1、 ETSI EN 301 790 V1.5.1 (2009-05)European Standard (Telecommunications series) Digital Video Broadcasting (DVB);Interaction channel for satellite distribution systemsEuropean Broadcasting Union Union Europenne de Radio-Tlvision EBUUER ETSI ETSI EN 301 790 V1.5.1 (2009-05)2 Reference REN/JTC-DVB-230
2、Keywords broadcasting, DVB, interaction, satellite 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 not
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5、n the current status of this and other ETSI documents 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 b
6、e reproduced except as authorized by written permission. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2009. European Broadcasting Union 2009. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTM, TIPHONTM, the TIPHON log
7、o and the ETSI logo are Trade Marks of ETSI registered 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. LTE is a Trade Mark of ETSI currently being registered for the benefit of its Members and of the 3G
8、PP Organizational Partners. GSM and the GSM logo are Trade Marks registered and owned by the GSM Association. ETSI ETSI EN 301 790 V1.5.1 (2009-05)3 Contents Intellectual Property Rights8 Foreword.8 1 Scope 9 2 References 9 2.1 Normative references .9 2.2 Informative references11 3 Definitions, symb
9、ols and abbreviations .11 3.1 Definitions11 3.2 Symbols12 3.3 Abbreviations .12 4 Reference models for satellite interactive networks in DVB .14 4.1 Protocol stack model 14 4.2 System model .15 4.3 Reference model of the Satellite Interactive Network16 4.4 Dynamic connectivity.18 5 Forward link .19
10、5.1 Spectrum spreading in the forward link (Mobile Opt) .19 6 Return link base-band physical layer specification and multiple access definition .20 6.1 RCST synchronization .21 6.1.1 Timing control 21 6.1.2 Carrier synchronization.22 6.1.3 Burst synchronization .22 6.1.4 Symbol clock synchronization
11、22 6.2 Burst format22 6.2.1 Traffic (TRF) burst formats 22 6.2.1.1 ATM TRF burst 23 6.2.1.2 Optional MPEG2-TS TRF burst .23 6.2.2 Synchronization and acquisition burst formats.23 6.2.2.1 Synchronization (SYNC) burst format24 6.2.2.2 Acquisition (ACQ) burst .24 6.2.3 Common Signalling Channel (CSC) b
12、urst format 25 6.2.4 Bit numbering and interpretation27 6.2.5 Transmission order .27 6.3 Randomization for energy dispersal.28 6.4 Coding 28 6.4.1 CRC error detection code .28 6.4.2 Reed-Solomon outer coding .29 6.4.3 Convolutional inner coding 29 6.4.4 Turbo code30 6.4.4.1 Description of the turbo
13、code permutation31 6.4.4.2 Determination of the circulation states32 6.4.4.3 Rates and puncturing map.32 6.4.4.4 Order of transmission and mapping to QPSK constellation33 6.4.5 Countermeasures for non-line-of-sight channels (Mobile Opt) 34 6.4.5.1 LL-FEC Frame35 6.4.5.1.1 Filling of Application Data
14、 Table35 6.4.5.1.2 Generation of FEC Data Table 36 6.4.5.1.2.1 Reed-Solomon code.36 6.4.5.1.2.2 Raptor code37 6.4.5.2 Carriage of LL-FEC frames 37 6.4.5.3 Carriage of application data in transport streams 37 6.4.5.4 Carriage of parity data in transport streams 38 6.4.5.4.1 Carriage of Reed-Solomon c
15、ode parity data38 ETSI ETSI EN 301 790 V1.5.1 (2009-05)4 6.4.5.4.2 Carriage of Raptor code parity data.38 6.4.5.5 Non-line-of-sight RCST identifier 39 6.4.5.6 Real-time parameters 39 6.4.5.7 Provisions for carrying LL-FEC frames in generic streams40 6.4.5.7.1 LL-FEC identifier location for GSE-FEC s
16、treams 40 6.4.5.7.2 Carriage of application data over GSE-FEC streams 40 6.4.5.7.3 Carriage of parity data over GSE-FEC streams.42 6.5 Modulation .44 6.5.1 Bit mapping to QPSK constellation44 6.5.2 Baseband shaping and quadrature modulation45 6.5.3 EIRP control .45 6.5.4 Guard time 45 6.5.5 Spectrum
17、 spreading in the return link (Mobile Opt).45 6.6 MAC messages.47 6.6.1 Methods based on the Satellite Access Control (SAC) field 47 6.6.1.1 SAC field composition47 6.6.1.1.1 Mobility Control Message field composition (Mobile Req)50 6.6.1.2 Prefix method mechanism.53 6.6.1.3 Mini-slot method.53 6.6.
18、1.4 Contention based mini-slot method.53 6.6.1.5 MPEG Adaptation Field Method (MPAF) (option) 53 6.6.2 Data Unit Labelling Method (DULM)54 6.6.2.1 DULM with ATM-formatting.55 6.6.2.2 DULM with MPEG-formatting.57 6.7 Multiple access.59 6.7.1 MF-TDMA .59 6.7.1.1 Fixed MF-TDMA59 6.7.1.2 Dynamic MF-TDMA
19、 (Optional).59 6.7.1.3 Frequency range60 6.7.2 Segmentation of the return link capacity 60 6.7.2.1 Superframes 60 6.7.2.2 Frames.61 6.7.2.3 Timeslots.61 6.8 Capacity request categories 62 6.8.1 Continuous Rate Assignment (CRA)62 6.8.2 Rate Based Dynamic Capacity (RBDC) .62 6.8.3 Volume Based Dynamic
20、 Capacity (VBDC) .62 6.8.4 Absolute Volume Based Dynamic Capacity (AVBDC) .62 6.8.5 Free Capacity Assignment (FCA).63 7 Synchronization procedures .63 7.1 Overall events sequencing63 7.2 Initial synchronization procedure .65 7.3 Logon procedure 66 7.3a Logon in the presence of a large timing uncerta
21、inty (Mobile Req)67 7.4 Coarse synchronization procedure (optional).67 7.5 Fine synchronization procedure (optional).68 7.6 Synchronization maintenance procedure69 7.7 Logoff procedure69 7.7.1 General69 7.7.2 Normal 69 7.7.3 Abnormal 69 8 Control and management70 8.1 Protocol stack .70 8.1.1 RCST Ty
22、pe A (IP)70 8.1.2 Optional RCST Type B (Native ATM).72 8.2 RCST addressing72 8.3 Forward link signalling 73 8.3.1 General SI tables.73 8.3.1.1 Superframe Composition Table (SCT)73 8.3.1.2 Frame Composition Table (FCT)73 ETSI ETSI EN 301 790 V1.5.1 (2009-05)5 8.3.1.3 Time-Slot Composition Table (TCT)
23、73 8.3.1.4 Satellite Position Table (SPT).73 8.3.1.5 Correction Message Table (CMT) 74 8.3.1.6 Terminal Burst Time Plan (TBTP)74 8.3.2 Terminal Information Message (TIM)74 8.3.3 PCR Insertion TS Packet 74 8.3.4 Summary.74 8.3.5 Repetition rates .75 8.4 Return link signalling .75 8.4.1 RCST synchroni
24、zation and Identification messages.75 8.4.2 Configuration parameters between RCST and NCC (optional)76 8.4.3 Other messages for network management (optional)76 8.4.4 Burst time plan exchange77 8.5 Coding of SI for forward link signalling 77 8.5.1 Introduction.77 8.5.2 SI table mechanism.77 8.5.3 DSM
25、-CC section mechanism77 8.5.4 Coding of PID and table_id fields 78 8.5.5 Table definitions .78 8.5.5.1 Standard section headers .78 8.5.5.1.1 SI section header79 8.5.5.1.2 DSM-CC private section header80 8.5.5.2 Superframe Composition Table (SCT)81 8.5.5.3 Frame Composition Table (FCT)83 8.5.5.4 Tim
26、eslot Composition Table (TCT)84 8.5.5.5 Satellite Position Table (SPT).89 8.5.5.6 PCR Insertion Transport Stream packet90 8.5.5.6.1 TS packet format .90 8.5.5.6.2 Adaptation field.90 8.5.5.6.3 Optional payload field .91 8.5.5.7 Terminal Burst Time Plan (TBTP)92 8.5.5.8 Terminal Information Message (
27、TIM) 93 8.5.5.9 Correction Message Table (CMT) 96 8.5.5.10 Descriptor coding97 8.5.5.10.1 Descriptor identification and location .97 8.5.5.10.2 Network Layer Info descriptor (optional)97 8.5.5.10.3 Correction Message descriptor 98 8.5.5.10.4 Logon Initialize descriptor.100 8.5.5.10.5 ACQ Assign desc
28、riptor102 8.5.5.10.6 SYNC Assign descriptor .103 8.5.5.10.7 Encrypted Logon ID descriptor .104 8.5.5.10.8 Echo Value descriptor .104 8.5.5.10.9 Linkage descriptor (private data).105 8.5.5.10.10 RCS content descriptor106 8.5.5.10.11 Satellite forward link descriptor 107 8.5.5.10.12 Satellite return l
29、ink descriptor .110 8.5.5.10.13 Table Update descriptor.111 8.5.5.10.14 Contention control descriptor 112 8.5.5.10.15 Correction Control descriptor112 8.5.5.10.16 Forward Interaction Path descriptor 113 8.5.5.10.17 Return Interaction Path descriptor.114 8.5.5.10.18 Connection Control descriptor (opt
30、ional)116 8.5.5.10.19 Mobility Control descriptor (Mobile Req) 117 8.5.5.10.20 Correction Message Extension descriptor (Mobile Req).117 8.5.5.10.21 Return Transmission Modes (RTM) descriptor (Mobile Opt).118 8.5.5.10.22 Mesh logon initialize descriptor (Optional).120 8.5.5.10.23 Implementation type
31、descriptor (Optional)122 8.5.5.10.24 LL_FEC_identifier_descriptor (optional)124 8.5.5.11 Accessing of the forward link signalling.125 8.5.5.12 RCS Map Table.129 8.5.5.13 Transmission Mode Support Table .130 8.5.5.14 LL-FEC parity data table 131 ETSI ETSI EN 301 790 V1.5.1 (2009-05)6 8.6 Mobility man
32、agement (Mobile Req) 133 8.7 Interference avoidance for mobile terminals (Mobile Req)134 8.7.1 Off-axis EIRP emission density134 8.7.2 Power Flux Density at the surface of the earth .135 8.7.3 Fault conditions 135 9 Security, identity, encryption .135 9.1 Authentication 135 9.2 Forward link .136 9.3
33、 Return link136 9.4 Security (optional)136 9.4.1 Cryptographic primitives 136 9.4.1.1 Public key exchange137 9.4.1.2 Hashing .137 9.4.1.3 Encryption.137 9.4.1.4 Pseudo-random numbers.139 9.4.1.5 Padding .139 9.4.2 Main Key Exchange (MKE) .140 9.4.3 Quick Key Exchange (QKE) 140 9.4.4 Explicit Key Exc
34、hange (EKE)141 9.4.5 Key derivation 141 9.4.6 Data stream processing .141 9.4.6.1 Payload streams.141 9.4.6.2 Data encryption.142 9.4.6.3 Encryption flags 142 9.4.7 Security establishment 143 9.4.8 Persistent state variables .144 9.4.8.1 Guaranteed delivery 144 9.4.9 Security MAC messages.145 9.4.9.
35、1 Security Sign-On .145 9.4.9.2 Security Sign-On Response .146 9.4.9.3 Main Key Exchange 148 9.4.9.4 Main Key Exchange Response 148 9.4.9.5 Quick Key Exchange .149 9.4.9.6 Quick Key Exchange Response.149 9.4.9.7 Explicit Key Exchange 150 9.4.9.8 Explicit Key Exchange Response151 9.4.9.9 Wait .151 9.
36、5 Transport of security messages (optional)151 10 Continuous carrier operation (Mobile Opt)153 10.1 Modes of operation.153 10.2 Forward link .154 10.3 RCST synchronisation154 10.4 Return link154 10.4.1 Modulation and coding .155 10.4.1.1 Carrier operation .155 10.4.1.2 Bit mapping to pi/2-BPSK const
37、ellation 155 10.4.1.3 Physical layer scrambling .155 10.4.1.4 Physical layer header.156 10.4.1.5 Very short frame size 156 10.4.2 Spectrum spreading for continuous return link carriers156 10.4.3 Stream format and data encapsulation 157 10.4.4 Return link signalling157 10.4.5 Carrier assignment and r
38、elease .159 Annex A (informative): Compliance table160 Annex B (informative): Bibliography.161 Annex C (normative): Channel coding for very short frames .162 C.1 BCH encoding162 ETSI ETSI EN 301 790 V1.5.1 (2009-05)7 C.2 LDPC encoding163 History 166 ETSI ETSI EN 301 790 V1.5.1 (2009-05)8 Intellectua
39、l 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 and non-members, and can be found in ETSI SR 000 314: “Intellectual Property Rights (IP
40、Rs); 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.org/IPR/home.asp). Pursuant to the ETSI IPR Policy, no investigation, including IPR sear
41、ches, 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 present document. Foreword This European Standard (Telecommunications series
42、) 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 JTC Broadcast was established in 1990 to co-ordinate
43、 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 of radio and television receivers. The EBU is a profes
44、sional 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 European broadcasting area; its headquarters is in Genev
45、a. European Broadcasting Union CH-1218 GRAND SACONNEX (Geneva) Switzerland Tel: +41 22 717 21 11 Fax: +41 22 717 24 81 Founded in September 1993, the DVB Project is a market-led consortium of public and private sector organizations in the television industry. Its aim is to establish the framework fo
46、r the introduction of MPEG-2 based digital television services. Now comprising over 200 organizations from more than 25 countries around the world, DVB fosters market-led systems, which meet the real needs, and economic circumstances, of the consumer electronics and the broadcast industry. National
47、transposition dates Date of adoption of this EN: 11 May 2009 Date of latest announcement of this EN (doa): 31 August 2009 Date of latest publication of new National Standard or endorsement of this EN (dop/e): 28 February 2010 Date of withdrawal of any conflicting National Standard (dow): 28 February
48、 2010 ETSI ETSI EN 301 790 V1.5.1 (2009-05)9 1 Scope The present document forms the specification for the provision of the interaction channel for GEO satellite interactive networks with fixed Return Channel Satellite Terminals (RCST). The present document facilitates the use of RCSTs for individual
49、 or collective installation (e.g. SMATV) in a domestic environment. It also supports the connection of such terminals with in-house data networks. The present document may be applied to all frequency bands allocated to GEO satellite services. The solutions provided for interaction channel for satellite interactive networks are a part of a wide set of alternatives to implement interactive services through Digital Video Broadcasting (DVB) systems. The revision accomplished in 2002 provides the means to extend the applicability of the standard to regenerative satellite sy
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