| 摘要 |
In handover control, a mobile station selects a base station suitable for the class of data services that the mobile station uses in radio communication. A data collection means (1a) collects measurement data (6) that indicates communication quality of uplink and downlink paths between a mobile station (2) and base stations (3, 4, 5). A candidate evaluation means (1b) determines which base station is optimal for uplink, as well as which base station is optimal for downlink, based on the measurement data (6). A station selection means (1c) determines which link has priority, either uplink or downlink, according to the class of data services that the mobile station (2) uses in radio communication, and selects as a target base station for handover the base station that has been determined as being optimal for the link having priority.
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