| 摘要 |
<p>A mobile station device capable of acquiring direction information by means of a simple structure and a radio communication system which accommodates such a mobile station device are disclosed. A direction-of-arrival acquiring section (203) acquires the direction of arrival of a direction designation signal received from a reference station or another terminal station by calculation. A transmission direction generating section (204) determines the transmission direction opposite to the acquired direction of arrival. A reference direction detection section (207) detects the transmission direction determined by the transmission direction generating section (204) as a reference direction. A direction designating signal generating section (205) generates a direction designating signal for radiating a radio wave having a directivity of the transmission direction determined by the transmission direction generating section (204).</p> |
