Title:
DIGITAL PRE-DISTORTER FOR NON-LINEAR ELECTRONIC DEVICES
Document Type and Number:
WIPO Patent Application WO/2023/137649
Kind Code:
A1
Abstract:
There is provided mechanisms for operating a DPD for a non-linear electronic device. A method is performed by a DPD controller. The method comprises receiving an input signal destined to be input to the non-linear electronic device. The method comprises selecting a basis function that represent non-linear input-output characteristics of the non-linear electronic device. The basis function is defined by kernels of a pruned Volterra series, and comprises higher-than-order-1 polynomial terms, polynomial cross-terms, memory cross-terms, and common tap delays shared by all polynomial terms. The method comprises obtaining an output signal by subjecting the input signal to a linearization function defined by the basis function. The method comprises providing the output signal as input to the non-linear electronic device.
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Inventors:
FENG ANG (SE)
DIKMESE SENER (SE)
GAO HAO (CN)
DIKMESE SENER (SE)
GAO HAO (CN)
Application Number:
PCT/CN2022/072875
Publication Date:
July 27, 2023
Filing Date:
January 20, 2022
Export Citation:
Assignee:
ERICSSON TELEFON AB L M (SE)
FENG ANG (SE)
FENG ANG (SE)
International Classes:
H03F1/26
Foreign References:
| US20110080216A1 | 2011-04-07 | |||
| CN110336541A | 2019-10-15 | |||
| US20160261241A1 | 2016-09-08 |
Attorney, Agent or Firm:
CHINA PATENT AGENT (H.K.) LTD. (CN)
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