Title:
A DIGITAL PREDISTORTION DEVICE AND METHOD
Document Type and Number:
WIPO Patent Application WO/2020/138830
Kind Code:
A1
Abstract:
The disclosure discloses a digital predistortion (DPD) device and method. The DPD device comprises a predistorter configured to obtain a predistortion component from a digital baseband signal using a predistortion parameter and output the predistortion component; and a weighting unit configured to: obtain one or more weighted predistortion components by applying the predistortion component to one or more weighting coefficients, and obtain one or more predistortion correction signals by combining the digital baseband signal and the one or more weighted predistortion components, wherein the one or more weighting coefficients are determined based on the digital baseband signal, the predistortion component, and a synthesized signal in a main lobe direction obtained by combining radio frequency signals from a beamforming array.
Inventors:
YAN JIA (CN)
Application Number:
PCT/KR2019/018016
Publication Date:
July 02, 2020
Filing Date:
December 18, 2019
Export Citation:
Assignee:
SAMSUNG ELECTRONICS CO LTD (KR)
International Classes:
H04B1/62; H03F1/32; H04B1/04; H04B7/06
Domestic Patent References:
| WO2018067969A1 | 2018-04-12 |
Foreign References:
| US20100289572A1 | 2010-11-18 | |||
| US20180287569A1 | 2018-10-04 | |||
| US20110109384A1 | 2011-05-12 | |||
| KR101169880B1 | 2012-07-31 | |||
| EP3381129A1 | 2018-10-03 |
Other References:
BRIHUEGA ALBERTO; ANTTILA LAURI; ABDELAZIZ MAHMOUD; VALKAMA MIKKO: "Digital Predistortion in Large-Array Digital Beamforming Transmitters", 2018 52ND ASILOMAR CONFERENCE ON SIGNALS, SYSTEMS, AND COMPUTERS, IEEE, 28 October 2018 (2018-10-28), pages 611 - 618, XP033520931, DOI: 10.1109/ACSSC.2018.8645137
BRIHUEGA ALBERTO ET AL.: "2018 52ND ASILOMAR CONFERENCE ON SIGNALS, SYSTEMS, AND COMPUTERS", 28 October 2018, IEEE, article "Digital Predistortion in Large-Array Digital Beamforming Transmitters", pages: 611 - 618
See also references of EP 3874600A4
BRIHUEGA ALBERTO ET AL.: "2018 52ND ASILOMAR CONFERENCE ON SIGNALS, SYSTEMS, AND COMPUTERS", 28 October 2018, IEEE, article "Digital Predistortion in Large-Array Digital Beamforming Transmitters", pages: 611 - 618
See also references of EP 3874600A4
Attorney, Agent or Firm:
LEE, Keon-Joo et al. (KR)
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