Patent ID: 6600796
Filing Date: 2003-07-29
Classification: H04B,H04L

Abstract:
A method for detecting at least two transmitted signals transmitted by respective transmitting antenna elements, comprising:a) collecting at least two received signals from respective receiving antenna elements; b) multiplying a vector of said at least two received signals by a nulling vector, thereby to provide an estimated value corresponding to a specific one of said at least two transmitted signals, resulting in detection of the specific transmitted signal; c) at least partially cancelling the effect of said at least two the detected signal from the vector of received signals; and d) repeating step (b) in a preferred order until a respective said estimated value has been provided corresponding to each of the at least two transmitted signals; CHARACTERIZED IN THATe) the preferred ordering and each nulling vector are obtained from a channel matrix H of estimated channel coefficients; f) the obtaining of each of the nulling vectors and of the preferred ordering comprises effectively computing precisely one pseudoinverse that relates to the channel matrix H; and g the pseudoinverse is effectively computed without performing any matrix inversion operations.