Title:
METHOD AND SYSTEM OF LINEARIZATION FOR NON-LINEAR SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/110114
Kind Code:
A1
Abstract:
The present disclosure provides a method of linearization for a non-linear system, comprising: a group of steps comprising: inputting (302) an input signal to the non-linear system; obtaining (304) an output signal from the non-linear system in response to the input signal being input to the non-linear system; obtaining (306) a desired signal for the non-linear system; comparing (308) the output signal with the desired signal, to determine (310) whether the input signal is a target signal for the non-linear system to achieve a desired performance; and in response to determining (310) that the input signal is not the target signal for the non-linear system to achieve the desired performance, generating (316) an updated signal in frequency domain by applying a coefficient to eliminate a difference between the output signal and the desired signal, for updating the input signal to the non-linear system. The present disclosure also provides a corresponding device, computer programs, and computer-readable storage.
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Inventors:
CAO HAIYING (CN)
CHANI JESSICA (SE)
LANDIN PER (SE)
AMIN SHOAIB (SE)
HOU RUI (SE)
HAMID MOHAMED (SE)
CHANI JESSICA (SE)
LANDIN PER (SE)
AMIN SHOAIB (SE)
HOU RUI (SE)
HAMID MOHAMED (SE)
Application Number:
PCT/CN2020/133781
Publication Date:
June 10, 2021
Filing Date:
December 04, 2020
Export Citation:
Assignee:
ERICSSON TELEFON AB L M (SE)
CAO HAIYING (CN)
CAO HAIYING (CN)
International Classes:
H03F1/32; H03F3/189; H03F3/24
Foreign References:
| US10404296B2 | 2019-09-03 |
Other References:
MAARTEN SCHOUKENS ET AL: "Obtaining the Pre-Inverse of a Power Amplifier using Iterative Learning Control", ARXIV.ORG, CORNELL UNIVERSITY LIBRARY, 201 OLIN LIBRARY CORNELL UNIVERSITY ITHACA, NY 14853, 28 June 2016 (2016-06-28), XP081359830, DOI: 10.1109/TMTT.2017.2694822
CHANI-CAHUANA JESSICA ET AL: "Iterative Learning Control for RF Power Amplifier Linearization", IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, PLENUM, USA, vol. 64, no. 9, 1 September 2016 (2016-09-01), pages 2778 - 2789, XP011621509, ISSN: 0018-9480, [retrieved on 20160901], DOI: 10.1109/TMTT.2016.2588483
S. A. BASSAM: "D Digital Predistortion (2-D-DPD) Architecture for Concurrent Dual-Band Transmitters", IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, vol. 59, October 2011 (2011-10-01), XP055352402, DOI: 10.1109/TMTT.2011.2163802
D. R. MORGAN: "A Generalized Memory Polynomial Model for Digital Predistortion of RF Power Amplifiers", IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, vol. 54, October 2006 (2006-10-01), XP055187301, DOI: 10.1109/TSP.2006.879264
4J. CHANI-CAHUANA: "Iterative Learning Control for RF Power Amplifier Linearization", IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, vol. 64, September 2016 (2016-09-01), XP011621509, DOI: 10.1109/TMTT.2016.2588483
CHANI-CAHUANA JESSICA ET AL: "Iterative Learning Control for RF Power Amplifier Linearization", IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, PLENUM, USA, vol. 64, no. 9, 1 September 2016 (2016-09-01), pages 2778 - 2789, XP011621509, ISSN: 0018-9480, [retrieved on 20160901], DOI: 10.1109/TMTT.2016.2588483
S. A. BASSAM: "D Digital Predistortion (2-D-DPD) Architecture for Concurrent Dual-Band Transmitters", IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, vol. 59, October 2011 (2011-10-01), XP055352402, DOI: 10.1109/TMTT.2011.2163802
D. R. MORGAN: "A Generalized Memory Polynomial Model for Digital Predistortion of RF Power Amplifiers", IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, vol. 54, October 2006 (2006-10-01), XP055187301, DOI: 10.1109/TSP.2006.879264
4J. CHANI-CAHUANA: "Iterative Learning Control for RF Power Amplifier Linearization", IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, vol. 64, September 2016 (2016-09-01), XP011621509, DOI: 10.1109/TMTT.2016.2588483
Attorney, Agent or Firm:
CHINA PATENT AGENT (H.K.) LTD. (CN)
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