The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 22, 2025

Filed:

Nov. 17, 2021
Applicant:

Nokia Solutions and Networks Oy, Espoo, FI;

Inventors:

Tian He, Plano, TX (US);

Chad Young, Carrollton, TX (US);

Shavantha Kularatna, Flower Mound, TX (US);

Peter Novak, Keller, TX (US);

Jacob Edward Longwell, Northlake, TX (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 25/49 (2006.01); H03F 1/32 (2006.01); H03F 3/21 (2006.01);
U.S. Cl.
CPC ...
H03F 1/3258 (2013.01); H03F 3/21 (2013.01);
Abstract

This specification relates to digital pre-distortion of signals before power amplification during the transmission of a signal. A method comprising: receiving an input signal 1and 2subband signals associated with 1and 2centre frequencies; applying a pre-distortion to the input signal to generate a pre-distorted signal, the pre-distortion applying an inverse to a power amplification model associated with a power amplifier; and outputting the pre-distorted signal for power amplification. The power amplification model or the inverse to the power amplification model comprises a first plurality of terms and a second plurality of terms. Each of the 1and 2plurality of terms comprising a product of a complex coefficient, a power factor, and other factors depending on if it is 1or 2plurality of terms.


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