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<p class="MsoNormal">Dear SLP WG,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Attached please find a Word document that contains proposed changes to the Shift register CRC diagrams in the AOS, TM, USLP, and Prox-1 CRC Space Data Link Protocol blue books.<o:p></o:p></p>
<p class="MsoNormal">These changes are proposed by NASA (see SLS_CS action item below). Please take some time to review the proposed changes and provide me with your comments. I would appreciate hearing back from you by the end of May if at all possible concerning
those proposed changes to our diagrams.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Best regards,<o:p></o:p></p>
<p class="MsoNormal">Greg<o:p></o:p></p>
<p class="MsoNormal">Chairman SLP WG<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b><span style="font-size:12.0pt;color:black">From: </span></b><span style="font-size:12.0pt;color:black">"Enrico.Vassallo@esa.int" <Enrico.Vassallo@esa.int><br>
<b>Date: </b>Tuesday, May 19, 2020 at 2:49 AM<br>
<b>To: </b>"sls-rfm@mailman.ccsds.org" <sls-rfm@mailman.ccsds.org>, "Border, James S (US 335D)" <james.s.border@jpl.nasa.gov>, "Volk, Christopher P (US 335D)" <christopher.p.volk@jpl.nasa.gov>, "Kazz, Greg J (US 312B)" <greg.j.kazz@jpl.nasa.gov>, "Massimo.Bertinelli@esa.int"
<Massimo.Bertinelli@esa.int><br>
<b>Subject: </b>[EXTERNAL] Fw: CCSDS RFM WG Spring meeting - comments received on DDOR inputs - status as of 6 April - C&S proposal<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif">Dear All,</span>
<br>
<br>
<span style="font-size:10.0pt;font-family:"Arial",sans-serif">I have not received any negative comments concerning the suggested way forward from April 6, which is therefore agreed by both RFM and DDOR WGs.</span>
<br>
<br>
<span style="font-size:10.0pt;font-family:"Arial",sans-serif">Meanwhile, C&S WG discussed CS_20-03 and tentatively (minutes are still draft) agreed on the following action:</span>
<br>
<b><span style="font-size:14.0pt;font-family:"Georgia",serif">SLS-CS_20-03(PN shift registers, NASA)</span></b>
<o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Georgia",serif">NASA presented a proposal for the unification of the representation of the polynomial and diagrams representing PN shift registers in different CCSDS books (affecting also other
WGs, e.g. RFM)</span> <br>
<span style="font-size:12.0pt;font-family:"Georgia",serif">AI_20_04 was given to the WG to report about the proposal, the possible need to have a similar standard representation and, in case, the preferred way forward. September was set as deadline for the
action.</span> <br>
<br>
<span style="font-size:10.0pt;font-family:"Arial",sans-serif">I would suggest that we also agree on a similar action for the RFM WG with the same deadline. September would be compatible with the DDOR recommendation(s) agency review cycle.</span>
<br>
<br>
<span style="font-size:10.0pt;font-family:"Arial",sans-serif">If I do not hear from you otherwise by Friday, I will enter such action in the draft minutes of the meeting held by correspondence.</span>
<br>
<br>
<span style="font-size:10.0pt;font-family:"Arial",sans-serif;background:yellow;mso-highlight:yellow">Incidentally, I would like to alert Greg that the SLP group should have a look at this NASA's input since it also proposes changes to 732.0-B-3 and 732.1-B-1,
which I believe are under SLP WG purview. I attached the input again for SLP convenience.</span>
<br>
<br>
<span style="font-size:10.0pt;font-family:"Arial",sans-serif">Regards, Enrico</span>
<o:p></o:p></p>
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