Rf circuit for predistortion and method of operating the same
AssigneeSamsung Electronics Co., Ltd.
InventorsSumin Kim, Hongmin Choi, Min-Sik Kim, Changhyun Baek, Hyung Sun Lim, Joonhoi Hur
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Abstract
A radio-frequency (RF) circuit including: a multi-tone generation circuit configured to generate a multi-tone signal including a plurality of tones; a predistortion circuit configured to predistort the multi-tone signal or a modulation signal and output a predistortion signal; a power amplifier configured to amplify the predistortion signal and output an output signal; and a predistortion modeling circuit configured to model a predistortion model corresponding to the predistortion circuit based on the predistortion signal corresponding to the multi-tone signal and the output signal.
Claims20
A radio-frequency (RF) circuit comprising:
- a multi-tone generation circuit configured to generate a multi-tone signal comprising a plurality of tones, wherein the multi-tone generation circuit is configured to generate the multi-tone signal having a uniform probability density function;
- a predistortion circuit configured to predistort the multi-tone signal or a modulation signal and output a predistortion signal;
- a power amplifier configured to amplify the predistortion signal and output an output signal;
- and
- a predistortion modeling circuit configured to model a predistortion model corresponding to the predistortion circuit based on the predistortion signal corresponding to the multi-tone signal and the output signal.
A method of operating a radio-frequency (RF) circuit, the method comprising:
- generating a multi-tone signal having a uniform probability density function to generate the multi-tone signal comprising a plurality of tones;
- distorting the multi-tone signal and outputting a predistortion signal;
- amplifying the predistortion signal and outputting an output signal;
- and
- modeling a predistortion model based on the predistortion signal corresponding to the multi-tone signal and the output signal.
An electronic device comprising:
- a memory configured to store at least one instruction;
- and
- at least one processor configured to execute the at least one instruction, wherein the at least one processor executes the at least one instruction to:
- generate a multi-tone signal having a uniform probability density function to generate the multi-tone signal comprising a plurality of tones;
- distort the multi-tone signal or a modulation signal and output a prediction signal;
- amplify the predistortion signal and output an output signal;
- and
- model a predistortion model based on the predistortion signal corresponding to the multi-tone signal and the output signal.
Dependencies are inferred from the claim text.