Radio communication system, mobile station, base station, and communication control method

摘要

A radio communication system includes multiple base stations including a first base station and a second base station, and a mobile station. A candidate base station selector selects multiple candidate base stations that are candidates for a radio access point for the mobile station on the basis of the reception powers reported by the mobile station. When the mobile station actually executes wireless communication with the base station, an access-point base station determiner determines, as an access-point base station that is the actual radio access point for the mobile station, a base station corresponding to a best reception quality among reception qualities measured in the protected resource and reception quality measured in the non-protected resource.

主权项

1. A radio communication system comprising:
multiple base stations including at least one first base station and at least one second base station of which radio capability is less than that of the first base station; at least one mobile station that executes wireless communication by using at least one of a protected resource in which only the second base station transmits radio signals and a non-protected resource in which both the first base station and the second base station transmit radio signals; a candidate base station selector configured to select candidate base stations that are candidates for a radio access point for the mobile station; and an access-point base station determiner configured to determine an access-point base station that is an actual radio access point for the mobile station, the mobile station comprising: a reception power measurer configured to measure reception powers of radio signals received from the multiple base stations; a reception power reporter configured to report the reception powers measured by the reception power measurer to the candidate base station selector, wherein the candidate base station selector is capable of selecting multiple candidate base stations that are candidates for a radio access point for the mobile station on the basis of the reception powers reported by the reception power reporter of the mobile station, the mobile station further comprising: a reception quality measurer configured to, before the mobile station actually executes wireless communication with one of the candidate base stations, measure reception qualities of radio signals that are to be used for communication with the multiple candidate base stations selected by the candidate base station selector; and a reception quality reporter configured to report the reception qualities measured by the reception quality measurer to the access-point base station determiner, wherein the access-point base station determiner is configured to determine, as the access-point base station that is the radio access point for the mobile station, a base station corresponding to a best reception quality among the reception qualities of the radio signal used for communication between the second base station and the mobile station in the protected resource measured by the reception quality measurer of the mobile station and the reception quality of the radio signal used for communication between the first base station and the mobile station in the non-protected resource measured by the reception quality measurer of the mobile station.