A handover control method and a radio communication system comprising a mobile station and one or more base stations are provided. The mobile station receives transmissions from one or more base stations, and measures the signal strength of each received base station transmission. The base stations determine radio resource management related information regarding the base station and send the determined information to a mobile station. The mobile station combines information received from each base station with the measured signal strength of each base station, and sends the combined information to a base station. The base station receiving the information controls handover decisions regarding the mobile station on the basis of the received information.