Wireless communication system, terminal device, and base station device

A terminal device in which communication using a beam-forming technique is performed with a plurality of beams from a base station device, the terminal device comprising:

• a level detector to measure a received power value of a communication signal in each of the plurality of beams received from the base station device;
• a controller to compare the received power value measured at the level detector with a terminal allowable power value of the terminal device, and generate a specific signal for selecting a beam from the plurality of beams on a basis of a result of the comparison;
• a modulator to modulate the specific signal generated by the controller;
• and
• a transmitting antenna to emit, as a beam, the specific signal modulated at the modulator.

A base station device in which communication with a terminal device is performed using a beam-forming technique, the base station device comprising:

• a beam antenna to form a beam specified on a basis of a beam select signal, from among a plurality of beams necessary for covering an entire service area, and transmit a communication signal with the specified beam in a time-division manner,
• a receiving antenna to receive a modulated specific signal transmitted from the terminal device, wherein the terminal device compares a received power value of a communication signal in each of the plurality of beams received by the terminal device with a terminal allowable power value of the terminal device, and generates the specific signal for selecting a beam from the plurality of beams on a basis of a result of the comparison;
• a demodulator to demodulate the specific signal received by the receiving antenna;
• and
• a beam controller to receive the demodulated specific signal from the demodulator and output the beam select signal based on the demodulated specific signal to the beam antenna.