| 摘要 |
<p>A point-to-multipoint wireless access system includes a wireless base station (11) and a plurality of wireless subscriber's terminals (12), wherein the down-link channels from the base station (11) to the respective subscriber's terminals (12) use a higher frequency band, and the up-link channels from the respective subscriber's terminals (12) to the base station (11) use a lower frequency band which is exempt of license. <IMAGE></p> |
