Patent ID: 8594692

Claim:
A base station device used in a system in which a first band is allocated on a priority basis to a first mobile station located in a first region, and in which a second band is allocated on a priority basis to a second mobile station located in a second region, the base station device comprising: a receiver to receive an interference parameter indicating a level of interference caused by the first mobile station in communications of the second mobile station and a state parameter representing a communication state of the first mobile station; an interference comparator to compare the interference parameter with a predetermined interference threshold value; a state comparator to compare the state parameter with a predetermined communication threshold; an allocating factor calculator to calculate an allocating factor used for allocating the communication band; a weighting factor calculator to calculate a weighting factor for weighting the allocating factor; an allocation unit to allocate each communication band to a mobile station having a largest product of the allocating factor and the weighting factor; and a transmitter to transmit information of an allocated band to the first mobile station; wherein the weighting factor calculator increases a first weighting factor used for allocating the first band to the first mobile station when a level of a communication state represented by the state parameter is smaller than a level of a communication state represented by the communication threshold value, and the weighting factor calculator reduces a second weighting factor used for allocating the second band to the first mobile station when a level of interference represented by the interference parameter is larger than a level of interference represented by the interference threshold value, and a level of a communication state represented by the state parameter is larger than a level of a communication state represented by the communication threshold value.