ETSI TR 101 545-4 V1.1.1 (2014-04) Technical Report Digital Video Broadcasting (DVB); Second Generation DVB Interactive Satellite System (DVB-RCS2); Part 4: Guidelines for Implementation and Use of EN 301 545-2 2 ETSI TR 101 545-4 V1.1.1 (2014-04) Reference DTR/JTC-DVB-324-4 Keywords 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 à but non lucratif enregistrée à la Sous-Préfecture de Grasse (06) N° 7803/88 Important notice The present document can be downloaded from: http://www.etsi.org The present document may be made available in electronic versions and/or in print. The content of any electronic and/or print versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any existing or perceived difference in contents between such versions and/or in print, the only prevailing document is the print of the Portable Document Format (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 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 be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm except as authorized by written permission of ETSI. The content of the PDF version shall not be modified without the written authorization of ETSI. 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 Members. 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 3 ETSI TR 101 545-4 V1.1.1 (2014-04) Contents Intellectual Property Rights .............................................................................................................................. 11 Foreword........................................................................................................................................................... 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 4.2 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 ............................................................................................................................. 30 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 ............................................................................................................................................. 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 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 .......................................................................................................................