Apparatus and method for controlling wireless transmission

A method for controlling a transmitter of an apparatus which provides an output signal by upconverting and amplifying an input signal, the method comprising:

• accessing first calibration data representing a linear gain and a saturation power of a reference transmitter according to operating conditions of the reference transmitter;
• estimating a saturation power and a linear gain of the transmitter of the apparatus based on operating conditions of the transmitter of the apparatus and the first calibration data of the reference transmitter;
• calculating a saturation power difference between the estimated saturation power and a target saturation power;
• calculating a linear gain difference between the estimated linear gain and a target linear gain;
• and
• generating at least one control signal to control an operation of the transmitter of the apparatus based on the calculated saturation power difference and the calculated linear gain difference.

A user equipment (UE) that controls wireless transmissions, comprising:

• a transmitter including at least one RF circuit;
• a data processor coupled to the transmitter and includes circuitry that generates an input signal to the transmitter;
• a memory configured to store calibration data representing a linear gain of a reference device and a saturation power at which the linear gain decreases from a maximum under one or more operating conditions;
• a controller coupled to the transmitter, the controller generates a control signal output to the transmitter, in which the control signal adjusts operation of the transmitter based on one or more operating conditions of the transmitter and a calibration data of the reference device;
• and
• wherein the controller generates at least one control signal to control an operation of the transmitter based on a saturation power difference between an estimated saturation power and a target saturation power and a linear gain difference between an estimated linear gain and a target linear gain.