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:
Oct. 26, 2021
Filed:
Nov. 02, 2018
Nec Corporation, Tokyo, JP;
Ryuji Zenkyu, Tokyo, JP;
Eisaku Sasaki, Tokyo, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
Provided is a radio transmission device, a baseband processing device, a radio transmission method, and a radio reception device that can reduce the peak to average power ratio in multiplex transmission using the OAM transmission system. In a baseband processing device (), a signal formation unit () forms N number of multiplex signals corresponding to N number of antenna devices () by multiplying M number (M is a natural number equal to or larger than 2) of data symbols that are different from and parallel to each other by a 'corrected weighting matrix'. The 'corrected weighting matrix' is obtained by adding the phase rotation matrix for suppressing the peak to a fixed OAM basic weighting matrix.