Wireless communication system and base station

A base station in a wireless communication system that includes a first base station with which a terminal is configured to communicate and the base station to which a radio signal transmitted from the terminal becomes an interference power and is capable of handing over the first base station of the terminal, comprising:

• an interference power measurement part configured to input therein the radio signal transmitted from the terminal and to measure a received power density for each unit time and for each frequency that were previously determined;
• a multicast transmission part configured to specify a terminal that is inferred to exert the interference to the base station and to multicast transmit information for urging the handover to multicast receiver base stations that include the first base station and are at least a part of the base stations;
• and
• an interference generation rule inferring part configured to infer an interference generation rule that is a generation rule of the received power density being more than or equal to a previously set threshold based on a received power density for each unit time and for each frequency that is measured by the interference power measurement part,
• wherein the multicast transmission part is configured to multicast transmit the information including the inferred interference generation rule.

A base station in a wireless communication system that comprises a plurality of base stations including a first base station with which a terminal is configured to communicate and the base station to which a radio signal transmitted from the terminal becomes an interference power, and is capable of performing handover of a connection destination of the terminal, further comprising:

• a mobile-terminal-of-interference-source specifying part configured to receive information that is multicast transmitted from the base station having detected an interference power being more than or equal to a previously set threshold, and to specify a terminal that is inferred to exert the interference to the base station of the multicast source among the terminals connecting to the base station;
• and
• a handover processing part configured to perform a handover processing about the terminal specified by the mobile-terminal-of-interference-source specifying part;
• wherein the mobile-terminal-of-interference-source specifying part is configured to receive an interference generation rule that is based on the interference power detected by the base station and is multicast transmitted from the base station, to collate a log of an uplink communication resource that the base station allocated to the terminal and the interference generation rule, and to specify a terminal that is inferred to exert the interference power to the base station being a source of the multicast.