Patent ID: 7894852
Filing Date: 2011-02-22
Classification: H04B,H04L

Abstract:
1. A method for operating a MIMO client device to support wireless communication with a MIMO base station, the method for operating the MIMO client device comprising: determining a plurality of first channel estimates based upon signals received from the MIMO base station, the plurality of first channel estimates representative of the MIMO base station as a transmitter and the MIMO client device as a receiver; transmitting the plurality of first channel estimates to the MIMO base station; receiving at least one channel reciprocity matrix from the MIMO base station, the at least one channel reciprocity matrix being non-diagonal and based upon at least the plurality of first channel estimates; receiving from the MIMO base station a second channel estimate representative of the MIMO client device as a transmitter and the MIMO base station as a receiver; transforming the second channel estimate using the at least one channel reciprocity matrix to produce a transformed second channel estimate, the transformed second channel estimate representative of the MIMO base station as a transmitter and the MIMO client device as a receiver; and using the transformed second channel estimate to determine channel equalizer coefficients for use in equalizing signals received from the MIMO base station.