Method and device for mitigating interference due to a wireless charging signal

A frequency manager for a mobile device comprising a radio receiver for receiving a radio signal, a power receiving unit (PRU) for receiving a wireless charging signal for charging the mobile device, and a wireless broadcast receiver for receiving a harmonic of the wireless charging signal during charging of the mobile device, the frequency manager comprising:

• a scanner configured to scan for a frequency of the harmonic;
• a detector configured to detect a fundamental frequency of the wireless charging signal based on the scanned frequency of the harmonic;
• and
• an interface to a mitigation module, wherein the interface is configured to transmit the detected fundamental frequency to the mitigation module for mitigating a harmonic content of the wireless charging signal in the received radio signal based on the detected fundamental frequency.

A method for mitigating a wireless charging signal interference on a radio signal received by a radio receiver of a mobile device, the method comprising:

• receiving a harmonic of the wireless charging signal by a wireless broadcast receiver of the mobile device during charging of the mobile device;
• scanning for a frequency of the harmonic;
• detecting a fundamental frequency of the wireless charging signal based on the scanned frequency of the harmonic;
• and
• mitigating the wireless charging signal interference in the received radio signal based on the detected fundamental frequency of the wireless charging signal.