Patent ID: 6385435
Filing Date: 2002-05-07
Classification: H04B

Abstract:
A repeater, comprising:a receiving antenna which receives a desired signal at a given frequency; a transmitting antenna which transmits an output signal at said given frequency, input signals to the receiving antenna including said desired signal and a coupled interference signal consisting of said output signal delayed in time; first means for generating a pilot signal; second means for combining said pilot signal with said output signal; third means for detecting quadrature components of a portion of said pilot signal included in said coupled interference signal; fourth means for sampling said output signal; fifth means for adjusting an amplitude and a phase of a sample of said output signal based on the properties of the said portion of the pilot signal included in said coupled interference signal; sixth means for delaying the adjusted sample of said output signal; and seventh means for combining said adjusted sample of said output signal with said input signal to cancel said coupled interference signal.