07-apr-2014-cesg-1 gian paolo calzolari (ad) gilles moury (dad) fall 2014 meeting london (united...

07-Apr-2014-cesg-1

Gian Paolo Calzolari (AD)Gilles Moury (DAD)

Fall 2014 Meeting London (United Kingdom)

SPACE LINK SERVICES(SLS) AREA

Gippo / Gilles to update

07-Apr-2014-cesg-2

CURRENTLY ACTIVE WGs, BOFs & SIGs WITHIN AREA

1. RFM WG Radio Frequency & Modulation

2. C&S WG Coding & Synchronization

3. SLP WG Space Link Protocols

4. NGU WG Next Generation Uplink (No Meeting in London)

5. MHDC WG Multi/Hyperspectral Data Compression

6. SDLS WG Space Data Link Security (Joint with SEA)

7. OPT WG Optical Communications

SLS AREA REPORT

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SLS Area Report B. Meeting Demographics

Plenary C/S SLP RFM Optical OPT+C&S+RFM+SLP SDLS MHDC

ASI

CNES 3 2 2 3 4 3 2 3

CNSA 2 3 2 3 2 2 1

CSA 1

DLR 2 4 2 2 6 2 1 1

ESA 6 9 4 5 8 6 3 3

INPE

JAXA 2 1 7 2

NASA 5 6 7 3 11 5 4 3

RFSA 3 5 3 7 2 3 1

UKSA 1 1 1 1

Other* 1 1

TOTAL 24 29 22 24 41 24 14 10*South Korea

*South Korea

*1 NASA via telecon

Meeting Duration 0.5 1.5 1.5 1.5 3.5 0.5 2 2.5

Agency Diversity 8 6 8 7 8 8 8 4

07-Apr-2014-cesg-4

SLS AREA REPORTRadio Frequency and Modulation (RFM) WG – Progress Summary

1. Recommendations on high rate telemetry and PN ranging (New)• RIDs to RED recommendations 2.4.22A/B received under agency review 401.0-RP-24.1 disposed of; RECs

ready for CCSDS publication• Accompanying draft GREEN book discussed, finalization expected in 1-2 meetings (Spring-Fall 2015)

2. Recommendations on 26 GHz modulations for EESS (New)• WHITE-2 recommendation 2.4.23 discussed, RED version expected in 2 meetings (Fall 2015)

3. Recommendation on 8 GHz modulation for EESS (Update including Higher Order Modulations)• Work will resume when SFCG response is received (August 2015) and in synch with 26 GHz

recommendation

4. Recommendation on modulation losses due to ranging signals (Update)• RIDs to PINK recommendation 4.1.5 received under agency review 401.0-RP-24.1 disposed of; additional

editorial discovered; REC ready for CCSDS publication

5. 5-years review of Bandwidth-efficient modulation GB (413.0-G-2)• Some additions due to new/modified RECs identified; does not make sense to start review before

Spring 2016 due to on-going work 6. PCOM GB (New)

• Draft book discussed. Finalization was expected by Fall 2015. Only CNES has resources to continue this work and therefore CNES is against freezing this work and resuming it later. ESA withdraws monitoring role in this project only one Agency providing resources for this project.

07-Apr-2014-cesg-5

RFM WG Summary

SLS AREA REPORT

status: OK CAUTION PROBLEM

comment: Good progress PCOM Green Book

RFM WG – ResolutionsRecommendations on rangingPublish new issue of 401.0-B with

- New GMSK+PN RNG recs 2.4.22A/B;- Revised rec 4.1.5.

CESG position on PCOM ProblemCESG consider that, if it is confirmed that only Agency works on this book, technical quality cannot be guaranteed. CMC to advise.

07-Apr-2014-cesg-6

RFM WG Issue• The schedule for the Spring 2015 meeting at Caltech in Pasadena (March 2015) is

problematic. Both chairman and vice-chairman of the RFM WG will have to attend ITU CPM-15 meeting in Geneva.

• The RFM WG current focus is on GMSK+PN ranging, and on 26 GHz modulations for EESS along with VCM/ACM. The latter is a joint activity with the C&S WG.

• NASA has proposed to make available facilities in Pasadena for both RFM and C&S WG meetings on May 5-7. Other dates were investigated but no other solution could be found.

• Opposition to splitting the SLS WGs meetings has been expressed by CNES delegates. The FSA delegates stated that this is inconvenient to them but will not oppose it (attendance will depend on agendas and on visas.) DLR delegates stated that there are no problems with the May dates.

• CNES offered to host the meeting in Toulouse in May. This will be investigated.

• Additionally, the CMC meeting is planned for May 18 so there is sufficient time to report back the progress to CMC.

SLS AREA REPORT

07-Apr-2014-cesg-7

C&S: Coding & Synchronization WG - Working Group Summary progress (1 of 3)

Uplink codes

Choice of new codes for the update of 231.0-B confirmed by WG: binary LDPC (64,128) and (256,512)

Good progress on the definition of start sequence and CLTU termination strategy for the new codes (to be completed by Spring 2015)

Uplink codes Orange Book

WG comments provided before the meeting and resolved by NASA and DLR

New version to tackle the remaining comments to be provided by end of November, a resolution for publication will follow.

Sliced data transfer in 131.0 Blue Book

Good progress in the definition of the new feature, with good agreement on the changes required in 131.0

Proposed pink sheet will be circulated to the WG for comments

SLS AREA REPORT

07-Apr-2014-cesg-8


VCM Magenta Book

Good progress on the Magenta book for VCM

Structure of the book agreed at WG level (together with RFM WG).

A new version will be provided by February, for commenting and finally discussion at the Spring 2015 meeting.

Architecture for high data rate coded QPSK modulation

WG confirmed inclusion of the relevant material in the Green Book 130.1-G A new project for the formal justification of the work is still needed

SLS AREA REPORT

07-Apr-2014-cesg-9


(Long) Erasures Codes

DLR Orange Book approved and published

A new project will be created for starting the work on a Blue Book for Erasure coding with NASA and DLR contributing Agencies.

SLS-C&S General Status

SLS AREA REPORT


comment: Good progress

07-Apr-2014-cesg-10

SLS Space Link Protocols (SLP) WG

Goals:1. Ensure consensus has been achieved within the WG to publish the

updated TM, AOS, and TC Space Data Link protocols concurrent with SDLS blue book release.

2. Review updates required to CCSDS 130.2-G-2 Space Data Link Protocols to be in sync with emerging SDLS protocol blue book.

3. Review SDLS OCF type 2 report to determine when this report type should appear in AOS and TM.

4. Review the Unified Space Data Link Protocol GB with a focus on coming to a consensus on a concise and comprehensive set of requirements including the interfaces to the immediate lower and upper layers and determine if the proposed protocol satisfies the requirements.



SLS AREA REPORT

07-Apr-2014-cesg-11

SLP WG Summary Progress:• Consensus was achieved in publishing the updates to the TM, AOS,

and TC Space Data Link Protocol books in sync with the 1st release of the SDLS blue book. Only small updates required by secretariat due to consistent use of transfer frame definition required.

• WG generated a summary of its comments back to the SLP WG for final review of CCSDS 130.2-G-2 Space Data Link Protocols update. To be published (closely) with release of SDLS and TM, AOS, TC updates above.

• A common definition for transfer frame was selected to be reflected in SANA and the link layer books.

• Consensus was achieved on the USLP requirements, features, and format was presented. Further progress was made on firming up the fundamental set of USLP requirements including the interface requirements both to the immediate lower and higher layers and determining if the protocol succeeds in providing the needed upgrades.

SLS AREA REPORT

07-Apr-2014-cesg-12

SLS AREA REPORT

SLS-SLP WG (cnt’d)Planning:• Expect joint publication of TM/TC/AOS and SDLS protocols

by 1Q/2015. • Before at Spring 2015 meeting:

• Issue refined USLP requirements within 2nd draft USLP GB.• Issue 1st draft version of USLP White Book.• Issue updated version of CCSDS 130.2-G-2 Space Data Link

Protocols GB.

Resolutions:• Request that the Area Director forward to CESG a resolution to publish

the updated TM, TC, AOS Space Link Protocols based upon both approved SDLS changes and the already CMC approved changes accumulated over the years.

• Note: pending slight updates to the link layer documents due to the agreement on transfer frame definition.

07-Apr-2014-cesg-13

Next Generation Uplink (NGU)

Goal:• Publish the NGU Green Book on functionality, performance,

application profiles, trade offs, etc. for Next Generation Uplink


comment: Book Published WG

Closed

SLS AREA REPORT

NGU WG Summary Progress

• CCSDS 230.2-G-1 “Next Generation Uplink. Green Book. Issue 1” published July 2014.

• CMC-P-2014-10-004 Completion of the Next Generation Uplink (NGU) WG Approved.

07-Apr-2014-cesg-14

Multispectral & Hyperspectral Data Compression (MHDC) WG1. New 122.1-B: Spectral pre-processing transform stage to extend 122.0-B to support

multispectral & hyperspectral images• Achieved consensus on several features of the emerging standard that had previously been under

debate

• Established low-complexity approach for a bit-accurate “default” method of implementing one of the supported transforms, and plans to finalize the details of this approach

• Cross-verification of transform specifications approaching completion

2. New 120.2-G Lossless Multispectral & Hyperspectral Image Compression Green Book:• Text produced for all sections that were previously incomplete; reviewed remarks on this new text.

Reviewers assigned to resolve remaining issues identified.

3. CCSDS-120.1-G “Image Data Compression”: handful of corrections identified WG Resolves to update the book

Working Group Status: Active X Idle ____



SLS AREA REPORT

07-Apr-2014-cesg-15

SLS AREA REPORTMHDC WG (con’t)Problems and Issues:• None

Planning :• 122.1-B: Cross-verification of transform stage expected January 2015. Complete cross-verification expected

June 2015.

• Issue 2 of 122.0-B Image Data Compression: essentially complete. WG will hold onto current draft in case further issues are identified as necessary to support the emerging 122.1-B.

• 120.2-G Lossless Multispectral & Hyperspectral Image Compression: Reviewers assigned to resolve remaining issues identified and produce revised text and, consolidation these inputs. Expect to be ready for publication Poll shortly after next meeting.

Planning : Future Work• Green Book for new CCSDS-122.1-B

• Near-Lossless extension of CCSDS-123.0-B “Lossless Multispectral & Hyperspectral Image Compression”

• Leverages existing CCSDS-123.0-B standard to provide a very low complexity compressor for missions in need of lossy but high fidelity compression

• Reconfirmation reviews:• CCSDS-121.0-B-2: May 2017

• CCSDS-123.0-B-1: May 2017

• CCSDS-120.0-G-3: April 2018

07-Apr-2014-cesg-16

Space Data Link Security (SDLS) WGWorking Group Status: Active - Progress report:

1. SDLS core protocol• SDLS red-4 book: includes all RIDs dispositions from Agency Review-3. Final version

delivered to CCSDS editor. Awaiting completion of interoperability testing• Interoperability testing: performed between CNES and ESA independent implementations.

80% complete. Missing testing of SDLS over AOS to be prototyped by CNES and NASA.• SDLS core protocol green book : review of existing text. Still a few missing subsections that

should be completed before next meeting.

2. SDLS extended procedures• Agreed on formatting rules for SDLS directives and reports messages• Agreed on Monitoring & Control service directives & reports• Agreed on content of CLSR (Type-2 OCF) for real-time reporting of SDLS• Agreed on the level of details of extended procedures services • A baseline configuration will be specified to allow interoperability at bit level for extended

procedures.

SLS AREA REPORT

07-Apr-2014-cesg-17

SLS AREA REPORT

Space Data Link Security (SDLS) protocol (cont’d)Problems and Issues:• None : interoperability testing for core protocol performed for TM and TC by ESA and

CNES. NASA committed resources to “SDLS over AOS” prototyping allowing interoperability testing with CNES implementation.



Planning:SDLS core protocol:

• Red-4 finalized – ready for publication as Blue Book• Interoperability testing:

• complete 80% - awaiting testing over AOS - target completion date: Feb2015• Blue book publication: target 1Q2015 once interoperability testing completed

• SDLS extended procedures:• White book V1 completed : spring 2015• Red book 1 (including baseline configuration): Spring 2016

07-Apr-2014-cesg-18

SLS-OPT: Optical Communications Working Group (1 of 5)Problem and Issues:


comment: Good Progress overall, especially on the Green Book for Real-Time Weather and Atmospheric Data

Blue Books Issue:• NASA stated that

the current plans are unacceptable.

• ESA/DLR considers this a change from previous agreement.

SLS AREA REPORT

Planning:• The schedule for the Blue Books were adjusted to match the current productivity

of the working group• It was reported in the spring that the Working Group thought the original

schedules were too optimistic. However, ESA/DLR input delivered.• The Optical Communications Working Group holds monthly video

teleconference meetingsPlanning for Spring 2015 Face-to-Face Meeting:• Review of the two proposed Draft 1 Blue Books with updated technical

information

07-Apr-2014-cesg-19

SLS-OPT: Optical Communications Working Group (2 of 5)

SLS AREA REPORT

Summary of Progress:• Reached an agreement that the comments on the first draft of the Green Book on

Real-Time Weather and Atmospheric Data are due on 8 January 2015• DLR/IKN (Dirk Giggenbach) has agreed to be the “leader” in developing the Low

Complexity On-Off Keying proposal for the Blue Books.• The new schedules for the two Blue Books and two Green Books have the

following dates for submission to the Area Director for approval:• Green Book on Real-Time Weather and Atmospheric Data: 30 November

2015• All other books for approved CWE Projects: 28 February 2016

07-Apr-2014-cesg-20


SLS AREA REPORT

OPT Blue Books Issue (chart 1 of 3):BACKGROUND: There are two Approved CWE Projects for Blue Books

• Optical Communications Physical Layer Blue Book, and• Optical Communications Coding & Synchronization Blue BookWithin each book, THREE “sections” - section 1, 2 and 3 may contain ore or more options – are expected:

(1) High Data Rate(2) High Photon Efficiency(3) Low Implementation Complexity

For the “High Data Rate” section two options are currently proposeda) Option 1: ESA / DLR proposalb) Option 2: NASA proposal

The Working Group reached no consensus on selecting only one of those two as unique CCSDS option for the High Data Rate scenario.

NASA, ESA/DLR, and CNES positions are presented in the next two slides.

07-Apr-2014-cesg-21


SLS AREA REPORT

OPT Blue Books Issue (chart 2 of 3):NASA POSITION• NASA stated that there should be a single “CCSDS recommendation ” for High

Data Rate.• Not an ESA / DLR recommendation and separate a NASA recommendation• The recommendation should support space-to-space, space-to-air, and space-

to-ground links • NASA is willing to make changes to the NASA proposal based on technical merit so

that it can become the single CCSDS recommendation.• NASA also stated that acceptable options are:

• to release the Blue Books with only TWO sections for High Photon Efficiency and Low Implementation Complexity (i.e. without the High Data Rate section).

• to release TWO Blue Books: one just for High Photon Efficiency and a separate Blue Book just for Low Implementation Complexity while this issue is worked.

• To release TWO CCSDS Orange Books with High Data Ratea. High Data Rate with ESA / DLR proposalb. High Data Rate with NASA proposal

07-Apr-2014-cesg-22


SLS AREA REPORT

OPT Blue Books Issue (chart 3 of 3):ESA/DLR POSITION• ESA/DLR consider the new NASA position a major deviation from the previous

agreements (IOAG, IOP-3, and CCSDS)• ESA/DLR would like to stick with the Blue Book layering structure as agreed in the

charter.• ESA/DLR would like to create a first set of recommendations encompassing all

three regimes.• ESA/DLR is prepared to accept having in the Blue Books two options for the high

data rate regime.

CNES POSITION• Ideally, CNES would like CCSDS works on a single worldwide interoperable high

rate recommendation that supports the LEO-to-Earth scenario, among other scenarios.

07-Apr-2014-cesg-23

RFM WG Radio Frequency & Modulation• (New) Recommendation 2.4.22A/B on high rate telemetry and PN ranging ready for publication.• (New) Recommendations 2.4.23 on 26 GHz modulations for EESS expected RED for Fall 2015.• Recommendation 4.1.5 on modulation losses due to ranging signals ready for publication.• Five years review of 413.0-G-2 Bandwidth-efficient modulation GB: to start in Spring 2016 after

work on new/modified RECs finalized.• PCOM GB expected by Fall 2015. However all Agencies but CNES expressed preference for

freezing this work and resuming it later.• Request to delay to May 2015 (before CMC) the Spring Meeting, together with C&S WG.

C&S WG Coding & Synchronization• Selection of new uplink codes for 231.0-B (TC Coding) confirmed, work on-going for CLTU

delimitation procedures.• NASA & DLR Orange Book on “Short Block length LDPC code for TC” going through last update• WG agreed on the structure of draft pink sheets to 131.0-B (TM Coding) to introduce LDPC slicing.• WG agreed on the structure of the VCM Magenta book, new draft to be distributed and

discussed by Spring 2015.• DLR Orange Book on Erasure Codes published.• NASA and DLR confirmed support to work for Blue Book for Long Erasure Codes (concept paper

under way).

NGU WG Next Generation Uplink• CCSDS 230.2-G-1 “Next Generation Uplink. Green Book. Issue 1” published July 2014.• CMC-P-2014-10-004 Completion of the Next Generation Uplink (NGU) WG Approved.

SLS AREA REPORT – SUMMARY (1 of 3)

07-Apr-2014-cesg-24

SLS AREA REPORT – SUMMARY (2 of 3)SLP WG Space Link Protocols• Resolution to publish the updates to the TM, AOS, and TC Space Data Link Protocol books in sync with

the 1st release of the SDLS blue book generated.• New release of CCSDS 130.2-G-2 Space Data Link Protocols expected before Spring 2015 meeting.• Progress was achieved on refining what the key set of requirements are for the USLP including the

interface requirements to the immediate upper and lower protocol stack levels. Further refinement of the USLP GB along with a draft USLP White Book is planned for Spring 2015.

MHDC WGMultispectral & Hyperspectral Data Compression • New 122.1-B: Spectral pre-processing transform stage to extend 122.0-B to support multispectral &

hyperspectral images: specification progressing for the recommended transforms including low complexity option. Cross-verification of transforms to be performed 1S2015.

• New 120.2-G Lossless Multispectral & Hyperspectral Image Compression Green Book: nearing completion. Internal review on-going.

• New project proposal: Near-Lossless extension of CCSDS-123.0-B “Lossless Multispectral & Hyperspectral Image Compression” leveraging existing CCSDS-123.0-B standard to provide a very low complexity compressor for missions in need of lossy but high fidelity compression

OPT WG Optical Communications • Blue Book for Optical Communications (Physical Layer; Coding & Synchronization):

• 2 competing proposals for the “High Data Rate” mission profile. No consensus in the WG with respect to allowing one or two options for this profile. Way forward to be resolved by the WG

• DLR taking the leadership to develop the specification for the “Low Complexity” mission profile• Green Book for Real Time Weather and Atmospheric Characterization Data: internal review of 1st draft

on-going.

07-Apr-2014-cesg-25

SDLS WG Space Data Link Security• SDLS core protocol

• SDLS red-4 book: includes all RIDs dispositions from Agency Review-3. Final version delivered to CCSDS editor. Awaiting completion of interoperability testing.

• Interoperability testing: 80% complete. Missing 20% should be completed by Feb2015, enabling SDLS blue book publication by 1Q2015

• SDLS core protocol green book : 80% complete. Priority work for the next 6-month period. Publication expected 2S2015.

• SDLS extended procedures• Agreed on formatting rules for SDLS directives and reports messages• Agreed on Monitoring & Control service directives & reports• A baseline configuration will be specified to allow interoperability at bit level for

extended procedures.• Objective: Complete white book – spring 2015; Red-1 for Agency Review - spring 2016

• SLS Area want to thank CalTech and NASA/JPL for the excellent accommodation and facilities.

SLS AREA REPORT – SUMMARY (3 of 3)

07-apr-2014-cesg-1 gian paolo calzolari (ad) gilles moury (dad) fall 2014 meeting london (united...

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