1、 ETSI TS 100 938 V8.4.0 (2009-01)Technical Specification Digital cellular telecommunications system (Phase 2+);Mobile Station - Base Stations System (MS - BSS)Interface Data Link (DL) Layer Specification (3GPP TS 04.06 version 8.4.0 Release 1999)GLOBAL SYSTEM FOR MOBILE COMMUNICATIONSRETSI ETSI TS 1
2、00 938 V8.4.0 (2009-01) 1 3GPP TS 04.06 version 8.4.0 Release 1999 Reference RTS/TSGG-020406v840 Keywords GSM 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 742 C Association but non lucratif enregist
3、re la Sous-Prfecture de Grasse (06) N 7803/88 Important notice Individual copies of the present document can be downloaded from: http:/www.etsi.org The present document may be made available in more than one electronic version or in print. In any case of existing or perceived difference in contents
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8、its Members and of the 3GPP Organizational Partners. GSM and the GSM logo are Trade Marks registered and owned by the GSM Association. ETSI ETSI TS 100 938 V8.4.0 (2009-01) 2 3GPP TS 04.06 version 8.4.0 Release 1999 Intellectual Property Rights IPRs essential or potentially essential to the present
9、document may have been declared to ETSI. The information 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 respec
10、t of ETSI standards“, which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (http:/webapp.etsi.org/IPR/home.asp). 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 e
11、xistence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) 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 documen
12、t 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 reference between GSM, UMTS, 3GPP and ETSI identities can be found under http:/webapp.e
13、tsi.org/key/queryform.asp. ETSI ETSI TS 100 938 V8.4.0 (2009-01) 3 3GPP TS 04.06 version 8.4.0 Release 1999 Contents Intellectual Property Rights2 Foreword.2 Foreword.7 0 Scope 8 0.1 References 8 0.2 Abbreviations .8 1 General .8 1.1 Options .9 2 Frame structure for peer-to-peer communication.9 2.1
14、General .9 2.2 Frame delimitation and fill bits 12 2.3 Address field 13 2.4 Control field .13 2.5 Length indicator field .13 2.5a Short L2 header type 1 .13 2.6 Information field 13 2.7 Transparency 13 2.8 Format convention13 2.8.1 Numbering convention .13 2.8.2 Order of bit transmission 13 2.8.3 Fi
15、eld mapping convention 14 3 Elements of procedures and formats of fields for Data Link Layer peer-to-peer communication.14 3.1 General .14 3.2 Address field format.14 3.3 Address field variables .15 3.3.1 Address field extension bit (EA).15 3.3.2 Command/response field bit (C/R) .15 3.3.3 Service ac
16、cess point identifier (SAPI) 15 3.4 Control field formats 15 3.4.1 Information transfer format - I16 3.4.2 Supervisory format - S16 3.4.3 Unnumbered format - U16 3.4a Short L2 header type 1 .16 3.5 Control field parameters and associated state variables .16 3.5.1 Poll/Final bit .17 3.5.2 Multiple fr
17、ame operation - variables and sequence numbers17 3.5.2.1 Modulus 17 3.5.2.2 Send state variable V(S)17 3.5.2.3 Acknowledge state variable V(A) .17 3.5.2.4 Send sequence number N(S) .17 3.5.2.5 Receive state variable V(R).18 3.5.2.6 Receive sequence number N(R)18 3.5.2.7 Other parameters and variable
18、s.18 3.5.3 Unacknowledged operation variables and parameters18 3.6 Length indicator field format18 3.7 Length indicator field variables18 3.7.1 Length indicator field extension bit (EL)18 3.7.2 More data bit (M)19 3.7.3 Length indicator (L)19 3.8 Commands and responses 19 3.8.1 Information (I) comma
19、nds 20 3.8.2 Set asynchronous balanced mode (SABM) command20 3.8.3 Disconnect (DISC) command.21 ETSI ETSI TS 100 938 V8.4.0 (2009-01) 4 3GPP TS 04.06 version 8.4.0 Release 1999 3.8.4 Unnumbered information (UI) command .21 3.8.5 Receive ready (RR) command/response .21 3.8.6 Reject (REJ) command/resp
20、onse 21 3.8.7 Receive not ready (RNR) command/response 22 3.8.8 Unnumbered acknowledgement (UA) response .22 3.8.9 Disconnected mode (DM) response22 4 Elements for layer-to-layer communication.22 4.1 Definition of primitives and parameters.22 4.1.1 Generic names 22 4.1.1.1 DL-ESTABLISH 23 4.1.1.2 DL
21、-RELEASE 23 4.1.1.3 DL-DATA.23 4.1.1.4 DL-UNIT DATA 23 4.1.1.5 DL-SUSPEND 23 4.1.1.6 DL-RESUME23 4.1.1.7 DL-RECONNECT 23 4.1.1.8 DL-RANDOM ACCESS 23 4.1.1.9 MDL-RELEASE.23 4.1.1.10 MDL-ERROR .23 4.1.1.11 PH-DATA .24 4.1.1.12 PH-RANDOM ACCESS 24 4.1.1.13 PH-CONNECT .24 4.1.1.14 PH-READY-TO-SEND 24 4.
22、1.1.15 PH-EMPTY-FRAME24 4.1.2 Primitives types 24 4.1.2.1 REQUEST.24 4.1.2.2 INDICATION .24 4.1.2.3 RESPONSE.24 4.1.2.4 CONFIRM 25 4.1.3 Parameter definition25 4.1.3.1 Message unit .25 4.1.3.2 Channel type .25 4.1.3.3 Service Access Point.26 4.1.3.4 Release mode 26 4.1.3.5 Error cause 26 4.1.3.6 Est
23、ablish mode 26 4.1.3.7 L2 header type.26 4.1.3.8 Priority 27 4.2 Primitive procedures.30 5 Definition of the peer-to-peer protocol LAPDm31 5.1 General .31 5.2 General Protocol Procedures 32 5.2.1 Unacknowledged information transfer32 5.2.2 Acknowledged multiple frame information transfer.32 5.3 Proc
24、edures for unacknowledged information transfer32 5.3.1 General32 5.3.2 Transmission of unacknowledged information.32 5.3.3 Receipt of unacknowledged information 32 5.4 Procedures for establishment and release of multiple frame operation 33 5.4.1 Establishment of multiple frame operation.33 5.4.1.1 G
25、eneral33 5.4.1.2 Normal establishment procedures .33 5.4.1.3 Procedure on expiry of timer T200: Normal establishment 34 5.4.1.4 Contention resolution establishment procedure 34 5.4.1.5 Procedure on expiry of timer T200: contention resolution (MS only) 36 5.4.2 Information transfer 36 5.4.2.1 General
26、 requirements 36 5.4.2.2 Error conditions.36 5.4.2.3 Fill frames .37 5.4.3 Suspension and resumption of multiple frame operation38 ETSI ETSI TS 100 938 V8.4.0 (2009-01) 5 3GPP TS 04.06 version 8.4.0 Release 1999 5.4.3.1 General38 5.4.3.2 Suspension 38 5.4.3.3 Resumption .39 5.4.3.3.1 Procedure after
27、 channel change.39 5.4.3.3.2 Procedure after returning to the old channel (MS only) 39 5.4.4 Termination of multiple frame operation40 5.4.4.1 General40 5.4.4.2 Normal release procedure .40 5.4.4.3 Procedure on expiry of timer T200 for normal release .40 5.4.4.4 Local end release procedure41 5.4.5 I
28、dle state41 5.4.6 Collision of unnumbered commands and responses .41 5.4.6.1 Identical transmitted and received commands 41 5.4.6.2 Different transmitted and received commands42 5.4.6.3 Unsolicited DM response and SABM or DISC command42 5.5 Procedures for information transfer in multiple frame opera
29、tion .42 5.5.1 Transmitting I frames42 5.5.2 Receiving I frames43 5.5.2.1 P bit of the received I frame set to “1“ 43 5.5.2.2 P bit of the received I frame set to “0“ 43 5.5.3 Receiving acknowledgement 44 5.5.3.1 On receipt of a valid I frame .44 5.5.3.2 Receiving supervisory command frames with the
30、 P bit set to “1“ 44 5.5.4 Receiving REJ frames.44 5.5.4.1 Receipt of a valid REJ frame.44 5.5.4.2 Transmitting frames 45 5.5.5 Receiving RNR frame.45 5.5.6 Data link layer own receiver busy condition.46 5.5.7 Waiting acknowledgement .47 5.5.8 Preemption48 5.5.8.1 Sender Requirements 48 5.5.8.2 Rece
31、iver Requirements .48 5.6 Abnormal release and re-establishment of multiple frame operation.48 5.6.1 Criteria for re-establishment .48 5.6.2 Criteria for abnormal release 48 5.6.3 Procedures for re-establishment49 5.6.4 Procedures for abnormal release.49 5.7 Exception condition reporting and recover
32、y for multiple frame operation 49 5.7.1 N(S) sequence error 49 5.7.2 Timer recovery50 5.7.3 Invalid frame condition.50 5.7.4 N(R) sequence error50 5.8 List of system parameters.50 5.8.1 Timer T200 .51 5.8.1.1 For SAPI=0 and SAPI=3.51 5.8.1.2 For SAPIs other than 0 or 3.51 5.8.2 Maximum number of ret
33、ransmissions (N200) 51 5.8.2.1 For SAPI=0 and 3 .51 5.8.2.2 For SAPIs other than 0 or 3.51 5.8.3 Maximum number of octets in an I, UI, SABM and UA frame partially or entirely available for the information field (N201) 51 5.8.4 Maximum number of outstanding I frames (k).52 5.8.5 Maximum number of oct
34、ets in a Layer 3 message .52 5.9 System performance requirements .52 6 Special protocol operation on SAPI=0 and SAPI=3 53 Annex A (normative): Random access procedures .54 A.1 Description of the procedure 54 A.1.1 Procedure in the MS .54 A.1.2 Procedure in the BS 54 A.2 Format 54 ETSI ETSI TS 100 93
35、8 V8.4.0 (2009-01) 6 3GPP TS 04.06 version 8.4.0 Release 1999 Annex G (normative): Handling of frames with parameter errors in the address, control and length indicator fields.55 G.1 General .55 G.2 Parameter errors in the address field 55 G.2.1 Unallocated SAPI .55 G.2.2 Wrong value of the C/R bit.
36、55 G.2.3 EA bit set to “0“55 G.3 Parameter errors in the control field.55 G.3.1 Supervisory frames .55 G.3.2 Unnumbered frames56 G.4 Parameter errors in the length indicator field .56 G.4.1 EL bit error .56 G.4.2 Information frames .56 G.4.3 Supervisory frames .56 G.4.4 DISC and DM frames .56 G.4.5
37、SABM UA and UI frames 57 Annex H (informative): Change History 58 History 59 ETSI ETSI TS 100 938 V8.4.0 (2009-01) 7 3GPP TS 04.06 version 8.4.0 Release 1999 Foreword This Technical Specification has been produced by the 3rdGeneration Partnership Project (3GPP). The present document specifies or ref
38、erences procedures used on the Base Station System (BSS) to Serving GPRS Support Node (SGSN) interface for control of GSM packet data services within the digital cellular telecommunications system (Phase 2+). The contents of the present document are subject to continuing work within the TSG and may
39、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 information; 2 p
40、resented 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 incorporated
41、 in the document. ETSI ETSI TS 100 938 V8.4.0 (2009-01) 8 3GPP TS 04.06 version 8.4.0 Release 1999 0 Scope The present document defines a data link layer protocol to be used for signalling, and possibly also for other applications, on the MS-BS interface. 0.1 References The following documents conta
42、in 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, subsequent revisions do not apply. For a non-specifi
43、c reference, the latest version 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 3GPP TS 01.04: “Abbreviations and acronyms“. 2 3GPP TS 0
44、4.01: “Mobile Station - Base Station System (MS - BSS) interface; General aspects and principles“. 3 3GPP TS 04.03: “Mobile Station - Base Station System (MS - BSS) interface Channel structures and access capabilities“. 4 3GPP TS 04.04: “Layer 1 General requirements“. 5 3GPP TS 04.05: “Data Link (DL
45、) layer General aspects“. 6 3GPP TS 04.07: “Mobile radio interface signalling layer 3; General aspects“. 7 3GPP TS 04.08: “Mobile radio interface layer 3 specification“. 8 3GPP TS 04.10: “Mobile radio interface layer 3 Supplementary services specification; General aspects“. 9 3GPP TS 04.12: “Short M
46、essage Service Cell Broadcast (SMSCB) support on the mobile radio interface“. 10 3GPP TS 05.02: “Multiplexing and multiple access on the radio path“. 11 3GPP TS 08.56: “Base Station Controller - Base Transceiver Station (BSC - BTS) interface; Layer 2 specification“. 12 3GPP TS 08.58: “Base Station C
47、ontroller - Base Transceiver Station (BSC - BTS) interface; Layer 3 specification“. 13 CCITT Recommendation Z.100: “Specification and description language (SDL)“. 0.2 Abbreviations Abbreviations used in the present document are listed in 3GPP TS 01.04. 1 General The present document describes the fr
48、ame structure, elements of procedure, format of fields and procedures for the proper operation of the Link Access Procedure on the Dm channel, LAPDm. ETSI ETSI TS 100 938 V8.4.0 (2009-01) 9 3GPP TS 04.06 version 8.4.0 Release 1999 NOTE 1: The term Dm channel is used for convenience to designate the
49、collection of all the various signalling channels required in the GSM system. See also 3GPP TS 04.03. The concepts, terminology, overview description of LAPDm functions and procedures, and the relationship with other Technical Specifications are described in general terms in 3GPP TS 04.05. The frame formats defined for LAPDm are based on those defined for LAPD. However, there are important differences between LAPDm and LAPD, in particular with regard to frame delimitation methods and transparency mechanisms. These differences are necessary for
