Abstract: A method of transmitting a multi-carrier signal by a transmitter uses at least two transmit antennas to at least one receiver using at least one receive antenna. At least one estimate of at least one transmission downlink channel is obtained. A transmission stage performs at least one iteration of the following steps, for at least one downlink channel: transmitting payload data over the downlink channel, while taking account of the downlink channel estimate; and updating the downlink channel estimate, while taking account of acknowledgment information transmitted by the receiver associated with the downlink channel and acknowledging reception of the payload data.

Abstract: The invention relates to a method of receiving a signal corresponding to a multicarrier signal transmitted via at least one transmission channel, the method comprising an estimation step (11) of estimating said channel and delivering overall information about said channel in the frequency domain, referred to as a “frequency response” and comprising frequency samples. According to the invention, such a method also comprises: a sharing step (12) of sharing said frequency samples in at least two frequency sample vectors; a transform step (13) of transforming said frequency sample vectors from the frequency domain to a transform domain and delivering, for at least one frequency sample vector, a partial response of said channel in said transform domain; and a feedback step (14) of transmitting a return signal back to said transmitter, the return signal conveying samples extracted from said partial responses and representative of said channel in said transform domain.

Abstract: The invention relates to a method of receiving a signal corresponding to a multicarrier signal transmitted via at least one transmission channel, the method comprising an estimation step (11) of estimating said channel and delivering overall information about said channel in the frequency domain, referred to as a “frequency response” and comprising frequency samples. According to the invention, such a method also comprises: a sharing step (12) of sharing said frequency samples in at least two frequency sample vectors; a transform step (13) of transforming said frequency sample vectors from the frequency domain to a transform domain and delivering, for at least one frequency sample vector, a partial response of said channel in said transform domain; and a feedback step (14) of transmitting a return signal back to said transmitter, the return signal conveying samples extracted from said partial responses and representative of said channel in said transform domain.

Abstract: A method of transmitting a multi-carrier signal by a transmitter using at least two transmit antennas to at least one receiver using at least one receive antenna, the method comprising an obtaining step of obtaining at least one estimate of at least one transmission downlink channel. According to the invention, such a method comprises a transmission stage performing at least one iteration of the following steps, for at least one downlink channel: transmitting payload data over said downlink channel, while taking account of said downlink channel estimate; and updating said downlink channel estimate, while taking account of acknowledgment information acknowledging reception of said payload data and transmitted by the receiver associated with said downlink channel.