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:
Dec. 19, 2017

Filed:

Jul. 10, 2014
Applicant:

Samsung Electronics Co., Ltd., Suwon-si, KR;

Inventors:

Sangkyu Baek, Suwon-si, KR;

Seunghoon Park, Seoul, KR;

Kyungkyu Kim, Suwon-si, KR;

Hyunseok Ryu, Yongin-si, KR;

Chiwoo Lim, Suwon-si, KR;

Youngbin Chang, Anyang-si, KR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04W 8/00 (2009.01); H04W 48/16 (2009.01); H04W 76/02 (2009.01); H04L 12/801 (2013.01); H04W 72/00 (2009.01); H04W 72/04 (2009.01);
U.S. Cl.
CPC ...
H04W 8/005 (2013.01); H04L 47/11 (2013.01); H04W 48/16 (2013.01); H04W 72/005 (2013.01); H04W 72/0446 (2013.01); H04W 76/023 (2013.01);
Abstract

The present invention relates to a method for performing a D2D discovery and a terminal using the same. Particularly, the present invention relates to a method for performing a D2D discovery, which compares a congestion level of another discovery slot selected randomly or according to a preset pattern with a threshold or a congestion level of a current discovery slot and determines a discovery slot to transmit a discovery message and a transmission period of the discovery message according to a result of the comparison, and a terminal using the same. The present invention relates to a method for performing a D2D discovery using discovery resources including a plurality of discovery slots, and a terminal performing the same, the method comprising the steps of: broadcasting a discovery message by using a first discovery slot; comparing a congestion level of a selected second discovery slot with a predetermined congestion level value; determining a discovery slot to broadcast the discovery message on the basis of a result of the comparison; and broadcasting the discovery message by using the determined discovery slot.


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