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:
Dec. 30, 2014
Filed:
Oct. 26, 2010
Eiji Mochida, Osaka, JP;
Eiji Mochida, Osaka, JP;
Sumitomo Electric Industries, Ltd., Osaka-shi, Osaka, JP;
Abstract
A decrease in weight calculation accuracy in MMSE combining caused by a shift in the discrete Fourier transform timing of received signals is prevented. A wireless communication apparatus BSincludes an MMSE combining processing unitthat performs MMSE combining based on frequency domain received signals obtained by performing a discrete Fourier transform on received signals. The wireless communication apparatus BSincludes an amount-of-phase-rotation estimating unitthat estimates an amount of phase rotation occurring in the frequency domain received signals due to a shift in discrete Fourier transform timing of the received signals; and reverse rotation unitsandthat apply a reverse rotation of an amount of rotation corresponding to the amount of phase rotation estimated by the amount-of-phase-rotation estimating unit, to the frequency domain received signals. The MMSE combining processing unitcomputes an MMSE weight based on the frequency domain received signals to which the reverse rotation has been applied by the reverse rotation unitsand, and performs MMSE combining.