Re: [STDS-802-11-TGBE] Discussion on HE or EHT variant differentiation o

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Hi Ross, all,

Before we discuss on the call, I’d like to point out two things here:

We agreed A-PPDU is an R2 topic and there wasalmost no discussion in R1 on the feasibility of supporting mixing HE and EHT STA and how to mixing them. Given that, the hypothesis ofR1 STA is transparent to A-PPDU is very unsafe. I highly recommend to not design a protocol based on the presumably “transparency”.

Ross: HE STA will be in A-PPDU in r2, which is also transparent. Like I said, even though there is "danger" later, we can disallow AP2 to trigger r1 EHT STA to send EHT TB PPDU, whilst they should still be able to send HE TB PPDU. R1 EHT STA should not worse than HE only STA because an EHT STA is also a HE STA.

We just passed the SP of using B55 to indicate the presence of “special user field” a week ago and now this contribution is trying to revert the consensus. I don’t see a strong justification to go back and force.

Ross: this bit is used to indicate the presence of special user field, and there is no change to it at all. Once the AP needs to solicit EHT TB PPDU, regardless of A-PPDU or not, there should exist special user field.

BRs,

Xiaogang.

From: Yujian (Ross Yu) <ross.yujian@xxxxxxxxxx>
Sent: Friday, March 5, 2021 12:44 AM
To: STDS-802-11-TGBE@xxxxxxxxxxxxxxxxx
Subject: [STDS-802-11-TGBE] Discussion on HE or EHT variant differentiation of a trigger frame

Hi all,

I have updated the following contribution to r2 for people’s better understanding. This proposal talks about how a R1 EHT STA differentiates HE or EHT variant, or we can say, how to decide whether to transmit HE TB PPDU or EHT TB PPDU, when receiving a trigger frame. The proposed method 3 enables a R1 EHT STA to transmit either HE TB or EHT TB PPDU depending on a R2 AP’s schedule, with no additional bits needed. Just relies on the existing bits in the trigger frame.

https://mentor.ieee.org/802.11/dcn/21/11-21-0366-02-00be-dicussion-on-he-or-eht-variant-differentiation-of-a-trigger-frame.pptx

Please review and we can discuss in the next joint call. All comments are welcome.

regards

于健 Ross Jian Yu

Huawei Technologies

发件人: Yujian (Ross Yu)
发送时间: 2021年3月3日 20:24
收件人: asterjadhi@xxxxxxxxx;STDS-802-11-TGBE@xxxxxxxxxxxxxxxxx
主题: 答复: [STDS-802-11-TGBE] TGbe Teleconferences [03/01/2021 and 03/03/2021]: Agendas Posted

Hi Alfred,

Please add the following contribution to the joint queue, this is related with the trigger frame PDT (11/21-0259r3). Hence I want to discuss this together with the trigger frame PDT. Thanks.

https://mentor.ieee.org/802.11/dcn/21/11-21-0366-01-00be-dicussion-on-he-or-eht-variant-differentiation-of-a-trigger-frame.pptx (Ross Jian Yu, Huawei)

Regards

于健, Ross Yu

发件人: Alfred Asterjadhi [mailto:asterjadhi@xxxxxxxxx]
发送时间: 2021年2月27日 13:28
收件人: STDS-802-11-TGBE@xxxxxxxxxxxxxxxxx
主题: [STDS-802-11-TGBE] TGbe Teleconferences [03/01/2021 and 03/03/2021]: Agendas Posted

Hello all,

I uploaded an updated version of the agendas, which contains the agenda for the next conference calls, scheduled onMonday, March 01 (MAC/PHY), 19:00-22:00 ET andWednesday, March 03 (JOINT), 10:00-12:00 ET.

The agendas can be found here:

https://mentor.ieee.org/802.11/dcn/20/11-20-1917-30-00be-jan-mar-tgbe-teleconference-agendas.docx

DIAL IN DETAILS FOR MONDAY:

Join the MAC meeting here:https://ieeesa.webex.com/ieeesa/j.php?MTID=m7ff091053a52e440f4d2a5484310a902
Meeting number: 179 294 5804
Meeting password: wireless (94735377 from phones and video systems)

Join the PHY meeting here:https://ieeesa.webex.com/ieeesa/j.php?MTID=mcc198727c4432acc63dd6b70b1b2ae2e

Meeting number: 179 600 1391
Meeting password: wireless (94735377 from phones and video systems)

DIAL IN DETAILS FOR WEDNESDAY:

Join the JOINT meeting here:https://ieeesa.webex.com/ieeesa/j.php?MTID=m1d1c71d54a60bd6b9c5fafd719c959d9

Meeting number: 179 925 7715
Meeting password: wireless (94735377 from phones and video systems)

Notice: Please note that by now all authors of the submissions for PDTs and CRs (especially MAC) should have sent requests for feedback to the IEEE TGbe reflector. Members are invited to provide feedback for these contributions prior to the conference call via e-mail so that the time in the conf calls is used efficiently.

Best Regards,

Alfred

Alfred Asterjadhi, PhD

IEEE802.11 TGbe Chair,

Qualcomm Technologies Inc.

asterjadhi@xxxxxxxxx

aasterja@xxxxxxxxxxxxxxxx

Cell #: +1 858 263 9445

Office #: +1 858 658 5302

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Re: [STDS-802-11-TGBE] Discussion on HE or EHT variant differentiation of a trigger frame