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.

Date of Patent:
Aug. 15, 2017

Filed:

Sep. 23, 2014
Applicant:

Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;

Inventor:

Chimato Koike, Fujisawa, JP;

Assignee:

FUJITSU LIMITED, Kawasaki, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04W 24/08 (2009.01); H04L 25/02 (2006.01); H04J 11/00 (2006.01);
U.S. Cl.
CPC ...
H04L 25/0202 (2013.01); H04J 11/005 (2013.01); H04J 11/0046 (2013.01);
Abstract

A mobile station includes a calculation unit, an adjustment unit, an estimation unit, and a measurement unit. The calculation unit calculates a weighting matrix for use in channel estimation of an interfering cell. The adjustment unit adjusts values of respective components of the weighting matrix calculated by the calculation unit so that out of the respective components, diagonal components are smaller than components other than the diagonal components. The estimation unit suppresses a noise component included in a value of the channel estimation by using the weighting matrix whose respective component values were adjusted by the adjustment unit so as to perform the channel estimation of the interfering cell. The measurement unit cancels a signal of the interfering cell from a received signal based on a result of the channel estimation and measures a reception quality of a measurement target cell with respect to the received signal.


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