1、 ETSI TS 102 978 V1.1.1 (2008-07)Technical Specification Digital Audio Broadcasting (DAB);IPDC Services;Transport specificationEuropean Broadcasting Union Union Europenne de Radio-Tlvision EBUUER ETSI ETSI TS 102 978 V1.1.1 (2008-07) 2 Reference DTS/JTC-DAB-52 Keywords DAB, data, digital, radio, ser
2、vice ETSI 650 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
3、can be downloaded 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, t
4、he reference 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 do
5、cuments is available 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 p
6、ermission. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2008. European Broadcasting Union 2008. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTM, TIPHONTM, the TIPHON logo and the ETSI logo are Trade Marks of ETSI re
7、gistered for 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. ETSI ETSI TS 102 978 V1.1.1 (2008-07) 3 Contents Intellectual Property Rights4 Foreword.4 1 Scope 5 2 References 5 2.1 Normative references .5 2.
8、2 Informative references6 3 Definitions, symbols and abbreviations .6 3.1 Definitions6 3.2 Symbols7 3.3 Abbreviations .7 4 General concept and structure 8 4.1 DAB IPDC system architecture8 4.2 DAB IPDC protocol stack9 4.3 IPDC data packet transport over DAB .9 4.4 DAB IPDC data transport mechanism10
9、 4.5 Power saving 11 4.6 DAB IPDC service profiles12 5 Data transport in DAB IPDC systems12 5.1 Usage of IPDC architecture12 5.2 IP Transport13 5.3 Transport stream PSI/SI specification 13 5.3.1 Efficient transmission of PSI/SI and SAT sections.13 5.4 IPDC data transport service16 5.4.1 Sub-channel
10、organization .16 5.4.2 Data transport over multiple sub-channels17 5.4.3 TS synchronization .19 5.4.4 Definition of Sub-channel Assignment Table.20 6 User application signalling.22 Annex A (normative): DAB IPDC reference receiver.23 Annex B (normative): DAB IPDC receiver procedures .25 Annex C (info
11、rmative): Discovery of IPDC Services over DAB.26 Annex D (informative): Variable Bit-rate Services .28 History 29 ETSI ETSI TS 102 978 V1.1.1 (2008-07) 4 Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information perta
12、ining to these essential IPRs, if any, is publicly available for ETSI members and non-members, 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 Secreta
13、riat. Latest updates are available on the ETSI Web server (http:/webapp.etsi.org/IPR/home.asp). 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 t
14、he updates on the ETSI Web server) which are, or may be, or may become, essential to the present 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 ELECtrotechniq
15、ue (CENELEC) and the European Telecommunications Standards Institute (ETSI). NOTE: The EBU/ETSI 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
16、in the Memorandum of Understanding also CENELEC, which is responsible for the standardization 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-maki
17、ng and programme-exchange domains. The EBU has active members in about 60 countries in the European 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 Eureka Project 147 was establi
18、shed in 1987, with funding from the European Commission, to develop a system for the broadcasting of audio and data to fixed, portable or mobile receivers. Their work resulted in the publication of European Standard, EN 300 401 7, for DAB (see note) which now has worldwide acceptance. The members of
19、 the Eureka Project 147 are drawn from broadcasting organizations and telecommunication providers together with companies from the professional and consumer electronics industry. NOTE: DAB is a registered trademark owned by one of the Eureka Project 147 partners. ETSI ETSI TS 102 978 V1.1.1 (2008-07
20、) 5 1 Scope The present document specifies the transport of IPDC services using the MSC stream mode of DAB (EN 300 401 7) including additional error protection (TS 102 427 8). IPDC services, e.g. audio and video services, are packetized and synchronized using RTP 15 and appropriate RTP payload forma
21、t specifications. The present document specifies the mechanism for the multiplexing of the multimedia data using MPEG-2 TS 11. For efficiency, some appropriate restrictions to MPEG-2 TS and an efficient transmission method for PSI/SI and SAT sections are specified. The present document also specifie
22、s methods of macro and micro time slicing for power-efficient transmission of IPDC Services in DAB systems. The methods for sub-channel synchronization and data arrangement are specified. 2 References References are either specific (identified by date of publication and/or edition number or version
23、number) or non-specific. For a specific reference, subsequent revisions do 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 fo
24、r the purposes of the referring document; - for informative references. Referenced documents which are not found to be publicly available in the expected location might be found at http:/docbox.etsi.org/Reference. For online referenced documents, information sufficient to identify and locate the sou
25、rce shall be provided. Preferably, the primary source of the referenced document should be cited, in order to ensure traceability. Furthermore, the reference should, as far as possible, remain valid for the expected life of the document. The reference shall include the method of access to the refere
26、nced document and the full network address, with the same punctuation and use of upper case and lower case letters. 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 references The following referenc
27、ed 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 101 756: “Digital Audio Broadcasting (DAB); Regis
28、tered Tables“. 2 ETSI TS 102 470: “Digital Video Broadcasting (DVB); IP Datacast over DVB-H: Program Specific Information (PSI)/Service Information (SI)“. 3 ETSI TS 102 471: “Digital Video Broadcasting (DVB); IP Datacast over DVB-H: Electronic Service Guide (ESG)“. 4 ETSI TS 102 474: “Digital Video
29、Broadcasting (DVB); IP Datacast over DVB-H: Service Purchase and Protection“. 5 ETSI TS 102 472: “Digital Video Broadcasting (DVB); IP Datacast over DVB-H: Content Delivery Protocols“. 6 ETSI TS 102 005: “Digital Video Broadcasting (DVB); Specification for the use of Video and Audio Coding in DVB se
30、rvices delivered directly over IP protocols“. ETSI ETSI TS 102 978 V1.1.1 (2008-07) 6 7 ETSI EN 300 401: “Radio Broadcasting Systems; Digital Audio Broadcasting (DAB) to mobile, portable and fixed receivers“. 8 ETSI TS 102 427: “Digital Audio Broadcasting (DAB); Data Broadcasting - MPEG-2 TS streami
31、ng“. 9 ETSI EN 300 468: “Digital Video Broadcasting (DVB); Specification for Service Information (SI) in DVB systems“. 10 ITU-R Recommendation BT.709: “Parameter values for the HDTV standards for production and international programme exchange“. 11 ISO/IEC 13818-1: “Information technology - Generic
32、coding of moving pictures and associated audio information - Part 1: Systems“. 12 ITU-T Recommendation H.264: “Advanced video coding for generic audiovisual services “. 13 ISO/IEC 14496-10 (2005): “Information Technology - Coding of audio-visual objects - Part 10: Advanced Video Coding“. 14 ISO/IEC
33、14496-3: “Information technology - Coding of audio-visual objects - Part 3: Audio“. 15 IETF RFC 3550: “RTP, A Transport Protocol for Real Time Applications“. 16 IETF RFC 3926: “Flute - File Delivery over Unidirectional Transport“. 17 ETSI EN 301 192: “Digital Video Broadcasting (DVB); DVB specificat
34、ion for data broadcasting“. 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. For non-specific references, the latest version of the referenced document (including any
35、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: Architecture“. i.3 ETSI TR 101 211: “Digital Video Broadcasting (DVB); Guidelines on implement
36、ation and usage of Service Information (SI)“. 3 Definitions, symbols and abbreviations 3.1 Definitions For the purposes of the present document, the following terms and definitions apply: DAB IPDC Service: DAB Service transporting one or more IPDC Services IPDC Service: offer from a service provider
37、 to which media content is related. NOTE: The IPDC Service uses the MPEG Service for transport MPEG Service: transport service for IPDC Services NOTE: In DVB/MPEG Systems (ISO/IEC 13818-1 11) the normal understanding of an MPEG Service is an Audio and Video Service ETSI ETSI TS 102 978 V1.1.1 (2008-
38、07) 7 3.2 Symbols For the purposes of the present document, the following symbols apply: = Assignment operator != Relational operator: Not equal to 3.3 Abbreviations For the purposes of the present document, the following abbreviations apply: A/V Audio/Video AAC Advanced Audio Coding ALC Asynchronou
39、s Layered Coding AV Audio-Visualbslbf Bit string, left bit first. NOTE: “Left“ is the order in which bit strings are written in the present document. Bit strings are written as a string of 1s and 0s within single quote marks, e.g. 1000 0001. Blanks within a bit string are for ease of reading and hav
40、e no significance. CAT Conditional Access Table CBMS Convergence of Broadcast and Mobile Services CIF Common Interleaved Frame COFDM Coded Orthogonal Frequency Division Multiplex CRC Cyclic Redundancy Check CU Capacity Unit DAB Digital Audio Broadcasting DMB Digital Multimedia Broadcasting DVB Digit
41、al Video Broadcasting DVB-H DVB-Handheld DVB-T Digital Video Broadcasting - Terrestrial EIT Event Information Table EPG Electronic Programme Guide ESG Electronic Service Guide ESM Enhanced Stream Mode FEC Forward Error Correction FIC Fast Information Channel FLUTE File deLivery over Unidirectional T
42、ransport H.264/AVC H.264/Advanced Video Coding HDTV High Definition TeleVision HE AAC High-Efficiency Advanced Audio Coding HTML Hyper Text Markup Language IEC International Electrotechnical Commission INT IP Notification Table IP Internet Protocol IPDC IP Data Casting ISO International Organization
43、 for Standardization LCT Layered Coding Transport MBMS Multimedia Broadcast/Multicast Service MPE Multi Protocol Encapsulation MPEG Moving Pictures Experts Group MPEG-2 TS MPEG-2 Transport Stream MPEG-2 MPEG Standard for Generic Coding of Moving Pictures and Associated Audio (ISO/IEC 13818) MSC Main
44、 Service Channel NIT Network Information Table PAT Programme Association Table PCR Programme Clock Reference PID Packet IDentifier PMT Programme Map Table ETSI ETSI TS 102 978 V1.1.1 (2008-07) 8 PNG Portable Network Graphics PSI Programme Specific Information PSNR Peak Signal-to-Noise Ratio RF Radio
45、 Frequency RS Reed-Solomon RTP Real-time Transport Protocol SAT Sub-channel Assignment Table SDP Session Description Protocol SDT Service Description Table SI Service Information SRTP Secure Real-time Transport Protocol TDT Time and Date Table TS Transport StreamTSDT Transport Stream Description Tab
46、le UDP User Datagram Protocol uimsbf Unsigned integer, most significant bit first NOTE: The byte order of multi-byte words in the coded bit-stream is most significant byte first. UMTS Universal Mobile Telecommunications System VBR Variable Bit Rate XML Extensible Markup Language 4 General concept an
47、d structure 4.1 DAB IPDC system architecture The idea of DAB IPDC is to transmit IP Datacast (IPDC) Services over DAB (EN 300 4017) taking into account the transport of IPDC over MBMS and DVB. For the transport the DAB IPDC Layer is defined which is placed on top of the MSC streaming mode of the DAB
48、 system. Figure 1 shows the DAB IPDC Layer in the context of different transmission systems. AudioDMBTVDVB-HMBMSDABIPDCFigure 1: DAB IPDC in the context of other transmission systems IP Datacast over DAB is an end-to-end broadcast system for delivery of any type of digital content using IP-based mec
49、hanisms optimized for devices with limitations on computational resources and battery. The most important DAB IPDC application is the efficient transport of multiple audiovisual services based on H.264/AVC video coding 12 or b) PAT packets do not contain an adaptation field and the number of padding bytes following the PAT section is greater than the length of that PSI/SI/SAT section plus 3. For case A, the existing adaptation field shall be extended; for case B, an adaptation field shall be inserted. For al
