KRRERA來RREEERAB承載信道，正常以及異常的流ThispageisleftblankYYYY-MM-Last 2012-01-IkramANDONIANFourth2012-11-Pascal E4.02013-04-Pascal E6.03UE4 監(jiān)RR才去RRE動，RRC仍則的信令承載。收到終端回應(yīng)的RRCConnectionSetupComplete消息后，下發(fā)RRCConnectionReconfiguration消息重新配置SRB2以及DRB承載。最后終端發(fā)送RRCConnectionReconfiguration若終端此時移動到其他ENB上發(fā)起重建請求的話，由于新的ENB不認(rèn)識這個C-RNTI號，因此會本次重建請Re-establishmentissuccessfullyperformed系統(tǒng)切換類這42:intereNodeBoverS1handoverprocedureis系統(tǒng)切換類這42:intereNodeBoverS1handoverprocedureis3:handoverprocedureisongoing;theThecellonwhichthere-establishmentisperformedisnotthecell(oftheHOprocedure)4:Re-establishmentissuccessfullyperformedbutthereisnohandoverprocedureongoingwhenrequestforre-establishmentisreceived.Thecellonwhichthere-establishmentisrequestedisnottheservingcell.5:Re-establishmentissuccessfullyperformedonservingcellandthereisnohandoverprocedureongoing.6:intraeNodeBinter-frequencyhandoverprocedureisongoing.Thecellonwhichthere-establishmentisrequestedisthecell.7:intereNodeBinter-frequencysameframestructure(TDDorFDD)handoveroverX2procedureisongoing.Thecellonwhichthere-establishmentisrequestedisthecell.8:intereNodeBinter-frequencysameframestructure(TDDorFDD)handoveroverS1procedureisongoing.Thecellonwhichthere-establishmentisrequestedisthecell.9:intereNodeBinter-frequencyotherframestructure(TDD<>FDD)handoveroverX2procedureisongoing.Thecellonwhichthere-establishmentisrequestedisthecell.10:intereNodeBinter-frequencyotherframe(TDD<>FDD)structurehandoveroverS1procedureisongoing.Thecellonwhichthere-establishmentisrequestedisthecell. ingPShandoverfromUTRANprocedureisongoing.Thecellonwhichthereestablishmentisrequestedisthe 說完成功率后接下去看看失敗情況，RRC重建一共區(qū)分了13種失敗原因，很多失敗原因大家都很眼熟，實際上失1:Re-establishmentissuccessfullyperformedwhenintereNodeBoverX2handoverprocedureis2:Re-establishmentissuccessfullyperformedwhenintereNodeBoverS1handoverprocedureisongoing3:Re-establishmentissuccessfullyperformedwhenhandoverprocedureisongoing;theThecellonwhichthere-establishmentisperformedisnotthecell(oftheHOprocedure)4:Re-establishmentissuccessfullyperformedbutthereisnohandoverprocedureongoingwhenrequestforre-establishmentisreceived.Thecellonwhichthere-establishmentisrequestedisnottheservingcell.5:Re-establishmentissuccessfullyperformedonservingcellandthereisnohandoverprocedureongoing.6:Re-establishmentissuccessfullyperformedwhenintraeNodeBinter-frequencyhandoverprocedureisongoing.Thecellonwhichthere-establishmentisrequestedisthecell.7:Re-establishmentissuccessfullyperformedwhenintereNodeBinter-frequencysameframestructure(TDDorFDD)handoveroverX2procedureisongoing.Thecellonwhichthere-establishmentisrequestedisthecell.8:Re-establishmentissuccessfullyperformedwhenintereNodeBinter-frequencysameframestructure(TDDorFDD)handoveroverS1procedureisongoing.Thecellonwhichthere-establishmentisrequestedisthecell.9:Re-establishmentissuccessfullyperformedwhenintereNodeBinter-frequencyotherframestructure(TDD<>FDD)handoveroverX2procedureisongoing.Thecellonwhichthere-establishmentisrequestedisthecell.10:Re-establishmentissuccessfullyperformedwhenintereNodeBinter-frequencyotherframe(TDD<>FDD)structurehandoveroverS1procedureisongoing.Thecellonwhichthere-establishmentisrequestedisthecell.11:Re-establishmentissuccessfullyperformedwhen ingPShandoverfromUTRANprocedureisongoing.Thecellonwhichthereestablishmentisrequestedisthe 這里列舉了3種失敗第一種是ENB沒有開啟重建允許開第二種是終端上發(fā)的C-RNTI號eNB不認(rèn)識，即終端在非原來的eNB上發(fā)起重第三種是ENB允許重建，下發(fā)了RRCConnectionReestablishment，但在計時器超時后仍沒有收到終端的響應(yīng)這里列舉了2類失敗第一種是ENB下發(fā)RRCConnectionReconfiguration后在計時器超時后仍未收到終端上發(fā)的RRCConnectionReconfigurationcomplete消息。這種情況可能是無線問題或者是終端問題第二種是在一個正在進行的重新建立過程完成以前，eNodeB接收到另外一個來自相同UERrcConnectionReestablishmentRequest，這種情況終端問題可能性較RR邊路這里列舉了2MAC-I=MessageAuthenticationCode這里列舉了2Integrityprotection(atPDCPlevel)isrealizedbyaddingafieldknownasMAC-ItoeachRRC一類是UEShortMAC-IUEeNBShortMAC-I不匹配，這屬于終端或APDCPentityisassociatedwiththeControlPlaneandtheUserPlane.EachradiobearerisassociatedonePD重ntity，.正好對 進行如重啟或者lock的操作，或者S1出現(xiàn)故FortheUserPlane,PDCPensuresheader pressionofIPdataflows(ROHC),ciphering/decipheringofuserdata,in-sequencedeliveryofPDUs,bufferingandforwardingPDUfromservingeNodeBtoeNodeBduringHO,time-baseddiscardingofSDUsinUL.FortheControlPlane,PDCPensuresciphering/decipheringofcontroldata,integrityprotectionandintegrityverificationofcontroldata,transferofcontroldata.ThedataunitthatisintegrityprotectedisthePDUheaderandthedatapartofthePDUbeforeciphering.IntegrityprotectionisprovidedbythefieldMAC-I(32bits).Attransmission,thevalueofMAC-IiscalculatedbasedonkeysprovidedbyRRClayer,radiobearerID,COUNTvalueandthedirectionoftransmission(COUNTisa32bitscounter,associatedwithaPDCPPDU,composedofHFN,HyperFramber,andPDCPSequenceNumber;itisusedforreorderingtheRLCpackets).ThereceivercomputestheexpectedmessageauthenticationcodeperPDUusingthesameparametersandalgosasthesenderandifitdoesnot AC-Ifield,thePDCPPDUisdiscarded.這里列舉了2類失敗ECA(EB）RR者eB基于上述失敗原因的計數(shù)器，可以統(tǒng)計重建失0:Re-establishmentissuccessfullyperformedwhenintraeNodeBhandoverprocedureisooRe-establishmentissuccessfullyperformedwhenintereNodeBoverS1handoverprocedureisongoing3Re-establishmentissuccessfullyperformedwhenhandoverprocedureisongoingtheThecellonwhichthere-establishmentisperformedisnotthecell(oftheHOprocedure)4:Re-establishmentissuccessfullyperformedbutthereisnohandoverprocedureongoingwhenrequestforre-establishmentisreceived.Thecellonwhichthere-establishmentisrequestedisnottheservingcell.5:Re-establishmentissuccessfullyperformedonservingcellandthereisnohandoverprocedureongoing.6:Re-establishmentissuccessfullyperformedwhenintraeNodeBinter-frequencyhandoverprocedureisongoing.Thecellonwhichthere-establishmentisrequestedisthecell.7:Re-establishmentissuccessfullyperformedwhenintereNodeBinter-frequencysameframestructure(TDDorFDD)handoveroverX2procedureisongoing.Thecellonwhichthere-establishmentisrequestedisthecell.8:Re-establishmentissuccessfullyperformedwhenintereNodeBinter-frequencysameframestructure(TDDorFDD)handoveroverS1procedureisongoing.Thecellonwhichthere-establishmentisrequestedisthecell.9:Re-establishmentissuccessfullyperformedwhenintereNodeBinter-frequencyotherframestructure(TDD<>FDD)handoveroverX2procedureisongoing.Thecellonwhichthere-establishmentisrequestedisthecell.10:Re-establishmentissuccessfullyperformedwhenintereNodeBinter-frequencyotherframe(TDD<>FDD)structurehandoveroverS1procedureisongoing.Thecellonwhichthere-establishmentisrequestedisthecell.11:Re-establishmentissuccessfullyperformedwhen ingPShandoverfromUTRANprocedureisongoing.Thecellonwhichthereestablishmentisrequestedisthe 此外可以對的重建失敗分別統(tǒng)計失敗率，這里給了個CAC失敗率的統(tǒng)計方RRE文上了E是ERAUE上下文可以由MME發(fā)起，也可以由ENB發(fā)起，先來看看MME發(fā)起的流 L12507_1：UECONTEXTRELEASECOMMAND='Normalrelease'andnoUECONTEXTRELEASEREQUESTbeensentL12507_2：CausereceivedinUECONTEXTRELEASECOMMAND='AuthenticationFailure'andnoUECONTEXTRELEASEREQUESThasbeensentpreviously.L12507_3：receivedinUECONTEXTRELEASECOMMAND='Detach'andnoUECONTEXTRELEASEhasbeensentL12507_5：receivedinUECONTEXTRELEASECOMMAND='Normalrelease'andnoUECONTEXTRELEASEREQUESThasbeensentpreviouslyandUEcontextpreviouslyestablishedL12507_6：receivedinUECONTEXTRELEASECOMMAND='Detach‘a(chǎn)ndnoUECONTEXTRELEASEhasbeensentpreviouslyandUEcontextpreviouslyL12507_7：receivedinUECONTEXTRELEASECOMMAND='CSFallbacktriggered'andnoUECONTEXTRELEASEREQUESThasbeensentpreviouslyandUEcontextpreviouslyestablishedL12507_4：receivedinUECONTEXTRELEASECOMMAND='SuccessfulHandover'andnoUECONTEXTRELEASEREQUESThasbeensentpreviously從流程上看，ENB會向MME發(fā)送UeContextReleaseRequest消息，請求UE上下文MME隨之下發(fā)Uecontextreleasecommand消息，ENB收到該消息后會向終端發(fā)送RrcConnectionRelease消息L12507_0統(tǒng)計的是在ENB發(fā)起Uecontextreleaserequest消息后收到的Uecontextreleasecommand消息L12507_5統(tǒng)計的是UE上下文建立后，ENB收到正常原因的UecontextreleasecommandE文常況L12505_6：重定向數(shù)L12505_12：統(tǒng)計inter-frequency的重定向數(shù)這些由ENB發(fā)起的UE上下 請求的原因是網(wǎng)優(yōu)需要特別關(guān)注0:Re-establishmentissuccessfullyperformedwhenintraeNodeBhandoverprocedureisfdwhe 3:Re-establishmentissuccessfullyperformedwhenhandoverprocedureisongoing;theThecellonwhich5:Re-establishmentissuccessfullyperformedonservingcellandthereisnohandoverprocedureongoing.6:Re-establishmentissuccessfullyperformedwhenintraeNodeBinter-frequencyhandoverprocedureisongoing.Thecellonwhichthere-establishmentisrequestedisthecell.7:Re-establishmentissuccessfullyperformedwhenintereNodeBinter-frequencysameframestructure(TDDorFDD)handoveroverX2procedureisongoing.Thecellonwhichthere-establishmentisrequestedisthecell.8:Re-establishmentissuccessfullyperformedwhenintereNodeBinter-frequencysameframestructure(TDDorFDD)handoveroverS1procedureisongoing.Thecellonwhichthere-establishmentisrequestedisthecell.9:Re-establishmentissuccessfullyperformedwhenintereNodeBinter-frequencyotherframestructure(TDD<>FDD)handoveroverX2procedureisongoing.Thecellonwhichthere-establishmentisrequestedisthecell.10:Re-establishmentissuccessfullyperformedwhenintereNodeBinter-frequencyotherframe(TDD<>FDD)structurehandoveroverS1procedureisongoing.Thecellonwhichthere-establishmentisrequestedisthecell.11:Re-establishmentissuccessfullyperformedwhen ingPShandoverfromUTRANprocedureisongoing.Thecellonwhichthereestablishmentisrequestedisthe 0:Re-establishmentissuccessfullyperformedwhenintraeNodeBhandoverprocedureisongoing1:Re-establishmentissuccessfullyperformedwhenintereNodeBoverX2handoverprocedureis2:Re-establishmentissuccessfullyperformedwhenintereNodeBoverS1handoverprocedureis3:Re-establishmentissuccessfullyperformedwhenhandoverprocedureisongoing;theThecellonwhichthere-establishmentisperformedisnotthecell(oftheHOprocedure)4:Re-establishmentissuccessfullyperformedbutthereisnohandoverprocedureongoingwhenrequestforre-establishmentisreceived.Thecellonwhichthere-establishmentisrequestedisnottheservingcell.5:Re-establishmentissuccessfullyperformedonservingcellandthereisnohandoverprocedure6:Re-establishmentissuccessfullyperformedwhenintraeNodeBinter-frequencyhandoverprocedureisongoing.Thecellonwhichthere-establishmentisrequestedisthecell.7:Re-establishmentissuccessfullyperformedwhenintereNodeBinter-frequencysameframestructure(TDDorFDD)handoveroverX2procedureisongoing.Thecellonwhichthere-establishmentisrequestedisthecell.8:Re-establishmentissuccessfullyperformedwhenintereNodeBinter-frequencysameframestructure(TDDorFDD)handoveroverS1procedureisongoing.Thecellonwhichthere-establishmentisrequestedisthecell.9:Re-establishmentissuccessfullyperformedwhenintereNodeBinter-frequencyotherframestructure(TDD<>FDD)handoveroverX2procedureisongoing.Thecellonwhichthere-establishmentisrequestedisthecell.10:Re-establishmentissuccessfullyperformedwhenintereNodeBinter-frequencyotherframe(TDD<>FDD)structurehandoveroverS1procedureisongoing.Thecellonwhichthere-establishmentisrequestedisthecell.11:Re-establishmentissuccessfullyperformedwhen ingPShandoverfromUTRANprocedureisongoing.Thecellonwhichthereestablishmentisrequestedisthe 這種情況就是起始上下文建立失敗E-RAB上下文建立分配錯誤，即ENB上發(fā)InitialUEMessage消息后，在計時器規(guī)定時間內(nèi)沒有收到MME下發(fā)的INITIALCONTEXTSETUPREQUEST消息。因此在計時器超時后，ENB向MME發(fā)送UecontextreleaseRequest消息來UE上下文E文L250計MM1ee第二種是ENB檢查出S1存在故這兩種情況，ENB都會本地UE上下文，不會存在與MME交互的UecontextreleaseRequest與Uecontextreleasecommand，因此存在計數(shù)器LC12509來統(tǒng)計這類本地次數(shù)EeMbtERACa計時器，等待重定向成功后，MMEUecontextreleasecommand消息，若計時器超時仍未收到的話，第二個是E重定向到另外一個載頻的場景。當(dāng)eB收到終端上報的測量報告，需要觸發(fā)重定向到其他載頻時，向終端發(fā)送RoeReae消息，該消息包含了重定向的載頻信息。EB下發(fā)該消息的同時，向ME發(fā)送Ueteeases，E125012502:Re-establishmentissuccessfullyperformedwhenintereNodeBoverS1handoverprocedureisongoing3:Re-establishmentissuccessfullyperformedwhenhandoverprocedureisongoing;theThecellonwhichthere-establishmentisperformedisnotthecell(oftheHOprocedure)4:Re-establishmentissuccessfullyperformedbutthereisnohandoverprocedureongoingwhenrequestforre-establishmentisreceived.Thecellonwhichthere-establishmentisrequestedisnottheservingcell.5:Re-establishmentissuccessfullyperformedonservingcellandthereisnohandoverprocedureongoing.6:Re-establishmentissuccessfullyperformedwhenintraeNodeBinter-frequencyhandoverprocedureisongoing.Thecellonwhichthere-establishmentisrequestedisthecell.7:Re-establishmentissuccessfullyperformedwhenintereNodeBinter-frequencysameframestructure(TDDorFDD)handoveroverX2procedureisongoing.Thecellonwhichthere-establishmentisrequestedisthecell.8:Re-establishmentissuccessfullyperformedwhenintereNodeBinter-frequencysameframestructure(TDDorFDD)handoveroverS1procedureisongoing.Thecellonwhichthere-establishmentisrequestedisthecell.9:Re-establishmentissuccessfullyperformedwhenintereNodeBinter-frequencyotherframestructure(TDD<>FDD)handoveroverX2procedureisongoing.Thecellonwhichthere-establishmentisrequestedisthecell.10:Re-establishmentissuccessfullyperformedwhenintereNodeBinter-frequencyotherframe(TDD<>FDD)structurehandoveroverS1procedureisongoing.Thecellonwhichthere-establishmentisrequestedisthecell.11:Re-establishmentissuccessfullyperformedwhen ingPShandoverfromUTRANprocedureisongoing.Thecellonwhichthereestablishmentisrequestedisthe LR13.3featureL172431“CountersforVOIPIntroduction”addsCountersforAbnormalReleasesofUE1:Re-establishmentissuccessfullyperformedwhenintereNodeBoverX2handoverprocedure2:Re-establishmentissuccessfullyperformedwhenintereNodeBoverS1handoverprocedureis3:Re-establishmentissuccessfullyperformedwhenhandoverprocedureisongoing;theThecellonwhichthere-establishmentisperformedisnotthecell(oftheHOprocedure)4:Re-establishmentissuccessfullyperformedbutthereisnohandoverprocedureongoingwhenrequestforre-establishmentisreceived.Thecellonwhichthere-establishmentisrequestedisnottheservingcell.5:Re-establishmentissuccessfullyperformedonservingcellandther