1、3400855 0079540 5T2 ETSI GSM GSM 07.02 December 1995 Version 5.0.0 Source: ETSI TC-SMG Reference: TS/SMG-O40702Q ICs: 33.060.50 Key words: Digital cellular telecommunications system, Global System for Mobile communications (GSM) GSKl GLOBAL SYSTEM FOR MOBILE COMMUNICATIONS Digital cellular telecommu
2、nications system (Phase 2+); Terminal Adaptation Functions (TAF) for services us ng asynchronous bearer capabilities (GSM 07.02) ETSI European Telecommunications Standards Institute ETSI Secretariat Postal address: F-O6921 Sophia Antipolis CEDEX - FRANCE Off ice address: 650 Route des Lucioles - Sop
3、hia Antipolis - Valbonne - FRANCE X.400: c=fr, a=atlas, p=etsi, s=secretariat - Internet: secretariatQetsi.fr Tel.: +33 92 94 42 O0 - Fax: +33 93 65 47 16 Copyright Notification: No part may be reproduced except as authorized by written permission. The copyright and the foregoing restriction extend
4、to reproduction in all media. Q European Telecommunications Standards Institute 1995. All rights reserved. ETSI GSM*07*02 9.5 3400855 0079543 439 Page 2 GSM 07.02 Version 5.0.0: December 1995 Whilst every care has been taken in the preparation and publication of this document, errors in content, typ
5、ographical 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. ETSI GSMx07.02 95 3400855 0079542 375 = Page 3 GSM 07.02 Version 5.0.0: December 1995 Contents Foreword . 5 1 Scope 7 1
6、.1 Normative references 7 1.2 Abbreviations . 8 2 Reference configuration 9 2.1 2.2 Customer Access Configuration 9 Terminal Adaptation Function 9 3 Terminal Adaptation Functions for transparent services . 10 3.1 Rate Adaptation . 10 3.1.1 Rate Adaptation . V series 10 3.1.2 Rate Adaptation . S Inte
7、rface (1.420) . 10 Interchange Circuit Signalling Mapping . 10 3.2.1 V.24 Interchange Circuits Mapping . IO Call Establishment Signalling Mapping 11 3.3.1 Autocalling/answering 11 3.3.2 S Interface (1.420) Signalling Mapping 11 3.3.3 Call Establishment Manual Operation - Utilizing Alternate Speech/D
8、ata or Speech Followed By Data Capabilities 11 3.3.4 Call Establishment Manual Operation . Utilizing the Unrestricted Digital Capability . 11 3.2 3.3 4 Terminal Adaptation Functions for non transparent services 12 4.1 Data Structure 12 Data Structure on S Interface 12 Data Structure on R Interface 1
9、2 Data Structure Provided by the L2R Function to the RLP Function 12 4.2 Signalling Mapping . 12 4.3 Flow Control . 12 4.3.1 Conditions Requiring Flow Control towards the Network 12 4.3.2 Conditions Requiring Flow Control towards TE2 . 13 4.3.3 Local Flow Control . 13 4.3.4 Character Orientated Prot
10、ocol with No Flow Control 13 4.4 Buff ers . 13 4.4.1 TX Buffers . 13 4.4.2 RX Buffers . 13 4.5 Bit Transparency 14 4.6 Transportation of BREAK condition 14 4.7 Data Compression . 14 4.1.1 4.1.2 4.1.3 5 Terminal interacing to GSM 04.08 mapping . 17 5.1 5.2 Mobile Originated Calls 17 Mobile Terminated
11、 Calls 18 6 Functionality for the support of dedicated PAD services . 19 Annex A (Normative): L2R Functionality 20 A.l Introduction 20 A.2 The L2RCOP . : . 20 A.3 Use of the ERCOP . 22 A.3.1 Radio Link Connection Control 22 ETSI GSM+07*02 95 E 3400855 0079543 201 Page 4 GSM 07.02 Version 5.0.0: Dece
12、mber 1995 A.3.2 Data Transfer 22 A.3.3 Status Transfer 22 A.3.4 Flow Control 22 A.3.5 Break . 22 A.3.5.1 Normal Realization . 22 A.3.5.2 Realization in case of Data Compression is used 23 Annex B (Informative): Use of the 9 pin version of V.24 as a MT2 type . 24 History . 25 Page 5 GSM 07.02 Version
13、 5.0.0: December 1995 Foreword This Global System for Mobile 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 interfaces and Terminal Adaptatio
14、n Functions (TAF) integral to a Mobile Termination (MT) which enables the attachment of asynchronous terminals to a MT within the digital cellular telecommunications system (Phase 2/Phase 2+). This GTS is a TC-SMG approved GSM technical specification version 5, which contains GSM Phase 2+ enhancemen
15、tdfeaturec to the version 4 GSM technical specification. The European Telecommunications Standard from which this Phase 2+ GTS has evolved is Phase 2 GSM ETS 300 583 (GSM 07.01 version 4.5.1). GTS are produced by TC-SMG to enable the GSM Phase 2 + specifications to become publicly available, prior t
16、o submission for the formal ETSI standards approval procedure to become European Telecommunications Standards (ETS). This ensures the earliest possible access to GSM Phase 2+ specifications for all Manufacturers, Network operators and implementors of the Global System for Mobile communications. The
17、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 version number as follows: Version 5.x.y
18、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. NOTE: TC-SMG has produced documents which give the technical speci
19、fications for the implementation of the digital cellular telecommunications system. Historically, these documents have been identified as GSM Technical Specifications (GSM-TSs). These TSs may have subsequently become I-ETSs (Phase i), or ETSs/ETSI Technical Reports (ETRs) (Phase 2). TC-SMG has also
20、produced ETSI GSM TSs which give the technical specifications for the implementation of Phase 2+ enhancements of the digital cellular telecommunications system. These version 5.x.x GSM Technical Specifications may be referred to as GTSs. ETSI GSN*O7mOZ 75 3400855 O077545 084 Page 6 GSM 07.02 Version
21、 5.0.0: December 1995 Blank page ETSI GSM*07-02 95 m 3400855 0079546 TLO Page 7 GSM 07.02 Version 5.0.0: December 1995 1 Scope This Global System for Mobile communications Technical Specification (GTS) defines the interfaces and Terminal Adaptation Functions (TAF) integral to a Mobile Termination (M
22、T) which enables the attachment of asynchronous terminals to a MT (see GSM 04.02). The general aspects of Terminal Adaptation Functions are contained in GSM 07.01. This specification covers support of these services for the following interfaces and procedures: (i) V.14 procedures (i) V.21 DTUDCE int
23、erface (iii) V.22bis DTUDCE interface (iv) V.23 DTWDCE interface (v) V.32 DTEIDCE procedures (vi) 1.420 S interface (vii) V.25bis signalling procedures The asynchronous data rates between the MT and the TE2 are defined in GSM 02.02. 1.1 Normative references This GTS incorporates by dated and undated
24、 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 incorporated in i
25、t by amendment or revision. For undated references, the latest edition of the publication referred to applies. 31 41 i71 191 GSM O1 .O4 (ETR 100): “European digital cellular telecommunication system (Phase 2); Abbreviations and acronyms“. GSM 02.02 (ETS 300 501): “European digital cellular telecommu
26、nication system (Phase 2); Bearer Services (BS) supported by a GSM Public Land Mobile Network (PLMN)“. GSM 03.10 (ETS 300 528): “European digital cellular telecommunication system (Phase 2); GSM Public Land Mobile Network (PLMN) connection types“. GSM 04.02 (ETS 300 551): “European digital cellular
27、telecommunication system (Phase 2); GSM Public Land Mobile Network (PLMN) access reference configuration“. GSM 04.08 (ETS 300 557): “European digital cellular telecommunication system (Phase 2); Mobile radio interface layer 3 specification“. GSM 04.21 (ETS 300 562): “European digital cellular teleco
28、mmunication system (Phase 2); Rate adaption on the Mobile Station - Base Station System (MS - BSS) interface l. GSM 07.01 (ETS 300 582): “European digital cellular telecommunication system (Phase 2); General on Terminal Adaptation Functions (TAF) for Mobile Stations (MS) l. GSM 09.05 (ETS 300 602):
29、“European digital cellular telecommunication system (Phase 2); Interworking between the Public Land Mobile Network (PLMN) and the Packet Switched Public Data Network (PSPDN) for Packet Assembly/Disassembly (PAD) facility access“. CCITT Recommendation V.4: “General structure of signals of internation
30、al alphabet No.5 code for character oriented data transmission over public telephone networks“. ETSI GSM*07=02 95 3400855 0079547 957 Page 8 GSM 07.02 Version 5.0.0: December 1995 11 o1 11 21 11 31 i 41 i 51 i 71 11 91 1221 CCITT Recommendation V.25 bis (1988): Blue book, Volume VIII, Fascicle VIII.
31、l “Automatic Calling and/or Answering Equipment on the General Switched Telephone Network (GSTN) using the 1 OO-Series Interchange Circuits“. CCITT Recommendation V.110: “Support of data terminal equipments (DTEs) with V-Series interfaces by an integrated services digital network. CCITT Rec. V.24 (1
32、988): Blue book, Volume VIII, Fascicle VIII.l “List of definitions for interchange circuits between data terminal equipment (DTE) and data circuit-terminating equipment“. CCITT Rec. V.21 (1988): Blue book, Volume VIII, Fascicle VIII.l “300 bits per second duplex modem standardized for use in the gen
33、eral switched telephone network“. CCITT Recommendation V.14 (1988): Blue book, Volume VIII, Fascicle VIII.l “Transmission of start-stop characters over synchronous bearer channels“. CCITT Recommendation V.22bis (1 988): Blue book, Volume VIII, Fascicle VIII.l “2400 bits per second duplex modem using
34、 the frequency division technique standardized for use on the general“. CCITT Recommendation V.23 (1988): Blue book, Volume VIII, Fascicle VIII.l “600/1200-baud modem standardized for use in the general switched telephone network. CCITT Recommendation V.32 (1988): Blue book, Volume VIII, Fascicle VI
35、II.l “A family of 2-wire, duplex modems operating at data signalling rates of up to 9600 bit/s for use in the general switched telephone network and on leased telephone-type circuits“. CCITT Recommendation V.42 (1988): Blue book, Volume VIII, Fascicle VIII.l “error-correcting procedures for DCEs usi
36、ng asynchronous-to-synchronous conversion“. ITU-T Recommendation V.42bis: “Data compression procedures for data circuit terminating equipment (DCE) using error correction procedures CCITT Recommendation X.28: “DTE/DCE interface for a start-stop mode data terminal equipment accessing the packet assem
37、bly/disassembly facility (PAD) in a public data network situated in the same country“. Recommendations 1.310-1.470 (Study Group XVIII): Blue book, Volume III, Fascicle 111.8, Overall network aspects and functions, ISDN user-network interfaces. CCITT Recommendation 1.420: Blue book, Volume III, Fasci
38、cle 111.8 “Basic user- network interface“. 1.2 Abbreviations Abbreviations used in this specification are listed in GSM 01.04. Page 9 GSM 07.02 Version 5.0.0: December 1995 2 Reference configuration GSM 07.01 and GSM 04.02 describe the basic reference configurations. 2.1 Customer Access Configuratio
39、n This configuration is as shown in Figure 1 of GSM 04.02. This specification specifically refers to the Mobile Terminations (MTs) which support terminals of the type TE1 and TE2 with asynchronous capabilities. The TAF is functionally a part of an MT1, MT2 or MTO with an integral asynchronous data c
40、apability. 2.2 Terminal Adaptation Function The TAF provides facilities to allow manual or automatic call control functions associated with alternate speech/data, speech followed by data and circuit switched services. The following functions are also included: - Conversion of electrical, mechanical,
41、 functional and procedural characteristics of the V series and ISDN type interfaces to those required by the PLMN; Bit rate adaptation of the V series data signalling rates and the ISDN 64 kbis to that provided in the PLMN: - - The mapping functions necessary to convert automatic calling and/or auto
42、matic answering procedures of recommendation V.25 bis and parameters for asynchronous operation; - The mapping functions necessary to convert S interface signalling to the PLMN Dm channel signalling; - Flow control (in some cases resulting in non-transparency of data as described in section 4.3); -
43、Layer 2 Relaying (see Annex A); - ln-call modification function; - Synchronization procedure, which means the task of synchronizing the entry to and the exit from the data transfer phase between two user terminals. This is described in GSM 07.01; - Filtering of channel control information as describ
44、ed in GSM 07.01; - Terminal compatibility checking. ETSI GSM*07.02 95 m 3400855 0079549 72T Page 10 GSM 07.02 Version 5.0.0: December 1995 3 GSM 03.1 O refers to the connection types supporting the transparent services. 3.1 Rate Adaptation GSM 04.21 describes the rate adaptation scheme to be utilize
45、d over the Base Station (6s) to Mobile Station (MS) link. GSM 03.10 refers to the rate adaptation elements to be provided in the MS. 3.1.1 This is provided as indicated in GSM 04.21. 3.1.2 The ISDN rate adapted frame format is modified to the PLMN rate adapted format as indicated in GSM 04.21. 3.2 I
46、nterchange Circuit Signalling Mapping 3.2.1 V.24 Interchange Circuits Mapping The interface between the TE2 and the MT shall conform to CCITT V.24. The signals required at this interface are shown in Table 2. a) b) GSM 04.21 refers to the frame structure and identifies the use of the status bits for
47、 the carriage of signalling information. Status bits (S1 ,S3,S4,S6,S8,S9 and X): The bits S and X are used to convey channel control information associated with the data bits in the data transfer stage as shown below. The S bits are put into two groups SA and SB to carry the condition of two interch
48、ange circuits. The X bit is used to carry the condition of circuit 106. The mechanism for proper assignment of the control information from the transmitting signal rate adapter interface via these bits to the receiving signal rate adapter interface is shown below in Table 1. For the S and X bits, a
49、ZERO corresponds with the ON condition, a ONE with the OFF condition. Terminal Adaptation Functions for transparent services Rate Adaptation - V series Rate Adaptation - S Interface (1.420) Signal levels at the interface shall conform to CCIlT V.28. Interface function to status bit mapping. Table 1 : General mapping scheme for V.21, V.22 and V.23 interchange circuits. 108 105 106 S1 ,S3,S6,S = SA 107 S4,S9 = SB 1 o9 X 106 TE - IWF IWF - TE ETSI GSM*O7-02 95 = 3400855 0079550 441 Page 11 GSM 07.02 Version 5.0.0: December 1995 3.3 Call Establishment Signalling Mapping 3.3.1
