Patent ID: 8554262

Claim:
A base station apparatus that performs radio communication with at least one first mobile station, comprising: a measurement unit including: a first measurement unit adapted to measure reception quality of an uplink signal transmitted from at least one second mobile station that is different from said at least one first mobile station and communicates with a first base station different from the base station apparatus; and a second measurement unit adapted to measure a downlink signal from the first base station; a calculation unit including: a first calculation unit adapted to calculate an estimated transmission power of the base station using the information of the downlink signal from the first base station; and a second calculation unit adapted to calculate an estimated loss value relating to a propagation loss between the second mobile station and the base station apparatus by using the reception quality and the estimated transmission power; and a determination unit adapted to determine a radio parameter that affects transmission power of radio communication between the base station apparatus and the first mobile station based on the estimated loss value.