| 摘要 |
PROBLEM TO BE SOLVED: To provide a base station device and a mobile communication system capable of decoding a signal of a desired cell in a data area with accuracy, without receiving the influence of an inter-cell interference among in the control area of a downlink radio frame.SOLUTION: A mobile station device performs channel estimation in a radio frame, using a reference signal arranged in the data area without a reference signal arranged in the control area of the radio frame. Based on the result of the channel estimation, the mobile station device detects an interference signal in the data area, which is transmitted from the base station device of the interference cell situated in the surroundings of the desired cell, and generates the reception signal replica of the interference signal. Then, the mobile station device executes interference cancellation processing which subtracts the reception signal replica of the interference signal from the reception signal received in the radio frame. Based on the reception signal after the execution of the interference cancellation processing, the mobile station device decodes the desired signal in the data area which is transmitted from the base station device of the desired cell. |
