US Patent 7502597 Radio base station, mobile station

To realize smooth adaptive modulation control after handover even when the transmission frequency of parameters is lowered with transmission of the parameters used for the adaptive modulation control with timing satisfying predetermined conditions. As the mobile station for transmitting the parameters used for the adaptive modulation control in the timing satisfying the predetermined conditions, a mobile station comprises a transmitting unit for transmitting the parameters with the timing not satisfying the predetermined conditions.