US 12,476,661 B2
Parameter estimation for linearization of nonlinear component
Björn Jelonnek, Ulm (DE); Andre Baumgart, Kraiburg (DE); and Michael Weber, Neu Ulm (DE)
Assigned to NOKIA TECHNOLOGIES OY, Espoo (FI)
Appl. No. 17/917,397
Filed by NOKIA TECHNOLOGIES OY, Espoo (FI)
PCT Filed Apr. 7, 2020, PCT No. PCT/EP2020/059904
§ 371(c)(1), (2) Date Oct. 6, 2022,
PCT Pub. No. WO2021/204366, PCT Pub. Date Oct. 14, 2021.
Prior Publication US 2023/0155614 A1, May 18, 2023
Int. Cl. H04B 1/04 (2006.01); H03F 1/32 (2006.01); H03F 3/24 (2006.01)
CPC H04B 1/0475 (2013.01) [H03F 1/32 (2013.01); H03F 3/245 (2013.01); H03F 2200/451 (2013.01); H04B 2001/0433 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An apparatus, comprising:
at least one processor; and
at least one memory including computer program code, wherein the at least one memory and the computer program code are configured, with the at least one processor, to cause the apparatus to:
select a mathematical model associated with a nonlinear component;
determine an error signal associated with the nonlinear component, wherein the error signal indicates a difference between a first signal and a second signal;
estimate one or more parameters that minimize the error signal based on the mathematical model, wherein a dither and fixed-point arithmetic are used for estimating the one or more parameters;
estimate and/or linearize the nonlinear component based on the estimated one or more parameters.