[SLS-CC] A few C&S notes inspired by the SLS Plenary

[Ignacio.Aguilar.Sanchez at esa.int]

Thank you, Ken.

I will check the pending SLS resolution for 131.2 BB.

Concerning the 230.2-G-1, our CCSDS website points it to a 
no-longer-existing NGU WG. I remember Greg being involved in this as well.
Thus, I guess we need concurrence at SLS Area for its retirement.

Kind regards,

Ignacio
 

Ignacio Aguilar Sánchez
Communication Systems Engineer
Electrical Engineering Department

European Space Research and Technology Centre
Keplerlaan 1, PO Box 299, 2200 AG Noordwijk, The Netherlands
Tel. (31) 71 565 5695
Fax (31) 71 565 5418
Email: ignacio.aguilar.sanchez at esa.int
www.esa.int



From:   "Andrews, Kenneth S (US 332B)" <kenneth.s.andrews at jpl.nasa.gov>
To:     "Andrea.Modenini--- via SLS-CC" <sls-cc at mailman.ccsds.org>, 
"Ignacio Aguilar Sanchez/estec/ESA" <Ignacio.Aguilar.Sanchez at esa.int>
Date:   02/06/2022 17:32
Subject:        A few C&S notes inspired by the SLS Plenary



Ignacio and Andrea, 

Here are a few comments in response to discussion during the SLS Plenary.

*  A list of all projects is available in the CWE Area here:
https://cwe.ccsds.org/fm/Lists/Projects/AllOpenChartersWithAllProjects.aspx
One can scroll down to 5.02, for example, to see an historical list of all 
projects completed by the Coding and Synchronization Working Group.  Given 
this, I don’t see a good reason to duplicate the list in our charter.

*  The Optical Communications Working Group charter is available here:
https://cwe.ccsds.org/fm/Lists/Charters/sls.aspx
It does include coding for optical links, and in fact, that working group 
has been standardizing codes for optical links.  Hence, I think it makes 
sense to delete it from the Coding and Synchronization charter.

*  Andrea’s slides mention that for the 131.2 Blue Book (Flexible Advanced 
Coding and Modulation, i.e. SCCC), a C&S WG resolution for publication for 
publication was issued in Fall of 2021.  I found an email message dated 11 
February, 2022, but I don’t know that anything has happened since then.  I 
think the next step would be for Ignacio to issue an SLS resolution, so if 
you could both look back at that and confirm the status, I’d appreciate 
it.

*  For the five-year review, the only C&S document that comes to mind is 
230.2-G-1, “Next Generation Uplink”, published in 2014.  That book 
provided a roadmap for updating our ground-to-space communications link 
standards, and we have largely completed that over the past eight years. 
We added short-blocklength LDPC codes to the TC Blue Book (231.0-B) in 
2017 (updated again in 2021), explained those codes in the TC Green Book 
(230.1-G-3) in 2021, and permitted the use of the AOS protocol on forward 
links in the TM Coding Blue Book (131.0-B-4) and DVB-S2 Blue Book 
(131.3-B-2) in 2022, and have a resolution pending to do the same with the 
SCCC Blue Book (131.2-B).  Hence, I think we can now retire that Next 
Generation Uplink Green Book.

Thanks,

-Ken



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