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. 15, 2017
Filed:
Oct. 09, 2013
Kyocera Corporation, Kyoto, JP;
Takahiro Saiwai, Kawasaki, JP;
Chiharu Yamazaki, Ota-ku, JP;
Kugo Morita, Yokohama, JP;
Fangwei Tong, Machida, JP;
Atsuhisa Inakoshi, Kawasaki, JP;
Masato Fujishiro, Yokohama, JP;
KYOCERA Corporation, Kyoto, JP;
Abstract
A mobile communication system performs downlink multi-antenna transmission by applying a precoder matrix that defines transmission directionality of downlink and a rank that defines number of signal sequences of the downlink. The mobile communication system comprises a user terminal that feeds back feedback information of a target frequency band, to a base station. The feedback information includes combinations of precoder matrix information indicating the precoder matrix and rank information indicating the rank.