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At yesterday’s meeting I expressed my disagreement with the proposed resolution for CID 4001 which allows Beacons to be sent at PIFS but also leaves it open to send with contention. My objection did not make it into the Minutes.
However:
An AP contends for Beacons using AC_VO with AISFN of 1 and CWmin of 3. Hence, 1 in 4 Beacons can be sent at PIFS and 50% sent within DIFS or less. This has been fine for decades. Now this resolution says APs have to choose whether to contend or use PIFS? How do they choose? Busy medium? How busy? Guess what they will do? They will go at PIFS and introduce a major change with no real justification for any improvement - Matthew pointed out that 5% collisions could occur, for what advantage, I did not hear one? I contend that the existing scheme of 1 in 4 beacons going at PIFS, 50% at DIFS or less, is fine and we should not change it, especially as traffic is increasing daily.
I strongly oppose this resolution, the present scheme is fine.
Graham
From: ***** 802.11 REVm - Revision Maintainance List ***** [mailto:STDS-802-11-TGM@xxxxxxxxxxxxxxxxx] On Behalf Of Jon Rosdahl
Sent: Thursday, August 6, 2020 12:10 AM
To: STDS-802-11-TGM@xxxxxxxxxxxxxxxxx
Subject: [STDS-802-11-TGM] Aug 5 - Minutes - TGmd REVmd CRC Telecon posted 11-20/1183r2
--- This message came from the IEEE 802.11 Task Group M Technical Reflector ---
Greetings,
The August 5, 2020 Minutes for the TGmd REVmd CRC Telecon has been posted in doc: 11-20/1183r2
https://mentor.ieee.org/802.11/dcn/20/11-20-1183-02-000m-telecon-minutes-for-revmd-crc-aug-3-7-2020.docx
Next Telecon August 7th 10am - 1pm ET
Regards,
Jon
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Jon Rosdahl Engineer, Senior Staff
IEEE 802 Executive Secretary Qualcomm Technologies, Inc.
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