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. 13, 2018

Filed:

Mar. 20, 2015
Applicant:

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

Inventors:

Sang-Min Ro, Seoul, KR;

Yong-Jun Kwak, Yongin-si, KR;

Kyeong-In Jeong, Yongin-si, KR;

Hyoung-Ju Ji, Seoul, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 5/00 (2006.01); H04L 27/26 (2006.01); H04W 8/00 (2009.01); H04W 76/02 (2009.01);
U.S. Cl.
CPC ...
H04L 5/0051 (2013.01); H04L 27/2613 (2013.01); H04L 27/2646 (2013.01); H04L 5/0058 (2013.01); H04W 8/005 (2013.01); H04W 76/023 (2013.01);
Abstract

A method and an apparatus for generating a sequence including a demodulation reference signal (DM RS) and a preamble in device-to-device (D2D) communications are provided. The method includes obtaining, by a controller of an apparatus, a synchronization identify of a synchronization signal used for the D2D communication, obtaining a group identify of a communication group where a terminal belongs, generating a DM RS sequence for the D2D communication based on at least one of the synchronization identity and the group identity, mapping the DM RS sequence to predetermined symbol positions in a subframe, and transmitting the DM RS sequence from the terminal through the subframe.


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