(802.11n rate calculation method 802.11n adopts MIMO multi-antenna technology. When there are two antennas (that is, if it is 2X2), it has 16 rates in each bandwidth (recorded as MCS0-MCS15, MCS: Modulation and coding scheme) (when When there are 3 or 4 antennas that can transmit data at the same time, it should theoretically be 3 times or 4 times as much as when one antenna is used). The 16 rates are:)