1、 ETSI EN 300 401 V1.4.1 (2006-06)European Standard (Telecommunications series) Radio Broadcasting Systems;Digital Audio Broadcasting (DAB) to mobile,portable and fixed receiversEuropean Broadcasting Union Union Europenne de Radio-Tlvision EBUUER ETSI ETSI EN 300 401 V1.4.1 (2006-06) 2 Reference REN/
2、JTC-DAB-36 Keywords audio, broadcasting, DAB, data, digital, satellite, terrestrial 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 Gr
3、asse (06) N 7803/88 Important notice Individual copies of the present document 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
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8、s. ETSI ETSI EN 300 401 V1.4.1 (2006-06) 3 Contents Intellectual Property Rights8 Foreword.8 1 Scope 10 2 References 10 3 Definitions, abbreviations, mathematical symbols, C-language mathematical symbols and conventions.11 3.1 Definitions11 3.2 Abbreviations .15 3.3 Mathematical symbols17 3.3.1 Arit
9、hmetic operators .17 3.3.2 Logical and set operators 17 3.3.3 Functions 18 3.3.4 Constants 18 3.4 C-language mathematical symbols.18 3.4.1 Arithmetic operators .18 3.4.2 Logical operators 18 3.4.3 Relational operators 18 3.4.4 Assignment .18 3.4.5 Mnemonics .19 3.4.6 Method of describing bit stream
10、syntax19 3.5 Convention .20 4 Basic DAB system description.20 4.1 Transport mechanisms20 4.2 Multiplex Configuration Information (MCI)23 4.3 Audio coding23 4.4 Data features.24 4.5 Conditional Access (CA)24 4.6 Energy dispersal .24 4.7 Convolutional coding .24 4.8 Time interleaving .24 4.9 Common In
11、terleaved Frame (CIF) .24 4.10 DAB transmission signal25 4.11 Radio frequency parameters .25 4.12 Main DAB system characteristics 25 5 Transport mechanisms27 5.1 Introduction 27 5.2 Fast Information Channel (FIC) .29 5.2.1 Fast Information Block (FIB) .29 5.2.2 Fast Information Group (FIG) 30 5.2.2.
12、1 MCI and SI: FIG type 0 data field.30 5.2.2.2 Labels: FIG type 1 and FIG type 2 data fields 32 5.2.2.2.1 FIG type 132 5.2.2.2.2 FIG type 233 5.2.2.3 FIDC: FIG type 5 data field 34 5.2.2.4 CA: FIG type 6 data field34 5.3 Main Service Channel (MSC) 34 5.3.1 Stream mode .35 5.3.2 Packet mode - network
13、 level.35 5.3.2.1 Packet header 35 5.3.2.2 Packet data field 36 5.3.2.3 Packet CRC.36 5.3.3 Packet mode - data group level.36 5.3.3.1 MSC data group header.37 ETSI ETSI EN 300 401 V1.4.1 (2006-06) 4 5.3.3.2 Session header.38 5.3.3.3 MSC data group data field 39 5.3.3.4 MSC data group CRC .39 5.3.4 I
14、nterrelation of network and transport level in packet mode 39 5.3.5 FEC for MSC packet mode.39 5.3.5.1 FEC frame.40 5.3.5.2 Transport of RS data .41 5.3.5.3 Receiver considerations 42 5.4 Transport of Service Information in the Auxiliary Information Channel.42 5.5 Extended labels 43 5.5.1 Structure
15、of the extended label data field43 5.5.2 Label definition.44 5.5.3 Character definition 44 5.5.4 Segmentation 46 5.5.5 Receiver considerations 46 6 Multiplex Configuration Information (MCI)47 6.1 Introduction 47 6.2 Sub-channel organization .48 6.2.1 Basic sub-channel organization 48 6.2.2 FEC sub-c
16、hannel organization52 6.3 Service organization.52 6.3.1 Basic service and service component definition .52 6.3.2 Service component in packet mode with or without Conditional Access.55 6.3.3 Service component with Conditional Access in stream mode or FIC.56 6.3.4 Service component “hooks“56 6.3.5 Ser
17、vice component global definition 56 6.4 Ensemble information 58 6.5 Multiplex re-configuration .59 7 Audio coding60 7.1 Audio encoding 61 7.1.1 Analysis sub-band filter 61 7.1.2 Scale Factor calculation63 7.1.3 Coding of Scale Factors63 7.1.4 Coding of Scale Factor Selection Information64 7.1.5 Psyc
18、hoacoustic model.65 7.1.6 Bit allocation.65 7.1.7 Bit allocation coding.66 7.1.8 Quantization and coding of sub-band samples68 7.1.9 Formatting of the audio bit stream70 7.2 Semantics of the audio bit stream.71 7.2.1 MPEG Audio Layer II bit stream71 7.2.1.1 Audio sequence .71 7.2.1.2 Audio frame 71
19、7.2.1.3 Audio frame header.71 7.2.1.4 Error check74 7.2.1.5 Audio data.74 7.2.1.6 Ancillary data75 7.2.2 DAB audio bit stream .75 7.2.2.1 DAB audio sequence.75 7.2.2.2 DAB audio frame 75 7.2.2.3 DAB audio frame header 76 7.2.2.4 Error check76 7.2.2.5 Audio data.76 7.2.2.6 Audio stuffing bits 76 7.2.
20、2.7 Extended Programme Associated Data (X-PAD) .76 7.2.2.8 Scale Factor Error Check (ScF-CRC) .77 7.2.2.9 Fixed Programme Associated Data (F-PAD)77 7.3 Audio bit stream syntax79 7.3.1 ISO/IEC 11172-3 and ISO/IEC 13818-3 Layer II bit stream syntax 79 7.3.1.1 Audio sequence .79 ETSI ETSI EN 300 401 V1
21、.4.1 (2006-06) 5 7.3.1.2 Audio frame 79 7.3.1.3 Header.79 7.3.1.4 Error check80 7.3.1.5 Audio data.80 7.3.1.6 Ancillary data81 7.3.2 DAB audio bit stream syntax81 7.3.2.1 DAB audio sequence.81 7.3.2.2 DAB audio frame 81 7.3.2.3 DAB audio frame header 81 7.3.2.4 Error check81 7.3.2.5 Audio data.81 7.
22、3.2.6 Audio stuffing bits 82 7.3.2.7 Extended Programme Associated Data .82 7.3.2.8 Scale factor error check.82 7.3.2.9 Fixed Programme Associated Data .82 7.4 Programme Associated Data (PAD).82 7.4.1 Coding of F-PAD83 7.4.1.1 Dynamic Range Control data 86 7.4.2 Structure of X-PAD 86 7.4.2.1 Short X
23、-PAD.88 7.4.2.2 Variable size X-PAD.88 7.4.3 Application types 89 7.4.4 Contents indicator.90 7.4.4.1 Contents indicator in short X-PAD .90 7.4.4.2 Contents indicator in variable size X-PAD .90 7.4.5 Applications in X-PAD.91 7.4.5.1 MSC data groups in X-PAD .91 7.4.5.1.1 X-PAD data group for data gr
24、oup length indicator .91 7.4.5.1.2 X-PAD data group for MSC data group 91 7.4.5.1.3 Transport of MSC data groups in short X-PAD 92 7.4.5.1.4 Transport of MSC data groups in variable-sized X-PAD92 7.4.5.2 Dynamic label .92 8 Data features.95 8.1 Service Information (SI).95 8.1.1 Introduction.95 8.1.2
25、 Service component language 95 8.1.3 Time and country identifier 96 8.1.3.1 Date and time (d 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:/webapp.etsi.
26、org/IPR/home.asp). 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, essen
27、tial to the present document. Foreword This European Standard (Telecommunications series) 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 I
28、nstitute (ETSI). NOTE: 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 re
29、sponsible 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 member
30、s 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, to
31、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 7, for DAB (see note) which now has worldwide acceptance. The members of the Eureka Project 147 are drawn from broadcasting organiz
32、ations and telecommunication providers together with companies from the professional and consumer electronics industry. NOTE: DAB is a registered trademark owned by one of the Eureka Project 147 partners. The present document on Digital Audio Broadcasting (DAB) is based on the overall system and ser
33、vice requirements adopted by the ITU-R Recommendation BS.774 1 and ITU-R Recommendation BO.789 2. The DAB system has been recommended by the ITU-R, as Digital System A, for terrestrial and satellite delivery. The audio coding algorithm used by the DAB system has been subject to the standardization p
34、rocess within the ISO/Moving Pictures Expert Group (MPEG), see ISO/IEC 11172-3 3 and ISO/IEC 13818-3 11. The layered ISO open system interconnect model ISO 7498-1 4 has been used to the extent possible, and interfacing to information technology equipment and communications networks has been taken in
35、to account where applicable. The present document defines the nature and content of the transmitted DAB signal with reference to the conceptual emission part. The emphasis is given to the normative elements. Informative elements are included only to the extent necessary to provide interpretative gui
36、dance to the DAB system users and equipment manufacturers. The DAB system is a novel sound broadcasting system intended to supersede the existing analogue amplitude and frequency modulation systems. It is a rugged, yet highly spectrum and power efficient sound and data broadcasting system. It has be
37、en designed for terrestrial and satellite as well as for hybrid and mixed delivery. The DAB system has been publicly demonstrated on a number of occasions during its development. It has been subject to extensive field tests and computer simulations in Europe and elsewhere. It is now in regular servi
38、ce in many European countries and throughout the world. In 1995, the European DAB Forum (EuroDab) was established to pursue the introduction of DAB services in a concerted manner world-wide, and it became the World DAB Forum (World DAB) in 1997. ETSI ETSI EN 300 401 V1.4.1 (2006-06) 9 With respect t
39、o the previous version of EN 300 401 published in May 2001, the present document contains several refinements to the Eureka 147 DAB system. These refinements were performed and agreed by the World DAB Forum and include the following areas: backward compatible changes to PAD to provide greater flexib
40、ility; addition of Forward Error Correction mechanisms for packet mode service components; addition of extended labels and character definition; removal of some obsolete service information features; conditional access details moved to a separate ETSI document. National transposition dates Date of a
41、doption of this EN: 26 May 2006 Date of latest announcement of this EN (doa): 31 August 2006 Date of latest publication of new National Standard or endorsement of this EN (dop/e): 28 February 2007 Date of withdrawal of any conflicting National Standard (dow): 28 February 2007 ETSI ETSI EN 300 401 V1
42、.4.1 (2006-06) 101 Scope The present document establishes a broadcasting standard for the Digital Audio Broadcasting (DAB) system designed for delivery of high-quality digital audio programme and data services for mobile, portable and fixed reception from terrestrial or satellite transmitters in the
43、 Very High Frequency (VHF)/Ultra High Frequency (UHF) frequency bands as well as for distribution through cable networks. The DAB system is designed to provide spectrum and power efficient techniques in terrestrial transmitter network planning, known as the Single Frequency Network (SFN) and the gap
44、-filling technique. The DAB system is suitable for satellite as well as hybrid/mixed terrestrial/satellite broadcasting, using a simple, nearly omni-directional receiving antenna. The DAB system meets the required sharing criteria with other radiocommunication services. The present document defines
45、the DAB transmission signal. It includes the coding algorithms for audio, multiplexing of audio programme and data services, channel coding and modulation. A limited range of supplementary services associated with programme services is defined. Provision is also made for transmission of additional d
46、ata services which may be programme related or not, within the limit of the total system capacity. The present document provides information on the system configuration which includes information about the ensembles, services, service components and linking of them. Provision is made for a compatibl
47、e cross-reference to existing Frequency Modulation (FM) services and Amplitude Modulation (AM) services. The present document describes the nominal characteristics of the emitted DAB signal. The aspects related to the receiver design are outside the scope of the present document. Hardware implementa
48、tion considerations are not covered. 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 and/or edition number or version number) or non-specifi
49、c. For a specific reference, subsequent revisions do not apply. For a non-specific reference, the latest version applies. Referenced documents which are not found to be publicly available in the expected location might be found at http:/docbox.etsi.org/Reference. 1 ITU-R Recommendation BS.774 (1994): “Digital sound broadcasting to vehicular, portable and fixed receivers using terrestrial transmitters in the VHF/UHF bands“. 2 ITU-R Recommendation BO.789 (1994): “Digital sound broadcasting to vehicular, portable and fixed receivers for BSS
