1、 International Telecommunication Union ITU-T J.704TELECOMMUNICATION 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 Functional requirements of the service provider in
2、terface for television primary and secondary distribution and associated interactive services Recommendation ITU-T J.704 Rec. ITU-T J.704 (12/2009) i Recommendation ITU-T J.704 Functional requirements of the service provider interface for television primary and secondary distribution and associated
3、interactive services Summary To encourage the successive growth of television broadcasting services, it is important to enable third-party operators to provide services by making the best use of television distribution facilities and functionalities. Recommendation ITU-T J.704 defines functional req
4、uirements of the service providers interface for television primary and secondary distribution and associated interactive services for integrated broadband cable and primary distribution television networks. This Recommendation provides interfaces and functionalities to enable third-party service pr
5、oviders to offer television and associated interactive services including RF-based linear TV, video on demand (VoD), cable telephony, and enhanced broadcast services. History Edition Recommendation Approval Study Group 1.0 ITU-T J.704 2009-12-14 9 ii Rec. ITU-T J.704 (12/2009) FOREWORD The Internati
6、onal Telecommunication 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, operat
7、ing 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 years, establishes the topics for study by the ITU-T study groups which, in turn, pro
8、duce 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 necessary standards are prepared on a collaborative basis with ISO and IEC. NOTE In th
9、is Recommendation, 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. int
10、eroperability 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
11、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 involve the use of a claimed Intellectual Property Right. ITU takes no position concerning the evidence
12、, 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 Recommendation, ITU had not received notice of intellectual property, protected by patents, which may b
13、e 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 at http:/www.itu.int/ITU-T/ipr/. ITU 2010 All rights reserved. No part of this publication may be re
14、produced, by any means whatsoever, without the prior written permission of ITU. Rec. ITU-T J.704 (12/2009) iii CONTENTS Page 1 Scope 1 2 References. 1 3 Definitions 1 3.1 Terms defined elsewhere 1 4 Abbreviations and acronyms 2 5 Interface definitions for delivery of television and associated intera
15、ctive services . 2 5.1 Overview of the interfaces for television and associated interactive service delivery . 2 5.2 Interface definitions 3 6 Functional requirements . 5 6.1 Authentication 6 6.2 Service provider management function 6 6.3 User information management function . 6 6.4 Video delivery m
16、anagement function 6 6.5 Access control function 6 6.6 Accounting function . 6 6.7 Content management function 6 6.8 Report function . 7 6.9 Cable telephony support function . 7 6.10 Enhanced service support function . 7 6.11 Routing function for primary distribution 7 6.12 Addressable secondary dis
17、tribution function for targeted content distribution 7 7 Relationship to local application service delivery platform (LASDP) . 8 Appendix I Examples of the SDV for the service providers interface for television service . 9 Bibliography. 11 Rec. ITU-T J.704 (12/2009) 1 Recommendation ITU-T J.704 Func
18、tional requirements of the service provider interface for television primary and secondary distribution and associated interactive services 1 Scope This Recommendation defines functional requirements of the service providers interface for television primary and secondary distribution and associated
19、interactive services for integrated broadband cable and primary distribution television networks. This Recommendation provides interfaces and functionalities to enable third-party service providers to offer television and associated interactive services. The functionalities described in this Recomme
20、ndation are defined according to the requirements of cable television operators. Television and associated interactive services supported in this Recommendation include RF-based linear TV, video on demand (VoD), cable telephony, and enhanced broadcast services. 2 References The following ITU-T Recom
21、mendations 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 this Recommendation are th
22、erefore 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 Recommendation does not give it, as a st
23、and-alone document, the status of a Recommendation. ITU-T J.83 Recommendation ITU-T J.83 (2007), Digital multi-programme systems for television, sound and data services for cable distribution. ITU-T J.98 Recommendation ITU-T J.98 (2003), Metadata requirements for video-on-demand in cable networks. I
24、TU-T J.160 Recommendation ITU-T J.160 (2005), Architectural framework for the delivery of time-critical services over cable television networks using cable modems. ITU-T J.185 Recommendation ITU-T J.185 (2002), Transmission equipment for transferring multi-channel television signals over optical acc
25、ess networks by FM conversion. ITU-T J.186 Recommendation ITU-T J.186 (2008), Transmission equipment for multi-channel television signals over optical access networks by sub-carrier multiplexing (SCM). ITU-T J.360 Recommendation ITU-T J.360 (2006), IPCablecom2 architecture framework. ITU-T J.700 Rec
26、ommendation ITU-T J.700 (2009), IPTV service requirements and framework for secondary distribution. 3 Definitions 3.1 Terms defined elsewhere This Recommendation uses the following terms defined elsewhere: 3.1.1 enhanced broadcasting ITU-T J.700: A system that is capable of delivering broadcast prog
27、rams over existing secondary distribution networks composed of HFC or FTTx with enhancements by applications and/or services transferred over IP-enabled networks. 2 Rec. ITU-T J.704 (12/2009) 3.1.2 Linear TV b-ITU-T Y.1901: A television service in which a continuous stream flows in real time from th
28、e service provider to the terminal device and where the user cannot control the temporal order in which contents are viewed. 4 Abbreviations and acronyms This Recommendation uses the following abbreviations and acronyms: API Application Programming Interface CM Cable Modem CMTS Cable Modem Terminati
29、on System DOCSIS Data Over Cable Service Interface Specification DVR Digital Video Recorder EMTA Embedded Multimedia Terminal Adaptor EPG Electronic Program Guide FEC Forward Error Correction IMS IP Multimedia Subsystem MPEG Moving Picture Experts Group OSS Operations Support System PPV Pay Per View
30、 QoS Quality of Service RST Residential SIP Telephony SCP Service and Content Protection SDP Service Delivery Platform SDV Switched Digital Video VoD Video On Demand VoIP Voice over IP VPN Virtual Private Network 5 Interface definitions for delivery of television and associated interactive services
31、5.1 Overview of the interfaces for television and associated interactive service delivery The service providers interface for television and associated interactive services is an interface that enables outside entities to offer television and associated interactive services. As shown in Figure 1, th
32、is interface enables a number of functions such as video delivery management, user information management, and service accounting. Service providers can use these functions through APIs provided by this interface. Rec. ITU-T J.704 (12/2009) 3 Figure 1 Conceptual diagram of the service providers inte
33、rface for television and associated interactive services 5.2 Interface definitions This clause defines interfaces to provide the supposed services to be enabled. 5.2.1 Content secondary distribution This interface is defined to distribute content to consumers. This is the primary and core service of
34、 this interface, and linear TV and VoD are assumed in this Recommendation. Linear TV is the RF-based digital broadcasting defined in ITU-T J.83, ITU-T J.185, and ITU-T J.186, and VoD is the on-demand video distribution described in ITU-T J.98. 5.2.2 Enhanced broadcasting The service providers interf
35、ace defined in this Recommendation provides enhanced broadcasting, which is defined in ITU-T J.700. ITU-T J.700 defines enhanced broadcasting as follows: delivering enhanced video and other multimedia capabilities to the TV using IP. This scenario is generally considered an enhancement to the existi
36、ng digital television delivery service. The existing video service delivery mechanisms remain intact, but are enhanced to allow for additional service overlays. All of these also may provide an integrated experience with the existing broadcast-based television services. a) IP video features For exam
37、ple, mosaics of video content (e.g., for interactive program guide or Picture in Picture) require multiple-tuner capabilities using traditional delivery mechanisms. IP gives the ability to deliver multiple video streams for various display purposes efficiently. 4 Rec. ITU-T J.704 (12/2009) b) Web-ba
38、sed services Video delivery through standard web-based mechanisms can be used in conjunction with existing digital TV offerings to provide interactivity. For example, enhanced information services related to programming can be displayed through access to web servers over the IP network. c) IP-based
39、enhancements Combining existing broadcast video applications with new interactive IP-based multimedia services. For example, IPCablecom ITU-T J.160 defines a standard architecture for voice over IP (VoIP) and IPCablecom2 ITU T J.360 defines multimedia services for cable networks. Other IMS-based mul
40、timedia services are being defined as well. These new services will be integrated with the existing digital television offerings. 5.2.3 Cable telephony Many cable operators provide cable telephony services with VoIP technology. The interface for cable telephony is defined to provide an end-to-end te
41、lephony service such as b-ITU-T J.460.0 over the IPCablecom architecture ITU-T J.160 and ITU-T J.360 with EMTA. In addition, some telephony-related services would be provided through the TV screen. For example: Caller ID Caller ID is a function to display (or block) a callers phone number. Clause II
42、.6.2 of b-ITU-T J.460.0 describes in more detail Caller ID over cable networks. Presence Presence is a functionality to enable the exchange of dynamic information (e.g., state and availability) of logical entities such as the users and devices. For TV services, users may acquire their friends presen
43、ce through the TV screen. b-ITU-T J.367 describes in more detail presence services over cable networks. Multimedia teleconferencing Multimedia teleconferencing is an advanced function to enable the exchange of information (e.g., visual information) among multiple callers. 5.2.4 Primary distribution
44、This interface is defined to provide delivery of program or content from the originating service provider to those operators that are responsible for the secondary distribution. Primary distribution can be considered as a business-to-business service. Program or content may also contain metadata as
45、well as audio and/or video media. This interface also provides addressable distribution mechanism that can specify or choose the destination operator(s). In this Recommendation, primary distribution is classified in several levels, i.e., national level, regional level, prefecture level and municipal
46、 level. 5.2.5 Public interest services This interface is defined to provide delivery of public interest services directly to the end-users connected to the operator (secondary distribution, or business-to-consumer) and to other operators (primary distribution, or business-to-business) to distribute
47、the services within the specified domain. The public interest services would include, but not limited to, traffic information, flight information, weather information, disaster information such as earthquake, storm, tsunami, and other major accidents. 5.2.6 Portal services This interface is defined
48、to provide portal services that can be accessed from the end-users located in the specified domain. The portal service would include, but not limited to, program guide, content guide, pay per view transaction, subscription handling, electronic-commerce, etc. Rec. ITU-T J.704 (12/2009) 5 5.2.7 Target
49、ed content distribution This interface is defined to provide targeted content distribution services, which will be addressed to specific targets according to a set of delivery plans and/or placement directions. This would be applicable to, but not limited to, targeted advertisement, content recommendation, automatic video recording, etc. This interface also provides several feedbacks such as messages from end-users, application fulfilment summary, service measurement summary, etc. 6 Functional requirements This
