Patent attributes
A system for reducing or eliminating PIM interference in an RX signal is disclosed. The system is configured to use RX and TX signals to generate a frequency-shifted output that includes a RX carrier signal component of the RX signal, as well as first and second TX carrier signal components of the TX signal, positioned in a frequency spectrum so that a frequency spacing between the first and the second TX carrier signal components and a frequency spacing between the RX carrier signal component and a closest one of the first and the TX second carrier signal components is smaller than a frequency spacing between the first and the second TX carrier signal components in the TX signal. The system may then use the frequency-shifted output to generate an estimate of a PIM signal component in the RX signal.
