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Hi Liwen, Here is my proposed reject reason for the following CID:
REJECTED There is a reason to require all Trigger frames to be the first in the A-MPDU: it simplifies the receiver design. If it is known that a Trigger frame will always be received before a frame requiring acknowledgment, then the receiver design
is simplified in the sense that it has two possible response paths. If, at the time the receiver comes across an frame requiring acknowledgement it will either already have received a Trigger frame, in which case the response is format is an HE TB PPDU or
it will not have received a Trigger frame and the response format is known to be an SU PPDU (or no response at all if the ack policy is HTP Ack). Allowing Trigger frames to appear anywhere in the A-MPDU would complicate the receiver design: the receiver would
not know the response PPDU format (and timing) or whether to respond at all until the last frame of the A-MPDU had been processed. -Robert To unsubscribe from the STDS-802-11-TGAX list, click the following link: https://listserv.ieee.org/cgi-bin/wa?SUBED1=STDS-802-11-TGAX&A=1 |