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:
Feb. 18, 2014
Filed:
Apr. 24, 2009
Shinsuke Takaoka, Kanagawa, JP;
Katsuhiko Hiramatsu, Kanagawa, JP;
Akihiko Nishio, Kanagawa, JP;
Ryohei Kimura, Tokyo, JP;
Yoshiko Saito, Kanagawa, JP;
Megumi Ichikawa, Kanagawa, JP;
Shinsuke Takaoka, Kanagawa, JP;
Kenichi Miyoshi, Kanagawa, JP;
Katsuhiko Hiramatsu, Kanagawa, JP;
Akihiko Nishio, Kanagawa, JP;
Ryohei Kimura, Tokyo, JP;
Yoshiko Saito, Kanagawa, JP;
Panasonic Corporation, Osaka, JP;
Abstract
Provided is a wireless communication device which can improve the notification accuracy of the channel state information (CSI) without straining the feedback circuit. In this device, a channel estimator () uses a pilot signal input from a wireless receiver () to estimate the channel and obtain a plurality of path gains in each of a plurality of delay periods. Then, the channel estimator () outputs the plurality of path gains to a quantizer (). The quantizer () quantizes the plurality of path gains in the number of notification bits corresponding to each of the plurality of delay periods based on the correspondence of the delay period and the number of notification bits input from a setting unit ().