LTE各种码介绍.pdf

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1、UEIdentification:GUTIGUTI:•GloballyUniqueTemporaryIdentity•ItisdynamicallyallocatedbytheservingMME•ItsmainpurposeistoavoidusageofIMSIonair•InternallytheallocatingMMEcantranslateGUTIintoIMSIandviceversa•TheGUTIconsistsof2components:GUMMEIandM-TMSIGUTIGUMMEIM-TMSIGUMMEI:GlobalUniqueMMEIdentity:M-TMSI:

2、TemporaryIdentityoftheMMEthatallocatedtheGUTIIdentityoftheUEwithinItContains:andspecificMME.MCC+MNC+MMEgroupID(MMEGI)+MMECode(MMEC)FurtherReading:S-TMSIS-TMSI:•TheSAETMSI(S-TMSI)isashortenedformoftheGUTI•ItisusedtoidentifytheUEovertheradiopathandisincludedintheRRCconnectionrequestandpagingmessages•T

3、heS-TMSIcontainstheMMECandM-TMSIcomponentsoftheGUTI•Note,however,thattheS-TMSIdoesnotincludetheMMEGI—thatis,theMMEpoolcomponentS-TMSIMCCMNCMMEGIMMECM-TMSIGUMMEIGUTIUEIdentifications:C-RNTIC-RNTI:•CellRadioNetworkTemporaryIdentity•C-RNTIisallocatedbytheeNBservingaUEwhenitisinactivemode(RRC_CONNECTED)

4、•ThisisatemporaryidentityfortheuseronlyvalidwithintheservingcelloftheUE•ItisreleaseassoonastheUEmovestoidlestate(RRC_IDLE)•Itisexclusivelyusedforradiomanagementprocedures.UEIdentifications:S1-APUEIDS1-APUEID:•S1ApplicationProtocolUserEquipmentIdentity.•TwoadditionaltemporaryidentifiersallocatedbyeNB

5、andMME:-eNBS1-APUEID-MMES1-APUEID•TheirpurposeistoallowefficientimplementationofS1controlsignaling(S1AP=S1ApplicationProtocol)•TheyshallalloweasydistributionofS1signalingmessagesinsideMMEandeNB.•NOTE:ThisconceptissimilartoSCCPlocalreferencesknownfromIuorAinterfacein3G/2G.UEIdentificationsSummaryHSSe

6、NBTAI1123IMSITAI1TAI1MMEMCCMNCMSINTAI1TAI1TAI2eNBTAI2TAI2TAI2TAI2TAI2CellIdentityTAI2MMEIdentityTAI2TAI2S-eNB123TAI2TAI2C-RNTITAI3S-MMETAI3TAI3eNBS1-APUE-ID

7、MMES1-APUE-IDTAI3GUTIGUMMEIM-TMSIIMSIInternationalMobileSubscriberIdentityTAITrackingAreaIdentity(MCC+MNC+TAC)GUTIGloballyUniqueTemporaryIdenti

8、tyS-MMEServingMMEC-RNTICellRadioNetworkTemporaryIdentityS-eNBServingE-NodeB