The present invention allows the cell shape of any base station in
operation to be changed, thereby enabling services to be provided
according to the needs. A mobile terminal attempts to synchronize with a
perch channel to thereby check whether or not it can receive the signal,
thereby determining whether it belongs to the cell of the base station.
The mobile terminal uses the GPS to obtain location information to
identify the location and notifies a cell control apparatus of results
for cell determinations and location information. The cell control
apparatus selects a base station for which the corresponding cell shape
is to be changed, on the basis of the results for cell determinations and
the location information. The cell control apparatus instructs the
selected base station to change its cell shape. The base station changes
its cell shape according to the instruction.