ETSI TS 148 006-2017 Digital cellular telecommunications system (Phase 2+) (GSM) Signalling transport mechanism Specification for the Base Station System - Mobile Services Switchin.pdf

1、 ETSI TS 148 006 V14.0.0 (2017-04) Digital cellular telecommunications system (Phase 2+) (GSM); Signalling transport mechanism Specification for the Base Station System - Mobile Services Switching Centre (BSS - MSC) interface (3GPP TS 48.006 version 14.0.0 Release 14) TECHNICAL SPECIFICATION GLOBAL

2、SYSTEM FOR MOBILE COMMUNICATIONSRETSI ETSI TS 148 006 V14.0.0 (2017-04)13GPP TS 48.006 version 14.0.0 Release 14Reference RTS/TSGR-0648006ve00 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 - N

3、AF 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 of any electron

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9、registered and owned by the GSM Association. ETSI ETSI TS 148 006 V14.0.0 (2017-04)23GPP TS 48.006 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,

10、 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 updates are avail

11、able 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

12、, 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 identities or GSM ide

13、ntities. 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 not“, “should“,

14、 “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 citation. ETSI E

15、TSI TS 148 006 V14.0.0 (2017-04)33GPP TS 48.006 version 14.0.0 Release 14Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 5g31 Scope 6g32 References 6g33 Definitions and abbreviations . 9g33.1 Definitions 9g33.2 Abbreviations . 9g34 Field of application .

16、9g35 Functional content 9g36 Message transfer part (MTP) functions 10g36.1 General . 10g36.2 Level 1 10g36.2.1 E1 link (ITU-T Recommendation Q.702) . 10g36.2.2 T1 link (ANSI Specification T1.111.2) 11g36.3 Level 2 11g36.3.1 E1 link (ITU-T Recommendation Q.703) . 11g36.3.2 T1 link (ANSI Specification

17、 T1.111.3) 12g36.4 Level 3 12g36.4.1 E1 link (ITU-T Recommendation Q.704) . 12g36.4.2 T1 link (ANSI Specification T1.111.4) 16g36.5 Testing and Maintenance 19g36.5.1 E1 link (ITU-T Recommendation Q.707) . 19g36.5.2 T1 link (ANSI Specification T1.111.7) 19g36a Message Transfer Part 3 (MTP3) User Adap

18、tation Layer (M3UA) functions 20g36a.1 Introduction 20g36a.2 Protocol Stack 20g36a.3 Data Link Layer . 21g37 Interface functions 21g38 SCCP functions 21g38.1 Overview 21g38.2 Primitives . 22g38.2.1 E1 link (ITU-T Recommendation Q.711) . 22g38.2.2 T1 link (ANSI SpecificationT1.112.1) . 22g38.3 SCCP m

19、essages 23g38.3.1 E1 link (ITU-T Recommendation Q.712) . 23g38.3.2 T1 link (ANSI Specification T1.112.2) 24g38.4 SCCP formats and codes 25g38.4.1 E1 link (ITU-T Recommendation Q.713) . 25g38.4.2 T1 link (ANSI Specification T1.112.3) 26g38.5 SCCP procedures 26g38.5.1 E1 link (ITU-T Recommendation Q.7

20、14) . 26g38.5.2 T1 link (ANSI Specification T1.112.4) 28g39 Use of the SCCP . 29g39.1 Connection establishment . 29g39.1.1 Establishment procedure in case i) . 31g39.1.2 Establishment procedure in case ii) 31g39.1.3 Establishment procedure in case iii) . 31g39.1.4 Establishment procedure in case iv)

21、 . 32g3ETSI ETSI TS 148 006 V14.0.0 (2017-04)43GPP TS 48.006 version 14.0.0 Release 149.2 Connection release . 32g39.3 Transfer of DTAP and BSSMAP data 32g39.3.1 Distribution function . 32g39.3.1.1 ITU-T Recommendation . 32g39.3.1.2 ANSI Specification . 33g39.3.2 Transfer of DTAP messages . 33g39.3.

22、3 Transfer of BSSMAP messages 34g39.4 Connectionless services 34g39.4.1 Discrimination parameter (ITU-T Recommendation). 34g39.4.2 Discrimination parameter (ANSI Specification) . 35g39.4.3 User Data Field Structure . 35g310 Use of the SCCP for operations and maintenance 35g310.1 Connectionless servi

23、ce . 36g310.2 Connection oriented services 36g310.3 BSS failure . 36g3Annex A (informative): Change History 37g3History 38g3ETSI ETSI TS 148 006 V14.0.0 (2017-04)53GPP TS 48.006 version 14.0.0 Release 14Foreword This Technical Specification has been produced by the 3rdGeneration Partnership Project

24、(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 in version

25、 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, corrections

26、, updates, etc. z the third digit is incremented when editorial only changes have been incorporated in the document. ETSI ETSI TS 148 006 V14.0.0 (2017-04)63GPP TS 48.006 version 14.0.0 Release 141 Scope The present document is split into four parts, clauses 4 to 6 dealing with the MTP, clause 6a de

27、aling with M3UA/SCTP, clause 7 dealing with interface functions towards higher layers and clauses 8 to 10 dealing with the SCCP and its use. The MTP provides a mechanism giving reliable transfer of signalling messages. Clauses 4 to 7 of the present document deal with the subset of the MTP that can b

28、e used between an BSS and an MSC, which is compatible with a full MTP. The M3UA/SCTP provides a mechanism giving reliable transfer of signalling messages over an IP network. The SCCP is used to provide a referencing mechanism to identify a particular transaction relating to for instance a particular

29、 call. Clauses 8 to 10 identify the SCCP subset that should be used between a BSS and an MSC. The SCCP can also be used to enhance the message routing for (for instance) operations and maintenance information. 2 References The following documents contain provisions which, through reference in this t

30、ext, 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 applies. In the

31、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 TR 21.905: “Vocabulary for 3GPP Specifications“. 2 Void. 3 Void. 4 Void. 5 Void. 6 Void. 7 Void. 8

32、Void. 9 Void. 10 Void. 11 Void. 12 Void. 13 Void. 14 Void. 15 Void. 16 Void. 17 Void. 18 Void. ETSI ETSI TS 148 006 V14.0.0 (2017-04)73GPP TS 48.006 version 14.0.0 Release 1419 Void. 20 Void. 21 Void. 22 Void. 23 Void. 24 Void. 25 Void. 26 Void. 27 Void. 28 3GPP TS 44.006: “Mobile Station - Base Sta

33、tion System (MS - BSS) interface Data Link (DL) layer specification“. 29 Void. 30 3GPP TS 44.018: “Mobile radio interface layer 3 specification; Radio Resource Control Protocol“. 31 Void. 32 Void. 33 Void. 34 Void. 35 Void. 36 Void. 37 Void. 38 Void. 39 Void. 40 Void. 41 Void. 42 Void. 43 Void. 44 V

34、oid. 45 Void. 46 3GPP TS 48.008: “Mobile Switching Centre Base Station System (MSC-BSS) interface; Layer 3 specification“. 47 Void. 48 Void. 49 Void. 50 Void. 51 Void. 52 Void. ETSI ETSI TS 148 006 V14.0.0 (2017-04)83GPP TS 48.006 version 14.0.0 Release 1453 Void. 54 Void. 55 Void. 56 Void. 57 Void.

35、 58 ITU-T Recommendation Q.702: “Signalling data link“. 59 ITU-T Recommendation Q.703: “Signalling link“. 60 ITU-T Recommendation Q.704: “Signalling network functions and messages“. 61 ITU-T Recommendation Q.707: “Testing and maintenance“. 62 ITU-T Recommendation Q.711: “Functional description of th

36、e signalling connection control part“. 63 ITU-T Recommendation Q.712: “Definition and function of signalling connection control part messages“. 64 ITU-T Recommendation Q.713: “Signalling connection control part formats and codes“. 65 ITU-T Recommendation Q.714: “Signalling connection control part pr

37、ocedures“. 66 3GPP TS 23.003: “Numbering, addressing and identification“. 67 ANSI T1.110-1999: “Signaling System No.7; General Information“. 68 ANSI T1.111-2000: “Signalling System No. 7; Message Transfer Part“. 69 ANSI T1.112-1996: “Signalling System No. 7; Signalling Connection Control Part Functi

38、onal Description“. 70 TIA/EIA/IS-104-A: “Personal Communications Service Descriptions for 1 800 MHz“. 71 ITU-T Recommendation Q.701: “Functional description of the message transfer part (MTP) of Signalling System No. 7“. 72 IETF RFC 2960(10/2000): “Stream Control Transmission Protocol“. 73 IETF RFC

39、3332(09/2002): “Signalling System 7 (SS7) Message Transfer Part 3 (MTP3) User Adaptation Layer (M3UA)“. 74 IETF STD 51, RFC 1661(07/1994): “The Point-To-Point Protocol (PPP)“. 75 IETF STD 51, RFC 1662(07/1994): “PPP in HDLC-like Framing“. 76 IETF RFC 2507(02/1999): “IP header compression“. 77 IETF R

40、FC 1990(07/1994): “The PPP Multilink Protocol (MP)“. 78 IETF RFC 2686(09/1999): “The Multi-Class Extension to Multi-Link PPP“. 79 IETF RFC 2509(02/1999): “IP Header Compression over PPP“. 80 IETF RFC 2474 (12/1998): “Definition of the Differentiated Services Field (DS Field) in the IPv4 and IPv6 Hea

41、ders“. 81 RFC 3309: “SCTP Checksum Change“. 82 IETF RFC 791 (09/1981): “Internet Protocol“. 83 IETF RFC 2460: “Internet Protocol, Version 6 (Ipv6) Specification“. 84 3GPP TS 29.202: “SS7 Signalling Transport in Core Network; Stage 3“ ETSI ETSI TS 148 006 V14.0.0 (2017-04)93GPP TS 48.006 version 14.0

42、.0 Release 143 Definitions and abbreviations 3.1 Definitions For the purposes of the present document, the following terms and definitions apply: E1: link employs 32 Pulse Code Modulation signals (timeslots) at 64 kbits/s. The 32 timeslots consist of 30 voice (or signalling) channels and 2 common si

43、gnalling channels. The output bit rate is 2 048 Mbits/s. T1: link employs 24 Pulse Code Modulation signals (timeslots) at 64 kbits/s. (T1 interface can alternatively use signalling at 56 kbits/s). The output bit rate is 1 544 Mbits/s. (A frame consists of 193 bits, (8 x 24) + 1, as one bit is used f

44、or synchronization. The frame repeats 8,000 times per second.). 3.2 Abbreviations For the purposes of the present document, the abbreviations given in 3GPP TR 21.905 apply. 4 Field of application a) The present document is applicable to the signalling between radio subsystems (BSS) and mobile switch

45、ing centres (MSCs) in GSM PLMNs. It provides a minimum set of MTP, or in the case of IP-based signalling transport - M3UA and SCTP, requirements that may be implemented at a BSS or MSC, whilst maintaining compatibility with the implementation of a full specification of the MTP (M3UA/SCTP). b) For MT

46、P signalling transport usage, the Technical Specification defines the interface at the 64 kbits/s boundary to the BSS or MSC and applies primarily for digital access arrangements, the use of analogue arrangements isan option for PLMN operator. Also, the Technical Specification defines the interface

47、at the 56 kbits/s boundary to the BSS or MSC for T1 links. c) The security of signalling links is a PLMN operator concern , however it is recommended that in the case where more than one multiplex system is required and security reasons dictate the use of a multiple link linkset, then each signallin

48、g link should be assigned in a different multiplex system. It is however noted that this is of little benefit if diversity of routing of the multiplexes is not used. d) Both associated and quasi-associated modes of signalling between the BSS and the MSC are allowed. In case of quasi-associated mode

49、the STP functionality is provided outside the BSS. Future evolution or economic reasons applicable to the interface may however make the use of STP working at the BSS attractive, in which case some of the simplifications in this paper will not apply. e) A variety of information types may be supported by the signalling system, e.g. relating to circuit switched call control and packet communication.