1、 ETSI ES 201 980 V4.1.2 (2017-04) Digital Radio Mondiale (DRM); System Specification ETSI STANDARD ETSI ETSI ES 201 980 V4.1.2 (2017-04) 2 Reference RES/JTC-DRM-34 Keywords broadcasting, digital, DRM, radio ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 F
2、ax: +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 electronic ve
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7、dia. European Telecommunications Standards Institute 2017. European Broadcasting Union 2017. 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 M
8、embers and of the 3GPP Organizational Partners. oneM2M logo is protected for the benefit of its Members GSM and the GSM logo are Trade Marks registered and owned by the GSM Association. ETSI ETSI ES 201 980 V4.1.2 (2017-04) 3 Contents Intellectual Property Rights 8g3Foreword . 8g3Modal verbs termino
9、logy 8g3Introduction 8g31 Scope 10g32 References 10g32.1 Normative references . 10g32.2 Informative references 11g33 Definitions, symbols, abbreviations and conventions 11g33.1 Definitions 11g33.2 Symbols 12g33.3 Abbreviations . 12g33.4 Conventions 14g34 General characteristics . 14g34.1 System over
10、view 14g34.2 System architecture 15g34.3 Audio source coding . 17g34.4 Transmission modes . 18g34.4.1 Signal bandwidth related parameters 18g34.4.2 Transmission efficiency related parameters 18g34.4.2.0 General 18g34.4.2.1 Coding rates and constellations . 18g34.4.2.2 OFDM parameter set . 18g35 Sour
11、ce coding modes 19g35.1 Overview 19g35.1.0 Introduction. 19g35.1.1 Extended HE-AAC audio coding (xHE-AAC) . 20g35.1.2 AAC audio coding 21g35.1.3 MPEG Surround coding 22g35.2 Audio super framing . 22g35.3 xHE-AAC coding . 24g35.3.1 xHE-AAC . 24g35.3.1.0 Introduction . 24g35.3.1.1 xHE-AAC audio super
12、frame 24g35.3.1.2 xHE-AAC audio frame . 26g35.3.1.3 Transport of xHE-AAC audio frames within the payload section 26g35.3.2 xHE-AAC decoder configuration . 28g35.3.3 xHE-AAC error concealment . 31g35.3.3.0 Introduction . 31g35.3.3.1 Frequency Domain coding (AAC based coding and TCX) . 31g35.3.3.2 ACE
13、LP 32g35.3.3.3 SBR . 32g35.3.3.4 MPS212 parametric stereo 35g35.3.3.5 MDCT based Complex Prediction 35g35.3.3.6 Forward Aliasing Cancellation 35g35.3.4 xHE-AAC + MPS . 35g35.4 AAC coding 36g35.4.1 AAC 36g35.4.2 AAC + SBR 38g35.4.3 Parametric Stereo coding 39g35.4.4 AAC error concealment 40g35.4.4.0
14、Introduction . 40g35.4.4.1 Interpolation of one corrupt frame 40g3ETSI ETSI ES 201 980 V4.1.2 (2017-04) 4 5.4.4.2 Fade-out and fade-in . 41g35.4.4.3 Concealment granularity . 41g35.4.4.4 SBR error concealment . 41g35.4.4.5 Parametric Stereo concealment . 44g35.4.5 AAC + MPS 44g36 Multiplex definitio
15、n 46g36.1 Introduction 46g36.2 Main Service Channel (MSC) 46g36.2.1 Introduction. 46g36.2.2 Structure 46g36.2.3 Building the MSC . 46g36.2.3.0 Introduction . 46g36.2.3.1 Multiplex frames . 47g36.2.3.2 Hierarchical frames . 47g36.2.4 Reconfiguration 47g36.3 Fast Access Channel (FAC) . 47g36.3.1 Intro
16、duction. 47g36.3.2 Structure 47g36.3.3 Channel parameters. 48g36.3.4 Service parameters 51g36.3.5 CRC 52g36.3.6 FAC repetition 53g36.4 Service Description Channel (SDC) . 53g36.4.1 Introduction. 53g36.4.2 Structure 53g36.4.3 Data entities 54g36.4.3.0 Introduction . 54g36.4.3.1 Multiplex description
17、data entity - type 0 . 55g36.4.3.2 Label data entity - type 1 . 56g36.4.3.3 Conditional access parameters data entity - type 2 . 56g36.4.3.4 Alternative frequency signalling: Multiple frequency network information data entity - type 3 57g36.4.3.5 Alternative frequency signalling: Schedule definition
18、 data entity - type 4 . 59g36.4.3.6 Application information data entity - type 5 . 60g36.4.3.7 Announcement support and switching data entity - type 6 . 61g36.4.3.8 Alternative frequency signalling: Region definition data entity - type 7 63g36.4.3.9 Time and date information data entity - type 8 . 6
19、4g36.4.3.10 Audio information data entity - type 9 64g36.4.3.11 FAC channel parameters data entity - type 10 67g36.4.3.12 Alternative frequency signalling: Other services data entity - type 11 68g36.4.3.13 Language and country data entity - type 12 72g36.4.3.14 Alternative frequency signalling: deta
20、iled region definition data entity - type 13 . 72g36.4.3.15 Packet stream FEC parameters data entity - type 14 . 73g36.4.3.16 Extension data entity - type 15 74g36.4.3.16.0 General 74g36.4.3.16.1 Service linking information data entity - type 15, extension 0 74g36.4.3.16.2 Other data entity type 15
21、extensions 75g36.4.4 Summary of data entity characteristics . 76g36.4.5 Changing the content of the SDC . 77g36.4.6 Signalling of reconfigurations. 78g36.4.6.0 Introduction . 78g36.4.6.1 Service reconfigurations 78g36.4.6.2 Channel reconfigurations 79g36.5 Text message application . 79g36.6 Packet m
22、ode . 81g36.6.0 Introduction. 81g36.6.1 Packet structure . 81g36.6.1.0 Introduction . 81g36.6.1.1 Header . 81g36.6.1.2 Data field . 82g36.6.2 Asynchronous streams 82g36.6.3 Files 82g3ETSI ETSI ES 201 980 V4.1.2 (2017-04) 5 6.6.4 Choosing the packet length . 83g36.6.5 Forward Error Correction (FEC) f
23、or packet mode streams . 83g36.6.5.0 Introduction . 83g36.6.5.1 Encoding of FEC Packets 83g36.6.5.2 Transport of FEC packets 86g36.6.5.3 Receiver considerations 87g37 Channel coding and modulation . 87g37.1 Introduction 87g37.2 Transport multiplex adaptation and energy dispersal . 88g37.2.1 Transpor
24、t multiplex adaptation . 88g37.2.1.0 General 88g37.2.1.1 MSC 88g37.2.1.2 FAC . 90g37.2.1.3 SDC . 91g37.2.2 Energy dispersal 91g37.3 Coding 92g37.3.1 Multilevel coding 92g37.3.1.0 Introduction . 92g37.3.1.1 Partitioning of bitstream in SM . 94g37.3.1.2 Partitioning of bitstream in HMsym 95g37.3.1.3 P
25、artitioning of bitstream in HMmix 96g37.3.2 Component code . 97g37.3.3 Bit interleaving . 103g37.3.3.0 Introduction . 103g37.3.3.1 FAC . 104g37.3.3.2 SDC . 104g37.3.3.3 MSC 104g37.4 Signal constellations and mapping . 106g37.5 Application of coding to the channels 110g37.5.1 Coding the MSC . 110g37.
26、5.1.0 Introduction . 110g37.5.1.1 SM . 110g37.5.1.2 HMsym . 111g37.5.1.3 HMmix 112g37.5.2 Coding the SDC 112g37.5.3 Coding the FAC 113g37.6 MSC cell interleaving . 113g37.7 Mapping of MSC cells on the transmission super frame structure . 115g38 Transmission structure . 116g38.1 Transmission frame st
27、ructure and robustness modes . 116g38.2 Propagation-related OFDM parameters 118g38.3 Signal bandwidth related parameters 118g38.3.1 Parameter definition 118g38.3.2 Simulcast transmission . 120g38.4 Pilot cells 120g38.4.1 Functions and derivation . 120g38.4.2 Frequency references 120g38.4.2.0 Introdu
28、ction . 120g38.4.2.1 Cell positions. 121g38.4.2.2 Cell gains and phases 121g38.4.3 Time references 122g38.4.3.0 Introduction . 122g38.4.3.1 Cell positions and phases 122g38.4.3.2 Cell gains 125g38.4.4 Gain references . 125g38.4.4.0 Introduction . 125g38.4.4.1 Cell positions. 125g38.4.4.2 Cell gains
29、125g38.4.4.3 Cell phases 126g38.4.4.3.0 Intorduction . 126g3ETSI ETSI ES 201 980 V4.1.2 (2017-04) 6 8.4.4.3.1 Procedure for calculation of cell phases 126g38.4.4.3.2 Robustness mode A . 127g38.4.4.3.3 Robustness mode B . 127g38.4.4.3.4 Robustness mode C . 127g38.4.4.3.5 Robustness mode D . 128g38.4.
30、4.3.6 Robustness mode E 128g38.4.5 AFS references 129g38.4.5.0 Introduction . 129g38.4.5.1 Cell positions and phases 129g38.4.5.2 Cell gains 130g38.5 Control cells . 130g38.5.1 General 130g38.5.2 FAC cells 131g38.5.2.1 Cell positions. 131g38.5.2.2 Cell gains and phases 133g38.5.3 SDC cells 133g38.5.
31、3.1 Cell positions. 133g38.5.3.2 Cell gains and phases 134g38.6 Data cells 134g38.6.1 Cell positions 134g38.6.2 Cell gains and phases 134g3Annex A (informative): Simulated system performance . 135g3Annex B (informative): Definition of channel profiles 136g3B.1 Robustness modes A, B, C and D 136g3B.2
32、 Robustness mode E 138g3Annex C (informative): Example of mapping of logical frames to multiplex frames . 142g3Annex D (normative): Calculation of the CRC word . 144g3Annex E (informative): RF protection ratios . 146g3Annex F (informative): Alternative Frequency and announcement signalling 150g3F.0
33、Introduction 150g3F.1 Possibilities of the Alternative Frequency Signalling feature 150g3F.2 Possibilities of the announcement feature 151g3F.3 SDC data entities overview for Alternative Frequency and announcement signalling 153g3F.4 SDC data entities and setup for alternative frequency signalling .
34、 154g3F.5 SDC data entities and setup for announcement 154g3F.6 Alternative frequency and announcement signalling - coding example . 156g3Annex G (informative): Guidelines for receiver implementation . 159g3G.0 Introduction 159g3G.1 Alternative Frequency checking and Switching (AFS) 159g3G.2 Station
35、 buttons for DRM services 160g3G.3 Seamless Alternative Frequency checking and Switching (AFS) 161g3G.4 Character sets . 163g3Annex H (informative): Service capacity and bit rates . 164g3Annex I: (void) 165g3ETSI ETSI ES 201 980 V4.1.2 (2017-04) 7 Annex J (informative): Numbers of input bits 166g3An
36、nex K (informative): Simulcast transmission, alternate sources, and enhancement signalling . 171g3Annex L (informative): Pilot reference illustrations . 174g3Annex M (informative): MSC configuration examples 180g3Annex N: (void) 183g3Annex O (normative): Interpretation of schedules for Alternative F
37、requency Signalling 184g3Annex P (informative): Transmit diversity 186g3Annex Q (informative): Seamless reconfiguration 187g3Annex R (informative): Seamless receiver switching between DRM, DAB, AM and FM broadcasts . 189g3R.1 Overview 189g3R.2 General network timing considerations 189g3R.3 Network s
38、ynchronization rules . 190g3R.4 Receiver implementation rules . 192g3R.5 Definition of broadcast signal time references . 192g3Annex S (informative): Combined transmission of DRM and FM . 193g3Annex T (informative): Assignment of Service identifiers . 194g3T.0 Introduction 194g3T.1 Domestic services
39、 . 194g3T.2 International services 194g3Annex U (informative): Bibliography . 195g3History 196g3ETSI ETSI ES 201 980 V4.1.2 (2017-04) 8 Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to these ess
40、ential 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 Essential, IPRs notified to ETSI in respect of ETSI standards“, which is available from the ETSI Secretariat. Latest updat
41、es are available on the ETSI Web server (https:/ipr.etsi.org/). 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 serve
42、r) which are, or may be, or may become, essential to the present document. Foreword This ETSI Standard (ES) has been produced by Joint Technical Committee (JTC) Broadcast of the European Broadcasting Union (EBU), Comit Europen de Normalisation ELECtrotechnique (CENELEC) and the European Telecommunic
43、ations 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 broadcasting and related fields. Since 1995 the JTC Broadcast became a tripartite body by including in the Memorandum of Understanding also CE
44、NELEC, 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-exchange domains. The EBU
45、 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 Modal verbs terminology In the present document “shall“, “shall not“, “shoul
46、d“, “should not“, “may“, “need not“, “will“, “will not“, “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. Int
47、roduction 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 3 1 and from 525 kHz to 1 705 kHz in ITU Region 2 1; High Frequency (H
48、F) band: 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 areas, whose size and location may be dependent upon the time of day, s
49、eason of the year or period in the (approximately) 11 year sunspot cycle; ETSI ETSI ES 201 980 V4.1.2 (2017-04) 9 portable and mobile reception with relatively little impairment caused by the environment surrounding the receiver. There is thus a desire to continue broadcasting 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. However, broadcasting services in these bands: use analogue techniques; are subje
