重要LTE基本信令流程.doc

1、附着信令流程 Attach附着信令流程（统计时延：红色的为开始和结束信令）Attach requestUnknown(0x0734)（未知的）rrcConnectionRequestrrcConnectionSetuprrcConnectionSetupCompleterrcConnectionReconfiguration(测量配置)dlInformationTransfer(信息传递)rrcConnectionReconfigurationCompleteSecurity(安全) protected (受保护)NAS messageAuthentication(鉴定和证明) requestAuthentication response（回复相应）Unknown(0x077B)ulInformationTransfer（转移，调任）dlInformationTransferSecurity(网络安全技术协议) protected （保护什么安全）NAS messageSecurity mode(方式，风格) command（命令指挥）Security mode completeUnknown(0x0790)ulInformationTransfer（转移）ueCapabilityEnquiry（询问能力）ueCapabilityInformation（通知能力）securityModeCommandrrcConnectionReconfiguration（重新配置）rrcConnectionReconfigurationComplete（完整的，圆满地）Security protected NAS messageAttach （附着）acceptActivate 激活default默认 EPS bearer搬运 context背景 requestActivate default EPS bearer context accept（接受）Attach completeUnknown(0x072D)ulInformationTransferrrcConnectionReconfigurationrrcConnectionReconfigurationComplete Detach去附着信令流程（统计时延：红色的为开始和结束信令）Detach requestUnknown(0x0734)ulInformationTransferdlInformationTransferSecurity protected NAS messageDetach acceptrrcConnectionRelease(释放)PDN connectivity (联接能力)request2、呼叫业务信令流程 UE主叫信令流程（统计时延：红色的为开始和结束信令）Extended(扩展,扩大) service requestrrcConnectionRequestrrcConnectionSetuprrcConnectionSetupCompleterrcConnectionReconfiguration(重新配置)rrcConnectionReconfigurationCompletesecurityModeCommandrrcConnectionReconfigurationrrcConnectionReconfigurationCompleterrcConnectionReconfigurationrrcConnectionReconfigurationCompleterrcConnectionRelease UE被叫信令流程（统计时延：红色的为开始和结束信令）（不含鉴权信令流程）systemInformationBlock（阻止）Type（类型）1systemInformationBlockType1Paging（分页，寻呼）Extended （延伸的）service requestrrcConnectionRequestrrcConnectionSetuprrcConnectionSetupCompleterrcConnectionReconfigurationrrcConnectionReconfigurationCompletesecurityModeCommandrrcConnectionReconfigurationrrcConnectionReconfiguration（重新配置）CompleterrcConnectionReconfigurationrrcConnectionReconfigurationComplete（含鉴权信令流程）systemInformationBlockType1PagingExtended service requestrrcConnectionRequestrrcConnectionSetuprrcConnectionSetupCompleterrcConnectionReconfigurationrrcConnectionReconfigurationCompletedlInformationTransferSecurity protected NAS messageAuthentication（身份验证） requestAuthentication response（响应）Unknown(0x077B)ulInformationTransferdlInformationTransferSecurity protected NAS messageSecurity mode commandSecurity mode completeUnknown(0x0790)ulInformationTransfersecurityModeCommandrrcConnectionReconfigurationrrcConnectionReconfigurationCompleterrcConnectionReconfigurationrrcConnectionReconfigurationComplete3、重选与切换信令流程（重要） 小区重选信令流程systemInformationBlock（切断阻止）Type1systemInformationsystemInformationBlockType1systemInformationBlockType1systemInformationsystemInformationBlockType1systemInformationBlockType1systemInformationBlockType1 基站内同频切换信令流程（统计时延：红色的为开始和结束信令）Measurement（测量）Report（报告）rrcConnectionReconfiguration（重新配子）rrcConnectionReconfigurationCompleterrcConnectionReconfigurationrrcConnectionReconfigurationCompletesystemInformationBlockType1systemInformationBlockType1systemInformationBlockType1systemInformationBlockType1systemInformation 基站间同频切换信令流程（统计时延：红色的为开始和结束信令）measurementReportrrcConnectionReconfigurationrrcConnectionReconfigurationCompletesystemInformationBlockType1rrcConnectionReconfigurationrrcConnectionReconfigurationComplete4、跟踪区域更新信令流程 新小区所属跟踪区域不在终端跟踪区域列表中信令流程 周期性跟踪区域更新信令流程Reestablish(恢复重建)attempt企图 reject拒绝驳回tracking area update简称TAU(不是很懂)当手机在GPRS网络或E-UTRAN网络中完成附着后，如果出现如下情况，会触发Tracking Area Update过程。- 手机发现进入到了一个新的TA，并且这TA不在TAIs 列表中。- 到了TA更新的周期- 当手机从UTRAN通过重选进入E-UTRAN时期状态为PMM_Connected。- 手机重选 E-UTRAN时，其状态为GPRS READY- 手机重选到E-UTRAN时TIN为P-TMSI- RRC连接释放时，释放原因load re-balancing TAU required- 手机的RRC层通知UE的NAS层，RRC连接失败- 手机如下参数发生变化： UE Network Capability MS Network Capability UE Specific DRX Parameters MS