1、 ETSI TS 127 002 V14.0.0 (2017-04) 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 14.0.0 Release 14) TECHNICAL SPECIFICATIO
2、N GLOBAL SYSTEM FOR MOBILE COMMUNICATIONSRETSI ETSI TS 127 002 V14.0.0 (2017-04)13GPP TS 27.002 version 14.0.0 Release 14Reference RTS/TSGC-0327002ve00 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
3、 562 00017 - NAF 742 C Association but non lucratif enregistre la Sous-Prfecture de Grasse (06) N 7803/88 Important notice The present document can be downloaded from: http:/www.etsi.org/standards-search The present document may be made available in electronic versions and/or in print. The content o
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9、e Trade Marks registered and owned by the GSM Association. ETSI ETSI TS 127 002 V14.0.0 (2017-04)23GPP TS 27.002 version 14.0.0 Release 14Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to these e
10、ssential 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 the ETSI Secretariat. Latest upd
11、ates 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 the updates on the ETSI Web ser
12、ver) which are, or may be, or may become, essential to the present document. Foreword This Technical 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 identit
13、ies or GSM identities. These should be interpreted as being references to the corresponding ETSI deliverables. 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 n
14、ot“, “should“, “should not“, “may“, “need not“, “will“, “will not“, “can“ and “cannot“ are to be interpreted 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 ci
15、tation. ETSI ETSI TS 127 002 V14.0.0 (2017-04)33GPP TS 27.002 version 14.0.0 Release 14Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 5g31 Scope 6g31.1 References 6g31.2 Abbreviations . 8g31.3 Definitions 8g32 Reference Configuration 8g32.1 Customer Acce
16、ss Configuration . 8g32.2 Terminal Adaptation Function (TAF) 8g33 Terminal Adaptation Functions for transparent 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 Mappin
17、g - ITU-T V-series interface 9g33.2.1 Mapping of V.24 19 circuits to status bits 9g33.2.2 Single slot 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 C
18、all Establishment and Clearing Signalling Mapping 11g33.4.1 V-series interface Autocalling/answering . 11g33.4.2 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 Ter
19、minal Adaptation Functions for non-transparent services 11g34.1 Data Structure . 11g34.1.1 Data Structure on S Interface 11g34.1.2 Data Structure on R Interface . 12g34.1.3 Data Structure Provided by the L2R Function to the RLP Function . 12g34.2 Signalling Mapping 12g34.2.1 Interchange Circuit Sign
20、alling Mapping - ITU-T V-series interface 12g34.2.2 Call Establishment and Clearing Signalling Mapping 13g34.3 Flow Control 13g34.3.1 Conditions Requiring Flow Control towards the Network . 13g34.3.2 Conditions Requiring Flow Control towards TE2 13g34.3.3 Local Flow Control . 13g34.3.4 Character Ori
21、entated Protocol with No Flow Control 14g34.4 Buffers 14g34.4.1 TX Buffers 14g34.4.2 RX Buffers 14g34.5 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 . 16g35.2 Mobile Termin
22、ated Calls 16g35.3 Call Clearing 17g35.3.1 Mobile initiated . 17g35.3.2 Network initiated 17g3Annex A (normative): L2R Functionality 18g3ETSI ETSI TS 127 002 V14.0.0 (2017-04)43GPP TS 27.002 version 14.0.0 Release 14A.1 Introduction 18g3A.2 The L2RCOP 18g3A.3 Use of the L2RCOP 21g3A.3.1 Radio Link C
23、onnection Control . 21g3A.3.2 Data Transfer 21g3A.3.3 Status Transfer 21g3A.3.4 Flow Control 21g3A.3.5 Break 21g3A.3.5.1 Normal Realization . 21g3A.3.5.2 Realization in case of Data Compression is used 22g3Annex B (informative): Use of a 9 pin connector as an MT2 type interface . 23g3Annex C (inform
24、ative): General mapping of ITU-T V.24 19 circuits to channel status bits 24g3Annex D (informative): Change history . 25g3History 26g3ETSI ETSI TS 127 002 V14.0.0 (2017-04)53GPP TS 27.002 version 14.0.0 Release 14Foreword This Technical Specification has been produced by the 3rdGeneration Partnership
25、 Project (3GPP). The contents of the present document are subject to continuing work within the TSG and 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 i
26、n version number as follows: Version x.y.z where: x the first digit: 1 presented to TSG for information; 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, co
27、rrections, updates, etc. z the third digit is incremented when editorial only changes have been incorporated in the document. ETSI ETSI TS 127 002 V14.0.0 (2017-04)63GPP TS 27.002 version 14.0.0 Release 141 Scope The present document defines the interfaces and Terminal Adaptation Functions (TAF) int
28、egral to a Mobile Termination (MT) which enable the use of asynchronous bearer services in the PLMN and 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 d
29、ocument covers support of these services for the following interfaces and procedures: (i) ITU-T V.14 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 pr
30、ocedures. The asynchronous data rates between the MT and the IWF are defined in 3GPP TS 22.002 5. NOTE: 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
31、 Packet access; - the BS 21 . 26 and BS 31 . 34. The support of these services is still optional. The 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
32、 the scope of the present document although the term “A/Gb mode” is used. GERAN Iu mode is for further 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
33、date of publication, edition number, version number, etc.) or non-specific. For a specific reference, 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: “GS
34、M-UMTS Public Land Mobile Network (PLMN) access reference configuration“. 4 3GPP TS 44.021: “Rate adaption 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
35、UMTS Architecture“. 7 3GPP TR 23.910: “Circuit Switched Data Bearer Services“. 8 3GPP TS 24.008: “Mobile Radio Interface Layer 3 specification; Core Network Protocols-Stage 3“. ETSI ETSI TS 127 002 V14.0.0 (2017-04)73GPP TS 27.002 version 14.0.0 Release 149 3GPP TS 24.022: “Radio Link Protocol (RLP)
36、 for Circuit Switched Bearer and Teleservices“. 10 3GPP TS 27.001: “General on Terminal Adaptation Functions (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 requireme
37、nts on Interworking between the Public Land Mobile Network (PLMN) and the Integrated Services Digital 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
38、 international alphabet No.5 code for character oriented data transmission over public telephone networks“. 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 standardiz
39、ed for use in the general switched telephone network“. 18 ITU-T Recommendation V.22bis (1988): “2400 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
40、-T Recommendation V.24 (1996): “List of definitions for interchange circuits between data terminal equipment (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
41、switched telephone network including procedures for disabling of echo control devices for both manually 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 characte
42、ristics for unbalanced double-current interchange circuits“. 24 ITU-T Recommendation V.32 (1993): “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“. 25 ITU-T Recommendatio
43、n V.42 (1996): “Error-correcting procedures for DCEs using asynchronous-to-synchronous conversion“. 26 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
44、 data terminal equipments with V-Series interfaces by an integrated services digital network“. 28 ITU-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
45、country“. 29 Personal Computer Memory Card Association: “PCMCIA 2.1 or PC-Card 3.0 electrical specification or later revisions“. ETSI ETSI TS 127 002 V14.0.0 (2017-04)83GPP TS 27.002 version 14.0.0 Release 1430 Infrared Data Association IrDA “IrPHY Physical layer signalling standard“. 31 ISO 2110 (1
46、989): “Data communication - 25-pole DTE/DCE interface connector and contact number assignments“. 32 ITU-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
47、listed in TR 21.905 12 the following internal abbreviations are used: CFI Call Failure Indication CRN 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 te
48、rm 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 synonymous with the term MT as
49、 defined in 3GPP TR 21.905 12. In addition to the definitions used in the present document that are listed in TR 21.905 12 the following internal definitions are used: A/Gb mode: indicates that the text applies only to a system or sub-system which operate in A/Gb mode of operation, i.e. with a functional division that is in accordance with the use of an A or a Gb interface between the radio access network and the core network Iu mode: indicates that the text
