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Re: [STDS-802-11-TGBE] PDT-MAC-MLO-BSS Parameter Update

Hi Ming,


I agree with the below observation.

The current motion suggests a change sequence field for all APs of an MLD.

The spec should cover the Multi-BSS case where the AP corresponds to a nonTxBSSID.

 

In my previous email, I had proposed spec text for addressing this case for the nonTxBSSID and other APs of the MLD for that nonTxBSSID.

 

I would strongly suggest we address it in D0.1.

 

In addition, I noticed rev4 doesn’t address all of the items I had pointed out in my previous email.


Regards,
Abhi

 

From: Cariou, Laurent <laurent.cariou@xxxxxxxxx>
Sent: Thursday, September 24, 2020 9:15 AM
To: STDS-802-11-TGBE@xxxxxxxxxxxxxxxxx
Subject: Re: [STDS-802-11-TGBE] PDT-MAC-MLO-BSS Parameter Update

 

CAUTION: This email originated from outside of the organization.

Hi Ming,

Please address the case when the AP is a non-transmitted BSSID.

 

We have a clear requirement for an AP to include “Change sequence” for the AP of the same MLD.

When the AP is not part of a multi-BSSID or when the AP is a transmitted BSSID, you covered that.

When the AP is a non-transmitted BSSID, obviously it is the transmitted BSSID that has to include the “change sequence” for the AP of the same MLD as the non-transmitted BSSID. This last part is missing in your text and has to be there to make this complete.

 

Thanks

Laurent

 

From: Ganming (Ming) <ming.gan@xxxxxxxxxx>
Sent: Thursday, September 24, 2020 2:31 AM
To: STDS-802-11-TGBE@xxxxxxxxxxxxxxxxx
Subject: [STDS-802-11-TGBE] 答复: [STDS-802-11-TGBE] PDT-MAC-MLO-BSS Parameter Update

 

Hi Abhi

 

Baseline may be correct depending on how you interpret this sentence. If there is only critical update among a few beacon frames, could we have beacon frames in this case?

 

Anyway this unclear description could be avoided now because off adding Probe Response frame (now it is Beacon and Probe Reponses frames).

 

Regarding MBSSID, let us discuss it later.

 

Best wishes

Ming Gan

 

发件人: Abhishek Patil [mailto:appatil@xxxxxxxxxxxxxxxx]
发送时间: 2020年9月24日 2:37
收件人: STDS-802-11-TGBE@xxxxxxxxxxxxxxxxx
主题: Re: [STDS-802-11-TGBE] PDT-MAC-MLO-BSS Parameter Update

 

Hi Ming,

 

I believe there is an error in baseline spec for the reference you cited:

 

The increment to a change sequence value should occur at the next beacon so it should be in a single frame (Beacon frame not Beacon frame(s)).

The subsequent Beacon and Probe Response frames would carry the new (incremented) value for change sequence.

 

Per SP #191/#77, RNR in Probe Response frame would also include a field for carrying the most recent value of change sequence. This text is not covered in your doc.

 

Regarding the missing text on MBSSID, I prefer that we address it now. But if you have a strong opinion, could you please add a TBD so that we can address it in D0.1?

 

Regards,

Abhi

 

From: Ganming (Ming) <ming.gan@xxxxxxxxxx>
Sent: Wednesday, September 23, 2020 9:52 AM
To: Abhishek Patil <appatil@xxxxxxxxxxxxxxxx>; STDS-802-11-TGBE@xxxxxxxxxxxxxxxxx
Subject: 答复: [STDS-802-11-TGBE] PDT-MAC-MLO-BSS Parameter Update

 

CAUTION: This email originated from outside of the organization.

Abhi, please see the attached response.

 

发件人: Abhishek Patil [mailto:appatil@xxxxxxxxxxxxxxxx]
发送时间: 2020年9月23日 22:34
收件人: STDS-802-11-TGBE@xxxxxxxxxxxxxxxxx
主题: Re: [STDS-802-11-TGBE] PDT-MAC-MLO-BSS Parameter Update

 

Hi Ming,

 

This doc is not yet ready for SP. It is missing some of the changes we discussed during the previous IEEE call. It also needs to cover the changes in RNR IE 9.4.2.170.2 clause.

 

Could you please take a look at my comments embedded in the attached file?

 

Regards,
Abhi

 

From: Cariou, Laurent <laurent.cariou@xxxxxxxxx>
Sent: Monday, September 21, 2020 10:30 AM
To: STDS-802-11-TGBE@xxxxxxxxxxxxxxxxx
Subject: Re: [STDS-802-11-TGBE] PDT-MAC-MLO-BSS Parameter Update

 

CAUTION: This email originated from outside of the organization.

Thanks Ming.

See attached and below some suggestions.

Attached doc also has some additional comments as some of the sentence you have don’t work for non-transmitted BSSIDs.

Also, size of Change Sequence is TBD.

Thanks,

Laurent

 

 

An AP within an AP MLD shall include in the Beacon and Probe Response frames it transmits a Change Sequence fields for each of all APs in the same AP MLD. 

  • The Change Sequence field for each of other APs of the MLD shall be carried in the MLD Parameters subfield in the TBTT Information field of the Reduced Neighbor Report element corresponding to that AP.
  • The Change Sequence field for the AP shall be carried in the TBD field.

 

If an AP within an AP MLD is a transmitted BSSID in a Multiple BSSID set, then the AP shall additionally:

  • Include a Change Sequence field for each of other APs of the MLDs to which the non-transmitted BSSIDs of the same Multiple BSSID set are affiliated to in the MLD Parameters subfield in the TBTT Information field of the Reduced Neighbor Report element corresponding to that AP
  • include in the Multiple BSSID element of the Beacon and Probe Response frames it transmits a Change Sequence fields for each of nontransmitted BSSIDs in the same multiple BSSID set .
    • The Change Sequence field for each of the nontransmitted BSSIDs shall be carried in a TBD field

 

An AP within an AP MLD shall increase the value (modulo TBD maximum value) of the Change Sequence field in the next transmitted Beacon frame(s) for the AP when a critical update occurs for that AP. An AP within an AP MLD shall increase the value (modulo TBD maximum value) of the Change Sequence field in the next transmitted Beacon frame(s) for another AP in the same AP MLD when a critical update occurs for that AP. An AP within an AP MLD shall increase the value (modulo TBD maximum value) of the Change Sequence field in the next transmitted Beacon frame(s) for a nontransmitted BSSID in the same multiple BSSID set when a critical update occurs to these APs.The critical updates are defined in 11.2.3.15 (TIM Broadcast) and the TBD additional update can be added.

 

 

From: Ganming (Ming) <ming.gan@xxxxxxxxxx>
Sent: Thursday, September 10, 2020 6:25 AM
To: STDS-802-11-TGBE@xxxxxxxxxxxxxxxxx
Subject: [STDS-802-11-TGBE] 答复: [STDS-802-11-TGBE] PDT-MAC-MLO-BSS Parameter Update

 

Thanks xiaofei

 

Please see the attached file for my response

 

Best wishes

Ming Gan

 

发件人: Xiaofei Wang [mailto:Xiaofei.Wang@xxxxxxxxxxxxxxxx]
发送时间: 2020年9月10日 20:40
收件人: Ganming (Ming) <ming.gan@xxxxxxxxxx>; STDS-802-11-TGBE@xxxxxxxxxxxxxxxxx
主题: RE: [STDS-802-11-TGBE] PDT-MAC-MLO-BSS Parameter Update

 

Dear Ming,

 

Thanks for preparing the document. I have a few comments in the attached document.

 

 

Best regards,

 

Xiaofei Clement Wang

Principal Engineer | InterDigital

T: (631) 622.4028

E:  Xiaofei.wang@xxxxxxxxxxxxxxxx

 

From: Ganming (Ming) <ming.gan@xxxxxxxxxx>
Sent: Wednesday, September 9, 2020 03:00
To: STDS-802-11-TGBE@xxxxxxxxxxxxxxxxx
Subject: [STDS-802-11-TGBE] 答复: [STDS-802-11-TGBE] PDT-MAC-MLO-BSS Parameter Update

 

Hello Laurent and Younghoon

 

Thanks, see attached response.

 

Best wishes

Ming Gan

 

发件人: Cariou, Laurent [mailto:laurent.cariou@xxxxxxxxx]
发送时间: 2020年9月9日 6:15
收件人: STDS-802-11-TGBE@xxxxxxxxxxxxxxxxx
主题: Re: [STDS-802-11-TGBE] PDT-MAC-MLO-BSS Parameter Update

 

Hi Ming,

Thanks a lot.

See attached some comments/suggestions.

Best

Laurent

 

From: Young Hoon Kwon <younghoon.kwon@xxxxxxx>
Sent: Tuesday, September 8, 2020 11:05 AM
To: STDS-802-11-TGBE@xxxxxxxxxxxxxxxxx
Subject: Re: [STDS-802-11-TGBE] PDT-MAC-MLO-BSS Parameter Update

 

Hi Ming,

 

Thanks for the text.

I have some comments in the attached.

 

Thanks,

Young Hoon

 

From: Ganming (Ming) <ming.gan@xxxxxxxxxx>
Sent: Monday, September 7, 2020 4:51 AM
To: STDS-802-11-TGBE@xxxxxxxxxxxxxxxxx
Subject: [STDS-802-11-TGBE] PDT-MAC-MLO-BSS Parameter Update

 

Dear all TTT members for MAC-MLO-BSS Parameter Update,

 

I uploaded it to the server, comments are welcome.

https://mentor.ieee.org/802.11/dcn/20/11-20-1332-00-00be-pdt-mac-mlo-bss-parameter-update.docx

 

Best wishes

Ming Gan

 

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