公开(公告)号：US10673661B1

公开(公告)日：2020-06-02

申请号：US16367601

申请日：2019-03-28

Applicant: Intel Corporation

Inventor： Franz Kuttner ,  Alexander Belitzer ,  Florian Mrugalla ,  Navatouch Deeying

IPC: H04L25/03 ,  H04B1/10

Abstract: Systems, methods, and circuitries enable selected signal components to be isolated in a feedback transmit signal that includes multiple signal components. In one example, a signal component cancellation system for a feedback receiver includes a transmit chain configured to transmit a transmit signal having at least two signal components with offset center frequencies. The system includes measurement circuitry configured to measure a received signal that results from feedback of the transmit signal and cancellation circuitry configured to cancel a selected signal component from the transmit signal to generate a cancellation signal. The system further includes subtraction circuitry configured to combine the cancellation signal with the measured received signal to generate a component signal corresponding to a contribution of the selected signal component to the received signal and provide the component signal to the feedback receiver.