Dear Morioka-san,
Following today’s discussion, what do you think of the following sentence:
An EBCS AP generates a PHY-TXSTART.request primitive with the transmission rate information specified
by the dot11EBCSContentList dot11EBCSTrafficStreamPHYType and dot11EBCSTrafficStreamTxRate for each MPDU according to the EBCS content traffic stream ID. If dot11EBCSTrafficStreamPHYType is equal to 255, the AP may select a transmission rate following the rules specified in 10.6.5.3 (Rate selection for other group addressed Data and Management frames).
I looked at the clause, it didn’t say that it needs to use the lowest data rate, rather than one of the rates contained in the a basic rate set, which may be BSSBasicRateSet or Basic HT_MCS Set or one of the mandatory rates, even refers to rules for HE data rates.
Best regards,
Xiaofei Clement Wang
Principal Engineer | InterDigital
T: (631) 622.4028