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:
Mar. 20, 2018

Filed:

Oct. 08, 2013
Applicants:

Lg Electronics Inc., Seoul, KR;

Snu R&db Foundation, Seoul, KR;

Inventors:

Hakseong Kim, Seoul, KR;

Kwangbok Lee, Seoul, KR;

Jongwoo Hong, Seoul, KR;

Sunghyun Choi, Seoul, KR;

Kyungsoo Kim, Seoul, KR;

Seonik Seong, Seoul, KR;

Assignees:

SNU R&DB FOUNDATION, Seoul, KR;

LG ELECTRONICS INC., Seoul, KR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04W 72/04 (2009.01); H04W 8/00 (2009.01); H04L 12/26 (2006.01); H04W 4/08 (2009.01); H04W 40/24 (2009.01); H04W 48/16 (2009.01); H04W 76/02 (2009.01); H04W 76/04 (2009.01);
U.S. Cl.
CPC ...
H04W 72/042 (2013.01); H04L 43/0864 (2013.01); H04W 4/08 (2013.01); H04W 8/005 (2013.01); H04W 40/244 (2013.01); H04W 40/246 (2013.01); H04W 48/16 (2013.01); H04W 76/023 (2013.01); H04W 76/046 (2013.01);
Abstract

The present invention provides a method and an apparatus performing device-to-device (D2D) communication in a wireless communication system. More particularly, D2D terminals supporting D2D communication are identified, discovery groups are formed for the D2D terminals using the same application, and discovery timing is established depending on the discovery group such that D2D terminals belonging to the same discovery group are shifted to an active state during the discovery timing in order to transceive signals by using time and frequency resources designated for D2D discovery with the discovery timing having a variable value depending on the discovery group.


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