[SLS-CC] Concept paper for WG comments (deadline: 18 June 2019)

[Tomaso.deCola at dlr.de]

Dear Massimo,

Just few comments from my side:


·        I understand the project is about the extension of the present 131.3-B-1 to allow interworking of DVB-S2 with USLP and AOS. However, the description refers only to USLP. Similarly, the description provided in Annex 2 points only to USLP and generically about space-to-space and ground-to-space links. I'd suggest to explicitly mention AOS too.

·        In general from the purpose and the description of the project, it is not fully clear to me which technical work is planned here. Is it just about adding a chapter about specifying the codes (as I read from the description)? As such I understand, that new codes other than those of the ETSI DVB-S2 specification will be considered in this new chapter. Then, I also read that this new chapter will also specify the space link protocols. What does it mean exactly? Apparently I see something more than just "editing work", probably requiring validation through interoperability testing (i.e. with the typical 2 prototypes). Why isn't it the case?

·        In the section dedicated to the schedule, I read October 2019-October 2020, i.e. 12 months. However, immediately below it is stated "time to complete 17 months".

Thank you in advance for the clarifications/comments to my doubts.

Best Regards,

Tomaso

------------------------
Deutsches Zentrum für Luft- und Raumfahrt (DLR)
German Aerospace Center
Institute of Communications and Navigation | Satellite Networks | Oberpfaffenhofen | 82234 Wessling | Germany
Tomaso de Cola, Ph.D.
Telefon +49 8153 28-2156 | Telefax  +49 8153 28-2844 | tomaso.decola at dlr.de<mailto:sandro.scalise at dlr.de>
http://www.dlr.de/kn/institut/abteilungen/san



From: SLS-CC [mailto:sls-cc-bounces at mailman.ccsds.org] On Behalf Of Massimo.Bertinelli at esa.int
Sent: Tuesday, June 04, 2019 3:32 PM
To: Space Link Coding & Synchronization Working Group
Cc: Greg.J.Kazz at jpl.nasa.gov; Enrico.Vassallo at esa.int
Subject: [SLS-CC] Concept paper for WG comments (deadline: 18 June 2019)

Dear colleagues,

please find a concept paper provided by CNES, for the extension of CCSDS 131.3-B-1 to ground-space and space-space links, and for the use of USLP.
Your comments, if any, are expected by 18 June (2 weeks), before I proceed with requesting the resolution for the project approval.

Best regards,
Massimo


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Massimo Bertinelli
Communication Systems Engineer
ESA/Estec

Tel. +31 (0)71 5653435
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