wcdma系统掉话概述

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1、第二章WGDMA系统掉话概述一、CS和PS正常释放的信令流程在介绍掉话之前我们先来了解在WCDMA系统屮CS、PS的正常呼叫与释放的信令流程:1、CS业务信令流程I:bb/1:bTJE主叫CS业务信令流程RRCCONNECTIONREQUESTSERVICEREQUESTFRRCCONNECTIONSETUP曜RRCCONNECTIONSETUPCOMPLETE—INITIALDIRECTTRANSFER二■戸AUTHREQUESTAUTHRESPONSE‘SECURITYMODECOMMAND►SECURITYMODECOMMANDSECURITYMODECOMPLET

2、E►SECURITYMODECOMPLETE9SETUP衊CALLPROC^

3、rbRABASSIGNMENTREQUESTiRBSETUPCOMPLETE•、RABASSIGNMENTRESPONSE‘ALERTINGiCONNECTwCONNECTACKNOWLEDGEII事UEUTRANCN•RRC连接建立♦初始直传/业务请求•鉴权•加密•建立•RAB指配•被叫振钤•被叫应答♦通话建立2、GENEXAssistant对CS路测数据分析首先，UE上发的RRCConnectionRequest消息，在本条消息屮包含了业务建立原因为会话类，若是主叫为longinatingC

4、onversationalCall(0)

5、，若是被叫为并包含了移动国家码，移动网络码等信息。有的时候我们会看到多条RRCConnectionRequest消息，有两种惜况:一，发生了小区重选，UE在新的小区下重新发送RRCConnectionRequest消息。二，当UE上发RRCConnectionRequest后在规定的时间内没有收到RNC下发的RRCConnectionSetup消息，这时UE会重发一次，如丁图所示：57891011122009-09-1101:11:41.6052009-09-1101:11:41.6772009-09-11012009-09-11

6、012009-09-11012009-09-11012009-09-11012009-09-1101onno-no-i1m11:42.07911:42.22611:42.32911:42.34511:42.34711:42.53611/19rppWCDMARRCDLBCCK:BCKSchedulingBlockl9WCDMARRC

7、ULJZCCH

8、RRCConnectionRequest16WCDMARRCULCCCHRRCConnectionRequest16WCDMARRCDLCCCHRRCConnectionSetup119WCDMARRCULJDCCHRRCCon

9、nectionSetupComplete42NASUplinkCMServiceRequest13WCDMARRCULDCCHInitialDirectTransfer22tfCDMARRCDL—DCCHMeasurementControl91wrnMAppptitnrru汽，，V，冬▼,MAAQ70D0-B83010-0001——1011011100000110---00000-一0Digit:0x0(0)Digit:0xl(1)lac：1011011100000110(B706)建顿因：主叫会establislutentCause

10、origin色tirtgConver

11、s敦tionalCall(0)

12、protocolErrorlndicator：noError(0)measuredResuitsOnRACHcurrentCell…modeSpecificlnfofdd..measurementQuantity00-.Jmnc•Digit:0x0(0)..Digit：Qxl(1)o98cpich-Ec-H0：0xl3(19)[-15.00]10011——:32009-09-110129:18.187WCDHARRCDLBCXH:BCKSchedulirLZBIockl42009-09-11"oT29:18.^56fWCDMARRCIUL—

13、CCCHIRRCConnectionRequest52009-09-110129:18457WCDHARRCDLCCCHRRCConnectionSetup62009-09-110129:18535WCDMARRCULJCCHRRCConnectionSetupComplete72009-09-110129:18543NASUplinkCMServiceRequest82009-09-110129:18544WCDMARRCUL一DCCHInitialDirectTransfer92009-09-110129:18774WCD