[STDS-802-11-TGBN] 答复: [STDS-802-11-TGBN] NPCA straw polls

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Hi, Yuki and Yuxin,

Thanks for your SPs and comments. Here’s my question on SP3.

SP3:

Do you agree to include the following into the 11bn SFD?

* An NPCA STA shall indicate in the NPCA mode that NPCA operation is disabled when the operating channel width of the NPCA STA is changed from channel width more than TBD MHz to equal or less than TBD MHz

Do you have a vision that the NPCA Supported BW can be variant for different NPCA STAs implementation?

For example, a non-AP operating with 160MHz announces that its NPCA supported BW is 80MHz, while another 2nd non-AP operating with 320MHz announces that its NPCA supported BW is 160MHz, and at the same time a 3rd non-AP operating with 320MHz announces that its NPCA supported BW is 80MHz, like the table list below?

	Operating BW	NPCA Supported BW
Non-AP 1	160MHz/80MHz	80MHz
Non-AP 2	320MHz/160MHz	160MHz
Non-AP 2	80MHz	Not supported for NPCA
Non-AP 3	320MHz/160MHz/80MHz	80MHz

If so, I am wondering if it makes the transmission scheduler of AP more complicated? And a further signaling overhead is required for non-AP to indicate their NPCA supported BW.

Basically I guess it is good to define a unified NPCA Supported BW for all UHR NPCA STAs for implementation simplicity. Or, do you have any other considerations?

Best Regards!

--------------------------------------------------

Junbin Chen

发件人: Jay Yang <yang.zhijie@xxxxxxxxxx>
发送时间: 2025年2月27日, 星期四下午 07:49
收件人: STDS-802-11-TGBN@xxxxxxxxxxxxxxxxx
主题: Re: [STDS-802-11-TGBN] NPCA straw polls

Hi Yuki,

Thanks for your SPs.

Regarding your SP4, I'm not sure which the TBD frames meaning, it's too broad. Based on Liwen's contribution, I think the group address frame and Beacon frame shall be not transmitted in NPCA primary channel, but I'm not sure about other frames. Could you change "TBD frames" to "Beacon frame and the group addressed frames" in the SP text?

SP4:
Do you agree to include the following into the 11bn SFD?
* An NPCA AP shall not transmit TBD frames when operating in the NPCA primary channel

Thanks

Best Regards

Jay Yang (杨志杰)

Original

From: yuxin.lu <eeluyx@xxxxxxxxx>

To: STDS-802-11-TGBN@xxxxxxxxxxxxxxxxx <STDS-802-11-TGBN@xxxxxxxxxxxxxxxxx>;

Date: 2025年02月27日 18:05

Subject: Re: [STDS-802-11-TGBN] NPCA straw polls

Hi Yuki,

Thanks for preparing those SPs, for SP3, below are some comments for your consideration

Would you clarify whether this NPCA STA includes both AP and non-AP?

. if it includes AP, we have an agreement (Motion #134) that says that [An AP shall not allow the use of NPCA within its BSS if the BSS operating bandwidth is less than or equal to TBD MHz, where TBD = 40 MHz or 80 MHz]

. if it includes non-AP, non-AP can simply indicate its NPCA Supported BW with other operation parameters to clarify its NPCA operating capability to AP, instead of performing disabling NPCA which introduces additional signaling overhead; for example, if non-AP indicates NPCA Supported BW=80 MHz, then its operating channel width is changed from 80MHz to 40MHz (should notify this change to AP via OMI/OMN), non-AP automatically disables NPCA since it can no longer support 80MHz, or it can update its NPCA operating capability to AP with a new NPCA Supported BW value

Best Regards

Yuxin

TCL

On Thu, 27 Feb 2025 at 15:15, Yuki Yoshikawa <00003a6e12a10726-dmarc-request@xxxxxxxxxxxxxxxxx> wrote:

Hi Alfred,

Could you please schedule time to consider the following straw polls?
Comments, questions and suggestions are welcome!

SP1:
Do you agree to include the following into the 11bn SFD?
* An NPCA STA may dynamically indicate a mode of NPCA indicating whether NPCA operation is enabled or disabled Detailed signaling is TBD

SP2:
Do you agree to include the following into the 11bn SFD?
* An AP shall indicate in the capability that the NPCA operation is not supported when the operating band of an AP is 2.4GHz band

SP3:
Do you agree to include the following into the 11bn SFD?
* An NPCA STA shall indicate in the NPCA mode that NPCA operation is disabled when the operating channel width of the NPCA STA is changed from channel width more than TBD MHz to equal or less than TBD MHz

SP4:
Do you agree to include the following into the 11bn SFD?
* An NPCA AP shall not transmit TBD frames when operating in the NPCA primary channel

SP5:
Do you agree to include the following into the 11bn SFD?
* An NPCA AP shall only respond to a frame in the NPCA primary channel received from a NPCA STA that is associated to the NPCA AP.

SP6:
Do you agree to include the following into the 11bn SFD?
* An NPCA STA shall only respond to a frame in the NPCA primary channel received from another NPCA STA which is the destination of ICF or the source of ICF.

Thanks,
Yuki

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