a wireless communication section configured to wirelessly communicate with a communication terminal present in a target space;

an information acquiring section configured to acquire a value representing congestion of the target space;

an Artificial Intelligence (AI) processing section configured to input the value representing the congestion of the target space acquired by the information acquiring section to a learned model trained with training data including the value representing the congestion of the target space, a bandwidth, and throughput, and configured to acquire a bandwidth output by the learned model; and

a bandwidth controller configured to cause the wireless communication section to perform wireless communication using the bandwidth acquired by the AI processing section.