Patent ID: 8204145

Claim:
A method comprising: receiving a signal Y i from a multiple input multiple output (MIMO) channel, said signal Y i including data symbols X i that were matrix multiplied by a beam forming matrix V i within a remote transmitter before being transmitted into said MIMO channel, said MIMO channel having a channel matrix H i ; using said signal Y i to determine a combined channel {tilde over (H)} i that includes effects of both the beam forming matrix V i and the channel matrix H i ; performing a singular value decomposition (SVD) of the combined channel {tilde over (H)} i to determine a beam forming matrix {tilde over (V)} i representing a correction that is needed for the beam forming matrix V i ; and receiving said beam forming matrix {tilde over (V)} i at said remote transmitter to be combined with said beam forming matrix V i to generate a new beam forming matrix V i+1 for use in a subsequent data transmission from said remote transmitter.