LTE空口信令流程详解

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）EPSMMAttachrequestEPSMMUnknown(0x0734)ULCCCHrrcConnectionRequestDLCCCHrrcConnectionSetupULDCCHrrcConnectionSetupCompleteDLDCCHrrcConnectionReconfigurationDLDCCHdlInformationTransferULDCCHrrcConnectionReconfigurationCompleteEPSMMSecurityprotectedNASmessageEPSMMAuthenticationrequestEPSMMAuthenticationresponseEPSMMUnknown(0x077B)ULDCCHulInformationTransferDLDCCHdlInformationTransferEPSMMSecurityprotectedNASmessageEPSMMSecuritymodecommandEPSMMSecuritymodecompleteEPSMMUnknown(0x0790)ULDCCHulInformationTransferDLDCCHueCapabilityEnquiryULDCCHueCapabilityInformationDLDCCHsecurityModeCommandDLDCCHrrcConnectionReconfigurationULDCCHrrcConnectionReconfigurationCompleteEPSMMSecurityprotectedNASmessageEPSMMAttachacceptEPSSMActivatedefaultEPSbearercontextrequestEPSSMActivatedefaultEPSbearercontextacceptEPSMMAttachcompleteEPSMMUnknown(0x072D)ULDCCHulInformationTransferDLDCCHrrcConnectionReconfigurationULDCCHrrcConnectionReconfigurationComplete1.2、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)ULDCCHulInformationTransferDLDCCHdlInformationTransferEPSMMSecurityprotectedNASmessageEPSMMDetachacceptDLDCCHrrcConnectionReleaseEPSSMPDNconnectivityrequest1.3、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）EPSMMExtendedservicerequestULCCCHrrcConnectionRequestDLCCCHrrcConnectionSetupULDCCHrrcConnectionSetupCompleteDLDCCHrrcConnectionReconfigurationULDCCHrrcConnectionReconfigurationCompleteDLDCCHsecurityModeCommandDLDCCHrrcConnectionReconfigurationULDCCHrrcConnectionReconfigurationCompleteDLDCCHrrcConnectionReconfigurationULDCCHrrcConnectionReconfigurationComplete2.2、UE被叫信令流程（统计时延：红色的为开始和结束信令）DLPCCHPagingEPSMMExtendedservicerequestULCCCHrrcConnectionRequestDLCCCHrrcConnectionSetupULDCCHrrcConnectionSetupCompleteDLDCCHrrcConnectionReconfigurationULDCCHrrcConnectionReconfigurationCompleteDLDCCHsecurityModeCommandDLDCCHrrcConnectionReconfigurationULDCCHrrcConnectionReconfigurationCompleteDLDCCHrrcConnectionReconfigurationULDCCHrrcConnectionReconfigurationComplete2.3、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DLBCCH:DLSCHsystemInformationBlockType1DLBCCH:DLSCHsystemInformationDLBCCH:DLSCHsystemInformationBlockType1DLBCCH:DLSCHsystemInformationBlockType1DLBCCH:DLSCHsystemInformationDLBCCH:DLSCHsystemInformationBlockType1DLBCCH:DLSCHsystemInformationBlockType1DLBCCH:DLSCHsystemInformationBlockType13.2、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）ULDCCHmeasurementReportDLDCCHrrcConnectionReconfigurationULDCCHrrcConnectionReconfigurationCompleteDLDCCHrrcConnectionReconfigurationULDCCHrrcConnectionReconfigurationCompleteDLBCCH:DLSCHsystemInformationBlockType1DLBCCH:DLSCHsystemInformationBlockType1DLBCCH:DLSCHsystemInformationBlockType1DLBCCH:DLSCHsystemInformationBlockType1DLBCCH:DLSCHsystemInformation3.3、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）ULDCCHmeasurementReportDLDCCHrrcConnectionReconfigurationULDCCHrrcConnectionReconfigurationCompleteDLBCCH:DLSCHsystemInformationBlockType1DLDCCHrrcConnectionReconfigurationULDCCHrrcConnectionReconfigurationComplete4、跟踪区域更新信令流程4.1、新小区所属跟踪区域不在终端跟踪区域列表中信令流程4.2、周期性跟踪区域更新信令流程4.2、ENODEB间同频切换及TAU更新流程4.2、ENODEB间同频切换MR中的消息