Wireless communication system, power amplifier and method of determining power amplifier performance

A wireless communication system comprising:

• a reconfigurable power amplifier (PA) configured to receive a radio frequency (RF) input signal and to produce a PA output signal, the PA output signal being an amplified version of the RF input signal, the reconfigurable PA including a plurality of independently controllable amplifying elements having associated therewith a plurality of internal control parameters;
• a sensor subsystem configured to perform asynchronous statistical sampling of the RF input signal and of the PA output signal and to generate a sensor subsystem output;
• and
• a controller, in communication with the sensor subsystem, configured to obtain the sensor subsystem output and to infer performance of the PA based on the sensor subsystem output,
• wherein the controller is in communication with the plurality of independently controllable amplifying elements and configured to control one or more of the plurality of internal control parameters such that the PA is an internally reconfigurable PA.

A processor-implemented method for processing instructions associated with one or more data transfers, the method comprising:

• receiving, at a power amplifier (PA), a radio frequency (RF) input signal;
• producing, at the PA, a PA output signal, the PA output signal being an amplified version of the RF input signal;
• performing, via a sensor subsystem, asynchronous statistical sampling of the RF input signal and of the PA output signal and to generate a sensor subsystem output;
• and
• obtaining, via a controller comprising a function estimator, the sensor subsystem output and inferring performance of the PA based on the sensor subsystem output, the controller being in communication with the sensor subsystem.

A wireless communication system comprising:

• a power amplifier (PA) configured to receive a radio frequency (RF) input signal and to produce a PA output signal, the PA output signal being an amplified version of the RF input signal;
• a sensor subsystem configured to perform sampling of the RF input signal and of the PA output signal and to generate a sensor subsystem output;
• and
• a controller comprising a function estimator, the controller in communication with the sensor subsystem and comprising one or more integrated machine learning (ML) elements and configured to obtain the sensor subsystem output and to infer performance metrics associated with the PA based on the obtained sensor subsystem output the controller.