Patent ID: 7493134

Claim:
A transmission power control apparatus, comprising: a monitor section which monitors values of transmission quality of radio frequency signals in each of time windows composed of a first partial window and a second partial window that chronologically succeeds the first partial window, the radio frequency signals arriving from a terminal in time sequence; a trigger determination section which makes a first determination on whether or not a value of the transmission quality monitored by said monitor section in the first partial window is in a predetermined range of values and makes a second determination on whether or not transmission quality in said second partial window can be restored with a predetermined accuracy to transmission quality at a starting point of the first partial window when a result of the first determination is false; and a target value update section which updates a target value for inner loop power control in such a manner as to decrease a difference between a value of the transmission quality monitored by said monitor section and the target value of the transmission quality of the radio frequency signal under transmission power control when a result of the second determination is false.