Patent ID: 7733813
Filing Date: 2010-06-08
Classification: H04B,H04L

Abstract:
1. A method for canceling interference between a transmission signal and a received signal in a full-duplex relay station (RS) in a communication system, comprising: converting a radio frequency/intermediate frequency (RF/IF) signal received from a first node through an antenna to a baseband received signal; demodulating and decoding the baseband received signal; generating a baseband transmission signal by encoding and modulating the demodulated and decoded data; calculating a baseband interference estimate using the baseband received signal and the baseband transmission signal; eliminating a baseband interference from the baseband received signal using the baseband interference estimate; converting the baseband transmission signal to an RF/IF transmission signal to be transmitted to a second node; calculating an RF/IF interference estimate by converting amplitude of the RF/IF transmission signal and delaying the RF/IF transmission signal with the converted amplitude by a predetermined time period; and eliminating an RF/IF interference from the RF/IF received signal according to the RF/IF interference estimate.