Abstract: An RF transceiver includes an RF transmitter coupled to a broadcast antenna, an RF receiver coupled to a receiving antenna, and a communication channel to provide an RF reference signal from the transmitter to the receiver to assist in canceling a transmitter-induced interference signal at the receiver. A digital processor of the receiver is configured for adaptive filtering the RF reference signal in the frequency domain to estimate the spectrum of the interference signal, and estimating a spectrum of a remotely-transmitted signal based on the estimated interference spectrum and a spectrum of a received signal from the receiving antenna. The filtering includes estimating frequency-domain filter weights based, at least, on spectra of the received and reference signals, and de-noising of the estimated filter weights. The interference cancellation may be iteratively improved using a re-modulated feedback from a demodulator and/or a decoder in the signal processing chain of the receiver.

Abstract: A communication apparatus for a transmitter tower station (TTS) of a broadcast system includes a first transmitter (Tx) antenna to transmit a broadcast signal to a plurality of customer receivers, and one or more second, directional Tx antennas to transmit a first ITC signal to another TTS. A Tx signal processor is coupled to the first Tx antenna and the one or more second Tx antennas to perform a MIMO encoding of the first ITC signal to transmit with, at least, the one or more second Tx antennas. At least two receiver (Rx) antennas and an Rx signal processor coupled thereto are provided to receive from another TTS, and to decode, a MIMO-encoded second ITC signal to extract ITC information therefrom.