November 2005doc.: IEEE 802.11-05/1032r0
IEEE P802.11
Wireless LANs
Date: 2005-11-08
Author:
Name / Company / Address / Phone / email
Dennis Ward / University of Michigan / 2150 Plymouth Rd.
Suite 2200B
Ann Arbor, MI / +1 734 763-9522 /
Abstract
This document contains the meeting minutes from the TGT Task Group Teleconference on November 3, 2005.
Minutespage 1Dennis Ward, University of Michigan
November 2005doc.: IEEE 802.11-05/1032r0
Roll Call (more may have attended – please send updates to TG Chair):
Warren, Craig
Wright, Charles
Kobayashi, Mark
Green, Larry
Pirzada, Fahd
Lemberger, Uriel
Alexander, Tom
Emmelmann, Marc
Ward, Dennis
Kraemer, Bruce
Proceedings:
Approval of Agenda:
Agenda Accepted by unanimous consent
Approval of previous minutes (11-05/1032r0 from 10/6/05 telecon):
Charles - Recap of last telecon. 5-Minute meeting with no discussion
Charles - October 6, 2005 TGT Minutes accepted by unanimous consent
Editor's update (draft 0.4):
Tom - Update on Draft Status - D0.4 posted October 25, 2005. Tom apologized for delays in posting as typical posting is 3 weeks after the meeting. D0.4 added the ACI Test metric from D0.3. Some minor editorial corrections made, but no other substantive changes with a total of 64 pages in the draft. Estimation of final draft length is 200 to 300 pages. Looking forward to more contributions at the upcoming meeting.
Charles / Tom - Turn around time for next draft should occur within 3 weeks after the Vancouver meeting
Larry & group thanked Tom for his work.
Charles - Some comments received for draft. Will update the comments spreadsheet and upload to the document server along with an email announcement as that occurs. Also recapped the definition and purpose of the issues list. Stressed importance of the issues list.
Discussion – Planning for Vancouver Meeting:
Charles – Plans for Vancouver. Tentative agenda is available from web site. TGT has a total of six, two-hour slots for official business and a one-hour slot on Monday morning for an ad-hoc meeting. Provided background on the scope and purpose of the ad-hoc meeting. Due to conflict with executive committee meeting, the Monday morning meeting cannot be used to conduct formal business. Encouraged members to attend.
Recapped plans for Vancouver meeting based on Garden Grove slides.
Intentions to present:
Larry Green – Intention to show work in progress on theoretical throughput limits. DCN reserved 11-1050/r0. Should be available next week for review. Will not seek approval. Seeking feedback from the group and hopes to have draft text ready for January / March if group agrees it belongs in the draft.
Tom: Requested for an annex for limits as proposed is important to be part of the draft. Discussion of IETF work done by Tom.
Charles: Offered to assist as necessary and believes it is beneficial.
Tom – Update of Layer 2 metrics proposal which include comments from previous discussions / presentations.
Larry – Suggested annual update of Tom’s metrics. Discussion ensued regarding last update of metric proposal / presentation that occurred at the July meeting.
Charles – Colleagues preparing co-authored presentation / proposal regarding BSS transition time metric.
Charles – Hope to have a proposal / presentation of latency sensitive application metrics.
Tom – discussed emails regarding Dennis Ward’s documents
Charles – Providing encouragement to Dennis Ward
Dennis – Presentation / Proposal for test / test equipment practices, reference standards and additional definitions as well as recommended modifications for 11-04/1540-r1. Documents 11-05/1043 & 1044 will be updated before the Vancouver meeting.
Charles – In March group agreed that proposals would conform to 1540/r1 but the document was not completed. Suggested the group discuss the issues and agree upon. Charles discussed formats for presenting changes and suggestions for generic testing and proposal template updates.
Charles – requested group members to announce document uploads on the TGT email reflector.
Fahd – Document framework presentation 11-05/969-r1. Looking for motions for the framework section of the draft. A revised revision has been posted since the last meeting. Any further changes will be announced on the reflector.
Fahd – Collaboration on video and data metrics, but will announce on reflector if there is intent to present at the Vancouver meeting.
Larry – Asked Charles to clarify ad-hoc.
Charles – Meeting is at 8AM on Monday November 14th. Recapped purpose and scope of ad-hoc meeting, and reasons for conducting the meeting at the same time as the executive committee meeting. The meeting is listed on the meeting graphic for Monday. The TGT slot is 1.5 hours and the Opening Plenary begins at 11 AM.
Charles – Solicited further contributions and received no responses.
Other discussion:
Craig – Believes there may be some missing items on tests called out and asked if further work might cover these. Also requested if the items should be on the issues list.
Charles – The items can be added and discussed today
Craig – Paragraph 4.3 of conducted test environment. Does not discuss calibration, leakage tests. Suggests added calibration and leakage tests to confirm isolation. The figure appears to show interconnections between isolated boxes.
Charles – Clarified assurance of isolation between chambers. Item has been discussed, but unsure of outcome
Craig – has had issues with leakage in the past with due to conducted emissions on cables due to nearby Access Point / RF Device.
Craig – OTA environment and range lock-down: Discussed issues concerning vehicles “off-range” due to reflections. Suggests a far-field radius from devices due to reflections that cause throughput measurement differences.
Tom – Identified sub-clause 4.4
Tom – Read item from draft text, but suggest that it be clarified.
Charles / Tom / Craig – Discussed text intent and clarification options.
Charles – Solicited further comment.
Craig – Asked telecon members if the recommended practice is more geared to laptops? Craig works in portable device market and asked if configurations and practices could be added for handheld / portable devices instead of laptops.
Charles – Agrees that portable devices could be added, but need to define how they should be tested and what special aspects of testing are required. Referenced CTIA documents that relate to anechoic chamber testing with phantom head. Does the group want to follow the same practices for WiFi?
Craig – Model for WiFi may not be the same as Cellular. Not sure where the converged use case may go.
Charles – Believes it may be a stretch for TGT to standardize on such types of CTIA RF test set-ups. Believes CTIA may be working on other test conditions for devices and gave some examples.
Larry – Suggest considering power-save functions for handhelds.
Charles – Asked if power consumption is the basis for the test
Larry – Based on discussion power-save should be considered, as an example
Craig – agreed with Larry’s comments regarding Power-save mode testing.
Charles – Power save is certainly important and relates to device long-term performance and how it relates to battery life. Suggests effects of protocol on performance and what type of testing might be appropriate for the handheld and other platforms. There are many open issues much the same as test environment / conditions.
Charles – No further comments. Looking forward to Vancouver.
Meeting adjourned at 12:50 EST
Minutespage 1Dennis Ward, University of Michigan