A large-cell base station (100) that forms a large cell is provided with: an upper-limit value determining unit (124) that determines an upper-limit value (Icap) for the amount of interference received by the large-cell base station (100) from one wireless terminal, on the basis of a tolerance value (Itotal) for the total amount of interference received by the large-cell base station (100) from wireless terminals connected to small-cell base stations within the large cell, and the number of small-cell base stations within the large cell; and a wired communication unit (140) that transmits, to the small-cell base stations, upper-limit value information indicating the upper-limit value (Icap) determined by the upper-limit value determining unit (124).