1、 ETSI TS 127 002 V15.0.0 (2018-07) Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); Terminal Adaptation Functions (TAF) for services using asynchronous bearer capabilities (3GPP TS 27.002 version 15.0.0 Release 15) TECHNICAL SPECIFICATIO
2、N GLOBAL SYSTEM FOR MOBILE COMMUNICATIONSRETSI ETSI TS 127 002 V15.0.0 (2018-07)13GPP TS 27.002 version 15.0.0 Release 15Reference RTS/TSGC-0327002vf00 Keywords GSM,UMTS ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N 348 623
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9、 GSM logo are trademarks registered and owned by the GSM Association. ETSI ETSI TS 127 002 V15.0.0 (2018-07)23GPP TS 27.002 version 15.0.0 Release 15Intellectual Property Rights Essential patents IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The in
10、formation pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found in ETSI SR 000 314: “Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect of ETSI standards“, which is available from t
11、he ETSI Secretariat. Latest updates are available on the ETSI Web server (https:/ipr.etsi.org/). Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or
12、the updates on the ETSI Web server) which are, or may be, or may become, essential to the present document. Trademarks The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners. ETSI claims no ownership of these except for any which are indica
13、ted as being the property of ETSI, and conveys no right to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks. Foreword This Technical
14、Specification (TS) has been produced by ETSI 3rd Generation Partnership Project (3GPP). The present document may refer to technical specifications or reports using their 3GPP identities, UMTS identities or GSM identities. These should be interpreted as being references to the corresponding ETSI deli
15、verables. The cross reference between GSM, UMTS, 3GPP and ETSI identities can be found under http:/webapp.etsi.org/key/queryform.asp. Modal verbs terminology In the present document “shall“, “shall not“, “should“, “should not“, “may“, “need not“, “will“, “will not“, “can“ and “cannot“ are to be inte
16、rpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of provisions). “must“ and “must not“ are NOT allowed in ETSI deliverables except when used in direct citation. ETSI ETSI TS 127 002 V15.0.0 (2018-07)33GPP TS 27.002 version 15.0.0 Release 15Contents Intel
17、lectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 5g31 Scope 6g31.1 References 6g31.2 Abbreviations . 8g31.3 Definitions 8g32 Reference Configuration 8g32.1 Customer Access Configuration . 8g32.2 Terminal Adaptation Function (TAF) 8g33 Terminal Adaptation Functions for t
18、ransparent services 9g33.1 Rate Adaptation in A/Gb mode 9g33.1.1 Rate Adaptation - R interface . 9g33.1.2 Rate Adaptation - S Interface (ITU-T I.420 14) . 9g33.2 Interchange Circuit Signalling Mapping - ITU-T V-series interface 9g33.2.1 Mapping of V.24 19 circuits to status bits 9g33.2.2 Single slot
19、 configurations (TCH/F9.6 or TCH/F4.8) 10g33.2.3 Multislot configurations (TCH/F9.6 or TCH/F4.8) 10g33.2.4 Channel codings TCH/F14.4, TCH/F28.8 10g33.3 Interface Signal Levels - R interface 10g33.4 Call Establishment and Clearing Signalling Mapping 10g33.4.1 V-series interface Autocalling/answering
20、. 10g33.4.2 S Interface (I.420) Signalling Mapping 11g33.4.3 Call Establishment Manual Operation - Utilizing the Unrestricted Digital Capability . 11g33.4.4 V-series interface Call Clearing 11g34 Terminal Adaptation Functions for non-transparent services 11g34.1 Data Structure . 11g34.1.1 Data Struc
21、ture on S Interface 11g34.1.2 Data Structure on R Interface . 11g34.1.3 Data Structure Provided by the L2R Function to the RLP Function . 11g34.2 Signalling Mapping 12g34.2.1 Interchange Circuit Signalling Mapping - ITU-T V-series interface 12g34.2.2 Call Establishment and Clearing Signalling Mappin
22、g 12g34.3 Flow Control 12g34.3.1 Conditions Requiring Flow Control towards the Network . 12g34.3.2 Conditions Requiring Flow Control towards TE2 13g34.3.3 Local Flow Control . 13g34.3.4 Character Orientated Protocol with No Flow Control 13g34.4 Buffers 13g34.4.1 TX Buffers 13g34.4.2 RX Buffers 13g34
23、.5 Bit Transparency 14g34.6 Transportation of “BREAK“ condition 14g34.7 Data Compression 14g35 Terminal interfacing to 3GPP TS 24.008 8 Mapping 15g35.1 Mobile Originated Calls . 15g35.2 Mobile Terminated Calls 15g35.3 Call Clearing 16g35.3.1 Mobile initiated . 16g35.3.2 Network initiated 16g3Annex A
24、 (normative): L2R Functionality 17g3ETSI ETSI TS 127 002 V15.0.0 (2018-07)43GPP TS 27.002 version 15.0.0 Release 15A.1 Introduction 17g3A.2 The L2RCOP 17g3A.3 Use of the L2RCOP 20g3A.3.1 Radio Link Connection Control . 20g3A.3.2 Data Transfer 20g3A.3.3 Status Transfer 20g3A.3.4 Flow Control 20g3A.3.
25、5 Break 20g3A.3.5.1 Normal Realization . 20g3A.3.5.2 Realization in case of Data Compression is used 21g3Annex B (informative): Use of a 9 pin connector as an MT2 type interface . 22g3Annex C (informative): General mapping of ITU-T V.24 19 circuits to channel status bits 23g3Annex D (informative): C
26、hange history . 24g3History 25g3ETSI ETSI TS 127 002 V15.0.0 (2018-07)53GPP TS 27.002 version 15.0.0 Release 15Foreword This Technical Specification has been produced by the 3rdGeneration Partnership Project (3GPP). The contents of the present document are subject to continuing work within the TSG a
27、nd may change following formal TSG approval. Should the TSG modify the contents of the present document, it will be re-released by the TSG with an identifying change of release date and an increase in version number as follows: Version x.y.z where: x the first digit: 1 presented to TSG for informati
28、on; 2 presented to TSG for approval; 3 or greater indicates TSG approved document under change control. y the second digit is incremented for all changes of substance, i.e. technical enhancements, corrections, updates, etc. z the third digit is incremented when editorial only changes have been incor
29、porated in the document. ETSI ETSI TS 127 002 V15.0.0 (2018-07)63GPP TS 27.002 version 15.0.0 Release 151 Scope The present document defines the interfaces and Terminal Adaptation Functions (TAF) integral to a Mobile Termination (MT) which enable the use of asynchronous bearer services in the PLMN a
30、nd the attachment of asynchronous terminals to a MT (see 3GPP TS 24.002 3 and 3GPP TS 23.101 6). The general aspects of Terminal Adaptation Functions are contained in 3GPP TS 27.001 10. The present document covers support of these services for the following interfaces and procedures: (i) ITU-T V.14
31、16 procedures. (ii) ITU-T V.21 17 DTE/DCE interface. (iii) ITU-T V.22bis 18 DTE/DCE interface. (iv) ITU-T V.32 24 DTE/DCE procedures. (v) ITU-T I.420 14 S interface. (vi) ITU-T V.250 22 signalling procedures. The asynchronous data rates between the MT and the IWF are defined in 3GPP TS 22.002 5. NOT
32、E: From GSM R99 onwards the following services are no longer required in a PLMN: - the dual Bearer Services “alternate speech/data“ and “speech followed by data“; - the dedicated services for PAD and Packet access; - the BS 21 . 26 and BS 31 . 34. The support of these services is still optional. The
33、 specification of these services is not within the scope of the present document. For that, the reader is referred to GSM Release 98. NOTE: Please note that the Gb interface does not play any role in the scope of the present document although the term “A/Gb mode” is used. GERAN Iu mode is for furthe
34、r study. 1.1 References The following documents contain provisions which, through reference in this text, constitute provisions of the present document. References are either specific (identified by date of publication, edition number, version number, etc.) or non-specific. For a specific reference,
35、 subsequent revisions do not apply. For a non-specific reference, the latest version applies. 1 Void. 2 3GPP TS 43.010: “GSM Public Land Mobile Network (PLMN) connection types“. 3 3GPP TS 24.002: “GSM-UMTS Public Land Mobile Network (PLMN) access reference configuration“. 4 3GPP TS 44.021: “Rate ada
36、ption on the Mobile Station - Base Station System (MS - BSS) interface“. 5 3GPP TS 22.002: “Circuit Bearer Services (BS) supported by a Public Land Mobile Network (PLMN)“. 6 3GPP TS 23.101: “General UMTS Architecture“. 7 3GPP TR 23.910: “Circuit Switched Data Bearer Services“. 8 3GPP TS 24.008: “Mob
37、ile Radio Interface Layer 3 specification; Core Network Protocols-Stage 3“. ETSI ETSI TS 127 002 V15.0.0 (2018-07)73GPP TS 27.002 version 15.0.0 Release 159 3GPP TS 24.022: “Radio Link Protocol (RLP) for Circuit Switched Bearer and Teleservices“. 10 3GPP TS 27.001: “General on Terminal Adaptation Fu
38、nctions (TAF) for Mobile Stations (MS)“. 11 3GPP TS 27.007: “AT command set for 3G User Equipment (UE)“. 12 3GPP TR 21.905: “Vocabulary for 3GPP Specifications“. 13 3GPP TS 29.007: “General requirements on Interworking between the Public Land Mobile Network (PLMN) and the Integrated Services Digital
39、 Network (ISDN) or Public Switched Telephone Network (PSTN)“. 14 ITU-T Recommendation I.420 (1998):“Basic user-network interface“. 15 ITU-T Recommendation V.4 (1988): “General structure of signals of international alphabet No.5 code for character oriented data transmission over public telephone netw
40、orks“. 16 ITU-T Recommendation V.14 (1993): “Transmission of start-stop characters over synchronous bearer channels“. 17 ITU-T Recommendation V.21 (1988): “300 bits per second duplex modem standardized for use in the general switched telephone network“. 18 ITU-T Recommendation V.22bis (1988): “2400
41、bits per second duplex modem using the frequency division technique standardized for use on the general switched telephone network and on point-to-point 2-wire leased telephone-type circuits“. 19 ITU-T Recommendation V.24 (1996): “List of definitions for interchange circuits between data terminal eq
42、uipment (DTE) and data circuit-terminating equipment (DCE)“. 20 ITU-T Recommendation V.25 (1996): “Automatic answering equipment and general procedures for automatic calling equipment on the general switched telephone network including procedures for disabling of echo control devices for both manual
43、ly and automatically established calls“. 21 Void. 22 ITU-T Recommendation V.250 (1999): “Serial asynchronous automatic dialling and control“. 23 ITU-T Recommendation V.28 (1993): “Electrical characteristics for unbalanced double-current interchange circuits“. 24 ITU-T Recommendation V.32 (1993): “A
44、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“. 25 ITU-T Recommendation V.42 (1996): “Error-correcting procedures for DCEs using asynchronous-to-synchronous conversion“. 2
45、6 ITU-T Recommendation V.42 bis (1990): “Data compression procedures for data circuit-terminating equipment (DCE) using error correction procedures“. 27 ITU-T Recommendation V.110 (1996): “Support of data terminal equipments with V-Series interfaces by an integrated services digital network“. 28 ITU
46、-T Recommendation X.28 (1997): “DTE/DCE interface for a start-stop mode Data Terminal Equipment accessing the Packet Assembly/Disassembly facility (PAD) in a public data network situated in the same country“. 29 Personal Computer Memory Card Association: “PCMCIA 2.1 or PC-Card 3.0 electrical specifi
47、cation or later revisions“. ETSI ETSI TS 127 002 V15.0.0 (2018-07)83GPP TS 27.002 version 15.0.0 Release 1530 Infrared Data Association IrDA “IrPHY Physical layer signalling standard“. 31 ISO 2110 (1989): “Data communication - 25-pole DTE/DCE interface connector and contact number assignments“. 32 I
48、TU-T Recommendation Q.931 (1998): “ISDN user-network interface layer 3 specification for basic call control“. 1.2 Abbreviations In addition to the abbreviations used in the present document that are listed in TR 21.905 12 the following internal abbreviations are used: CFI Call Failure Indication CRN
49、 Call Request with Number DIC Disregard Incoming Call IA5 International Alphabet no. 5 INC INcoming Call INV INValidITU-T ITU-Telecommunication Standardization Sector VAL VALid 1.3 Definitions The term mobile station (MS) in the present document is synonymous with the term user equipment (UE ) as defined in 3GPP TR 21.905 12. The term TE2 in the present document is synonymous with the term TE as defined in 3GPP TR 21.905 12. The term MT2 in the present document is
