Digital pre-distortion coefficient estimating device and operating method thereof

An electronic device, comprising:

• a communication circuit comprising:
• an adaptive digital pre-distortion (DPD) device comprising a legacy DPD device and a neural network device;
• and
• a power amplifier configured to amplify an output of the adaptive DPD device,
• wherein the neural network device is configured to:
• receive a plurality of system parameters as inputs;
• and
• generate coefficients of the legacy DPD device as outputs;
• a processor configured to:
• determine an operation mode of the neural network device;
• and
• provide the plurality of system parameters to the neural network device;
• and
• a memory storing weights of the neural network device.

An operating method of an electronic device, the operating method comprising:

• receiving a plurality of system parameters;
• generating, using a neural network, coefficients of a legacy digital pre-distortion (DPD) device of the electronic device, based on the plurality of system parameters;
• applying the coefficients to the legacy DPD device;
• receiving, using the legacy DPD device, modulated transmission data;
• performing, using the legacy DPD device, pre-distortion on the modulated transmission data;
• and
• amplifying a signal on which the pre-distortion is performed.