1、 ETSI TS 103 270 V1.2.1 (2015-09) RadioDNS Hybrid Radio; Hybrid lookup for radio services TECHNICAL SPECIFICATION ETSI ETSI TS 103 270 V1.2.1 (2015-09)2 Reference RTS/JTC-032 Keywords broadcasting, DNS, IP, radio ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 4
2、2 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 The present document can be downloaded from: http:/www.etsi.org/standards-search The present document may be made available in electro
3、nic versions and/or in print. The content of any electronic and/or print versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any existing or perceived difference in contents between such versions and/or in print, the only prevailing docu
4、ment is the print of the Portable Document Format (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
5、 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: https:/portal.etsi.org/People/CommiteeSupportStaff.aspx Copyright Notification No part may be reproduced or utilized in any form or by an
6、y means, electronic or mechanical, including photocopying and microfilm except as authorized by written permission of ETSI. The content of the PDF version shall not be modified without the written authorization of ETSI. The copyright and the foregoing restriction extend to reproduction in all media.
7、 European Telecommunications Standards Institute 2015. European Broadcasting Union 2015. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTMand the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members. 3GPPTM and LTE are Trade Marks of ETSI registered for the benefit of its Membe
8、rs and of the 3GPP Organizational Partners. GSM and the GSM logo are Trade Marks registered and owned by the GSM Association. ETSI ETSI TS 103 270 V1.2.1 (2015-09)3 Contents Intellectual Property Rights 5g3Foreword . 5g3Modal verbs terminology 5g31 Scope 6g32 References 6g32.1 Normative references .
9、 6g32.2 Informative references 6g33 Definitions and abbreviations . 7g33.1 Definitions 7g33.2 Abbreviations . 7g34 Introduction 8g35 Authoritative FQDN resolution, and ServiceIdentifier and bearerURI construction for broadcast services . 9g35.1 RadioDNS FQDN, ServiceIdentifier and bearerURI construc
10、tion . 9g35.1.1 FM with RDS/RBDS 9g35.1.1.1 RDS/RBDS parameters . 9g35.1.1.2 Construction of RadioDNS FQDN . 9g35.1.1.3 Construction of ServiceIdentifier 10g35.1.1.4 Construction of bearerURI 10g35.1.2 Digital Audio Broadcasting (DAB/DAB+). 10g35.1.2.1 DAB/DAB+ parameters 10g35.1.2.2 Construction of
11、 RadioDNS FQDN . 10g35.1.2.3 Construction of ServiceIdentifier 11g35.1.2.4 Construction of bearerURI 11g35.1.3 Digital Radio Mondiale (DRM) 11g35.1.3.1 DRM parameters . 11g35.1.3.2 Construction of RadioDNS FQDN . 12g35.1.3.3 Construction of ServiceIdentifier 12g35.1.3.4 Construction of bearerURI 12g
12、35.1.4 AM Signalling System (AMSS) . 12g35.1.4.1 AMSS parameters . 12g35.1.4.2 Construction of RadioDNS FQDN . 12g35.1.4.3 Construction of ServiceIdentifier 13g35.1.4.4 Construction of bearerURI 13g35.1.5 IBOC . 13g35.1.5.1 IBOC parameters . 13g35.1.5.2 Construction of RadioDNS FQDN . 13g35.1.5.3 Co
13、nstruction of ServiceIdentifier 13g35.1.5.4 Construction of bearerURI 13g35.2 Resolution of Authoritative FQDN 13g36 Authoritative FQDN and ServiceIdentifier resolution and bearerURI construction for IP-streamed services . 14g36.1 General . 14g36.2 Inclusion of parameters into stream metadata 14g36.
14、2.1 Streaming transports . 14g36.2.1.1 SHOUTcast . 14g36.2.1.2 ASF . 14g36.2.1.3 Flash Audio . 15g36.2.2 Metadata intervals . 15g36.3 Construction of bearerURI . 15g36.4 Construction of ServiceIdentifier . 15g37 Authoritative FQDN and ServiceIdentifier resolution from SPI SI . 15g3ETSI ETSI TS 103 2
15、70 V1.2.1 (2015-09)4 8 Implementation requirements . 16g38.1 Service provider implementation . 16g38.2 Device Implementation 16g3Annex A (normative): Deriving the GCC for a service . 17g3A.0 Introduction 17g3A.1 Deriving the GCC using ECC 17g3A.2 Deriving the GCC without ECC . 17g3Annex B (informati
16、ve): Bibliography . 25g3History 26g3ETSI ETSI TS 103 270 V1.2.1 (2015-09)5 Intellectual 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 a
17、nd 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 Secretariat. Latest updates are available on the ETSI Web server (http:/ipr.etsi.org).
18、 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 presen
19、t 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/ETSI
20、 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 standardization o
21、f 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 Euro
22、pean 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 Modal verbs terminology In the present document “shall“, “shall not“, “should“, “should not“, “may“, “need not“, “will“, “will no
23、t“, “can“ and “cannot“ are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of provisions). “must“ and “must not“ are NOT allowed in ETSI deliverables except when used in direct citation. ETSI ETSI TS 103 270 V1.2.1 (2015-09)6 1 Scope The prese
24、nt document defines the methodology for discovering an Authoritative FQDN for a radio service, including discovery using DNS queries to radiodns.org, a root domain name server operated by RadioDNS. The present document also defines the construction of a unique ServiceIdentifier parameter and bearerU
25、RI for a radio service. NOTE: Specifications for applications built upon the RadioDNS methodology can be found at http:/radiodns.org/developers/documentation/. 2 References 2.1 Normative references References are either specific (identified by date of publication and/or edition number or version num
26、ber) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the reference document (including any amendments) applies. Referenced documents which are not found to be publicly available in the expected location might be found at ht
27、tp:/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. The following referenced documents are necessary for the application of the present document. 1 ETSI EN 300 401: “Radio Broadcastin
28、g Systems; Digital Audio Broadcasting (DAB) to mobile, portable and fixed receivers“. 2 ETSI ES 201 980: “Digital Radio Mondiale (DRM); System Specification“. 3 ETSI TS 102 386: “Digital Radio Mondiale (DRM); AM signalling system (AMSS)“. 4 National Radio Systems Committee NRSC-5-B:2008: “In-band/on
29、-channel Digital Radio Broadcasting Standard“. 5 ETSI TS 102 818: “Digital Audio Broadcasting (DAB); Digital Radio Mondiale (DRM); XML Specification for Electronic Programme Guide (EPG)“. 6 IETF RFC 1035 (1987): “Domain Names - Implementation and Specification“. 7 IETF RFC 3761 (2004): “The E.164 to
30、 Uniform Resource Identifiers (URI) Dynamic Delegation Discovery System (DDDS) Application (ENUM)“. 8 IEC 62106:2015: “Specification of the Radio Data System (RDS) for VHF/FM sound broadcasting in the frequency range from 87,5 MHz to 108,0 MHz“. 9 National Radio Systems Committee NRSC-4-B: “Specific
31、ation of the radio broadcast data system (RBDS)“. NOTE: Available at http:/www.nrscstandards.org/sg/nrsc-4-b.pdf. 10 ISO 3166-1: “Codes for the representation of names of countries and their subdivisions - Part 1: Country codes“. 11 Void. 12 ETSI TS 101 756: “Digital Audio Broadcasting (DAB); Regist
32、ered Tables“. 2.2 Informative references References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the reference document (inc
33、luding any amendments) applies. ETSI ETSI TS 103 270 V1.2.1 (2015-09)7 NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee their long term validity. The following referenced documents are not necessary for the application of the present doc
34、ument but they assist the user with regard to a particular subject area. Not applicable. 3 Definitions and abbreviations 3.1 Definitions For the purposes of the present document, the following terms and definitions apply: authoritative FQDN: internet domain for a service provider bearer: method of c
35、arriage of the service bearerURI: unique identifier for the service to be used in SPI SI documents char: single character hexadecimal: representation of a number in base-16 using the characters 0-9, a-f nibble: four-bit aggregation, or half an octet RadioDNS FQDN: internet domain constructed only fo
36、r the purposes of querying DNS service: radio service or data service ServiceIdentifier: string that uniquely identifies a radio service within the scope of an Authoritative FQDN service provider: organization providing RadioDNS Hybrid Radio applications string: zero or more characters in the range
37、0-9, a-z 3.2 Abbreviations For the purposes of the present document, the following abbreviations apply: AM Amplitude Modulation AMSS Amplitude Modulation Signalling System ASF Advanced Systems Format CNAME DNS Canonical NAME record DAB Digital Audio Broadcasting DNS Domain Name System DRM Digital Ra
38、dio MondialeECC Extended Country Code EId Ensemble Identifier FCC Federal Communications Commission FIG Fast Information Group FM Frequency ModulationFQDN Fully Qualified Domain Name GCC Global Country Code HTTP HyperText Transfer Protocol IBOC In-Band On-Channel IP Internet ProtocolPI Programme Ide
39、ntification RBDS Radio Broadcast Data System RDS Radio Data System SCIdS Service Component Identifier within a Service SI Service Information SId Service IdentifierETSI ETSI TS 103 270 V1.2.1 (2015-09)8 SPI Service and Programme Information TTL Time To Live URI Uniform Resource Identifier URL Unifor
40、m Resource Locator VHF Very High Frequency 4 Introduction It is possible to supplement uni-directional radio services with applications that can take advantage of bi-directional communication using the IP protocol. These applications may enhance the radio services with which they are associated with
41、 additional content or functionality, or enable interactivity. Radio devices should be aware of what IP delivered applications are available for each radio service it receives. Standardizing the methodology to locate these applications allows a manufacturer to support IP delivered applications direc
42、tly on the device. The present document standardizes the methodology for locating the Authoritative Fully Qualified Domain Name (FQDN) for radio services using the following radio systems: FM with RDS 8 or RBDS 9, DAB/DAB+ 1, DRM 2, AM with AMSS 3 and IBOC 4. The present document standardizes a meth
43、odology to locate applications based upon the existing DNS methodology 6. A RadioDNS FQDN is created from known broadcast parameters, and DNS is used to resolve this RadioDNS FQDN to a CNAME record containing the Authoritative FQDN for the service provider. The basis for this methodology broadly fol
44、lows that used to map E.164 format telephone numbers to domains 7. The present document also standardizes how to locate the Authoritative FQDN without the use of DNS lookup. The Authoritative FQDN for a service can be acquired through a series of processes, shown in figure 1. Figure 1: Process to ac
45、quire Authoritative FQDN for a service The service is also given a ServiceIdentifier parameter, which is unique within the scope of an Authoritative FQDN. ETSI ETSI TS 103 270 V1.2.1 (2015-09)9 The service may also be given a bearerURI parameter, which allows location of the service when placed in a
46、n SPI SI document. Clause 5 describes how to resolve the Authoritative FQDN and construct the ServiceIdentifier and bearerURI for broadcast radio services. Clause 6 describes how to resolve the Authoritative FQDN and ServiceIdentifier and construct the bearerURI for streaming radio services. Clause
47、7 describes how to resolve the Authoritative FQDN and ServiceIdentifier from an SPI SI document. 5 Authoritative FQDN resolution, and ServiceIdentifier and bearerURI construction for broadcast services 5.1 RadioDNS FQDN, ServiceIdentifier and bearerURI construction 5.1.1 FM with RDS/RBDS 5.1.1.1 RDS
48、/RBDS parameters The FM system supports identification of a radio service through transmission of meta-data by using RDS 8 or RBDS 9. The parameters are defined in table 1. Table 1: RDS/RBDS parameter description Parameter Description Value Status gcc The Global Country Code (GCC) of the country of
49、origin of the service (see annex A). 3-char hexadecimal mandatory pi Received RDS/RBDS Programme Identification (PI) code. 4-char hexadecimal mandatory frequency Frequency on which the service broadcast is received, formatted to 5 characters in units of 100 KHz. Frequencies below 100 MHz shall be supplied with a leading zero, for example 95,8 MHz would be represented as 09580, 104,9 MHz as 10 490. 5-char string mandatory NOTE: During the development of RadioDNS, it was permitted to compile the RadioDNS FQDN using the ISO 3611
