RADIO COMMUNICATION SYSTEM, RADIO BASE STATION DEVICE, AND METHOD FOR CONTROLLING THEM

To provide a radio communication system capable of reducing the power consumption of a radio base station apparatus. A radio communication system according to the present invention includes a user apparatus (2) and a radio base station apparatus (1) that performs radio communication with the user apparatus (2). The radio base station apparatus (1) monitors a communication status of the user apparatus (2) present within a service area of the radio base station apparatus (1), and when there is no user apparatus (2) performing communication, intermittently transmits a signal that is to be transmitted from the radio base station apparatus (1) to the user apparatus (2). The intermittently-transmitted signal is, for example, a downward common channel signal. Further, the intermittent transmission is performed at regular intervals or random intervals.