METHOD AND DEVICE FOR TRANSMITTING A SIGNAL IN A MULTI-ANTENNA SYSTEM, SIGNAL AND METHOD FOR ESTIMATING THE CORRESPONDING TRANSMISSION CHANNELS

摘要

A method for transmitting a digital signal via n transmit antennas, wherein n is strictly greater than 2, comprising the steps of combining with a source data vector n vectors to be transmitted respectively by each of the transmit antennas by means of a coding matrix M with a yield equal to 1, using reference symbols known to at least one receiver whereby it is able to estimate at least three transmission channels corresponding respectively to each of said transmit antennas. According to the invention, said coding matrix M applies a mathematical transformation to the reference symbols prior to the transmission thereof.