| 摘要 |
<p>PURPOSE: A transmitting and receiving device of a base station with an array antenna is provided to maintain quality of a telephonic communication regardless to the change of an environment of a channel by actively forming a beam. CONSTITUTION: A transmitting and receiving device of a base station with an array antenna comprises a beam former including a direction vector estimator(310), a direction vector decision unit(320), a beam forming unit(330) and a storage(340). The direction vector estimator estimates a first direction vector by a receiving signal through multiple antennas. The direction vector decision unit calculates an internal area of the first direction vector and a second direction vector, and determines a direction vector to form a beam. The second direction vector is determined by a previous direction vector determination period.</p> |
