Patent ID: 7242961

Claim:
A method for operating a wireless MIMO system comprising: determining forward and reverse channel reciprocity matrices between a first wireless MIMO device and a second wireless MIMO device, comprising: determining a plurality of forward composite channel estimates and a plurality of reverse composite channel estimates between the first wireless MIMO device and the second wireless MIMO device; and using the plurality of toward composite channel estimates and the plurality of reverse composite channel estimates to yield the forward channel reciprocity matrix and the reverse channel reciprocity matrix, wherein each of the forward channel reciprocity matrix and the reverse channel reciprocity matrix are non-diagonal; determining, by the first wireless MIMO device, a channel estimate; using the channel estimate to determine channel equalizer coefficients for the first wireless MIMO device; transmitting the channel estimate from the first wireless MIMO device to the second wireless MIMO device; the second wireless MIMO device using at least one of the forward channel reciprocity matrix and the reverse channel reciprocity matrix to transform the channel estimate to a transformed channel estimate; and the second wireless MIMO device using the transformed channel estimate to determine channel equalizer coefficients for the second wireless MIMO device.