Patent ID: 8385489

Claim:
A method for obtaining filter coefficients at an n th symbol location and a k th sub-carrier, to compensate for a wireless channel, comprising: obtaining channel estimation matrices, H n 1 k and H n 2 k , at corresponding locations, n 1 and n 2 , of at least two reference signals; obtaining a matrix, G n k , in an Eigen domain, wherein said matrix, G n k , is based on said channel estimation matrices, H n 1 k and H n 1 k , wherein said matrix, G n k , is obtained by interpolating G n1 k and G n2 k in said Eigen domain to at least one additional location; inverting said matrix, G k n , by inverting a diagonal matrix, D k n , comprised of said Eigen values of said matrix, G k n , along its diagonal; and determining said filter coefficients using said inverted matrix G n k −1 , wherein at least one step of said method is performed by at least one hardware device.