A receiver architecture for canceling blocking signals in the receive path
includes a low noise amplifier for receiving and amplifying an inbound RF
signal to produce an amplified inbound signal, in which the inbound RF
signal includes a modulated RF signal and a blocking signal, and a
cancellation module for substantially canceling the blocking signal from
the amplified inbound RF signal and substantially passing the modulated
RF signal. The cancellation module cancels the blocking signal by
generating an injection signal representative of the blocking signal,
combining the blocking signal with the injection signal to produce an
error signal, updating the injection signal based on the error signal and
using the injection signal to cancel the blocking signal from the
amplified inbound RF signal.