1、ETSI EN 301 700 1.1.1 (2000-03) European Standard (Telecomm unica tions series) Digital Audio Broadcasting (DAB); VHF/FM Broadcasting: cross-referencing to simulcast DAB services by RDS-ODA 147 2 ETSI EN 301 700 V1.l.l (2000-03) Reference D ENIJTC-DAB- RDS-ODA Keywords audio, broadcasting, DAB, data
2、, digital, FM, radio, RDS, service, system ETSI Postal address F-O6921 Sophia Antipolis Cedex - FRANCE Office address 650 Route des Lucioles - Sophia Antipolis Valbonne - FRANCE Siret No 348 623 562 0001 7 - NAF 742 C Association but non lucratif enregistre la Sous-prfecture de Grasse (06) No 7803/8
3、8 Tel.: +33 4 92 94 42 O0 Fax: +33 4 93 65 47 16 Internet secretariata et.si.fr Individual copies of this ETSI deliverable can be downloaded from http:/www.etsi.org If you find errors in the present document, send your comment to: editorQetsi.fr ImiDortant notice This ETSI deliverable may be made av
4、ailable 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 the printing on ETSI printers of the PDF version kept on
5、 a specific network drive within ETSI Secretariat. 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 Telecommunications Standards Institute 2000. O European Broadcas
6、ting Union 2000. All rights reserved. ETSI 3 ETSI EN 301 700 V1.l.l (2000-03) Contents Intellectual Property Rights 4 Foreword 4 1 2 3 3.1 3.2 3.3 4 4.1 4.2 4.2.1 4.2.2 5 5.1 5.2 5.2.1 5.2.2 5.2.3 5.3 5.3.1 5.3.2 5.3.3 Scope 5 References 5 Definitions, abbreviations and terminology . 5 Definitions 5
7、 Abbreviations . 6 Reserved bits 6 Overview of the service referencing ODA definition 6 Introduction 6 ODA description 7 Ensemble table . 7 Service table . 7 Definition of the ODA . 7 Introduction 7 ODA channel definition . 8 Application Group Type Code field . 8 Message bits field . 8 Application I
8、dentification (AID) field 8 ODA group definition 8 5.3.3.1 5.3.3.2 5.3.3.3 5.3.4 5.3.4.1 5.3.4.2 5.3.4.2.1 5.3.4.2.2 5.3.4.3 Group type code field . 9 E/S flag . 9 Ensemble table definition . 9 Mode field 9 Frequency field . 9 EId field 9 Service table definition . 10 Variant code field . 10 Variant
9、 O: Ensemble information 10 SId field 11 Information block . 10 Variant 1: Linkage information . 10 6 Operational requirements . 11 Annex A (normative): ODA Registration Document 13 History 14 ETSI 4 ETSI EN 301 700 V1.l.l (2000-03) Intellectual Property Rights IPRs essential or potentially essentia
10、l 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-members, and can be found in SR O00 3 14: “Intellectual Propero Rights (IPRs); Essential, or potentially Essential, IPRs notifed to ETS
11、I in respect of ETSI standards“, which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (http:/www.etsi.org/ipr). 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 ex
12、istence of other IPRs not referenced in SR O00 314 (or the updates on the ETSI Web server) which are, or may be, or may become, essential to the present document. Foreword This European Standard (Telecommunications series) has been produced by Joint Technical Committee (JTC) Broadcast of the Europea
13、n Broadcasting Union (EBU), Comit Europen de Normalisation ELECtrotechnique (CENELEC) and the European Telecommunications Standards Institute (ETSI). National transposition dates Date of adoption of this EN: Date of latest announcement of this EN (doa): Date of latest publication of new National Sta
14、ndard or endorsement of this EN (dople): Date of withdrawal of any conflicting National Standard (dow): 11 February 2000 31 May 2000 30 November 2000 30 November 2000 NOTE 1: The EBUETSI JTC Broadcast was established in 1990 to Co-ordinate the drafting of standards in the specific field of broadcast
15、ing 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 standardization of radio and television receivers. The EBU is a professional association of broadcasting organizations whose work i
16、ncludes 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 European broadcasting area; its headquarters is in Geneva. European Broadcasting Union CH-1218 GRAND SACONNEX (Geneva)
17、 Switzerland Tel: +41 22 717 21 11 Fax: +41 22 717 24 81 EUREKA Project 147 EUREKA Project 147 was established in 1987, with funding from the EC, to develop a system for the broadcasting of audio and data to fixed, portable or mobile receivers. Their work resulted in the publication of a European St
18、andard, EN 300 401 i, for DAB (note 2) which now has world-wide acceptance. The members of the Eureka 147 Project are drawn from broadcasting organizations and telecommunication providers together with companies from the professional and consumer electronics industry. NOTE 2: DAB is a registered tra
19、demark owned by one of the EUREKA 147 partners. ETSI 5 ETSI EN 301 700 V1.l.l (2000-03) 1 Scope The present document establishes a standard method for signalling DAB service information to a receiver tuned to an FM-RDS service. The RDS Open Data Application (RDS-ODA) system is used EN 50067 2. The p
20、resent document is applicable to FM radio broadcasts that carry RDS signalling. It describes the characteristics of an RDS-ODA for providing frequency information for DAB ensembles EN 300 401 i. Additionally the ODA can signal various service information attributes of DAB services. This is analogous
21、 to the EON function EN 50067 2 for other services carried on FM. 2 References The 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 n
22、umber, etc.) or non-specific. For a specific reference, subsequent revisions do 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 300 40 1: “Radio
23、Broadcasting Systems; Digital Audio Broadcasting (DAB) to mobile, portable and fixed receivers“. Pl EN 50067: “Specification of the radio data system (RDS) for VHF/FM sound broadcasting in the frequency range from 87,5 MHz to 108,O MHz“. 3 Definitions, abbreviations and terminology 3.1 Definitions F
24、or the purposes of the present document, the terms and definitions given in EN 300 40 1 11 and EN 50067 2 and the following apply: ensemble: DAB transmitted signal containing programme and data services Ensemble Identifier (Eld): unique 16-bit code, allocated to an ensemble and intended to allow una
25、mbiguous world- wide identification of that ensemble ensemble table: application data that provides information about DAB ensembles group type code: 4-bit code that specifies the application of an RDS group Programme Identification (Pi): 16-bit code used to identify an RDS programme (service) servic
26、e: user selectable output of the receiver Service Identifier (Sld): 16- or 32- bit code used to identify a particular DAB service. For the purposes of the present document all SIds are 16-bit codes service table: application data that provides information about DAB services ETSI 6 ETSI EN 301 700 V1
27、.l.l (2000-03) transmission mode: specific set of transmission parameters (e.g. number of carriers, OFDM symbol duration). Four transmission modes (Le. I, II, III and IV) are defined to allow the DAB system to be used in different network configuration and a range of operating frequencies 3.2 Abbrev
28、iations For the purposes of the present document, the abbreviations given in EN 300 401 i and the following apply: AID DAB EIS EId EON EWS FIG FM IH ILS LA LSN ODA PI PTY RDS RP SIH SId TDC TMC TP Application IDentification Digital Audio Broadcasting EnsemblelS ervice Ensemble Identifier Enhanced Ot
29、her Networks Emergency Warning System Fast Information Group Frequency Modulation In House International Linkage Set indicator Linkage Actuator Linkage Set Number Open Data Application Programme Identification Programme Type Radio Data System Radio Paging SoftIHard Service Identifier Transparent Dat
30、a Channel Traffic Message Channel Traffic Programme 3.3 Reserved bits In some fields, unused bits may be found. These are designated as: Rfa: Reserved for future addition. The future use of Rfa bits shall not modify the usage of other bits in the same field as the Rfa bits. Rfu: Reserved for future
31、use. The future use of Rfu bits can modify the usage of other bits in the same field as the Rfu bits. Unless otherwise specified, the values of bits designated as either Rfa or Rfu shall be set to zero. 4 Overview of the service referencing ODA definition 4.1 I nt roduct ion DAB services are being b
32、roadcast in many countries and some of these services are simulcasts of existing FM services, usually with RDS. However it is likely to be a number of years before DAB coverage equals that of FM. DAB provides superior quality reception over FM, and consequently should be the preferred choice for lis
33、tening where available. Receivers able to receive both DAB and FM services should therefore present the listener with the DAB service where present, but can fall back to the FM service outside the DAB coverage area. DAB provides the signalling, through the service following information in the Fast I
34、nformation Channel, to enable a receiver to find the equivalent service on FM. The present document describes the way that DAB service information can be provided from FM-RDS by using an Open Data Application (ODA) thus allowing a receiver to find an equivalent DAB service. ETSI 7 ETSI EN 301 700 V1
35、.l.l (2000-03) For FM (and AM) broadcasts, services are carried on one or a number of frequencies. The RDS system EN 50067 2 allows a service provider to send all the frequencies the service is available on to receivers. A receiver can build up a list of alternate frequencies which allow it, when mo
36、bile, to find the best frequency for that service. The RDS system also allows other service information to be provided, and, through the Enhanced Other Networks (EON) feature, this can be extended to other services. For DAB broadcasts, the situation is slightly different in that services are carried
37、 within ensembles. A given service may be carried in one or a number of ensembles and each ensemble may be carried on one or a number of frequencies. The ODA defined in the present document allows a service provider to signal frequency and transmission mode information about DAB ensembles and linkag
38、e information and ensemble information about DAB services. This information can be used by a receiver to perform service following from FM-RDS to DAB. The minimum information required is provided by the ensemble table. Additional information can be signalled using the service table. 4.2 ODA descript
39、ion The ODA is specified such that each received RDS group contains a complete information entity. The data contained is usable directly without reference to any other group. The ODA uses a type A group and therefore there are 37 bits available for coding. One bit is used to differentiate between da
40、ta for the ensemble table and data for the service table. 4.2.1 Ensemble table The ensemble table contains the basic information required for service following. It signals the Ensemble Identifier (EId), the DAB transmission mode, and the frequency of the ensemble. The service provider shall signal e
41、very transmission mode and frequency for an ensemble before sending the modes and frequencies for the next ensemble. Reception of the ensemble table does not mean that the tuned RDS service is carried on that ensemble. The purpose of the ensemble table is to allow the receiver to build up informatio
42、n about DAB ensembles. To locate an equivalent DAB service for service following requires that the receiver tune to each ensemble and inspect the service linking information (either signalled or implicit). This task can be simplified by using the service table also. 4.2.2 Service table The service t
43、able provides additional information about services available on DAB. 16 variants are available, of which two are presently defined. These are used to provide the list of ensembles that a DAB service is available on, and to provide linkage information for a DAB service. The service provider shall si
44、gnal every ensemble that a service is carried in before signalling the other attributes for that service. Once all the information is signalled for one service, the information for the next service may be signalled, and so on. 5 5.1 Definition of the ODA I nt roduct ion The presence of an ODA channe
45、l and its application identifier (AID) are signalled using RDS group type 3A EN 50067 2. The actual group that is used to convey the application data is also signalled by this group, since a number of ODA channels may be present in the RDS stream for a given service. The groups allowed to convey ODA
46、s are given in EN 50067 2. The present document specifies an ODA which operates in mode 1.1 EN 50067 2 (Le. it uses type A groups only). It has the AID 147 (decimal), 0093 (hexadecimal). The definition of the field values for the type 3A group is given in subclause 5.2. The definition of the ODA gro
47、up is given in subclause 5.3. Further information on the use of ODAs is described in the RDS specification EN 50067 2. ETSI 8 ETSI EN 301 700 V1.l.l (2000-03) 5.2 ODA channel definition Figure 1 gives the format and field value definition for the type 3A group to indicate the presence of the service
48、 referencing ODA. Bo TP II . . iiiii iiiii i, i. j i i i.jjii ii Application Group Type Code M-ssage bits Application Identification (A ID) Figure 1 : Structure of type 3A group for AID = 147 (0093 hexadecimal) 5.2.1 Application Group Type Code field This 5-bit field shall indicate the group used, i
49、n a particular transmission, to carry the application data. The ODA uses a type A group. Table 1 specifies the permitted group types. Table 1 : ODA group availability 5.2.2 Message bits field This 16-bit field shall be reserved for future addition and shall be set to the value O000 (hexadecimal) until they are defined. 5.2.3 Application Identification (AID) field This 16-bit field shall indicate the application. It shall be set to the value 0093 (hexadecimal). 5.3 ODA group definition Figure 2 shows the format of the ODA group for AID = 147 (0093 hexadecima
