Abstract: The station selects a communication frequency of the station among the hopping frequencies, and then, receives, as reception frames, the frames, which are transmitted from the access points through the selected communication frequency. The station extracts the control frames from the reception frames, and monitors the extracted control frames during a monitoring time interval. After that, the station determines the selected access point, on the basis of the results of the monitoring. And also, the station synchronizes itself with the selected access point on the basis of information included in the extracted control frames, together with the dwell time assigned for the selected access point.