| 摘要 |
PURPOSE:To smoothly perform the communication between different communicating areas by predicting the communicating area to invade next based on the history related to the movement of a mobile object. CONSTITUTION:In a storage part 7, the history related to the movement when a mobile object moves between communicating areas (zones) where the range is specified is stored. A CPU 1, based on the data to classify and prepare the history stored in the storage part 7, for example, the history of the movement of a past zone to plural patterns, performs the forecasting related to the zone to which the mobile object next invades. For example, the mobile object moves at a constant speed, and the switching time is obtained by extrapolation. Thus, the procedure necessary accompanying the zone switching can be started prior to the occurrence of the zone switching request. Then, even with the micro-cell system portable telephone set, the fast and high frequency zone switching can be responded to. |
