Re: [STDS-802-11-TGBE] [EXT] [STDS-802-11-TGBE] A new TTT - Nominal packet padding values selection rules

[Edward Au <edward.ks.au@xxxxxxxxx>]

Hi Yan,

Added:

MAC

Nominal packet padding values selection rules

Mengshi Hu

Lei Huang, Yan Zhang

R1

Uploaded:   Presented:   Straw Polled:

Motion 146, #SP334

Regards,
Edward

On Mon, Mar 1, 2021 at 12:05 PM Yan(msi) Zhang <yan.zhang_5@xxxxxxx> wrote:

Hi Edward,

 

  Can you please add me to TTT for this PDT?

 

Thanks

Yan

 

From: Edward Au <edward.ks.au@xxxxxxxxx>
Sent: Saturday, February 27, 2021 1:26 PM
To: STDS-802-11-TGBE@xxxxxxxxxxxxxxxxx
Subject: [EXT] [STDS-802-11-TGBE] A new TTT - Nominal packet padding values selection rules

 

Caution: EXT Email

Hi all,

 

Per the email thread below, there is a new TTT - Nominal packet padding values selection rules.   If you would like to work on Mengshi on this topic, please let me know and I will add you to his TTT.

 

Joint

Nominal packet padding values selection rules

Mengshi Hu

R1

Uploaded:   Presented:   Straw Polled:

Motion 146, #SP334

Regards,
Edward

 

 

 

---------- Forwarded message ---------
From: humengshi <humengshi@xxxxxxxxxx>
Date: Fri, Feb 26, 2021 at 7:57 PM
Subject: 答复: [STDS-802-11-TGBE] 答复: [STDS-802-11-TGBE] Revision 93 - IEEE802.11be Spec Text Writing: Volunteers Assignment
To: Yan(msi) Zhang <yan.zhang_5@xxxxxxx>, STDS-802-11-TGBE@xxxxxxxxxxxxxxxxx <STDS-802-11-TGBE@xxxxxxxxxxxxxxxxx>, Edward Au <edward.ks.au@xxxxxxxxx>

 

Hi Edward,

 

After the discussion with Yan, it is agreed that it’s better to use the title “Nominal packet padding values selection rules” for the text related to the 11ax subclause 26.12 HE PPDU post-FEC padding and packet extension. I’d like to volunteer to be the POC of this one. Thank you.

Best regards,

Mengshi Hu

 

 

发件人: Yan(msi) Zhang [mailto:yan.zhang_5@xxxxxxx]
发送时间: 2021年2月26日 15:15
收件人: STDS-802-11-TGBE@xxxxxxxxxxxxxxxxx
主题: Re: [STDS-802-11-TGBE] 答复: [STDS-802-11-TGBE] Revision 93 - IEEE802.11be Spec Text Writing: Volunteers Assignment

 

Hi Mengshi,

 

  I feel that whole subclause is talking about how to select PE duration based on either PPE thresholds or Nominal_PACKET_PADDING values for packet extension. Can we have title like “Rules for packet extension” or “PE duration selection rules”?

 

Thanks

Yan

From: humengshi <humengshi@xxxxxxxxxx>
Sent: Thursday, February 25, 2021 10:29 PM
To: Yan(msi) Zhang <yan.zhang_5@xxxxxxx>; STDS-802-11-TGBE@xxxxxxxxxxxxxxxxx
Subject: 答复: [STDS-802-11-TGBE] 答复: [STDS-802-11-TGBE] Revision 93 - IEEE802.11be Spec Text Writing: Volunteers Assignment

 

Hi Yan,

 

Thanks for your comments.

I think although it is named 26.12 HE PPDU post-FEC padding and packet extension, the text in 26.12 mainly talks about how to select the Nominal Packet Padding value 0, 8 and 16 μs in 11ax (for both the PPET method and the Common Nominal Packet Padding method), which is not given in the part PPDU padding process. You can see the Table 26-13 PPE thresholds per PPET8 and PPET16 in 11ax in 26.12. Neither the PPE Thresholds field in subclause 9 nor the 36.3.12.3.4 EHT PPDU padding process touches the selection of nominal packet padding values. If you think the name EHT PPDU post-FEC padding and packet extension is confusing, we can think another name for the text on the selection of nominal packet padding values.

 

Best regards,

Mengshi Hu

 

发件人: Yan(msi) Zhang [mailto:yan.zhang_5@xxxxxxx]
发送时间: 2021年2月26日 11:32
收件人: humengshi <humengshi@xxxxxxxxxx>; STDS-802-11-TGBE@xxxxxxxxxxxxxxxxx
主题: RE: [STDS-802-11-TGBE] 答复: [STDS-802-11-TGBE] Revision 93 - IEEE802.11be Spec Text Writing: Volunteers Assignment

 

Hi Mengshi, Edward

 

  We have 36.3.12.3.4 EHT PPDU padding process which includes both pre-FEC and post-FEC padding (post-FEC padding bits calculation is done in Encoding process for an EHT MU PPDU). Although 11ax has a separate clauses post-FEC padding, I think they have the same contents. Besides, in 11ax, the text are “The pre-FEC padding process is described in this subclause (Pre-FEC padding process), and the encoding and post-FEC padding process are described in 27.3.12.5 (Coding).” It is kind of confusing that post-FEC padding is put in another subclause. I think it is naturally to have post-FEC text after encoding since it is related to pre-FEC padding factor, NCBPS etc parameters.

 

  You can do check those contents and see if you still need to create a new subclause.

 

Thanks

Yan

 

From: humengshi <humengshi@xxxxxxxxxx>
Sent: Thursday, February 25, 2021 6:51 PM
To: STDS-802-11-TGBE@xxxxxxxxxxxxxxxxx
Subject: [STDS-802-11-TGBE] 答复: [STDS-802-11-TGBE] Revision 93 - IEEE802.11be Spec Text Writing: Volunteers Assignment

 

Hi Edward,

 

While preparing the PDT on PPE Thresholds field in EHT Capabilities, I find it is also needed to create a subclause EHT PPDU post-FEC padding and packet extension similar to the subclause 26.12 HE PPDU post-FEC padding and packet extension in 11ax. Therefore, could you please add one row for EHT PPDU post-FEC padding and packet extension? I’d like to volunteer to be the POC of this one. Thank you.

Best regards,

Mengshi Hu

 

 

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