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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Greg,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Concerning next telco, could you please organise a webex session, so that it will be easier to share documents and run discussions?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Thanks,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Tomaso<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:dimgray">————————————————————————</span><span style="color:#1F497D">
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</span><b><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:dimgray">Deutsches Zentrum für Luft- und Raumfahrt</span></b><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:dimgray"> (DLR)</span><span style="color:#1F497D">
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</span><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:dimgray">German Aerospace Center</span><span style="color:#1F497D">
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</span><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:dimgray">Institute of Communications and Navigation | Satellite Networks | Oberpfaffenhofen | 82234 Wessling | Germany</span><span style="color:#1F497D">
<o:p></o:p></span></p>
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<b><span lang="IT" style="font-size:10.0pt;font-family:"Arial","sans-serif";color:dimgray">Tomaso de Cola, Ph.D.</span></b><span lang="IT" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">
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</span><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:dimgray">Telefon +49 8153 28-2156 | Telefax +49 8153 28-2844 |</span><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D">
</span><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><a href="mailto:tomaso.decola@dlr.de"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">tomaso.decola@dlr.de</span></a>
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</span><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D"><a href="http://www.dlr.de/kn/institut/abteilungen/san">http://www.dlr.de/kn/institut/abteilungen/san</a></span><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">
<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
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<b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> sls-slp-bounces@mailman.ccsds.org [mailto:sls-slp-bounces@mailman.ccsds.org]
<b>On Behalf Of </b>Kazz, Greg J (312B)<br>
<b>Sent:</b> Friday, February 12, 2016 20:48<br>
<b>To:</b> SLS-SLP Mailing List<br>
<b>Subject:</b> [Sls-slp] Material to discuss during 3rd USLP Telecon<o:p></o:p></span></p>
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<span style="font-size:15.0pt;font-family:"Calibri","sans-serif";color:black">Dear SLP WG,<o:p></o:p></span></p>
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<span style="font-size:15.0pt;font-family:"Calibri","sans-serif";color:black"><o:p> </o:p></span></p>
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<span style="font-size:15.0pt;font-family:"Calibri","sans-serif";color:black">I will soon create a doodle poll for the 3rd USLP White Book telecon.<o:p></o:p></span></p>
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<span style="font-size:15.0pt;font-family:"Calibri","sans-serif";color:black">The focus will be on Section 2 of the post telecon 2 white book as well as a trial balloon pitch for an additional type of Insert Zone service, called On-demand insert.<o:p></o:p></span></p>
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<span style="font-size:15.0pt;font-family:"Calibri","sans-serif";color:black"><o:p> </o:p></span></p>
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<span style="font-size:15.0pt;font-family:"Calibri","sans-serif";color:black"><o:p> </o:p></span></p>
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<span style="font-size:15.0pt;font-family:"Calibri","sans-serif";color:black">You can find the latest version of the USLP white book post telecon 2 on the CWE under:<o:p></o:p></span></p>
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<span style="font-size:15.0pt;font-family:"Calibri","sans-serif";color:black"><a href="http://tinyurl.com/jf9j6u3">http://tinyurl.com/jf9j6u3</a>
<o:p></o:p></span></p>
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<span style="font-size:15.0pt;font-family:"Calibri","sans-serif";color:black"><o:p> </o:p></span></p>
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<span style="font-size:15.0pt;font-family:"Calibri","sans-serif";color:black">It contains the date feb 9 and post telecon 2 in the word file name.<o:p></o:p></span></p>
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<span style="font-size:15.0pt;font-family:"Calibri","sans-serif";color:black"><o:p> </o:p></span></p>
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<span style="font-size:15.0pt;font-family:"Calibri","sans-serif";color:black">Topic 1 (Section 2 review) is spearheaded by Gian Paolo whose comments you will find in the CWE under:<o:p></o:p></span></p>
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<span style="font-size:15.0pt;font-family:"Calibri","sans-serif";color:black"><o:p> </o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black"> </span><span style="font-size:15.0pt;font-family:"Calibri","sans-serif";color:black"><a href="http://tinyurl.com/jf9j6u3"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">http://tinyurl.com/jf9j6u3</span></a></span><span style="font-size:13.5pt;font-family:"Calibri","sans-serif";color:black"> </span><span style="font-size:15.0pt;font-family:"Calibri","sans-serif";color:black"><o:p></o:p></span></p>
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<span style="font-size:15.0pt;font-family:"Calibri","sans-serif";color:black"><o:p> </o:p></span></p>
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<span style="font-size:13.5pt;font-family:"Calibri","sans-serif";color:black">At least two key questions need to be discussed by SLP WG concerning the review of Section 2. They are:</span><span style="font-size:15.0pt;font-family:"Calibri","sans-serif";color:black"><o:p></o:p></span></p>
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<span style="font-size:15.0pt;font-family:"Calibri","sans-serif";color:black"><o:p> </o:p></span></p>
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<span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black">1) Shall USLP retain the TC Coding capability that a protocol data unit transferred can contain several frames?</span><span style="font-size:13.5pt;font-family:"Calibri","sans-serif";color:black"> </span><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black"><br>
The fact that TC coding allows it does not exclude a possible limitation on the USLP side (e.g. SLE FSP explicitly forbids the option of including several TC frames in a CLTU).</span><span style="font-size:13.5pt;font-family:"Calibri","sans-serif";color:black"> </span><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black"><br>
We shall remember that several frames in a CLTU does decrease performance.</span><span style="font-size:13.5pt;font-family:"Calibri","sans-serif";color:black"> </span><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black"><br>
2) Shall any reference to Proximity-1 coding be removed from the USLP Blue Book as long as there is no agreed adaptation for that blue book?</span><span style="font-size:13.5pt;font-family:"Calibri","sans-serif";color:black"> </span><span style="font-size:15.0pt;font-family:"Calibri","sans-serif";color:black"><o:p></o:p></span></p>
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<span style="font-size:15.0pt;font-family:"Calibri","sans-serif";color:black">Note: NASA has submitted an agenda item to the C&S WG chairman to describe changes to the </span><span style="font-size:13.5pt;font-family:"Calibri","sans-serif";color:black">CCSDS
211.2-B-2 (Prox-1 C&S Blue Book) including CWE project details to allow USLP transfer frames over the Proximity link.</span><span style="font-size:15.0pt;font-family:"Calibri","sans-serif";color:black"><o:p></o:p></span></p>
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<span style="font-size:15.0pt;font-family:"Calibri","sans-serif";color:black"><o:p> </o:p></span></p>
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<span style="font-size:15.0pt;font-family:"Calibri","sans-serif";color:black"><o:p> </o:p></span></p>
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<span style="font-size:15.0pt;font-family:"Calibri","sans-serif";color:black">Topic 2 (On-demand Insert Service) is spearheaded by Ed Greenberg. The post telecon 2 white book contains trial sections describing and standardizing the two types of Insert Service.
The concept is below:<o:p></o:p></span></p>
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<span style="font-size:15.0pt;font-family:"Calibri","sans-serif";color:black"><o:p> </o:p></span></p>
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<span style="font-size:15.0pt;font-family:"Calibri","sans-serif";color:black">The concept of the two types of Insert Service follows:<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:black">USLP provides two complementary types of Insert Service: a) Isochronous and b) On-demand. Only one Insert Service type is allowed on a Physical Channel at any given time.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">The Isochronous Insert Service provides transfer of private, fixed-length, octet-aligned service data units across a space link in a mode which efficiently utilizes the space link transmission resources at relatively
low data rates. The service is unidirectional, periodic, and sequence-preserving. The service does not guarantee completeness, but may signal gaps in the sequence of service data units delivered to a receiving user.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">For a given service instance, only one user, identified with the Physical Channel Name of the Physical Channel, can use this service on a Physical Channel. Service data units from different users are not multiplexed
together within one Physical Channel. The presence of the Insert Zone is signaled by Managed Parameters.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black;letter-spacing:-.1pt">The On-demand Insert Service provides the optional transfer of private, variable length, octet-aligned service data units across a space link in an episodic manner. The service is unidirectional,
asynchronous, and non-sequence preserving. The Insert Zone length may vary between 1 and 255 octets and is specified in the first octet of the Insert Zone. The presence of the on-demand Insert Zone is signaled by the On-demand IZ flag in the TF header.</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black;letter-spacing:-.1pt">Multiple users may use this on-demand Insert Service on a Master Channel, identified with the VCID of the frame which contains the On-demand IZ flag set to ‘1’.</span><span style="color:black"><o:p></o:p></span></p>
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<span style="font-size:15.0pt;font-family:"Calibri","sans-serif";color:black"><o:p> </o:p></span></p>
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<span style="font-size:15.0pt;font-family:"Calibri","sans-serif";color:black"><o:p> </o:p></span></p>
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<span style="font-size:15.0pt;font-family:"Calibri","sans-serif";color:black">Best regards,<o:p></o:p></span></p>
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<span style="font-size:15.0pt;font-family:"Calibri","sans-serif";color:black">Greg <o:p></o:p></span></p>
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<span style="font-size:15.0pt;font-family:"Calibri","sans-serif";color:black">Chairman SLS-SLP WG <o:p></o:p></span></p>
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