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:
Nov. 23, 2021

Filed:

Dec. 18, 2017
Applicant:

Ntt Docomo, Inc., Tokyo, JP;

Inventors:

Akira Kishida, Tokyo, JP;

Yoshifumi Morihiro, Tokyo, JP;

Takahiro Asai, Tokyo, JP;

Yukihiko Okumura, Tokyo, JP;

Assignee:

NTT DOCOMO, INC., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 48/20 (2009.01); H04W 24/10 (2009.01); H04W 36/08 (2009.01); H04W 64/00 (2009.01); H04W 88/06 (2009.01);
U.S. Cl.
CPC ...
H04W 48/20 (2013.01); H04W 24/10 (2013.01); H04W 36/08 (2013.01); H04W 64/003 (2013.01); H04W 88/06 (2013.01);
Abstract

In user terminalof the present invention, connection-cell-selection controlling sectionmeasures reception quality of signals respectively transmitted from cells and received by antenna section, corrects the reception quality of each of the cells based on a positional relationship between each of the cells and user terminaland based on a moving direction of user terminal, and determines a connection cell for user terminal(base station in communication with user terminal) based on the corrected reception quality. This configuration lowers a cell switching frequency, while preventing degradation of throughput and the like in a future radio communication system (multilayer cellular radio network).


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