Hi Yanjun,
I’m still struggling to understand the issue of the word “frame”, we can also say Co-BF Trigger frame is a variant of BSRP Trigger frame IMHO.
Anyway, since it’s an editorial thing, let’s have some more discussion, and we can easily fix it if we decide to make the change.
Best,
Jason
发件人: Yanjun Sun <yanjunsunstd@xxxxxxxxx>
发送时间: 2026年1月16日
2:50
收件人: Guoyuchen (Jason Yuchen Guo) <guoyuchen@xxxxxxxxxx>
抄送: STDS-802-11-TGBN@xxxxxxxxxxxxxxxxx
主题: Re: [STDS-802-11-TGBN] Co-BF/Co-SR Trigger frame format discussion
Hi Jason,
Thanks for fixing the M-BA part.
Regarding comment1, Technically Co-BF Trigger a variant of BSRP Trigger frame, as your current CR clearly says, instead of a new Control frame identified by a type. I concur with you the similar term was misused in many
other places throughput 11bn spec and the group needs to
start fixing it at some stage and your CR can be a good starting point. The changes also look minor in your CR, as we simply need to remove the “frame” after "Co-BF/SR Trigger”.
I will add
“Multi-STA BlockAck”. But I prefer to keep the
“frame” there, Co-BF Trigger frame is used a lot in the Co-BF subclause, and it is really a frame.
Thank you for your hard work. Please see 3 comments below.
1. As Co-BF Trigger is defined as a variant of BSRP Trigger frame instead of a new frame type, please delete
“frame” as follows and propagate the change throughout the CR.
“(#8312)9.3.1.22.14.4 Co-BF Trigger frame format
A Co-BF Trigger frame is a UHR variant BSRP Trigger frame that has the MAPC Trigger
Type field of the Common Info field set to 1. In a Co-BF Trigger frame”
2. Add BlockAck to the list, which is required by DUO, LLI or CFP
“— the duration of the MU-BAR Trigger frame sent by the AP + aSIFSTime + the duration of the BlockAck frame or MultiSTA BlockAck sent
by the AP’s scheduled STA(s), if the Ack policy of the MPDUs in the transmitted data PPDU is equal to
“Block Ack”.”
3. Please apply the similar changes above for the text for Co-SR in the 2nd half of your CR.
Dear TGbn members,
Please let me know your feedback on doc. 11-26/0023r1 on Co-BF/Co-SR Trigger frame format, thank you!
Best,
Jason
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