| 摘要 |
An integrated adaptive feedback prediction canceller, a method thereof and a time division duplex wireless relay device using the same are provided to remove feedback signal components from a signal to be relayed, perfectly by sharing one adaptation feedback prediction canceller in the forward/reverse directions, thereby improving the quality of a service. A donor antenna(300), a service antenna(311) and a donor band pass filter(301) transmit/receive forward/reverse relay signals, and then filter the transmitted/received signals. A donor switching unit(302), an input switching unit(303), an output switch unit(308) and a service switching unit(309) switch the forward/reverse relay signals according to the control of a synchronous acquisition part. A down converter(304) down-converts the forward/reverse relay signals from the input switching unit. One integrated adaptive feedback prediction canceller(306) removes the feedback signal components existing in the forward/reverse relay signals from the down converter, and then controls the gain of the forward/reverse relay signals.
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