| 摘要 |
A 3G wireless control unit, a WiFi wireless control unit, and a WiMAX wireless control unit each select one data communication method from data communication methods that each supports, and any one supporting the selected data communication method performs communication using the selected data communication method. A 3G non-coverage area search processing unit, a WiFi non-coverage area search processing unit, and a WiMAX non-coverage area search processing unit each detect a base station supporting a data communication method that each supports. A search control unit controls the frequency of execution of a base-station detecting process performed by the WiMAX non-coverage area search processing unit on the basis of respective communication states and predetermined priorities of data communication methods.
|
