Patent ID: 8503566

Claim:
A method for transmitting a multi-carrier signal intended to be used by a system: with Nt transmit antennas, where Nt is greater than or equal to two, with Nr receive antennas where Nr is greater than or equal to one, of the type employing OFDM/OQAM modulation and distributing symbols in a time-frequency plane before transmission, wherein the symbols are distributed over blocks of a particular size n t .n f where n t ≧3 and n f ≧3 and the method comprising real type space-time coding of sequences of blocks of size n t .n f by a space-time coder with a coding matrix of particular size Nt×N and of particular efficiency Nc/N to generate Nt coded sequences of N blocks of symbols of an input sequence of Nc blocks of symbols; and before space-time coding, of channel coding two streams with a code of different particular efficiency different for each of the streams and wherein the symbols are distributed over blocks of size n t .n f by reserving at least some time-frequency locations at the edges of a block for symbols of the stream coded using the lowest efficiency code.