| 摘要 |
<p>Arriving wave direction inferring sections (107, 108) infer the arrival directions of the signals from communication terminals. A judging circuit (110) detects communication terminals radiating waves the arrival directions of which are near to each other according to the arrival direction information. A transmission weight creating circuit (111) creates a transmission directivity common to the communication terminals detected by the judging circuit (110) and transmits a signal by radio to the communication terminals (151, 152) radiating waves the arrival directions of which are near to each other by using the common transmission directivity.</p> |
