Full duplex transceiver with impedance sensing

A method of controlling a full duplex transceiver of a mobile wireless communication device, the method comprising:

• transmitting a transmit signal from a power amplifier of transmit circuitry of the full duplex transceiver, via a duplexer of the full duplex transceiver, to an antenna of the full duplex transceiver;
• receiving, via the antenna and the duplexer, a receive signal by receive circuitry of the full duplex transceiver;
• obtaining at least three voltage measurements from respective points between the power amplifier and the antenna;
• and
• providing at least one control signal, within the full duplex transceiver, based on the at least three voltage measurements.

A full duplex transceiver comprising:

• means for transmitting a transmit signal via a power amplifier and a duplexer to an antenna of the full duplex transceiver;
• means for receiving, via the antenna and the duplexer, a receive signal;
• means for obtaining at least three voltage measurements from respective points between the power amplifier and the antenna;
• and
• means for providing at least one control signal, within the full duplex transceiver, based on the at least three voltage measurements.

A non-transitory, processor-readable storage medium comprising processor-readable instructions to cause at least one processor, of a full duplex transceiver, to:

• transmit a transmit signal via a power amplifier and a duplexer to an antenna of the full duplex transceiver;
• receive, via the antenna and the duplexer, a receive signal;
• obtain at least three voltage measurements from respective points between the power amplifier and the antenna;
• and
• provide at least one control signal, within the full duplex transceiver, based on the at least three voltage measurements.