[SLS-CC] [SLS-CC and RFM] RIDs disposition for CCSDS 131.3 - DVB-S2

Tue Aug 31 13:29:52 UTC 2021

Dear colleagues,
 Marie and I reviewed the DVB-S2 BB document for checking correct 
implementation of dispositions.

However, after careful review, we realised that RID ESA-AM-01, accepted 
during the review, was actually causing a technical discrepancy.
For your convenience, I remind you  that the RID was asking for removing 
the entry "Unmodulated" under the MODCOD table in ANNEX D with the 
rationale that an unmodulated signal is not a DVB-S2 signal but rather an 
operational use of the transmitter.

In reality, we realised that the term unmodulated refers to a DUMMY 
PLFRAME as specified in DVB-S2, Section 5.5.1, that is nothing else than a 
PLHEADER + 36x90 symbols with I=Q=1/sqrt(2). (see screenshot below)

Hence our proposal would be to change the ESA-AM-01 disposition and the BB 
as provided in attachment. (i.e., keep Unmodulated but add a note for 
clarification)

Could you please let me know if there is any opposition to this approach 
by no later than 15th September 2021 (EOB)?

Kind Regards

HE Space Operations for ESA - European Space Agency
Ph.D. Andrea Modenini
Communication Systems & Technologies Engineer 
TT&C and PDT Systems & Techniques Section (TEC-EST)
RF Systems Division
ESTEC
Keplerlaan 1, PO Box 299
NL-2200 AG Noordwijk, The Netherlands
andrea.modenini at esa.int | www.esa.int
T +31 71 56 53439, M +31 6 484 56 527

From:   "Vialard Marie" <Marie.Vialard at cnes.fr>
To:     "Andrea Modenini (external)" <Andrea.Modenini at esa.int>
Cc:     "Space Link Coding & Synchronization Working Group" 
<sls-cc at mailman.ccsds.org>
Date:   19-08-21 18:03
Subject:        RE: [SLS-CC and RFM] RIDs disposition for CCSDS 131.3 - 
DVB-S2

Hello,

Here is the draft version with the modifications.

Best regards,
Marie

De : Andrea Modenini (external) <Andrea.Modenini at esa.int> 
Envoyé : jeudi 19 août 2021 15:46
À : Vialard Marie <Marie.Vialard at cnes.fr>
Cc : Space Link Coding & Synchronization Working Group 
<sls-cc at mailman.ccsds.org>
Objet : Re: [SLS-CC and RFM] RIDs disposition for CCSDS 131.3 - DVB-S2

Dear Marie, 
 in view of the WG dispositions that we had in early July, if you could 
please provide us with the updated document. 

Kind Regards 

HE Space Operations for ESA - European Space Agency 
Ph.D. Andrea Modenini
Communication Systems & Technologies Engineer 
TT&C and PDT Systems & Techniques Section (TEC-EST)
RF Systems Division
ESTEC
Keplerlaan 1, PO Box 299
NL-2200 AG Noordwijk, The Netherlands
andrea.modenini at esa.int | www.esa.int
T +31 71 56 53439, M +31 6 484 56 527 

From:        Andrea Modenini/estec/ESA 
To:        "Vialard Marie" <Marie.Vialard at cnes.fr>, Enrico 
Vassallo/esoc/ESA at ESA, "Andrews, Kenneth S (JPL-332B)[JPL Employee]" <
kenneth.s.andrews at jpl.nasa.gov>, "Rodriguez, Shannon (GSFC-5670)" <
shannon.rodriguez-1 at nasa.gov>, "Victor Sank" <victor.j.sank at nasa.gov>, 
"Fong, Wai H. (GSFC-5670)" <wai.h.fong at nasa.gov>, Wing-tsz.lee-1 at nasa.gov 
Date:        07-07-21 18:02 
Subject:        [SLS-CC and RFM] RIDs disposition for CCSDS 131.3 - DVB-S2 

Dear all, 
 please find the link to the RIDs disposition. 

https://tinyurl.com/2xrezhz6 

@Marie: once you have the consolidated document, can you distribute to us? 
I will then upload it in CWE, and ask for Area resolution 

Kind Regards 

HE Space Operations for ESA - European Space Agency 
Ph.D. Andrea Modenini
Communication Systems & Technologies Engineer 
TT&C and PDT Systems & Techniques Section (TEC-EST)
RF Systems Division
ESTEC
Keplerlaan 1, PO Box 299
NL-2200 AG Noordwijk, The Netherlands
andrea.modenini at esa.int | www.esa.int
T +31 71 56 53439 
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