ITU-T SERIES Q SUPP 41-2002 Technical Report TRQ 2003 Roadmap to the BICC protocol Recommendations BICC interworking Recommendations and BICC requirement Supplements (Study Group 1.pdf

1、 INTERNATIONAL TELECOMMUNICATION UNION ITU-T Series QTELECOMMUNICATION STANDARDIZATION SECTOR OF ITU Supplement 41(11/2002) SERIES Q: SWITCHING AND SIGNALLING Technical Report TRQ.2003: Roadmap to the BICC protocol Recommendations, BICC interworking Recommendations, and BICC requirement Supplements

2、ITU-T Q-series Recommendations Supplement 41 ITU-T Q-SERIES RECOMMENDATIONS SWITCHING AND SIGNALLING SIGNALLING IN THE INTERNATIONAL MANUAL SERVICE Q.1Q.3 INTERNATIONAL AUTOMATIC AND SEMI-AUTOMATIC WORKING Q.4Q.59 FUNCTIONS AND INFORMATION FLOWS FOR SERVICES IN THE ISDN Q.60Q.99 CLAUSES APPLICABLE T

3、O ITU-T STANDARD SYSTEMS Q.100Q.119 SPECIFICATIONS OF SIGNALLING SYSTEM No. 4 Q.120Q.139 SPECIFICATIONS OF SIGNALLING SYSTEM No. 5 Q.140Q.199 SPECIFICATIONS OF SIGNALLING SYSTEM No. 6 Q.250Q.309 SPECIFICATIONS OF SIGNALLING SYSTEM R1 Q.310Q.399 SPECIFICATIONS OF SIGNALLING SYSTEM R2 Q.400Q.499 DIGIT

4、AL EXCHANGES Q.500Q.599 INTERWORKING OF SIGNALLING SYSTEMS Q.600Q.699 SPECIFICATIONS OF SIGNALLING SYSTEM No. 7 Q.700Q.799 Q3 INTERFACE Q.800Q.849 DIGITAL SUBSCRIBER SIGNALLING SYSTEM No. 1 Q.850Q.999 PUBLIC LAND MOBILE NETWORK Q.1000Q.1099 INTERWORKING WITH SATELLITE MOBILE SYSTEMS Q.1100Q.1199 INT

5、ELLIGENT NETWORK Q.1200Q.1699 SIGNALLING REQUIREMENTS AND PROTOCOLS FOR IMT-2000 Q.1700Q.1799 SPECIFICATIONS OF SIGNALLING RELATED TO BEARER INDEPENDENT CALL CONTROL (BICC) Q.1900Q.1999 BROADBAND ISDN Q.2000Q.2999 For further details, please refer to the list of ITU-T Recommendations. Q series Suppl

6、ement 41 (11/2002) i Supplement 41 to ITU-T Q-series Recommendations Technical Report TRQ.2003: Roadmap to the BICC protocol Recommendations, BICC interworking Recommendations, and BICC requirement Supplements Summary This Supplement presents an overview of the ITU-T Recommendations and Supplements

7、that have been produced in the context of the Bearer Independent Call Control (BICC) protocol. Included is an index of Recommendations, which provide the detailed protocol descriptions. Source Supplement 41 to ITU-T Q-series Recommendations was prepared by ITU-T Study Group 11 (2001-2004) and approv

8、ed under ITU-T Recommendation A.13 (10/2000) procedure on 22 November 2002. ii Q series Supplement 41 (11/2002) FOREWORD The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications. The ITU Telecommunication Standardization Sector (ITU-

9、T) is a permanent organ of ITU. ITU-T is responsible for studying technical, operating and tariff questions and issuing Recommendations on them with a view to standardizing telecommunications on a worldwide basis. The World Telecommunication Standardization Assembly (WTSA), which meets every four ye

10、ars, establishes the topics for study by the ITU-T study groups which, in turn, produce Recommendations on these topics. The approval of ITU-T Recommendations is covered by the procedure laid down in WTSA Resolution 1. In some areas of information technology which fall within ITU-Ts purview, the nec

11、essary standards are prepared on a collaborative basis with ISO and IEC. NOTE In this publication, the expression “Administration“ is used for conciseness to indicate both a telecommunication administration and a recognized operating agency. INTELLECTUAL PROPERTY RIGHTS ITU draws attention to the po

12、ssibility that the practice or implementation of this publication may involve the use of a claimed Intellectual Property Right. ITU takes no position concerning the evidence, validity or applicability of claimed Intellectual Property Rights, whether asserted by ITU members or others outside of the p

13、ublication development process. As of the date of approval of this publication, ITU had not received notice of intellectual property, protected by patents, which may be required to implement this publication. However, implementors are cautioned that this may not represent the latest information and

14、are therefore strongly urged to consult the TSB patent database. ITU 2003 All rights reserved. No part of this publication may be reproduced, by any means whatsoever, without the prior written permission of ITU. Q series Supplement 41 (11/2002) iii CONTENTS Page 1 Scope 1 2 References. 1 3 Abbreviat

15、ions 1 4 Introduction 2 5 BICC documentation 2 5.1 BICC CS-1 3 5.2 BICC CS-2 4 6 CBC documentation 4 7 Interworking specifications 4 7.1 BICC ISUP interworking 5 7.2 BICC access interworking. 5 7.3 BICC INAP interworking 6 7.4 BICC CBC interworking. 6 8 Bearer networks and tunnelling 6 8.1 Bearer ne

16、tworks 6 8.2 Tunnelling. 8 9 Signalling transport. 8 9.1 BICC CS-1 9 9.2 BICC CS-2 9 Appendix I Bibliography of BICC and BICC- related standards documents. 9 I.1 Protocol. 10 I.2 BICC protocol and N-ISUP 2000 Impact and relationship. 11 I.3 Protocol supplements, implementors guides and roadmaps for

17、BICC 11 I.4 BICC requirements. 11 I.5 Other references 11 Appendix II Abbreviations and terminology used in the BICC documents . 13 Q series Supplement 41 (11/2002) 1 Supplement 41 to ITU-T Q-series Recommendations Technical Report TRQ.2003: Roadmap to the BICC protocol Recommendations, BICC interwo

18、rking Recommendations, and BICC requirement Supplements 1 Scope This Supplement provides a roadmap to the BICC-related protocol Recommendations, interworking Recommendations and requirement Supplements. 2 References No references are included. Note that Appendix I provides a bibliography of BICC and

19、 the BICC-related standards documents. 3 Abbreviations This Supplement uses the following abbreviations: AAL ATM Adaptation Layer AINI ATM Inter-Network Interface APM Application Transport Mechanism (or Message) ASE Application Service Element ATM Asynchronous Transfer Mode BAT Bearer Association Tr

20、ansport BCTP Bearer Control Tunnelling Protocol BICC Bearer Independent Call Control B-ISDN Broadband ISDN B-ISUP Broadband ISDN User Part CBC Call Bearer Control protocol CS Capability Set DSS1 Digital Subscriber System No. 1 (ISDN) DSS2 Digital Subscriber System No. 2 (B-ISDN) GIT Generic Identifi

21、er Transport IETF Internet Engineering Task Force INAP Intelligent Network Application Protocol IP Internet Protocol IPBCP IP Bearer Control Protocol ISDN Integrated Services Digital Network ISUP ISDN User Part MEGACO Media Gateway Control protocol MTP Message Transfer Part 2 Q series Supplement 41

22、(11/2002) MTP3 Message Transfer Part level 3 (Narrowband) MTP3b Message Transfer Part level 3 (Broadband) PNNI Private Network-Network Interface PSTN Public Switched Telephone Network RFC Request For Comment RTP Real time Transport Protocol SCTP Stream Control Transmission Protocol SDP Session Descr

23、iption Protocol SS7 Signalling System No. 7 SSCOP Service Specific Connection Oriented Protocol SSCOPMCE SSCOP in a Multi-link or Connectionless Environment STC Signalling Transport Converter TRQ Technical Report to Q-series Recommendations UNI User Network Interface Note that Appendix II provides a

24、n overview of abbreviations and terminology used in the BICC documents. 4 Introduction Over the last few years, a lot of documentation has been produced on BICC. More than 35 new documents have been produced. These documents in turn are related to many more other standards documents. Because of this

25、, it may be difficult for “newcomers“ to dive into BICC, as they may find it difficult to understand how the various documents relate to each other. This Supplement presents an overview of the BICC documentation. The purpose of this overview is to provide guidance for newcomers into the very modular

26、 BICC documentation. Note that the arrows in the illustrations have various meanings, see Figure 1. Q.SUPP.41_F01“A refers to B“C supersedes D“E are requirements to F“Document ADocument CDocument EDocument BDocument DDocument FFigure 1 Meanings of the arrows 5 BICC documentation Figure 2 illustrates

27、 the BICC CS-1 and CS-2 documentation. BICC CS-1 has been documented mainly as an application (extension) to the existing ISUP codings and procedures. Q series Supplement 41 (11/2002) 3 BICC CS-2 involves a complete re-documentation of ISUP and BICC with ISUP becoming a sub-set of BICC. Further BICC

28、 Capability Sets are expected to be documented in a similar manner as BICC CS-2. Q.SUPP.41_F02BICC CS-1 req.BICC CS-2ISUPBICC CS-2BICC CS-1 based on ISUPBICC CS-2 req.Q.761Funct. Descr.Q.1902.1Funct. Descr.Q.762SpecificationQ.1902.2SpecificationQ.763Formats, codesQ.1902.3Formats, codesQ.764Procedure

29、sQ.1902.4ProceduresQ.765APMQ.1902.5APM exceptionsQ.73.x seriesSuppl. ServQ.1902.6Supp.serv.Q.850Cause codesQ.765.5 Amd.1BAT ASEQ.1902 Amd.Carrier SelectBICCQ.1901BICCQ.765.5BAT ASEQ.1901Impl. guideTRQ.2140BICC req.TRQ.2141.0BICC req.TRQ.2141.1Sign. flowsFigure 2 BICC documentation 5.1 BICC CS-1 The

30、Q.76.x series describes ISUP basic call wherein Q.763 contains the ISUP formats and codes, and Q.764 contains the ISUP procedures. Q.765 is the Application Transport Mechanism (APM) of ISUP. The Q.73.x series describes ISUP generic procedures and the support of ISDN supplementary services. ITU-T Rec

31、. Q.1901 describes the protocol for BICC CS-1. Q.1901 is written as a delta document to Q.761 to Q.764 and Q.765. That is, only the new formats, codes and procedures specific to BICC are described, additional to the ISUP Q.761 to Q.764 and Q.765 documentation. ITU-T Rec. Q.765.5 describes the coding

32、 of the BICC specific parameters transported via APM, the Bearer Association Transport ASE (BAT ASE). TRQ.2140 describes the requirements and the signalling flows of BICC CS-1. 4 Q series Supplement 41 (11/2002) An implementors guide for ITU-T Rec. Q.1901 provides a compilation of reported defects,

33、their resolutions and minor upgrades. 5.2 BICC CS-2 The Q.1902.x series describes BICC CS-2. It supersedes the references to the Q.76.x series as applied in Q.1901 for BICC CS-1. Amendment 1 to ITU-T Rec. Q.765.5 describes additional coding of the BICC specific parameters in the BAT ASE for BICC CS-

34、2. TRQ.2141.0 and TRQ.2141.1 describe the BICC CS-2 requirements and the signalling flows, respectively. 6 CBC documentation Figure 3 illustrates the CBC documentation. The CBC protocol is based on H.248.1/MEGACO. Q.SUPP.41_F03H.248.1/MEGACOCBCTRQ.2500CBC req.Q.1950CBCH.248.1 Ann ABinary codingH.248

35、.1 Ann BText codingH.248.7Gen. announceRFC 2327SDPRFC 3015MEGACOH.248.1H.248.1H.248.1 Ann EBasic packagesFigure 3 CBC documentation H.248.1/MEGACO describes the vertical H.248.1/MEGACO interface. There are two types of coding used: binary and text. The text coding is based on SDP (RFC 2327). Applica

36、tions of H.248.1/MEGACO are described in packages. Note that MEGACO is the IETF equivalent of ITU-T Rec. H.248.1. ITU-T Rec. Q.1950 describes the application of H.248.1/MEGACO for the CBC interface. It contains the following: A description how specific parts of H.248.1/MEGACO should be used for CBC.

37、 New codings for parameters that are not already described in H.248.1/MEGACO. Procedures for the CBC interface. TRQ.2500 are the requirements and signalling flows of the CBC interface. 7 Interworking specifications Figure 4 illustrates the interworking of BICC with other protocols. Q series Suppleme

38、nt 41 (11/2002) 5 Q.SUPP.41_F04ISUPPSTN AccessInterworking specificationsQ.76.x seriesISUPQ.140 to Q.180C5Q.310 to Q.332R1Q.400 to Q.490 R2Q.721 to Q.724 TUPQ.699 ISUP DSS1Q.1901 Ann EBICC ISUPQ.1601ISUP INAPQ.1922.2BICC INAP CS-2Q.1922.4BICC INAP CS-4BICCINAPQ.1228INAP CS-2Q.1248INAP CS-4Q.190.x se

39、riesBICCQ.765.5APM-BICC“Access“toBICC networkH.323DSSH.225 Multimedia call controlH.245 Control protocolQ.931 DSS1Q.2931 DSS2Q.276.x seriesB-ISUPB-ISUP CBCQ.1950CBCH.246 Ann C ISUP H.323Q.1912.2BICC PSTN access (C5, R1, R2, TUP) AAL type 2; Structured AAL 1; IP/RTP. The mapping of BICC parameters, l

40、ike addresses, binding information and cause codes, to the various bearer control protocols is defined in protocol Supplements. Q series Supplement 41 (11/2002) 7 Q.SUPP.41_F05BICCQ.190.x seriesBICCQ.765.5APM-BICCProtocolmappingsupplementsTRQ.3020BICC B-ISUPAf-cs-vmoa-0146.000BICC UNI4.0,PNNI, AINIT

41、RQ.3000BICC DSS2TRQ.3010BICC AAL 2TRQ.3030BICC IPAAL 2 IP/RTPQ.1970IPBCPUNI4.0PNNIStruct. AAL 1ATM ForumQ.1902.4 Annex EStruct. AAL 1Af-sig-0061.000UNI4.0Af-pnni-0055.000PNNI 1.0DSS2Q.276.x seriesB-ISUPB-ISUPQ.2931DSS2Q.2941.3GITQ.2726.4AGIBearertechnologiesAINIAf-cs-0125.000AINIAAL type 1 (ATM) Str

42、uctured AAL 1 AAL type 2 IP/RTPRFC 2327SDPQ.2630.1 &Q.2630.2 AAL 2 sign.Figure 5 Bearer networks 8.1.1 AAL type 1 (ATM) TRQ.3000 describes the mapping between BICC and the DSS2 bearer control protocol (ITU-T Rec. Q.2931). DSS2 ITU-T Rec. Q.2941.3 has been updated in order to carry the BICC binding i

43、nformation. TRQ.3020 describes the mapping between BICC and the B-ISUP bearer control protocol (ITU-T Rec. Q.276.x series). B-ISUP ITU-T Rec. Q.2726.4 describes the carrying of Q.2941.3 information, including the BICC binding information. ATM Forum document Af-cs-vmoa-0146.000 describes the mapping

44、between BICC and three ATM Forum protocols based on DSS2: UNI4.0 (Af-sig-0061.000), PNNI 1.0 (Af-pnni-0055.000) and AINI (Af-cs-0125.000) 8.1.2 AAL type 2 TRQ.3010 describes the mapping between BICC and the AAL 2 signalling protocol (ITU-T Recs Q.2630.1 and Q.2630.2). NOTE The functionality in Q.263

45、0.2, Q.1902.1-4, Q.1950 and Amd.1/Q.765.5 does not change the requirements or affect the applicability of TRQ.3010 even though it does not reference these Recommendations. 8.1.3 Structured AAL 1 Annex E/Q.1902.4 describes the procedures for use of structured AAL 1 bearers. 8 Q series Supplement 41 (

46、11/2002) 8.1.4 IP/RTP The IPBCP protocol Q.1970 has been defined as bearer control protocol for an IP-based bearer network. TRQ.3030 describes the mapping between BICC and the IPBCP protocol (ITU-T Rec. Q.1970). 8.2 Tunnelling Figure 6 illustrates the tunnelling mechanism defined to tunnel a bearer

47、control protocol through BICC and CBC. Q.SUPP.41_F06Q.1950CBCCBCQ.190.x seriesBICCBICCQ.765.5APM-BICCQ.1990BCTPQ.1970IPBCPFigure 6 Tunnelling ITU-T Rec. Q.1990 describes the Bearer Control Tunnelling protocol. Q.1990 is carried by both BICC and CBC. So far, the only bearer control protocol tunnelled

48、 by BCTP is the IPBCP (ITU-T Rec. Q.1970) protocol. 9 Signalling transport Figure 7 illustrates the various signalling transports for the BICC protocol. Q series Supplement 41 (11/2002) 9 Q.SUPP.41_F07BICCQ.190.x seriesBICCQ.765.5APM-BICCBICC sign-transport (CS-1)BICC CS-1 req.TRQ.2140BICC req.Q.190

49、1 Ann BSign. transportQ.1901 Ann CMTP3(b)Q.1901 Ann DSSCOP(MCE)BICC sign-transport (CS-2)Q.2150.0Sign. transportQ.2150.1MTP3(b)Q.2150.2SSCOP(MCE)Q.2150.3SCTPTRQ.2600Sign. tr. req.SignallingtransportnetworksQ.704MTP3Q.2210MTP3bQ.2110SSCOPQ.2111SSCOPMCERFC 791IPv4RFC 2460IPv6Figure 7 Signalling transport 9.1 BICC CS-1 Annex B/Q.1901 introduces the concept of a Signalling Transport Converter (STC). Annex