRCCceinectionReconfigxxrationRRCCometUnReconfigurationCompleteRRCCoffinectionReconfiguraticnRRCComectlonReconfigurationCeapleteR