1、ETSI TS 101 736 1.1.1 (2000-07) Technical Specification Digital Audio Broadcasting (DAB); Network Independent Protocols for Interactive Services 2 Reference DTS/JTC-DAB-14 Keywords audio, broadcasting, DAB, digital, interaction, network, protocol ETSI 650 Route des Lucioles F-O6921 SoDhia AntiDolis
2、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 ImiDortant notice ETSI TS 1 O1 736 V1.l.l (2000-07) Individual copies of the present document can be downloaded fr
3、om: http:/w.etsi.aq 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 shall be t
4、he 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 available at
5、 htip:/.etsi.orn/lb/statusi 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 Telec
6、ommunications Standards Institute 2000. O European Broadcasting Union 2000. All rights reserved. ETSI 3 ETSI TS 1 O1 736 V1.l.l (2000-07) 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
7、9.3 9.3.1 9.3.2 Scope 6 References 6 Abbreviations . 7 Reference models . 8 System model . 9 Protocol stack model 8 Protocol stacks . 10 General . 10 Content transport . data 10 Broadcast channel . 10 Session control signalling . 12 Two-way interaction with personal DAB services 12 PPP data link Set
8、-up . 13 TCP connection Set-up . 13 Interaction channel 11 One-way interaction 12 Two-way interaction with personal FBC services . 12 Connection control signalling . 12 General . 13 PPP configuration for IP transmission 13 Session control in personal DAB services . 14 General . 14 Session establishm
9、ent . 14 Session 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 ETSI 4 ETSI T
10、S 1 O1 736 V1.l.l (2000-07) Annex A (informative): Guidelines for choice of protocols for interactive services 26 A.l General . 26 A.2 One-way interaction . 26 A.3 A.4 Annex B (normative): Two-way interaction. personal FBC services 26 Two-way interaction. personal DAB services . 26 Guidelines for Se
11、t-up and handover for personal DAB service sessions 28 B.l General . 28 B.2 Personal DAB service session Set-up . 28 B.2.1 Initiated by the user terminal 28 B.2.1.1 Phase 1 28 B.2.1.2 Phase 2 28 B.2.2.1 Phase 1 29 B.2.2.2 Phase 2 29 B . 3 Personal DAB service session handover 30 B.3.1 Initiated by t
12、he user terminal 30 B.3.2 History 31 B.2.2 Initiated by the network 29 Initiated by the network 30 ETSI 5 ETSI TS 1 O1 736 V1.l.l (2000-07) Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to these
13、 essential IPRs, 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 up
14、dates are available on the ETSI Web server (htti,:/www.etsi.oxg/ii-). 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
15、 server) which are, or may be, or may become, essential to the present document. Foreword This Technical Specification (TS) has been produced by the Joint Technical Committee (JTC) Broadcast of the European Broadcasting Union (EBU), Comit Europen de Normalisation ELECtrotechnique (CENELEC) and the E
16、uropean Telecommunications Standards Institute (ETSI). NOTE 1: The EBUETSI 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
17、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-making and programme-exch
18、ange 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 established in 1987, with fu
19、nding 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, ETS 300 401 2, for DAB (see note) which now has worldwide acceptance. The members of the Eureka Project
20、147 are drawn from broadcasting organizations 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 TS 1 O1 736 V1.l.l (2000-07) 1 Scope The p
21、resent document covers the core Digital 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 varie
22、ty of future interactive services, through 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 serv
23、ice consumers and low bitrate interaction 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 service
24、s with interactivity. At the simplest 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-m
25、ail) on-demand, both via the broadcast 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
26、. The specification of the network dependent 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 compati
27、ble with the DVB solutions thereby creating 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 T
28、he following documents contain provisions 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
29、not apply. For a non-specific reference, the latest version applies. A non-specific reference to an ETS shall also be taken to refer to later versions published as an EN with the same number. il ETSI EN 301 234: “Digital Audio Broadcasting (DAB); Multimedia Object Transfer (MOT) protocol“. ETSI ETS
30、300 401: “Radio broadcasting systems; Digital Audio Broadcasting (DAB) to mobile, portable and fixed receivers“. ETSI TS 101 737: “Digital Audio Broadcasting (DAB); Interaction channel through Global System for Mobile communications (GSM) the Public switched Telecommunications System (PSTN); Integra
31、ted Services Digital Network (ISDN) and Digital Enhanced Cordless Telecommunications (DECT)“. ETSI TS 101 756: “Digital Audio Broadcasting (DAB); Registered Tables“. ETSI TS 101 735: “Digital Audio Broadcasting (DAB); Internet Protocol (IP) datagram tunnelling“. Pl 31 41 51 ETSI 7 ETSI TS 1 O1 736 V
32、1.l.l (2000-07) IETF/RFC 768 (1980): “User Datagram Protocol“, J. Postel. IETF/RFC 791 (198 1): “Internet Protocol“, J. Postel. IETF/RFC 793 (198 1): “Transmission Control Protocol“, J. Postel. IETF/RFC 1332 (1992): “The PPP Internet Protocol Control Protocol (IPCP)“, G. McGregor. IETF/RFC 1661 (199
33、4): “The Point-to-Point Protocol (PPP)“, W. Simpson. ISO/IEC 8859-1 (1998): “Information technology - 8-bit single-byte coded graphic character sets - Part 1: Latin alphabet No. 1“. IETF/RFC 959 (1985): “File Transfer Protocol (FTP)“, J. Postel, J.K. Reynolds. IETF/RFC 1700 (1994): “Assigned Numbers
34、“, J. Reynolds, J. Postel. IETF/RFC 1725 (1994): “Post Office Protocol - Version 3“, J. Myers, M. Rose. IETF/RFC 1994 (1996): “PPP Challenge Handshake Authentication Protocol (CHAP)“, W. Simpson. IETF/RFC 2068 (1997): “Hyper Text Transfer Protocol - HTTP/1.1“, R. fielding, J. Gettys, J. Mogul, H. Fr
35、ystyk, T. Berners-Lee. GSM 03.40: “Digital cellular telecommunications system (Phase 2+); Technical realization of the Short Message Service (SMS) Point-to-Point (PP)“. GSM 03.38: “Digital cellular telecommunications system (Phase 2+); Alphabets and language-specific information“. 3 Abbreviations Fo
36、r the purposes of the present document, the following abbreviations apply: BC CHAP DAB DECT DVB EId EUA FBC FTP GSM HTTP IC IETF/RFC IM IP IPCP ISDN LCP MMI MOT MSC NCU os1 PAD PAP POP3 DAB-RM Broadcast Channel Challenge Handshake Authentication Protocol Digital Audio Broadcasting Digital Audio Broa
37、dcasting - Receiver Module Digital Enhanced Cordless Telecommunications Digital Video Broadcasting Ensemble Identifier End User Address Feed Back Channel File Transfer Protocol Global System for Mobile communication Hyper Text Transfer Protocol Interaction Channel Internet Engineering Task Force/Req
38、uest For Comments Interaction Module Internet Protocol Internet Protocol Control Protocol Integrated Services Digital Network Link Control Protocol Man Machine Interface Multimedia Object Transfer protocol Main Service Channel Network Control Unit Open Systems Interconnection Programme Associated Da
39、ta Password Authentication Protocol Post Office Protocol ETSI 8 ETSI TS 1 O1 736 V1.l.l (2000-07) PPP PSSC PSTN SCId SId SMS TCP UDP UT X-PAD Point-to-Point Protocol Personal Service Session Control protocol Public Switched Telephone Network Service Component Identifier Service Identifier Short Mess
40、age Service Transmission Control Protocol User Datagram Protocol User Terminal Extended Programme Associated Data 4 Reference models 4.1 Protocol stack model For asymmetric interactive services supporting broadcast to mobile/portable/stationary receivers with a narrowband return channel, a simple co
41、mmunication model consists of the following layers: application layer: is the interactive application software and runtime environments (e.g. home shopping application, script interpreter, etc.). transport layer: defines all the relevant data structures and communication protocols. physical layer: w
42、here all the physical (electrical) transmission parameters are defined. The present document addresses the lower two layers (the physical and transport) leaving the application layer open to competitive market forces. It is not the role of the present document to define standardized applications. A
43、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 simplified model and identifies some of the key parameters for the lower two layers. Following the user requirements for interactive services, no
44、attempt will be made to consider higher layers in the present document. ETSI 9 ETSI TS 101 Layer Structure for Generic System Reference Model Higher medium layers Access mechanism Packet Structure Modulation Channel Coding Freq.Range Filtering Equalisation Power Network Independent Protocols Network
45、 Dependent Protocols 736 V1.l.l (2000-07) Figure 1 : Layer structure for generic system reference model 4.2 System model Figure 2 shows the system model which is to be used within DAB for interactive services. In the system model, two channels are established between the service provider and the end
46、 user: Broadcast Channel (BC): an unidirectional broadband broadcast channel that can include audio, low bit-rate video and different types of data. BC is established from the service provider to the end users. It may include the forward interaction path in other words distributing individually addr
47、essed data to the end user. Interaction Channel (IC): a bi-directional interaction channel is established between the service provider and the end user for interaction purposes. It is formed by: - return interaction path (return channel): from the end user to the service provider. It is used for ins
48、tance 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; forward interaction path: from the service provider to the end user. It is used to provide some sort of individually addressed information by the se
49、rvice provider to the end user and any other required communication for the interactive service provision. It may be embedded into the broadcast channel. It is 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 intera
