LTE-Uu口信令流程详解汇总情况

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1、实用文档LTE空口信令流程详解以及相关优化案例汇总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）EPSMMAttachrequestEPSMMUnknown(0x0734)ULCCCHrrcConnectionRequestDLCCCHrrcConnectionSetupULDCCHrrcConnectionSetupCompleteDLDCCHrrcConnectionReconfigurationDLDCCHdlInformationTransferULDCCHrrcC

2、onnectionReconfigurationCompleteEPSMMSecurityprotectedNASmessageEPSMMAuthenticationrequestEPSMMAuthenticationresponseEPSMMUnknown(0x077B)ULDCCHulInformationTransferDLDCCHdlInformationTransferEPSMMSecurityprotectedNASmessageEPSMMSecuritymodecommandEPSMMSecuri

3、tymodecompleteEPSMMUnknown(0x0790)ULDCCHulInformationTransferDLDCCHueCapabilityEnquiryULDCCHueCapabilityInformationDLDCCHsecurityModeCommandDLDCCHrrcConnectionReconfigurationULDCCHrrcConnectionReconfigurationCompleteEPSMMSecurityprotectedNASmessageEPSMMAttac

4、hacceptEPSSMActivatedefaultEPSbearercontextrequestEPSSMActivatedefaultEPSbearercontextacceptEPSMMAttachcompleteEPSMMUnknown(0x072D)ULDCCHulInformationTransferDLDCCHrrcConnectionReconfigurationULDCCHrrcConnectionReconfigurationComplete标准文案实用文档Attach信令流程详解1.2、

5、Detach去附着信令流程（统计时延：红色的为开始和结束信令）EPSMMDetachrequestEPSMMUnknown(0x0734)ULDCCHulInformationTransferDLDCCHdlInformationTransferEPSMMSecurityprotectedNASmessageEPSMMDetachacceptDLDCCHrrcConnectionReleaseEPSSMPDNconnectivityrequestDetach信令流程详解2、呼叫业务信令流程2.1、UE主叫信令流

6、程（统计时延：红色的为开始和结束信令）EPSMMExtendedservicerequestULCCCHrrcConnectionRequestDLCCCHrrcConnectionSetupULDCCHrrcConnectionSetupCompleteDLDCCHrrcConnectionReconfigurationULDCCHrrcConnectionReconfigurationCompleteDLDCCHsecurityModeCommandDLDCCHrrcConnectionReconfigur

7、ationULDCCHrrcConnectionReconfigurationCompleteDLDCCHrrcConnectionReconfigurationULDCCHrrcConnectionReconfigurationComplete标准文案实用文档UE主叫信令流程详解2.2、UE被叫信令流程（统计时延：红色的为开始和结束信令）DLPCCHPagingEPSMMExtendedservicerequestULCCCHrrcConnectionRequestDLCCCHrrcConnectionSet

8、upULDCCHrrcConnectionSetupCompleteDLDCCHrrcConnectionReconfigurationULDCCHrrcConnectionReconfigurationCompleteDLDCCHsecurityModeCommandDLDCCHrrcConnectionReconfigurationULDCCHrrcConnectionReconf