Patent ID: 7675845

Claim:
A method for space-time coding in a wireless system comprising M transmission antennas, the method comprising: a transmitter of the wireless system generating an orthogonal matrix for signals to be transmitted by the transmitter; the transmitter of the wireless system generating a coefficient matrix corresponding to the orthogonal matrix according to at least one of the formulas: ( h 1 * h 2 * ⋰ h M * ) ⁢ ⁢ and ⁢ ⁢ M ∑ m = 1 M ⁢  h m  2 ⁢ ⁢ ( h 1 * h 2 * ⋰ h M * ) , wherein h m includes channel status information from the m th transmission antenna to a receiver; and the transmitter of the wireless system generating a transmission matrix according to the orthogonal matrix and the coefficient matrix.