1、 ETSI TR 101 545-4 V1.1.1 (2014-04) Digital Video Broadcasting (DVB); Second Generation DVB Interactive Satellite System (DVB-RCS2); Part 4: Guidelines for Implementation and Use of EN 301 545-2 Technical Report ETSI ETSI TR 101 545-4 V1.1.1 (2014-04) 2 Reference DTR/JTC-DVB-324-4 Keywords DVB, inte
2、raction, 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 notice The present document can be
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7、 The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2014. European Broadcasting Union 2014. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTM and the ETSI logo are Trade Marks of ETSI registered for the benefit of its Membe
8、rs. 3GPPTM and LTETM are Trade Marks of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. GSM and the GSM logo are Trade Marks registered and owned by the GSM Association. ETSI ETSI TR 101 545-4 V1.1.1 (2014-04) 3 Contents Intellectual Property Rights 11 Forewor
9、d. 11 Introduction 11 1 Scope 13 2 References 13 2.1 Normative references . 13 2.2 Informative references . 13 3 Definitions, symbols and abbreviations . 17 3.1 Definitions . 17 3.2 Symbols . 17 3.3 Abbreviations . 18 4 Reference Model 22 4.1 Architecture with co-located NCC, Gateway and Feeder 22 4
10、.2 Architecture with multiple feeders . 23 4.3 Architecture with transparent mesh connectivity . 23 4.4 Architecture with regenerative satellites 24 4.4.1 On board switching requirements . 25 4.5 Encapsulation Scenarios 27 4.6 Reference model for mobile Scenarios 29 4.6.1 Line-Of-Sight Scenarios . 3
11、0 4.6.1.1 Maritime . 30 4.6.1.2 Aeronautical . 30 4.6.2 Non-LOS Scenarios . 30 4.6.2.1 Railway . 30 4.6.2.2 Vehicular 31 5 Forward Link 31 5.1 Forward Link Considerations 31 5.1.1 General Notes on ACM Operation . 31 5.1.2 FEC Frame Size Selection 32 5.1.3 Receiver Operation . 32 5.1.4 Pilot Symbols
12、. 32 5.1.5 Restrictions on Transmitting DVB-S2 Dummy Frames . 32 5.1.6 GSE Fragmentation 33 5.1.7 Explicit Integrity Protection of SDU 33 5.1.7.1 Background. 33 5.2 Forward Link L2S Considerations . 35 5.2.1 L2S Insertion 35 5.2.2 NCR Insertion 35 5.2.3 FL L2S Components 35 5.2.3.1 NIT . 36 5.2.3.2
13、SCT/FCT2/BCT/TBTP2 . 36 6 Return Link 40 6.1 Fixed-RCST Physical Layer Synchronization . 40 6.1.1 DVB S2 Receiver implementation aspects . 40 6.2 Mobile RCST Synchronization 41 6.2.1 Doppler shift and time drift 41 6.2.2 Frequency accuracy 42 6.2.2.1 Frequency and timing drift within the burst . 46
14、6.3 Physical Layer . 47 6.3.1 Turbo-Phi Encoder . 47 6.3.2 Assessing the SISO decoder complexity 47 6.3.2.1 Max-Log-MAP decoding of a RSC code . 48 6.3.2.2 Computational complexity of the Max-Log-MAP algorithm . 49 ETSI ETSI TR 101 545-4 V1.1.1 (2014-04) 4 6.3.2.3 Summary of Turbo Decoder complexity
15、 50 6.3.3 CPM complexity 51 6.3.3.1 CC-CPM Modulator . 51 6.3.3.2 CPM receiver 51 6.3.4 Trellis Termination in CPM . 54 6.4 Return Link Encapsulation 55 6.4.1 RLE Principles . 55 6.4.2 RLE Interfaces . 56 6.4.2.1 RLE transmitter external interfaces 56 6.4.2.2 RLE transmitter internal interfaces . 57
16、 6.4.2.3 Internal structure of the receiver . 58 6.4.3 RLE Implementation Guidelines 59 6.4.4 RLE Profile Specification 63 6.4.4.1 Transparent star profile . 63 6.4.4.1.1 Higher layer packets . 63 6.4.4.1.2 Extension headers . 63 6.4.4.1.3 Packet label (ALPDU label) . 63 6.4.4.1.4 Protocol type . 64
17、 6.4.4.1.5 Total length field . 65 6.4.4.1.6 Protocol_type_suppressed field 65 6.4.4.1.7 Label type . 65 6.4.4.1.8 Fragment label (PPDU label) 65 6.4.4.1.9 Fragment Id . 65 6.4.4.1.10 Sequence number 66 6.4.4.1.11 CRC field 66 6.4.4.1.12 Start_indicator, End_indicator and RLE packet length . 66 6.4.
18、4.2 Mesh and regenerative scenarios 67 6.4.5 RLE Reassembly Error Checking Guidelines 68 6.4.5.1 Reassembly error check algorithm with sequence number . 69 6.4.5.2 Reassembly error check algorithm with CRC32 70 6.4.5.3 Reassembly process 72 6.5 Demand Assignment in DVB-RCS2 . 73 6.6 Examples of QoS
19、configuration . 74 6.6.1 Example of support for basic DiffServ QoS . 75 6.6.2 Example 1 - RCST configuration . 75 6.7 Recommendations for the use of Request Classes . 77 6.8 Joint use of RA and DAMA access mechanisms . 78 6.8.1 RA use cases 79 6.8.1.1 RA cold start . 79 6.8.1.2 RA-DAMA top-up 79 6.8
20、.1.3 RA-DAMA back-up . 79 6.8.1.4 RA IP queue . 79 6.8.1.5 RA capacity requests 79 6.8.1.6 RA for SCADA 80 6.8.2 Integration of DA-AC and RA-AC for user data transmission 80 6.8.2.1 Design requirements . 81 6.8.2.2 Example algorithm . 81 6.8.2.2.1 DA-AC delay estimation . 82 6.8.2.2.2 RA delay estim
21、ation 84 6.8.3 Integration of DA-AC and RA-AC for user data and signalling transmission . 85 7 M 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
22、.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 server) which are, or may be, or may become, essential to the
23、present document. Foreword This Technical Report (TR) 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
24、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 of
25、 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 Europ
26、ean 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 Digital Video Broadcasting Project (DVB) is an industry-led consortium of broadcasters, manufacturers, network operators, soft
27、ware developers, regulatory bodies, content owners and others committed to designing global standards for the delivery of digital television and data services. DVB fosters market driven solutions that meet the needs and economic circumstances of broadcast industry stakeholders and consumers. DVB sta
28、ndards cover all aspects of digital television from transmission through interfacing, conditional access and interactivity for digital video, audio and data. The consortium came together in 1993 to provide global standardization, interoperability and future proof specifications. The present document
29、 is part 4 of a multi-part deliverable covering the Second Generation DVB Interactive Satellite System (DVB-RCS2), as identified below: TS 101 545-1: “Overview and System Level specification“; EN 301 545-2: “Lower Layers for Satellite standard“; TS 101 545-3: “Higher Layers Satellite Specification“;
30、 TR 101 545-4: “Guidelines for Implementation and Use of EN 301 545-2“; TR 101 545-5: “Guidelines for the Implementation and Use of TS 101 545-3“. Introduction The present document gives guidelines for the implementation of the second generation of Digital Video Broadcasting (DVB) interaction channe
31、l for Satellite Distribution System (also known as DVB-RCS2: Return Channel via Satellite), particularly related to lower layer specifications i.1. It also describes the specification for geostationary satellite interactive system i.3. ETSI ETSI TR 101 545-4 V1.1.1 (2014-04) 12 The present document
32、provides some examples of implementation details related either with the physical (e.g. code performance, link layer encapsulation, link budget) or the medium access control (e.g. use of capacity request categories) layers. It draws attention to the technical questions that need to be answered in th
33、e implementation of the DVB-RCS2 specification and setting up a DVB-RCS2 network and offers some guidance in finding answers to them. Outline of the present document Clause 4 offers reference models for different scenarios of DVB-RCS2 use. Clause 5 provides implementation guidelines for the Forward
34、Link and the lower layer signalling. Clause 6 offers implementation guidelines for the Return Link. Clause 7 describes guidelines for implementation the M Second Generation DVB Interactive Satellite System (DVB-RCS2); Part 2: Lower Layers for Satellite standard“. i.2 ETSI EN 302 307: “Digital Video
35、Broadcasting (DVB); Second generation framing structure, channel coding and modulation systems for Broadcasting, Interactive Services, News Gathering and other broadband satellite applications (DVB-S2)“. i.3 ETSI TS 101 545-1: “Digital Video Broadcasting (DVB); Second Generation DVB Interactive Sate
36、llite System (DVB-RCS2); Part 1: Overview and System Level specification“. i.4 ETSI TS 101 545-3: “Digital Video Broadcasting (DVB); Second Generation DVB Interactive Satellite System (DVB-RCS2); Part 3: Higher Layers Satellite Specification“. i.5 Guidelines for 64-bit global identifier (EUI-64) Reg
37、istration Authority. NOTE: Available at http:/standards.ieee.org/regauth/oui/tutorials/EUI64.html. i.6 ETSI EN 301 459: “Satellite Earth Stations and Systems (SES); Harmonized EN for Satellite Interactive Terminals (SIT) and Satellite User Terminals (SUT) transmitting towards satellites in geostatio
38、nary orbit in the 29,5 GHz to 30,0 GHz frequency bands covering essential requirements under article 3.2 of the R Harmonized EN for Very Small Aperture Terminal (VSAT); Transmit-only, transmit/receive or receive-only satellite earth stations operating in the 11/12/14 GHz frequency bands covering ess
39、ential requirements under article 3.2 of the R Harmonized EN for Low data rate Mobile satellite Earth Stations (MESs) except aeronautical mobile satellite earth stations, operating in the 11/12/14 GHz frequency bands covering essential requirements under article 3.2 of the R Harmonized EN for satell
40、ite mobile Aircraft Earth Stations (AESs) operating in the 11/12/14 GHz frequency bands covering essential requirements under article 3.2 of the R Harmonized EN for satellite Earth Stations on board Vessels (ESVs) operating in the 11/12/14 GHz frequency bands allocated to the Fixed Satellite Service
41、 (FSS) covering essential requirements under article 3.2 of the R Harmonized EN for tracking Earth Stations on Trains (ESTs) operating in the 14/12 GHz frequency bands covering essential requirements under article 3.2 of the R Harmonized EN for Vehicle-Mounted Earth Stations (VMES) operating in the
42、14/12 GHz frequency bands covering the essential requirements of article 3.2 of the R Satellite User Terminals (SUT) using satellites in geostationary orbit operating in the 19,7 GHz to 20,2 GHz (space-to-earth) and 29,5 GHz to 30 GHz (earth-to-space) frequency bands“. i.16 ETSI EN 301 489-12: “Elec
43、tromagnetic compatibility and Radio spectrum Matters (ERM); ElectroMagnetic Compatibility (EMC) standard for radio equipment and services; Part 12: Specific conditions for Very Small Aperture Terminal, Satellite Interactive Earth Stations operated in the frequency ranges between 4 GHz and 30 GHz in
44、the Fixed Satellite Service (FSS)“. i.17 ETSI ETS 300 784: “Satellite Earth Stations and Systems (SES); Television Receive-Only (TVRO) satellite earth stations operating in the 11/12 GHz frequency bands“. i.18 CENELEC EN 61319-1: “Interconnections of satellite receiving equipment Part 1: Europe“. i.
45、19 CENELEC EN 50083 series: “Cable networks for television signals, sound signals and interactive services“. i.20 DiSEqC Bus Specification, Version 4.2, EUTELSAT: “DiSEqC Bus Specification“. i.21 NIST Special Publication 800-38A, 2001 edition: “Recommendation for Block Cipher Modes of Operation - Me
46、thods and Techniques“. i.22 IETF RFC 4945: “The Internet IP Security PKI Profile of IKEv1/ISAKMP, IKEv2, and PKIX“. i.23 IETF RFC 4880: “OpenPGP Message Format“. i.24 Recommendation ITU-T X.509: “Information technology - Open Systems Interconnection - The Directory: Public-key and attribute certific
47、ate frameworks“, August 2005 and later corrigenda“. i.25 Rivest, R.; A. Shamir; L. Adleman: “A Method for Obtaining Digital Signatures and Public-Key Cryptosystems“, Communications of the ACM 21 (2): 120-126. ETSI ETSI TR 101 545-4 V1.1.1 (2014-04) 15 i.26 IEEE 802.3: “Information technology - Telec
48、ommunications and information exchange between systems - Local and metropolitan area networks - Specific requirements - Part 3: Carrier Sense Multiple Access with Collision Detection (CSMA/CD) Access Method and Carrier Sense Multiple Access with Collision Detection (CSMA/CD) Access Method and Physic
49、al Layer Specifications“. i.27 IETF RFC 5911: “New ASN.1 Modules for Cryptographic Message Syntax (CMS) and S/MIME“. i.28 ETSI TS 101 162: “Digital Video Broadcasting (DVB); Allocation of identifiers and codes for Digital Video Broadcasting (DVB) systems“. i.29 George Marsaglia, “Xorshift RNGs“, Journal of Statistical Software (Vol.8 Issue 14), July 2003. i.30 IETF RFC 3629: “UTF-8, a transformation format of ISO 10646“, November 2003. i.31 RSA Laboratories, “PKCS #5 v2.1: Password-Based Cryptography Standard“, October 5, 2006
