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. 28, 2012
Filed:
Feb. 10, 2009
Yusuke Ohwatari, Yokohama, JP;
Takahiro Asai, Yokosuka, JP;
Satoshi Suyama, Tokyo, JP;
Hiroshi Suzuki, Tokyo, JP;
Kazuhiko Fukawa, Tokyo, JP;
Yusuke Ohwatari, Yokohama, JP;
Takahiro Asai, Yokosuka, JP;
Satoshi Suyama, Tokyo, JP;
Hiroshi Suzuki, Tokyo, JP;
Kazuhiko Fukawa, Tokyo, JP;
NTT DoCoMo, Inc., Tokyo, JP;
Tokyo Institute of Technology, Tokyo, JP;
Abstract
A wireless communication device that transmits a wireless signal by carrying out linear precoding processing using a plurality of transmission antennas is provided with: a phase pattern control unit for selecting a phase pattern that reduces peak-to-average power ratio; a phase rotation unit for carrying out phase rotation on a modulation signal using the phase pattern selected in the phase pattern control unit; a control signal generation unit for generating a control signal based on the phase pattern selected in the phase pattern control unit; and a preceding unit for carrying out linear precoding processing on output signals from the phase rotation unit and output signals from the control signal generation unit.