Hi Yan,
After thinking more about Option 2, we think it could be improved as below for more accuracy.
Distribution Bandwidth: A
minimum channel width of 20, 40, 60, and 80 MHz over which the subcarriers of a distributed-tone resource unit (DRU) are allocated
The reason for the change is as follows. Take a 26-tone DRU with a DBW of 20MHz as an example. It holds true if we say it is also allocated over a DBW of 40, 60, or 80 MHz since 20MHz is a portion of a larger
channel width. To avoid this confusion, we should take the minimum of the four channel width choices that the DRU resides in as a more accurate definition of the distribution bandwidth.
As to “channel width” vs. “channel bandwidth”, there are many instances of “channel width” in REVme and 11be. It feels more natural to use “width” in the definition text and “bandwidth” in the definition title.
Thanks,
Ying
From: Yan (PACE) Zhang <00002dbff69c3987-dmarc-request@xxxxxxxxxxxxxxxxx>
Sent: Monday, April 28, 2025 4:14 PM
To: STDS-802-11-TGBN@xxxxxxxxxxxxxxxxx
Subject: Re: [STDS-802-11-TGBN] Definition of Distribution Bandwidth
Hi Mahmoud,
Thank you for initiating the discussions.
I think Option 2 is good. Can you please change channel width to channel bandwidth in the sentence?
Yan
A few comments proposed to add a definition for “Distribution Bandwidth” in the next draft of 11bn, and in yesterday’s PHY call, I received a suggestion to initiate a discussion to agree on a definition.
Below are 3 options for the definition, please share your thoughts on which one of them captures the concept accurately.
Option1: Distribution bandwidth of a DRU: The minimum bandwidth
of a channel in which all DRUs with the same number of tones and the same tone spacing as this DRU can be allocated.
Option2: Distribution bandwidth: A 20, 40, 60, or 80 MHz channel width over which the subcarriers of a distributed-tone
resource unit (DRU) are allocated.
Option3: Distribution bandwidth: The
width of a channel over which the subcarriers of one or more distributed-tone resource units (DRUs) are distributed.
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