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Re: [STDS-802-11-TGBN] Requesting feedback on 25/1204 "DBE Operation with NPCA"

Hi Binita,

 

Thank you for your presentation.

 

I think the option of SP2 in 25/1204r1 is not very efficient. When a non-DBE STA sees “NPCA Supported/Enabled”, it does not know whether it is supported/enabled within BSS BW or DBE BW. The non-DBE STA would send OMP Request to the AP and may find out that NPCA PCH is outside of BSS BW.

 

I think before going to the details, it is better to first check whether the group agree to extend NPCA to the DBE BW. We have a submission for similar purpose, 25/0835 Coexistence of Features with Operating Mode Switching Operations.

 

We also have another submission 25/1591 for DBE+NPCA signaling options. I will upload the slides later; the idea is to have NPCA Enabled/Parameters indicated conditionally based on whether DBE is enabled or not, so that it would not change baseline NPCA behavior and would not introduce extra complexity or confusion for non-DBE/DBE STAs. I think it could help enable DBE+NPCA without introducing too much complexity or overhead.

 

Best regards

Yongsen

 

From: Binita Gupta <bingupta.ieee@xxxxxxxxx>
Sent: Thursday, September 11, 2025 11:00 AM
To: STDS-802-11-TGBN@xxxxxxxxxxxxxxxxx
Subject: [STDS-802-11-TGBN] Requesting feedback on 25/1204 "DBE Operation with NPCA"

 

Hi All, I presented 25/1204r1 in a TGbn Ad-hoc session today on "DBE Operation with NPCA" Thanks to members who provided their comments during the call and in the chat. Listing below the members who were in the queue. Please provide

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Hi All,

 

I presented 25/1204r1 in a TGbn Ad-hoc session today on "DBE Operation with NPCA"

 

Thanks to members who provided their comments during the call and in the chat. Listing below the members who were in the queue. 

Please provide your feedback/comments on the contribution in this thread or to me.

 

Want to highlight that there are two cases to consider:

  • Case 1: NPCA was not enabled before DBE mode is enabled, then NPCA is enabled over DBE BW after DBE mode is enabled. E..g when BSS BW is 20/40 MHz in enterprise deployments, NPCA can't be enabled. When DBE mode is enabled with 80/160/320 MHz, then NPCA gets enabled over DBE BW.
  • Case 2: NPCA is enabled before DBE mode is enabled, then NPCA parameters can change after DBE mode enablement. E..g NPCA enabled over 80 MHz BSS BW, then DBE mode is enabled with DBE BW of 320 MHz. In this case, if all/most associated STAs support DBE over 320 MHz, then it is better for AP to change NPCA PCH to be in the S160 (as per D1.0 rules for NPCA PCH in the BSS BW), since then NPCA can still be performed if OBSS occupies more than P40.

In both these cases AP can send an NPCA critical update to enable NPCA (case 1) or change parameters for NPCA (case 2) after DBE mode is enabled.

 

[V] Gaurang Naik, Qualcomm • q

[V]Yan Li,ZTE • q

[V] Yongsen Ma, Samsung • q

[V] Shravan, Huawei • q

[V] Laurent Cariou, Intel • q

[v] Liwen Chu, NXP • q

[V] Liangxiao Xin (OPPO) • q

Yunbo Li (Huawei) • Q

[V] Seongho Byeon, Samsung Electronics • q

[V] Salvatore Talarico (Nokia) • q

[V] Zhenpeng Shi, Huawei • q

[V] Mahmoud Hasabelnaby, Huawei • q

[V] Zhanjing Bao, ZTE • q

[V] Yingqiao Quan, Spreadtrum • q

[V] Klaus Doppler, Nokia • 

[v] Xiangxin.Gu, Spreadtrum

[V] Salvatore Talarico (Nokia)

 

Thanks,

Binita

 

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