Interference cancellation circuit and operating method thereof, and wireless communication device

A method of operating an interference cancellation circuit, the method comprising:

• generating an interference model based on a transmission signal;
• generating a control signal for controlling at least one parameter of an adaptive algorithm in an adaptive filter, based on transmission signal information received from a transmission filter;
• generating an interference estimation signal by estimating coefficients for the interference model, based on the adaptive algorithm updated through the control signal;
• and
• filtering out the interference estimation signal from a received signal.

A wireless communication device comprising:

• a transmission filter electrically connected to a first antenna;
• a reception filter electrically connected to a second antenna;
• and
• an interference cancellation circuit configured to generate an interference estimation signal based on an adaptive algorithm, filter out the interference estimation signal from a received signal, and control at least one parameter of the adaptive algorithm based on transmission signal information received from the transmission filter.