Wireless communication system and wireless communication apparatus, both for use in broadcast wireless transmission

A wireless communication system composed of a wireless terminal, a plurality of base stations configured to perform wireless communication with the wireless terminal, and a server connected to the base stations via a network,

• each of the base stations comprising:
• a first wireless communication device configured to perform wireless communication with the wireless terminal;
• and
• a transmission power control device configure to switch the first wireless communication device between a first mode in which the first wireless communication device transmits data at normal power and a second mode in which the first wireless communication device transmits data at power smaller than the normal power, and
• the wireless terminal comprising:
• a second wireless communication device configured to perform wireless communication with the base stations;
• a position data transmission device configured to transmit a signal containing position data to the server via the second wireless communication device and the first wireless communication device, and
• the server comprising:
• a management device configured to manage position data about the base stations;
• a storage device configured to store position data transmitted from the base stations;
• a base station designating device configured to designate one of the base stations in accordance with the position data stored in the storage device and the position data managed in the management device;
• a transmission device configured to transmit a signal to the wireless terminal via the base station designated by the base station designating device;
• and
• a decision device configured to determine that the base station designated has a problem when no signal is received from the wireless terminal in response to the signal the wireless station has transmitted in the second mode.