a cell determining means for determining a boundary of a cell corresponding to one of said plurality of wireless base stations, said cell being smaller or equal to a coverage range of said one of said plurality of said wireless base stations, the boundary of a cell being determined by the cell determining means:

collecting power transmitted, and antenna gain, from each wireless base station,

computing a propagation loss from each of the wireless base stations at an arbitrary observation point, using a statistical technique employing an estimation model in which a radio wave damps depending upon distance or by use of a ray-tracing method,

computing power received from each wireless base station at the observation point,

deciding that the wireless base station that achieves maximum received power at the observation point is a connection base station at the observation point, and

determining the space between points in which connection base stations differ as cell boundaries;

an operational situation acquiring means for acquiring an operational situation of said cell by said cell, based upon operational information in each said cell; and

a displaying means for displaying cells in a service area of said radio communication system by displaying said cell boundaries determined by said cell determining means, and for displaying in each of said cells a uniform indication of the operational situation obtained by said operational situation acquiring means.