ITU-T Q 1902 1-2001 Bearer Independent Call Control Protocol (Capability Set 2) Functional Description (Study Group 11)《承载独立呼叫控制协议(CS2) 功能描述》.pdf

1、INTERNATIONAL TELECOMMUNICATION UNION ITU-T TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU Q.1902.1 (07/200 1 ) SERIES Q: SWITCHING AND SIGNALLING Specifications of signalling related to Bearer Independent Call Control (BICC) Bearer Independent Call Control protocol (Capability Set 2): Functional d

2、escription ITU-T Recommendation Q. 1902.1 (Formerly CCITT Recommendation) ITU-T Q-SERIES RECOMMENDATIONS SWITCHING AND SIGNALLING SIGNALLING IN THE INTERNATIONAL MANUAL SERVICE INTERNATIONAL AUTOMATIC AND SEMI-AUTOMATIC WORKING FUNCTIONS AND INFORMATION FLOWS FOR SERVICES IN THE ISDN SPECIFICATIONS

3、OF SIGNALLING SYSTEMS No. 4 AND No. 5 SPECIFICATIONS OF SIGNALLING SYSTEM R1 SPECIFICATIONS OF SIGNALLING SYSTEM R2 DIGITAL EXCHANGES INTERWORKING OF SIGNALLING SYSTEMS SPECIFICATIONS OF SIGNALLING SYSTEM No. 7 43 INTERFACE DIGITAL SUBSCRIBER SIGNALLING SYSTEM No. 1 PUBLIC LAND MOBILE NETWORK INTERW

4、ORKING WITH SATELLITE MOBILE SYSTEMS INTELLIGENT NETWORK CLAUSES APPLICABLE TO ITU-T STANDARD SYSTEMS 1 SPECIFICATIONS OF SIGNALLING SYSTEM NO. 6 SIGNALLING REQUIREMENTS AND PROTOCOLS FOR IMT-2000 Q. 1-4.3 Q.4-Q.59 Q.6O-Q.99 Q. 100-Q. 1 19 Q. 120-Q.249 Q.25O-Q.309 4.3 10-4.399 Q.400-Q.499 Q.50O-Q.59

5、9 Q.6OO-Q.699 Q.70O-Q.799 Q.80O-Q.849 Q.85O-Q.999 Q. 1000-Q. 1099 Q. 1 lOO-Q.1199 Q.120O-Q.1699 Q. 17004.1799 Q.1900-Q.1999 Q.200G.2999 For further details, please refer to the list of ITU-T Recommendations. ITU-T Recommendation Q.1902.1 Bearer Independent Call Control protocol (Capability Set 2): F

6、unctional description Summary This Recommendation provides a functional description of the Bearer Independent Call Control (BICC) protocol for the support of narrowband ISDN services independent of the bearer technology and signalling message transport technology used. Source ITU-T Recommendation Q.

7、1902.1 was prepared by ITU-T Study Group 11 (2001-2004) and approved under the WTSA Resolution 1 procedure on 2 July 2001. ITU-T Q.1902.1(07/2001) i FOREWORD The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications. The ITU Telecommu

8、nication Standardization Sector (ITU-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 Assem

9、bly (WTSA), which meets every four years, 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 whic

10、h fall within ITU-Ts purview, the necessary standards are prepared on a collaborative basis with IS0 and IEC. NOTE In this Recommendation, the expression “Administration“ is used for conciseness to indicate both a telecommunication administration and a recognized operating agency. INTELLECTUAL PROPE

11、RTY RIGHTS ITU draws attention to the possibility that the practice or implementation of this Recommendation 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 asserte

12、d by ITU members or others outside of the Recommendation development process. As of the date of approval of this Recommendation, ITU had not received notice of intellectual property, protected by patents, which may be required to implement this Recommendation. However, implementors are cautioned tha

13、t this may not represent the latest information and are therefore strongly urged to consult the TSB patent database. o ITU 2002 All rights reserved. No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm,

14、without permission in writing from ITU. 11 ITU-T 4.1902.1 (07/2001) CONTENTS 1 2 3 4 5 6 6.1 6.2 6.3 7 7.1 7.2 7.3 7.4 8 8.1 8.2 9 9.1 9.2 Scope . References . Definitions Abbreviations Conventions Architecture Network model . Protocol model Recommendation structure . Introduction to BICC protocol s

15、ignalling procedures . Address signalling . Basic procedures . Signalling methods . Interworking 7.4.1 BICC interworking 7.4.2 Interworking with ISUP . 7.4.3 Interworking with other signalling systems or user parts . Capabilities supported . Internationally applicable class . National use class Futu

16、re enhancements and compatibility procedure Version compatibility . Additional coding guidelines for compatibility of BICC protocol versions . 9.2.1 Messages 9.2.2 Parameters . Forward and backward compatibility for the BICC APM user application . 9.3 Appendix I -Guidelines for use of instruction in

17、dicators I . 1 Introduction . 1.2 Priority of execution . 1.3 Notification . 1.4 Considerations 1.4.1 Discarding unrecognized messages . 1.4.2 Essential services . ITU-T Q.1902.1(07/2001) Page 1 2 5 7 9 9 9 11 11 12 12 12 12 12 12 12 13 13 16 16 16 17 17 17 18 19 19 19 19 19 20 20 20 . 111 iv Page 1

18、.4.3 Non-essential services . 20 1.4.4 Broadband/narrow-band interworking 20 1.4.5 Pass on 20 . ITU-T Q.1902.1(07/2001) ITU-T Recommendation Q.1902.1 j eGr control signalling 4 i Bearer Independent Call Control protocol (Capability Set 2): Functional description r i BIWF i Bearer Control Signalling

19、BCF 4 b j 1 Scope This Recommendation provides a functional description of the Bearer Independent Call Control (BICC) protocol. The BICC protocol provides the signalling functions required to support narrowband ISDN services independent of the bearer technology and signalling transport technology us

20、ed. The BICC protocol uses the Signalling Transport Converter (STC) layer for signalling message transport. The Generic Signalling Transport Service is described in ITU-T Q.2150.0 31. The STCs are defined in other Recommendations in the Q.2150.x family of Recommendations. Several arrangements are po

21、ssible for nodes that support BICC signalling. These nodes may have an associated Bearer Control Function (BCF) in which case they are referred to as Serving Nodes (SN). A node without an associated BCF is referred to as Call Mediation Node (CMN). Between Serving Nodes the control of bearers is prov

22、ided by other protocols - not specified by this Recommendation. In a Serving Node (SN), the Call Service Function and the Bearer Control Function (BCF) entities may be physically separated. The Call Bearer Control (CBC) signalling is used between these two entities in case of physical separation. Th

23、e CBC protocol is specified in ITU-T Q.1950 61. Bearer control signalling can be deployed over a separate signalling transport or the Bearer Control Protocol (BCP) can be tunnelled over the “horizontal“ BICC protocol between peer CSFs and the “vertical“ CBC interface between a CSF and a BCF. The Bea

24、rer Control Tunnelling Protocol is specified in ITU-T Q. 1990 62. Both SNs and CMNs are modelled using the “Half Call“ modelling technique. Every call processing scenario is thus divided between an incoming and an outgoing signalling procedure. In the scope of this Recommendation at least one of the

25、se procedures is the BICC procedure (see Figures 1 and 2). f- SERVING NODE (SN) *.i C I , )Il : II procedures procedures ,. ,. a. othersignalling i ., i , Incoming outgoing system) :i .I.* / i / SCOPEOFTHIS i RECOMMENDATION j Cal Bearer Control (CBC) Call Control Signalling (BICC protocol or other s

26、ignalling system) _._, Figure llQ.1902.1- Scope of this Recommendation in case of an SN ITU-T Q.1902.1(07/2001) 1 / ./ CALL MEDIATION NODE (CMN) ., (BICCprotocol) I 4 Cai1 Service r I (BICCprotocol) ,. Function (CSF) , Incoming Outgoing i: procedures procedures ,. !: b ,. / i /i f 7 Bearer Control S

27、ignalling 4 BCF 4 Bearer Control Signalling b Bearer T11 1 1184O-l Figure 2/Q.1902.1- Scope of this Recommendation in case of a CMN This Recommendation is one of the set of Recommendations that describe the Bearer Independent Call Control protocol. Other Recommendations in this group include: a ITU-

28、T Q.1902.2 (2001) that describes BICC CS-2 general functions of messages and parameters; a a a ITU-T Q.1902.3 (2001) that describes BICC CS-2 formats and codes; ITU-T Q. 1902.4 (2001) that describes BICC CS-2 basic call procedures; ITU-T Q. 1902.5 (2001) that describes extensions to the Application

29、Transport Mechanism in the context of the Bearer Independent Call Control; transport of the bearer related information for the BICC protocol. a ITU-T Q.765.5 (2000) and its Amendment 1 that specifies the APM-user to support the Interworking between BICC and other signalling systems is described in t

30、he 4.1912 series of Recommendations. Generic signalling procedures and support of ISDN User Part supplementary services by the BICC protocol are described in ITU-T Q. 1902.6 181. The Bearer Independent Call Control protocol is suitable for both international and national applications. Therefore codi

31、ng space has been reserved in order to allow national Administrations and recognized operating agencies to introduce network specific signalling messages and elements of information within the internationally standardized protocol structure. 2 References The following -T Recommendations and other re

32、ferences contain provisions which, through reference in this text, constitute provisions of this Recommendation. At the time of publication, the editions indicated were valid. All Recommendations and other references are subject to revisions; users of this Recommendation are therefore encouraged to

33、investigate the possibility of applying the most recent edition of the Recommendations and other references listed below. A list of the currently valid ITU-T Recommendations is regularly published. 2 ITU-T Q.1902.1(07/2001) i11 i21 31 r41 r51 r71 r61 i131 i141 i191 i231 i241 r251 ITU-T E. 164 (1997)

34、, The international public telecommunication numbering plan. ITU-T I. 112 (1993), Vocabulary of terms for ISDNs. ITU-T 1.210 (1993), Principles of telecommunication services supported by an ISDN and the means to describe them. ITU-T Q.850 (1998), Usage of cause and location in the Digital Subscriber

35、 Signalling System No. I and the Signalling System No. 7 ISDN User Part. ITU-T Q.730 (1999), ISDN User Part supplementary services. ITU-T 4.761 (1999), Signalling System No. 7 - ISDN User Part functional description. ITU-T Q.762 (1999), Signalling System No. 7- ISDN User Part general functions of me

36、ssages and signals. ITU-T Q.763 (1999), Signalling System No. 7 - ISDN User Part formats and codes. ITU-T Q.764 (1999), Signalling System No. 7 - ISDN User Part signalling procedures. ITU-T Q.766 (1993), Performance objectives in the integrated services digital network application. ITU-T 4.765 (2000

37、), Signalling System No. 7 - Application transport mechanism. ITU-T Q.769.1 (1999), Signalling System No. 7- ISDN User Part enhancements for the support of number portability. ITU-T Q. 1901 (2000), Bearer Independent call control protocol. ITU-T Q. 1902.2 (2001), Bearer independent Call Control prot

38、ocol (CS-2) and Signalling System No. 7 - ISDN User Part general functions of messages and parameters. ITU-T Q. 1902.3 (2001), Bearer independent call control protocol (CS-2) and signalling system No. 7 - ISDN user part formats and codes. ITU-T Q. 1902.4 (2001), Bearer independent call control proto

39、col (CS-2) basic call procedures. ITU-T Q.1902.5 (2001), Exceptions to the application transport mechanism in the context of bearer independent call control. ITU-T Q.1902.6 (2001), Generic signalling procedures and support of ISDN user part supplementary services with the bearer independent call con

40、trol protocol. ITU-T Q.1912.1 (2001), Intenuorking between signalling system No. 7 ISDN user part and the bearer independent call control protocol. ITU-T 4.701 (1993), Functional description of the message transfer part (MTP) of signalling system No. 7. ITU-T Q.704 (1996), Signalling network functio

41、ns and messages. ITU-T Q.2210 (1996), Message transfer part level 3 functions and messages using the services of ITU-T Recommendation Q.2140. ITU-T Q.2110 (1994), B-ISDN ATM adaptation layer - Service specific connection oriented protocol (SSCOP). ITU-T 4.21 11 (1999), Service specific connection or

42、iented protocol in a multi-link and connectionless environment (SSCOPMCE). ITU-T Q.765.1 (1998), Signalling system No. 7 - Application transport mechanism: Support of VPN applications with PSSI information flows. ITU-T Q.1902.1(07/2001) 3 i261 r271 i331 i341 i351 r361 i391 401 i411 i421 431 i441 i45

43、1 i461 i481 i471 i491 i501 i511 i521 i531 ITU-T Q.765.4 (2000), Signalling system No. 7 - Application transport mechanism: Support of the generic addressing and transport protocol. ITU-T Q.765.5 (2000), Signalling System No. 7 - Application transport mechanism: Bearer Independent Call Control (2000)

44、. ITU-T Q.765.5 (2000), Amd. 1 (2001), Bearer Independent Call Control Capability Set 2. ITU-T Q. 12 18 (1 993, Inteqace Recommendation for intelligent network CS-I. ITU-T Q.1228 (1997), Inteqace Recommendation for intelligent network Capability Set 2. ITU-T Q.2 150.0 (2001), Generic signalling tran

45、sport service. ITU-T Q.28 (1988), Determination of the moment of the called subscribers answer in the automatic service. ITU-T E.260 (1 988), Basic technical problems concerning ,the measurement and recording of call durations. ITU-T Q. 101 (1988), Facilities provided in international semi-automatic

46、 working. ITU-T E.4 12 (1 998), Network management controls. ITU-T X.880 ( 1994) I ISO/IEC 137 12- 1 : 1995, Information technology - Remote Operations: Concepts, model and notation. ITU-T X. 121 (2000), International numbering plan for public data networks. ITU-T E.2 12 (1 998), The international i

47、dentification plan for mobile terminals and mobile users. ITU-T Q.703 (1996), Signalling link. ITU-T Q.2763 (1995), Signalling System No. 7 B-ISDN User Part (B-ISUP) - Format and codes. ITU-T E.172 (1992), ISDN routing plan. ITU-T G.711 (1988), Pulse code modulation (PCM) of voicefrequencies. ITU-T

48、Q.12 (1988), Overflow - alternative routing - rerouting - automatic repeat attempt. ITU-T Q. 107 (1988), Standard sending sequence of forward address information. ITU-T Q.115 (1999), Logic for the control of echo control devices. ITU-T Q. 1 18 (1 997), Abnormal conditions - Special release arrangeme

49、nts. ITU-T 4.542 (1993), Digital exchange design objectives - Operations and maintenance. ITU-T Q.706 (1993), Message transfer part signalling peqormance. ITU-T E. 14 1 (1 993), Instructions for operators on the operator assisted international telephone service. ITU-T X.680 ( 1997) I ISO/IEC 8824- 1 : 1998, Informution technology - Abstract Syntax Notation One (ASN.1): Specification of basic notation. ITU-T X.681 (1997) I ISO/IEC 8824-2:1998, Information technology - Abstract Syntax Notation One (ASN.1): Information object specification. ITU-T X.682 (1997) I ISO/I