Patent ID: 8570933
Filing Date: 2013-10-29
Classification: H04B

Abstract:
1. A method for self-interference suppression in a relay for wireless communication, wherein said relay is a part of a communication channel between a transmitter and a receiver in a wireless communication system, said relay being arranged for receiving a signal r(n) transmitted from said transmitter, and transmitting a self-interference suppressed transmit signal x r (n) to said receiver, said communication channel having a transmit channel, defined by a transmit channel matrix (H 1 ) between said transmitter and said relay, a receive channel, defined by a receive channel matrix (H 2 ) between said relay and said receiver, and a self-interference channel between an relay output and a relay input of said relay, the self-interference channel being defined by a self-interference channel matrix (H 0 ), the method comprising: receiving at the relay input of said relay a receive signal r(n) transmitted from said transmitter over said transmit channel; determining a receive suppression filter matrix W determining a transmit suppression filter matrix W determining a self-interference suppressed transmit signal x transmitting said self-interference suppressed transmit signal x