Coex Ad Hoc May Montreal Agenda and Report October 2006 doc.: IEEE 802.11-06/1560r1 May 2007 Coex Ad Hoc May Montreal Agenda and Report Date: 2007-05-09 Authors: 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:// ieee802.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>. Eldad Perahia (Intel) Matthew Fischer (Broadcom)

October 2006 doc.: IEEE 802.11-06/1560r1 May 2007 Abstract Coex Ad Hoc in May Montreal agenda and report regarding comment resolution of LB97 (802.11n), including straw polls Eldad Perahia (Intel) Matthew Fischer (Broadcom)

Overview Submissions Comment Resolution October 2006 doc.: IEEE 802.11-06/1560r1 May 2007 Overview Submissions Comment Resolution Latest version of spreadsheet: 07/0339r7 Eldad Perahia (Intel) Matthew Fischer (Broadcom)

October 2006 doc.: IEEE 802.11-06/1560r1 May 2007 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 Eldad Perahia (Intel) Matthew Fischer (Broadcom)

Subgroups (1/2) May 2007 October 2006 doc.: IEEE 802.11-06/1560r1 40-20 in 2.4GHz 240 comments 9.20.4 Matt F. PCO 31 comments 11.16 Tomo Will be prepared next week L-SIG TXOP 43 comments 9.13.4, 9.13.5 Yuichi ECSA Clause 7 11 comments Bjorn DSSS-CCK 9 comments 11.15 Srini Eldad Perahia (Intel) Matthew Fischer (Broadcom)

Subgroups (2/2) May 2007 October 2006 doc.: IEEE 802.11-06/1560r1 DFS & channel selection 46 comments 11.9.7, 11.9.8 Bjorn Channel switching 36 comments 9.20.4 (not include 2.4 GHz) Solomon July CCA sensing 15 comments 9.20.2, 9.20.3 Assaf 40/20 24 comments Miscellaneous 40/20 CIDs in 7.3.2.50, 9.20 Vinko Protection mechanisms 69 comments 7.3.2.50, 9.13 Srini Eldad Perahia (Intel) Matthew Fischer (Broadcom)

Submissions Related to Comment Resolution October 2006 doc.: IEEE 802.11-06/1560r1 May 2007 Submissions Related to Comment Resolution Matt F. 11-07-0614-00-000n-lb97-cid-75-20-40-coex.doc 11-07-0591-01-000n-LB97-CID-1832-Operating-Mode-Bits.doc Eldad 11-07-0623-00-000n-20-40-coex-in-2-4ghz.ppt Bjorn 11-07-0560-00-000n-lb97-coex-dfs-channel-selection-comments-resolutions.doc 11-07-0524-01-000n-lb97-coex-ecsa-comments-resolutions.doc Assaf 11-07-0568-00-000n-lb97-mac-cca-comments-resolutions.doc 11-07-0569-00-000n-lb97-double-cca-comments-resolution-doc.doc Vinko 11-7-611; present Th or Fri Red indicates completed submissions Eldad Perahia (Intel) Matthew Fischer (Broadcom)

Wed May 9 Agenda Submissions Old submission New submission May 2007 October 2006 doc.: IEEE 802.11-06/1560r1 May 2007 Wed May 9 Agenda Submissions Old submission 11-07-0568-00-000n-lb97-mac-cca-comments-resolutions.doc 11-07-0569-00-000n-lb97-double-cca-comments-resolution-doc.doc 11-07-0524-01-000n-lb97-coex-ecsa-comments-resolutions.doc New submission 11-07-0560-00-000n-lb97-coex-dfs-channel-selection-comments-resolutions.doc Eldad Perahia (Intel) Matthew Fischer (Broadcom)

October 2006 doc.: IEEE 802.11-06/1560r1 May 2007 Minutes on 07/0568 CID 70 Add sentence mentioning that OBSS is not synchronized Doug wants to think about it more, response by beginning of Friday Doug will provide submission in July (Th 5/10/07) CID 187 Do we need to add mitigation to reason? Reference Srini sims. CID 2963 George will provide submission in July. No objection to resolving non deferred CIDs with 07/568r2 and bringing to TGn Full for motion Eldad Perahia (Intel) Matthew Fischer (Broadcom)

October 2006 doc.: IEEE 802.11-06/1560r1 May 2007 Minutes on 07/0569 No objection to resolving CID 2470 with 07/569r2 and bringing to TGn Full for motion Eldad Perahia (Intel) Matthew Fischer (Broadcom)

October 2006 doc.: IEEE 802.11-06/1560r1 May 2007 Minutes on 07/0524 Modify “The TGn editor has removed E-CSA text from the 11n D2.01. No further action required.” to “Remove E-CSA text from 11n D2.0” in CIDs 294, 297, 2118, 2119 CID 3024 changed to defer No objection to resolving non deferred CIDs with 07/524r2 and bringing to TGn Full for motion Eldad Perahia (Intel) Matthew Fischer (Broadcom)

October 2006 doc.: IEEE 802.11-06/1560r1 May 2007 07/560r0 CID 651, 3003 change to Defer Possible resolution is reordering 11.9.7 and 11.9.8 Another Possible resolution is to add in 11.9.7 a reference to 11.9.8, after we see TGy changes to 11.9.7 CID 2572, 2575, 2893, 2894, 1770 Change to defer. Assign to Solomon CID 3279 Assign to Matt F. CID 589 Defer. Bjorn to ask Darwin to provide submission for draft text There is reason code field as part of DELTS frame format. Should be possible to add reason code there. Stopped at 1770, continue with 1870 Eldad Perahia (Intel) Matthew Fischer (Broadcom)

Thursday May 10 Agenda Submissions October 2006 doc.: IEEE 802.11-06/1560r1 May 2007 Thursday May 10 Agenda Submissions Continue with 11-07-0560-00-000n-lb97-coex-dfs-channel-selection-comments-resolutions.doc 11-07-0614-00-000n-lb97-cid-75-20-40-coex.doc Eldad Perahia (Intel) Matthew Fischer (Broadcom)

07/560r0 May 2007 Stopped at 1770 on Wed, continue with 1870 1870 2581 October 2006 doc.: IEEE 802.11-06/1560r1 May 2007 07/560r0 Stopped at 1770 on Wed, continue with 1870 1870 There is potentional contradiction between Secondary Channel Offset and E-CSA. E-CSA changes the BSS from 40 to 20 via regulatory class, but Secondary Channel Offset may remain indicating 40. However, this is not related to the CID, but we will use this comment to address issue. Defer comment, Bjorn to revisit 2581 CID resolution changed to Accept 2582, 2583, 2585 Matt to provide tables and normative text which illuminate the of use of all the fields available for 20/40 capability and operation for AP, STA, BSS. Also include E-CSA Defer for Matt’s table 3083 Defer, Bjorn to email commenter for clarification on comment Bjorn to remove deferred comments & undo changes due to those comment from document as load as R1. Eldad Perahia (Intel) Matthew Fischer (Broadcom)

October 2006 doc.: IEEE 802.11-06/1560r1 May 2007 07/614r2 Straw poll What is your scanning preference: AP directed using measurement request frame (D2.0): 11 STA initiated only (07/614):4 Abstain: 5 Question: can we add a statement that a STA SHOULD report detected OFDM traffic (valid FCS) on all channels not equal to primary or secondary? Or traffic in general? Question: can a STA set the 20 MHz BSS width request to 1 for any reason? Question: add optional allowance to operate at much faster transition delay (switch down from 40 to 20 MHz BSS) based on using fast traffic detection? Stopped at edits to 7.3.2.49.2 HT Capabilities Info field Eldad Perahia (Intel) Matthew Fischer (Broadcom)

Friday May 11 Agenda Submissions October 2006 doc.: IEEE 802.11-06/1560r1 May 2007 Friday May 11 Agenda Submissions 11-07-0614-00-000n-lb97-cid-75-20-40-coex.doc 11-07-0623-00-000n-20-40-coex-in-2-4ghz.ppt Eldad Perahia (Intel) Matthew Fischer (Broadcom)

07/614r2 Continue with edits to 7.3.2.49.2 HT Capabilities Info field October 2006 doc.: IEEE 802.11-06/1560r1 May 2007 07/614r2 Continue with edits to 7.3.2.49.2 HT Capabilities Info field Eldad Perahia (Intel) Matthew Fischer (Broadcom)

October 2006 doc.: IEEE 802.11-06/1560r1 May 2007 Deferred Comments 3007 Comment: A 40MHZ channel bandwidth should Not be used in the 2.4GHz Band. It completely destroys the band for other users. Proposed Change: Remove the 40MHz channelization in the 2400-2485MHz band in all instances of the draft. Discussion/submission? 2906 Comment: The protection mechanism is inadequate for OBSSs, particularly during the scanning period started once an OBSS is detected. Proposed change: Add duplicate DSSS to allow for the well-known MAC protection mechanisms in 20/40 MHz operation in 2.4 GHz. Eldad Perahia (Intel) Matthew Fischer (Broadcom)

Straw Poll for CID 3007 Do we want to remove 40 MHz from 2.4 GHz? Yes: October 2006 doc.: IEEE 802.11-06/1560r1 May 2007 Straw Poll for CID 3007 Do we want to remove 40 MHz from 2.4 GHz? Yes: No: Abstain: Eldad Perahia (Intel) Matthew Fischer (Broadcom)

Straw Poll for CID 2906 Do we want to add duplicate DSSS in 2.4 GHz? October 2006 doc.: IEEE 802.11-06/1560r1 May 2007 Straw Poll for CID 2906 Do we want to add duplicate DSSS in 2.4 GHz? Yes: No: Abstain: Eldad Perahia (Intel) Matthew Fischer (Broadcom)