Patent ID: 8385820

Claim:
A transmitter configured to transmit an output signal to a forwarding node that has an input for receiving that output signal, wherein the transmitter comprises: a receiver for receiving from the forwarding node filter adaptation information that relates to output-to-input feedback signal interference at the forwarding node, said interference comprising interference at the input of the forwarding node caused by a signal transmitted from an output of the forwarding node; an adaptive filter configured to receive an input signal, to receive the filter adaptation information, and to reduce the output-to-input feedback signal interference at the forwarding node by using the filter adaptation information to produce a filtered version of the input signal; a signal combiner configured to combine the input signal and the filtered version of the input signal to produce the output signal, the output signal thereby encompassing the input signal and the filtered version of the input signal; and one or more transmit antennas for transmitting the output signal to the forwarding node.