1、 International Telecommunication Union ITU-T J.700TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (12/2009) SERIES J: CABLE NETWORKS AND TRANSMISSION OF TELEVISION, SOUND PROGRAMME AND OTHER MULTIMEDIA SIGNALS Secondary distribution of IPTV services IPTV service requirements and framework for second
2、ary distribution Recommendation ITU-T J.700 Rec. ITU-T J.700 (12/2009) i Recommendation ITU-T J.700 IPTV service requirements and framework for secondary distribution Summary The telecommunications industry today is pursuing development of a new generation of television services, typically called IP
3、TV, built upon IP networking technology to deliver integrated triple-play voice, data and video services across a converged network infrastructure. The cable industry has a long history of successfully delivering video services over hybrid fibre/coax (HFC) networks while adding support for data and
4、voice through the DOCSIS and IPCablecom architectures. Recommendation ITU-T J.700 describes the use of the IPTV mechanism, and is intended to support IPTV services over existing cable-based secondary distribution networks and/or other networks to enhance the existing television distribution services
5、. This revised Recommendation provides a clearer relationship of the IPTV architecture between this Recommendation and Recommendation ITU-T Y.1910, and the relationship to the service provider interface is newly described. In addition, the latest access network technologies for secondary distributio
6、n such as radio frequency over glass (RFoG), wavelength-multiplexed video transport over optical fibre, and hybrid use of HFC and optical fibre, are mentioned. This revision is also intended to provide a number of editorial corrections. History Edition Recommendation Approval Study Group 1.0 ITU-T J
7、.700 2007-12-14 9 2.0 ITU-T J.700 2009-12-14 9 ii Rec. ITU-T J.700 (12/2009) FOREWORD The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications, information and communication technologies (ICTs). The ITU Telecommunication Standardizat
8、ion 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 Assembly (WTSA), which mee
9、ts 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 which fall within ITU-Ts
10、purview, the necessary standards are prepared on a collaborative basis with ISO and IEC. NOTE In this Recommendation, the expression “Administration“ is used for conciseness to indicate both a telecommunication administration and a recognized operating agency. Compliance with this Recommendation is
11、voluntary. However, the Recommendation may contain certain mandatory provisions (to ensure e.g., interoperability 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“ an
12、d the negative equivalents are used to express requirements. The use of such words does not suggest that compliance 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 inv
13、olve 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 Recommendation development process. As of the date of approval of this Rec
14、ommendation, ITU had not received notice of intellectual property, protected by patents, which may be required to 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
15、at http:/www.itu.int/ITU-T/ipr/. ITU 2010 All rights reserved. No part of this publication may be reproduced, by any means whatsoever, without the prior written permission of ITU. Rec. ITU-T J.700 (12/2009) iii CONTENTS Page 1 Scope 1 2 References. 1 3 Definitions 4 3.1 Terms defined elsewhere 4 3.2
16、 Terms defined in this Recommendation . 4 4 Abbreviations and acronyms 5 5 IPTV reference model, scenarios and requirements . 10 5.1 Scenarios for IPTV services . 10 5.2 Service requirements 13 5.3 Functional requirements . 17 6 Functional architecture . 27 6.1 General architectural requirements . 2
17、7 6.2 Secondary distribution functional architecture . 28 7 Relationship to existing secondary distribution networks 31 7.1 Relationship to hybrid fibre/coax networks . 31 7.2 Relationship to optical fibre-based access network configurations . 43 8 Functional architecture: detailed component descrip
18、tions . 44 8.1 IPTV application functions . 46 8.2 Third party web services and applications . 47 8.3 IPTV service functions . 47 8.4 IPTV content functions . 50 8.5 Network functions 53 8.6 OSS functions . 54 8.7 Customer (IP home network) functions . 55 8.8 Content sources 56 9 Reference points .
19、56 9.1 Reference points definition . 56 9.2 Internetwork operability . 58 Annex A Relationship to NGN . 61 Bibliography. 64 Rec. ITU-T J.700 (12/2009) 1 Recommendation ITU-T J.700 IPTV service requirements and framework for secondary distribution 1 Scope This Recommendation describes the service req
20、uirements and functional framework architecture for support of IPTV services to provide enhanced broadcasting, where broadcast programmes are delivered over existing cable-based secondary distribution networks composed of HFC or FTTx with some enhancements by applications and/or services provided ov
21、er IP-enabled networks. It addresses the service requirements, use cases and functional components required to support these requirements. Where possible, this Recommendation utilizes the material already developed, or under development, in ITU-T Recommendations related to video service delivery ove
22、r secondary networks. This Recommendation describes the use of an IPTV mechanism based on the general ITU-T IPTV functional architecture ITU-T Y.1910. The IPTV applications and services addressed in this Recommendation are intended to be transferred over existing cable-based secondary distribution n
23、etworks and/or other networks to enhance the existing television distribution services. 2 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 editio
24、ns indicated were valid. All Recommendations and other references are subject to revision; 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
25、ITU-T Recommendations is regularly published. The reference to a document within this Recommendation does not give it, as a stand-alone document, the status of a Recommendation. ITU-T H.222.0 Recommendation ITU-T H.222.0 (2000) | ISO/IEC 13818-1:2000, Information technology Generic coding of moving
26、pictures and associated audio information: Systems. ITU-T H.222.0 Amd.3 Recommendation ITU-T H.222.0 Amd.3 (2004) | ISO/IEC 13818-1:2000/Amd3:2004, Transport of AVC video data over ITU-T Rec. H.222.0 | ISO/IEC 13818-1 streams. ITU-T H.262 Recommendation ITU-T H.262 (2000) | ISO/IEC 13818-2:2000, Inf
27、ormation technology Generic coding of moving pictures and associated audio information: Video. ITU-T H.264 Recommendation ITU-T H.264 (2005), Advanced video coding for generic audiovisual services. ITU-T H.770 Recommendation ITU-T H.770 (2009), Mechanisms for service discovery and selection for IPTV
28、 services. ITU-T J.83 Recommendation ITU-T J.83 (1997), Digital multi-programme systems for television, sound and data services for cable distribution. ITU-T J.112 Recommendation ITU-T J.112 (1998), Transmission systems for interactive cable television services. ITU-T J.112 Annex B Recommendation IT
29、U-T J.112 Annex B (2004), Data-over-cable service interface specifications: Radio-frequency interface specification. 2 Rec. ITU-T J.700 (12/2009) ITU-T J.122 Recommendation ITU-T J.122 (2002), Second-generation transmission systems for interactive cable television services IP cable modems. ITU-T J.1
30、28 Recommendation ITU-T J.128 (2005), Set-top gateway specification for transmission systems for interactive cable television services. ITU-T J.179 Recommendation ITU-T J.179 (2005), IPCablecom support for multimedia. ITU-T J.181 Recommendation ITU-T J.181 (2004), Digital program insertion cueing me
31、ssage for cable television systems. ITU-T J.190 Recommendation ITU-T J.190 (2007), Architecture of MediaHomeNet. ITU-T J.200 Recommendation ITU-T J.200 (2001), Worldwide common core Application environment for digital interactive television services. ITU-T J.201 Recommendation ITU-T J.201 (2004), Ha
32、rmonization of declarative content format for interactive TV applications. ITU-T J.202 Recommendation ITU-T J.202 (2003), Harmonization of procedural content formats for interactive TV applications. ITU-T J.203 Recommendation ITU-T J.203 (2006), Common core for digital video recorder platform. ITU-T
33、 J.280 Recommendation ITU-T J.280 (2005), Digital Program Insertion: Splicing application program interface. ITU-T J.282 Recommendation ITU-T J.282 (2006), Architecture of multi-channel video signal distribution over IP-based networks. ITU-T J.290 Recommendation ITU-T J.290 (2006), Next generation s
34、et-top-box core architecture. ITU-T J.291 Recommendation ITU-T J.291 (2006), Next generation set-top-box cable architecture. ITU-T J.292 Recommendation ITU-T J.292 (2006), Next generation set-top-box media-independent architecture. ITU-T M.3060 Recommendation ITU-T M.3060/Y.2401 (2006), Principles f
35、or the Management of the Next Generation Networks. ITU-T M.3400 Recommendation ITU-T M.3400 (2000), TMN management functions. ITU-T Y.1901 Recommendation ITU-T Y.1901 (2009), Requirements for the support of IPTV services. ITU-T Y.1910 Recommendation ITU-T Y.1910 (2008), IPTV functional architecture.
36、 ITU-T Y.2011 Recommendation ITU-T Y.2011 (2004), General principles and general reference model for Next Generation Networks. ITU-T Y.2012 Recommendation ITU-T Y.2012 (2006), Functional requirements and architecture of the NGN release 1. ANSI/SCTE 20 ANSI/SCTE 20 (2004), Method for Carriage of Clos
37、ed Captions and Non-Real Time Sampled Video. ANSI/SCTE 21 ANSI/SCTE 21 (2006), Standard for Carriage of NTSC VBI data in Cable Digital Transport Streams. ANSI/SCTE 26 ANSI/SCTE 26 (2004), Home Digital Network Interface Specification with Copy Protection. Rec. ITU-T J.700 (12/2009) 3 ANSI/SCTE 40 ANS
38、I/SCTE 40 (2004), Digital Cable Network Interface Standard. ANSI/SCTE 43 ANSI/SCTE 43 (2005), Digital Video Systems Characteristics Standard for Cable Television. ANSI/SCTE 65 ANSI/SCTE 65 (2002), Service Information Delivered Out-of-Band for Digital Cable Television. ANSI/SCTE 127 ANSI/SCTE 127 (20
39、07), Carriage of Vertical Blanking Interval (VBI) Data in North American Digital Television Bitstreams. ANSI/SCTE 128 ANSI/SCTE 128 (2007), AVC Video Systems and Transport Constraints for Cable Television. ARIB STD-B10 ARIB STD-B10 V4.4 (2007), Service Information for Digital Broadcasting System. AR
40、IB STD-B32 ARIB STD-B32 V2.1 (2007), Video Coding, Audio Coding, and Multiplexing Specifications for Digital Broadcasting. ATSC A/65C ATSC A/65C (2006), ATSC Standard: Program and System Information Protocol for Terrestrial Broadcast and Cable (Revision C) with Amendment No. 1. CEA-608-C CEA-608-C (
41、2005), Line 21 Data Services. CEA-708-C CEA-708-C (2006), Digital Television (DTV) Closed Captioning. ETSI EN 300 468 ETSI EN 300 468 V1.7.1 (2006), Digital Video Broadcasting (DVB); Specification for Service Information (SI) in DVB systems. ETSI EN 301 775 ETSI EN 301 775 V1.2.1 (2003), Digital Vid
42、eo Broadcasting (DVB); Specification for the carriage of Vertical Blanking Information (VBI) data in DVB bitstreams. ETSI TS 101 154 ETSI TS 101 154 v1.7.1 (2005), Digital Video Broadcasting (DVB); Implementation guidelines for the use of Video and Audio Coding in Broadcasting Applications based on
43、the MPEG-2 Transport Stream. ETSI TS 102 034 ETSI TS 102 034 v1.3.1 (2007), Digital Video Broadcasting (DVB); Transport of MPEG-2 TS Based DVB Services over IP Based Networks. ETSI TS 102 543 ETSI TS 102 543 v1.1.1 (2008), Digital Video Broadcasting (DVB); Globally Executable MHP (GEM) Specification
44、 1.2. IETF RFC 1350 IETF RFC 1350 (1992), The TFTP Protocol (Revision 2). IETF RFC 2131 IETF RFC 2131 (1997), Dynamic Host Configuration Protocol. IETF RFC 2132 IETF RFC 2132 (1997), DHCP Options and BOOTP Vendor Extensions. IETF RFC 2250 IETF RFC 2250 (1998), RTP Payload Format for MPEG1/MPEG2 Vide
45、o. IETF RFC 2326 IETF RFC 2326 (1998), Real Time Streaming Protocol (RTSP). IETF RFC 3550 IETF RFC 3550 (2003), RTP: A Transport Protocol for Real-Time Application. IETF RFC 3551 IETF RFC 3551 (2003), RTP Profile for Audio and Video Conferences with Minimal Control. IETF RFC 3640 IETF RFC 3640 (2003
46、), RTP Payload Format for Transport of MPEG-4 Elementary Streams. 4 Rec. ITU-T J.700 (12/2009) IETF RFC 3984 IETF RFC 3984 (2005), RTP Payload Format for H.264 Video. IETF RFC 4184 IETF RFC 4184 (2005), RTP Payload Format for AC-3 Audio. IETF RFC 4425 IETF RFC 4425 (2006), RTP Payload Format for Vid
47、eo Codec 1 (VC-1). IETF RFC 4566 IETF RFC 4566 (2006), SDP: Session Description Protocol. ISO/IEC 13818-7 ISO/IEC 13818-7 (2006), Information technology Generic coding of moving pictures and associated audio information Part 7: Advanced Audio Coding (AAC). SMPTE 421M SMPTE 421M (2006), VC-1 Compress
48、ed Video Bitstream Format and Decoding Process. SMPTE RP 227 SMPTE RP 227 (2006), VC-1 Bitstream Transport Encodings. 3 Definitions 3.1 Terms defined elsewhere None. 3.2 Terms defined in this Recommendation This Recommendation defines the following terms: 3.2.1 client DVR (cDVR): An instance of a DV
49、R where the end-user terminal device contains the recording capability that can be solicited and operated by end users to record and store video, audio and other associated content locally for subsequent playback. 3.2.2 digital video recorder (DVR): A recording capability that can be solicited and operated by end users to record and store video, audio and other associated content for subsequent playback. 3.2.3 distributed DVR (dDVR): Multiple ins
