1、 ETSI TS 124 022 V14.0.0 (2017-03) Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); Radio Link Protocol (RLP) for circuit switched bearer and teleservices (3GPP TS 24.022 version 14.0.0 Release 14) TECHNICAL SPECIFICATION GLOBAL SYSTEM F
2、OR MOBILE COMMUNICATIONSRETSI ETSI TS 124 022 V14.0.0 (2017-03)13GPP TS 24.022 version 14.0.0 Release 14Reference RTS/TSGC-0324022ve00 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 348 623 562 00017 - NAF
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9、istered and owned by the GSM Association. ETSI ETSI TS 124 022 V14.0.0 (2017-03)23GPP TS 24.022 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 essential IPRs, if
10、 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 updates are availabl
11、e 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 server) which are, o
12、r may be, or may become, essential to the present document. Foreword 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 deliverables. The cross
13、 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 interpreted as describe
14、d 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 124 022 V14.0.0 (2017-03)33GPP TS 24.022 version 14.0.0 Release 14Contents Intellectual Property Ri
15、ghts 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 5g31 Scope 6g32 References 6g32.1 Definitions and abbreviations . 8g32.1.1 Abbreviations 8g32.1.2 Definitions 8g33 Introduction 9g34 Frame structure . 10g34.1 Basic frame structure 10g34.2 RLP header . 10g34.3 Order of transmission . 10g34.
16、4 Frame check sequence 10g35 Elements and procedure . 11g35.1 Modes . 11g35.1.1 Asynchronous Balanced Mode (ABM). 11g35.1.2 Asynchronous Disconnected Mode (ADM) . 11g35.2 Header and parameters . 12g35.2.1 Generally used bits 12g35.2.1.1 Command/response bit, C/R . 12g35.2.1.2 Poll/Final bit, P/F 13g
17、35.2.2 Unnumbered frames, U . 13g35.2.2.1 Set asynchronous balanced mode SABM (11100) 13g35.2.2.2 Unnumbered Acknowledge. UA (00110) . 13g35.2.2.3 Disconnect, DISC (00010) 13g35.2.2.4 Disconnected Mode, DM (11000) . 13g35.2.2.5 Unnumbered Information, UI (00000) 13g35.2.2.6 Exchange Identification,
18、XID (11101) 14g35.2.2.7 Test, TEST (00111) . 15g35.2.2.8 Null information, NULL (11110) 15g35.2.2.9 REMAP (10001) . 15g35.2.3 Supervisory frames, S, and numbered information transfer and supervisory frames combined, I+S . 16g35.2.3.1 Numbering 16g35.2.3.2 Send Sequence number, N(S) 16g35.2.3.3 Recei
19、ve sequence number, N(R) . 16g35.2.3.4 L2R Status bit 16g35.2.3.5 Receive ready, RR (00) . 16g35.2.3.6 Reject, REJ (01) 16g35.2.3.7 Receive not ready, RNR (10) 17g35.2.3.8 Selective reject, SREJ (11) 17g35.2.3.9 Upgrading Proposal bit, UP bit . 17g35.3 Error Recovery . 17g35.3.1 Improper frames 17g3
20、5.3.2 N(S) sequence error 17g35.3.3 N(R) error . 18g35.3.4 Time-out and checkpointing . 18g35.3.4.1 Treatment of errors during link establishment, link reset and link disconnect 18g35.3.4.2 Treatment of errors during numbered information transfer . 18g35.3.5 Contentious situations . 18g35.4 Transiti
21、ons between 240 bit and 576 bit frame lengths 19g35.5 List of system parameters . 19g3ETSI ETSI TS 124 022 V14.0.0 (2017-03)43GPP TS 24.022 version 14.0.0 Release 145.5.1 RLP Version N 20g35.5.2 Maximum number of outstanding I frames k (Window size) . 20g35.5.3 Timer T1. 21g35.5.4 Maximum number of
22、retransmissions N2 . 21g35.5.5 Data Compression Parameters 21g35.5.6 Re-sequencing period (Timer T4) . 21g35.5.7 Optional features . 21g35.6 Support for discontinuous transmission (DTX) 22g35.6.1 In case of A/Gb mode . 22g35.6.2 In case of Iu mode . 22g36 Service definitions 22g36.1 Introduction 22g
23、36.2 Conventions 23g36.3 Queue model 23g36.4 List of Primitives 24g36.5 Possible RLP time sequence diagrams . 26g3Annex A (informative): RLP SDL Diagrams . 29g3A.1 List of RLP entity states . 29g3A.1.1 (main) states . 29g3A.1.2 state variables . 30g3A.2 List of RLP entity events 32g3Annex B (informa
24、tive): Change history . 64g3History 65g3ETSI ETSI TS 124 022 V14.0.0 (2017-03)53GPP TS 24.022 version 14.0.0 Release 14Foreword This Technical Specification (TS) has been produced by ETSI 3rd Generation Partnership Project (3GPP). The present document specifies the Radio Link Protocol (RLP) for circ
25、uit switched data transmission within the 3GPP system. 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 ch
26、ange 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 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 subs
27、tance, i.e. technical enhancements, corrections, updates, etc. z the third digit is incremented when editorial only changes have been incorporated in the document. ETSI ETSI TS 124 022 V14.0.0 (2017-03)63GPP TS 24.022 version 14.0.0 Release 141 Scope The present document specifies the Radio Link Pro
28、tocol (RLP) for circuit switched data transmission within a PLMN. RLP covers the Layer 2 functionality of the ISO OSI Reference Model (ISO/IEC 7498 22). It is based on ideas contained in ISO/IEC 3309 21, ISO/IEC 4335 20 and ISO/IEC 7809 26 (HDLC of ISO) as well as ITU-T Recommendation X.25 30 and Q.
29、92x (LAP-B and LAP-D of ITU, respectively.) RLP has been tailored to the special needs of digital radio transmission. RLP provides to its users the OSI Data Link Service (ISO/IEC 8886 24). RLP is intended for use with non-transparent data-transfer. Protocol conversion may be provided for a variety o
30、f protocol configurations. Those foreseen immediately are: - character-mode protocols using start-stop transmission (IA5); - X.25 LAP-B. For reasons of better presentation, material about protocol conversion has been placed within those Specifications concerned with the relevant Terminal Adapters, i
31、.e. 3GPP TS 27.002 10 for the asynchronous case and 3GPP TS 27.003 11 for the synchronous case. Care must be taken that that material also applies to Interworking Functions; see 3GPP TS 29.007 13. The present document is valid for a PLMN in A/Gb mode as well as in Iu mode. If text applies only for o
32、ne of these systems it is explicitly mentioned by using the terms “A/Gb mode“ and “Iu mode“. 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. 2 References The following documents contain provisions which, through re
33、ference 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, subsequent revisions do not apply. For a non-specific reference, the latest version
34、 applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present document. 1 Void. 2 3GPP TS 44.021: “Rate adaption on the Mobile Station - Base Station System (MS
35、- BSS) interface“. 3 3GPP TS 48.004: “Base Station System - Mobile services Switching Centre (BSS - MSC) interface Layer 1 specification“. 4 3GPP TS 48.020: “Rate adaption on the Base Station System - Mobile services Switching Centre (BSS - MSC) interface“. 5 3GPP TS 25.410: “UTRAN Iu interface: Gen
36、eral Aspects and Principles“. 6 3GPP TS 25.411: “UTRAN Iu interface Layer 1“. 7 3GPP TS 25.414: “UTRAN Iu interface data transport and transport signalling“. 8 3GPP TS 25.415: “UTRAN Iu interface user plane protocols“. 9 3GPP TS 27.001: “General on Terminal Adaptation Functions (TAF) for Mobile Stat
37、ions (MS)“. 10 3GPP TS 27.002: “Terminal Adaptation Functions (TAF) for services using Asynchronous bearer capabilities“. ETSI ETSI TS 124 022 V14.0.0 (2017-03)73GPP TS 24.022 version 14.0.0 Release 1411 3GPP TS 27.003: “Terminal Adaptation Functions (TAF) for services using Synchronous bearer capab
38、ilities“. 12 Void. 13 3GPP TS 29.007: “General requirements 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 Q.920: “ISDN user-network interface data link layer - Gen
39、eral aspects“. 15 ITU-T Recommendation Q.921: “ISDN user-network interface - Data link layer specification“. 16 ITU-T Recommendation Q.921bis: “Abstract test suite for LAPD conformance testing“. 17 ITU-T Recommendation Q.922: “ISDN data link layer specification for frame mode bearer services“. 18 IT
40、U-T Recommendation V.42bis: “Data compression procedures for Data Circuit-terminating Equipment (DCE) using error correction procedures“. 19 ITU-T Recommendation X.25: “Interface between Data Terminal Equipment (DTE) and Data Circuit-terminating Equipment (DCE) for terminals operating in packet mode
41、 and connected to public data networks by dedicated Circuit“. 20 ISO/IEC 4335: “Information technology - Telecommunications and information exchange between systems - High-level Data Link Control (HDLC) procedures - Elements of procedures“. 21 ISO/IEC 3309: “Information technology - Telecommunicatio
42、ns and information exchange between systems - High-level Data Link Control (HDLC) procedures - Frame structure“. 22 ISO/IEC 7498: “Information technology - Open Systems Interconnection - Basic Reference Model“. 23 ISO/IEC 8885: “Information technology - Telecommunication and information exchange bet
43、ween systems - High-level Data Link Control (HDLC) procedures - General purpose XID frame information field content and format“. 24 ISO/IEC 8886: “Information technology - Open Systems Interconnection - Data link service definition“. 25 ISO/TR 8509: “Information processing systems - Open Systems Int
44、erconnection - Service conventions“. 26 ISO/IEC 7809: “Information technology - Telecommunications and information exchange between systems - High-level Data Link Control (HDLC) procedures - Classes of procedures“. 27 ISO/IEC 7776: “Information technology - Telecommunications and information exchang
45、e between systems - High-level data link control procedures - Description of the X.25 LAPB-compatible DTE data link procedures“. 28 3GPP TR 21.905: “Vocabulary for 3GPP Specifications“. 29 3GPP TS 43.051: “GSM/EDGE Radio Access Network (GERAN) overall description; Stage 2“. 30 ITU-T Recommendation X
46、.25: “Interface between Data Terminal Equipment (DTE) and Data Circuit-terminating Equipment (DCE) for terminals operating in the packet mode and connected to public data networks by dedicated circuit“. ETSI ETSI TS 124 022 V14.0.0 (2017-03)83GPP TS 24.022 version 14.0.0 Release 142.1 Definitions an
47、d abbreviations 2.1.1 Abbreviations For the purposes of the present document, the abbreviations given in 3GPP TR 21.905 28 and the following apply: ABM Asynchronous Balanced Mode ADM Asynchronous Disconnected Mode ATM Asynchronous Transfer Mode. C/R Command/Response bit DISC Disconnect frame DM Disc
48、onnected Mode frame DTX Discontinuous Transmission FCS Frame Check Sequence L2R Layer 2 Relay function N(R) Receive sequence numberN(S) Send sequence number NULL Null information frame P/F Poll/Final bitREJ Reject frame REMAP Remap frameRLP Radio Link Protocol RNR Receive Nor ready frame RR Receive
49、Ready frame SABM Set Asynchronous Balanced Mode frame SREJ Selected reject frame STM Synchronous Transfer Mode TEST Test frame UA Unnumbered Acknowledge frame UI Unnumbered Information frameXID Exchange Identification frame 2.1.2 Definitions For the purposes of the present document, the following terms and definitions apply: A/Gb mode: system or a subsystem operates in A/Gb mode if an A or Gb interface is used between the radio access network and the core network. backwards compatibility: R
