LTE空口信令流程详解.docx

LTE空口信令流程详解1、附着信令流程1.1 、Attach附着信令流程（统计时延：红色的为开始和结束信令）EPS MMAttach requestEPS MMUnknown(0x0734)UL CCCHrrcConnectionRequestDL CCCHrrcConnectionSetupUL DCCHrrcConnectionSetupCompleteDL DCCHrrcConnectionReconfigurationDL DCCHdlInformationTransferUL DCCHrrcConnectionReconfigurationCompleteEPS MMSecurity protected NAS messageEPS MMAuthentication requestEPS MMAuthentication responseEPS MMUnknown(0x077B)UL DCCHulInformationTransferDL DCCHdlInformationTransferEPS MMSecurity protected NAS messageEPS MMSecurity mode commandEPS MMSecurity mode completeEPS MMUnknown(0x0790)UL DCCHulInformationTransferDL DCCHueCapabilityEnquiryUL DCCHueCapabilityInformationDL DCCHsecurityModeCommandDL DCCHrrcConnectionReconfigurationUL DCCHrrcConnectionReconfigurationCompleteEPS MMSecurity protected NAS messageEPS MMAttach acceptEPS SMActivate default EPS bearer context requestEPS SMActivate default EPS bearer context acceptEPS MMAttach completeEPS MMUnknown(0x072D)UL DCCHulInformationTransferDL DCCHrrcConnectionReconfigurationUL DCCHrrcConnectionReconfigurationComplete1.2、Detach去附着信令流程（统计时延：红色的为开始和结束信令）EPS MMDetach requestEPS MMUnknown(0x0734)UL DCCHulInformationTransferDL DCCHdlInformationTransferEPS MMSecurity protected NAS messageEPS MMDetach acceptDL DCCHrrcConnectionReleaseEPS SMPDN connectivity request1.3、前台测试中 Detach & Attach信令流程2、呼叫业务信令流程2.1、UE主叫信令流程（统计时延：红色的为开始和结束信令）EPS MMExtended service requestUL CCCHrrcConnectionRequestDL CCCHrrcConnectionSetupUL DCCHrrcConnectionSetupCompleteDL DCCHrrcConnectionReconfigurationUL DCCHrrcConnectionReconfigurationCompleteDL DCCHsecurityModeCommandDL DCCHrrcConnectionReconfigurationUL DCCHrrcConnectionReconfigurationCompleteDL DCCHrrcConnectionReconfigurationUL DCCHrrcConnectionReconfigurationComplete2.2、UE被叫信令流程（统计时延：红色的为开始和结束信令）DL PCCHPagingEPS MMExtended service requestUL CCCHrrcConnectionRequestDL CCCHrrcConnectionSetupUL DCCHrrcConnectionSetupCompleteDL DCCHrrcConnectionReconfigurationUL DCCHrrcConnectionReconfigurationCompleteDL DCCHsecurityModeCommandDL DCCHrrcConnectionReconfigurationUL DCCHrrcConnectionReconfigurationCompleteDL DCCHrrcConnectionReconfigurationUL DCCHrrcConnectionReconfigurationComplete2.3、前台测试中UE主叫、切换L3信令流程2.4、后台软件中掉线、接入、RRC连接的L3信令与对应的Event事件3、重选与切换信令流程3.1、小区重选信令流程DL BCCH:DL SCHsystemInformationBlockType1DL BCCH:DL SCHsystemInformationDL BCCH:DL SCHsystemInformationBlockType1DL BCCH:DL SCHsystemInformationBlockType1DL BCCH:DL SCHsystemInformationDL BCCH:DL SCHsystemInformationBlockType1DL BCCH:DL SCHsystemInformationBlockType1DL BCCH:DL SCHsystemInformationBlockType13.2、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）UL DCCHmeasurementReportDL DCCHrrcConnectionReconfigurationUL DCCHrrcConnectionReconfigurationCompleteDL DCCHrrcConnectionReconfigurationUL DCCHrrcConnectionReconfigurationCompleteDL BCCH:DL SCHsystemInformationBlockType1DL BCCH:DL SCHsystemInformationBlockType1DL BCCH:DL SCHsystemInformationBlockType1DL BCCH:DL SCHsystemInformationBlockType1DL BCCH:DL SCHsystemInformation3.3、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）UL DCCHmeasurementReportDL DCCHrrcConnectionReconfigurationUL DCCHrrcConnectionReconfigurationCompleteDL BCCH:DL SCHsystemInformationBlockType1DL DCCHrrcConn