Patent ID: 7664523

Claim:
A base station realizes a transmission power control when there is no mobile-apparatus transmission data, by a radio communication, the base station comprising: a measuring unit that measures a line quality based on a known sequence included in a reception signal; a first judging unit that judges whether there is the mobile-apparatus transmission data, based on a reception power of the mobile-apparatus transmission data; a first generating unit that decreases, when the first judging unit judges that there is no mobile-apparatus transmission data, a reference value for generating a transmission-power control command, by a value equivalent to an amount of an outer-loop adjustment that is variable according to a predetermined condition; and a second generating unit that compares generated reference value and measured line quality, when the generated reference value is larger than the measured line quality, generates a transmission-power control command for reducing a transmission power of a mobile apparatus, and when the generated reference value is smaller than the measured line quality, generates a transmission-power control command for increasing the transmission power of the mobile apparatus.