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Hi Minyoung,An AP affiliated with the AP MLD that intends to initiate a sounding sequence to a STA in the listening operation and affiliated with the non-AP MLD shall begin frame exchanges by transmitting an initial Control frame to the STA affiliated with the non-AP MLD.Q1) How does the AP know that the STA is in the listening operation?Q2) In the 11-21-0287, you said, " When the AP of the AP MLD performs a backoff before the TXNAV timer expires, the AP of the AP MLD shall begin the frame exchange by transmitting the initial Control frame to the non-AP MLD."But, this is an error recovery procedure. The non-AP MLD is not in the listening operation mode.So, what is the AP behavior in this case? Is an initial Control frame required?It seems that more clarification is needed because of a new sentence.Based on the offline discussion, if the purpose is just for a clarification, I suggest to add the following NOTE. I think that the NOTE is sufficient as the clarification.—The AP MLD shall initiate a frame exchange sequence with the non-AP MLD on one of the enabled links by transmitting an initial Control frame to the non-AP MLD with the limitations specified above.NOTE- After the initial Control exchange, the AP MLD may initiate a sound sequence.If there is still unclear behavior, please let me know.Thanks,Yongho2021년 3월 30일 (화) 오후 5:01, Minyoung Park <mpark.ieee@xxxxxxxxx>님이 작성:Dear all,I've updated the CR documents based on the comments received during the MAC call on March 29. Please find the revised CR documents (288r3 and 319r3) below:Please let me know if you have any comments.Thanks,Minyoung
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