Patent ID: 7664458

Claim:
A wireless network control system comprising: a plurality of base stations that detect and communicate with a mobile terminal; a plurality of relay stations, each of the plurality of relay stations being associated with a respective base station of the plurality of base stations and being communicatively connected to the respective base station, and each of the plurality of relay stations relaying a communication between the respective base station and the mobile terminal; and a wireless network control apparatus that controls communication between the plurality of base stations and the mobile terminal, wherein the wireless network control apparatus comprises; a management table that stores information (i) identifying the association between each of the plurality of relay stations and the respective base station associated therewith, and (ii) identifying a relationship between a relay station of the plurality of relay stations that is communicatively connectable with a base station of the plurality of base stations that is not associated therewith; a search section that, when more than one base station of the plurality of the base stations detect the mobile terminal through the relay station associated therewith, searches for a base station, from the base stations that detected the mobile terminal, that can be communicatively connected to all of the relay stations associated with the base stations that detected the mobile terminal, based on the information stored in the management table; and a control section that allows the communication connection to be established between the base station identified by the search and the respective relay stations associated with the base stations that detected the mobile terminal and that can be communicatively connected to the base station identified by the search, wherein the base station identified by the search comprises a combining section that performs diversity combining by combining radio signals received from the mobile terminal through the respective relay stations, and wherein, when more than one base station of the plurality of base stations detect the mobile terminal in an accommodation area, the base station identified by the search (i) establishes the communication connection to a relay station associated with another base station that detected the mobile station, and (ii) subsequently performs the diversity combining by combining the radio signals received from the mobile terminal through the relay station associated with the base station identified by the search and radio signals received from the mobile terminal through the relay station associated with the another base station.