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:
Sep. 08, 2015
Filed:
Dec. 26, 2008
Hidekazu Taoka, Tokyo, JP;
Nobuhiko Miki, Yokohama, JP;
Kenichi Higuchi, Saitama, JP;
Mamoru Sawahashi, Yokohama, JP;
Hidekazu Taoka, Tokyo, JP;
Nobuhiko Miki, Yokohama, JP;
Kenichi Higuchi, Saitama, JP;
Mamoru Sawahashi, Yokohama, JP;
NTT DOCOMO, INC., Tokyo, JP;
Abstract
A user apparatus in a multi input multi output (MIMO) mobile communications system using pre-encoding is disclosed. The user apparatus includes a PMI generator which generates a pre-encoding matrix indicator (PMI) which indicates a pre-encoding matrix to be used by a base station; a transmitter which feeds back the PMI to the base station; and a receiver which receives a signal from the base station, wherein the signal received at the receiver includes information on whether it is according to PMI information fed back from the user apparatus after a predetermined elapsed time from a timing at which the PMI information is fed back from the user apparatus.