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:
Feb. 19, 2019

Filed:

Dec. 26, 2014
Applicant:

Ntt Docomo, Inc., Tokyo, JP;

Inventors:

Jiyun Shen, Tokyo, JP;

Satoshi Suyama, Tokyo, JP;

Takahiro Asai, Tokyo, JP;

Yukihiko Okumura, Tokyo, JP;

Hidekazu Murata, Kyoto, JP;

Assignee:

NTT DOCOMO, INC., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 72/08 (2009.01); H04L 5/00 (2006.01); H04B 7/04 (2017.01); H04B 7/0452 (2017.01); H04B 7/0456 (2017.01); H04B 7/06 (2006.01); H04W 84/00 (2009.01); H04W 16/28 (2009.01); H04L 1/00 (2006.01);
U.S. Cl.
CPC ...
H04W 72/082 (2013.01); H04B 7/04 (2013.01); H04B 7/0452 (2013.01); H04B 7/0456 (2013.01); H04B 7/0617 (2013.01); H04B 7/0619 (2013.01); H04L 5/006 (2013.01); H04L 5/0026 (2013.01); H04W 84/005 (2013.01); H04L 1/0026 (2013.01); H04W 16/28 (2013.01);
Abstract

To suppress reduction in system performance for mobile communications (group mobility) in a plurality of terminals existing inside the same moving object, a radio communication system for a plurality of user terminals existing inside a moving object and a radio base station is described. The user terminal receives a signal transmitted from the radio base station, and transmits the signal transmitted from the radio base station to a common reception apparatus disposed inside the moving object. The common reception apparatus detects a signal for each user terminal, based on signals transmitted from the plurality of user terminals, and transmits the detected signal to each user terminal. The user terminal receives the signal for the user terminal detected in the common reception apparatus to demodulate. Thus, for group mobility, it is possible to cancel interference among user terminals to improve the multiplexing effect, while suppressing communication overhead.


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