Patent ID: 8554261

Claim:
A method for transmitting data from an access point in a multiple user multiple input multiple output (MU-MIMO) system, the method comprising: receiving a first indication of signal quality (ISQ) from a first station; receiving a second ISQ from a second station; setting a first power level and a first modulation and coding scheme (MCS) for transmission of a first aggregated media access control (MAC) protocol data unit (A-MPDU) to the first station as a function of the first ISQ and an amount of payload data corresponding to the first A-MPDU; setting a second power level and a second MCS for transmission of a second A-MPDU as a function of the second ISQ and an amount of payload data corresponding to the second A-MPDU, the amount of payload data corresponding to the first A-MPDU and the amount of a payload data corresponding to the second A-MPDU are different, and the first and second power levels and the first and second MCSs are set to produce a similar length for the first A-MPDU and the second A-MPDU; transmitting the first A-MPDU at the first power level and within a first frame to the first station; and transmitting the second A-MPDU at the second power level and within the first frame to the second station.