ETSI TS 100 605 V7.1.0 (1999-12) TechnicalSpecification Digital cellular telecommunications system (Phase 2+); Information element mapping between Mobile Station - Base Station System (MS - BSS) and Base Station System - Mobile-services Switching Centre (BSS - MSC); Signalling procedures and the Mobile Application Part (MAP) (GSM 09.10 version 7.1.0 Release 1998) R GLOBALSYSTEM FOR MOBILECOMMUNICATIONS (GSM09.10version7.1.0Release1998) 2 ETSITS100605V7.1.0(1999-12) Reference RTS/SMG-030910Q7R1 Keywords Digitalcellulartelecommunicationssystem, GlobalSystemforMobilecommunications(GSM) ETSI Postaladdress F-06921SophiaAntipolisCedex-FRANCE Officeaddress 650RoutedesLucioles-SophiaAntipolis Valbonne-FRANCE Tel.:+33492944200 Fax:+33493654716 SiretN°34862356200017-NAF742C Associationàbutnonlucratifenregistréeàla Sous-PréfecturedeGrasse(06)N°7803/88 Internet [email protected] IndividualcopiesofthisETSIdeliverable canbedownloadedfrom http://www.etsi.org Ifyoufinderrorsinthepresentdocument,sendyour commentto:[email protected] Importantnotice ThisETSIdeliverablemaybemadeavailableinmorethanoneelectronicversionorinprint.Inanycaseofexistingor perceiveddifferenceincontentsbetweensuchversions,thereferenceversionisthePortableDocumentFormat(PDF). 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ETSI (GSM09.10version7.1.0Release1998) 3 ETSITS100605V7.1.0(1999-12) Contents IntellectualPropertyRights................................................................................................................................4 Foreword............................................................................................................................................................4 1 Scope........................................................................................................................................................5 1.1 References..........................................................................................................................................................5 1.2 Abbreviations.....................................................................................................................................................6 2 Classificationofinterworkingcases........................................................................................................6 2.1 Transparentprocedures......................................................................................................................................6 2.2 Non-transparentprocedures................................................................................................................................6 3 InterworkingintheMSC,Transparentcase............................................................................................7 3.1 General...............................................................................................................................................................7 3.2 Locationareaupdating.......................................................................................................................................9 3.3 DetachIMSI.....................................................................................................................................................10 3.4 Routeingareaupdating.....................................................................................................................................11 3.5 Authentication..................................................................................................................................................12 3.6 RetrievaloftheIMSIfromtheMS...................................................................................................................13 3.7 ReallocationofTMSI.......................................................................................................................................13 3.8 RetrievaloftheIMEIfromtheMS..................................................................................................................14 3.9 Tracingsubscriberactivity...............................................................................................................................14 4 Non-transparentcases............................................................................................................................15 4.1 General.............................................................................................................................................................15 4.2 Outgoingcallset-up(MSoriginatingcall).......................................................................................................15 4.3 Incomingcallset-up(MSterminatingcall)......................................................................................................19 4.4 Ciphermodesetting..........................................................................................................................................21 4.5 Inter-MSCHandover........................................................................................................................................21 4.5.1 BasicInter-MSCHandover.........................................................................................................................21 4.5.2 SubsequentInter-MSCHandoverbacktoMSC-A.....................................................................................27 4.5.3 SubsequentInter-MSCHandovertothirdMSC.........................................................................................31 4.5.4 BSSAPMessagestransferonE-Interface...................................................................................................35 4.5.5 ProcessinginMSC-B,andinformationtransferonE-interface..................................................................36 4.5.5.1 EncryptionInformation.........................................................................................................................36 4.5.5.2 ChannelType........................................................................................................................................37 4.5.5.3 Classmark..............................................................................................................................................37 4.5.5.4 DownlinkDTX-Flag.............................................................................................................................38 4.5.5.5 Priority..................................................................................................................................................38 4.5.5.6 MSC/BSC-InvokeTraceInformationElements....................................................................................38 4.5.5.7 LSAIdentifierList................................................................................................................................38 4.5.6 OverviewoftheTechnicalSpecificationsGSMinterworkingfortheInter-MSCHandover.....................39 AnnexA(informative): Documentchangehistory..............................................................................42 History..............................................................................................................................................................43 ETSI (GSM09.10version7.1.0Release1998) 4 ETSITS100605V7.1.0(1999-12) Intellectual Property Rights IPRsessentialorpotentiallyessentialtothepresentdocumentmayhavebeendeclaredtoETSI.Theinformation pertainingtotheseessentialIPRs,ifany,ispubliclyavailableforETSImembersandnon-members,andcanbefound inSR000314:"IntellectualPropertyRights(IPRs);Essential,orpotentiallyEssential,IPRsnotifiedtoETSIinrespect ofETSIstandards",whichisavailablefromtheETSISecretariat.LatestupdatesareavailableontheETSIWebserver (http://www.etsi.org/ipr). PursuanttotheETSIIPRPolicy,noinvestigation,includingIPRsearches,hasbeencarriedoutbyETSI.Noguarantee canbegivenastotheexistenceofotherIPRsnotreferencedinSR000314(ortheupdatesontheETSIWebserver) whichare,ormaybe,ormaybecome,essentialtothepresentdocument. Foreword ThisTechnicalSpecification(TS)hasbeenproducedbytheSpecialMobileGroup(SMG). ThepresentdocumentspecifiesInformationelementmappingbetweenMobileStation-BaseStationSystem(MS- BSS)andBaseStationSystem-Mobile-servicesSwitchingCentre(BSS-MSC)SignallingproceduresandtheMobile ApplicationPart(MAP)withinthedigitalcellulartelecommunicationssystem. ThecontentsofthepresentdocumentissubjecttocontinuingworkwithinSMGandmaychangefollowingformalSMG approval.ShouldSMGmodifythecontentsofthepresentdocument,itwillbere-releasedbySMGwithanidentifying changeofreleasedateandanincreaseinversionnumberasfollows: Version7.x.y where: 7 indicatesGSMPhase2+Release1998; x theseconddigitisincrementedforallothertypesofchanges,i.e.technicalenhancements,corrections, updates,etc.; y thethirddigitisincrementedwheneditorialonlychangeshavebeenincorporatedinthespecification. ETSI (GSM09.10version7.1.0Release1998) 5 ETSITS100605V7.1.0(1999-12) 1 Scope Thescopeofthepresentdocumentis: i) toprovideadetailedspecificationfortheinterworkingbetweeninformationelementscontainedinlayer3 messagessentontheMS-MSCinterface(CallControlandMobilityManagementpartsofGSM04.08)and parameterscontainedinMAPservicessentovertheMSC-VLRinterface(GSM09.02)wheretheMSCactsasa transparentrelayofinformation; ii) toprovideadetailedspecificationfortheinterworkingbetweeninformationelementscontainedinBSSMAP messagessentontheBSC-MSCinterface(GSM08.08)andparameterscontainedinMAPservicessentoverthe MSC-VLRinterface(GSM09.02)wheretheMSCactsasatransparentrelayofinformation; iii)toprovideadetailedspecificationfortheinterworkingasini)andii)abovewhentheMSCalsoprocessesthe information. InterworkingforsupplementaryservicesisgiveninGSM09.11.Interworkingfortheshortmessageserviceisgivenin GSM03.40andGSM04.11.InterworkingbetweenthecallcontrolsignallingofGSM04.08andthePSTN/ISDNis giveninGSM09.03,GSM09.07andGSM09.08.Interworkingbetweenthe'A'and'E'interfacesforinter-MSC handoversignallingisgiveninGSM09.07and09.08. 1.1 References Thefollowingdocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisionsofthepresent document. • Referencesareeitherspecific(identifiedbydateofpublication,editionnumber,versionnumber,etc.)or non-specific. • Foraspecificreference,subsequentrevisionsdonotapply. • Foranon-specificreference,thelatestversionapplies. • Anon-specificreferencetoanETSshallalsobetakentorefertolaterversionspublishedasanENwiththesame number. • ForthisRelease1998document,referencestoGSMdocumentsareforRelease1998versions(version7.x.y). [1] GSM01.04:"Digitalcellulartelecommunicationssystem(Phase2+);Abbreviationsand acronyms". [2] GSM03.09:"Digitalcellulartelecommunicationssystem(Phase2+);Handoverprocedures". [3] GSM03.40:"Digitalcellulartelecommunicationssystem(Phase2+);Technicalrealizationofthe ShortMessageService(SMS)PointtoPoint(PP)". [4] GSM04.08:"Digitalcellulartelecommunicationssystem(Phase2+);Mobileradiointerfacelayer 3specification". [5] GSM04.10:"Digitalcellulartelecommunicationssystem(Phase2+);Mobileradiointerfacelayer 3 Supplementaryservicesspecification Generalaspects". [6] GSM04.11:"Digitalcellulartelecommunicationssystem(Phase2+);Point-to-Point(PP)Short MessageService(SMS)supportonmobileradiointerface". [7] GSM08.08:"Digitalcellulartelecommunicationssystem(Phase2+);MobileSwitchingCentre- BaseStationSystem(MSC-BSS)interface Layer3specification". [8] GSM09.02:"Digitalcellulartelecommunicationssystem(Phase2+);MobileApplicationPart (MAP)specification". ETSI (GSM09.10version7.1.0Release1998) 6 ETSITS100605V7.1.0(1999-12) [9] GSM09.03:"Digitalcellulartelecommunicationssystem(Phase2+);Signallingrequirementson interworkingbetweentheIntegratedServicesDigitalNetwork(ISDN)orPublicSwitched TelephoneNetwork(PSTN)andthePublicLandMobileNetwork(PLMN)". [10] GSM09.07:"Digitalcellulartelecommunicationssystem(Phase2+);Generalrequirementson interworkingbetweenthePublicLandMobileNetwork(PLMN)andtheIntegratedServices DigitalNetwork(ISDN)orPublicSwitchedTelephoneNetwork(PSTN)". [11] GSM09.08:"Digitalcellulartelecommunicationssystem(Phase2+);ApplicationoftheBase StationSystemApplicationPart(BSSAP)ontheE-interface". [12] GSM09.11:"Digitalcellulartelecommunicationssystem(Phase2+);Signallinginterworkingfor supplementaryservices". 1.2 Abbreviations AbbreviationsusedinthisspecificationarelistedinGSM01.04. 2 Classification of interworking cases 2.1 Transparent procedures ThefollowingMSCproceduresrequiretransparentmappingofBSSAPinformationelementsintoMAPparametersand viceversa(seeGSM09.02fordefinitionsandtheuseoftheprocedures): - updatelocationarea; - detachIMSI; - forwardnewTMSI; - provideIMSI; - obtainIMEI; - checkIMEI; - authenticate; - tracesubscriberactivity. 2.2 Non-transparent procedures ProceduresinthisclassrequireprocessingintheMSCandinformationelementmapping.Theseproceduresinclude thoserelatedto: - outgoingcallset-up; - incomingcallset-up; - handover; - ciphermodesetting. ETSI (GSM09.10version7.1.0Release1998) 7 ETSITS100605V7.1.0(1999-12) 3 Interworking in the MSC, Transparent case 3.1 General WhentheMSCreceivesaforwardmessagefromtheBSS(possiblyforwardedtransparentlyfromtheMS),itwillinvoke thedesiredMAPserviceandestablishacrossreferencebetweentheBSSAPprocedureandtheMAPprocedureinorder toreturntheresultoftheoperationtotheBSS(whichmayforwardittransparentlytotheMS.Thecrossreferenceis deletedwhentheMSCterminatestheMAPprocedure. PositiveornegativeresultsoftheMAPprocedurearereturnedintheappropriateBSSAPmessage. TheparametersoftheforwardBSSAPmessagearemappedbyaone-to-onemappingintotheparametersoftheMAP service.However,insomecasesparametersreceivedontheradiopathmaybesuppressedattheMSCbecausetheyare relatedtoanotherprotocolentity,e.g.informationrelatedtoRR-managementmaybeincludedinMM-management messages.Similarly,parametersreceivedinthe(positive)MAPserviceresponsearemappedone-to-oneintoparameters ofthecorrespondingbackwardBSSAPmessage. Anegativeoutcome,ascarriedinvariousMAPservices(MAPspecificserviceresponse,MAP_U_ABORT, MAP_P_ABORT,MAP_NOTICEandprematureMAP_CLOSE,seeGSM09.02fordefinitions)ismappedintoa causevalueintherequiredbackwardBSSAPmessage.InthiscaseseveralnegativeresultsofMAPmaybemappedinto thesameBSSAPcausevalue,i.e.withoutdiscriminationbetweenthesenegativeresults. NOTE: ForO&Mpurposes,theMAPprocedureentityintheMSCmayrequireamoredetailedoverviewof negativeresultsthantheMS. ETSI (GSM09.10version7.1.0Release1998) 8 ETSITS100605V7.1.0(1999-12) Theseprinciplesareillustratedinfigure1. 04.08 (08.08) MAP service forward message request ------------> -----------> +-----------+ +---------+ |information| |parameter| | element | | | +-----------+ one-to-one +---------+ +----->-------------------------------->----+ mapping MAP service positive ack response <------------ <----------- +-----------+ +---------+ |information| |parameter| | element | | | +-----------+ one-to-one +---------+ +-----<--------------------------------<----+ mapping negative negative cause response <------------ <----------- +-----------+ +---------+ | cause | | cause | +-----------+ one-to-one or many-to-one +---------+ +-----<--------------------------------<----+ mapping Figure1:IllustrationofmappingprinciplesintheMSC Foreachofthetransparentoperationslistedinsubclause2.1,thefollowingformatisusedtoshowthemapping. ---------------------------------------------------------------- | 04.08 o┼r 08.08 09.02 |Notes ┼ -------- ------------------------------------------------- ----- Forward | MS/BSS to MSC MSC to VLR | message | message name MAP service request | | information element 1 <---> parameter 1 | | informa┼tion element 2 <---> parameter 2 | ┼ -------- ------------------------------------------------- ----- Positive| MSC to MS/BSS VLR to MSC | result | message name positive response | | information element 1 <---> parameter 1 | | informa┼tion element 2 <---> parameter 2 | ┼ -------- ------------------------------------------------- ----- Negative| MSC to MS/BSS VLR to MSC | result | message name negative response | | cause 1 <---> cause 1 | | cause 2 <---> cause 2 | | cause 3 <---> MAP_U/P_ABORT | | cause 3 <---> MAP_NOTICE | | cau┴se 3 <---> MAP_CLOSE | ┴ -------- ------------------------------------------------- ----- EquivalentmappingprinciplesapplyforoperationsinvokedbytheVLRtowardstheBSS/MS.However,negative resultsaregenerallynotreceivedfromtheBSS/MSbutaregeneratedintheMSC.Therefore,forsuchoperationsthe interworkingfornegativeresultsisnotnormallyshown. ETSI (GSM09.10version7.1.0Release1998) 9 ETSITS100605V7.1.0(1999-12) 3.2 Location area updating --------------------------------------------------------------- ┼| 08.08/04.08 09.02 |┼Notes -------- ------------------------------------------------ ----- Forward | COMPLETE LAYER 3 INFO MAP_UPDATE_LOCATION_ | message | (LOCATION UPDATING AREA request | | REQUEST) | | | | Location area id Previous LA Id | | Mobile identity IMSI or TMSI | | Mobile station | | classmark 1 - | 4 | Ciphering key CKSN | | seq number | | Location update Location update | | type type | 3 | Cell identifier Target LA Id | 1 |┼ Chosen channel - |┼ -------- ------------------------------------------------ ----- Positive| DTAP (LOCATION MAP_UPDATE_LOCATION | results | UPDATING ACCEPT) AREA response | | | | Location area identity - | | Mobile identity - | 5 |┼ Follow on proceed - |┼ -------- ------------------------------------------------ ----- Negative| DTAP (LOCATION MAP_UPDATE_LOCATION | results | UPDATING REJECT) AREA response | | | | IMSI unknown in HLR Unknown subscriber | 6 | Network failure Unknown LA | 2 | Roaming not allowed: | | PLMN not allowed PLMN not allowed | | LA not allowed LA not allowed | | Roaming not National Roaming | | allowed in this LA not allowed | | PLMN not allowed Operator | | determined barring| | Illegal MS Illegal subscriber | | Illegal ME Illegal equipment | | Network failure System Failure | | Network failure Unexpected data value| | Network failure MAP_U/P_ABORT | | Network failure MAP_NOTICE | |┴ Network failure MAP_CLOSE |┴ -------- ------------------------------------------------ ----- NOTE1: TheTargetLAIdparameterisderivedbytheMSCfromtheCellidentifierinformationelement. NOTE2: TheUnknownLAerrorisonlygeneratedasaresultofincorrectinformationbeinginsertedbytheMSC orBSS. NOTE3: ThisparametercanbeusedbytheVLRtodecidewhether(e.g.)AuthenticationorIMEIcheckingis needed. NOTE4 Asthemobilestationclassmark(1or2)isreceivedbytheMSCattheestablishmentofeveryRR connection,thisinformationneednotbestoredintheVLR,butitisstoredintheMSCaslongastheRR connectionexists. NOTE5 ThemobileidentityisinsertedbytheMSCifitisreceivedinaMAP_FORWARD_NEW_TMSIservice. IfaTMSIisincluded,theMSshouldrespondwithaTMSIREALLOCATIONCOMPLETEmessage. NOTE6 TheHLRshallalsosendthiserrorifthereisanerrorinthetypeofsubscription(i.e.VLRrequestsservice foraGPRSonlysubscriber) ETSI (GSM09.10version7.1.0Release1998) 10 ETSITS100605V7.1.0(1999-12) 3.3 Detach IMSI --------------------------------------------------------------- ┼| 04.08 09.02 |┼Notes -------- ------------------------------------------------ ----- Forward | IMSI DETACH MAP_DETACH_IMSI | message | INDICATION request | | | | Mobile identity IMSI or TMSI | | | | Mobile Station | |┼ classmark 1 - |┼ -------- ------------------------------------------------ ----- Positive| | result |┼ |┼ 1 -------- ------------------------------------------------ ----- Negative| | result |┴ |┴ -------- ------------------------------------------------ ----- NOTE1: Theforwardmessageisnotacknowledged. DependingonthestateoftheMS,theIMSIDETACHINDICATIONmaybecarriedineitheraDTAPmessageora BSSMAPCOMPLETELAYER3INFORMATIONmessage. ETSI