ITU-T Q 3040-2010 Signalling architecture for IPTV control plane (Study Group 11)《网络电视(IPTV)控制平面的信令架构 11号研究组》.pdf

1、 International Telecommunication Union ITU-T Q.3040TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (08/2010) SERIES Q: SWITCHING AND SIGNALLING Signalling requirements and protocols for the NGN Network signalling and control functional architecture Signalling architecture for IPTV control plane Reco

2、mmendation ITU-T Q.3040 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 TO ITU-T STANDARD SYST

3、EMS Q.100Q.119 SPECIFICATIONS OF SIGNALLING SYSTEMS No. 4, 5, 6, R1 AND R2 Q.120Q.499 DIGITAL 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 L

4、AND MOBILE NETWORK Q.1000Q.1099 INTERWORKING WITH SATELLITE MOBILE SYSTEMS Q.1100Q.1199 INTELLIGENT 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.

5、2999 SIGNALLING REQUIREMENTS AND PROTOCOLS FOR THE NGN Q.3000Q.3999 General Q.3000Q.3029 Network signalling and control functional architecture Q.3030Q.3099Network data organization within the NGN Q.3100Q.3129 Bearer control signalling Q.3130Q.3179 Signalling and control requirements and protocols t

6、o support attachment in NGN environments Q.3200Q.3249 Resource control protocols Q.3300Q.3369 Service and session control protocols Q.3400Q.3499 Service and session control protocols supplementary services Q.3600Q.3649 NGN applications Q.3700Q.3849 Testing for NGN networks Q.3900Q.3999 For further d

7、etails, please refer to the list of ITU-T Recommendations. Rec. ITU-T Q.3040 (08/2010) i Recommendation ITU-T Q.3040 Signalling architecture for IPTV control plane Summary Recommendation ITU-T Q.3040 describes the overall signalling architecture for IPTV control plane. It identifies the functions, f

8、unctional blocks, physical entities, interfaces, and protocols that will model the control plane for IPTV. History Edition Recommendation Approval Study Group 1.0 ITU-T Q.3040 2010-08-06 11 Keywords Control plane, IPTV, signalling. ii Rec. ITU-T Q.3040 (08/2010) FOREWORD The International Telecommun

9、ication Union (ITU) is the United Nations specialized agency in the field of telecommunications, information and communication technologies (ICTs). The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of ITU. ITU-T is responsible for studying technical, operating and tariff

10、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 years, establishes the topics for study by the ITU-T study groups which, in turn, produce Recommenda

11、tions 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 necessary standards are prepared on a collaborative basis with ISO and IEC. NOTE In this Recommendati

12、on, the expression “Administration“ is used for conciseness to indicate both a telecommunication administration and a recognized operating agency. Compliance with this Recommendation is voluntary. However, the Recommendation may contain certain mandatory provisions (to ensure, e.g., interoperability

13、 or applicability) and compliance with the Recommendation is achieved when all of these mandatory provisions are met. The words “shall“ or some other obligatory language such as “must“ and the negative equivalents are used to express requirements. The use of such words does not suggest that complian

14、ce with the Recommendation is required of any party. INTELLECTUAL PROPERTY 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

15、 applicability of claimed Intellectual Property Rights, whether 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

16、 implement this Recommendation. However, implementers are cautioned that this may not represent the latest information and are therefore strongly urged to consult the TSB patent database at http:/www.itu.int/ITU-T/ipr/. ITU 2010 All rights reserved. No part of this publication may be reproduced, by

17、any means whatsoever, without the prior written permission of ITU. Rec. ITU-T Q.3040 (08/2010) iii CONTENTS Page 1 Scope 1 2 References. 1 3 Definitions 1 4 Abbreviations and acronyms 1 5 Conventions 2 6 Control architecture and functions 2 6.1 Functions 5 6.2 Functional blocks 5 6.3 Reference point

18、s for NGN non-IMS IPTV architecture . 5 6.4 Reference points for NGN IMS IPTV architecture 5 7 Physical entities and interfaces in IPTV architecture . 6 7.1 Mapping functions and functional blocks into physical entities 7 7.2 Mapping reference points to interfaces 8 8 Protocols used for interfaces .

19、 8 8.1 Interfaces in NGN non-IMS IPTV architecture . 8 8.2 Interfaces in NGN IMS IPTV architecture . 9 10 Security considerations . 9 Appendix I Functions and reference points of non-NGN IPTV architecture . 10 I.1 Control architecture and functions . 10 I.2 Reference points . 12 Bibliography. 16 iv

20、Rec. ITU-T Q.3040 (08/2010) Introduction The service control functions include call/session control, resource control, registration, and authentication and authorization functions at the service level for both mediated and non-mediated services. They may also include functions for controlling media

21、resources, i.e., specialized resources and gateways at the service-signalling level. Recommendation ITU-T Q.3040 describes the overall signalling architecture for the IPTV control plane. It identifies the functions, functional blocks, physical entities, interfaces, and protocols that will model the

22、control plane for IPTV. Rec. ITU-T Q.3040 (08/2010) 1 Recommendation ITU-T Q.3040 Signalling architecture for IPTV control plane 1 Scope This Recommendation describes the overall signalling architecture for IPTV control plane. It identifies the functions, functional blocks, physical entities, interf

23、aces, and protocols that will model the control plane for IPTV. The interfaces identified in this Recommendation include: interfaces between the service control entities and the IPTV application entities; interfaces between the service control entities and the control entities of service transport s

24、tratum; interfaces between the service control entities and the content delivery entities; interfaces between the service control entities and the end user. Other interfaces (such as the interfaces between two IPTV application entities, internal interfaces of service transport stratum, etc.) are out

25、side the scope of this Recommendation. Appendix I provides functions and reference architecture of non-NGN IPTV architecture which are extracted from ITU-T Y.1910. This includes the reference points related and unrelated to service control functions, which may be helpful for the readers. 2 Reference

26、s 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 references are subject to revision; users of

27、 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. The reference to a document within this Recommendatio

28、n does not give it, as a stand-alone document, the status of a Recommendation. ITU-T Q.1741.6 Recommendation ITU-T Q.1741.6 (2009), IMT-2000 references to Release 8 of GSM-evolved UMTS core network. ITU-T Y.1910 Recommendation ITU-T Y.1910 (2008), IPTV functional architecture. IETF RFC 2326 IETF RFC

29、 2326 (1998), Real Time Streaming Protocol (RTSP). IETF RFC 2616 IETF RFC 2616 (1999), Hypertext Transfer Protocol HTTP/1.1. IETF RFC 3588 IETF RFC 3588 (2003), Diameter Base Protocol. 3 Definitions None. 4 Abbreviations and acronyms This Recommendation uses the following abbreviations and acronyms:

30、 CD however, IPTV services are not covered by b-ITU-T Q.3402. The relationship is for further study. 8.2.3 Interface Is-c For NGN IMS IPTV architecture, interface Is-c will use SIP as per b-ETSI TS 124 229, as indicated in ITU-T Q.1741.6. 8.2.4 Interface Is-u For NGN IMS IPTV architecture, interface

31、 Is-u will use DIAMETER protocol as per IETF RFC 3588. 8.2.5 Interface Is-t For NGN IMS IPTV architecture, interface Is-t will use DIAMETER protocol as per IETF RFC 3588. NOTE Is-t interface partially relates to Rt interface defined in b-ITU-T Q.3321.1. Because some IPTV services use multicast capab

32、ilities, b-ITU-T Q.3321.1 does not cover the multicast capabilities. The relationship is for further study. 10 Security considerations The signalling architecture for IPTV control plane is required to support security mechanisms of session control, as supported by the protocols identified in clause

33、8. These mechanisms can be applied in both non-IMS and IMS-based IPTV architectures. Other service specific security requirements are out of scope of this Recommendation. 10 Rec. ITU-T Q.3040 (08/2010) Appendix I Functions and reference points of non-NGN IPTV architecture (This appendix does not for

34、m an integral part of this Recommendation) This appendix provides functions and reference architecture for non-NGN IPTV architecture which are extracted from ITU-T Y.1910. This describes all reference points including the reference points related and unrelated to service control functions. I.1 Contr

35、ol architecture and functions This clause describes the signalling and control plane architecture for non-NGN IPTV. Figure I.1 shows non-NGN IPTV architectural approach as per ITU-T Y.1910. 11 Rec. ITU-T Q.3040 (08/2010) Q.3040(10)_FI-1Applicationclient functionsContent preparation functionsApplicat

36、ion functionsEnd-user functionsAuthentication and IP allocation functional blockService user profilefunctional blockContent distribution and location control functionsService control functionsContent delivery functionsContent delivery and storage functionsIPTV terminalfunctionsHome networkfunctionsA

37、ccess network functionsResource control functional blockEdge functions Core transport functionsNetwork functionsMulticasttransport functionsIPTV service controlfunctional blockContent deliveryclient functionsIPTV application functionsSADS functional blockIPTV application functional blockSCP function

38、sLocation control functional blockApplication profilefunctional blockDistribution control functional blockCache/storage functional block Distribution functional blockContent delivery control functional blockError recovery functional block Content processing functional blockUnicast delivery functiona

39、l block Multicast delivery functional blockMulticast control point functional blockMulticast replication functional blockUnicast transport functionsSADS clientfunctional blockIPTV applicationclient functionalblockSCP clientfunctionsControl client functional blockError recoveryclient functionalblockU

40、nicast contentdelivery clientfunctional blockMulticast contentdelivery clientfunctional blockDelivery networkgatewayfunctional blockE0E1T1D1E2E3E4E5E6A1 A2A3A4A5A6M1C1C2C3S1E7H1H2H3R1NOTE This figure is an exact replica of Figure 11-1 of ITU-T Y.1910. Figure I.1 Functions and reference points of non

41、-NGN IPTV architecture 12 Rec. ITU-T Q.3040 (08/2010) I.1.1 Functions Functions identified in Figure I.1 are described in detail in ITU-T Y.1910. I.1.2 Functional blocks Functional blocks identified in Figure I.1 are described in detail in ITU-T Y.1910. I.2 Reference points The following reference p

42、oints are those identified in ITU-T Y.1910. I.2.1 Reference point A1 The A1 reference point is between the IPTV application functional block and the IPTV service control functional block. For non-NGN IPTV architecture, interfaces supporting this reference point will use HTTP as per IETF RFC 2616. I.

43、2.2 Reference point A2 The A2 reference point is between the IPTV application functional block and the content distribution and location control functions (CD Transport of MPEG-2 TS Based DVB Services over IP Based Networks. b-ETSI TS 124 229 ETSI TS 124 229 V8.6.0 (2009), Internet Protocol (IP) mul

44、timedia call control protocol based on Session Initiation Protocol (SIP) and Session Description Protocol (SDP); Stage 3. Printed in Switzerland Geneva, 2010 SERIES OF ITU-T RECOMMENDATIONS Series A Organization of the work of ITU-T Series D General tariff principles Series E Overall network operati

45、on, telephone service, service operation and human factors Series F Non-telephone telecommunication services Series G Transmission systems and media, digital systems and networks Series H Audiovisual and multimedia systems Series I Integrated services digital network Series J Cable networks and tran

46、smission of television, sound programme and other multimedia signals Series K Protection against interference Series L Construction, installation and protection of cables and other elements of outside plant Series M Telecommunication management, including TMN and network maintenance Series N Mainten

47、ance: international sound programme and television transmission circuits Series O Specifications of measuring equipment Series P Terminals and subjective and objective assessment methods Series Q Switching and signalling Series R Telegraph transmission Series S Telegraph services terminal equipment

48、Series T Terminals for telematic services Series U Telegraph switching Series V Data communication over the telephone network Series X Data networks, open system communications and security Series Y Global information infrastructure, Internet protocol aspects and next-generation networks Series Z Languages and general software aspects for telecommunication systems