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Re: [STDS-802-11-TGBN] PDT MAC NPCA document 11-25-936 updated to r7


Juseong,

A careful reading of the r7 text should provide your answer:

If the OBSS sequence does not contain 3 PPDUs, then only condition 1 can be met, and if condition 1 is met, then only PHY header information can be used for NPCA.
Your example case seems to include only 2 PPDUs, so condition 2 cannot be satisfied.
Even if you examine a 3 PPDU sequence of: CTS2SELF, Trigger, TB PPDU, condition 2 would still not be satisfied, because the 1st PPDU needs to be an initial control frame, and CTS2SELF is not an initial control frame
(Anyway, I believe it is not!)


On Fri, Jun 20, 2025 at 8:05 AM 문주성 <theonebird81@xxxxxxxxx> wrote:
Hi Matthew, I'm Juseong Moon, affiliated with KNUT. I would like to clarify a point regarding your NPCA CR document. If the basic NAV is set due to an OBSS data transmission that begins with a CTS-to-Self or Trigger frame, which NPCA procedure should be applied in this case—PHY header-based or MAC header-based? Best regards, Juseong Moon

2025년 6월 19일 (목) 오후 12:05, Matthew Fischer <matthew.fischer@xxxxxxxxx>님이 작성:

In response to various comments received, a new revision is available.




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Matthew Fischer
Broadcom

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Matthew Fischer

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