Hello Mark
I am not sure I get your point. Which part do you disagree?
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
[Ming] agree
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.
[Ming] I am not sure what do you mean by “This is just a local link optimization”. My question
which scoreboard does an affiliated STA use when it responds with BA. I assume it is local scoreboard, is this correct? My follow up question is how does each affiliated STA maintain its own scoreboard by following HT-immediate block ack architecture.
Best wishes
Ming Gan
发件人: Mark Hamilton [mailto:mark.hamilton2152@xxxxxxxxx]
发送时间: 2021年7月14日
20:57
收件人: STDS-802-11-TGBE@xxxxxxxxxxxxxxxxx
主题: Re: [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
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: 2021年7月14日
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: 2021年5月10日 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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