1、 ETSI TS 102 591-1 V1.3.1 (2010-02)Technical Specification Digital Video Broadcasting (DVB);IP Datacast: Content Delivery Protocols (CDP)Implementation Guidelines;Part 1: IP Datacast over DVB-HETSI ETSI TS 102 591-1 V1.3.1 (2010-02)2Reference RTS/JTC-DVB-274-1 Keywords broadcast, DVB, DVB-H ETSI 650
2、 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N 348 623 562 00017 - NAF 742 C Association but non lucratif enregistre la Sous-Prfecture de Grasse (06) N 7803/88 Important notice Individual copies of the present document can be downlo
3、aded from: http:/www.etsi.org The present document may be made available in more than one electronic version or in print. In any case of existing or perceived difference in contents between such versions, the reference version is the Portable Document Format (PDF). In case of dispute, the reference
4、shall be the printing on ETSI printers of the PDF version kept on a specific network drive within ETSI Secretariat. Users of the present document should be aware that the document may be subject to revision or change of status. Information on the current status of this and other ETSI documents is av
5、ailable at http:/portal.etsi.org/tb/status/status.asp If you find errors in the present document, please send your comment to one of the following services: http:/portal.etsi.org/chaircor/ETSI_support.asp Copyright Notification No part may be reproduced except as authorized by written permission. Th
6、e copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2010. European Broadcasting Union 2010. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTM, TIPHONTM, the TIPHON logo and the ETSI logo are Trade Marks of ETSI registered for
7、the benefit of its Members. 3GPPTM is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. LTE is a Trade Mark of ETSI currently being registered for the benefit of its Members and of the 3GPP Organizational Partners. GSM and the GSM logo are Trade
8、Marks registered and owned by the GSM Association. ETSI ETSI TS 102 591-1 V1.3.1 (2010-02)3Contents Intellectual Property Rights 5g3Foreword . 5g3Introduction 5g31 Scope 6g32 References 6g32.1 Normative references . 6g32.2 Informative references 7g33 Definitions and abbreviations . 7g33.1 Definition
9、s 7g33.2 Abbreviations . 9g34 System overview 10g35 Mobile TV and radio services 11g35.1 Setup and operation of a streaming session 11g35.1.1 Session initiation using the ESG . 11g35.1.1.1 Initiation of an audiovisual session . 11g35.1.1.1.1 Streaming session parameters 11g35.1.1.1.2 Media codec inf
10、ormation . 13g35.1.1.1.3 Timing parameters . 13g35.1.1.2 Initiation of multi-lingual sessions 13g35.1.2 Dynamic session update 15g35.1.2.1 Timing synchronization 16g35.1.2.2 Detection of dynamic session update events . 17g35.1.2.3 Media player behaviour . 18g35.1.3 Implementation of the hypothetical
11、 buffering model 19g35.1.3.1 Simulation setup 19g35.1.3.2 Simulations and results . 20g35.1.3.3 Analysis of the hypothetical buffering model . 23g35.1.4 Media encoding, transport, and decoding . 24g35.1.5 Inter-terminal synchronization Issues . 25g35.2 Subtitling 26g35.2.1 Signalling of subtitle str
12、eams 26g35.2.2 Subtitle scaling 29g35.3 Dynamic zapping service . 29g35.3.1 Delivery protocol 30g35.3.2 Session description with SDP . 30g35.4 Hybrid Streaming Delivery 31g35.4.1 Introduction. 31g35.4.2 Reference Scenario . 31g35.4.3 Access Switching 31g35.4.3.1 Broadcast to Unicast Switch . 32g35.4
13、.3.2 Unicast to Broadcast Switch . 32g35.4.3.3 Usage of SSRC 32g36 Data download to devices. 33g36.1 Setup and operation of a file delivery session 33g36.1.1 Session initiation using the ESG . 33g36.1.1.1 File delivery session discovery . 33g36.1.1.2 FLUTE session initiation 33g36.1.1.3 Delivered fi
14、le identification 34g36.1.1.4 Determining MIME type of received files 34g36.1.1.5 Timing parameters 35g36.1.2 FLUTE operation 35g36.1.3 Handling time issues in FLUTE . 37g3ETSI ETSI TS 102 591-1 V1.3.1 (2010-02)46.2 Post-Delivery procedures . 38g36.2.1 File repair 38g36.2.1.1 File repair example 38g
15、36.2.1.1.1 Announcement of file repair capability . 38g36.2.1.1.2 Example of an associated delivery procedure configuration file 38g36.2.1.1.3 Recommendations for the file delivery server and the repair server . 39g36.2.1.1.4 Context of file delivery 39g36.2.1.1.5 Detection of file repair need 39g36
16、.2.1.1.6 Initiation of file repair procedure . 39g36.2.1.1.7 Exchanges between receiver and repair service. 40g36.2.1.1.8 Example of receiver behaviour 40g36.2.1.1.9 Use of chunked transfer encoding . 40g36.2.1.1.10 End of file repair procedure . 41g36.2.1.2 Special considerations in case of file ve
17、rsioning . 41g36.2.1.3 Hybrid file repair example 43g36.2.1.3.1 Use cases of file repair 43g36.2.1.3.2 Repair server behaviour . 43g36.2.1.3.3 Receiver behaviour 44g36.2.2 Reception reporting. 45g36.2.2.1 Request for reception reporting . 45g36.2.2.2 Reception report 46g36.2.2.3 Reception report res
18、ponse . 46g36.3 Use and configuration of application layer FEC 46g36.3.1 General 46g36.3.2 Use of MPE-FEC 47g36.3.3 Guidelines for configuration of AL-FEC 49g36.3.3.1 Fixed target delivery time . 49g36.3.3.2 Fixed session bandwidth . 51g36.3.4 Compatibility with non-AL-FEC terminals 52g36.3.4.1 Fixe
19、d target delivery time . 53g36.3.4.2 Fixed session bandwidth . 56g36.3.5 Interleaving of multiple files . 58g36.3.6 Use of sub-blocking feature 59g36.4 Delivery of web pages (webcasting) 60g36.5 FLUTE sessions and memory management . 62g36.5.1 Processing of the FDT 62g36.5.2 Direct download with del
20、ayed FDT 62g36.5.3 Immediate consumption of received files . 63g36.5.4 Delayed consumption of received files . 63g36.5.5 Processing of a new FDT instance 63g36.6 FDT Instance ID wraparound problem . 63g36.7 FLUTE sessions and Caching 63g36.7.1 No-cache . 64g36.7.2 Max-stale 64g36.7.3 Expires 64g36.7
21、.4 No-caching-directive 64g36.7.5 Default caching directives 64g36.7.5.1 Absence of caching directive 64g36.7.5.2 Caching directive at FDT level . 64g36.7.6 Cache Directive example 65g37 General timing issues . 66g3Annex A (normative): AL-FEC Simulation results . 67g3Annex B (informative): Bibliogra
22、phy . 70g3History 71g3ETSI ETSI TS 102 591-1 V1.3.1 (2010-02)5Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-member
23、s, and can be found in ETSI SR 000 314: “Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect of ETSI standards“, which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (http:/webapp.etsi.org/IPR/home.as
24、p). Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become, essential to the pre
25、sent document. Foreword This Technical Specification (TS) has been produced by Joint Technical Committee (JTC) Broadcast of the European Broadcasting Union (EBU), Comit Europen de Normalisation ELECtrotechnique (CENELEC) and the European Telecommunications Standards Institute (ETSI). NOTE: The EBU/E
26、TSI JTC Broadcast was established in 1990 to co-ordinate the drafting of standards in the specific field of broadcasting and related fields. Since 1995 the JTC Broadcast became a tripartite body by including in the Memorandum of Understanding also CENELEC, which is responsible for the standardizatio
27、n of radio and television receivers. The EBU is a professional association of broadcasting organizations whose work includes the co-ordination of its members activities in the technical, legal, programme-making and programme-exchange domains. The EBU has active members in about 60 countries in the E
28、uropean broadcasting area; its headquarters is in Geneva. European Broadcasting Union CH-1218 GRAND SACONNEX (Geneva) Switzerland Tel: +41 22 717 21 11 Fax: +41 22 717 24 81 The Digital Video Broadcasting Project (DVB) is an industry-led consortium of broadcasters, manufacturers, network operators,
29、software developers, regulatory bodies, content owners and others committed to designing global standards for the delivery of digital television and data services. DVB fosters market driven solutions that meet the needs and economic circumstances of broadcast industry stakeholders and consumers. DVB
30、 standards cover all aspects of digital television from transmission through interfacing, conditional access and interactivity for digital video, audio and data. The consortium came together in 1993 to provide global standardisation, interoperability and future proof specifications. The present docu
31、ment is part 1 of a multi-part deliverable covering the IP Datacast Content Delivery Protocol implementation guidelines over DVB-H and DVB-SH as identified below: Part 1: IP Datacast over DVB-H“; Part 2: IP Datacast over DVB-SH“. Introduction IP Datacast over DVB-H is an end-to-end broadcast system
32、for delivery of any types of digital content and services using IP-based mechanisms optimized for devices with limitations on computational resources and battery. An inherent part of the IP Datacast system is that it comprises a unidirectional DVB broadcast path that may be combined with a bi-direct
33、ional mobile/cellular interactivity path. IP Datacast is thus a platform that can be used for enabling the convergence of services from broadcast/media and telecommunications domains (e.g. mobile/cellular). ETSI ETSI TS 102 591-1 V1.3.1 (2010-02)61 Scope The present document gives implementation gui
34、delines on the use of content delivery protocols and different reliability control techniques in IP Datacast over DVB-H system 1 to 6 and i.1 to i.2 for the whole delivery chain from the network to the terminal. The present document intends in particular to guide implementers of basic use cases for
35、IP Datacast over DVB-H to make best use of the specification IP Datacast over DVB-H: Content Delivery Protocols 2. 2 References References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For a specific reference, subsequent revisions d
36、o not apply. Non-specific reference may be made only to a complete document or a part thereof and only in the following cases: - if it is accepted that it will be possible to use all future changes of the referenced document for the purposes of the referring document; - for informative references. R
37、eferenced documents which are not found to be publicly available in the expected location might be found at http:/docbox.etsi.org/Reference. NOTE: While any hyperlinks included in this clause were valid at the time of publication ETSI cannot guarantee their long term validity. 2.1 Normative referenc
38、es The following referenced documents are indispensable for the application of the present document. For dated references, only the edition cited applies. For non-specific references, the latest edition of the referenced document (including any amendments) applies. 1 ETSI TS 102 468: “Digital Video
39、Broadcasting (DVB); IP Datacast over DVB-H: Set of Specifications for Phase 1“. 2 ETSI TS 102 472: “Digital Video Broadcasting (DVB); IP Datacast over DVB-H: Content Delivery Protocols“. 3 ETSI TS 102 471: “Digital Video Broadcasting (DVB); IP Datacast over DVB-H: Electronic Service Guide (ESG)“. 4
40、ETSI TS 102 474: “ Digital Video Broadcasting (DVB); IP Datacast over DVB-H: Service Purchase and Protection“. 5 ETSI TS 102 470-1: “Digital Video Broadcasting (DVB); IP Datacast: Program Specific Information (PSI)/Service Information (SI); Part 1: IP Datacast over DVB-H“. 6 ETSI TS 102 005: “Digita
41、l Video Broadcasting (DVB); Specification for the use of Video and Audio Coding in DVB services delivered directly over IP protocols“. 7 IETF RFC 2327: “SDP: Session Description Protocol“. 8 IETF RFC 3066: “Tags for the Identification of Languages“. 9 ETSI EN 300 468: “Digital Video Broadcasting (DV
42、B); Specification for Service Information (SI) in DVB systems“. ETSI ETSI TS 102 591-1 V1.3.1 (2010-02)710 IETF RFC 2616: “Hypertext Transfer Protocol - HTTP/1.1“. 11 IETF RFC 3926: “FLUTE - File Delivery over Unidirectional Transport“. 12 IETF RFC 3451: “Layered Coding Transport (LCT) Building Bloc
43、k“. 13 Void. 14 IETF RFC 3984: “RTP Payload Format for H.264 Video“. 15 IETF RFC 4425: “RTP Payload Format for Video Codec 1 (VC-1)“. 16 IETF RFC 3640: “RTP Payload Format for Transport of MPEG-4 Elementary Streams“. 17 IETF RFC 4352: “RTP Payload Format for the Extended Adaptive Multi-Rate Wideband
44、 (AMR-WB+) Audio Codec“. 18 Void. 19 IANA: “MIME Media Types“. NOTE: See at http:/www.iana.org/assignments/media-types. 2.2 Informative references The following referenced documents are not essential to the use of the present document but they assist the user with regard to a particular subject area
45、. For non-specific references, the latest version of the referenced document (including any amendments) applies. i.1 ETSI TR 102 473: “ Digital Video Broadcasting (DVB); IP Datacast over DVB-H: Use Cases and Services“. i.2 ETSI TR 102 469: “ Digital Video Broadcasting (DVB); IP Datacast over DVB-H:
46、Architecture“. i.3 ETSI TS 102 592-1: “Digital Video Broadcasting (DVB); IPDC over DVB-H: Electronic Service Guide (ESG) Implementation Guidelines“. i.4 ETSI TR 102 377: “Digital Video Broadcasting (DVB); DVB-H Implementation guidelines“. i.5 Void. i.6 ETSI TS 126 234: “Universal Mobile Telecommunic
47、ations System (UMTS); LTE; Transparent end-to-end Packet-switched Streaming Service (PSS); Protocols and codecs (3GPP TS 26.234 Release 8)“. 3 Definitions and abbreviations 3.1 Definitions For the purposes of the present document, the following terms and definitions apply: associated delivery proced
48、ures: set of procedures for file repair and reception reporting which are associated to a file delivery session or a streaming session base FLUTE channel: first channel signalled in the session description file of file delivery sessions blocking algorithm: algorithm to chop a file into source blocks
49、 and encoding symbols for transport over FLUTE data download: process of transmitting files from the head-end to the terminals by means of file delivery session DVB-H: transmission system targeted to provide IP-based services to handheld terminals over terrestrial radio channels, as defined in “Transmission System for Handheld Terminals (DVB-H)“ ETSI ETSI TS 102 591-1 V1.3.1 (2010-02)8elementary stream: stream of transport packets within a transport stream sharing a common Packet IDentifier (PID) NOTE: The
