The mobile communication system determines an optimum power for maximizing the number of simultaneous connections by using a linear programming method or a non-linear programming method on the basis of a constraint condition for specifying the transmission power being a prescribed power or below and a conditional expression of an inequality for satisfying the quality. 送電力が一定値以下である拘束条件、品質を満たす不等式の条件式から線形計画法または非線形計画法により、同時接続数を最大にする最適な電力を決定する - 特許庁