March 2007 doc IEEE 802 11 070405 r

March 2007 doc. : IEEE 802. 11 -07/0405 r 1 Coex Ad Hoc March Orlando Agenda and Report Authors: Date: 2007 -03 -13 Notice: This document has been prepared to assist IEEE 802. 11. It is offered as a basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in this document is subject to change in form and content after further study. The contributor(s) reserve(s) the right to add, amend or withdraw material contained herein. Release: The contributor grants a free, irrevocable license to the IEEE to incorporate material contained in this contribution, and any modifications thereof, in the creation of an IEEE Standards publication; to copyright in the IEEE’s name any IEEE Standards publication even though it may include portions of this contribution; and at the IEEE’s sole discretion to permit others to reproduce in whole or in part the resulting IEEE Standards publication. The contributor also acknowledges and accepts that this contribution may be made public by IEEE 802. 11. Patent Policy and Procedures: The contributor is familiar with the IEEE 802 Patent Policy and Procedures <http: // ieee 802. org/guides/bylaws/sb-bylaws. pdf>, including the statement "IEEE standards may include the known use of patent(s), including patent applications, provided the IEEE receives assurance from the patent holder or applicant with respect to patents essential for compliance with both mandatory and optional portions of the standard. " Early disclosure to the Working Group of patent information that might be relevant to the standard is essential to reduce the possibility for delays in the development process and increase the likelihood that the draft publication will be approved for publication. Please notify the Chair <stuart@ok-brit. com> as early as possible, in written or electronic form, if patented technology (or technology under patent application) might be incorporated into a draft standard being developed within the IEEE 802. 11 Working Group. If you have questions, contact the IEEE Patent Committee Administrator at <patcom@ieee. org>. Submission 1 Eldad Perahia (Intel)

March 2007 doc. : IEEE 802. 11 -07/0405 r 1 Abstract Coex Ad Hoc in March Orlando agenda and report regarding comment resolution of LB 97 (802. 11 n), including straw polls Submission 2 Eldad Perahia (Intel)

March 2007 doc. : IEEE 802. 11 -07/0405 r 1 Overview • ~500 comments in Coexistence Ad Hoc – The new Coex Ad Hoc spreadsheet is 11/07 -0339 • Create comment subgroups • Volunteers for comments • Submissions Submission 3 Eldad Perahia (Intel)

March 2007 doc. : IEEE 802. 11 -07/0405 r 1 Initial Process • Coex ad hoc chair created first cut at subgroups for comments (see next slides) • Please review subgroups and provide feedback for modifications to subgroups • We need volunteers for each subgroup • Comment group volunteers review the comments in their respective subgroup – may decide if CIDs do not belong, in which case the CIDs will be moved to another subgroup – Subgroups may be further subdivided and/or reassigned Submission 4 Eldad Perahia (Intel)

March 2007 doc. : IEEE 802. 11 -07/0405 r 1 Subgroups (1/2) • 40 -20 in 2. 4 GHz – – – • PCO – – – • 45 comments 9. 13. 4, 9. 13. 5 Yuichi ? ECSA – – – • 31 comments 11. 16 Tomo L-SIG TXOP – – – • 200 comments 9. 20. 4 Matt F. Clause 7 9 comments (but more may be transferred from Frame Format) Bjorn DSSS-CCK – – – Submission 9 comments 11. 15 Srini 5 Eldad Perahia (Intel)

March 2007 doc. : IEEE 802. 11 -07/0405 r 1 Subgroups (2/2) • DFS & channel selection – – – • Channel switching – – – • 14 comments 9. 20. 2, 9. 20. 3 Assaf 40/20 – – – • 37 comments 9. 20. 4 (not include 2. 4 GHz) Solomon CCA sensing – – – • 46 comments 11. 9. 7, 11. 9. 8 Bjorn 25 comments Miscellaneous 40/20 CIDs in 7. 3. 2. 50, 9. 20 Vinko Protection mechanisms – – – Submission 66 comments 7. 3. 2. 50, 9. 13 Srini 6 Eldad Perahia (Intel)

March 2007 doc. : IEEE 802. 11 -07/0405 r 1 Rules / Procedure • As a general rule, we will NOT be reviewing CIDs on a one by one basis • Resolution of comments will in most cases be based on submissions • Coex Ad Hoc chair will bring resolutions which passed by 75% or more for motion in TGn, with affirmation of Ad Hoc • Votes between 50% - 75% may be brought to TGn for further discussion and votes to break deadlock Submission 7 Eldad Perahia (Intel)

March 2007 doc. : IEEE 802. 11 -07/0405 r 1 Submissions Related to Comment Resolution • 11 -07 -0329 -02 -000 n-greenfield-mode-and-dfs Submission 8 Eldad Perahia (Intel)

March 2007 doc. : IEEE 802. 11 -07/0405 r 1 Straw Polls (1/2) • Greenfield transmissions shall be disallowed in channels and regulatory domains where DFS is required until: – 1. Acceptable methods of conveying Legacy 802. 11 a OBSS information to all the GF transmitting APs and their associated GF transmitting clients have been approved as IEEE draft text. – 2. Acceptable methods of conveying Legacy 802. 11 a OBSS information to GF transmitting clients in an Ad Hoc network have been approved as IEEE draft text. – 3. The vendor implementations of these solutions have been proven not to cause radar detection events on legacy 802. 11 a receivers. • Y: 12 • N: 15 • A: 21 Submission 9 Eldad Perahia (Intel)

March 2007 doc. : IEEE 802. 11 -07/0405 r 1 Strawpolls (2/2) • Do nothing until more investigation proves the GF/DFS problem exists. – Y: 20 – N: 14 – A: 21 Submission 10 Eldad Perahia (Intel)