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:
Aug. 16, 2022
Filed:
Aug. 27, 2019
Nec Corporation, Tokyo, JP;
Jun Shikida, Tokyo, JP;
Naoto Ishii, Tokyo, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
A radio apparatus capable of reducing the amount of calculation required to suppress an interference signal is provided. A radio apparatus () includes a spatial transformation unit () configured to perform a spatial transformation on a received signal including a desired signal and an interference signal received by a plurality of antennas, and thereby calculate a first beam-space received signal vector, a beam selecting unit () configured to select at least two elements from the first beam-space received signal vector and generate a second beam-space received signal vector, and an interference suppression synthesis unit () configured to estimate a covariance matrix of an interference noise signal including a noise signal and the interference signal included in the second beam-space received signal vector, generate a reception weight by using this covariance matrix, and detect the desired signal based on the reception weight and the second beam-space received signal vector.