A wireless communication system including a mobile station, an upper node, and a base station configured to wirelessly communicate with the mobile station, wherein the base station comprises: area determination means configured to determine, based on position information of the mobile station, which of a plurality of areas the mobile station is positioned, the plurality of areas being obtained by dividing a cell managed by the base station; and neighbour cell information notification means configured to notify the mobile station of neighbour cell information associated with the area where the mobile station is positioned, wherein the determination by the area determination means includes determination of an area that is subdivided into three dimensions, wherein the area determination means is configured to determine the area including an area center closest to the position of the mobile station notified from the mobile station as an area where the mobile station is positioned, and wherein the neighbour cell information notification means comprises notification means configured to notify from the base station to the mobile station the neighbour cell information associated with the area where the mobile station is positioned, the area being determined by the area determination means, wherein the mobile station comprises: reply means configured to reply a detection result to the base station in response to a message for peripheral cell measurement transmitted from the base station, the message including a condition to be a neighbour cell, the detection result being a result of detection of a peripheral cell that satisfies the condition to be the neighbour cell detected by the mobile station; wherein the base station further comprises: transmission means configured to transmit the message to the mobile station; and transfer means configured to transfer the detection result to the upper node; wherein the upper node comprises: return means configured to return identification information as the neighbour cell information associated with the area where the mobile station is positioned, the identification information being obtained by the upper node and indicating the peripheral cell satisfying the condition to be the neighbour cell transferred from the transfer means; and wherein the base station further comprises: storage means configured to store the neighbour cell information associated with the area where the mobile station is positioned, the neighbour cell information being returned from the return means. area determination means configured to determine, based on position information of the mobile station, which of a plurality of areas the mobile station is positioned, the plurality of areas being obtained by dividing a cell managed by the base station; and neighbour cell information notification means configured to notify the mobile station of neighbour cell information associated with the area where the mobile station is positioned, wherein the determination by the area determination means includes determination of an area that is subdivided into three dimensions, wherein the area determination means is configured to determine the area including an area center closest to the position of the mobile station notified from the mobile station as an area where the mobile station is positioned, and wherein the neighbour cell information notification means comprises notification means configured to notify from the base station to the mobile station the neighbour cell information associated with the area where the mobile station is positioned, the area being determined by the area determination means, reply means configured to reply a detection result to the base station in response to a message for peripheral cell measurement transmitted from the base station, the message including a condition to be a neighbour cell, the detection result being a result of detection of a peripheral cell that satisfies the condition to be the neighbour cell detected by the mobile station; transmission means configured to transmit the message to the mobile station; and transfer means configured to transfer the detection result to the upper node; wherein the upper node comprises: return means configured to return identification information as the neighbour cell information associated with the area where the mobile station is positioned, the identification information being obtained by the upper node and indicating the peripheral cell satisfying the condition to be the neighbour cell transferred from the transfer means; and return means configured to return identification information as the neighbour cell information associated with the area where the mobile station is positioned, the identification information being obtained by the upper node and indicating the peripheral cell satisfying the condition to be the neighbour cell transferred from the transfer means; and storage means configured to store the neighbour cell information associated with the area where the mobile station is positioned, the neighbour cell information being returned from the return means.