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Re: [STDS-802-11-TGBE] 答复: [STDS-802-11-TGBE] 答���: [STDS-802-11-TGBE] Feedback Requested for CRs related to MLD architecture - 11-21-0577



Ming,

 

I disagree with how you describe scoreboarding based on 21/577r5.  I reference this text:

When MLO is being used, the “Block Ack Scoreboarding” block in the MLD Upper MAC sublayer manages the BA status of the MPDUs (of this BA session) that are received on any setup link. The “Block Ack Scoreboarding” block in the MLD Lower MAC sublayer manages the BA status of the MPDUs (of this BA session) that are received on this link. It may convey BA status of the MPDUs received on another link if it obtained such info from the other link via the MLD Upper MAC sublayer.

From this, it can be seen that the MLD Upper MAC sublayer manages the scoreboarding for all MPDUs in this BA session, on all the links.  The scoreboarding in the MLD Lower MAC sublayer is only the scoreboard for MPDUs that happen to be received over that link, and optionally for some/all other MPDUs on other links.  This is just a local link optimization.  HT-immediate block ack can be implemented by responding based on the Lower MAC sublayer’s (partial) scoreboard, or optionally with additional information about other links if the implementation desires to do so.

 

Mark

 

From: Ganming(Ming Gan) <ming.gan@xxxxxxxxxx>
Sent: Wednesday, July 14, 2021 2:21 AM
To: STDS-802-11-TGBE@xxxxxxxxxxxxxxxxx
Subject: [STDS-802-11-TGBE] 答复: [STDS-802-11-TGBE] 答复: [STDS-802-11-TGBE] Feedback Requested for CRs related to MLD architecture - 11-21-0577

 

Hello Mark

 

Sorry for missing your email. Based on 21/577r5, each link maintains its own scoreboard and the MLD Upper MAC sublayer optionally delivers the BA record on one link to the MLD Lower MAC sublayer of other links. Now it seems the size of the scoreboard of each link is quite important since each STA will use this to provide reception status. However, it is still confusing how to implement the HT-immediate block ack architecture, including WinSizeO, WinSizeR. What do you think about it?

 

Best wishes

Ming Gan

 

发件人: Duncan Ho [mailto:dho@xxxxxxxxxxxxxxxx]
发送时间: 2021714 6:54
收件人: STDS-802-11-TGBE@xxxxxxxxxxxxxxxxx
主题: Re: [STDS-802-11-TGBE] 答复: [STDS-802-11-TGBE] Feedback Requested for CRs related to MLD architecture - 11-21-0577

 

Hi Mark,

 

Yes, adding it to your 21/1111 sounds good to me. I think that would be a good clarification.

 

Thanks,

Duncan

 

From: mark.hamilton2152@xxxxxxxxx <mark.hamilton2152@xxxxxxxxx>
Sent: Monday, July 12, 2021 4:57 PM
To: Duncan Ho <dho@xxxxxxxxxxxxxxxx>; STDS-802-11-TGBE@xxxxxxxxxxxxxxxxx
Subject: RE: [STDS-802-11-TGBE]
答复: [STDS-802-11-TGBE] Feedback Requested for CRs related to MLD architecture - 11-21-0577

 

CAUTION: This email originated from outside of the organization.

By the way, we could add this to document 11-21/1111, if you are worried about touching 11-21/0577 since it has already passed straw poll.

 

Mark

 

From: mark.hamilton2152@xxxxxxxxx <mark.hamilton2152@xxxxxxxxx>
Sent: Monday, July 12, 2021 5:49 PM
To: 'Duncan Ho' <dho@xxxxxxxxxxxxxxxx>; STDS-802-11-TGBE@xxxxxxxxxxxxxxxxx
Subject: RE: [STDS-802-11-TGBE]
答复: [STDS-802-11-TGBE] Feedback Requested for CRs related to MLD architecture - 11-21-0577

 

Ming/Duncan,

 

Should we add a statement that the Block Ack agreement is between the peer MLDs, the scoreboarding function that is in the Lower MAC sublayer is just a “link local” optimization that may provide partial information about block ack status?  That is, it is not where the overall block ack agreement is negotiated or maintained.

 

Mark

 

From: Duncan Ho <dho@xxxxxxxxxxxxxxxx>
Sent: Monday, June 28, 2021 12:07 PM
To: STDS-802-11-TGBE@xxxxxxxxxxxxxxxxx
Subject: Re: [STDS-802-11-TGBE]
答复: [STDS-802-11-TGBE] Feedback Requested for CRs related to MLD architecture - 11-21-0577

 

Hi Ming,

 

The diagram and associated text made no such requirement/assumption since they are meant for describing the functions and not how the detailed parameters are set or negotiated, etc.

 

Thanks,

Duncan

 

From: Ganming(Ming Gan) <ming.gan@xxxxxxxxxx>
Sent: Monday, June 28, 2021 7:33 AM
To: STDS-802-11-TGBE@xxxxxxxxxxxxxxxxx
Subject: [STDS-802-11-TGBE]
答复: [STDS-802-11-TGBE] Feedback Requested for CRs related to MLD architecture - 11-21-0577

 

CAUTION: This email originated from outside of the organization.

Hello Duncan

 

I have a general question about the figure. Does it imply the size of each scoreboard for each link needs negotiation during ADDBA request/response?

Best wishes

Ming Gan

发件人: 顾祥新 (Xiangxin Gu) [mailto:Xiangxin.Gu@xxxxxxxxxx]
发送时间: 2021510 17:04
收件人: STDS-802-11-TGBE@xxxxxxxxxxxxxxxxx
主题: Re: [STDS-802-11-TGBE] Feedback Requested for CRs related to MLD architecture - 11-21-0577

 

Hi Duncan,

 

Thank you for the contribution!

I think we can have a more general example in Figure 35-xxx Example MLD and the affiliated STA communication system, such as 2 STAs in non-AP MLD setting up link1 and link3 with AP MLD which has 3 STAs.

 

 

BR,

 

Xiangxin

Unisoc Technologies Co., Ltd.

+86 21 20360600 3324

 

 

 

From: Arik Klein <arik.klein@xxxxxxxxxx>
Sent: Thursday, May 6, 2021 5:15 PM
To: STDS-802-11-TGBE@xxxxxxxxxxxxxxxxx
Subject: Re: [STDS-802-11-TGBE] Feedback Requested for CRs related to MLD architecture - 11-21-0577

 

Now with the doc…

 

Sorry.

 

Regards,

Arik

 

From: Arik Klein
Sent:
יום ה 06 מאי 2021 12:12
To: 'Duncan Ho' <dho@xxxxxxxxxxxxxxxx>; STDS-802-11-TGBE@xxxxxxxxxxxxxxxxx
Subject: RE: [STDS-802-11-TGBE] Feedback Requested for CRs related to MLD architecture - 11-21-0577

 

Hi Duncan,

 

Thanks for sharing this document.

I’ve attach my comments with my colleague (Stephen McCann) comments.

 

I’ll appreciate your review for these comments.

 

Regards,

Arik

 

From: Duncan Ho <dho@xxxxxxxxxxxxxxxx>
Sent:
יום ד 28 אפריל 2021 21:00
To: STDS-802-11-TGBE@xxxxxxxxxxxxxxxxx
Subject: [STDS-802-11-TGBE] Feedback Requested for CRs related to MLD architecture - 11-21-0577

 

Hi all,

 

Please see https://mentor.ieee.org/802.11/dcn/21/11-21-0577-00-00be-cr-mld-architecture.docx and let me know if you have any comments or questions.

 

Thanks,

Duncan


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