LTE空口信令流程.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 DCCHrrcConnectionReconfigurationComplete 1.2、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 CCCH