Patent ID: 8824390

Claim:
A base station apparatus comprising: a radio communication unit being capable of wirelessly communicating with a mobile station; and a frequency channel control unit being capable of determining a frequency channel to be used in an own cell formed by the radio communication unit, wherein the frequency channel control unit is further capable of: identifying whether or not a nearby cell formed by a nearby base station is a secondary cell that is dependently formed under condition of generation of a primary cell, and preferentially selecting a frequency channel different from that used in a nearby non-secondary cell as a frequency channel to be used in the own cell, wherein the secondary cell is a cell that does not transmit a broadcast channel and the non-secondary cell is a cell that transmits the broadcast channel, and wherein the frequency channel control unit is further capable of selecting, as the frequency channel to be used in the own cell, a frequency channel used in a cell transmitting no broadcast channel preferentially over a frequency channel used in a cell transmitting the broadcast channel.