Patent ID: 8462730

Claim:
A wireless mobile station comprising: a controller that acquires in a first wireless cell an adjacent cell list through a wireless interface, the first wireless cell being a communication area of a wireless base station, a wireless link having been established between the wireless base station and the wireless mobile station, the adjacent cell list defining a second wireless cell adjacent to the first wireless cell; a first processor that searches wireless base stations for wireless cells detectable in the first wireless cell through the wireless interface, determines a third wireless cell which is not included in the acquired adjacent cell list among the wireless cell shaving been detected by the first processor, measures a wireless quality sensed by the wireless mobile station from the determined third wireless cell and stores the measured wireless quality in a storage device of the wireless mobile station; and a second processor that estimates, based on the measured wireless quality stored in the storage device, a wireless quality sensed by the wireless mobile station on assumption that the third wireless cell is added to the adjacent cell list, and determines whether or not the third wireless cell is to be added to the adjacent cell list, on the basis of the estimated wireless quality and a lowest wireless quality obtained without addition of the third wireless cell, wherein the second processor determines to add the third wireless cell to the adjacent cell list if a wireless quality at a point of disconnection of a communication in the first wireless cell is estimated to be higher than a wireless quality of the third wireless cell at the equivalent point.