Patent ID: 7920638

Claim:
A method for sending a signal implemented by a system comprising Nt transmit antennas, with Nt≧2, wherein the method implements the following steps, for at least one vector comprising N symbols to be sent: dividing said vector into Nt sub-vectors, wherein the step of dividing is performed by the system; multiplying each of the Nt sub-vectors by a distinct sub-matrix sized (N/Nt,N), where N/Nt is an integer greater than or equal to 2, each sub-matrix being associated with one of the transmit antennas, and said sub-matrices being obtained by subdivision of a unitary square matrix sized (N,N), and wherein the step of multiplying is performed by the system; and sending the Nt sub-vectors resulting from the multiplying step, one from each of the Nt transmit antennas.