Hi Mahmoud.
For Method 3, I don't see it practical for AP to perform sensing where it is ‘hard’ to separate out signals from different devices. However, if a vender really wanted to build a very complex AP
doing that, then I don't see anything more needed from the standard side - the AP could always choose to allocate the same resource (RU/SS) to multiple devices. So, I do not think this is a topic which needs to be handled in the standards forum as it is more
of an AP product differentiation.
Regards,
Ali
From: Mahmoud Kamel <000019de5e655b6b-dmarc-request@xxxxxxxxxxxxxxxxx>
Sent: Monday, May 9, 2022 2:03 PM
To: STDS-802-11-TGBF@xxxxxxxxxxxxxxxxx
Subject: [STDS-802-11-TGBF] Follow-up on the Discussion on NDP Transmission in TF Sounding Phase
WARNING:
This email originated from outside of Qualcomm. Please be wary of any links or attachments, and do not enable macros.
Hi all,
To follow-up on the discussion we started in contribution 22/0654r0, I share the table below to summarize the methods we presented in the meeting.
Please share your feedback/comments/suggestions to different methods to enable efficient WLAN sensing in various use cases and scenarios, including the one with large number of sensors.
The figure below is included for reference.
|
|
Method 1 |
Method 2a |
Method 2b |
Method 3 |
|
Domain |
Time Domain |
Frequency Domain |
Space Domain |
Non-Orthogonal |
|
Legacy Use |
Secure/regular LTF in the uplink (Ranging) |
Not used in the current standard |
HE TB Ranging NDP |
Not used in the current standard |
|
Support in the Standard |
Supported |
Not Supported |
Supported |
Not Supported |
|
Use cases |
Multiple Triggering Sequence in case of large number of triggered sensing responders
|
Triggering multiple low-end devices (20MHz-only STAs) |
Triggering multiple sensors such that each sensor sends the NDP over the entire bandwidth simultaneously
|
Coarse efficient sensing in scenarios with a large number of sensing responders |
|
Pros |
Simplicity |
Support of 20MHz-only STAs
|
Simplicity |
Efficiency (Support of a large number of sensing responders in the same TXOP) |
|
Potential Problems |
|
|
|
|
Best regards,
Mahmoud
From: Mahmoud Kamel
Sent: Wednesday, April 20, 2022 6:37 PM
To: Hanxiao (Tony, WT Lab) <0000177ab8f731c4-dmarc-request@xxxxxxxxxxxxxxxxx>;
STDS-802-11-TGBF@xxxxxxxxxxxxxxxxx
Subject: RE: TGbf meeting on April 19, and 21
Hi Tony,
Please add the contribution below to the agenda for next week.
|
19-Apr-2022 ET |
2022 |
654 |
0 |
TGbf |
Discussion on NDP Transmission in TF Sounding Phase |
Mahmoud Kamel (InterDigital) |
20-Apr-2022 11:38:02 ET |
Best Regards,
Mahmoud
From:
stds-802-11-tgbf@xxxxxxxxxxxxxxxxx <stds-802-11-tgbf@xxxxxxxxxxxxxxxxx>
On Behalf Of Hanxiao (Tony, WT Lab)
Sent: Monday, April 18, 2022 12:09 PM
To: STDS-802-11-TGBF@xxxxxxxxxxxxxxxxx
Subject: TGbf meeting on April 19, and 21
Dear all,
This is a reminder and
call for submissions for the upcoming
meeting
on:
1.
April 19 (Tuesday), 10am - 12:00pm ET
2.
April 21 (Thursday), 23：00
- 01:00am ET
Please note:
1.
Please
send the agenda
request
at least
24 hours prior to the call, following the format below:
•
DCN, Title, Author (affiliation), Time duration
2.
I will cancel the call if there is no request received 24 hours prior to a call.
3.
Please
upload
your submissions (revision 0) on mentor
24 hours prior to the meeting so that members would have a chance to review those submissions offline.
Otherwise,
1.
If there is not enough time during the meeting, the presentation will be delayed to the next meeting.
2.
If there is enough time during the meeting, the presentation will be moved to the end of the queue and be presented in the end. However, any related SP should
be delayed to the next meeting.
4.
Please send the
motion
request (with related DCN, and SP result) around
10+5 days
before the meeting (for teleconference, not for Plenary or Interim meeting), so that the TG chair could send the 10 day advance notice to the 802.11 reflector, after getting the
approval from the WG chair.
5.
Dial-in information:
April 19 (Tuesday), 10am - 12:00pm ET
Join the Webex meeting here:
https://ieeesa.webex.com/ieeesa/j.php?MTID=m9244d36d009ef54b321bf1cf3fa2279b
Meeting number: 234 549 47435
Meeting password: wireless (94735377 from phones and video systems)
Join by phone: Tap to call in from a mobile device (attendees only)
+1-408-418-9388 USA Toll
Global
call-in numbers
Access code: 234 549 47435
Join from a video system or application Dial
23454947435@xxxxxxxxxxxxxxxx
You can also dial 173.243.2.68
and enter your meeting number.
Join using Microsoft Lync or Microsoft Skype for Business Dial
23454947435.ieeesa@xxxxxxxxxxxxxx
Need help? Go to
http://help.webex.com
April 21 (Thursday), 23：00
- 01:00am ET
Join the Webex meeting here:
https://ieeesa.webex.com/ieeesa/j.php?MTID=mb1ea2e6f8cefd600dd335a94f8b4f309
Meeting number: 234 597 43051
Meeting password: wireless (94735377 from phones and video systems)
Join by phone: Tap to call in from a mobile device (attendees only)
+1-408-418-9388 USA Toll
Global
call-in numbers
Access code: 234 597 43051
Join from a video system or application Dial
23459743051@xxxxxxxxxxxxxxxx
You can also dial 173.243.2.68
and enter your meeting number.
Join using Microsoft Lync or Microsoft Skype for Business Dial
23459743051.ieeesa@xxxxxxxxxxxxxx
Need help? Go to
http://help.webex.com
Best Regards : )
Tony Xiao
Han
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