IEEE P802.11 Wireless Lans s92

July 2010 doc.: IEEE 802.11-10/0835r0

IEEE P802.11
Wireless LANs

TGz Meeting Minutes – San Diego, CA
Date: 2010-07-12
Author(s):
Name / Affiliation / Address / Phone / Email
Daniel R. Borges / Apple, Inc. / 1 Infinite Loop, MS 306-2HN / +1 415 425 7347 /

Abstract

This document contains the minutes from the TGz meeting in San Diego, CA on July 12, 13, and 15, 2010.


TGz Meeting Minutes – San Diego, CA

July 12, 2010 PM1 Session

Daniel R. Borges (Apple, Inc.), the secretary, will be taking meeting minutes.

Meeting Minutes

  1. Meeting called to order by the Chair Menzo Wentink (Qualcomm) @ 1340 PT.
  2. The chair presented IEEE SA SB Patent Policy and Procedures (slides #1, #2, #3, #4 and #5).
  3. The TG members did not (a) express any knowledge of essential patents that influences TGz and (b) any concerns/issues that the WG chair needs to be aware of.
  4. There are 5 members attending this session, including Menzo and I.
  5. The proposed agenda is found in document 10/0808r0.
  6. Menzo is presenting the proposed agenda to the membership.
  7. Henry Ptasinski (Broadcom) would like to add a discussion on TDLS Discovery
  1. Menzo is running the first motion of this session.

Motion 1: Approve the TGz Beijing Meeting Minutes

Mover: Henry Ptasinski (Broadcom)

Second: Daniel R. Borges (Apple, Inc.)

Result: Unanimous

So moved and approved

  1. Menzo presented the recirculation sponsor ballot comment document, 10/0697r2.
  2. Menzo presented the 802.11z report to the EC to proceed to RevCom; this document is not yet on the server. Menzo will be reviewing this document with Bruce Kraemer (Marvell) and will be presented again to the TGz membership. This document will be motioned on Friday during the 802.11 closing plenary session.
  3. Solomon Trainin (Intel) has entered a comment asking for a security enhancement. This enhancement makes sense, but may be too late in the process to address. The membership will have to discuss and decide how to proceed with this comment.
  1. Going back to the recirculation sponsor ballot comment document, 10/0697r2.
  2. CID 14 – Menzo is modifying the resolution to Agree based on discussions with Henry.
  3. CID 21 – Menzo is modifying the proposed resolution based on discussions with Henry.
  4. This discussion addresses the pending comments by Henry Ptasinski.
  5. Moving onto the discussion on TDLS Discovery. There is no current comment on this topic, but some of the members would like to revisit this feature.
  6. We are reviewing an email sent by Henry with a list of TDLS Discovery items.
  7. Menzo is making modifications to the TDLS Discovery text in order to address some of the items.
  8. There is ongoing discussion on TDLS Discovery and when the TDLS STAs should send these frames; the main concern is a broadcast storm.
  9. There is discussion on TDLS Discovery being broadcast vs. unicast. What is the value of using the broadcast mechanism? Henry is questioning the value of broadcast discovery and how this could potentially cause a storm situation and inefficient use of the spectrum.
  10. The group continues discussion on unicast vs. broadcast and whether there should be some timing requirements for the response. Can this be coordinated in a simple way?
  11. Menzo would propose we delete the broadcast option. This proposal is supported by other members in the room. Menzo is making some changes to the text based on the discussions and consensus in the room.
  12. Menzo has recessed this session, 1532 PT.
  13. The group will continue to work on comment resolution in the next session.

July 13, 2010 PM1 Session

  1. The chair has called the meeting to order @ 1335 PT.
  2. There are 6 members attending this session.
  3. Menzo is presenting the current 802.11z draft 9.0 and discussing information elements in the TDLS Setup Request frame. Should these elements be ascending or descending?
  4. Henry Ptasinski (Broadcom) prefers to go by element ID and making it consistent with the base standard.
  5. The commentor would like the elements in ascending order, CID 9.
  6. Menzo will take a look at the base standard and defined frames and make it consistent.
  7. Menzo is now looking at Solomon Trainin (Intel) comments and discussing. There were some discussion on this topic and the consensus is that this would not be simple and would require further definition.
  8. Menzo is now looking at Liwen Chu (ST Micro) comments and discussing. There are 2 pending comments from Liwen Chu. Ashish Shukla (Marvell) points out the Dialog Token definition in the base standard. We cannot define the Dialog Token differently from the base standard. The membership is having discussion on how to address the Dialog Token definition. Resolution to these comments has been updated in the comment resolution sheet. The membership now is discussion the “INTERVAL” comment by Liwen Chu. The group has decided to define the term “INTERVAL”. “INTERVAL” has now been defined as dto11TDLSACDeterminationInterval. Menzo is looking at the MIB and proposes to use OBJECT ID 130 in the dot11STAConfig table in the MIB. The membership is working on a definition for this interval. Menzo will post a contribution that addresses this comment – 10/
  9. Henry proposed that we look at another MIB object while we are at it – TDLSResponseTimeout. Seems like a very large time, why did we pick 18 seconds and is seconds the correct unit for this? Menzo is making modifications to the object range and default value.
  10. Moving onto TDLS Discovery. Looking at a comment related to the XML definition for TDLS discovery found in Annex Y. There are concerns with fitting all the information in this XML example into the TDLS Discovery Response. The network information is not found in the fields currently defined in the TDLS Discovery Response. This information could be send using a Public Action frame, for example GAS, with an EtherType encapsulation.
  11. Moving onto CID 11. Menzo has added some statements on the resolution for this CID.
  12. This is all that Menzo had as working items for this session. He is actively chasing the commentors that have pending comments, but no response thus far – Joe Epstein (Meru), Stephen Palm (Broadcom), and Richard Roy.
  13. Menzo has recessed the session at 1530 PST.

July 15, 2010 PM1 Session

  1. The chair has called the meeting to order @ 1342 PT.
  2. There are 11 members attending this session.
  3. Menzo is working on final changes to the comment resolution spreadsheet, 10/0697r4, based on some ongoing discussions on QoS and EDCA parameters in the TDLS Setup frames.
  4. Menzo is presenting document 10/0854r0, which is the 802.11z EC Report. Lee Armstrong is providing some clarification on the procedure for Conditional Approval to RevCom. Menzo is going through the content of this document and explaining the status with pending comments.
  5. Ashish Shukla (Marvell) and Menzo are discussing the need for the QoS Info subfield in the TDLS Setup frames since the U-APSD flags are contained in this field. VK Jones (Qualcomm) questions whether this change is too late in the sponsor balloting phase and whether it would generate “no” votes. The main issue is whether the values of the parameter set in the Setup Request and Response are different, then what should be done. The suggestion is to use the default values for the parameter set – EDCA parameters. The resolution to this comment can be found in the comment resolution spreadsheet.
  6. There is one pending item, which is the TDLS broadcast discovery behavior brought up by Henry Ptasinski (Broadcom). The concern is a broadcast discovery request could potentially cause a broadcast storm and unnecessary frames in the air. This issue has been discussed and resolved. The resolution can be found in the comment resolution spreadsheet.
  7. The comment resolution spreadsheet, 10/0697r4, has been uploaded to the server.

Motion 2: Move to approve TGz third SB recirc comment resolutions in document 10/0697r4

Mover: Ashish Shukla (Marvell)

Second: Lee Armstrong (US Department of Transportation)

Result: 12 yes, 0 no, 0 abstain

So moved and approved

  1. Moving on to the next motion.

Motion 3: Recirculation Sponsor Ballot

Mover: Lee Armstrong (US Department of Transportation)

Second: Daniel R. Borges (Apple, Inc.)

Result: 12 yes, 0 no, 0 abstain

So moved and approved

  1. Moving onto the next motion.

Motion 4: 802.11 EC Motion

Mover: Lee Armstrong (US Department of Transportation)

Second: Daniel R. Borges (Apple, Inc.)

Result: 12 yes, 0 no, 0 abstain

So moved and approved

  1. Moving onto the final motion.

Motion 5: RevComm Report

Mover: Lee Armstrong (US Department of Transportation)

Second: Daniel R. Borges (Apple, Inc.)

Result: 11 yes, 0 no, 0 abstain

So moved and approved

  1. Final business is teleconferences.

Motion 6: TGz Teleconferences

Mover: Daniel R. Borges (Apple, Inc.)

Second: Clint Chaplin (Samsung)

Result: unanimous

So moved and approved

  1. Menzo asked the membership if there are any other business
  2. The membership did not bring up any old, new, or other business.
  3. Menzo has adjourned the session.

TGz Meeting Minutes - San Diego, CA page 1 Daniel R. Borges, Apple, Inc.

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