公开(公告)号：US10225810B2

公开(公告)日：2019-03-05

申请号：US14818573

申请日：2015-08-05

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyunseok Ryu ,  Peng Xue ,  Seunghoon Park ,  Sangwon Choi

IPC: H04W56/00 ,  H04W72/04 ,  H04W72/12 ,  H04W76/14

Abstract: The present disclosure relates to a pre-fifth generation (5G) or 5G communication system to be provided for supporting higher data rates beyond fourth generation (4G) communication system such as long term evolution (LTE).A synchronization signal transmission/reception method for use in a device-to-device (D2D) communication system is provided. A method of transmitting a synchronization signal for D2D communication in an asynchronous network, in which a first terminal located in a first cell controls synchronization with a second terminal located outside of the first cell, includes transmitting, at the first cell, a system information block (SIB) including resource allocation information of the first cell and at least one neighboring cell, determining whether the first terminal is in a first mode and whether the first terminal is scheduled to perform one of a D2D communication and a D2D discovery; determining, when the first terminal is in the first mode, whether the first terminal is required to transmit a D2D synchronization signal (D2DSS); and transmitting, when the first terminal is required to transmit the D2DSS, scheduling information including a transmission time point and transmission reference timing information to the first terminal.

公开(公告)号：US09907033B2

公开(公告)日：2018-02-27

申请号：US15512520

申请日：2015-09-11

Applicant: Samsung Electronics Co., Ltd

Inventor： Chiwoo Lim ,  Hyunseok Ryu ,  Seunghoon Park ,  Peng Xue

IPC: H04W52/38 ,  H04W72/12

CPC classification number: H04W52/38 ,  H04W52/367 ,  H04W52/383 ,  H04W72/12 ,  H04W76/23

Abstract: The present invention relates to a 5G or pre-5G communication system which is to be provided to support high data throughput beyond a 4G communication system such as LTE. The communication method for a terminal in a wireless communication system supporting carrier aggregation according to the present invention comprises the steps of: confirming data transmission between different carriers is carried out on the basis of cellular and device-to-device (D2D) communication; reducing the transmission power for a D2D communication-based data transmission to a configured value; and, if no cellular communication-based data transmission occurs during a set time, then restoring the reduced transmission power for the D2D communication-based data transmission.

公开(公告)号：US09820285B2

公开(公告)日：2017-11-14

申请号：US14820429

申请日：2015-08-06

Applicant: Samsung Electronics Co., Ltd.

Inventor： Peng Xue ,  Hyunseok Ryu ,  Seunghoon Park ,  Sangwon Choi

IPC: H04W72/04 ,  H04W56/00 ,  H04W74/00 ,  H04W76/02 ,  H04W76/04

CPC classification number: H04W72/048 ,  H04W56/001 ,  H04W74/006 ,  H04W76/14 ,  H04W76/27 ,  H04W76/28

Abstract: The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. A terminal includes a transceiver configured to transmit or receive signals, and a controller configured to determine whether a current subframe is a subframe in which the terminal has to monitor a PDCCH, in response to the current subframe not being the subframe, determine whether a discovery pool for the terminal exists, and when the discovery pool for the terminal exists, operate a D2D discovery operation in the current subframe.

公开(公告)号：US20160198518A1

公开(公告)日：2016-07-07

申请号：US14916171

申请日：2014-09-01

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sangkyu Baek ,  Youngbin Chang ,  Hyunjeong Kang ,  Kyungkyu Kim ,  Seunghoon Park ,  Sungjin Lee

IPC: H04W76/04 ,  H04W24/10

CPC classification number: H04W76/27 ,  H04W8/005 ,  H04W24/10 ,  H04W48/16 ,  H04W76/23

Abstract: The present invention relates to a method and an apparatus for switching a data path in a wireless communication system supporting device-to-device (D2D) communication. The method for switching a path of a base station in a wireless communication system supporting device-to-device communication, according to the present invention, comprises the steps of receiving, from a first terminal, a measurement report including a D2D identifier of a second terminal that performs a direct communication with the first terminal; sending a query to a D2D server for a network identifier corresponding to the D2D identifier of the second terminal; and determining whether to switch a direct path between the first terminal and the second terminal to a local path on the basis of the network identifier of the second terminal obtained from the D2D server.

Abstract translation: 本发明涉及用于在支持设备到设备（D2D）通信的无线通信系统中切换数据路径的方法和装置。 根据本发明的用于在支持设备到设备通信的无线通信系统中切换基站的路径的方法包括以下步骤：从第一终端接收包括第二个的D2D标识符的测量报告 终端，与第一终端进行直接通信; 向D2D服务器发送对应于所述第二终端的D2D标识符的网络标识符的查询; 并且基于从所述D2D服务器获得的所述第二终端的网络标识，确定是否将所述第一终端和所述第二终端之间的直接路径切换到本地路径。