1. Atlanta, Georgia, USA, 16 September 2005
SLS Area Plenary
Atlanta, Georgia, USA, 16 September 2005
16 September 2005

2. Agenda SUMMARY TECHNICAL STATUS OF EACH WG & BOF
CROSS-AREA TECHNICAL ISSUES
OTHER ISSUES AND CONCERNS
PROPOSED AREA RESOLUTIONS/ACTION ITEMS
16 September 2005

3. Current CCSDS Working Groups
16 September 2005

4. High Rate Uplink BOF SLS AREA REPORT Goal:
Provide technical recommendations to the CIS-Lunar WG in the areas of RF&Modulation, Coding, and Link Layer protocols in support of the Lunar Exploration Missions.
Address the high rate uplink requirements from the IOAG.
BOF Status: Active X Idle ____
BOF Summary Situation : Convert to a WG in support of CIS-Lunar
status: OK
CAUTION
PROBLEM
comment:
Good progress
16 September 2005

5. High Rate Uplink BOF (cnt’d) BOF Summary progress:
SLS AREA REPORT
High Rate Uplink BOF (cnt’d)
BOF Summary progress:
This BOF has provided a preliminary set of issues for the CIS-Lunar WG to respond to.
The draft WG charter will be updated to become the WG charter
16 September 2005

6. High Rate Uplink BOF (cnt’d) Problems and Issues:
SLS AREA REPORT
High Rate Uplink BOF (cnt’d)
Problems and Issues:
Without a focus on the RF, Coding, and Link layer problems of CIS-Lunar, the High Rate BOF’s problem domain would be too broad.
Once the needs of the CIS-Lunar WG are understood better, a High Rate Uplink WG charter can be more definitively formulated.
16 September 2005

7. High Rate Uplink BOF (cnt’d) Planning :
SLS AREA REPORT
High Rate Uplink BOF (cnt’d)
Planning :
Deliver the WG Charter Sept.30, 2005
Participate in CIS-Lunar Telecons, On-going,
16 September 2005

8. High Rate Uplink BOF (cnt’d) Resolutions :
SLS AREA REPORT
High Rate Uplink BOF (cnt’d)
Resolutions :
Request CESG to enable the formation of the High Rate Uplink WG in support of the CIS-Lunar WG objectives in the areas of RF&Modulation, Coding & Synchronization, and Link Layer ;
16 September 2005

9. IP over CCSDS Links BOF SLS AREA REPORT Goals:
Clearly articulate the need to transfer IPv4 and IPv6 datagrams over the four underlying internationally standardized CCSDS link layer protocols
Describe the standard CCSDS options for carrying IP datagrams within those CCSDS frames, including the mode where those IP datagrams are encapsulated within a specific HDLC serial bit stream for interfacing with a COTS router.
BOF Status: Active X Idle ____
BOF Summary Situation : There is consensus to form a WG
status: OK
CAUTION
PROBLEM
comment:
Good progress
16 September 2005

10. IP over CCSDS BOF (cnt’d)
SLS AREA REPORT
IP over CCSDS BOF (cnt’d)
BOF Summary progress:
This BOF has reviewed the Concept Paper i.e., draft White book towards the development of a Recommended Practice for how to guide the user in transferring IP over CCSDS links.
The draft WG charter will be updated to become the WG charter
16 September 2005

11. IP over CCSDS Links BOF (cnt’d) Problems and Issues:
SLS AREA REPORT
IP over CCSDS Links BOF (cnt’d)
Problems and Issues:
Unclear if the Encapsulation Packet Header needs to be modified to include an End-Destination Address for CIS-Lunar.
16 September 2005

12. IP over CCSDS WG (cnt’d) Planning :
SLS AREA REPORT
IP over CCSDS WG (cnt’d)
Planning :
Provide a WG Charter, Sept.30, 2005
Deliver CCSDS IP over CCSDS Recommended Practices White Book Oct 15, 2005
Participate in CIS-Lunar Telecons, On-going,
16 September 2005

13. IP over CCSDS Links BOF (cnt’d) Resolutions :
SLS AREA REPORT
IP over CCSDS Links BOF (cnt’d)
Resolutions :
Request CESG to enable the formation of the IP over CCSDS Links WG
16 September 2005

14. SLS-SLP WG SLS AREA REPORT Goal:
Dispose AOS Frame Sequence counter extension RID to Pink Sheet.
Discuss Encapsulation Header Pink Sheet (32-bit compatibility)
Discuss RID on Prox-1 Data Link Layer Pink Sheet (Frame Prioritization)
Pink Sheets to Space Link Identifiers
Discussion on comments to Link Layer Green books
BOF Status: Active X Idle ____
BOF Summary Situation:
status: OK
CAUTION
PROBLEM
comment:
Good progress
16 September 2005

15. SLS-SLP WG (cnt’d) SLS AREA REPORT SLS-SLP Summary progress:
JAXA RID to AOS Pink Sheet for Frame Sequence Counter Extension handled by using 4-bits from Signaling Field.
Encapsulation Packet Pink Sheet requires further agency review
CIS-Lunar requirements need to be evaluated
Need for protocol ID extension?
Prox-1 Data link layer frame prioritization adjusted to prevent data starvation case on the forward link during an unbalance link condition – requires new pink sheet for agency review
No RIDs to Space Link Identifiers – addition of Prox-1 well-known Port IDs and comments.
Takahiro’s Space Packet Protocol GB requires review from SIS area
16 September 2005

16. Need wider agency review of Encapsulation Packet Pink Sheet
SLS AREA REPORT
SLS-SLP WG (cnt’d)
Problems and Issues:
Need to update Encapsulation Packet Pink Sheet to incorporate more Protocol IDs
Need wider agency review of Encapsulation Packet Pink Sheet
16 September 2005

17. Anticipate further modification to Encapsulation Packet Sept.30, 2005
SLS AREA REPORT
SLS-SLP WG (cnt’d)
Planning :
Anticipate further modification to Encapsulation Packet Sept.30, 2005
Work with SIS area on Space Packet Protocol GB
Continue development of Prox-1 GB
16 September 2005

18. Request CESG approve Pink Sheet to Space Link Identifiers as is.
SLS AREA REPORT
SLS-SLP WG (cnt’d)
Resolutions :
Request CESG approve modified Pink Sheet to AOS specification for frame sequence count extension (use of 5 of 7 spare bits from signaling field);
Request CESG approve Pink Sheet to Space Link Identifiers as is.
16 September 2005

19. Prox-1 Build-2 WG SLS AREA REPORT Goal:
Provide a requirement in the Prox-1 Physical Layer for data rate stability: both short and long term
Address the RID on the Frame Priority within the Data Link layer of Proximity-1
WG Status: Active X Idle ____
WG Summary Situation:
status: OK
CAUTION
PROBLEM
comment:
Good progress
16 September 2005

20. Prox-1 Build-2 WG (cnt’d) WG Summary progress:
SLS AREA REPORT
Prox-1 Build-2 WG (cnt’d)
WG Summary progress:
Consensus on the value for the short and long term data rate stability requirements.
Consensus on the modified frame prioritization rules.
16 September 2005

21. Prox-1 Build-2 WG (cnt’d) Problems and Issues:
SLS AREA REPORT
Prox-1 Build-2 WG (cnt’d)
Problems and Issues:
Needed consensus for the value of the short term data rate stability requirement in the physical layer of Prox-1
Needed to modify the frame prioritization scheme in the Prox-1 data link layer due to the data frame starvation problem for unbalanced links.
16 September 2005

22. Prox-1 Build-2 WG (cnt’d) Planning :
SLS AREA REPORT
Prox-1 Build-2 WG (cnt’d)
Planning :
Monitor the progress of the proposed pink sheet to the Prox-1 Data link layer, June 2006
16 September 2005

23. Prox-1-Build-2 WG (cnt’d) Resolutions :
SLS AREA REPORT
Prox-1-Build-2 WG (cnt’d)
Resolutions :
Request CESG to approve Pink Sheet P-2.1 Dec that establishes the data rate stability requirements for Prox-1
16 September 2005

24. Data compression WG SLS AREA REPORT Goal:
Specify an image compression algorithm fulfilling identified space mission requirements
Develop a subsequent recommendation together with the supporting information (performances, usage, reference software, test data for compliance testing, …).
Working Group Status: Active X Idle ____
Working Group Summary Situation:
status: OK
CAUTION
PROBLEM
comment:
Good progress
16 September 2005

25. Data compression WG (cnt’d)
SLS AREA REPORT
Data compression WG (cnt’d)
Working Group Summary progress:
Red book issue 2 has been reviewed : 46 RIDS received and closed.
Update RB-2 with disposed RIDS and request for promotion to BB.
Green book is being assembled; editing leadership has been split among WG members; major chapters completed.
Complete GB draft WG review and request approval from CESG
Cross verification of recommendation near completion: 3 S/W under verification with 95% completion. Decision is to host JPL S/W at Open Channel S/W website which JPL has an agreement for open-source S/W.
Complete S/W cross-verification
Compression needs and on-going work presented by ESA, CSA, CNES and NASA JPL.
Three topics for potential BOFs will be considered, only one will be chosen before next meeting.
 Total 13 WG Action Items created
16 September 2005

26. Data compression WG (cnt’d) Problems and Issues:
SLS AREA REPORT
Data compression WG (cnt’d)
Problems and Issues:
None
16 September 2005

27. Data compression WG (cnt’d) Planning :
SLS AREA REPORT
Data compression WG (cnt’d)
Planning :
Complete S/W cross-verification Oct., 2005
Issue BLUE BOOK, Oct., 2005
Complete GREEN BOOK draft Feb., 2006
Release reference S/W, March, 2006
Issue GREEN BOOK, April, 2006
Begin agency review of B-1: Lossless Data Compression Blue Book issued 1997 for either confirmation, update or retirement, March, 2006
Decision on new Compression BOF (SAR, Multi/Hyper-Spectral, New Lossless), April 2006
16 September 2005

28. Data compression WG (cnt’d) Resolutions :
SLS AREA REPORT
Data compression WG (cnt’d)
Resolutions :
Given successful review of RB-2, WG will request promotion to BB after final update ;
WG will request area director to submit GB to CESG polling upon completion of the GB (04/2006) ;
WG will request agency review of updated CCSDS B-1;
WG request creation of new BOF on subjects to be chosen among three topics: SAR data compression, Multi/Hyper-spectral data compression and new general-purpose lossless compression;
WG request area director to invite CESG members to report on agency needs in data compression.
16 September 2005

29. SLS-TCC: Telecommand Channel Coding WG
SLS AREA REPORT
SLS-TCC: Telecommand Channel Coding WG
Goal: Development of a Telecommand Channel Coding Green Book.
Working Group Status: Active
Working Group Summary Situation:
Working Group Summary progress:
Green Book finalized.
Rids to BB 231 processed – Agreed to ask Technical Corrigendum instead of Pink Sheets Change previous resolution on the subject
status: OK
CAUTION
PROBLEM
comment:
Good progress
16 September 2005

30. SLS-C&S: Coding & Synchronization WG (1)
SLS AREA REPORT
SLS-C&S: Coding & Synchronization WG (1)
Goal : - Issue TM Channel Coding GB Issue new codes experimental (orange) book(s)
Working Group Status: Active
Working Group Summary Situation:
Working Group Summary progress :
See next slide
status: OK
CAUTION
PROBLEM
comment: X
16 September 2005

31. SLS-C&S: Coding & Synchronization WG (2)
SLS AREA REPORT
SLS-C&S: Coding & Synchronization WG (2)
Telemetry Channel Coding Green Book prepublication version provided by secretariat. A few minor changes agreed in this meeting (old resolution existed covering publication of GB)
Orange Book on GSFC LDPC Codes: Book was discussed, update to be performed according to comments received. Ready to be published.
Orange Book on JPL LDPC Codes: No update provided. Previous version considered “Ready for publication” by JPL
NASA official decision awaited w.r.t. the number of orange books (1 or 2) to be published
Orange Book on ESTEC SCCC: Initial Draft provided.
Report on Requirements from (closed) New Codes BOF presented.
16 September 2005

32. SLS-LEC: Long Erasure Codes (‘tornado codes’) BOF
SLS AREA REPORT
SLS-LEC: Long Erasure Codes (‘tornado codes’) BOF
Goal: Make, if conclusive, a proposal for the creation of a WG on application of long erasure-correction codes.
BOF Status : Active
BOF Summary Situation:
Working Group Summary progress:
NASA and ESA reports presented.
Draft Requirements for eventual WG identified (To Be Discussed).
Decision on creation of WG to be taken at Spring 2006 meeting.
Presentation to SDLP+MOIMS of LEC capabilities in spring 2006 if required to have feedback on mission scenarios&requirements
status: OK
CAUTION
PROBLEM
comment:
work in progress
16 September 2005

33. Cross-area technical issue
Secure communications
Need for secure RF&Mod recommended techniques ?
Need for secure data link protocols ?
Cislunar missions
Input expected from Cis-lunar space internetworking WG
Services & performances expected from layers 1 & 2
Critical as a starting point for high rate uplink WG
SIS area
Review by SIS of Space Packet Protocol GB needed
Interaction with SIS needed on encapsulation packet definition
Protocol ID extension, end-destination address
Inclusion of “encapsulation packet” rec. in IP-over-CCSDS link charter
Interpretation of APID
Old interpretation have been dropped in the restructuring of recommendations
16 September 2005

34. Other issues & concerns
IOAG resolutions :
Bandwidth efficient modulations
High rate telecommand for lunar & planetary missions
Delta-DOR ranging
Security & authentication
Launchers tracking & data acquisition
Other topics :
General approval of CCSDS web site and CWE
documents review and editing back on track
16 September 2005

35. Proposed area resolutions & action items
Res1 : request CESG to enable the creation of high rate uplink WG
Res 2 : Request CESG to enable the formation of the IP over CCSDS Links WG
Res3 : Request CESG approve modified Pink Sheet to AOS “extension of VC frame counter”
Res4 : Request CESG approve Pink Sheet to Space Link Identifiers as is.
Res5 : Request CESG to approve Pink Sheet P-2.1 Dec that establishes the data rate stability requirements for Prox-1
16 September 2005

36. Proposed area resolutions & action items
Res6 : Given successful review of Image Compression RB-2, request CESG to approve Image Compression recommendation as a blue book after final update
Res7 : request creation of new BOF on subjects to be chosen among three topics: SAR data compression, Multi/Hyper-spectral data compression or new general-purpose lossless compression
Res8 : Ask Technical Corrigendum for BB 231(TC channel coding & synchronization) instead of Pink Sheets
Res9 : request publication of TM Channel Coding GB
Res10 : request CESG approval of new codes Orange Book(s) from NASA
16 September 2005