| 摘要 |
<p>Equipped with an RF-digital conversion unit (801) that obtains a digital IQ signal by converting an input RF signal into a digital signal after directly converting the RF signal into an I and Q baseband signal; digital signal processing units (802, 804) that separate the digital IQ signal, which was obtained in a donor unit by means of the aforementioned conversion, into the carrier unit of each antenna, respectively perform gain adjustment and/or delay adjustment on the separated digital signal, and re-synthesize the digital IQ signal after adjustment; digital IQ signal transmission/reception units (803, 806) that transmit and receive the digital IQ signal between the donor unit and a service unit; and a digital-RF conversion unit (805) that converts the input digital IQ signal into an analog signal, and directly converts the I and Q baseband signal that was obtained into an RF signal.</p> |
