1、 ETSI TS 102 402 V1.1.1 (2005-05)Technical Specification Satellite Earth Station and systems (SES);Broadband Satellite Multimedia;Transparent Satellite Star - A (TSS-A);DVB-S and DVB-RCS for transparent satellites;Sub-family 1 (TSS-A1)ETSI ETSI TS 102 402 V1.1.1 (2005-05) 2 Reference DTS/SES-00273 K
2、eywords air interface, DVB, architecture, broadband 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 no
3、tice 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 reference version is the Portab
4、le Document Format (PDF). In case of dispute, the 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
5、on 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
6、be reproduced except as authorized by written permission. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2005. All rights reserved. DECTTM, PLUGTESTSTM and UMTSTM are Trade Marks of ETSI registered for the benefit of i
7、ts Members. TIPHONTMand the TIPHON logo are Trade Marks currently being registered by ETSI 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 ETSI TS 102 402 V1.1.1 (2005-05) 3 Contents Intellectual P
8、roperty Rights5 Foreword.5 Introduction 5 1 Scope 6 2 References 7 3 Definitions and abbreviations.8 3.1 Definitions8 3.2 Abbreviations .9 4 Architecture10 4.1 Overall architecture 10 4.1.1 Star topology.10 4.1.2 Connectivity11 4.1.3 Transparent Satellite .11 4.1.4 Satellite Forward and Return Chann
9、els 11 4.2 Hub station .11 4.2.1 Overview 11 4.2.2 Interface to a terrestrial network.12 4.2.3 Forward Link Sub-system.12 4.2.3.1 DVB Gateway.12 4.2.3.2 DVB-S signal format.12 4.2.4 Return Link Sub-system .13 4.2.5 Network Management System13 4.2.6 Network Control Centre13 4.3 Satellite Terminal .13
10、 4.3.1 Overview 13 4.3.2 Interworking Unit .14 4.3.3 Satellite Terminal Return Link sub-system 14 4.3.3.1 Cell processor14 4.3.3.2 DVB-RCS signal format .15 4.3.4 Satellite Terminal Forward Link sub-system15 4.3.5 Management agent15 4.3.6 Control Unit15 5 Internetworking with and within TSS-A1 15 5.
11、1 Internetworking 15 5.2 IP scenarios 16 5.3 Main IP services .16 5.4 Forwarding on the air interface 16 5.4.1 Unicast 17 5.4.2 Multicast and broadcast 17 6 Profile for DVB-S and DVB-RCS: commonalities to all planes17 6.1 Satellite Independent Service Access Point17 6.2 Types of payload 17 6.3 MAC a
12、nd Data Link layer 19 6.3.1 Forward link19 6.3.1.1 Multi Protocol Encapsulation19 6.3.1.2 The MPEG2 Transport Stream19 6.3.2 Return link: multiple access and superframes.20 6.4 Physical layer .22 6.4.1 Forward link22 6.4.2 Return link 22 6.4.2.1 General22 6.4.2.2 Return link emission at the STs: bur
13、st format.23 ETSI ETSI TS 102 402 V1.1.1 (2005-05) 4 7 Profile in the Data plane.23 7.1 Forward Link: IP over DVB-S .23 7.1.1 Useful bit rate .23 7.1.2 Mac and Data link layer23 7.1.2.1 Addressing 23 7.2 Return Link: IP over DVB-RCS.23 7.2.1 Useful bit rate .23 7.2.2 Data Link layer: ATM format.23 7
14、.2.3 Physical layer: traffic bursts24 8 Profile in the Control Plane24 8.1 Signalling on the Forward Link24 8.1.1 General Information: Service Information tables .24 8.1.2 Terminal Information Message.25 8.1.3 Network Clock Reference.25 8.2 Signalling on the Return Link 25 8.2.1 Burst types and thei
15、r format25 8.2.2 Capacity requests and capacity categories 26 8.3 Synchronization26 8.3.1 General26 8.3.2 Synchronization procedures27 8.3.2.1 Overall events sequencing.27 8.3.2.2 Logon procedure .28 8.3.2.3 Enhanced coarse synchronization procedure.28 9 Management.29 9.1 General concepts and featur
16、es 29 9.2 Specific vs. common functions.29 9.3 Protocol 30 9.4 Management Information Bases.30 9.5 ST configuration.31 9.6 Management and Control .31 10 Security.31 10.1 Data protection .31 10.1.1 Upper layers mechanisms .31 10.1.2 Forward link: DVB-S Conditional Access32 10.2 Protection of resource
17、.32 10.3 Miscellaneous.32 Annex A (informative): Bibliography.33 History 34 ETSI ETSI TS 102 402 V1.1.1 (2005-05) 5 Intellectual 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,
18、 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 updates are available on
19、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. 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) whi
20、ch are, or may be, or may become, essential to the present document. Foreword This Technical Specification (TS) has been produced by ETSI Technical Committee Satellite Earth Stations and Systems (SES). Introduction While the DVB-S standard 3 enables broadband services via satellite in one direction,
21、 the need for a return channel via satellite has appeared. This was standardized by DVB-RCS standards 2 and 8. DVB-RCS may be described as a development of VSAT systems which already offer broadband services such as Internet access, multicasting, VPN. DVB-RCS is the easy way to provide interactive b
22、roadband over satellite. A DVB-RCS based network can be configured as a star network, which supports communications in the forward channel from the Hub station to many Terminals, functioning according to DVB-S, and in the return channel from the Terminals to the Hub station. We envisage here a solut
23、ion suitable for both the professional and the residential markets. ETSI ETSI TS 102 402 V1.1.1 (2005-05) 6 1 Scope The present document has been produced by the ETSI Technical Committee Satellite Earth Station and Systems (TC SES) Broadband Satellite Multimedia (BSM) working group. It defines BSM a
24、ir interface subfamily Transparent Satellite Star - A1 (TSS-A1) using DVB-RCS and DVB-S with transparent satellite so support interworking with IP multimedia and services. The reference architecture (or BSM family, see 1) is TSS i.e. the satellite is Transparent (bent-pipe), the network is configure
25、d according to a Star topology and the return channel passes through the Satellite; the A is to designate the first family envisaged in this family of BSM specifications; the 1, the first subfamily in the TSS-A family 7. TSS-A subfamilies (system profiles)TSS-A2TSS-A1TSS-A family(DVB-RCS for transpa
26、rent satellite)(common elements)Figure 1: BSM TSS-A Air Interface Family document structure The present document is based on the baseline DVB-RCS specification as defined by the SatLabs System Recommendations 15. Nonetheless, the choice has been made to fully describe some concepts in the present do
27、cument in order to be self explanatory or to refer to the original standards 2 and 8 where the appropriate level of precision can be found. The key issue of the present document consists of explaining how to map functions or parameters defined above the Satellite Independent Services Access Point (S
28、I-SAP) to the layers downward the SI-SAP (grey part of figure 2, extracted from TR 101 984 4). BSM NetworkMEDIUM ACCESSCONTROLSATELLITE LINKCONTROLTCP/IP interworkingcorenetworkinterfacePHYSICALMEDIUM ACCESSCONTROLSATELLITE LINKCONTROLTCP/IP interworkingusernetworkinterfacePHYSICAL PHYSICAL PHYSICAL
29、To/fromCoreNetworkTo/fromLocalNetworkAir interfaceAir interfaceSATELLITESI-SAPSATELLITE TERMINAL (ST) SATELLITE TERMINAL (ST)SI-SAPSatellite Independent Interface (SI-SAP)Peer-to-peer IP trafficSDAF SDAFSIAF SIAFFigure 2: Satellite sub-network layering ETSI ETSI TS 102 402 V1.1.1 (2005-05) 7 2 Refer
30、ences 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-specific. For a specific reference, subsequent revi
31、sions 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 ETSI TR 102 187: “Satellite Earth Stations and Systems (SES); Broadband Satell
32、ite Multimedia; Overview of BSM families“. 2 ETSI EN 301 790: “Digital Video Broadcasting (DVB); Interaction channel for satellite distribution systems“. 3 ETSI EN 300 421: “Digital Video Broadcasting (DVB); Framing Structure, Channel Coding and Modulation for 11/12 GHz Satellite Services“. 4 ETSI T
33、R 101 984: “Satellite Earth Stations and Systems (SES); Broadband Satellite Multimedia; Services and Architectures“. 5 ETSI TR 101 985: “Satellite Earth Stations and Systems (SES); Broadband Satellite Multimedia; IP over satellite“. 6 ETSI EN 301 192 (V1.2.1): “Digital Video Broadcasting (DVB); DVB
34、specification for data broadcasting“. 7 ETSI EN 102 352: “Satellite Earth Stations and Systems (SES); Broadband Satellite Multimedia; Transparent Satellite Star -A (TSS-A) DVB-S/DVB-RCS for transparent satellites“. 8 ETSI TR 101 790: “Digital Video Broadcasting (DVB); Interaction channel for satelli
35、te distribution systems; Guidelines for the use of EN 301 790“. 9 ETSI EN 300 468: “Digital Video Broadcasting (DVB); Specification for Service Information (SI) in DVB systems“. 10 ISO/IEC 13818-1: “Information Technology - Generic coding of moving pictures and associated audio information: Systems“
36、. 11 IETF RFC 1901: “Introduction to Community-based SNMPv2“. 12 IETF RFC 1213: “Management Information Base for Network Management of TCP/IP-based internets: MIB-II“. 13 IETF RFC 1155: “Structure and identification of management information for TCP/IP-based Internets“. 14 ETSI TR 101 202 (V1.2.1):
37、“Digital Video Broadcasting; Implementation Guidelines for Data Broadcasting“. 15 SatLabs System Recommendations. NOTE: http:/satlabs.org 16 IETF RFC 2684: “Multiprotocol Encapsulation over ATM Adaptation Layer 5“. 17 ETSI TR 102 287: “Satellite Earth Stations and Systems (SES); Broadband Satellite
38、Multimedia (BSM); IP Interworking over satellite; Security aspects“. ETSI ETSI TS 102 402 V1.1.1 (2005-05) 8 18 ETSI ETR 289: “Digital Video Broadcasting (DVB); Support for use of scrambling and Conditional Access (CA) within digital broadcasting systems“. 19 IETF RFC 1112: “Host extensions for IP m
39、ulticasting“. 20 IETF RFC 2401: “Security Architecture for the Internet Protocol“. 3 Definitions and abbreviations 3.1 Definitions For the purposes of the present document, the terms and definitions given in EN 301 790 2, TR 101 790 8, SatLabs System Recommendations 15 and the following apply: beare
40、r service: telecommunication service that provides the capability of transmission of signals between access points broadcast: communication capability which denotes unidirectional distribution to an unspecified number of access points connected to the network control plane: plane which performs the
41、call control and connection control functions, and deals with the signalling necessary to set up, supervise and release calls and connections data piping: mode for conveying data over protocols of the DVB family where discrete pieces of data are delivered using containers (MPEG2 packetized elementar
42、y streams) to the destination without any control information data streaming: mode for conveying data over protocols of the DVB family where the data takes the form of a continuous stream which may be Asynchronous (i.e. without timing, as for Internet packet data), Synchronous (i.e. tied to a fixed
43、rate transmission clock, as for emulation of a synchronous communication link) or Synchronized (i.e. tied via time stamps to the decoder clock and hence to other PES packets, as for the display of TV captions) Digital Video Broadcasting Return Channel Satellite (DVB-RCS): protocol for an interaction
44、 (or return) channel in satellite links Digital Video Broadcasting via Satellite (DVB-S): protocol for broadcasting TV signals and by extension data over satellite management plane: Plane which provides two types of functions, namely layer management and plane management functions multicast: communi
45、cation capability which denotes unidirectional distribution from a single source access point to a number of specified destination access points Quality of Service (QoS): measure of the parameters of a network that influence perceived quality of communications, including the delay, jitter, bandwidth
46、, and packet loss that packets sent by the application experience when being transferred by the network Transmission Control Protocol (TCP): protocol above IP which provides a reliable, connection oriented, end-to end transport service between hosts transparent (or bent pipe) satellite: satellite wh
47、ich converts the frequency of incoming signals and amplifies them, the desired carriers as well as the undesired noise, without any additional processing turbo coding: the most recent and a high performance error correction coding scheme which has proven to be the most efficient in most cases user p
48、lane: Plane which has a layered structure and provides for user information flow transfer, along with associated controls (e.g. flow control, recovery from errors, etc.) VSAT systems: satellite networks designed to offer broadband services to companies by the means of small dishes ETSI ETSI TS 102 4
49、02 V1.1.1 (2005-05) 9 3.2 Abbreviations For the purposes of the present document, the following abbreviations apply: AAA Authorization Authentication Accounting AAL5 ATM Adaptation Layer version 5 ACQ ACQuisition ATM Asynchronous Transfer Mode AVBDC Absolute Volume Based Dynamic Capacity BSM Broadband Satellite Multimedia CA Conditional Access CRA Continuous Rate Assignment CSC Common Signalling Channel DAMA Demand Assigned Multiple Access DSP Digital Signal Processing DVB-RCS Digital Video Broadcasting Retu
