Patent ID: 8731606

Claim:
A communication system comprising: a plurality of base station devices including at least one first base station device configured to provide one of first and second connection services to a mobile station device, the second connection service being lower in service quality than the first connection service; and a mobile station device configured to communicate with the base station devices, wherein the mobile station device comprises: a priority storing unit configured to store, for each of frequency bands predetermined, a priority for accessing a base station device using one of the associated frequency bands; a service type determining unit configured to choose, based on identification information received from the at least one first base station device, which of the first and second connection services to receive from each of the at least one first base station device; a priority determining unit configured to determine, based on a type of a connection service chosen by the service type determining unit, a priority for each of the frequency bands which is used by the at least one first base station device, and to update the priority stored by the priority storing unit based on the priority determined; and a selection evaluator configured to select a base station device to access, based on the priority updated by the priority determining unit and a reception level of a reception signal for each of the frequency bands which is received from each of the base station devices.