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:
Apr. 18, 2017

Filed:

Mar. 13, 2014
Applicant:

Ntt Docomo, Inc., Tokyo, JP;

Inventors:

Satoshi Nagata, Tokyo, JP;

Qun Zhao, Beijing, CN;

Yongbo Zeng, Beijing, CN;

Yongsheng Zhang, Beijing, CN;

Assignee:

NTT DOCOMO, INC., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 28/04 (2009.01); H04W 8/00 (2009.01); H04W 76/02 (2009.01); H04L 1/00 (2006.01); H04W 92/18 (2009.01);
U.S. Cl.
CPC ...
H04W 28/046 (2013.01); H04L 1/00 (2013.01); H04W 8/005 (2013.01); H04W 76/022 (2013.01); H04W 92/18 (2013.01);
Abstract

A user apparatus that transmits and receives a discovery signal, including: collision detection means that detects a collision in a received discovery signal; collision notification means that, when a collision of a received discovery signal is detected by the collision detection means, transmits collision information indicating that a collision occurs in the received discovery signal; collision information reception means that receives collision information; and collision determination means that determines whether a collision occurs in a transmitted discovery signal transmitted by the user apparatus based on the collision information received by the collision information reception means.


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