1、STD-ETSI GSM 07*04-ENGL 1996 3400855 OLb3557 303 - l_l GSM 1 ECHNICAL n SPECIFICATION GSM 09.04 December 1996 Version 5.0.0 Source: ETSI TC-SMG Reference: TS/SMG-O40904Q ICs: 33.020 Key words: Digital cellular telecommunications system, Global System for Mobile communications (GSM) GLOBAL SYSTEM FOR
2、 MOBILE COILIMJNlCATIONS Digital cellular telecommunications system; Interworking between the Public Land Mobile Network (PLMN) and the Circuit Switched Public Data Network (CSPDN) (GSM 09.04) ETSI European Telecommunications Standards Institute ETSI Secretariat Postal address: F-O6921 Sophia Antipo
3、lis CEDEX - FRANCE Office address: 650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCE X.400: c=fr, a=atlas, p=ets, s=secretariat - Internet: secretariat Q et.si.fr Tel.: +33 4 92 94 42 O0 - Fax: +33 4 93 65 47 16 Copyright Notification: No pari may be reproduced except as authorized by wr
4、itten permission. The copyright and the foregoing restriction extend to reproduction in all media. Q European Telecommunications Standards Institute 1996. All rights reserved. - STD-ETSI GSM OS-Oq-ENGL LS7b 3Li00855 OLb3558 2LiT Page 2 GSM 09.04 version 5.0.0: December 1996 Whilst every care has bee
5、n taken in the preparation and publication of this document, errors in content, typographical or otherwise, may occur. If you have comments concerning its accuracy, please write to “ETSI Editing and Committee Support Dept.“ at the address shown on the title page. . STD-ETSI GSM OS-09-ENGL 177b 34008
6、55 OLb3557 LBb Page 3 GSM 09.04 version 5.0.0: December 1996 Contents Foreword . 5 1 2 3 4 5 6 7 Scope 7 Normative references 7 Definitions and abbreviations 8 Introduction 9 Network characteristics . 9 5.1 Key characteristics of Network concerned . 9 Interworking classification . 9 6.1 Service inte
7、rworking . 9 6.2 Network interworking . 9 6.3.1 Connection CSPDN . 10 6.3.2 6.3.3 6.3 Signalling interworking . 10 Multiplexing schemes. CCIlT X.51 . 10 Allocation of channels. X.54 10 Supplementary service interworking 10 Network interworking mobile originated 11 6.4 Numbering . 10 6.5 Network inte
8、rworking . 10 7.1 Checking bearer capabilities 10 7.1.1 7.1.1.1 Home IWF access . 11 7.1.1.2 Visited IWF access 11 7.1.2 Network interworking mobile terminated . 12 Transparent service support 12 7.2.1 7.2.2 Rate adaptation in the IWF . 13 7.2.3 Mapping of signalling MSAWF to CSPDN signalling . 13 7
9、.2.4 Establishment of end-to-end terminal synchronization 13 7.2 MSC to IWF rate adaptation scheme 12 History 15 Page 4 GSM 09.04 version 5.0.0: December 1996 Blank page - STD-ETSI GSM 09-04-ENGL L99b 3400855 OLb35bL 834 Page 5 GSM 09.04 version 5.0.0: December 1996 Foreword This Global System for M
10、obile communications Technical Specification (GTS) has been produced by the Special Mobile Group (SMG) Technical Committee (TC) of the European Telecommunications Standards Institute (ETSI). This GTS defines the Interworking between the Circuit Switched Public Data Network (CSPDN) and the digital ce
11、llular telecommunications system. The contents of this GTS are subject to continuing work within TC-SMG and may change following formal TC-SMG approval. Should TC-SMG modify the contents of this GTS it will then be republished by ETSI with an identifying change of release date and an increase in ver
12、sion number as follows: Version 5.x.y where: y the third digit is incremented when editorial only changes have been incorporated in the specification; x the second digit is incremented for all other types of changes, .e. technical enhancements, corrections, updates, etc. The specification from which
13、 this GTS has been derived was originally based on CEPT documentation, hence the presentation of this GTS may not be entirely in accordance with the ETSVPNE rules. Page 6 GSM 09.04 version 5.0.0: December 1996 Blank page - STD-ETSI GSM 07.04-ENGL L77b 3400855 OLb35b3 bu7 Page 7 GSM 09.04 version 5.0
14、.0: December 1996 1 Scope This Global System for Mobile communications Technical Specification (GTS) identifies the Interworking Functions (IWF)s and requirements to support interworking between PLMN and Circuit Switched Public Data Network (CSPDN). 2 Normat ive references This GTS incorporates by d
15、ated and undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this GTS only when i
16、ncorporated in it by amendment or revision. For undated references, the latest edition of the publication referred to applies. 31 71 i 31 i 41 GSM O1 .O4 (ETR 350): “Digital cellular telecommunications system (Phase 2+); Abbreviations and acronyms“. CCITT Recommendation V.110: “Support of Data Termi
17、nal Equipments (DTEs) with V-Series interfaces by an integrated services digital network“. CCITT Recommendation X.51: “Fundamental parameters of multiplexing scheme for international interface between synchronous data networks using 1 O bit envelope structure“. CCITT Recommendation X.54: “Allocation
18、 of channels on international multiplex links at 64 kbps“. CCITT Recommendation X.121: “International numbering plan for public data networks“. CCITT Recommendation X.300: “General principles and arrangements for interworking between public data networks, and between public data networks and other n
19、etworks“. CCITT Recommendation X.21: “interface between Data Terminal Equipment (DTE) and Data Circuit terminating Equipment (DCE) for synchronous operations in public data networks“. CCITT Recommendation X.30: “Support of X.21 ,X.21 bis and X.20 bis based Data Terminal Equipments (DTEs) by integrat
20、ed Services Digital Network (ISDN)“. CCITT Recommendation X.71: “Decentralized terminal and transit control signalling system on international circuits between synchronous data networks“. CCITT Recommendation (2.931 : “Integrated Services Digital Network (ISDN). User-Network interface layer 3 specif
21、ication for basic control“. CCITT Recommendation Q.921: “Integrated Services Digital Network (ISDN). User-Network interface - Data link layer specification“. CCITT Recommendation 1.461 : “Support of X.21, X.21 bis and X.20bis based Data Terminal Equipment (DTEs) by Integrated Services Digital Networ
22、k (ISDN)“. GSM 02.01 : “Digital cellular telecommunications system (Phase 2+); Principles of telecommunications services supported by a GSM Public Land Mobile Network (PLMN)“. GSM 02.02 (ETS 300 904): “Digital cellular telecommunications system (Phase2+); Bearer Services (BS) supported by a GSM Publ
23、ic Land Mobile Network (PLMN)“. STD-ETSI GSM 07.04-ENGL L77b m 3400855 Olb35b4 543 m Page 8 GSM 09.04 version 5.0.0: December 1996 i 51 11 71 GSM 02.03 (ETS 300 905): “Digital cellular telecommunications system (Phase 2+); Teleservices supported by a GSM Public Land Mobile Network (PLMN)“. GSM 02.04
24、 (ETS 300 91 8): “Digital cellular telecommunications system (Phase 2+); General on supplementary services“. GSM 03.70: “Digital cellular telecommunications system; Routeing of calls to/from Public Data Networks (PDN) and the GSM Public Land Mobile Network (PLM N)“. GSM 04.21 (ETS 300 945): “Digital
25、 cellular telecommunications system; Rate adaption on the Mobile Station - Base Station System (MS - BSS) interface“. GSM 04.22 (ETS 300 946): “Digital cellular telecommunications system (Phase2+); Radio Link Protocol (RLP) for data and telematic services on the Mobile Station - Base Station System
26、(MS - BSS) interface and the Base Station System - Mobile-services Switching Centre (BSS - MSC) interface“. GSM 08.20: “Digital cellular telecommunications system; Rate adaption on the Base Station System - Mobile-services Switching Centre (BSS - MSC) interface“. GSM 09.07 (ETS 300 976): “Digital ce
27、llular telecommunications system (Phase 2+); General requirements on interworking between the Public Land Mobile Network (PLMN) and the Integrated Services Digital Network (ISDN) or Public Switched Telephone Network (PSTN)“. GSM 04.08 (ETC 300 940): “Digital cellular telecommunications system (Phase
28、 2+); Mobile radio interface layer 3 specification“. GSM 07.03 (ETS 300 91 5): “Digital cellular telecommunications system (Phase 2+); Terminal Adaptation Functions (TAF) for services using synchronous bearer capabilities“. 3 Definitions and abbreviations Use is made of the following terms within th
29、is GTS. These terms refer to information requirements necessary to support interworking functions, some of these terms will be identifiable with their use in other specifications. - Bearer capability information Specific information defining the lower layer characteristics required within the networ
30、k. - Lower layer capability information Information defining the lower layer characteristics of the terminal. - Higher layer compatibility information Information defining the higher layer characteristics of a teleservice in accordance with GSM 02.03 used by the terminal. - Protocol identifier Infor
31、mation defining the specific protocols utilized for the support of data transfer by a terminal. - Progress indicator Information supplied to indicate to the terminal that the network interworking has taken place. - Out of band parameter exchange Information exchanged via an associated or non-associa
32、ted signalling link e.g. SS No7. Abbreviations used in this GTS are listed in GSM 01.04. STD-ETSI GSM 09-OLi-ENGL L77b m 3900855 OLb35b5 Li8T Page 9 GSM 09.04 version 5.0.0: December 1996 Characteristics Subscriber Interface User-network signalling User-terminal equipment 4 Introduction GSM PLMN CSP
33、DN ISDN Digital Digital Digital GSM 04.08 X.21, X.21 bis Q.931, Q.921 See GSM 07.03 X.21, X21 bis-terminals .There are two ways to interwork with the CSPDN, directly or via the ISDN. supported Inter-exchange signalling Transmission facilities Exchange types Information transfer mode Information tran
34、sfer capability Direct interworking: 1 CSPDN Interworking via ISDN: CSPDN SS N0.7 ISUP,TUP+,MAP X.71 ISUP, TUP+ Digital Digital Digital Digital Digital Digital Circuit Circuit Circuit Digital unrestricted Circuit switched data Digital Only synchronous interworking with the speeds 2 400, 4 800 and 9
35、600 shall be possible. Depending on the fact that it is impossible to flowcontrol the terminals connected to the CSPDN only transparent services in PLMN are used. No particular functionality is needed in a VPLMN without a connected CSPDN for support of CSPDN access for roaming subscribers. 5 Network
36、 characteristics 5.1 Key characteristics of Network concerned I I Itransmission services (unrestricted I 6 Interworking classification 6.1 Service interworking No service interworking has been identified as a requirement of the GSM system. 6.2 Network interworking Network interworking is required wh
37、enever a PLMN and a non-PLMN together are involved to provide an end to end connection and may be required in instances of PLMN to PLMN connections. The concept of Bearer Services was developed for the ISDN and has been extended to GSM in accordance with GSM 02.02. A bearer service is defined as: ST
38、D-ETSI GSM 07-09-ENGL L77b m 3900855 OLb35bb 31b m Page 10 GSM 09.04 version 5.0.0: December 1996 Parameter name In band Out of band ITC, Info transfer capability UD1 UR, User rate SA, SyndAsync Sync RCR, Radio Channel Requirement HR,FR,dualFR,dualHR SETUP or CALL CONF - 2 400,4 800,9 600 CE, Connec
39、tion T A type of telecommunication service that provides the capability for the transmission of signals between user-network interfaces. Access at mobile station Data cct duplex synchronous 2,4 kbitls Data cct duplex synchronous 48 kbiWs Data cct duplex synchronous 9,6 kbiffs Connection Type Circuit
40、 mode unstructured (8 kbitls) with unrestricted digital capability Circuit mode unstructured (8 kbiWs) with unrestricted digital capability Circuit mode unstructured (16 kbiffs) with unrestricted digital capability Data transmission Bearer Service in service in CSPDN I ISDN circuit switcned user cla
41、ss 4 cct mode structured 64 kbiWs unrestricted user class 5 circuit switched user class 6 The network interworking is described in clause 7. 6.3 Signalling interworking 6.3.1 Connection CSPDN PLMN is connected to CSPDN using an interworking function according to CCITT X.300. The interface between IW
42、F and CSPDN is in accordance to CCITT X.71 (Direct interworking). If PLMN is connected to CSPDN via ISDN the interface to ISDN shall be according to GSM 09.07 and the information rate adapted according to CCITT X.30. 6.3.2 Multiplexing schemes, CCIlT X.51 The multiplexing schemes for the X.71 connec
43、tions shall be in accordance with CCITT X.51. Housekeeping bits shall be allocated in the same way as for DSE to DSE in CSPDN. 6.3.3 Allocation of channels, X.54 The allocation of channels on the X.71 connection shall be according to CCIlT recommendation X.54. 6.4 Numbering Numbering shall be in lin
44、e with GSM 03.70. 6.5 Supplementary service intennrorking Supplementary service interworking between GSM PLMN and CSPDN is described in GSM 02.04, GSM 02.8 and 02.9x-series, GSM 03.1 1, GSM 03.8 and 03.9x-series, if applicable. 7 Network interworking 7.1 Checking bearer capabilities The table shows
45、bearer capability elements and the values. Just the element user rate is optionally. STD-ETSI GSM OS-OLi-ENGL 1996 3400855 OLb35b7 252 Page 11 GSM 09.04 version 5.0.0: December 1996 7.1.1 Network interworking mobile originated Bearer capability compatibility checking of the mobile originated call is
46、 carried out by the IWF to determine the appropriate data transmission service class in the CSPDN. If it is not possible for the IWF to provide a bearer service match, then the IWF shall fail the call and indicate the reason to the user. As well as compatibility checking, the network shall check the
47、 subscribers subscription parameters, see GSM 02.01, to ensure that the calling mobile does subscribe to the requested service. 7.1.1.1 Home IWF access Home IWF access would be available to a mobile subscriber if the home PLMN has a CSPDN IWF. Figure 09.04/1 illustrates both the case when the mobile
48、 subscriber is present in the home PLMN and when present in a visited PLMN that does not support a CSPDN IWF. country A country B ISDN Note 2 NOTE 1: Home IWF Access via home PLMN for a mobile in VPLMN may not be possible (HPLMN as transit network). NOTE 2: IWF for ISDN must be provided in VPLMN. Th
49、is connection presumes E.164 addressing capability and two step dialling. Figure 09.04/1: Home IWF access 7.1.1.2 Visited IWF access A visited IWF access would be available to a mobile subscriber if the visited PLMN has a CSPDN IWF. This is shown in figure 09.04/2. STD-ETSI GSM OS*OLi-ENGL L7Sb 3400855 OLb35bA 177 Page 12 GSM 09.04 version 5.0.0: December 1996 : IWF I .* I Figure 09.04/2 Visited IWF access * 7.1.2 Network interworking mobile terminated Bearer capability compatibility checking of the CSPDN originated call is carried out by the IWF to
