Predistortion Circuit, Method For Generating A Predistorted Baseband Signal, Control Circuit For A Predistortion Circuit, Method To Determine Parameters For A Predistortion Circuit, And Apparatus And Method For Predistorting A Baseband Signal
AssigneeApple Inc.
InventorsAndreas Menkhoff, Gunther Kraut, Andreas Langer
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Abstract
A predistortion circuit for a wireless transmitter includes a signal input configured to receive a baseband signal. Further, the predistortion circuit includes a predistorter configured to generate a predistorted baseband signal using the baseband signal and a select of one of a first predistorter configuration and a second predistorter configuration.
Claims23
A predistortion circuit for a wireless transmitter, the predistortion circuit comprising:
- a signal input configured to receive a baseband signal;
- and
- a predistorter configured to generate a predistorted baseband signal using the baseband signal and a select of one of a first predistorter configuration and a second predistorter configuration.
A predistortion circuit for a wireless transmitter, comprising:
- a signal input configured to receive a baseband signal;
- and
- a predistorter configured to generate a predistorted baseband signal using:
- a first sub-circuit to calculate a first portion of a predistorted baseband signal at a first rate;
- and
- a second sub-circuit to calculate a first portion of a predistorted baseband signal at a second rate.
A method for generating a predistorted baseband signal for a wireless transmitter, the method comprising:
- selecting one of a first predistorter configuration or a second predistorter configuration;
- and
- generating the predistorted baseband signal using a baseband signal and the select predistorter configuration.
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21-22. (canceled)
24-25. (canceled)
Dependencies are inferred from the claim text.