24171b00LCS协议.docx
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24171b00LCS协议
3GPPTS24.171V11.0.0(2012-09)
TechnicalSpecification
3rdGenerationPartnershipProject;
TechnicalSpecificationGroupCoreNetworkandTerminals;
ControlPlaneLocationServices(LCS)procedures
intheEvolvedPacketSystem(EPS)
(Release11)
Thepresentdocumenthasbeendevelopedwithinthe3rdGenerationPartnershipProject(3GPPTM)andmaybefurtherelaboratedforthepurposesof3GPP..
Thepresentdocumenthasnotbeensubjecttoanyapprovalprocessbythe3GPPOrganizationalPartnersandshallnotbeimplemented.
ThisSpecificationisprovidedforfuturedevelopmentworkwithin3GPPonly.TheOrganizationalPartnersacceptnoliabilityforanyuseofthisSpecification.
Specificationsandreportsforimplementationofthe3GPPTMsystemshouldbeobtainedviathe3GPPOrganizationalPartners'PublicationsOffices.
Keywords
3GPP,LTE,LCS,EPS
3GPP
Postaladdress
3GPPsupportofficeaddress
650RoutedesLucioles-SophiaAntipolis
Valbonne-FRANCE
Tel.:
+33492944200Fax:
+33493654716
Internet
http:
//www.3gpp.org
CopyrightNotification
Nopartmaybereproducedexceptasauthorizedbywrittenpermission.
Thecopyrightandtheforegoingrestrictionextendtoreproductioninallmedia.
©2012,3GPPOrganizationalPartners(ARIB,ATIS,CCSA,ETSI,TTA,TTC).
Allrightsreserved.
UMTS™isaTradeMarkofETSIregisteredforthebenefitofitsmembers
3GPP™isaTradeMarkofETSIregisteredforthebenefitofitsMembersandofthe3GPPOrganizationalPartners
LTE™isaTradeMarkofETSIcurrentlybeingregisteredforthebenefitofitsMembersandofthe3GPPOrganizationalPartners
GSM®andtheGSMlogoareregisteredandownedbytheGSMAssociation
Contents
Foreword4
1Scope5
2References5
3Definitions,symbolsandabbreviations5
3.1Definitions5
3.2Abbreviations6
4General6
4.1Overview6
4.1.1NASaspect6
4.1.2LCSaspect6
4.2LCSSupportcapabilities6
4.2.1UEsupportofLCS6
4.2.2MMEsupportofLCS7
5SupportofLCSsignaling7
5.1General7
5.2LCSoperations7
5.2.0General7
5.2.1Networkinitiatedlocationservicesoperations7
5.2.1.1LocationNotification7
5.2.1.1.0General7
5.2.1.1.1Normaloperation8
5.2.1.2NetworkinitiatedPositioningInformationTransport9
5.2.2Mobileinitiatedlocationservicesoperations10
5.2.2.1MobileOriginatedLocationRequest(MO-LR)10
5.2.2.1.0General10
5.2.2.1.1Normaloperation11
5.2.2.2MobileinitiatedPositioningInformationTransport15
5.3LCSmessagesandcoding16
5.3.1MessagesforcommonLCSoperations16
5.3.2MessagesforE-UTRANLCSoperationsonly16
5.3.2.1LPPMessages16
5.3.2.1.1DownlinkPositioningInformationTransportusingLPPmessages16
5.3.2.1.2UplinkPositioningInformationTransportusingLPPmessages16
AnnexA(informative):
Changehistory17
Foreword
ThisTechnicalSpecificationhasbeenproducedbythe3rdGenerationPartnershipProject(3GPP).
ThecontentsofthepresentdocumentaresubjecttocontinuingworkwithintheTSGandmaychangefollowingformalTSGapproval.ShouldtheTSGmodifythecontentsofthepresentdocument,itwillbere-releasedbytheTSGwithanidentifyingchangeofreleasedateandanincreaseinversionnumberasfollows:
Versionx.y.z
where:
xthefirstdigit:
1presentedtoTSGforinformation;
2presentedtoTSGforapproval;
3orgreaterindicatesTSGapproveddocumentunderchangecontrol.
ytheseconddigitisincrementedforallchangesofsubstance,i.e.technicalenhancements,corrections,updates,etc.
zthethirddigitisincrementedwheneditorialonlychangeshavebeenincorporatedinthedocument.
1Scope
ThepresentdocumentspecifiestheoperationsandinformationcodingfortheNon-accessStratum(NAS)layerprotocolforsupportingtheLocationServices(LCS)intheEvolvedUniversalTerrestrialRadioAccessNetwork(E-UTRAN).
ThepresentdocumentisapplicabletotheUserEquipment(UE)andtotheMobilityManagementEntity(MME)intheEvolvedPacketSystem(EPS).
Thepresentdocumentisdevelopedinaccordancetothegeneralprinciplesstatedin3GPP TS23.271[1].
2References
Thefollowingdocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisionsofthepresentdocument.
-Referencesareeitherspecific(identifiedbydateofpublication,editionnumber,versionnumber,etc.)ornonspecific.
-Foraspecificreference,subsequentrevisionsdonotapply.
-Foranon-specificreference,thelatestversionapplies.Inthecaseofareferencetoa3GPPdocument(includingaGSMdocument),anon-specificreferenceimplicitlyreferstothelatestversionofthatdocumentinthesameReleaseasthepresentdocument.
[1]3GPP TR 21.905:
"Vocabularyfor3GPPSpecifications".
[2]3GPP TS 23.271:
"Functionalstage2descriptionofLCS".
[3]3GPP TS 24.301:
"Non-Access-Stratum(NAS)protocolforEvolvedPacketSystem(EPS)".
[4]3GPP TS 36.355:
"LTEPositioningProtocol".
[5]3GPP TS 24.080:
"Mobileradiointerfacelayer 3supplementaryservicesspecification;Formatsandcoding".
[6]3GPP TS 24.030:
"LCSSupplementaryserviceoperations;Stage3".
[7]3GPPTS29.171:
"DefinitionofSLsinterfaceforControlPlaneLCS".
[8]3GPPTS23.272:
"CircuitSwitched(CS)fallbackinEvolvedPacketSystem(EPS);Stage2".
3Definitions,symbolsandabbreviations
3.1Definitions
Forthepurposesofthepresentdocument,thetermsanddefinitionsgiveninTR 21.905 [1]andthefollowingapply.Atermdefinedinthepresentdocumenttakesprecedenceoverthedefinitionofthesameterm,ifany,inTR 21.905 [1].
Forthepurposesofthepresentdocument,thefollowingtermsanddefinitionsgivenin3GPP TS 23.272 [8]apply:
CSfallback
3.2Abbreviations
Forthepurposesofthepresentdocument,theabbreviationsgiveninTR 21.905[1]andthefollowingapply.Anabbreviationdefinedinthepresentdocumenttakesprecedenceoverthedefinitionofthesameabbreviation,ifany,inTR 21.905 [1].
EPSEvolvedPacketSystem
IEInformationElement
E-UTRANEvolvedUniversalTerrestrialRadioAccessNetwork
LCSLocationServices
LPPLTEPositioningProtocol
LTELongTermEvolution
MMEMobilityManagementEntity
MO-LRMobileOriginatedLocationRequest
MT-LRMobileTerminatedLocationRequest
NASNon-accessStratum
UEUserEquipment
4General
4.1Overview
4.1.1NASaspect
ToenabletransferofapplicationprotocolmessagesbetweentheMMEandtheUE,ageneric"container"messageisdefinedonthedownlink(DownlinkGenericNASTransportmessage)andtheuplink(UplinkGenericNASTransportmessage).Themessageprotocolandproceduresaredescribedin3GPPTS24.301[3].
4.1.2LCSaspect
LocationServices(LCS)usesthegenericcontainersprovidedbytheNASGenericTransport mechanismtotransferLCSsignallingmessagesbetweentheUEandthenetwork.
Currently,containerinthegenerictransportmessagescancarrythefollowingLCSinformation:
-LTEPositioningProtocol(LPP)messages(Referto3GPPTS36.355[4])
-BothdownlinkanduplinkLPPmessagesaresupported
-ARoutingIdentifieristransportedastheAdditionalInformationIEinUplink/DownlinkGenericNASTransportmessageforLPPmessages(Referto3GPPTS24.301[3])
-Locationservicesmessages
-MessagesforMO-LRoperations(Referto3GPPTS24.080[5])
-MessagesforMT-LRLCSlocationnotification(Referto3GPPTS24.080[5])
4.2LCSSupportcapabilities
4.2.1UEsupportofLCS
TheUEannouncestothenetworkitsabilitytosupportLCSnotificationmechanismand/orLPPmessagesusingtheUENetworkCapabilityIEdefinedin3GPPTS24.301[3].
4.2.2MMEsupportofLCS
ThenetworkannouncestotheUEitsabilitytosupportLCSMO-LRmechanisminE-UTRANandGERAN/UTRANusingtheEPSnetworkfeaturesupportIEdefinedin3GPPTS24.301[3].TheseinformationaretakenintoaccountbytheUE,inadditiontoUE’sLCSandCSFBcapabilitiesforUEtodeterminewhethertoinitiateEPC-MO-LRprocedureorCSfallbackprocedureforCS-MO-LRinGERAN/UTRANasspecifiedin3GPPTS23.272[8],subclause8.3.1.
5SupportofLCSsignaling
5.1General
ThisclausedefinestheE-UTRANLCSoperations(subclause5.2)andtheformatandcodingofthemessages(subclause5.3).
ThemessagesdefinedinthissubclausecanbetransportedintheDownlinkGenericNASTransportmessageandtheUplinkGenericNASTransportmessagedefinedin3GPPTS24.301[3].
5.2LCSoperations
5.2.0General
TheoperationsdefinedinthissubclauseareforE-UTRANLCSsupportonly.
TheMO-LRoperationandtheLocationNotificationoperationforE-UTRANLCSaresimilartothatforGERANandUTRANLCS.TheoperationsforGERANandUTRANlocationsignallingsupportaredefinedin24.030[6].
5.2.1Networkinitiatedlocationservicesoperations
5.2.1.1LocationNotification
5.2.1.1.0General
TheLocationNotificationoperationenablestheMMEtotriggertheend-usernotificationverificationprocessontheUEusingNASsignaling.TheNASsignaling(see5.2.1.1.1)aretransportedusingtheDownlinkGenericNASTransportmessageandtheUplinkGenericNASTransportmessagedefinedin3GPPTS24.301[3].Figure5.2.1.1.0-1illustratesanexampleoftheNASsignalingtransportforanEPC-MT-LRsession.
Figure5.2.1.1.0-1:
NASsignalingtransportforLocationNotification
NOTE:
TheoptionalAdditionalInformationIEoftheDownlink/UplinkGenericNASTransportmessageisnotusedwhentheLCSLocationNotificationsignalingaretransportedintheGenericMessageContainer.
5.2.1.1.1Normaloperation
ThenetworkinvokesalocationnotificationprocedurebysendingaREGISTERmessagecontainingaLCS-LocationNotificationinvokecomponenttotheUE.ThismaybesenteithertorequestverificationforMT-LRortonotifyaboutalreadyautho