Patent ID: 6901062

Claim:
A wireless communication system providing adaptive beam forming in a transmit signal path, said system comprising: an array of antenna elements, wherein said array includes at least M spaced apart antenna elements; signal transmission circuitry providing M orthogonal renditions of a first signal, wherein said signal transmission circuitry is coupled to said M spaced apart antenna elements to provide a different one of said M orthogonal renditions of said first signal to each of said M spaced apart antenna elements for radiation in said transmit signal path; signal reception circuitry providing discrete information with respect to each one of said M orthogonal renditions of said first signal as determined from a composite receive signal of said M orthogonal renditions of said first signal; channel estimator circuitry coupled to said signal reception circuitry and receiving said discrete information with respect to each one of said M orthogonal renditions of said first signal, wherein said channel estimator circuitry determines a spatial signature associated with said composite receive signal; and beam forming circuitry providing beam forming coefficients to be used in transmission of a second signal, wherein said beam forming coefficients are determined as a function of a conjugate of said spatial signature.