Patent ID: 7535970

Claim:
A method for allocating transmit power in a receiver of a multi-code multiple antenna system including M transmit antennas and N receive antennas, the method employing K spreading codes to distinguish channels, the method comprising the steps of: determining a power ratio (γ) between transmit power of two adjacent spreading codes by using a ratio ( β η ) , which denotes a ratio of power of combined channel signals to noise power; and transmitting the determined power ratio (γ) to a transmitter, wherein the ratio (γ) is proportional to the power of the combined channel signals, is inverse proportional to the noise power, is determined to have a value within a range between ‘0’ and ‘1’, and is determined by an equation γ = 1 / ( 1 + P T ⁢ β η ) 1 / K , wherein P T denotes total given transmit power and k denotes a number of total channels.