COMMUNICATION TERMINAL, CONTROLLER, COMMUNICATION METHOD, AND PROGRAM

• Main Authors: TEZUKA TAKASHI, KANEKO YUTAKA
• Format: Patent
• Language: English; Japanese
• Published: 01.03.2018
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION

PROBLEM TO BE SOLVED: To protect a receiving circuit by discriminating situation where a high power radio signal is received in a more preferable mode.SOLUTION: A communication terminal includes a communication unit for transmitting and receiving radio waves, an altitude information acquisition unit for acquiring altitude information indicating an altitude of own terminal, an altitude difference calculation unit for acquiring altitude information of another terminal different from the own terminal, and calculating an altitude difference between the own terminal and another terminal, based on the altitude information of the own terminal and another terminal, a power detector for detecting a power value of reception signal based on reception results of the radio waves, a position determination unit for determining whether or not the own terminal is located in the vicinity of a base station, a high place determination unit for determining that the own terminal is located at a high place, if both altitude difference and power value exceed thresholds, and a control unit for controlling a gain of the reception signal when determination is made that the own terminal is located at the high place.SELECTED DRAWING: Figure 2 【課題】高電力の無線信号が受信されるような状況をより好適な態様で判別して受信回路を保護する。【解決手段】電波を送受信する通信部と、自端末の高度を示す高度情報を取得する高度情報取得部と、前記自端末とは異なる他端末から当該他端末の前記高度情報を取得し、前記自端末及び前記他端末それぞれの前記高度情報に基づき、当該自端末と当該他端末との間の高度差を算出する高度差算出部と、前記電波の受信結果に基づく受信信号の電力値を検出する電力検出部と、前記自端末が基地局の近傍に位置するか否かを判定する位置判定部と、前記高度差及び前記電力値の双方が閾値以上の場合に、前記自端末が高所にあると判定する高所判定部と、前記自端末が高所にあると判定された場合に、前記受信信号の受信利得を制御する制御部と、を備える、通信端末。【選択図】図２