11n Liaison Report

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Project IEEE P802.15 Working Group for Wireless
Personal Area Networks (WPANs) Submission Title
11N Liaison Report. Date Submitted 18 March
2005 Source Jim Allen, Appairent Technologies,
John R. Barr, Motorola Address 1303 E.
Algonquin Road, Schaumburg, IL 60196 Voice
847-576-8706, FAX [phone], E-Mail
John.Barr_at_Motorola.com Re Abstract 11n
Liaison Report Purpose For the purpose of
informing the body. Notice This document has
been prepared to assist the IEEE P802.15. 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
acknowledges and accepts that this contribution
becomes the property of IEEE and may be made
publicly available by P802.15.
NOTE Update all red fields replacing with your
information they are required. This is a manual
update in appropriate fields. All Blue fields
are informational and are to be deleted. Black
stays. After updating delete this box/paragraph.
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11N Liaison Report

• March 18, 2005
• Atlanta, GA

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Sources

• Based on Shameless plagiarism of .11n documents,
  primarily
• 11-05-0095-00-000n (TNn Opening Report)
• 11-05-0266-00-000n TGn Sync March 5min Summary
• 11-05-0273-00-000n WWiSE proposal closing
  summary March 2005

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TGn - March Schedule
Mar 14
Mar 15
Mar 16
Mar 17
Time Monday Tuesday Wednesday Thursday
800-1000 X X QA Session 3 (Presentations) .19 discussion Confirmation vote
1030-1230 X X X Compilation of Nos Technical Editor Plans for May TGn Timeline
130-330 X Proposal Presentation 1 Proposal Presentation 2 QA Session 4 (Presentations) X
400-600 Opening, Minutes, Agenda Comparison Presentations QA Session 1 (Presentations) Final Summary Voting procedure Down select vote X
730-930 Comparison Presentations QA Session 2 (Presentations) X X
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Self Proclaimed Advantages

• SYNC
• Further along technically and better documented
• Faster to approval
• Wwise
• Added six members
• WWiSE has an efficient and streamlined design
• Detailed and stable specification, suitable for
  immediate progress to Draft 1.0
• Key differences may be in
• MIMO inter-leaver design
• Short cyclic prefix
• Efficient pilot tone usage
• Compact preambles

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Down Select Ballot Results

• 331 Total votes
• 178 votes 53.8 TGn Sync
• 153 votes 46.2 WWiSE

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Step 17

• When one proposal is left, there shall be a
  confirmation roll call vote either in favor of
  the proposal or for none of the above. The
  proposal shall be required to achieve a 75
  majority in order to be submitted to the IEEE
  802.11n Editor as the initial technical
  specification. If the remaining proposal fails
  to achieve a 75 majority, the members who voted
  "no" shall be requested to provide to the chair
  their reason(s) for voting no and what would be
  required to change their vote to affirmative.
  The proposer shall have an opportunity to respond
  to the concerns of the no voters, after which a
  roll call vote will be taken to approve the
  proposal.
• Requirement to have a reason to vote no was
  removed.

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Confirmation Vote Results

• 321 Total votes
• 56 For
• 44 Against
• Confirmation Failed

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Simplified graphic from TGn Selection Procedure
03-665r9 Step 13 to Step 17
Step 15 gt1 proposal Left?
Step 13 Proposals change
Step 14 Presentation of remaining proposals Q A
yes
Step 16 Elimination Vote
Approved by at least 75
no
Draft prepared
Step 17 Roll Call Confirmation Vote
Reasons cures
1 Approved by lt 75
Responses
Step 18 2 Approved by lt 75
Reset to 16 with last 3 proposals
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Technical Editor Election

• Candidates
• Adrian Stephens
• Sean Coffey
• Delayed selection until after confirmation.

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Plans for May

• Degree of compromise/merger between now and May
  meeting cannot be predicted. For time scheduling
  purposes, the following represents a plan based
  upon minimal compromise.
• Prior to meeting
• Proposal team responses to no votes posted to
  server 10 days prior to May meeting (May 6)
• Submission of email questions from membership can
  be supplied
• In meeting
• Proposal team Presentation of responses (4-6
  hrs)
• Present original votes, remedies, responses
• Present updated proposal
• Group discussion, QA (4 hours)
• Confirmation vote 2 (2 hr)
• Elect technical editor
• Other technical presentations
• Coexistence Assurance document development with
  .19
• Plans for July

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Time Line Events

• PAR Approval Sept. 11, 2003
• 1st WG Letter ballot July 2005
• 1st Sponsor ballot March 2006
• Final WG/SEC approval November 2006
• Revcom approval December 2006