Base station, communication terminal, and communication method for base station

A communication terminal that communicates with a base station, the communication terminal comprising

• an antenna that transmits and receives radio waves and
• at least one processor,
• the at least one processor being configured to execute
• a reception process of receiving, via the antenna, any of a plurality of searching radio beams that have been transmitted from the base station and that are oriented in directions which are different from each other,
• an extraction process of extracting, from a searching radio beam received in the reception process, direction identification information that identifies a direction of the base station,
• a transmission process of transmitting a radio beam toward the base station based on the direction identification information that has been extracted in the extraction process, and
• a communication process of communicating with the base station with use of the radio beam that has been transmitted in the transmission process, wherein
• the plurality of searching radio beams include a second set of searching radio beams that
• have identical frequencies and that are separate from each other.

A communication method for a base station, the method comprising:

• a transmission process of transmitting, from an antenna, a plurality of searching radio beams that are oriented in directions which are different from each other;
• a reception process of receiving radio waves transmitted from a communication terminal in accordance with the plurality of searching radio beams transmitted in the transmission process;
• and
• a communication process of communicating, with use of the communication radio beam, with the communication terminal that transmitted the radio waves which were received in the reception process, wherein
• the plurality of searching radio beams include a second set of searching radio beams that have identical frequencies and that are separate from each other.