VoLTE信令分析手册.pdf

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1、VoLTE信令分析手册部门TDD网络基础性能部作者张艳丽00257121日期2015-4目录VoLTE信令分析手册..................................................................................................................................11前言.....................................................................

2、....................................................................................22初始注册................................................................................................................................................32.1Initialattach.........

3、........................................................................................................................42.1.1AttachRequest（piggybackedPDNconnectivityrequest）.............................................42.1.2AttachAccept(piggybackedActivatedef

4、aultEPSbearercontextrequest).........................52.2IMSPDNConnection建立........................................................................................................62.2.1PDNconnectivityrequest.....................................................

5、..............................................62.2.2E-RABSETUPREQUEST.................................................................................................82.2.3ActivatedefaultEPSbearercontextrequest..................................................

6、....................82.3IMS域SIP注册........................................................................................................................92.3.1SIPRegister..........................................................................................

7、...........................102.3.2401Unauthorized.............................................................................................................122.3.3SIPRegister....................................................................................

8、.................................132.3.4SIP200OK......................................................................................................................143VoLTE呼叫VoLT