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Hi Mengshi, Thank you for your response.
In some sensing situations, it may be true that “The sensing initiator is the device who
needs the CSI information”. But, it doesn’t mean the sensing initiator has to be the sensing transmitter or sensing receiver in a sensing procedure. Also, there could be sensing situations
that the initiator doesn’t need the CSI information. The paragraphs are copied from the SFD. Hope it clears the confusion. A sensing initiator is a STA that initiates a WLAN sensing procedure.
A sensing responder is a STA that participates in a WLAN sensing procedure initiated by a sensing initiator. A sensing transmitter is a STA that transmits PPDUs used for sensing measurements in a WLAN
sensing procedure. A sensing receiver is a STA that receives PPDUs sent by a sensing transmitter and performs sensing measurements in a WLAN sensing procedure
(Motion 9, 20/1849r4; Motion 29, 21/1543r1). A STA can assume multiple roles in a WLAN sensing procedure
(Motion 9, 20/1849r4; Motion 29, 21/1543r1). In a WLAN sensing procedure,
a sensing initiator might be a sensing transmitter, a sensing receiver, both or neither
(Motion 10c, 21/0147r3; Motion 29, 21/1543r1). In a WLAN sensing procedure, a sensing responder might be a sensing transmitter, a sensing receiver, or both
(Motion 29, 21/1543r1). Best regards, Ray From: humengshi <humengshi@xxxxxxxxxx>
Hi Ray, Thanks for your comments. I’m not sure if I understand your question correctly. Please see my answer below: Comment 4: Why restricted to initiator only. It can work
for any TB-based measurement with a sensing responder acting as sensing Tx. Right? Answer 4: The sensing initiator is the device who
needs the CSI information. When the sensing responder is acting as a sensing Tx, it does not need to feed back the CSI information, because the initiator already knows it by receiving the NDP sent from the responder. Then the initiator does not need to select
who needs to feed back at that time. In addition, I do not limit the roles of the responder to the receiver only. For example, a instance with the responder acting as both the receiver and transmitter
is also fine. Best regards, Mengshi Hu 发件人:
Rui Yang <Rui.Yang@xxxxxxxxxxxxxxxx>
Hi Mengshi, Thank you for incorporating my comments.
Regarding my comment 4 on the sentence “The threshold-based sensing procedure is optional, and only applicable to a TB sensing measurement instance
where the initiator can be a
transmitter ”, by question is why a sensing
responder can’t be a sensing transmitter in the threshold-based sensing procedure. I did not ask why the sensing initiator cannot be a sensing
receiver. Hope you see the difference between the two questions.
Best regards, Ray From: humengshi <humengshi@xxxxxxxxxx>
Hi Ray, Thanks for your comments and suggestion.
Regarding the 4th comment, I agree with Oscar’s reply (Thank you Oscar for the reply). If the AP is a receiver, there is no need to have a report procedure.
Regarding the other comments, please see my comments below: Comments 1: What is
“selection procedure”, and
“additional” to what? In other words, if this is additional, what is the other selection procedure?
Answer 1: I assume there is a TB procedure introduced
in the other subclauses without the selection procedure. Thus I use the word
“additional” here, which is compared with the traditional TB case. We can further updated this later if the other part is clear, and then I will add those subclauses as the references. To avoid confusion, I can delete it this
time. Comments 2:
Should mention the figure is an example. Answer 2: Agree. Updated. Comments 3:
Should mention the figure is an example. Answer 3: Agree. Updated. Comments 4: Why restricted to initiator only. It can
work for any TB-based measurement with a sensing responder acting as sensing Tx. Right? Answer 4: Please see Oscar’s
comment below. Comment 5:
“The selection procedure in the threshold-based sensing is used to reduce the number of receivers being triggered in the Measurement Report procedure”. Motion 18 and 33 do not indicate or imply this sentence. Answer 5: That’s the motivation
of the threshold-based sensing procedure. I can delete it this time. Answer 6: I will delete it here. Comment 7: Sensing transmitter instead of transmitter Answer 7: I will add the word
“sensing” before the
“initiator” Best regards, Mengshi Hu 发件人:
stds-802-11-tgbf@xxxxxxxxxxxxxxxxx
<stds-802-11-tgbf@xxxxxxxxxxxxxxxxx>
代表 Oscar Au Rui, For your comment RY4: If the sensing initiator is the sensing receiver, my understanding is that there is no need to do the reporting phase and there is no need of the threshold-based sensing procedure. Oscar On Tue, Jan 25, 2022 at 9:20 AM Rui Yang <Rui.Yang@xxxxxxxxxxxxxxxx> wrote:
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