Patent ID: 7173975

Claim:
A wireless receiver comprising: a reception module including M r antennas for acquiring a block of M r input signals in each of N symbols intervals, where each input signal is a sum of M t input signals from a transmitter, received at said receiver after passing through a channel having a memory of v symbols intervals, where M r , and M t are integers greater than zero and v is an integer greater than 1, which channel is characterized by signal transmission coefficients that vary from each of said symbol intervals to a next of said symbol intervals, said channel expressible by a matrix H where a row of said matrix comprises signal transmission coefficients of said channel as experienced by one of said M r input signals at one of said N symbol intervals, and a next row of said matrix comprises signal transmission coefficients of said channel as experienced by said one of said M r input signals at a next one of said N symbol intervals; a channel estimation module, responsive to said M r input signals received at said N symbol intervals that, based on preselected pilot signals received and detected during A of said N symbols intervals, A being an integer, estimates said channel transmission coefficients and assigns them to corresponding A rows of said matrix {tilde over (H)}, matrix {tilde over (H)} being an estimate of matrix H; and an interpolation module that computes remaining rows of said matrix {tilde over (H)} from at least some of said A rows of said matrix {tilde over (H)}.