| 主权项 |
1. A control method for controlling a direction of a radiation beam of a wireless transmission device for a mobile station considerably moving around the wireless transmission device, comprising:
updating and storing movement data, which include a position and a moving direction of the mobile station, every time the mobile station moves by receiving sensor data from the mobile station; calculating a moving angle and a moving velocity of the mobile station at a current position using the stored movement data, including
ascertaining, using the stored movement data, first, second and third positions that are immediately prior to the current position, the mobile station sequentially moving through the third, second and first positions to reach the current position,calculating the moving angle using a moving angle of the mobile station at the first position and a difference between moving angles of the mobile station at the second and third positions, andcalculating the moving velocity using a moving velocity of the mobile station at the first position and a difference between moving velocities of the mobile station at the second and third positions; determining a sector zone of emission of the radiation beam in accordance with the calculated moving angle and moving velocity; and controlling the direction of the radiation beam using the determined sector zone. |
