公开(公告)号：US09277518B2

公开(公告)日：2016-03-01

申请号：US14165017

申请日：2014-01-27

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hyung Jin Kim ,  Chanho Yoon ,  Soojung Jung ,  Sung Kyung Kim ,  Seungkwon Cho ,  Sung Cheol Chang ,  DongSeung Kwon

IPC: H04W56/00 ,  H04W4/00

CPC classification number: H04W56/0025 ,  H04W4/70 ,  H04W56/002

Abstract: A synchronization method by a device is provided in a device-to-device direct communication. The device receives synchronization signals from a plurality of other devices at a current frame, and estimates a synchronization time at a next frame based on the synchronization signals received from the other devices.

Abstract translation: 在设备到设备的直接通信中提供了设备的同步方法。 设备在当前帧从多个其他设备接收同步信号，并且基于从其他设备接收到的同步信号来估计下一帧的同步时间。

公开(公告)号：US12143322B2

公开(公告)日：2024-11-12

申请号：US18333237

申请日：2023-06-12

Applicant: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. ,  ETRI—Electronics and Telecommunications Research Institute

Inventor： Sameh Eldessoki ,  Johannes Dommel ,  Wooram Shin ,  Thomas Haustein ,  Lars Thiele ,  Young-Jo Ko ,  Seungkwon Baek ,  Chanho Yoon

IPC: H04L5/00 ,  H04J11/00 ,  H04L27/26 ,  H04W52/34

Abstract: A wireless communication system includes a first transmitter and a second transmitter. For a transmission or reception of data of a first user equipment and data of a second user equipment on resources shared by the first user equipment and the second user equipment, the first transmitter is configured for a superimposed non-orthogonal multiple access, NOMA, transmission or reception of a first data signal of the first user equipment and a second data signal of the second user equipment, and the second transmitter is configured for a superimposed non-orthogonal multiple access, NOMA, transmission or reception of a third data signal of the first user equipment and a fourth data signal of the second user equipment.

公开(公告)号：US10314063B2

公开(公告)日：2019-06-04

申请号：US15317098

申请日：2016-04-29

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Chanho Yoon ,  Young Jo Ko ,  Seung-Kwon Baek ,  Eunkyung Kim

IPC: H04L12/28 ,  H04W72/12 ,  H04L5/00 ,  H04L27/26 ,  H04W28/26 ,  H04W72/04 ,  H04W56/00 ,  H04L1/00 ,  H04W84/04 ,  H04J1/16 ,  H04W74/08

Abstract: There is provided a method for transmitting, by a transmitter, a signal through an unlicensed band channel. The transmitter transmits an initial signal through the unlicensed band channel to preoccupy the unlicensed band channel when the unlicensed band channel is in an idle status. The transmitter includes a first partial subframe transmitted after the initial signal in a frame burst depending to transmission timing of the initial signal. Further, the transmitter transmits the frame burst through the unlicensed band channel.

公开(公告)号：US10277366B2

公开(公告)日：2019-04-30

申请号：US15010855

申请日：2016-01-29

Applicant: Electronics and Telecommunications Research Institute

Inventor： Eunkyung Kim ,  Seung-Kwon Baek ,  Chanho Yoon ,  Jae Sun Cha ,  Sung Cheol Chang ,  Young Jo Ko

IPC: H04L5/00 ,  H04W74/08 ,  H04L1/18

Abstract: A method and an apparatus for transmitting a resource, and a method for the HARQ retransmission using an unlicensed band include an operation of performing clear channel assessment (CCA) for the unlicensed band; and an operation of occupying a channel of the unlicensed band according to the CCA and determining whether or not the resource is transmitted based on a position of a transmission time interval (TTI) within a channel occupancy time (COT) for the channel.

公开(公告)号：US10219159B2

公开(公告)日：2019-02-26

申请号：US15012190

申请日：2016-02-01

Applicant: Electronics and Telecommunications Research Institute

Inventor： Seung-Kwon Baek ,  Chanho Yoon ,  Eunkyung Kim ,  Jae Sun Cha ,  Sung Cheol Chang ,  Young Jo Ko

IPC: H04W72/12 ,  H04W16/14 ,  H04W48/20 ,  H04W52/02 ,  H04L5/00 ,  H04W74/08 ,  H04W24/02 ,  H04W48/12 ,  H04W88/06 ,  H04W36/00

Abstract: There are provided a method and apparatus for transmitting a discovery reference signal (DRS) through transmitting the DRS to a user equipment through a channel of an unlicensed band, receiving measurement report for measurement performed based on the DRS from the user equipment, and scheduling the cell of the unlicensed band based on the measurement report and providing a service to the user equipment through the cell of the unlicensed band.

公开(公告)号：US10212726B2

公开(公告)日：2019-02-19

申请号：US15331371

申请日：2016-10-21

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Seung-Kwon Baek ,  Young Jo Ko ,  Eunkyung Kim ,  Chanho Yoon

IPC: H04W72/12 ,  H04L1/18

Abstract: Disclosed herein is a method for transmitting, by a terminal, an uplink signal using a first cell type representing a cell using a licensed band frequency and a second cell type representing a cell using an unlicensed band frequency. The terminal configures at least one first radio bearer (RB) being able to use a radio resource for the first cell type and a radio resource for the second cell type for an uplink transmission. The terminal configures at least one second RB being able to use a radio resource for the first cell type for an uplink transmission. The terminal includes at least one first logical channel corresponding to the at least one first RB in a first logical channel group, and the terminal includes at least one second logical channel corresponding to the at least one second RB in a second logical channel group.

公开(公告)号：US09408137B2

公开(公告)日：2016-08-02

申请号：US14058894

申请日：2013-10-21

Applicant: Electronics and Telecommunications Research Institute

Inventor： Soojung Jung ,  Sung Kyung Kim ,  Seungkwon Cho ,  Chanho Yoon ,  Hyung Jin Kim ,  Sung Cheol Chang ,  DongSeung Kwon

IPC: H04W48/16 ,  H04W4/06 ,  H04W76/02

CPC classification number: H04W48/16 ,  H04W4/06 ,  H04W76/14

Abstract: A discovery signal that a first device joining in direct communication broadcasts through a radio channel is provided. The discovery signal includes a first field representing whether the discovery signal is a signal for discovering a device or a signal for discovering a service, and a second field including one of device identifier information of the first device and service information of a service that the first device provides according to a value of the first field.

Abstract translation: 提供了通过无线电信道广播直接通信的第一设备的发现信号。 发现信号包括表示发现信号是用于发现设备的信号还是用于发现服务的信号的第一字段，以及包括第一设备的设备标识符信息和第一设备的服务信息之一的第二字段 设备根据第一个字段的值提供。

公开(公告)号：US09204479B2

公开(公告)日：2015-12-01

申请号：US14023862

申请日：2013-09-11

Applicant: Electronics and Telecommunications Research Institute

Inventor： Sung Kyung Kim ,  Soojung Jung ,  Seungkwon Cho ,  Hyung Jin Kim ,  Chanho Yoon ,  Sung Cheol Chang

IPC: H04W76/02 ,  H04L5/00 ,  H04W4/00

CPC classification number: H04W76/023 ,  H04L5/0007 ,  H04L5/0032 ,  H04L5/0037 ,  H04L5/0094 ,  H04W4/70 ,  H04W76/14

Abstract: A method in which a transmitting terminal included in an talk-around direct communication (TDC) network transmits data includes: determining a data frame for transmitting the data; requesting to reserve a data transmission segment included in the data frame through a transmission request segment included in the data frame; receiving a response signal transmitted in a transmission response segment included in the data frame; and analyzing the response signal and transmitting the data through the data transmission segment.

Abstract translation: 包括在通话直接通信（TDC）网络中的发送终端发送数据的方法包括：确定用于发送数据的数据帧; 请求通过包括在数据帧中的传输请求段来保留包括在数据帧中的数据传输段; 接收在所述数据帧中包括的传输响应段中发送的响应信号; 并分析响应信号并通过数据传输段发送数据。