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:
Jul. 09, 2013

Filed:

Jun. 09, 2009
Applicants:

Mototsugu Suzuki, Yokosuka, JP;

Tetsurou Imai, Yokosuka, JP;

Koushirou Kitao, Yokohama, JP;

Yoshihiro Ishikawa, Yokosuka, JP;

Inventors:

Mototsugu Suzuki, Yokosuka, JP;

Tetsurou Imai, Yokosuka, JP;

Koushirou Kitao, Yokohama, JP;

Yoshihiro Ishikawa, Yokosuka, JP;

Assignee:

NTT DoCoMo, Inc., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 27/06 (2006.01);
U.S. Cl.
CPC ...
Abstract

A reception device calculates a radio quality in a downlink by using a plurality of pilot symbols transmitted from a base station. The reception device includes a correlation calculation unit and a radio quality calculation unit. The correlation calculation unit calculates a correlation value between a first pilot symbol and a second pilot symbol on a time axis or a correlation value there between on a frequency axis. If the correlation value obtained by the correlation calculation unit exceeds a predetermined threshold value, the radio quality calculation unit calculates a radio quality in the downlink by using a reception quality of the first pilot symbol and a reception quality of the second pilot symbol.


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