LTEppt\LTE空口信令流程详解

举例： Attach附着信令流程 （统计时延：红色的为开始和结束信令） EPS MM Attach request EPS MM Unknown(0x0734) UL CCCH rrcConnectionRequest DL CCCH rrcConnectionSetup UL DCCH rrcConnectionSetupComplete DL DCCH rrcConnectionReconfiguration DL DCCH dlInformationTransfer UL DCCH rrcConnectionReconfigurationComplete EPS MM Security protected NAS message EPS MM Authentication request EPS MM Authentication response EPS MM Unknown(0x077B) UL DCCH ulInformationTransfer DL DCCH dlInformationTransfer EPS MM Security protected NAS message EPS MM Security mode command EPS MM Security mode complete EPS MM Unknown(0x0790) UL DCCH ulInformationTransfer DL DCCH ueCapabilityEnquiry UL DCCH ueCapabilityInformation DL DCCH securityModeCommand DL DCCH rrcConnectionReconfiguration UL DCCH rrcConnectionReconfigurationComplete EPS MM Security protected NAS message EPS MM Attach accept EPS SM Activate default EPS bearer context request EPS SM Activate default EPS bearer context accept EPS MM Attach complete EPS MM Unknown(0x072D) UL DCCH ulInformationTransfer DL DCCH rrcConnectionReconfiguration UL DCCH rrcConnectionReconfigurationComplete Attach信令流程详解各IE内容