Patent ID: 8477732

Claim:
An apparatus for determining a transmission parameter for uplink transmission of a signal, comprising: a reception unit receiving a channel quality indicator from a mobile station, the mobile station comprising: a first transmission antenna and a second transmission antenna; a storage unit storing relationship among a channel quality indicator, a modulation scheme and a channel coding rate, and one or both of transmission power and a transmission bandwidth of the mobile station; a determination unit determining a set of transmission parameters based on the relationship; and a transmission unit transmitting the set of transmission parameters to the mobile station, wherein the determination unit comprises: a channel condition measurement unit measuring a first uplink channel quality indicator based on a reception power level of an uplink pilot channel in an uplink from the first transmission antenna of the mobile station and a second uplink channel quality indicator based on a reception power level of an uplink pilot channel in an uplink from the second transmission antenna of the mobile station; an average channel condition calculation unit calculating an average channel quality indicator based on the first and second uplink channel quality indicators; a transmission power determination unit determining transmission power for transmission of an uplink data channel from the mobile station based on the average channel quality indicator; a transmission bandwidth determination unit determining a transmission bandwidth for the uplink data channel based on the uplink channel quality indicators and the transmission power; and a modulation level and channel coding rate determination unit determining a pair of a modulation level and a channel coding rate for the uplink data channel based on the uplink channel quality indicators and the transmission bandwidth.