1 / 17

Report to CCSDS/ PlaCom on SFCG/LMSG work progress

Report to CCSDS/ PlaCom on SFCG/LMSG work progress. Reply to SLS-PCOM AI-05 of Spring’11 Meeting Jean-Luc Gerner JLG Consulting/CNES Member of SFCG. Report to CCSDS/ PlaCom on SFCG/LMSG work progress.

penda
Download Presentation

Report to CCSDS/ PlaCom on SFCG/LMSG work progress

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Report to CCSDS/PlaCom on SFCG/LMSG work progress Reply to SLS-PCOM AI-05 of Spring’11 Meeting Jean-Luc Gerner JLG Consulting/CNES Member of SFCG

  2. Report to CCSDS/PlaCom on SFCG/LMSG work progress Within the SFCG, the Lunar-Mars Spectrum Group (LMSG) has the followingTORs (RES A-26-1):

  3. Report to CCSDS/PlaCom on SFCG/LMSG work progress The LMSG met on 8th June 2011, at the yearly meeting of the SFCG. The work concentrated on the review of three input documents: 31-18/D (NASA) DRAFT NEW REPORT: COMPATIBILITY STUDIES FOR COMMUNICATIONS IN THE LUNAR REGION 31-43/D (CNES) FREQUENCIES CONSIDERATION FOR COMMUNICATIONS IN THE LUNAR REGION 31-19/D (NASA) FREQUENCY ASSIGNMENT GUIDELINES FOR COMMUNICATIONS IN THE LUNAR REGION

  4. Report to CCSDS/PlaCom on SFCG/LMSG work progress 31-18/D (NASA) DRAFT NEW REPORT: COMPATIBILITY STUDIES FOR COMMUNICATIONS IN THE LUNAR REGION This document provided a consolidated SFCG baseline lunar communications service requirement. A compatibility study for identified lunar surface and Earth-based communication requirements, using the baseline service requirements, was included in this document. The LMSG considered that more work is needed to further mature the content of this proposed report. A new action item was agreed to capture this point.

  5. Report to CCSDS/PlaCom on SFCG/LMSG work progress 31-43/D (CNES) FREQUENCIES CONSIDERATION FOR COMMUNICATIONS IN THE LUNAR REGION This input document provided technical basis for Mobile Satellite Service (MSS) downlink S-Band 2483.5 – 2500 MHz and MSS uplink L-Band 1610 – 1626.5 MHz as suitable in the Lunar vicinity, for Orbit to Surface and Surface to Orbit communications. The LMSG agreed to incorporate these new bands under section 3.0 of the SFCG baseline lunar communications service requirements. This baseline will be used as a starting point for the new action item.

  6. Report to CCSDS/PlaCom on SFCG/LMSG work progress 31-19/D (NASA) FREQUENCY ASSIGNMENT GUIDELINES FOR COMMUNICATIONS IN THE LUNAR REGION This input contribution was proposing language for a SFCG recommendation on frequency usage for the lunar region based on multi-agency mission plans. Discussion and review of this document concluded that additional compatibility analysis is required to provide defined usage guidelines for each frequency bands, especially the non-SRS bands with special consideration of passive sensing protection and active sensing operations in the Lunar Region. The LMSG agreed to incorporate forward work into the new action item for the lunar region.

  7. Report to CCSDS/PlaCom on SFCG/LMSG work progress SFCG New Action Item (AI 31-09) SFCG developed a new AI under the subject of Radio Communication Frequency Allocation in the LunarRegion The AI is split into 4 subactions: Define system characterisctics for each type of link as per table beside Conduct compatibility analysis for non-SRS bands betweenlunarvicinity/surface operations and existing/allocated services and earth-basedoperations. Evaluateeachrecommendedfrequency band w.r.t. the protection of the SZM Submit a draftrecommendation on frequency usage for the lunarregion to SFCG-32

  8. Report to CCSDS/PlaCom on SFCG/LMSG work progress A draftrecommendationisattached to the AI, as workingmaterial, with the followingdraftrecommends: Table 1 providesrecommendedfrequency bands and Table 2 listslunar services baselinerequirements.

  9. Report to CCSDS/PlaCom on SFCG/LMSG work progress

  10. Report to CCSDS/PlaCom on SFCG/LMSG work progress

  11. Report to CCSDS/PlaCom on SFCG/LMSG work progress • Conclusion • SFCG has put in place the Lunar/Mars Spectrum Group to workat : • Identifyingspectrumneeds for future radio communication operations in the lunarregion • Selectingsuitablefrequency bands to covertheseneeds • For the SRS bands, ensuringpre-coordination of their use • For non-SRS bands, ensuringthatthereis no risk of interferinginto the Earthbasedusers of these bands • Evaluatingeachrecommendedfrequency band w.r.t. the protection of the SZM • CCSDS has the competence to contribute to thiswork • CNES has indicated intention to progress on surface-orbitcoms and report to CCSDS • Anyotheragencyvolunteering?

  12. Report to CCSDS/PlaCom on SFCG/LMSG work progress BACK-UP SLIDE CNES STUDIES

  13. Report to CCSDS/PlaCom on SFCG/LMSG work progress • Design choices for future planetary in-situ communication systems: • Lean wherever possible upondevelopment of terrestrialsystems • E.g. Wimax for surface coms • E.g. MSS for surface-orbitcoms • Identifynecessary adaptations to the specificneeds of planetarycoms • CNES approachis to leanuponGlobalstar MSS system design and technologies for surface-orbitcoms • CNES demonstratedthat a Globalstar-like system in the lunarregionwould not interferinto the existingGlobalstar system • Furtherworkisneeded to: • Consolidate surface-orbitcomsrequirements • Design a surface-orbitcoms system maximizing the reuse of terrestrial technologies, withspecial focus in this case on Globalstar MSS • Confirmno-interferenceintoterrestrial system

More Related