High-frequency signal transmission-reception circuit

A high-frequency signal transmission-reception circuit, further comprising:

• a high-frequency circuit configured to perform transmission and reception of high-frequency signals with one or more antenna ports, the high-frequency circuit comprising:
• a transmission circuit configured to transmit a high-frequency signal;
• a reception circuit configured to receive a high-frequency signal;
• a multiplexer configured to separate a reception path and a transmission path for the high-frequency signals;
• a filter circuit in the reception path, wherein the filter circuit is configured to selectively switch between a first frequency response and a second frequency response in accordance with a jamming wave for a high-frequency signal, the second frequency response being different than the first frequency response;
• and
• a jamming wave detection circuit in a stage preceding the filter circuit, the jamming wave detection circuit being configured to detect the jamming wave superimposed in the reception path,
• wherein the transmission circuit comprises a sub-controller configured to control a transmission operation in accordance with a control command from at least a main controller,
• wherein the reception circuit comprises a sub-controller configured to control a reception operation in accordance with the control command from at least the main controller, and in accordance with the jamming wave detection circuit, and
• wherein the sub-controller of the reception circuit is configured to:
• perform control so that the filter circuit has the first frequency response when no jamming wave is detected by the jamming wave detection circuit, and
• perform control so that the filter circuit has the second frequency response when the jamming wave is detected by the jamming wave detection circuit.