Methods of transmitting and receiving a multicarrier signal, and corresponding transmitter, receiver, return signal, and computer programs

摘要

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; anda 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.

主权项

1. A method comprising:
receiving with a receiver a signal corresponding to a multicarrier signal transmitted by a transmitter via at least one transmission channel, comprising:
an estimation step of the receiver estimating said at least one channel and delivering overall information about said at least one channel in the frequency domain, referred to as the “frequency response” and comprising frequency samples; and for said at least one channel:
at least one sharing step of subdividing the frequency response of said channel into blocks and delivering at least two frequency sample vectors, it being possible for a given frequency sample to belong to a plurality of frequency sample vectors;a transform step 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; anda feedback step of sending 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.