Steering matrix derivation

Abstract

An example method may include obtaining first beamforming feedback from a station based on first sounding signals from a first set of antennas selected from multiple antennas of an access point, and obtaining second beamforming feedback from the station based on second sounding signals from a second set of antennas selected from the multiple antennas of the access point. The method may also include, using the first beamforming feedback and the second beamforming feedback, determining correlational relationships between pairs of the multiple antennas of the access point, and deriving a beamforming steering matrix from the correlational relationships.

What is claimed is: 
     
         1 . A method comprising:
 transmitting, by a station, first beamforming feedback in response to first sounding signals from a first set of antennas;   transmitting, by the station, second beamforming feedback in response to second sounding signals from a second set of antennas; and   receiving, by the station, data that is beamformed according to a steering matrix, the steering matrix based on correlational relationships between pairs of the antennas of the first set of antennas and the second set of antennas, the correlational relationships based on beamforming feedback, including the first and the second beamforming feedback, first portions of a correlational matrix corresponding to relationships between antennas in the first set of antennas second portions of the correlational matrix corresponding to relationships between antennas in the second set of antennas.