ETSI TS 102 759-2008 Digital Radio Mondiale (DRM) AMSS Distribution Interface (ASDI)《世界数字广播(DRM) AMSS分配接口(ASDI)(版本1 1 1)》.pdf
《ETSI TS 102 759-2008 Digital Radio Mondiale (DRM) AMSS Distribution Interface (ASDI)《世界数字广播(DRM) AMSS分配接口(ASDI)(版本1 1 1)》.pdf》由会员分享,可在线阅读,更多相关《ETSI TS 102 759-2008 Digital Radio Mondiale (DRM) AMSS Distribution Interface (ASDI)《世界数字广播(DRM) AMSS分配接口(ASDI)(版本1 1 1)》.pdf(20页珍藏版)》请在麦多课文档分享上搜索。
1、 ETSI TS 102 759 V1.1.1 (2008-10)Technical Specification Digital Radio Mondiale (DRM);AMSS Distribution Interface (ASDI)European Broadcasting Union Union Europenne de Radio-Tlvision EBUUER ETSI Draft ETSI TS 102 759 V1.1.1 (2008-10)2Reference DTS/JTC-DRM-18 Keywords broadcasting, digital, DRM, radio
2、, AM 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 Draft ETSI TS 102 759 V1.1.1 (2008-10)3Contents Intellectual Property Rights 4 Foreword . 4 Introduction 4 1 Scope 6 2 References 6 2.1 Norm
8、ative references . 6 2.2 Informative references 6 3 Definitions, symbols, abbreviations and conventions 7 3.1 Definitions 7 3.2 Symbols 8 3.3 Abbreviations . 8 3.4 Conventions 9 4 General description. 9 4.1 System overview 9 4.2 System architecture 9 5 TAG Items 10 5.1 Mandatory TAG Items . 11 5.1.1
9、 Protocol type and revision (*ptr) 11 5.1.2 ASDI Sequence Number (assn) 11 5.1.3 AMSS block (ablk) . 12 5.1.4 ASDI asynchronous reset (arst) 12 5.2 Optional TAG Items . 13 5.2.1 ASDI timestamp (atst) 13 5.3 Revision history 14 Annex A (informative): AMSS data structure . 15 Annex B (normative): ASDI
10、 Profiles 16 Annex C (normative): Muting Mechanism 17 C.1 Muting 17 Annex D (informative): ASDI Timestamps 18 D.1 Relationships 18 D.2 Rationale . 18 Annex E (normative): Physical presentation . 19 History 20 ETSI Draft ETSI TS 102 759 V1.1.1 (2008-10)4Intellectual Property Rights IPRs essential or
11、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 and non-members, and can be found in ETSI SR 000 314: “Intellectual Property Rights (IPRs); Essential, or potentially Essen
12、tial, 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:/webapp.etsi.org/IPR/home.asp). Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI.
13、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 present document. Foreword This Technical Specification (TS) has been produced by Joint Technical Committee (JTC
14、) Broadcast of the European Broadcasting Union (EBU), Comit Europen de Normalisation ELECtrotechnique (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 b
15、roadcasting 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 whos
16、e 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 European broadcasting area; its headquarters is in Geneva. European Broadcasting Union CH-1218 GRAND SACONNEX
17、(Geneva) Switzerland Tel: +41 22 717 21 11 Fax: +41 22 717 24 81 Introduction The frequency bands used for broadcasting below 30 MHz are: Low Frequency (LF) band - from 148,5 KHz to 283,5 KHz, in ITU Region 1 1 only; Medium Frequency (MF) band - from 526,5 KHz to 1 606,5 KHz, in ITU Regions 1 1 and
18、3 1 and from 525 KHz to 1 705 KHz in ITU Region 2 1; High Frequency (HF) bands - a set of individual broadcasting bands in the frequency range 2,3 MHz to 27 MHz, generally available on a Worldwide basis. These bands offer unique propagation capabilities that permit the achievement of: large coverage
19、 areas, whose size and location may be dependent upon the time of day, season of the year or period in the (approximately) 11 year sunspot cycle; portable and mobile reception with relatively little impairment caused by the environment surrounding the receiver. There is thus a desire to continue bro
20、adcasting in these bands, perhaps especially in the case of international broadcasting where the HF bands offer the only reception possibilities which do not also involve the use of local repeater stations. ETSI Draft ETSI TS 102 759 V1.1.1 (2008-10)5However, broadcasting services in these bands: us
21、e analogue techniques; are subject to limited quality; are subject to considerable interference as a result of the long-distance propagation mechanisms which prevail in this part of the frequency spectrum and the large number of users. As a direct result of the above considerations, there is a desir
22、e to effect a transfer to digital transmission and reception techniques in order to provide the increase in quality which is needed to retain listeners who, increasingly, have a wide variety of other programme reception media possibilities, usually already offering higher quality and reliability. In
23、 order to meet the need for a digital transmission system suitable for use in all of the bands below 30 MHz, the Digital Radio Mondiale (DRM) 2 consortium was formed in early 1998. The DRM consortium is a non-profit making body which seeks to develop and promote the use of the DRM system worldwide.
24、Its members include broadcasters, network providers, receiver and transmitter manufacturers and research institutes. More information is available from their website (http:/www.drm.org/). The AM Signalling System (AMSS) 3 adds a limited amount of service information to analogue broadcasts in the fre
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- ETSITS1027592008DIGITALRADIOMONDIALEDRMAMSSDISTRIBUTIONINTERFACEASDI 世界 数字 广播 DRMAMSS 分配 接口 ASDI 版本 111
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