1. TGn Coex Ad Hoc Minutes April 2007
doc.: IEEE /0570r0
April 2007
TGn Coex Ad Hoc Minutes April 2007
Date:
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Eldad Perahia, Intel Corporation
Eldad Perahia, Intel Corporation

2. April 2007
doc.: IEEE /0570r0
April 2007
Abstract
Minutes from the TGn Coexistence Ad Hoc conference call on April 25, 2007.
Eldad Perahia, Intel Corporation
Eldad Perahia, Intel Corporation

3. Agenda Bjorn Bjerke (Qualcomm) Assaf Kasher (Intel)
April 2007
doc.: IEEE /0570r0
April 2007
Agenda
Bjorn Bjerke (Qualcomm)
11-07/0524r0: E-CSA
Assaf Kasher (Intel)
r0: CCA sensing
r0: modification of PHY-CCA for multiple channels
Eldad Perahia, Intel Corporation
Eldad Perahia, Intel Corporation

4. April 2007
doc.: IEEE /0570r0
April 2007
Discussion on 07/524
Bruce: We need to track E-CSA text changes in TGy recirculation and confirm that E-CSA in TGy continues to resolve TGn E-CSA CIDs
Bjorn will make sure 11n E-CSA comments are addressed in 11y draft
CID 828
Bruce: in proposed resolution, clarify who is “recipient”
CID 1941
Matt Smith:
Add reason for limiting Supported Regulatory Classes element to 32 octets in TGy.
Is 32 enough for 11n with 20 and 40 MHz in 5 GHz?
Matt will submit letter ballot comment in TGy
3282
Bjorn to ask commenter why Supported Regulatory Classes element needs to be in beacon.
CID 2119
Suggested resolution should be changed from Accept to Counter
After Bjorn updates 07/524 to rev 1, Bruce will start conversation with TGy chair regarding resolution of 11n E-CSA comments.
Eldad Perahia, Intel Corporation
Eldad Perahia, Intel Corporation

5. Discussion on 07/568 CID 568 CID 187 CID 718 CID 2470 CID 3108
April 2007
doc.: IEEE /0570r0
April 2007
Discussion on 07/568
CID 568
Bill: mention in reason for rejection that there will not be exact alignment between OBSSs
CID 187
Jim: add few sentences reasoning that 11n is not causing undo harm.
Matt Smith: commenter’s statement that hidden node problem is eliminated by 11e is not true
CID 718
Tomo & Matt F were in agreement on the proposed resolution
CID 2470
Eldad: move this CID to 07/569
CID 3108
Bruce: remove double negative from proposed resolution
Eldad Perahia, Intel Corporation
Eldad Perahia, Intel Corporation

6. April 2007
doc.: IEEE /0570r0
April 2007
Discussion on 07/569
Eldad: Edits to need to be general enough for all PHYs.
Need to modify use of “operating channel width is 20 MHz”
Need to modify use of LENGTH and PLCP Header
Eldad Perahia, Intel Corporation
Eldad Perahia, Intel Corporation

7. Attendance April 2007 April 2007 doc.: IEEE 802.11-07/0570r0
Eldad Perahia, Intel Corporation
Eldad Perahia, Intel Corporation