1. MRG IFS Correction Date: July 2010 Authors: July 2010 Month Year
doc.: IEEE yy/xxxxr0
July 2010
MRG IFS Correction
Date: July 2010
Authors:
Ivan Pustogarov, IITP RAS
John Doe, Some Company

2. Abstract IEEE P802.11aa/D1.00, April 2010, page 39, lines 36-42:
Month Year
doc.: IEEE yy/xxxxr0
July 2010
Abstract
IEEE P802.11aa/D1.00, April 2010, page 39, lines 36-42:
If distance to the AP is different for different stations, Block Ack frames may overlap at the AP
Ivan Pustogarov, IITP RAS
John Doe, Some Company

3. July 2010
Example
Due to air propagation, Block Ack1 and Block Ack2 may overlap at AP
Ivan Pustogarov, IITP RAS

4. Proposed correction Change normative text : to:
July 2010
Proposed correction
Change normative text :
… and shall transmit a BlockAck frame at a delay of (N+1)*SIFS + N*TXTIME(BlockAck) after the BlockAckReq.
to:
… and shall transmit a BlockAck frame at a delay of (N+1)*(SIFS+aAirPropagationTime) + N*TXTIME(BlockAck) after the BlockAckReq.
The goal is to make IEEE aa-capable devices more universal so they can be used both in indoor and outdoor (outdoor long distance and TV bands)
Ivan Pustogarov, IITP RAS

5. July 2010
Strawpoll
Should the draft .11aa be changed according to the presentation?
Yes:
No:
Abs.:
Ivan Pustogarov, IITP RAS

6. Acknowledgements July 2010
The proposal was made in the framework of FP7 project “Flavia”.
Ivan Pustogarov, IITP RAS