BASE STATION DEVICE AND RECEPTION BAND CONTROL METHOD

摘要

A mobile station (14) transmits a signal after establishment of connection by using the same number of subcarriers as the number of subcarriers not greater than a predetermined number used for transmission of a connection request signal (TCCH). A base station (12) detects the number of subcarriers used for transmission of the connection request signal (TCCH) (S106) and controls a transmission band width of a band pass filter for separating from the reception signal, a signal of the mobile station (14) contained in the transmission band and having a width-variable transmission band corresponding to the predetermined number of subcarriers according to the detected number of subcarriers (S108).