Patent ID: 9231530
Filing Date: 2016-01-05
CPC Classification: H03F,H04B,H04W

Claim Text:
1. A system for calibrating a power amplifier, comprising: a memory for storing reference baseband stream data; a digital pre-distorter (DPD), connected to the memory, wherein the DPD includes: a digital-to-analog converter (DAC) connected to the pre-distorter module for receiving the pre-distorted shaped reference baseband stream data and generating a pre-distorted shaped reference baseband signal; a radio frequency (RF) mixer, connected to the DAC for receiving the pre-distorted shaped reference baseband signal and generating an RF shaped reference baseband signal, wherein the power amplifier is connected to the RF mixer for receiving the RF shaped reference baseband signal and generating an amplified RF shaped reference baseband signal, and wherein the RF mixer receives the amplified RF shaped reference baseband signal and generates an amplified shaped reference baseband signal; an analog-to-digital converter (ADC) connected to the RF mixer for receiving the amplified shaped reference baseband signal and generating amplified shaped reference baseband stream data; and a processor connected to the ADC and the memory for receiving the amplified shaped and pre-distorted shaped reference baseband stream data, respectively, generating comparison data based on the amplified shaped and pre-distorted shaped reference baseband stream data, and adjusting a plurality of pre-distortion parameters based on the comparison data, thereby calibrating the power amplifier.