1、ETSI ES 201 736 1.1.1 (2000-09) ETSI Standard Digital Audio Broadcasting (DAB); Network Independent Protocols for Interact ive Services 2 ETSI ES 201 736 V1.l.l (2000-09) The pre Reference DES/JTC-DAB-15 Keywords audio, broadcasting, DAB, digital, interaction, network, protocol ETSI 650 Route des Lu
2、cioles F-O6921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 O0 Fax: +33 4 93 65 47 16 Siret No 348 623 562 0001 7 - NAF 742 C Association but non lucratif enregistre la Sous-prfecture de Grasse (06) No 7803/88 Important notice Individual copies of the present document can be downloaded from:
3、 http:llwww.etsi.org ent document may be made available in more than one electronic version or in print. In ase 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 shall be the printing
4、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 available at http:llwww.
5、t3t5i.or(8/lb/5tatus/ If you find errors in the present document, send your comment to: editor et.si.fr Copyright Notification No part may be reproduced except as authorized by written permission. The copyright and the foregoing restriction extend to reproduction in all media. O European Telecommuni
6、cations Standards Institute 2000. O European Broadcasting Union 2000. All rights reserved. ETSI 3 ETSI ES 201 736 V1.l.l (2000-09) Content Intellectual Property Rights 5 Foreword . 5 1 2 3 4 4.1 4.2 5 5.1 5.2 5.2.1 5.2.2 5.3 5.3.1 5.3.2 5.3.3 5.4 6 6.1 6.2 7 8 8.1 8.2 8.3 8.4 8.5 8.6 9 9.1 9.2 9.3 9
7、.3.1 9.3.2 Scope 6 References 6 Abbreviations . 7 Reference models . 8 Protocol stack model 8 System model . 9 Protocol stacks 10 General . 10 Content transport . data 10 Broadcast channel . 10 Interaction channel 11 Session control signalling . 12 One-way interaction 12 Two-way interaction with per
8、sonal FBC services 12 Two-way interaction with personal DAB services . 12 Connection control signalling . 12 PPP data link Set-up 13 TCP connection Set-up . 13 General . 13 PPP configuration for IP transmission 13 Session control in personal DAB services 14 General . 14 Session establishment . 14 Se
9、ssion release 16 Alive checking 17 Handover 18 Temporary download through interaction channel . 19 PSSC message format 20 General . 20 PSSC header . 20 PSSC parameter fields formats . 21 General data structure of parameter fields 21 Data field structure of parameter field 22 Annex A (informative): G
10、uidelines for choice of protocols for interactive services . 26 A.2 One-way interaction . 26 Two-way interaction. personal DAB services 26 A.l General . 26 A.3 A.4 Annex B (normative) : B.l General . 28 B.2 B.2.1 Two-way interaction. personal FBC services . 26 Guidelines for Set-up and handover for
11、personal DAB service sessions 28 Personal DAB service session Set-up . 28 Initiated by the user terminal 28 ETSI 4 ETSI ES 201 736 V1.l.l (2000-09) B.2.1.1 Phase 1 28 B.2.1.2 Phase 2 28 B.2.2 Initiated by the network 29 B.2.2.1 Phase 1 29 B.2.2.2 Phase 2 29 B.3 Personal DAB service session handover
12、30 B.3.1 Initiated by the user terminal 30 B.3.2 Initiated by the network 30 History 31 ETSI 5 ETSI ES 201 736 V1.l.l (2000-09) Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to these essential I
13、PRs, if any, is publicly available for ETSI members and non-members, and can be found in ETSI SR O00 3 14: “Intellectual Propero Rights (IPRs); Essential, or potentially Essential, IPRs notifed to ETSI in respect of ETSI standards“, which is available from the ETSI Secretariat. Latest updates are av
14、ailable on the ETSI Web server (-). 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 O00 314 (or the updates on the ETSI Web server) which are, or may be, or
15、may become, essential to the present document. Foreword This ETSI Standard (ES) 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 (
16、ETSI)(Broadcast). NOTE 1: 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 in the Memorandum of Understanding also CENELEC, which is
17、 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-making and programme-exchange domains. The EBU has active mem
18、bers 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 established in 1987, with funding from the European Commission,
19、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, ETS 300 401 2, for DAB (see note) which now has worldwide acceptance. The members of the Eureka Project 147 are drawn from broadcasting orga
20、nizations and telecommunication providers together with companies from the professional and consumer electronics industry. NOTE 2: DAB is a registered trademark owned by one of the Eureka Project 147 partners. ETSI 6 ETSI ES 201 736 V1.l.l (2000-09) 1 Scope The present document covers the core Digit
21、al Audio Broadcasting (DAB) requirements to enable interactive services supporting broadcasting to mobile, portable and fixed receivers with narrowband return channels. The system defined in the present document provides a variety of generic solutions for a variety of future interactive services, th
22、rough the adoption of the MOT protocol (specific for DAB) and the IP protocol. The interactive services are provided on systems consisting of a high bitrate downstream channel (up to the maximum bitrate of the broadcast channel) from the service providers to service consumers and low bitrate interac
23、tion channels. The Broadcast service provider and the interactive service provider need not operate from the same location (see figure 2). The services are seen from DAB Program Associated Data (PAD) enhanced and standalone (packet mode) data broadcasting services with interactivity. At the simplest
24、 level the interactive channel allows the consumer to react by voting, to order articles displayed in the broadcast or make reservations of hotel rooms, restaurant tables, etc. It is also possible to deliver text, graphics, audio and still pictures (including e-mail) on-demand, both via the broadcas
25、t channel and the interaction channel. There are many possible network configurations covering the currently specified DAB broadcast options including terrestrial, satellite and cable in conjunction with GSM, PSTN, ISDN, DECT and other interactive channel options. The specification of the network de
26、pendent protocols are specified within TS 101 737 3. In the process of producing the present document the specifications for an interaction channel for Digital Video Broadcasting (DVB) has carefully been studied. The goal has been to as far as possible be compatible with the DVB solutions thereby cr
27、eating a common concept of treating the combination broadcast-/telecommunicationsystem. Although the use of existing DAB data transfer protocols for the broadcast channel, when appropriate, has been essential in the writing of the present document. 2 References The following documents contain provis
28、ions which, through reference in this text, constitute provisions of the present document. References are either specific (identified by date of publication, edition number, version number, etc.) or non-specific. For a specific reference, subsequent revisions do not apply. For a non-specific referen
29、ce, the latest version applies. il ETSI EN 30 1 234: “Digital Audio Broadcasting (DAB); Multimedia Object Transfer (MOT) protocol“. ETSI ETS 300 401: “Radio broadcasting systems; Digital Audio Broadcasting (DAB) to mobile, portable and fixed receivers“. ETSI TS 10 1 737: “Digital Audio Broadcasting
30、(DAB); Interaction channel through Global System for Mobile communications (GSM) the Public switched Telecommunications System (PSTN); Integrated Services Digital Network (ISDN) and Digital Enhanced Cordless Telecommunications (DECT)“. Pl 31 41 51 ETSI TS 101 756: “Digital Audio Broadcasting (DAB);
31、Registered Tables“. ETSI TS 101 735: “Digital Audio Broadcasting (DAB); Internet Protocol OP) datagram tunnelling“. IETF/RFC 768 (1980): “User Datagram Protocol“, J. Postel. IETF/RFC 791 (1981): “Internet Protocol (IP)“, J. Postel. ETSI 7 ETSI ES 201 736 V1.l.l (2000-09) IETF/RFC 793 (198 i): “Trans
32、mission Control Protocol“, J. Postel. IETF/RFC 1332 (1992): “The PPP Internet Protocol Control Protocol (IPCP)“, G. McGregor. IETF/RFC 1661 (1994): “The Point-to-Point Protocol (PPP)“, W. Simpson. ISO/IEC 8859-1 (1998): “Information technology - 8-bit single-byte coded graphic character sets - Part
33、1: Latin alphabet No. 1“. IETF/RFC 959 (1985): “File Transfer Protocol (FP)“, J. Postel, J.K. Reynolds. IETF/RFC 1700 (1994): “Assigned Numbers“, J. Reynolds, J. Postel. IETF/RFC 1725 (1994): “Post Office Protocol - Version 3“, J. Myers, M. Rose. IETF/RFC 1994 (1996): “PPP Challenge Handshake Authen
34、tication Protocol (CHAP)“, W. Simpson. IETF/RFC 2068 (1997): “Hyper Text Transfer Protocol - HTTP/1.1“, R. fielding, J. Gettys, J. Mogul, H. Frystyk, T. Berners-Lee. GSM 03.40: “Digital cellular telecommunications system (Phase 2+); Technical realization of the Short Message Service (SMS) Point-to-P
35、oint (PP)“. GSM 03.38: “Digital cellular telecommunications system (Phase 2+); Alphabets and language-specific information“. 3 Abbreviations For the purposes of the present document, the following abbreviations apply: BC CHAP DAB DAB-RM DECT DVB EId EUA FBC FTP GSM HTTP IC IETF/RFC IM IP IPCP ISDN L
36、CP MMI MOT MSC NCU os1 PAD PAP POP3 PPP PSSC PSTN SCId Broadcast Channel Challenge Handshake Authentication Protocol Digital Audio Broadcasting Digital Audio Broadcasting - Receiver Module Digital Enhanced Cordless Telecommunications Digital Video Broadcasting Ensemble Identifier End User Address Fe
37、ed Back Channel File Transfer Protocol Global System for Mobile communication Hyper Text Transfer Protocol Interaction Channel Internet Engineering Task Force/Request For Comments Interaction Module Internet Protocol Internet Protocol Control Protocol Integrated Services Digital Network Link Control
38、 Protocol Man Machine Interface Multimedia Object Transfer protocol Main Service Channel Network Control Unit Open Systems Interconnection Programme Associated Data Password Authentication Protocol Post Office Protocol Point-to-Point Protocol Personal Service Session Control protocol Public Switched
39、 Telephone Network Service Component Identifier ETSI 8 ETSI ES 201 736 V1.l.l (2000-09) SId Service Identifier SMS Short Message Service TCP Transmission Control Protocol UDP User Datagram Protocol UT User Terminal X-PAD Extended Programme Associated Data 4 4.1 Reference models Protocol stack model
40、For asymmetric interactive services supporting broadcast to mobile/portable/stationary receivers with a narrowband return channel, a simple communication model consists of the following layers: application layer: is the interactive application software and runtime environments (e.g. home shopping ap
41、plication, script interpreter, etc.). transport layer: defines all the relevant data structures and communication protocols. physical layer: where all the physical (electrical) transmission parameters are defined. The present document addresses the lower two layers (the physical and transport) leavi
42、ng the application layer open to competitive market forces. It is not the role of the present document to define standardized applications. A simplified model of the OS1 layers is adopted to facilitate the production of specifications for these nodes. Figure 1 points out the lower layers of the simp
43、lified model and identifies some of the key parameters for the lower two layers. Following the user requirements for interactive services, no attempt will be made to consider higher layers in the present document. ETSI 9 ETSI ES 201 736 V1.l.l (2000-09) Layer Structure for Generic System Reference M
44、odel Higher medium layers Access mechanism Packet Structure Modulation Channel Coding Freq.Range Filtering Equalisation Power Network Independent Protocols Network Dependent Protocols Figure 1 : Layer structure for generic system reference model 4.2 System model Figure 2 shows the system model which
45、 is to be used within DAB for interactive services. In the system model, two channels are established between the service provider and the end user: Broadcast Channel (BC): an unidirectional broadband broadcast channel that can include audio, low bit-rate video and different types of data. BC is est
46、ablished from the service provider to the end users. It may include the forward interaction path in other words distributing individually addressed data to the end user. Interaction Channel (IC): a bi-directional interaction channel is established between the service provider and the end user for in
47、teraction purposes. It is formed by: - return interaction path (return channel): from the end user to the service provider. It is used for instance to make requests to the service provider or to answer questions. In most cases it is a narrow-band channel also commonly known as return channel; forwar
48、d interaction path: from the service provider to the end user. It is used to provide some sort of individually addressed information by the service provider to the end user and any other required communication for the interactive service provision. It may be embedded into the broadcast channel. It i
49、s possible that this channel is not required in some simple implementations which make use of the broadcast channel for the carriage of data to the end user. - The UT is formed by the DAB Receiver Module (DAB-RM), the Interaction Module (IM), the Man Machine Interface (MMI) and the application module. The UT provides interface for both broadcast and interaction channels. The interface between the UT and the interaction network is via the interaction module. ETSI 10 ETSI ES 201 736 V1.l.l (2000-09) Packet mode The interface between the broadcast channels and the user termina
