SIST EN 301 344 V7.4.1:2005
(Main)Digital cellular telecommunications system (Phase 2+) (GSM); General Packet Radio Service (GPRS); Service description; Stage 2 (GSM 03.60 version 7.4.1 Release 1998)
- Abstract
CR TSG#7
- Status
- Published
- Publication Date
- 31-Jan-2005
- Technical Committee
- RES - Radio equipment and systems
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 01-Feb-2005
- Due Date
- 01-Feb-2005
- Completion Date
- 01-Feb-2005
- Mandate
- BC-T-330
SIST EN 301 344 V7.4.1:2005 is the Slovenian adoption of ETSI EN 301 344 V7.4.1 for GPRS in GSM Phase 2+. It defines the stage-2 service description for General Packet Radio Service (GPRS): the network architecture, service states, procedures, and interworking needed to support packet data in a GSM PLMN.
What does SIST EN 301 344 V7.4.1:2005 specify?
SIST EN 301 344 V7.4.1:2005 specifies the stage-2 service description for GPRS on GSM. In practice, that means it describes how the GPRS service works in the network, which nodes take part, how subscribers attach and move, and how packet data is routed to external networks.
The standard covers the first phase of GPRS and does not cover the lower layers of the GPRS GSM radio interface. It is organized into clauses on references, definitions, concepts, architecture, mobility management, radio resource handling, packet routeing and transfer, screening, transmission, information storage, identities, operational aspects, and interactions with other GSM services.
| Annex | What it covers |
|---|---|
| Annex A | APN and GGSN selection rules |
| Annex B | Internet-Hosted Octet Stream Service (IHOSS) |
| Annex C | Data transmission routeing examples |
| Annex D | Figures |
| Annex E | Tables |
| Annex F | Document history |
What are the key requirements of SIST EN 301 344 V7.4.1:2005?
SIST EN 301 344 V7.4.1:2005 sets out the service functions and procedures that a GPRS network must support. The main practical points are attachment, mobility handling, packet session control, routeing, security, and interworking.
Network architecture and access
Clause 5 defines the GPRS architecture around the Mobile Station (MS), Base Station System (BSS), Serving GPRS Support Node (SGSN), Gateway GPRS Support Node (GGSN), HLR, and optional MSC/VLR and SMS nodes. It also names the Um, Gb, Gn, Gp, Gi, Gr, Gs, Gd, Gc, Gf, and Ga reference points. This matters because implementers need to place functions at the right node and support the right interfaces.
Mobility and state handling
Clause 6 defines three Mobility Management states for normal GPRS operation: IDLE, STANDBY, and READY. It also defines the READY timer, periodic Routeing Area update timer, and Mobile Reachable timer. In practice, these timers control when the network still considers the MS reachable, when paging is used, and when contexts are released or kept.
Attach, detach, and subscriber context
Clause 6 describes GPRS attach, combined GPRS/IMSI attach, GPRS detach, combined detach, network-initiated detach, HLR-initiated detach, and purge handling. The procedure uses identities such as P-TMSI, IMSI, and Routeing Area Identity, and it can update the VLR when the optional Gs interface is present. This is the core subscriber-state handling that operators and core-network equipment must implement.
PDP contexts and packet transfer
Clause 9 defines Packet Data Protocol (PDP) states and the activation, modification, and deactivation of PDP contexts, including anonymous access PDP context procedures. Clause 9 also describes static and dynamic PDP addresses and the routeing role of the GGSN. In practice, this is how a packet session is established, updated, and torn down for data transfer.
Transmission and protocol layers
Clause 12 describes the transmission plane and signalling plane, including GTP, IP, TCP, UDP, LLC, SNDCP, BSSGP, NS, and RLC/MAC. It also covers encapsulation, tunnelling, compression, and QoS handling. This matters because GPRS carries user data transparently across the PLMN while preserving control, confidentiality, and service quality.
Charging and other GSM services
Clause 15 covers charging and QoS profile fields such as precedence, delay, reliability, and throughput classes. Clause 16 covers interactions with SMS, circuit-switched services, and supplementary services. That makes the document useful for billing design and for networks that must coordinate packet and circuit-switched service behavior.
What terms does SIST EN 301 344 V7.4.1:2005 define?
- GPRS - General Packet Radio Service, the packet-mode service described by the standard.
- SGSN - Serving GPRS Support Node, the node that serves the MS and manages mobility and security.
- GGSN - Gateway GPRS Support Node, the node that connects the GPRS PLMN to external packet networks.
- PDP context - The session context used to route packet data between the MS and the external packet data network.
- P-TMSI - Packet TMSI, a temporary identity used for GPRS subscriber identification.
- Routeing Area (RA) - A mobility area used for GPRS updates and paging control.
- LLC - Logical Link Control, the layer that provides a reliable, ciphered logical link over the radio path.
Who uses SIST EN 301 344 V7.4.1:2005?
SIST EN 301 344 V7.4.1:2005 is used by GSM and GPRS network operators, core-network engineers, and mobile system designers. It is also relevant to BSS, SGSN, and GGSN implementers, SMS interworking designers, and teams responsible for charging, mobility management, and network integration.
In practice, these users apply it when designing GPRS attach and detach behavior, configuring routeing areas and paging, mapping subscriber data, and connecting the PLMN to IP, X.25, and other packet data networks.
Which standards are used with SIST EN 301 344 V7.4.1:2005?
The standard refers to several companion GSM and external standards that provide supporting procedures and lower-layer behavior:
- GSM02.60 - stage-1 GPRS service description and overall service requirements.
- GSM03.64 - overall description of the GPRS radio interface.
- GSM04.60 - RLC/MAC procedures on the MS-BSS radio interface.
- GSM04.64 - LLC layer specification between MS and SGSN.
- GSM04.65 - SNDCP specification.
- GSM08.18 - BSSGP between BSS and SGSN.
- GSM09.60 - GTP across the Gn and Gp interfaces.
- GSM09.61 - interworking between the PLMN and packet data networks.
- GSM12.15 - GPRS charging.
- CCITT I.130 and Q.65 - service characterization methodology.
What does the SIST EN 301 344 V7.4.1:2005 document contain?
The document contains architecture diagrams, state models, signalling-plane diagrams, and procedure flows for attach, detach, paging, routeing-area update, PDP context management, and interworking with MSC/VLR and HLR functions. It also includes examples of data routeing in Annex C, plus supporting annexes for APN/GGSN selection and Internet-Hosted Octet Stream Service.
Clause 5 shows the logical GPRS architecture and the main protocol stack. Clause 6 shows the mobility-management behavior in both normal and anonymous access cases. Later clauses cover packet routeing, identity handling, charging, and interactions with SMS and circuit-switched services.
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Frequently Asked Questions
SIST EN 301 344 V7.4.1:2005 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Digital cellular telecommunications system (Phase 2+) (GSM); General Packet Radio Service (GPRS); Service description; Stage 2 (GSM 03.60 version 7.4.1 Release 1998)". This standard covers: CR TSG#7
CR TSG#7
SIST EN 301 344 V7.4.1:2005 is classified under the following ICS (International Classification for Standards) categories: 33.070.01 - Mobile services in general. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 301 344 V7.4.1:2005 is associated with the following European legislation: Standardization Mandates: BC-T-330. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
SIST EN 301 344 V7.4.1:2005 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Digital cellular telecommunications system (Phase 2+) (GSM); General Packet Radio Service (GPRS); Service description; Stage 2 (GSM 03.60 version 7.4.1 Release 1998)33.070.01Mobilni servisi na splošnoMobile services in generalICS:Ta slovenski standard je istoveten z:EN 301 344 Version 7.4.1SIST EN 301 344 V7.4.1:2005en01-februar-2005SIST EN 301 344 V7.4.1:2005SLOVENSKI
STANDARD
ETSIEN301344V7.4.1(2000-09)EuropeanStandard(Telecommunicationsseries)Digitalcellulartelecommunicationssystem(Phase2+);GeneralPacketRadioService(GPRS);Servicedescription;Stage2(GSM03.60version7.4.1Release1998)GLOBALSYSTEMFORMOBILECOMMUNICATIONSRSIST EN 301 344 V7.4.1:2005
ETSIETSIEN301344V7.4.1(2000-09)2(GSM03.60version7.4.1Release1998)ReferenceREN/TSGS-020360Q7R2KeywordsDigitalcellulartelecommunicationssystem,GlobalSystemforMobilecommunications(GSM),GPRSETSI650RoutedesLuciolesF-06921SophiaAntipolisCedex-FRANCETel.:+33492944200Fax:+33493654716SiretN°34862356200017-NAF742CAssociationàbutnonlucratifenregistréeàlaSous-PréfecturedeGrasse(06)N°7803/88ImportantnoticeIndividualcopiesofthepresentdocumentcanbedownloadedfrom:http://www.etsi.orgThepresentdocumentmaybemadeavailableinmorethanoneelectronicversionorinprint.Inanycaseofexistingorperceiveddifferenceincontentsbetweensuchversions,thereferenceversionisthePortableDocumentFormat(PDF).Incaseofdispute,thereferenceshallbetheprintingonETSIprintersofthePDFversionkeptonaspecificnetworkdrivewithinETSISecretariat.Usersofthepresentdocumentshouldbeawarethatthedocumentmaybesubjecttorevisionorchangeofstatus.InformationonthecurrentstatusofthisandotherETSIdocumentsisavailableathttp://www.etsi.org/tb/status/Ifyoufinderrorsinthepresentdocument,sendyourcommentto:editor@etsi.frCopyrightNotificationNopartmaybereproducedexceptasauthorizedbywrittenpermission.Thecopyrightandtheforegoingrestrictionextendtoreproductioninallmedia.©EuropeanTelecommunicationsStandardsInstitute2000.Allrightsreserved.SIST EN 301 344 V7.4.1:2005
ETSIETSIEN301344V7.4.1(2000-09)3(GSM03.60version7.4.1Release1998)ContentsIntellectualPropertyRights.8Foreword.81Scope.92References.93Definitions,abbreviationsandsymbols.113.1Definitions.113.2Abbreviations.113.3Symbols.134MainConcepts.135GeneralGPRSArchitectureandTransmissionMechanism.145.1GPRSAccessInterfacesandReferencePoints.145.2NetworkInterworking.155.2.1PSPDNInterworking.155.2.2Internet(IP)Interworking.155.3High-LevelFunctionsRequiredforGPRS.155.3.1NetworkAccessControlFunctions.155.3.1.1RegistrationFunction.165.3.1.2AuthenticationandAuthorisationFunction.165.3.1.3AdmissionControlFunction.165.3.1.4MessageScreeningFunction.165.3.1.5PacketTerminalAdaptationFunction.165.3.1.6ChargingDataCollectionFunction.165.3.2PacketRouteingandTransferFunctions.165.3.2.1RelayFunction.165.3.2.2RouteingFunction.175.3.2.3AddressTranslationandMappingFunction.175.3.2.4EncapsulationFunction.175.3.2.5TunnellingFunction.175.3.2.6CompressionFunction.175.3.2.7CipheringFunction.175.3.2.8DomainNameServerFunction.175.3.3MobilityManagementFunctions.175.3.4LogicalLinkManagementFunctions.175.3.4.1LogicalLinkEstablishmentFunction.185.3.4.2LogicalLinkMaintenanceFunctions.185.3.4.3LogicalLinkReleaseFunction.185.3.5RadioResourceManagementFunctions.185.3.5.1UmManagementFunction.185.3.5.2CellSelectionFunction.185.3.5.3Um-tranxFunction.185.3.5.4PathManagementFunction.185.3.6NetworkManagementFunctions.185.4LogicalArchitecture.195.4.1GPRSSupportNodes.195.4.2GPRSBackboneNetworks.205.4.3HLR.205.4.4SMS-GMSCandSMS-IWMSC.205.4.5GPRSMobileStations.215.4.6ChargingGatewayFunctionality.215.5AssignmentofFunctionstoGeneralLogicalArchitecture.215.6TransmissionandSignallingPlanes.225.6.1TransmissionPlane.225.6.2SignallingPlane.23SIST EN 301 344 V7.4.1:2005
ETSIETSIEN301344V7.4.1(2000-09)4(GSM03.60version7.4.1Release1998)5.6.2.1MS-SGSN.235.6.2.2SGSN-HLR.235.6.2.3SGSN-MSC/VLR.245.6.2.4SGSN-EIR.245.6.2.5SGSN-SMS-GMSCorSMS-IWMSC.245.6.2.6GSN-GSN.255.6.2.7GGSN-HLR.255.6.2.7.1MAP-basedGGSN-HLRSignalling.255.6.2.7.2GTPandMAP-basedGGSN-HLRSignalling.266MobilityManagementFunctionality.266.1DefinitionofMobilityManagementStates.266.1.1IDLE(GPRS)State.266.1.2STANDBYState.266.1.3READYState.276.2IDLE/STANDBY/READYStateFunctionality.286.2.1StateTransitionsandFunctions.286.2.2READYTimerFunction.306.2.3PeriodicRAUpdateTimerFunction.306.2.4MobileReachableTimerFunction.306.3InteractionsBetweenSGSNandMSC/VLR.316.3.1AdministrationoftheSGSN-MSC/VLRAssociation.316.3.2CombinedRA/LAUpdating.326.3.3CSPaging.326.3.3.1PagingCo-ordination.336.3.4Non-GPRSAlert.346.3.5MSInformationProcedure.346.3.6MMInformationProcedure.356.4MMProcedures.356.5AttachFunction.366.6DetachFunction.396.6.1MS-InitiatedDetachProcedure.406.6.2Network-InitiatedDetachProcedure.406.6.2.1SGSN-InitiatedDetachProcedure.406.6.2.2HLR-InitiatedDetachProcedure.416.7PurgeFunction.416.8SecurityFunction.426.8.1AuthenticationofSubscriber.426.8.2UserIdentityConfidentiality.436.8.2.1P-TMSISignature.436.8.2.2P-TMSIReallocationProcedure.436.8.3UserDataandGMM/SMSignallingConfidentiality.436.8.3.1ScopeofCiphering.436.8.3.2GPRSCipheringAlgorithm.446.8.4IdentityCheckProcedures.446.9LocationManagementFunction.446.9.1LocationManagementProcedures.456.9.1.1CellUpdateProcedure.456.9.1.2RouteingAreaUpdateProcedure.456.9.1.2.1IntraSGSNRouteingAreaUpdate.466.9.1.2.2InterSGSNRouteingAreaUpdate.476.9.1.3CombinedRA/LAUpdateProcedure.496.9.1.3.1CombinedIntraSGSNRA/LAUpdate.496.9.1.3.2CombinedInterSGSNRA/LAUpdate.516.9.1.4PeriodicRAandLAUpdates.546.10SubscriberManagementFunction.546.10.1SubscriberManagementProcedures.546.10.1.1InsertSubscriberDataProcedure.546.10.1.2DeleteSubscriberDataProcedure.556.11ClassmarkHandling.556.11.1RadioAccessClassmark.556.11.2SGSNClassmark.56SIST EN 301 344 V7.4.1:2005
ETSIETSIEN301344V7.4.1(2000-09)5(GSM03.60version7.4.1Release1998)7NetworkManagementFunctionality.568RadioResourceFunctionality.568.1CellSelectionandReselection.568.2DiscontinuousReception.568.3RadioResourceManagement.568.3.1LayerFunctions.578.3.2ModelofOperation.578.3.2.1DynamicAllocationofRadioResources.578.4PagingforGPRSDownlinkTransfer.579PacketRouteingandTransferFunctionality.589.1DefinitionofPacketDataProtocolStates.589.1.1INACTIVEState.589.1.2ACTIVEState.589.2PDPContextActivation,Modification,andDeactivationFunctions.599.2.1StaticandDynamicPDPAddresses.599.2.2ActivationProcedures.609.2.2.1PDPContextActivationProcedure.609.2.2.2Network-RequestedPDPContextActivationProcedure.619.2.2.2.1SuccessfulNetwork-RequestedPDPContextActivationProcedure.629.2.2.2.2UnsuccessfulNetwork-RequestedPDPContextActivationProcedure.639.2.2.3AnonymousAccessPDPContextActivationProcedure.649.2.3ModificationProcedures.659.2.3.1PDPContextModificationProcedure.669.2.4DeactivationProcedures.669.2.4.1PDPContextDeactivationInitiatedbyMSProcedure.669.2.4.2PDPContextDeactivationInitiatedbySGSNProcedure.679.2.4.3PDPContextDeactivationInitiatedbyGGSNProcedure.679.2.4.4AnonymousAccessPDPContextDeactivationInitiatedbyMSProcedure.689.2.4.5AnonymousAccessPDPContextDeactivationInitiatedbyGGSNProcedure.689.3PacketRouteingandTransferFunction.699.4RelayFunction.699.5PacketTerminalAdaptationFunction.699.6EncapsulationFunction.709.6.1EncapsulationBetweenSGSNandGGSN.709.6.2EncapsulationBetweenSGSNandMS.7010MessageScreeningFunctionality.7011CompatibilityIssues.7012Transmission.7112.1TransmissionModes.7112.1.1GTPTransmissionModes.7112.1.2LLCTransmissionModes.7112.1.3RLCTransmissionModes.7112.2LogicalLinkControlFunctionality.7112.2.1Addressing.7112.2.2Services.7112.2.3Functions.7212.3SubnetworkDependentConvergenceFunctionality.7212.3.1Services.7312.3.2Subfunctions.7312.4OctetStreamProtocolFunctionality.7412.4.1PADFunction.7512.4.1.1PacketAssembler.7512.4.1.1.1BufferFull.7512.4.1.1.2InactivityTimerExpiry.7512.4.1.1.3MaximumBufferDelayTimerExpiry.7512.4.1.1.4SpecialCharacter.7512.4.1.1.5ChangeinFlowControlState.7512.4.1.1.6ImmediateForwardingRequest.76SIST EN 301 344 V7.4.1:2005
ETSIETSIEN301344V7.4.1(2000-09)6(GSM03.60version7.4.1Release1998)12.4.1.2PacketDisassembler.7612.4.2QualityofService.7612.5Point-to-PointProtocolFunctionality.7612.5.1TransmissionPlaneforPDPTypePPP.7612.5.2Functions.7612.6GbInterface.7712.6.1PhysicalLayerProtocol.7712.6.2LinkLayerProtocols.7712.6.3BSSGPRSProtocol.7712.6.3.1Inter-dependencyoftheBSSGPandLLCFunctions.7812.6.3.2BSSGPAddressing.7812.6.3.3BVCIContextsinBSSandinSGSN.7812.6.3.4FlowControlBetweenSGSNandBSSovertheGbInterface.7912.7AbisInterface.7912.7.1RemotePacketControlUnit.8013InformationStorage.8013.1HLR.8113.2SGSN.8213.3GGSN.8313.4MS.8413.5MSC/VLR.8513.6RecoveryandRestorationProcedures.8513.6.1HLRFailure.8613.6.2SGSNFailure.8613.6.3GGSNFailure.8613.6.4VLRFailure.8614Identities.8714.1IMSI.8714.2PacketTMSI.8714.3NSAPIandTLLI.8714.4PDPAddress.8814.5TID.8814.6RouteingAreaIdentity.8814.7CellIdentity.8914.8GSNAddresses.8914.8.1GSNAddress.8914.8.2GSNNumber.8914.9AccessPointName.8915OperationalAspects.9015.1Charging.9015.1.1ChargingInformation.9015.1.2ReverseCharging.9015.2QualityofServiceProfile.9015.2.1PrecedenceClass.9115.2.2DelayClass.9115.2.3ReliabilityClass.9115.2.4ThroughputClasses.9215.2.4.1PeakThroughputClass.9215.2.4.2MeanThroughputClass.9316InteractionswithOtherGSMServices.9316.1Point-to-pointShortMessageService.9316.1.1Mobile-terminatedSMSTransfer.9416.1.1.1UnsuccessfulMobile-terminatedSMSTransfer.9416.1.2Mobile-originatedSMSTransfer.9616.2Circuit-switchedServices.9616.2.1SuspensionofGPRSServices.9616.2.2GPRSandDedicatedModePriorityHandling.9716.3SupplementaryServices.98SIST EN 301 344 V7.4.1:2005
ETSIETSIEN301344V7.4.1(2000-09)7(GSM03.60version7.4.1Release1998)AnnexA(normative):APNandGGSNSelection.99A.1Definitions.99A.2APNSelectionRules.99AnnexB(normative):Internet-HostedOctetStreamService.106B.1DirectionofConnectionSetup.106B.2Bearer.106B.3SetupData.106B.3.1ProtocolType–TCPorUDP.106B.3.2HostName.107B.3.3PortNumber.107B.3.4PADParameters.107B.4FlowControl.107B.5BreakSignal.107B.6ConnectionEstablishmentProcedure.107B.6.1FullyUser-SpecifiedEstablishment.108B.6.2DefaultInternetEndpointParametersEstablishment.108B.7ConnectionTermination.108B.7.1MS-initiatedTCPIHOSSConnectionTermination.108B.7.2MS-initiatedUDPIHOSSConnectionTermination.108B.7.3InternetHostInitiatedTCPIHOSSConnectionTermination.109B.8QualityofService.109B.9Security.109B.9.1AuthenticationoftheGPRSUser.109B.9.2MaliciousReconfigurationoftheGPRSDevice.109B.10Maintenance.109AnnexC(informative):DataTransmissionRouteingExamples.110C.1DataRouteingforanMSinitsHomePLMNtoandfromanExternalPDN.110C.2DataRouteingforaRoamingMStoandfromanExternalPDN.111C.3MS-to-MSDataRouteingviatheSameGGSN.111C.4MS-to-MSDataRouteingviaDifferentGGSNs.112AnnexD(informative):Figures.113AnnexE(informative):Tables.115AnnexF(informative):Documenthistory.116History.117SIST EN 301 344 V7.4.1:2005
ETSIETSIEN301344V7.4.1(2000-09)8(GSM03.60version7.4.1Release1998)IntellectualPropertyRightsIPRsessentialorpotentiallyessentialtothepresentdocumentmayhavebeendeclaredtoETSI.TheinformationpertainingtotheseessentialIPRs,ifany,ispubliclyavailableforETSImembersandnon-members,andcanbefoundinETSISR000314:"IntellectualPropertyRights(IPRs);Essential,orpotentiallyEssential,IPRsnotifiedtoETSIinrespectofETSIstandards",whichisavailablefromtheETSISecretariat.LatestupdatesareavailableontheETSIWebserver(http://www.etsi.org/ipr).PursuanttotheETSIIPRPolicy,noinvestigation,includingIPRsearches,hasbeencarriedoutbyETSI.NoguaranteecanbegivenastotheexistenceofotherIPRsnotreferencedinETSISR000314(ortheupdatesontheETSIWebserver)whichare,ormaybe,ormaybecome,essentialtothepresentdocument.ForewordThisEuropeanStandard(Telecommunicationsseries)hasbeenproducedbyETSITechnicalCommitteeSpecialMobileGroup(SMG).Thepresentdocumentdefinesthestage-2servicedescriptionforaGeneralPacketRadioService(GPRS)withinthedigitalcellulartelecommunicationssystem(Phase2+).ThecontentsofthepresentdocumentaresubjecttocontinuingworkwithinSMGandmaychangefollowingformalSMGapproval.ShouldSMGmodifythecontentsofthepresentdocumentitwillthenbere-submittedforOAPwithanidentifyingchangeofreleasedateandanincreaseinversionnumberasfollows:Version7.x.ywhere:7indicatesGSMRelease1998ofPhase2+xtheseconddigitisincrementedforchangesofsubstance,i.e.technicalenhancements,corrections,updates,etc.ythethirddigitisincrementedwheneditorialonlychangeshavebeenincorporatedinthespecification.NationaltranspositiondatesDateofadoptionofthisEN:18August2000DateoflatestannouncementofthisEN(doa):30November2000DateoflatestpublicationofnewNationalStandardorendorsementofthisEN(dop/e):31May2001DateofwithdrawalofanyconflictingNationalStandard(dow):31May2001SIST EN 301 344 V7.4.1:2005
ETSIETSIEN301344V7.4.1(2000-09)9(GSM03.60version7.4.1Release1998)1ScopeThepresentdocumentdefinesthestage-2servicedescriptionforaGeneralPacketRadioService(GPRS)onGSM.CCITTI.130[29]describesathree-stagemethodforcharacterisationoftelecommunicationservices,andCCITTQ.65[31]definesstage2ofthemethod.Thisversionofthestage-2servicedescriptioncoversthefirstphaseofGPRS,anddoesnotmeetalltheservicesandfunctionalitydescribedinGSM02.60[3].ThepresentdocumentdoesnotcoverthelowerlayersoftheGPRSGSMradiointerface.GSM03.64[9]containsanoveralldescriptionoftheradiointerface.2ReferencesThefollowingdocumentscontainprovisionswhich,throughreferenceinthistext,constituteprovisionsofthepresentdocument.• Referencesareeitherspecific(identifiedbydateofpublication,editionnumber,versionnumber,etc.)ornon-specific.• Foraspecificreference,subsequentrevisionsdonotapply.• Foranon-specificreference,thelatestversionapplies.• Anon-specificreferencetoanETSshallalsobetakentorefertolaterversionspublishedasanENwiththesamenumber.• ForthisRelease1998document,referencestoGSMdocumentsareforRelease1998versions(version7.x.y).[1]GSM01.04:"Digitalcellulartelecommunicationssystem(Phase2+);Abbreviationsandacronyms".[2]GSM01.61:"Digitalcellulartelecommunicationssystem(Phase2+);GPRScipheringalgorithmrequirements".[3]GSM02.60:"Digitalcellulartelecommunicationssystem(Phase2+);GeneralPacketRadioService(GPRS);Servicedescription;Stage1".[4]GSM03.03:"Digitalcellulartelecommunicationssystem(Phase2+);Numbering,addressingandidentification".[5]GSM03.07:"D
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