SIST EN 301 113 V6.2.1:2003
(Main)Digital cellular telecommunications system (Phase 2+) (GSM); General Packet Radio Service (GPRS); Service description; Stage 1 (GSM 02.60 version 6.2.1 Release 1997)
Digital cellular telecommunications system (Phase 2+) (GSM); General Packet Radio Service (GPRS); Service description; Stage 1 (GSM 02.60 version 6.2.1 Release 1997)
SUBJECT Allowing re-negotiation of the QoS parameters for throughput during a session improves the flexibility of network operation and increases the quality of service perceived by the user. Requirement for the MS to inform the network of its GPRS class is not appropriate for the stage 1 and should be left for the stage 2 to determine. The three MS classes A, B, C remain unchanged. Clarification of the GPRS Attach characteristics. A GPRS-Attach shall be succesfully performed only if the subscriber has a valid GPRS subscription.
Digitalni celični telekomunikacijski sistem (faza 2+) – Splošna radijska storitev s paketiranimi podatki (GPRS) – Opis storitve – Stopnja 1 (GSM 02.60, različica 6.2.1, izdaja 1997)
General Information
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 1 (GSM 02.60 version 6.2.1 Release 1997)33.070.50Globalni sistem za mobilno telekomunikacijo (GSM)Global System for Mobile Communication (GSM)ICS:Ta slovenski standard je istoveten z:EN 301 113 Version 6.2.1SIST EN 301 113 V6.2.1:2003en01-december-2003SIST EN 301 113 V6.2.1:2003SLOVENSKI
STANDARD
EN 301 113 6.2.1 (1999-08)European Standard (Telecommunications series)Digital cellular telecommunications system (Phase 2+);General Packet Radio Service (GPRS);Service description;Stage 1(GSM 02.60 version 6.2.1 Release 1997)GLOBAL SYSTEM
FOR MOBILE COMMUNICATIONSRSIST EN 301 113 V6.2.1:2003
ETSIEN 301 113 6.2.1 (1999-08)2(GSM 02.60 version 6.2.1 Release 1997)ReferenceREN/SMG-010260Q6R1 (ab0030oo.PDF)KeywordsDigital cellular telecommunications system,Global System for Mobile communications (GSM)ETSIPostal addressF-06921 Sophia Antipolis Cedex - FRANCEOffice address650 Route des Lucioles - Sophia AntipolisValbonne - FRANCETel.: +33 4 92 94 42 00
Fax: +33 4 93 65 47 16Siret N° 348 623 562 00017 - NAF 742 CAssociation à but non lucratif enregistrée à laSous-Préfecture de Grasse (06) N° 7803/88Internetsecretariat@etsi.frIndividual copies of this ETSI deliverablecan be downloaded fromhttp://www.etsi.orgIf you find errors in the present document, send yourcomment to: editor@etsi.frCopyright NotificationNo part may be reproduced except as authorized by written permission.The copyright and the foregoing restriction extend to reproduction in all media.© European Telecommunications Standards Institute 1999.All rights reserved.SIST EN 301 113 V6.2.1:2003
ETSIEN 301 113 6.2.1 (1999-08)3(GSM 02.60 version 6.2.1 Release 1997)ContentsIntellectual Property Rights.5Foreword.51Scope.62References.73Definitions and abbreviations.83.1Definitions.83.2Abbreviations.134Applicability.135Description.145.1GPRS reference model.145.1.1Bearer services.155.1.2Teleservices.155.1.3GPRS Access Points.165.2GPRS service description.165.2.1Point-To-Point Connectionless Network Service (PTP-CLNS).175.2.2Point-To-Point Connection Orientated Network Service (PTP-CONS).175.3Transfer Characteristics.175.4Service characteristics.185.4.1Subscriber profile.185.4.2Quality of Service (QoS).185.4.2.1QoS parameter definitions.195.4.2.1.1Service precedence (priority).195.4.2.1.2Reliability.195.4.2.1.3Delay.195.4.2.1.4Throughput.205.4.2.2QoS profile.205.4.2.3Monitor.205.4.3Security services.215.4.4Packet size.215.4.5Capabilities of GPRS MS Classes.215.4.6Subscriber roaming.225.4.7Construction of GPRS subscriber numbers.225.4.8Battery life extension.225.4.9Format Of Message User Data.235.4.10Charging aspects.235.4.10.1PTP charging information.235.4.10.2Reverse Charging.235.4.11Message Screening.236Normal procedures with successful outcome.236.1Provision.236.2Withdrawal.246.3GPRS-Attach, GPRS-Detach.246.4Registration.246.5Erasure.256.6Interrogation.256.7Activation.266.8De-activation.266.9Invocation and operation.266.10PIN and Password Management.267Exceptional procedures.267.1Provision.267.2Withdrawal.27SIST EN 301 113 V6.2.1:2003
ETSIEN 301 113 6.2.1 (1999-08)4(GSM 02.60 version 6.2.1 Release 1997)7.3Registration.277.4Erasure.277.5Interrogation.277.6Activation.277.7De-activation.277.8Invocation and operation.277.9PIN and Password management.278Addressing.2810Service interworking.2811Network interworking.2811.1Interworking with other data networks and other PLMNs.2811.1.1QoS when Interworking.2911.2GPRS Numbering Plan.2911.3Addressing and routeing requirements.2911.4Interworking for subscriber roaming.29Annex A (informative):Change Request History.30History.31SIST EN 301 113 V6.2.1:2003
ETSIEN 301 113 6.2.1 (1999-08)5(GSM 02.60 version 6.2.1 Release 1997)Intellectual Property RightsIPRs essential or potentially essential to the present document may have been declared to ETSI. The informationpertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be foundin SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respectof ETSI standards", which is available free of charge from the ETSI Secretariat. Latest updates are available on theETSI Web server (http://www.etsi.org/ipr).Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guaranteecan be given as to the existence of other IPRs not referenced in SR 000 314 (or the updates on the ETSI Web server)which are, or may be, or may become, essential to the present document.ForewordThis European Standard (Telecommunications series) has been produced by the Special Mobile Group (SMG).In analogy with CCITT Recommendations I.130, the first stage of the following three level structure is used to describethe telecommunications services as provided by European public telecommunications operators:Stage 1is an overall service description, from the service subscriber's and user's standpoint;Stage 2identifies the functional capabilities and information flows needed to support the service describedin stage 1; andStage 3defines the signalling system protocols and switching functions needed to implement the servicedescribed in stage 1.The present document details the stage 1 aspects (overall service description) for the General Packet Radio Service(GPRS) on Global System for Mobile communications (GSM) networks.The contents of the present document are subject to continuing work within SMG and may change following formalSMG approval. Should SMG modify the contents of the present document it will then be re-submitted for OAP with anidentifying change of release date and an increase in version number as follows:Version 6.x.ywhere:6indicates GSM Release 1997 of Phase 2+xthe second digit is incremented for all other types of changes, i.e. technical enhancements, corrections,updates, etc.ythe third digit is incremented when editorial only changes have been incorporated in the specification.Proposed national transposition datesDate of adoption of this EN:6 August 1999Date of latest announcement of this EN (doa):30 November 1999Date of latest publication of new National Standardor endorsement of this EN (dop/e):31 May 2000Date of withdrawal of any conflicting National Standard (dow):31 May 2000SIST EN 301 113 V6.2.1:2003
ETSIEN 301 113 6.2.1 (1999-08)6(GSM 02.60 version 6.2.1 Release 1997)1ScopeThe present document defines the stage one description of the General Packet Radio Service (GPRS) on Global Systemfor Mobile communications (GSM) networks. Stage one is an overall service description, primarily from the servicesubscriber's and user's points of view, but does not deal with the details of the human interface itself. The presentdocument includes information applicable to network operators, service providers and terminal, switch and data basemanufacturers.The present document contains the core requirements for the GPRS on GSM, which are sufficient to provide a completeservice.The present document also documents some additional requirements which may be implemented (but do not have to beimplemented).In addition, additional functionality's not documented in the present document may be implemented. The requirementsof which are considered outside the scope of the present document and consequently outside the scope of thecorresponding stage 2 and stage 3 specifications. This additional functionality may be on a network-wide basis, orparticular to one or a group of users. Such additional functionality shall not compromise conformance to the corerequirements of the service.The interface between the Mobile Station (MS) and any external applications are outside the scope of the presentdocument.Charging principles are outside the scope of the present document, unless specific service requirements are stated. Theserequirements deal with the allocation of certain call charges to particular users.A later phase of GPRS may include interworking with circuit switched networks (e.g. PSTN, ISDN) and may emulatecertain circuit switched services. These aspects are outside the scope of this version of the present document.NOTE:The present document includes requirements for GPRS phase 1 (Rel ’97). The first phase of standardsspecified will provide a basic functional GPRS service.Phase 1 GPRS supports:-PTP-User Interworking for PTP TCP/IP.-X.28 from MS to GGSN; X.25 from GGSN to external PDNs.Internal Network Interfaces:-Gn - GSN backbone network-Gb - BSS to SGSN-Gr - SGSN to HLR-Gp - PLMN to PLMN (ie roaming)-Gs - SGSN to MSC-External Reference point Gi for connecting via TCP/IP and X.25-Identities-Security Issues - for PTP and roaming-Charging Issues-Operator Call Barring and Termination, Operator Call Screening-PTM radio interface in preparation for phase 2.-Anonymous accessSIST EN 301 113 V6.2.1:2003
ETSIEN 301 113 6.2.1 (1999-08)7(GSM 02.60 version 6.2.1 Release 1997)-Support of SMS-MO and -MT via GPRS (note: SMS-CB not supported in phase 1).2ReferencesThe following documents contain provisions which, through reference in this text, constitute provisions of the presentdocument.· References are either specific (identified by date of publication, edition number, version number, etc.) ornon-specific.· For a specific reference, subsequent revisions do not apply.· For a non-specific reference, the latest version applies.· A non-specific reference to an ETS shall also be taken to refer to later versions published as an EN with the samenumber.[1]GSM 02.01: "Digital cellular telecommunications system (Phase 2+); Principles oftelecommunication services supported by a GSM Public Land Mobile Network (PLMN)".[2]GSM 04.02: "Digital cellular telecommunications system (Phase 2+); GSM Public Land MobileNetwork (PLMN) access reference configuration".[3]ITU-T Recommendation X.25: "Interface between data terminal equipment (DTE) and data circuit-terminating equipment (DCE) for terminals operating in the packet mode and connected to publicdata networks by dedicated circuit".[4]ISO 8208: "Information processing systems - data communications - X.25 packet level protocol fordata terminal equipment".[5]ISO 8348: "Information processing systems - data communications - network service definition".[6]ISO 8473: "Information technology - protocol for providing the connectionless mode networkservice".[7]ISO 8878: "Information processing systems - data communications - use of X.25 to provide theOSI connection-mode network service".[8]Internet STD 5:RFC 791: Internet protocol, RFC 950: "Internet standard subnetting procedure",RFC 919: "Broadcasting internet datagrams", RFC 922: "Broadcasting internet datagrams in thepresence of subnets", RFC 792: "Internet control message protocol", RFC 1112: "Host extensionsfor IP multicasting" RFC 1122:" Requirements for Internet hosts - communication layers". RFC1920:" Internet official protocol standards", RFC 1458: "Requirements for multicast protocols",RFC 1301: "Multicast transport protocol".[9]ITU-T Recommendation X.3: "Packet Assembly/Disassembly facility (PAD) in a public datanetwork".[10]ITU-T Recommendation X.28: "DTE/DCE interface for a start-stop mode Data TerminalEquipment accessing the Packet Assembly/Disassembly facility (PAD) in a public data networksituated in the same country".X.28 Add. 1
(7/94)
Addendum 1 to Recommendation X.28 to enable MAP support in accordancewith Recommendation X.8.[11]ITU-T Recommendation X.29: "Procedures for the exchange of control information and user databetween a Packet Assembly/Disassembly (PAD) facility and a packet mode DTE or another PAD".[12]ITU-T Recommendation X.75: "Packet-switched signalling system between public networksproviding data transmission services".[13]Bellcore GR-000301 Issue 2, 1997: “Public Packet Switched Network Generic Requirements(PPSNGR)”.SIST EN 301 113 V6.2.1:2003
ETSIEN 301 113 6.2.1 (1999-08)8(GSM 02.60 version 6.2.1 Release 1997)[14]ITU-T Recommendation X.121: "International numbering plan for public data networks".[15]ITU-T Recommendation X.136: "Accuracy and dependability performance values for public datanetworks when providing international packet-switched services".[16]ITU-T Recommendation X.137: "Availability performance values for public data networks whenproviding international packet-switched services".[17]GSM 02.68: "Digital cellular telecommunications system (Phase 2+); Voice Group Call Service(VGCS) - Stage 1".[18]GSM 02.06: "Digital cellular telecommunications system (Phase 2+); Types of Mobile Stations(MS)".[19]GSM 02.04: "Digital cellular telecommunications system (Phase 2+); General on supplementaryservices".[20]GSM 02.30: "Digital cellular telecommunications system (Phase 2+); Man-Machine Interface(MMI) of the Mobile Station (MS)".[21]GSM 02.17: "Digital cellular telecommunications system (Phase 2+); Subscriber Identity Modules(SIM) Functional characteristics".[22]GSM 03.68: "Digital cellular telecommunications system (Phase 2+); Voice Group Call Service(VGCS) - Stage 2".[23]GSM 04.68: "Digital cellular telecommunications system (Phase 2+); Group Call Control (GCC)protocol".3Definitions and abbreviations3.1DefinitionsFor the purposes of the present document the following terms and definitions apply.Aaccess delay: The value of elapsed time between an access request and a successful access (source: ITU-T X.140).access protocol: a defined set of procedures that is adopted at an interface at a specified reference point between a userand a network to enable the user to employ the services and/or facilities of that network (source: ITU-T I.112).accuracy: A performance criterion that describes the degree of correctness with which a function is performed. (Thefunction may or may not be performed with the desired speed.) (source: ITU-T I.350).Bbasic service: The telecommunication services excluding the supplementary services (source: GSM 01.04).bearer service: A type of telecommunication service that provides the capability for the transmission of signals betweenuser-network interfaces (source: GSM 01.04, ITU-T I.112).best effort service: A service model which provides minimal performance guarantees, allowing an unspecified variancein the measured performance criteria.Ccalling user: Entity which originates a call to the General Packet Radio Service (GPRS).connectionless service: A service which allows the transfer of information among service users without the need forend-to-end call establishment procedures (source: ITU-T I.113).SIST EN 301 113 V6.2.1:2003
ETSIEN 301 113 6.2.1 (1999-08)9(GSM 02.60 version 6.2.1 Release 1997)connectionless-mode transfer:"The terms 'message', 'datagram', ‘transaction mode' and 'connection-free' have been used in the literature todescribe variations on the same basic theme: the transmission of a unit of data in a single, self-containedoperation without establishing, maintaining, and releasing a connection.""(Connectionless-mode transmission) is the transmission of a single unit of data from a source service-access-point to one or more destination service-access-point(s) without establishing a connection. A connectionless-mode service allows an entity to initiate such a transmission by the performance of a single service access.In contrast to a connection, an instance of the use of a connectionless-mode service does not have a clearlydistinguishable lifetime. In addition, the connectionless-mode service, unless otherwise explicitly determined, hasthe following fundamental characteristics:a)no dynamic peer-to-peer agreement is involved in an instance of the service;b)all of the information required to deliver a unit of data (destination address, quality of service selection,options, etc.) is presented to the layer providing the connectionless-mode service, together with the user datato be transmitted, in a single service access. The layer providing the connectionless-mode service is notrequired to relate this access to any other service access.As a result of these fundamental characteristics it may also be true thatc)each unit of data transmitted is entirely self-contained and can be routed independently;d)copies of a unit of data can be transmitted to a number of destination addresses."NOTE:Connectionless-mode transfer normally implies that the service a) does not provide confirmed deliveryof SDUs, b) does not guarantee delivery of SDUs, c) does not guarantee maintenance of SDU sequencingand d) does not guarantee elimination of SDUs.connection-mode transfer:"A connection is an association established for the transfer of data between two or more peer-entities. Thisassociation is established between the peer-entities themselves and between each entity and the next lower layer.The ability to establish a connection and to transfer data over it is provided to the entities in a given layer by thenext lower layer as a connection-mode service. An instance of the use of a connection-mode service by peer-entities proceeds through three distinct phases of operation:a)connection establishment;b)data transfer; andc)connection release."NOTE:Connection-mode transfer normally implies that the service a) provides confirmed delivery of SDUs, b)provides ordered, in-sequence delivery of SDUs and c) will not duplicate SDUs.conversational service: An interactive service which provides for bi-directional communication by means of real-time(no store-and-forward) end-to-end information transfer from user to user (source: ITU-T I.113).Ddemand service: A type of telecommunication service in which the communication path is established almostimmediately, in response to a user request effected by means of user-network signalling (source: GSM 01.04, ITU-TI.112).dependability: A performance criterion that describes the degree of certainty (or surety) with which a function isperformed regardless of speed or accuracy, but within a given observational interval (source: ITU-T I.350).destination user: Entity to which calls to the General Packet Radio Service (GPRS) are directed.ESIST EN 301 113 V6.2.1:2003
ETSIEN 301 113 6.2.1 (1999-08)10(GSM 02.60 version 6.2.1 Release 1997)extra SDU delivery probability: The ratio of total (unrequested) extra service data units (SDUs) to total service dataunits received by a destination user in a specified sample (source: ITU-T X.140).NOTE:the term "user information unit" has been replaced by the term "service data unit".Ffunctional group: A set of functions that may be performed by a single equipment (source: ITU-T I.112).Gguaranteed service: A service model which provides highly reliable performance, with little or no variance in themeasured performance criteria.Iinteractive service: A service which provides the means for bi-directional exchange of information between users.Interactive services are divided into three classes of services: conversational services, messaging services and retrievalservices (source: ITU-T I.113).interface: The common boundary between two associated systems (source: GSM 01.04, ITU-T I.112).Mmean bit rate: A measure of throughput. The average (mean) bit rate available to the user for the given period of time(source: ITU-T I.210).mean transit delay: The average transit delay experienced by a (typically) large sample of PDUs within the sameservice category.messaging service: An interactive service which offers user-to-user communication between individual users viastorage units with store-and-forward, mailbox and/or message handling, (e.g., information editing, processing andconversion) functions (source: ITU-T I.113).mobile station: Equipment intended to access a set of GSM PLMN telecommunication services. Services may beaccessed while the equipment capable of surface movement within the GSM system area is in motion or during halts atunspecified points (source: GSM 01.04).mobile termination: The part of the mobile station which terminates the radio transmission to and from the network andadapts terminal equipment capabilities to those of the radio transmission (source GSM 01.04).Nnetwork connection: An association established by a network layer between two users for the transfer of data, whichprovides explicit identification of a set of network data transmissions and agreement concerning the services to beprovided by the set (source: ITU-T X.213 / ISO-IEC 8348).network operator: Entity which provides the network operating elements and resources for the execution of theGeneral Packet Radio Service (GPRS).network service data unit (NSDU): A unit of data passed between the user and the GPRS network across a NetworkService Access Point (NSAP).network termination: A functional group on the network side of a user-network interface (source: ITU-T I.112).Ppacket: An information unit identified by a label at layer 3 of the OSI reference model (source: ITU-T I.113). Anetwork protocol data unit (NPDU).packet data protocol (PDP): Any protocol which transmits data as discrete units known as packets, e.g., IP, or X.25.packet transfer mode: Also known as packet mode. A transfer mode in which the transmission and switching functionsare achieved by packet oriented techniques, so as to dynamically share network transmission and switching resourcesbetween a multiplicity of connections (source: ITU-T I.113).SIST EN 301 113 V6.2.1:2003
ETSIEN 301 113 6.2.1 (1999-08)11(GSM 02.60 version 6.2.1 Release 1997)peak bit rate: A measure of throughput. The maximum bit rate offered to the user for a given time period (to bedefined) for the transfer of a bursty signal (source: ITU-T I.210). (The maximum user information transfer rateachievable by a user for a single service data unit transfer.)PLMN Operator: Public Land Mobile Network operator. The entity which offers a GPRS.point-to-point (PTP): A value of the service attribute "communication configuration", which denotes that thecommunication involves only two network terminations.point-to-point (PTP) service: A service type in which data is sent from a single network termination to another networktermination.predictive service: A service model which provides reliable performance, but allowing a specified variance in themeasured performance criteria.protocol: A formal set of procedures that are adopted to ensure communication between two or more functions withinthe within the same layer of a hierarchy of functions (source: ITU-T I.112).protocol data unit (PDU): In the reference model for OSI, a unit of data specified in an (N)-protocol layer andconsisting of (N)-protocol control information and possibly (N)-user data (source: ITU-T X.200 / ISO-IEC 7498-1).Qquality of service: The collective effect of service performances which determine the degree of satisfaction of a user ofthe service (ITU-T E.800). The set of performance parameters that can be directly observed and measured at the point atwhich the service is accessed by the user. There are three criteria by which performance is measured: speed, accuracyand dependability (source: ITU-T I.350).Rreference configuration: A combination of functional groups and reference points that shows possible networkarrangements (source: GSM 01.04, ITU-T I.112).reference point: A conceptual point at the conjunction of two non-overlapping functional groups (source: GSM 01.04,ITU-T I.112).residual error rate: A parameter describing service accuracy. The frequency of lost SDUs, and of corrupted orduplicated network SDUs delivered at the user-network interface.retrieval service: An interactive service which provides the capability of accessing information stored in data basecentres. The information will be sent to the user on demand only. The information is retrieved on an individual basis,i.e., the time at which an information sequence is to start is under the control of the user (source ITU-T I.113).SSDU error probability: The ratio of total incorrect service data units (SDUs) to total successfully transferred servicedata units plus incorrect service data units in a specified sample (source: ITU-T X.140).NOTE:the source document term "user information unit" has been replaced by the term "service data unit".SDU loss probability: The ratio of total lost service data units (SDUs) to total transmitted service data units in aspecified sample (source: ITU-T X.140).NOTE:the source document term "user information unit" has been replaced by the term "service data unit".SDU misdelivery probability: The ratio of total misdelivered service data units (SDUs) to total service data unitstransferred between a specified source and destination user in a specified sample (source: ITU-T X.140).NOTE:the source document term "user information unit" has been replaced by the term "service data unit".SDU transfer delay: The value of elapsed time between the start of transfer and successful transfer of a specifiedservice data unit (SDU) (source: ITU-T X.140).NOTE:the source document term "user information unit" has been replaced by the term "service data unit".SIST EN 301 113 V6.2.1:2003
ETSIEN 301 113 6.2.1 (1999-08)12(GSM 02.60 version 6.2.1 Release 1997)SDU transfer rate: The total number of successfully transferred service data units (SDUs) in a transfer sample dividedby the input/output time for that sample. The input/output time is the larger of the input time or the output time for thesample (source: ITU-T X.140).NOTE:the source document term "user information unit" has been replaced by the term "service data unit".service access point (SAP): In the reference model for OSI, the points through which services are offered to an adjacenthigher layer (source: GSM 01.04, ITU-T X.200 / ISO-IEC 7498-1).service attribute: A specified characteristic of a telecommunication service (source: ITU-T I.112).NOTE:the value(s) assigned to one or more service attributes may be used to distinguish that telecommunicationsservice from others.service bit rate: The bit rate that is available to a user for the transfer of user information (source: ITU-T I.113).service category or service class: A service offered to the users described by a set of performance parameters and theirspecified values, limits or ranges. The set of parameters provides a comprehensive description of the service capability.service data unit (SDU): In the reference model for OSI, an amount of information whose identity is preserved whentransferred between peer (N+1)-layer entities and which is not interpreted by the supporting (N)-layer entities (source:ITU-T X.200 / ISO-IEC 7498-1).service delay: The time elapsed from the invocation of the service request, to the corresponding service requestindication at the Service Receiver, indicating the arrival of application data.service model: A general characterisation of services based upon a QoS paradigm, without specifying the actualperformance targets.service provider: Entity which offers the General Packet Radio Service (GPRS) for subscription. The network operatormay be the service provider.service receiver: The entity which receives the service request indication primitive, containing the SDU.service request: This is defined as being one invocation of the service through a service request primitive.service requester: The entity which requests the initiation of a GPRS operation, through a service request.service subscriber: Entity which subscribes to the General Packet Radio Service (GPRS) service.signalling: The exchange of information specifically concerned with the establishment and control of connections, andwith management, in a telecommunications network (source: ITU-T I.112).simultaneous use of services: The concurrent use of a GSM circuit-mode service (voice or data) and GSM packet-mode services (GPRS) by a single mobile station.speed: A performance criterion that describes the time interval required to perform a function or the rate at which thefunction is performed. (The function may or may not be performed with the desired accuracy.) (source: ITU-T I.350).Tteleaction service: A type of telecommunication service that uses short messages, requiring a low transmission rate,between the user and the network (source: ITU-T I.112).telecommunication service: That which is offered by a PLMN operator or service provider to its customers in order tosatisfy a specific telecommunication requirement. (source: GSM 01.04, ITU-T I.112). Telecommunication services aredivided into two broad families: bearer services and teleservices (source: ITU-T I.210).teleservice: A type of telecommunication service that provides the complete capability, including terminal equipmentfunctions, for communication between users according to protocols established by agreement between Administrations(source: GSM 01.04, ITU-T I.112).terminal equipment: Equipment that provides the functions necessary for the operation of the access protocols by theuser (source: GSM 01.04). A functional group on the user side of a user-network interface (source: ITU-T I.112).SIST EN 301 113 V6.2.1:2003
ETSIEN 301 113 6.2.1 (1999-08)13(GSM 02.60 version 6.2.1 Release 1997)throughput: A parameter describing service speed. The number of data bits successfully transferred in one directionbetween specified reference points per unit time (source: ITU-T I.113).transit delay: A parameter describing service speed. The time difference between the instant at which the first bit of aprotocol data unit (PDU) crosses one designated boundary (reference point), and the instant at which the last bit of thePDU crosses a second designated boundary (source: ITU-T I.113).Uuser access or user network access: The means by which a user is connected to a telecommunication network in orderto use the services and/or facilities of that network (source: GSM 01.04, ITU-T I.112).user-network interface: The interface between the terminal equipment and a network termination at which interface theaccess protocols apply (source: ITU-T I.112).user-user protocol: A protocol that is adopted between two or more users in order to ensure communication betweenthem (source: ITU-T I.112).Vvariable bit rate service: A type of telecommunication service characterised by a service bit rate specified bystatistically expressed parameters which allow the bit rate to vary within defined limits (source: ITU-T I.113).3.2AbbreviationsFor the purposes of the present document the following definitions apply:BOCBell Operating CompanyCLNPConnectionless network protocolCLNSConnectionless network serviceCONSConnection-oriented network serviceFFSFor further studyGPRSGeneral packet radio serviceGSNGPRS support nodeLATALocal Access and Transport AreaIPInternet protocolNSDUNetwork service data unitPDPPacket data protocolPDUProtocol data unitPLMNPublic land mobile networkPTPPoint to pointQoSQuality of serviceSAPService access pointSVCSwitched virtual circuitSDUService data unitTBDTo be definedTLLITemporary link level identityAdditional GSM related abbreviations can be found in GSM 01.04 (ETR 350) [1].4ApplicabilityThe GPRS is a set of new GSM bearer services that provides packet mode transmission within the PLMN andinterworks with external networks. It is not a requirement that the GPRS be an extension of or an emulation of one orany of these non-GSM services or networks.The GPRS shall not prevent the user's operation of other GSM services.SIST EN 301 113 V6.2.1:2003
ETSIEN 301 113 6.2.1 (1999-08)14(GSM 02.60 version 6.2.1 Release 1997)5DescriptionThe GPRS allows the service subscriber to send and receive data in an end-to-end packet transfer mode, withoututilizing network resources in circuit switched mode.GPRS enables the cost effective and efficient use of network resources for packet mode data applications e.g. forapplications that exhibit one or more of the following characteristics:-intermittent, non-periodic (i.e., bursty) data transmissions, where the time between successive transmissionsgreatly exceeds the average transfer delay;-frequent transmissions of small volumes of data, for example transactions consisting of less than 500 octets ofdata occurring at a rate of up to several transactions per minute;-infrequent transmission of larger volumes of data, for example transactions consisting of several kilobytes of dataoccurring at a rate of up to several transactions per hour.Within the GPRS, one bearer service type is defined. It is:-Point-To-Point (PTP);Based on standardized network protocols supported by the GPRS bearer services, a GPRS network administration mayoffer (or support) a set of additional services. This is outside the scope of this specification, however, a number ofpossible PTP interactive teleservices include:-retrieval services which provide the capability of accessing information stored in data base centres. Theinformation is sent to the user on demand only. An example of one such service in the Internet's World WideWeb (WWW);-messaging services which offer user-to-user communication between individual users via storage units with store-and-forward mailbox, and/or message handling (e.g., information editing, processing and conversion) functions;-conversational services which provide bi-directional communication by means of real-time (no store-and-forward) end-to-end information transfer from user to user. An example of such a service is the Internet's Telnetapplication;-tele-action services which are characterized by low data-volume (short) transactions, for example credit cardvalidations, lottery transactions, utility meter readings and electronic monitoring and surveillance systems.5.1GPRS reference modelThe GPRS can be described using the simplified reference model in figure 1.GPRS provides data transfer capabilities between a sending entity and one or more receiving entities. These entities maybe an MS or a Terminal Equipment, the latter being attached either to a GPRS network or to an external data network.The base station provides radio channel access for MSs to the GPRS network. User data may be transferred betweenfour types of MSs as described in GSM 02.01 [1] and GSM 04.02 [2]:SIST EN 301 113 V6.2.1:2003
ETSIEN 301 113 6.2.1 (1999-08)15(GSM 02.60 version 6.2.1 Release 1997)MSGPRS Data NetworkTEUmTEGiExternalData NetworkFigure 1: GPRS simplified reference model5.1.1Bearer servicesThe GPRS bearer services support the capability to transmit data between user-network access points (2, 4 and 7 infigure 2).5.1.2TeleservicesGPRS supports teleservices to provide complete communication service capabilities including the terminal equipmentfunctions necessary for communication between network customers using the user-user protocols supported by theGPRS service provider(s) (see also GSM 02.01 [1]).SIST EN 301 113 V6.2.1:2003
ETSIEN 301 113 6.2.1 (1999-08)16(GSM 02.60 version 6.2.1 Release 1997)MT0TE1TATE2TE2SRSRUmTEPDN67812345GiGPRSNetworkTE68MT2MT1MT1Figure 2: Telecommunication services access points5.1.3GPRS Access PointsConsidering the reference configuration in figure 1, users can access various telecommunication services at differentaccess points as shown in figure 2:-at access points 1, 3, 5, and 6 (user-to-terminal interfaces), teleservices are accessed - the teleservice conceptincludes the terminal capabilities;-at access point 2 (the R reference point), non-ISDN bearer services may be accessed, for example ITU-T X- andV-Series Recommendations;-at access point 4 (the S reference point), ISDN compatible bearer services may be accessed;at access point 7 external data network bearer services may be accessed;-access point 8 (the Gi reference point, which may not be identical for direct access and external data networkaccess) provides bearer service access for direct access for a data terminal and/or for external data networks, forexample X.25 networks.5.2GPRS service descriptionThe PTP service provides a transmission of one or more packets between two users, initiated by a service requester andreceived by a receiver.There are two PTP ser
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