| 摘要 |
<p>A base station (101) receives a communication signal subjected to spectrum spreading with a spreading code unique to the signal and transmitted from a mobile station unit (110), and CAL signals each subjected to spectrum spreading with a spreading code unique to the CAL signal, transmitted from a CAL radio signal generator (120) for a predetermined time for each unit frame, and multiplexed in the same frequency band. A/D convering/despreading sections (106, 107) extract the communication signal and the CAL signal from the received signal. A calibrating section (108) performs calibration using the CAL signals parallel with communication using the communication signal. An array synthesizing/signal processing section (109) demodulates the communication signal using the calibration results.</p> |
