Digital pre-distortion and assistance information signaling

A method for wireless communication, the method comprising:

• obtaining an input signal at a first digital pre-distortion (DPD) circuit;
• selecting, at the first DPD circuit, one or more frequencies in which to reduce distortion in the input signal;
• applying a first DPD to the input signal to reduce distortion at the one or more frequencies and to generate a first resulting signal;
• outputting the first resulting signal to a second DPD circuit;
• apply a second DPD to the first resulting signal to generate a second resulting signal;
• outputting the second resulting signal to a power amplifier (PA);
• amplifying the second resulting signal to generate an amplified second resulting signal;
• and
• transmitting the amplified second resulting signal.

A non-transitory computer readable medium comprising computer-executable instructions that, when executed by a processor of an apparatus, cause the apparatus to perform a method of wireless communications, the method comprising:

• obtaining an input signal at a first digital pre-distortion (DPD) circuit;
• applying a first DPD to the input signal to generate a first resulting signal,
• wherein a power scaling is applied to the input signal such that a power level of the first resulting signal is equal to a power level of the input signal;
• outputting the first resulting signal to a second DPD circuit;
• apply a second DPD to the first resulting signal to generate a second resulting signal;
• outputting the second resulting signal to a power amplifier (PA);
• amplifying the second resulting signal to generate an amplified second resulting signal;
• and
• transmitting the amplified second resulting signal.