Agenda and minutes TGn PHY ad hoc May 2007 doc.: IEEE 802.11-07/0637r8 May 2007 Agenda and minutes TGn PHY ad hoc Date: 2007-05-16 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>. Jim Petranovich, Conexant Systems Inc. Jim Petranovich, Conexant Systems Inc.

May 2007 doc.: IEEE 802.11-07/0637r8 May 2007 Abstract Agenda and minutes of TGn sessions for May 2007 IEEE 802.11 meeting in Montreal, Quebec, Canada. Jim Petranovich, Conexant Systems Inc. Jim Petranovich, Conexant Systems Inc.

May 2007 doc.: IEEE 802.11-07/0637r8 May 2007 Highlights of the IEEE-SA Standards Board Bylaws on Patents in Standards Participants have a duty to tell the IEEE if they know (based on personal awareness) of potentially Essential Patent Claims they or their employer own Participants are encouraged to tell the IEEE if they know of potentially Essential Patent Claims owned by others This encouragement is particularly strong as the third party may not be a participant in the standards process Working Group required to request assurance Early assurance is encouraged Terms of assurance shall be either: Reasonable and nondiscriminatory, with or without monetary compensation; or, A statement of non-assertion of patent rights Assurances Shall be provided on the IEEE-SA Standards Board approved LOA form May optionally include not-to-exceed rates, terms, and conditions Shall not be circumvented through sale or transfer of patents Shall be brought to the attention of any future assignees or transferees Shall apply to Affiliates unless explicitly excluded Are irrevocable once submitted and accepted Shall be supplemented if Submitter becomes aware of other potential Essential Patent Claims A “Blanket Letter of Assurance” may be provided at the option of the patent holder A patent holder has no duty to perform a patent search Full policy available at http://standards.ieee.org/guides/bylaws/sect6-7.html#6 1 Jim Petranovich, Conexant Systems Inc. Jim Petranovich, Conexant Systems Inc.

IEEE-SA Standards Board Bylaws on Patents in Standards May 2007 doc.: IEEE 802.11-07/0637r8 May 2007 IEEE-SA Standards Board Bylaws on Patents in Standards 6.2 Policy IEEE standards may be drafted in terms that include the use of Essential Patent Claims. If the IEEE receives notice that a [Proposed] IEEE Standard may require the use of a potential Essential Patent Claim, the IEEE shall request licensing assurance, on the IEEE Standards Board approved Letter of Assurance form, from the patent holder or patent applicant. The IEEE shall request this assurance without coercion. The Submitter of the Letter of Assurance may, after Reasonable and Good Faith Inquiry, indicate it is not aware of any Patent Claims that the Submitter may own, control, or have the ability to license that might be or become Essential Patent Claims. If the patent holder or patent applicant provides an assurance, it should do so as soon as reasonably feasible in the standards development process. This assurance shall be provided prior to the Standards Board’s approval of the standard. This assurance shall be provided prior to a reaffirmation if the IEEE receives notice of a potential Essential Patent Claim after the standard’s approval or a prior reaffirmation. An asserted potential Essential Patent Claim for which an assurance cannot be obtained (e.g., a Letter of Assurance is not provided or the Letter of Assurance indicates that assurance is not being provided) shall be referred to the Patent Committee. A Letter of Assurance shall be either: a) A general disclaimer to the effect that the Submitter without conditions will not enforce any present or future Essential Patent Claims against any person or entity making, using, selling, offering to sell, importing, distributing, or implementing a compliant implementation of the standard; or b) A statement that a license for a compliant implementation of the standard will be made available to an unrestricted number of applicants on a worldwide basis without compensation or under reasonable rates, with reasonable terms and conditions that are demonstrably free of any unfair discrimination. At its sole option, the Submitter may provide with its assurance any of the following: (i) a not-to-exceed license fee or rate commitment, (ii) a sample license agreement, or (iii) one or more material licensing terms. 2 Jim Petranovich, Conexant Systems Inc. Jim Petranovich, Conexant Systems Inc.

IEEE-SA Standards Board Bylaws on Patents in Standards May 2007 doc.: IEEE 802.11-07/0637r8 May 2007 IEEE-SA Standards Board Bylaws on Patents in Standards Copies of an Accepted LOA may be provided to the working group, but shall not be discussed, at any standards working group meeting. The Submitter and all Affiliates (other than those Affiliates excluded in a Letter of Assurance) shall not assign or otherwise transfer any rights in any Essential Patent Claims that are the subject of such Letter of Assurance that they hold, control, or have the ability to license with the intent of circumventing or negating any of the representations and commitments made in such Letter of Assurance. The Submitter of a Letter of Assurance shall agree (a) to provide notice of a Letter of Assurance either through a Statement of Encumbrance or by binding any assignee or transferee to the terms of such Letter of Assurance; and (b) to require its assignee or transferee to (i) agree to similarly provide such notice and (ii) to bind its assignees or transferees to agree to provide such notice as described in (a) and (b). This assurance shall apply to the Submitter and its Affiliates except those Affiliates the Submitter specifically excludes on the relevant Letter of Assurance. If, after providing a Letter of Assurance to the IEEE, the Submitter becomes aware of additional Patent Claim(s) not already covered by an existing Letter of Assurance that are owned, controlled, or licensable by the Submitter that may be or become Essential Patent Claim(s) for the same IEEE Standard but are not the subject of an existing Letter of Assurance, then such Submitter shall submit a Letter of Assurance stating its position regarding enforcement or licensing of such Patent Claims. For the purposes of this commitment, the Submitter is deemed to be aware if any of the following individuals who are from, employed by, or otherwise represent the Submitter have personal knowledge of additional potential Essential Patent Claims, owned or controlled by the Submitter, related to a [Proposed] IEEE Standard and not already the subject of a previously submitted Letter of Assurance: (a) past or present participants in the development of the [Proposed] IEEE Standard, or (b) the individual executing the previously submitted Letter of Assurance. 3 Jim Petranovich, Conexant Systems Inc. Jim Petranovich, Conexant Systems Inc.

IEEE-SA Standards Board Bylaws on Patents in Standards May 2007 doc.: IEEE 802.11-07/0637r8 May 2007 IEEE-SA Standards Board Bylaws on Patents in Standards The assurance is irrevocable once submitted and accepted and shall apply, at a minimum, from the date of the standard's approval to the date of the standard's withdrawal. The IEEE is not responsible for identifying Essential Patent Claims for which a license may be required, for conducting inquiries into the legal validity or scope of those Patent Claims, or for determining whether any licensing terms or conditions are reasonable or non-discriminatory. Nothing in this policy shall be interpreted as giving rise to a duty to conduct a patent search. No license is implied by the submission of a Letter of Assurance. In order for IEEE’s patent policy to function efficiently, individuals participating in the standards development process: (a) shall inform the IEEE (or cause the IEEE to be informed) of the holder of any potential Essential Patent Claims of which they are personally aware and that are not already the subject of an existing Letter of Assurance, owned or controlled by the participant or the entity the participant is from, employed by, or otherwise represents; and (b) should inform the IEEE (or cause the IEEE to be informed) of any other holders of such potential Essential Patent Claims that are not already the subject of an existing Letter of Assurance. 4 Jim Petranovich, Conexant Systems Inc. Jim Petranovich, Conexant Systems Inc.

Other Guidelines for IEEE WG Meetings May 2007 doc.: IEEE 802.11-07/0637r8 May 2007 Other Guidelines for IEEE WG Meetings All IEEE-SA standards meetings shall be conducted in compliance with all applicable laws, including antitrust and competition laws. Don’t discuss the interpretation, validity, or essentiality of patents/patent claims. Don’t discuss specific license rates, terms, or conditions. Relative costs, including licensing costs of essential patent claims, of different technical approaches may be discussed in standards development meetings. Technical considerations remain primary focus Don’t discuss fixing product prices, allocation of customers, or dividing sales markets. Don’t discuss the status or substance of ongoing or threatened litigation. Don’t be silent if inappropriate topics are discussed… do formally object. --------------------------------------------------------------- If you have questions, contact the IEEE-SA Standards Board Patent Committee Administrator at patcom@ieee.org or visit http://standards.ieee.org/board/pat/index.html See IEEE-SA Standards Board Operations Manual, clause 5.3.10 and “Promoting Competition and Innovation: What You Need to Know about the IEEE Standards Association's Antitrust and Competition Policy” for more details. This slide set is available at http://standards.ieee.org/board/pat/pat-slideset.ppt 5 Jim Petranovich, Conexant Systems Inc. Jim Petranovich, Conexant Systems Inc.

May 2007 Unresolved comments Jim Petranovich, Conexant Systems Inc.

Status at End of Week 344 total comments So PHY is about 40% finished May 2007 Status at End of Week 344 total comments 107 comments approved by TGn 29 comments ending approval of TGn today 12 comments with resolutions approved by ad hoc but deferred from motion So PHY is about 40% finished Did not have enough time to review all available submissions Thanks to all who prepared submissions Jim Petranovich, Conexant Systems Inc.

Topic Groups (1) May 2007 Topic # CID volunteer Sub 40 MHz operations Bjorn July antenna 6 Vinko 0608r1 CCA Assaf 0457r3 channelization 2 Eldad 0554r2 cyclic shift 10 0632r1 duplicate 25 Jim P 0601r2 evm 11 0646r0 FEC 1 George V. 0582r5 GI 0598r1 Jim Petranovich, Conexant Systems Inc.

Topic Groups (2) May 2007 greenfield 4 Eldad 0555r0 HT-legacy spec 16 doc.: IEEE 802.11-07/0637r8 May 2007 Topic Groups (2) greenfield 4 Eldad 0555r0 HT-legacy spec 16 Assaf 0557r2 Introduction 7  Jim P. September mask 18 Vinko July misc 14 Jim P. PHY equations 12 Assaf   July PHY Time Eldad  PHY vectors 13 0647r1 PLCP 0554r2, 0621r0 preamble Bjorn 0516r3 Jim Petranovich, Conexant Systems Inc. Jim Petranovich, Conexant Systems Inc.

Topic Groups (3) May 2007 receiver spec Eldad 0554r2, 0621r0 RSSI 7 Eldad 0554r2, 0621r0 RSSI 7 Jim P. 0588r0 scrambler 2 0554r2 service primitive 18 Assaf July smoothing 3 Vinko 0609r1 STBC 10 Jeremy 0544r6, 0545r0, 0546r2, 0790r0 Jim Petranovich, Conexant Systems Inc.

Notes on Topic Group Tables May 2007 Notes on Topic Group Tables All submissions are of form 11-07/xxxxrx, where the leading 11-07/ is not shown in the table to save space Submission numbers in bold have been approved by ad hoc but not approved by TGn Submissions numbers underlined have been approved by TGn Submissions numbers in italics have been presented and are closed but not approved Comments with a resolution status of deferred in submissions referenced by this document have not been resolved in the ad hoc Jim Petranovich, Conexant Systems Inc.

Agenda May 9-11 Old Items New Items 0516r1 Bjorn Preamble 0555r0 Eldad Greenfield 0554r0 Eldad (several) 0544r2, 0545r0, 0546r1 Jeremy STBC New Items 0582r2 George FEC 0457r0 Assaf CCA 0647r0 Assaf PHY Vectors Jim Petranovich, Conexant Systems Inc.

Agenda May 14-17 Old submissions New submissions PHY ad hoc (June 27?) 0582r4—George—FEC 0544, 0545—Jeremy—STBC New submissions 0621r0—Eldad—PLCP Procedure 0701r0—Assaf and Jim—non HT duplicate (Tuesday) 0557r1—Assaf—HT-Legacy 0601r0—Jim—Duplicate PHY ad hoc (June 27?) Pending motions (0749r0) Jim Petranovich, Conexant Systems Inc.

Agenda May 16 STBC review HT-Legacy review May 2007 Jim Petranovich, Conexant Systems Inc.

Agenda May 17 PHY spreadsheet 11-07/0341r5 is on server Review open topics, ask for volunteers, plans for June/July Review pending motions 11-07/0749r2 Jim Petranovich, Conexant Systems Inc.

Minutes—Wednesday June 9 May 2007 Minutes—Wednesday June 9 11-07/0516r1—Bjorn Bjerke—Preamble Created 0516r2 based on discussions in ad hoc. Revisit Friday briefly 11-07/0555r0—Eldad Perahia—Greenfield Do you accept these resolutions: 11y/2n/2a: accepted by more than 75% 11-07/0554r0—Eldad Perahia—several comment groups Created 0554r1 based on discussions in ad hoc Proposed resolution to CID 749, etc. need more consideration, will either update submission with revisions or move discussion of these CIDs to a separate submission. This may cause a revision to proposed resolution of CID 507 as well. Jim Petranovich, Conexant Systems Inc.

Minutes—Friday 11 May May 2007 11-07/0554r2—Eldad Perahia—several comment groups Deferred CID 749 and related comments resolutions Corrected CID 597 resolution Unanimous acceptance of resolutions proposed in document 11-07/0516r3—Bjorn Bjerke—Preamble 11-07/0544r2, 11-07/0545r0, 11-07/0546r2—Jeremy Gosteau—STBC Will prepare another submission to propose resolution of comments proposing to make STBC mandatory Unanimous acceptance of resolutions proposed in documents 0546r2 Defer 0545r0 to give others a chance to present Defer 0544r2, will revise to create r3 11-07/0582r—George Vlantis—FEC Created 0582r3 to include some suggested changes Conducted straw poll PHY 1 Assaf Kasher—Discussed a potential issue with LDPC encoding with 4 SS This issue may not relate to comments made in letter ballot, not clear how to handle this, decided to defer procedural issues to TGn Assaf will prepare a submission for the ad hoc If the ad hoc agrees with submission, will resolve procedural issues in July IEEE meeting Jim Petranovich, Conexant Systems Inc.

Minutes Friday 11 May 11-07/0457r2—Assaf Kasher—CCA Defer CID 346, 406 until July, when Doug Chan expects to have a submission regarding these CIDs 0457r3 created to reflect discussion in the ad hoc Unanimous acceptance of resolutions proposed in document 11-07/0647r0—Assaf Kasher—PHY Vectors Skip discussion of CID 2901 until commenter is available 0647r1 created to reflect discussion in the ad hoc CID 3171 resolution may be revision related to ANTENNA_SET_ON Jim Petranovich, Conexant Systems Inc.

Agenda May 14-17 Planning Motions comments transferred to PHY ad hoc motions preview (in ad hoc) Tuesday and Thursday motions (in TGn) Wednesday and Thursday Motion procedure Propose to reference submissions in motions After a motion is approved by motion in TGn, please do not continue with same submission number even if this is a revision comments transferred to PHY ad hoc I have assigned to comment groups, ask volunteers to process Reflecting in latest spreadsheet 11-07/0341r3 Misc comments I will break down, will ask volunteers to help process (Thursday) Jim Petranovich, Conexant Systems Inc.

Minutes 14 May No issues with IP policy were noted doc.: IEEE 802.11-07/0637r8 May 2007 Minutes 14 May No issues with IP policy were noted Transfer CID 1747 to COEX accepted unanimously 11-07/0582r4—George Vlantis—FEC Updated to r5 based on discussions in ad hoc Accepted unanimously 11-07/0621r0—Eldad Perahia—Straw polls Straw polls PHY 2 to PHY 5 conducted 11-07/0544r3—Marc de Courville—STBC Created r4 based on discussion Revisit Tuesday 11-07/0598r1—Jim Petranovich—GI Created r2 based on discussion Accepted unanimously by PHy ad hoc Jim Petranovich, Conexant Systems Inc. Jim Petranovich, Conexant Systems Inc.

Minutes 15 May Review of non-HT duplicate format (0701r0) doc.: IEEE 802.11-07/0637r8 May 2007 Minutes 15 May Review of non-HT duplicate format (0701r0) Conducted PHY straw poll 6 Proposed motions for TGn 11-07/0749r0 motions 11-07/0314r4 comment spreadsheet 11-07/0544r4—STBC—Marc de Courville r5 created as a result of discussion Defer consideration until Wednesday to allow review 11-07/0557r1-HT-Legacy—Assaf Kasher More time desired to review issues with CCA (should be resolved tomorrow) New revision, r2, created based on discussions No issues noted with draft other than CCA above, will discuss tomorrow Jim Petranovich, Conexant Systems Inc. Jim Petranovich, Conexant Systems Inc.

Minutes May 16 May 2007 No issues noted with patent policy No issues with proposed PHY motions 11-07/0601r1—Jim Petranovich—Duplicate Revision r2 created to reflect comments in ad hoc Straw poll PHY 7 conducted Similar straw poll recommended for TGn Revised submission r2 accepted unanimously in ad hoc 11-07/0544r5—Marc de Courville—STBC Revision r6 created to reflect comments in ad hoc Accepted unanimously by ad hoc 11-7/0545r0 also accepted unanimously by ad hoc 11-07/0608r0—Vinko Erceg—Antenna Conducted straw poll PHY 8 Revision r1 created to reflect comments in ad hoc Revision accepted unanimously by ad hoc Jim Petranovich, Conexant Systems Inc.

Minutes May 17 May 2007 No issues noted with patent policy Assigned new topic groups Discussed schedule of submissions All submissions expected for July except for introduction No objections to revises motions in 11-07/0749 0749 will be updated to r3 11-07/0557r2—HT-Legacy—Assaf Kasher Unanimously accepted by ad hoc 11-07/0609r1—Smoothing—Vinko Erceg Conducted PHY straw poll 9 Deferred to allow original commenter to discuss in group 11-07/0632r0—Cyclic Shifts—Vinko Erceg Created r1 based on discussions in ad hoc CID 1909 moved to HT-legacy, assigned to Assaf Kasher Accepted unanimously by PHY ad hoc Agreed to submit as a motion to TGn Jim Petranovich, Conexant Systems Inc.

May 2007 Straw Poll PHY 1 Do you support creating a mandatory requirement for HT AP STAs to receive LDPC-coded Data field frames? Yes 1, No 11, Abstain 3 Jim Petranovich, Conexant Systems Inc.

Straw Poll PHY 2 (for CID 2773) May 2007 doc.: IEEE 802.11-07/0637r8 May 2007 Straw Poll PHY 2 (for CID 2773) Do we need to restructure the transmit (20.3.22) and receive (20.3.23) procedures to formalize the use of C-PSDU? Yes—2 No—6 Abstain—9 Jim Petranovich, Conexant Systems Inc. Jim Petranovich, Conexant Systems Inc.

Straw Poll PHY 3 (for CID 2775) May 2007 doc.: IEEE 802.11-07/0637r8 May 2007 Straw Poll PHY 3 (for CID 2775) Do we need to restructure the receive (20.3.23) to match the architecture? Yes: 0 No: 7 Abstain: 11 Jim Petranovich, Conexant Systems Inc. Jim Petranovich, Conexant Systems Inc.

Straw Poll PHY 5 (for CID 2784) May 2007 doc.: IEEE 802.11-07/0637r8 May 2007 Straw Poll PHY 5 (for CID 2784) Do we need to remove the phrase “after the decoding of the FEC by the PMD entity” ? Yes: 0 No: 3 Abstain: 14 Jim Petranovich, Conexant Systems Inc. Jim Petranovich, Conexant Systems Inc.

Straw Poll PHY 4 (for CID 2772) May 2007 doc.: IEEE 802.11-07/0637r8 May 2007 Straw Poll PHY 4 (for CID 2772) Do we need to indicate who is responsible for discarding of pad bits and account for the tail bits? Yes: 0 No: 13 Abstain: 7 Jim Petranovich, Conexant Systems Inc. Jim Petranovich, Conexant Systems Inc.

Straw Poll PHY 6 From 11-07/0701r0 Do you prefer Option #1: 4 May 2007 Straw Poll PHY 6 From 11-07/0701r0 Do you prefer Option #1: 4 Option #2 : 7 Need a different solution : 2 Abstain : 18 Jim Petranovich, Conexant Systems Inc.

May 2007 Straw Poll PHY 7 Would you consider removing MCS 32 from the draft, if it could be removed without creating any interoperability problems in future? Y:9 N:0 A:13 Jim Petranovich, Conexant Systems Inc.

Straw Poll PHY 8 Regarding CID 1904, figure n64 (D2.0), should we: May 2007 Straw Poll PHY 8 Regarding CID 1904, figure n64 (D2.0), should we: Option 1: Remove note regarding number of RF outputs Option 2: Reject (spec is not defined for more than 4 outputs) Option 3: Change note to say “The number of inputs to the spatial mapper may be 1, 2, 3, or 4” Result 1: 0, 2: 5, 3: 12 Jim Petranovich, Conexant Systems Inc.

May 2007 PHY Straw Poll 9 Would you support disallowing combinations of length equal to zero and not_sounding equal to one? Y: 1 N: 2 A: 11 Jim Petranovich, Conexant Systems Inc.