Patent ID: 7760794

Claim:
A method of performing joint channel equalization in a wireless communication system, the method comprising: receiving signals from a plurality of transmitters; generating samples from the received signals, the samples being processed segment by segment; performing a channel estimation to generate channel matrices with respect to each of the transmitters; computing channel correlation matrices from the channel matrices; decomposing each of the channel correlation matrices to generate first diagonal matrices; performing a discrete Fourier transform (DFT) on each of the samples of the received signals; computing a Z vector by solving a plurality of independent linear systems with the first diagonal matrices and a corresponding sequence of samples after DFT processing; decomposing a channel matrix associated with a desired transmitter to generate a second diagonal matrix; computing a conjugate transpose of the second diagonal matrix; element-wise multiplying the conjugate transpose of the second diagonal matrix and the Z vector to generate an F vector; and performing an inverse discrete Fourier transform (IDFT) on the F vector to compute an estimate of a desired signal.