BS EN 50585-2014 Communications protocol to transport satellite delivered signals over IP networks《运输IP网络上的卫星传送信号的通信协议》.pdf
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1、BSI Standards PublicationBS EN 50585:2014Communications protocol totransport satellite deliveredsignals over IP networksBS EN 50585:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 50585:2014.The UK participation in its preparation was entrusted to Technical
2、Committee EPL/100/4, Cable distribution equipment and systems.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The
3、 British Standards Institution 2014. Published by BSI StandardsLimited 2014ISBN 978 0 580 82994 9ICS 33.170Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 June
4、2014.Amendments issued since publicationDate Text affectedBS EN 50585:2014EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 50585 May 2014 ICS 33.170 English Version Communications protocol to transport satellite delivered signals over IP networks Protocole de communication pour le transport des
5、signaux transmis par satellite sur les rseaux IP Kommmunikationsprotokoll zum Transport von Satellitensignalen ber IP-Netze This European Standard was approved by CENELEC on 2014-03-24. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for g
6、iving this European Standard the status of a national standard without any alteration.Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CENELEC member. This European Standard exists in thre
7、e official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CENELEC members are the national elect
8、rotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Rom
9、ania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brusse
10、ls 2014 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN 50585:2014 EBS EN 50585:2014EN 50585:2014 - 2 - Contents Page Foreword . 5 Introduction 6 1 Scope . 7 2 Normative references . 7 3 Terms, definitions and abbreviations . 8 3.1
11、Terms and definitions 8 3.2 Abbreviations 9 4 Basic description of SATIP system 10 4.1 SATIP concept 10 4.2 Network topology . 10 4.3 Client functionality . 11 4.4 Specification compliance . 11 4.5 Usage scenarios . 11 5 Protocol specification 11 5.1 General . 11 5.2 UPnP addressing 13 5.2.1 General
12、 . 13 5.2.2 DHCP addressing . 13 5.2.3 Auto-IP addressing . 13 5.3 UPnP Discovery 13 5.3.1 General . 13 5.3.2 Simple service description protocol SSDP 13 5.3.3 Server Advertisements . 14 5.3.4 DEVICE ID negotiation . 16 5.3.5 Client Search Requests 22 5.4 UPnP Description . 23 5.4.1 General . 23 5.4
13、.2 XML Device Description . 23 5.5 RTSP Control 26 5.5.1 General . 26 5.5.2 Real time streaming protocol RTSP . 26 5.5.3 Setting up a new session . 28 5.5.4 Starting the playout of a media stream (PLAY) . 33 5.5.5 Maintaining a session (OPTIONS) . 35 5.5.6 Modifying a media stream 36 5.5.7 Joining a
14、n existing stream 37 5.5.8 Listing available media streams (DESCRIBE) . 37 5.5.9 Closing the session and stopping the playout (TEARDOWN) . 40 5.5.10 RTSP Methods 41 5.5.11 Uniform Resource Identifyer (URI) 44 5.5.12 Query Syntax . 44 5.5.13 Example of RTSP sequence diagram . 48 5.5.14 Internet Group
15、 Management Protocol (IGMP) . 49 5.5.15 Status Code Definitions . 51 5.5.16 RTCP Announcements . 57 5.5.17 HTTP based requests . 58 BS EN 50585:2014- 3 - EN 50585:2014 5.6 Media Transport . 58 5.6.1 RTP Transport 58 5.6.2 HTTP Streaming . 59 5.7 Media Formats . 59 6 Dynamic versus Static Server Oper
16、ation 59 6.1 Dynamic Operation (default) 59 6.2 Static Operation . 59 6.3 Mixed Operation 60 Annex A (informative) Usage scenarios . 61 A.1 IP Adapter / IP Multiswitch . 61 A.2 IP LNB . 61 A.3 Master STB . 61 A.4 Universal Service Gateway . 62 A.5 IP based SMATV / Multi-Dwelling Units . 62 Annex B (
17、informative) Client Implementation Guidelines . 64 B.1 General . 64 B.2 RTSP Clients 64 B.2.1 Definition 64 B.2.2 Client Setup and Configuration Settings 64 B.2.3 Service Discovery 65 B.2.4 Channel change implementation . 66 B.3 IGMPv3 Clients 67 B.3.1 Definition 67 B.3.2 Client Setup and Configurat
18、ion Settings 67 Annex C (informative) Example of SATIP Message Exchanges 70 C.1 Example 1: Unicast Session Setup (no front-end selected) plus three additional channel changes 70 C.2 Example 2: Multicast Session Setup with front-end selection and destination address/port 72 Annex D (informative) Supp
19、ort for DVB-T/-T2 (optional) 74 D.1 General . 74 D.2 Implementation 74 Annex E (informative) SATIP trademark and certification 76 E.1 Trademark 76 E.2 Artwork . 76 E.3 Certification 76 Bibliography 77 Figures Figure 1 Basic principle of the SATIP system . 7 Figure 2 Different types of live media ser
20、vers . 11 Figure 3 SATIP protocol stack . 12 Figure 4 Comparison between SATIP and DLNA . 12 Figure 5 NOTIFY message timing . 14 Figure 6 DEVICE ID allocation timing 17 Figure 8 RTSP Control Example . 26 Figure 9 Client with two RTSP sessions on the same SATIP server carried in different concurrent
21、TCP connections 27 BS EN 50585:2014EN 50585:2014 - 4 - Figure 10 Client with two RTSP sessions on the same SATIP server carried in one TCP connection at a given time . 27 Figure 11 Stream owner setting up a session and defining the transport 31 Figure 12 Non-stream owner joining an already existing
22、multicast stream and defining the transport . 31 Figure 13 Non-stream owner joining an already existing unicast stream and defining the transport 31 Figure 14 Server Stream Output State Machine . 35 Figure 15 RTSP State Machine 42 Figure 16 Operation of SATIP in the presence of multiple satellite po
23、sitions . 46 Figure 17 Server internal source and frontend selection matrix . 46 Figure 18 Media stream object definition 47 Figure 19 Example of a sequence diagram for RTSP operation 48 Figure 20 Example of SATIP multicast network diagram . 49 Figure 21 General membership query message timing 49 Fi
24、gure 22 Group specific query timing 51 Figure 23 Transport stream IP encapsulation . 59 Figure 24 Example of SATIP system using static server operation 60 Figure A.1 IP Multiswitch application 61 Figure A.2 SATIP conversion inside an IP-LNB . 61 Figure A.3 Master-Slave application . 62 Figure A.4 Un
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