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BRAN#27 Meeting Report to TGh Chair

This report provides an overview of the topics discussed at the BRAN#27 meeting, including the Harmonised Standard, DFS Framework Proposal, and implications for TGh work.

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BRAN#27 Meeting Report to TGh Chair

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  1. BRAN#27 Report to TGh Mika Kasslin TGh chair Mika Kasslin, Nokia

  2. Content • BRAN#27 topics • Meeting results • Harmonised Standard • DFS Framework Proposal • Author’s view on the status • Implications to TGh work • Agenda items for the St.Louis meeting Mika Kasslin, Nokia

  3. TGh related groups • The Harmonised Standard (HS) group had four meetings • Agenda in BRAN27d033r1 • Closing report BRAN27d066 • The HiperLAN (HL) Spectrum Group had five meetings • Agenda in BRAN27d043 • Tentative meeting report in BRAN27d097 Mika Kasslin, Nokia

  4. The topics of BRAN#27 1) Harmonised Standard • Review of the draft HS v0_h • ”Maximum of minimum” power requirement (TPC) 2) DFS Framework Proposal • IEEE 802 proposal as a liaison • RLAN DFS framework proposal drafting Mika Kasslin, Nokia

  5. 1) Harmonised Standard • The only topic was the one discussed also in the Dallas 802.11 meeting • TPC related ”Minimum output power” requirement • Both the phrase and the definition in v0_h misleading and will be rephrased • A proposal in revised draft v0_i, BRAN27d074 • No changes to the requirement itself • 6 dB still working assumption • Timeline of the HS approval approved • Annex in the closing report (BRAN27d066) Mika Kasslin, Nokia

  6. 2) DFS Framework • The main topic in the Spectrum Group • The IEEE 802 proposal was presented and discussed extensively • The more advanced DFS method proposed was well-received • Ran out of time in preparing a proposal of our own • No real conclusions, a very draft working document (BRAN27d072, Draft LS to JPT5G v3) • The drafting group will continue creating a RLAN proposal to JPT5G for their meeting in March 25-27 • Teleconferences every Tuesday Mika Kasslin, Nokia

  7. 2) DFS Framework Author’s view on the status: • RLAN community has a common goal • Requirements in the JPT5G proposal far too tight • The framework has to provide flexibility in implementation • The RLAN framework proposal will have • just basic requirements, and • few examples of mechanisms which can be used in DFS implementation • silent periods for radar measurements • radar detection during normal operation • etc. • should also have some simulation results on radar detection performance Mika Kasslin, Nokia

  8. 2) DFS Framework Reminder • The proposal will be sent to JPT5G, which is preparing European views on the agenda item 1.5 of WRC-2003 • Possibly and hopefully helps in getting global spectrum allocation for 5 GHz RLANs • Separate from the HS work done in BRAN • HS will go through a 60-day vote in which national standards organizations are voting • JPT5G ”not interested” on the HS Mika Kasslin, Nokia

  9. Implications to TGh? How to proceed? Since • DFS Framework is beyond the scope of our task, which is to develop a DFS mechanism that provides for radar detection • Basic requirements are clear enough • Methods to silence and vacate channel • Methods to measure and assess channel conditions • TGh should not standardize DFS algorithm TGh should • Continue with its task, which is to standardize DFS and TPC mechanisms and capabilities, bearing all the time in mind • flexibility needed for possible changes in requirement details • ”good engineering” Mika Kasslin, Nokia

  10. St.Louis agenda items • Joint meeting with R-Reg (1.5 h) • Matters arising from the DFS framework • TPC review (3.5 h) • Confirm results of the Dallas meeting • Possible new contributions • DFS review (20 h) • Frame descriptions • DFS procedure description => New draft to WG LB Mika Kasslin, Nokia

  11. FYI: How to download BRAN documents? All the meeting documents can be found in address http://www.ieee802.org/11/private/ETSI_documents/BRAN/Docfile Enter IEEE members only site Username/Password, when requested BRAN#27 documents are in BRAN27 directory Mika Kasslin, Nokia

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