Communication terminal and method for use in radio communication system

摘要

A disclosed communication terminal MS includes a determination unit 21 analyzing a received downlink control signal and determining an allowable maximum uplink transmission power level, a measurement unit performing different frequency measurement in a transmission gap period, a threshold determination unit 932 determining whether the allowable maximum level is higher than or equal to a threshold within a predefined period before the start and/or after the end of the transmission gap period, a transmission power control unit 933 setting an uplink transmission power level, and a transmission unit 95 transmitting an uplink signal at the determined power level. If the allowable maximum level is higher than or equal to the threshold, the transmission power control unit 933 sets the uplink transmission power level to or below a predefined level lower than the allowable maximum level within the predefined period before the start and/or after the end of the transmission gap period.