ITU-T Q 1231-1999 Introduction to Intelligent Network Capability Set 3 Series Q Switching and Signalling Intelligent Network (Study Group 11)《智能网络能力集3的介绍》.pdf

1、 STD-ITU-T RECMN Q-1231-ENGL 1999 4862593 0685798 T78 INTERNATIONAL TELECOMMUN CATION UN ION ITU-T TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU SERIES Q: SWITCHING AND SIGNALLING Intelligent Network Q.1231 (I 211 999) Introduction to Intelligent Network Capability Set 3 ITU-7 Recommendation (2.1

2、231 (Formerly CCITT Recommendation) STDeITU-T RECMN Q.3233-ENGL L999 4862593 0685799 904 9 ITU-T Q-SERIES RECOMMENDATIONS SWITCHING AND SIGNALLING SIGNALLING IN THE INTERNATIONAL MANUAL SERVICE 0. i 3.3 FUNCTIONS AND INFORMATION FLOWS FOR SERVICES IN THE ISDN Q.60-Q.99 CLAUSES APPLICABLE TO ITU-T ST

3、ANDARD SYSTEMS Q.100-Q.119 SPECIFICATIONS OF SIGNALLING SYSTEMS No. 4 AND No, 5 Q. 1204.249 SPECIFICATIONS OF SIGNALLING SYSTEM No. 6 4.250-4.309 SPECIFICATIONS OF SIGNALLING SYSTEM Ri Q.3 IO-Q.399 SPECIFICATIONS OF SIGNALLING SYSTEM R Q.40O-Q.499 DIGITAL EXCHANGES 4.500-4.599 Q .6 O 0-Q. 6 9 9 INTE

4、RWORKING OF SIGNALLING SYSTEMS Q.700-Q.849 SPECIFICATIONS OF SIGNALLING SYSTEM No. 7 DIGITAL SUBSCRIBER SIGNALLING SYSTEM No. 1 Q.850-Q.999 Q. 1000-Q. 1099 PUBLIC LAND MOBILE NETWORK INTERWORKING WITH SATELLITE MOBILE SYSTEMS Q.1 lOO-Q.1199 INTELLLGENT NETWQRK Q.1200-Q.1699 SIGNALLING REQUIREMENTS A

5、ND PROTOCOLS FOR IMT-2000 Q. i 70O-Q. i 799 BROADBAND ISDN 4.2000-4.2999 INTERNATIONAL AUTOMATIC AND SEMI-AUTOMATIC WORKING Q.4-Q.59 For further details, please refer to the list of ITU-T Recommendations. STD*ITU-T RECMN daL23L-ENGL 1799 48b257L Ob85800 i456 W ITU-T Recommendation Q.1231 Introductio

6、n to Intelligent Network Capability Set 3 Summary Intelligent Network Capability Set 3 (IN CS-3) is the third standardized stage of the Intelligent Network (IN) as an architectural concept for the creation and provision of services, including telecommunication services, service management services a

7、nd service creation services. This Recommendation gives an introduction to IN CS-3. It describes the main characteristics and overall capabilities of IN CS-3 and defines the service aspects, network aspects and functional relationships that form the basis of the IN CS-3 capabilities. This Recommenda

8、tion is the first in the Q.123-series Recommendations devoted to IN CS-3, which builds on the architectural principles of IN as described in the Q.121- and the Q.122-series Recommendations. The IN CS-3 Recommendations form a detailed and stable basis for implementing IN CS-3 telecommunication servic

9、es. They also provide high level guidelines for supporting service management services, service creation services and some partially supported telecommunication services. The IN CS-3 Recommendations are intended to give the same degree of technical information as the IN CS-2 Recommendations (1 997).

10、 Source ITU-T Recommendation Q. 123 1 was prepared by ITU-T Study Group 1 1 ( 1997-2000) and approved under the WTSC Resolution 1 procedure on 3 December 1999. FOREWORD The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications. The IT

11、U Telecommunication 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 Standardiz

12、ation Conference (WTSC), 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 WTSC Resolution 1. in some areas of information te

13、chnology which 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. INTEL

14、LECTUAL PROPERTY RIGHTS IT 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, whe

15、ther asserted 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 c

16、autioned that this may not represent the latest information and are therefore strongly urged to consult the TSB patent database. o ITU 2001 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

17、 microfilm, without permission in writing from the ITU. 1 2 3 4 4.1 4.2 4.3 4.4 4.5 4.6 5 6 6.1 6.2 6.3 7 7.1 7.2 7.3 8 8.1 STD-ITU-T RECMN Q-123b-ENGL 1999 9 4862591 Ob85802 229 CONTENTS Scope Phased standardization . References General description and scope of IN CS-3 . Criteria for IN CS-3 Basic

18、features IN support for mobility . IN support for B-ISDN . IN and IP networks . General aspects . Overview of IN CS-3 Recommendations . Service features and network capabilities Definitions Service Features IN CS-3 . Network Capabilities IN CS-3 Distributed functional model for IN CS-3 Explanation o

19、f diagram IN functional model Definition of functional entities related to IN service execution 7.3.1 CCA function (CCAF) 7.3.2 CC function (CCF) 7.3.3 SS function (SSF) 7.3.4 SC function (SCF) . 7.3.6 SR function (SRF) . 7.3.7 IA function (IAF) 7.3.8 CUS function (CUSF) . 7.3.9 SCUA function (SCUAF

20、) . 7.3.5 SD function (SDF) 7.3.1 O SM function (SMF) . Functional relationships and interfaces Functional relationships and control classes 8.1.1 Bearer Connection Control 8.1.2 Non-IN Call Control 8.1.3 IN Service Control 8.1.4 Service Management Control i 1 1 2 2 2 3 3 3 3 4 14 14 15 15 15 15 15

21、16 16 17 17 18 18 18 21 21 22 22 22 23 STDaITU-T RECMN Q*L231-ENGL 1999 4862593 Ob85803 165 8.1.5 Non-IN Call Unrelated Control . 8.2 Control Architecture Principles 8.2.1 Service invocation and control 8.2.2 End-user interactions . 8.2.3 Feature interactions . 8.2.4 Service management . 8.3 Interne

22、tworking 8.3.1 8.3.2 Internetworking between IN-structured networks . Internetworking with non-IN-structured networks . 8.3.4 Screening . 8.3.3 Security Page 23 23 23 24 24 24 24 25 26 26 27 STD*ITU-T RECMN dmL23L-ENGL L997 4862573 Ob85804 OTL ITU-T Recommendation Q.1231 Introduction to Intelligent

23、Network Capability Set 3 1 Scope Intelligent Network Capability Set 3 (IN CS-3) is the third standardized stage of the Intelligent Network (IN) as an architectural concept for the creation and provision of network services, including telecommunication services, service management services and servic

24、e creation services. This Recommendation gives an introduction to IN CS-3. It describes the main characteristics and overall capabilities of IN CS-3 and defines the service aspects, network aspects, management aspects and functional relationships that form the basis for the IN CS-3 capabilities. 2 P

25、hased standardization The phased approach of IN Capability Sets has been described in ITU-T Recommendation Q.1201. IN CS-3 extends the service aspects, network aspects and management aspects of IN CS-2 as specified in the Q.122-series Recommendations. Definition of IN CS-2 service features may be fo

26、und in Recommendation Q. 122 1. 3 References The following ITU-T Recommendations and other references 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 r

27、eferences are subject to revision; all users of this Recommendation are therefore encouraged to 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. ITU-T

28、Recommendation Q. 121 O (1 995), Q. 1210-series intelligent network Recommendation structure. ITU-T Recommendation Q. 12 1 1 (1 993), Introduction to intelligent network capability set 1. ITU-T Recommendation Q. 12 13 (1 995), Global functional plane for intelligent network CS-1. ITU-T Recommendatio

29、n Q. 121 4 (1 995), Distributed functional plane for intelligent network CS-I. ITU-T Recommendation 4.121 5 (1999, Physical plane for intelligent network CS-I. ITU-T Recommendation Q. 121 8 (1995), Interface Recommendation for intelligent network CS- I. ITU-T Recommendation Q. 1220 (1997), Q. 1220-s

30、eries intelligent network capability Set 2 Recornmendation structure. ITU-T Recommendation Q. 122 1 (1 997), Introduction to intelligent network Capability Set 2. ITU-T Recommendation Q. 1222 (1 997), Service plane for intelligent network Capability Set 2. STD.1TU-T RECNN Q.1231-ENGL 1777 48b259L Ob

31、85805 T36 = ITU-T Recommendation Q. 1223 (1 997), Global functional plane for intelligent network Capability Set 2. ITU-T Recommendation Q. 1224 ( 1997), DistributedJunctional plane for intelligent network Capability Set 2. ITU-T Recommendation Q. 1225 (1997), Physical plane for intelligent network

32、Capability Set 2. ITU-T Recommendation Q. 1228 (1 997), Interface Recommendation for intelligent network Capability Set 2. ITU-T Recommendation Q. 1236 (1 999), Intelligent Network Capability Set 3 - Management information model requirements and methodology. ITU-T Recommendation 4.1290 (1998), Gloss

33、ary of terms used in the definition of intelligent networks. General description and scope of IN CS-3 Criteria for IN CS-3 IN CS-3 defines a set of IN capabilities that meet the following general criteria: 0 IN CS-3 is a subset of the target Intelligent Networks architecture; IN CS-3 is a set of def

34、initions of capabilities that is help to both manufacturers and network IN CS-3 provides network capabilities defined to support the set of IN CS-3 benchmark a IN CS-3 is a superset of IN CS-2, as defined in the IN CS-2 Recommendations; e service providedoperators; and services and service features.

35、 These capabilities can also be used to support other services that may, or may not, be standardized by ITU-T. e The following subclauses outline the work items defined for IN CS-3. Basic features Evolution of IN CS-2 Enhancement of the existing CS-2 features. Multiple points of control Multiple ser

36、vice logic programs are allowed to act on the same (half) call, which implies re-triggering in the same SSF. The involved service logic programs act independently from each other (same behaviour as if the service logic programs are triggered in different SSPs), i.e. each service logic has its own ab

37、stract view of its half call segment. The interaction between the CCF and the several sub-SSFs is handled by an enhanced functional entity located between the CCF and the sub-SSFs (Feature Interaction Manager). Feature interaction For multiple points of control, but also for subsequently invoked fea

38、tureskervices, feature interactions might occur, preferably in a controlled manner. IN-ISDN interworking, including supplementary services Number Portability Enabling Number Portability using IN, impact of Number Portability on IN services. STD-ITU-T RECMN Q.1231-ENGL 1999 48b259L Ob8580b 974 CUSF E

39、nhancements The CUSF-SCF interface is enhanced in order to support user-to-service information (USI) exchange and to allow interworking of an IN service logic programs with a switch based supplementary service, e.g. CCBS. In addition, location of the CUSF at the transit level is supported. IN suppor

40、t for mobility IN support for enhanced services in narrow-band mobile networks. IN support for enhanced services in broadband mobile networks, with the limitations as set in the Broadband section. IN support for enhanced services for UPT users in narrow-band wireline and wireless networks. IN suppor

41、t for enhanced services for UPT users in broadband wireline or wireless networks, with the limitation as set in the Broadband section. IN support for B-ISDN IN CS-3 provides initial requirements and support for Broadband ISDN. Given the short time-frame available for IN CS-3, no significant changes

42、on the IN call models have been made. This implies that only a limited set of B-ISDN network capabilities are supported. Within this constraint, the following benchmark services and service features for Broadband are supported: 1) Broadband (BB) conversational Bidirectional communication with real-t

43、ime end-to-end information transfer from user to user or between user and host (e.g. data processing). The flow of the user information may be bidirectional symmetric, bidirectional asymmetric, or unidirectional. Examples of Broadband Video Conference Service, Video Surveillance, Video Telephony: on

44、ly point-to-point connections are supported (Connection Type 1 ). 2) Broadband retrieval Provides the user with the means to retrieve information stored in information centres provided for public use. An example is Video-on-Demand only point-to-point connections are supported (Connection Type 1). 4.

45、5 IN and IP networks Some aspects of interworking between IP network services/applications and Intelligent Network servicedfeatures are addressed in IN CS-3: - IN support for telecommunication services initiated fiom an IP network (with the restriction that the services are not content related). 4.6

46、 General aspects 1 ) Network technology transparency The target IN is considered an overlay service network common to all network technologies. Where possible and appropriate, network technology transparency is strived for. Independent of benchmark services and/or service features, security aspects

47、between users and the network, and between physical entities within the network, are taken into account where appropriate. 2) Security STDDITU-T RECMN mL23L-ENGL 1999 48b259L 0685807800 m 3) Flow control Independent of benchmark services and/or service features, flow control between physical entitie

48、s within the network is taken into account where appropriate. Rec. Q. 123 1 Q. 1236 Q. 1238 4.1222 4.1223 5 Table 1 contains an overview of the Recommendations that are specifically related to IN CS-3. It was decided not to update the Recommendation of the Service Plane, Global Functional Plane and

49、Physical Plane for IN CS-3. Where appropriate, the existing CS-2 Recommendations 4.1222, Q. 1223 and Q. 1225 can be taken as a reference. The contents of IN CS-2 Recommendation Q. 1224 was partitioned into Q. 123 1 (functional architecture aspects) and Q. 1238 (call modelling aspects, SDLs, etc.). Overview of IN CS-3 Recommendations Title Introduction to Intelligent Network Capability Set 3 Intelligent Network Capability Set 3 - Management Information Model Requirements and Methodology Intelligent Network Interface Specifications for Capability Set 3 Service Plane for Intellige