公开(公告)号：US20210013958A1

公开(公告)日：2021-01-14

申请号：US17021030

申请日：2020-09-15

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Kap Seok CHANG ,  Hyoung Jin KWON ,  Sung Geun JIN ,  Yong Sun KIM ,  Seung Eun HONG ,  Woo Yong LEE ,  Hyun Kyu CHUNG

IPC: H04B7/155 ,  H04W72/12 ,  H04W24/08 ,  H04W72/08

Abstract: Provided is an apparatus and method for wideband short-range wireless communication using a directional antenna in a millimeter wave band, and the method for wideband short-range wireless communication according to an embodiment may determine a first time interval and a second time interval for a cooperated data frame transfer based on a packet transmission time at each transmission from a source node to a destination node, transmit a frame to a relay node through an antenna pattern directed towards the relay node at a start point of the first time interval, and transmit the frame to the destination node through an antenna pattern directed towards the destination node after a predetermined period of time from a start point of the second time interval.

公开(公告)号：US20180184335A1

公开(公告)日：2018-06-28

申请号：US15904279

申请日：2018-02-23

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Hyoung Jin KWON ,  Yong Sun KIM ,  Kap Seok CHANG ,  Seung Eun HONG ,  Sung Geun JIN ,  Woo Yong LEE ,  Hyun Kyu CHUNG

IPC: H04W28/26 ,  H04W28/16 ,  H04W40/22 ,  H04B7/155

Abstract: Provided is a communication method of a coordinator in a wireless networks system that uses a reservation-based media access control (MAC). The communication method includes receiving, from a source device, a frame that requests a reservation resource for a relay device, to enable a frame that the source device transmits to a destination device to be relayed via the relay device, and allocating the reservation resource for the relay device, in response to the request.

公开(公告)号：US20180131600A1

公开(公告)日：2018-05-10

申请号：US15863471

申请日：2018-01-05

Applicant: Electronics and Telecommunications Research Institute

Inventor： Seung Eun HONG ,  Kyeongpyo KIM ,  Yong Sun KIM ,  Hyoung Jin KWON ,  Woo Yong LEE

IPC: H04L12/707 ,  H04W40/24 ,  H04W24/04 ,  H04L12/703 ,  H04L12/24

CPC classification number: H04L45/22 ,  H04L41/5038 ,  H04L41/5054 ,  H04L41/5077 ,  H04L45/28 ,  H04W24/04 ,  H04W40/244

Abstract: Provided is a method and apparatus for setting a detour path in a wideband high frequency wireless system using a centralized Media Access Control (MAC) protocol. Here, in a wireless system using the centralized MAC protocol where a time synchronization and a band allocation may be performed by a single central control unit, when a signal blockage occurs while a data communication is being performed via a direct path between a source device and a destination device, the detour path may be quickly provided.

公开(公告)号：US20180049070A1

公开(公告)日：2018-02-15

申请号：US15790644

申请日：2017-10-23

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Kyeongpyo KIM ,  Seung Eun HONG ,  Woo Yong LEE ,  Hyun Kyu CHUNG

IPC: H04W28/26 ,  H04W16/28 ,  H04W72/12 ,  H04W72/08

CPC classification number: H04W28/26 ,  H04W16/28 ,  H04W72/082 ,  H04W72/1231

Abstract: A method of operating a network coordinator for a spatial reuse scheme includes receiving a reservation request for a time period for a data communication of a target transmitter/receiver pair that uses a directional antenna, searching for a time period reserved in advance for another transmitter/receiver pair, from a Channel Time Allocation Period (CTAP) that is a contention-free access period for the data communication, and reserving a time period for the target transmitter/receiver pair in the CTAP, so that the time period reserved for the target transmitter/receiver pair overlaps the time period reserved in advance for the other transmitter/receiver pair.

公开(公告)号：US20170162951A1

公开(公告)日：2017-06-08

申请号：US15369682

申请日：2016-12-05

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Woo Yong LEE

IPC: H01Q21/29 ,  H01Q3/02

CPC classification number: H01Q21/29 ,  H01Q3/02 ,  H04B7/0413 ,  H04B7/0617 ,  H04B7/0691 ,  H04W88/00

Abstract: A multiple-input and multiple-output (MIMO) communication method and apparatus is disclosed. The MIMO communication method may include setting a target channel capacity between at least one transmitting antenna and at least one receiving antenna, calculating a current channel capacity between the transmitting antenna and the receiving antenna based on a transmission signal output from the transmitting antenna, and in response to the current channel capacity not meeting the target channel capacity, changing an arrangement or an attribute of the transmitting antenna or the receiving antenna to adjust the to transmission signal output from the transmitting antenna.

公开(公告)号：US20150078193A1

公开(公告)日：2015-03-19

申请号：US14550365

申请日：2014-11-21

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Hyoung Jin KWON ,  Yong Sun KIM ,  Sung Geun JIN ,  Kap Seok CHANG ,  Seung Eun HONG ,  Woo Yong LEE ,  Hyun Kyu CHUNG

IPC: H04B7/155 ,  H04L5/14 ,  H04W24/08

CPC classification number: H04B7/15557 ,  H04B7/1555 ,  H04L5/14 ,  H04L45/22 ,  H04W24/00 ,  H04W24/08 ,  H04W72/02 ,  H04W84/047

Abstract: A communication method of a source device according to an embodiment includes detecting a status of a first link directly connected from the source device to a destination device or a status of a second link connected from the source device to the destination device via a relay device, selecting any one of the first link and the second link based on a result of the detection, and transmitting data using the selected link.

Abstract translation: 根据实施例的源设备的通信方法包括：经由中继设备检测从源设备直接连接到目的地设备的第一链路的状态或从源设备连接到目的设备的第二链路的状态， 基于检测结果选择第一链路和第二链路中的任何一个，以及使用所选择的链路发送数据。

公开(公告)号：US20140370802A1

公开(公告)日：2014-12-18

申请号：US14472298

申请日：2014-08-28

Applicant: Electronics and Telecommunications Research Institute

Inventor： Kap Seok CHANG ,  Hyoung Jin KWON ,  Sung Geun JIN ,  Yong Sun KIM ,  Seung Eun HONG ,  Woo Yong LEE ,  Hyun Kyu CHUNG

IPC: H04B7/155

CPC classification number: H04B7/15528 ,  H04B7/15592 ,  H04B7/2606 ,  H04W40/22 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/39 ,  Y02D70/446 ,  Y02D70/449

Abstract: The present invention provides a wireless communication method used for transmitting and receiving a relay in a wireless local area network system. The wireless local area network system according to an embodiment of the present invention relates to a wireless communication method of setting a relay link through a relay and setting a transmission time point at which a data frame is transmitted in a source device by recognizing a propagation delay between devices, and the like when an operation mode of the set relay corresponds to a cooperating mode.

Abstract translation: 本发明提供一种用于在无线局域网系统中发送和接收中继的无线通信方法。 根据本发明的实施例的无线局域网系统涉及通过中继设置中继链路的无线通信方法，并且通过识别传播延迟来设置在源设备中发送数据帧的传输时间点 当设置的继电器的操作模式对应于协作模式时，在设备之间等。

公开(公告)号：US20140241238A1

公开(公告)日：2014-08-28

申请号：US14269440

申请日：2014-05-05

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Kapseok CHANG ,  Young-Hoon KIM ,  Woo Yong LEE ,  Hyun Kyu CHUNG

IPC: H04L5/00

CPC classification number: H04L5/0007 ,  H04B7/14 ,  H04L5/0032 ,  H04L5/0037 ,  H04L5/0048 ,  H04L25/03866 ,  H04L27/2613 ,  H04L27/2655

Abstract: Provided is an apparatus for allocating a sequence to a synchronization channel for a node identification (ID), the apparatus including: a base node sequence generator to generate a base sequence that is a sequence for a node ID of a base node; a relay node sequence generator to generate a relay sequence that is a sequence for a node ID of a relay node by transforming the base sequence; a baseband signal generator to generate a baseband signal by mapping the base sequence or the relay sequence to a frequency domain and a time domain; and a transmitter to transmit the baseband signal.

Abstract translation: 提供了一种用于将序列分配给用于节点标识（ID）的同步信道的装置，所述装置包括：基本节点序列生成器，用于生成作为基本节点的节点ID的序列的基本序列; 中继节点序列发生器，用于通过转换所述基本序列来产生作为中继节点的节点ID的序列的中继序列; 基带信号发生器，用于通过将基本序列或中继序列映射到频域和时域来产生基带信号; 以及用于发送基带信号的发射机。

公开(公告)号：US20140070967A1

公开(公告)日：2014-03-13

申请号：US14021237

申请日：2013-09-09

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Woo Yong LEE ,  Jin Kyeong KIM

IPC: H03M7/30

CPC classification number: H03M7/6047 ,  H03M7/3062

Abstract: Provided is an electronic signal conversion apparatus and an operation method of the electronic signal conversion apparatus, including: a first converter to perform a compression and conversion of an input signal to a digital signal based on a first sampling; a second converter to perform a compression and conversion of the input signal to the digital signal based on a second sampling different from the first sampling; and a processor to restore the input signal using an output signal of the first converter and an output signal of the second converter.

Abstract translation: 提供一种电子信号转换装置的电子信号转换装置和操作方法，包括：第一转换器，用于基于第一采样执行对数字信号的输入信号的压缩和转换; 第二转换器，用于基于与第一采样不同的第二采样来执行对数字信号的输入信号的压缩和转换; 以及使用第一转换器的输出信号和第二转换器的输出信号来恢复输入信号的处理器。