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.
Patent No.:
Date of Patent:
Jul. 02, 2024
Filed:
Feb. 11, 2022
Fujitsu Limited, Kawasaki, JP;
Alexander Nikolaevich Lozhkin, Kawasaki, JP;
Tomoya Ota, Kawasaki, JP;
FUJITSU LIMITED, Kawasaki, JP;
Abstract
A radio communication device includes: a plurality of antenna elements; a phase shifter that applies weights for each of the antenna elements respectively to first-band data and second-band data of different frequency bands to form beams corresponding to the first-band data and the second-band data; a power amplifier that is arranged for each of the antenna elements; and a processor configured to compensate for non-linear distortion. The processor executes a process including calculating, using a first distortion compensation coefficient, a distortion compensation signal that compensates for in-band non-linear distortion of the first-band data and the second-band data, and calculating, using a second distortion compensation coefficient, an out-of-band compensation signal that compensates for out-of-band non-linear distortion of the first-band data and the second-band data, and the power amplifier amplifies a signal obtained by synthesizing the distortion compensation signal and the out-of-band compensation signal.