A base station being a first base station comprising: a wire communication unit; a wireless communication unit; and a communication controller (140, 142, 342) configured to control communication with a plurality of second base stations different from the first base station by the wire communication unit and communication with a wireless terminal by the wireless communication unit, wherein the communication controller (140, 142, 342) of the first base station is configured to control communication with the plurality of second base stations, the communication including information about grouping of the wireless terminal, wherein the communication controller (140, 142, 342) is further configured to control Cooperative Multi-Point, CoMP, communication with the plurality of second base stations based on the information about grouping, wherein, if the first base station does not group the wireless terminal, the communication controller (140, 142, 342) is configured to carry out a determination process with each of the second base stations in a one-by-one manner, wherein the communication controller (140, 142, 342) is configured to exclude at least one of the second base stations from a CoMP partnership after determining that the at least one of the second base stations groups the wireless terminal, the wireless terminal is not contained in a terminal list of the at least one of the second base stations and the at least one of the second base stations is not open to the wireless terminal, wherein the communication controller (140, 142, 342) is configured to control CoMP communication with the second base stations which are not excluded from the CoMP partnership. a wire communication unit; a wireless communication unit; and a communication controller (140, 142, 342) configured to control communication with a plurality of second base stations different from the first base station by the wire communication unit and communication with a wireless terminal by the wireless communication unit, wherein the communication controller (140, 142, 342) of the first base station is configured to control communication with the plurality of second base stations, the communication including information about grouping of the wireless terminal, wherein the communication controller (140, 142, 342) is further configured to control Cooperative Multi-Point, CoMP, communication with the plurality of second base stations based on the information about grouping, wherein, if the first base station does not group the wireless terminal, the communication controller (140, 142, 342) is configured to carry out a determination process with each of the second base stations in a one-by-one manner, wherein the communication controller (140, 142, 342) is configured to exclude at least one of the second base stations from a CoMP partnership after determining that the at least one of the second base stations groups the wireless terminal, the wireless terminal is not contained in a terminal list of the at least one of the second base stations and the at least one of the second base stations is not open to the wireless terminal, wherein the communication controller (140, 142, 342) is configured to control CoMP communication with the second base stations which are not excluded from the CoMP partnership.