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公开(公告)号：US09237540B2
公开(公告)日：2016-01-12
申请号：US14586901
申请日：2014-12-30
Inventor： Kap Seok Chang , Sung Geun Jin , Hyun Kyu Chung , Woo Yong Lee , Hyoung Jin Kwon
CPC classification number: H04W56/005 , H04B7/15592 , H04W56/00 , H04W56/001 , H04W56/002 , H04W56/0045
Abstract: A source station for synchronization of transmission and reception of data in a cooperative communication system includes a first receiver to receive, from a destination station, a first request frame including information regarding a first point in time when a first response frame is to be transmitted; a first transmitter to transmit the first response frame to the destination station, at the first point in time; a second transmitter to transmit, to a relay station, a second request frame including information regarding a second point in time when a second response frame is to be transmitted; a second receiver to receive the second response frame transmitted by the relay station at the second point in time; and a time estimator to estimate a first propagation delay time between the source station and the relay station, based on a time in which the second response frame is received.
Abstract translation: 用于同步协作通信系统中的数据的发送和接收的源站包括：第一接收机，用于从目的地站接收第一请求帧，该第一请求帧包括关于要发送第一响应帧的第一时间点的信息; 在第一时间点将第一响应帧发送到目的地站的第一发射机; 第二发送器，用于向中继站发送包括关于要发送第二响应帧的第二时间点的信息的第二请求帧; 第二接收器，用于接收由所述中继站在所述第二时间点发送的所述第二响应帧; 以及时间估计器，用于基于接收到第二响应帧的时间来估计源站和中继站之间的第一传播延迟时间。
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公开(公告)号：US20130163468A1
公开(公告)日：2013-06-27
申请号：US13723686
申请日：2012-12-21
Inventor： Sung Geun JIN , Jin Kyeong Kim , Hyun Kyu Chung
IPC: H04W4/06
CPC classification number: H04W4/06
Abstract: Provided is a wireless device and method for searching for a neighboring device in which the wireless device may spread a probe request message for searching for neighboring wireless devices using a predetermined spreading code, and broadcast the spread probe request message, and may receive and thereby de-spread a wireless signal and verify whether a neighboring wireless device is present using a probe response message when the probe response message is included in the de-spread wireless signal.
Abstract translation: 提供一种用于搜索相邻设备的无线设备和方法，其中无线设备可以使用预定的扩展码扩展用于搜索相邻无线设备的探测请求消息，并广播扩展探测请求消息，并且可以接收并由此de - 当探测器响应消息包括在解扩展无线信号中时，展开无线信号并使用探测响应消息来验证相邻无线设备是否存在。
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公开(公告)号：US10812175B2
公开(公告)日：2020-10-20
申请号：US16450943
申请日：2019-06-24
Inventor： Kap Seok Chang , Hyoung Jin Kwon , Sung Geun Jin , Yong Sun Kim , Seung Eun Hong , Woo Yong Lee , Hyun Kyu Chung
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.
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公开(公告)号：US10320466B2
公开(公告)日：2019-06-11
申请号：US15244046
申请日：2016-08-23
Inventor： Juyul Lee , Myung Don Kim , Jinup Kim , Hyun Kyu Chung , Minuk Kim , Jubum Kim , Eun Ae Lee , Joon Ho Cho
Abstract: Disclosed are an apparatus and a method for estimating a parameter of a multi path signal. The apparatus for estimating a parameter of a multi path signal includes: a plurality of pre-processing units configured to pre-process respective reception signals received through a plurality of antennas; a plurality of parameter converting units configured to approximate a parameter set of the respective pre-processed reception signals to have a sparse characteristic in a Doppler frequency and angle of arrival domain; and a parameter estimating unit configured to estimate an angle of arrival for a plurality of reception signals in each frequency region of the Doppler frequency and angle of arrival domain.
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15.发明授权Packet transmission/reception method and apparatus in wireless communication system 有权无线通信系统中的分组发送/接收方法和装置公开(公告)号：US09118426B2
公开(公告)日：2015-08-25
申请号：US13902607
申请日：2013-05-24
Inventor： Yun Joo Kim , Sok-Kyu Lee , Hyun Kyu Chung
CPC classification number: H04H20/42 , H04L12/189 , H04L69/324 , H04W28/06
Abstract: A method for simultaneously transmitting packets to one or more users in a wireless communication system includes: generating the packets which include length information and are to be transmitted to the one or more users; and simultaneously transmitting the generated packets to the one or more users. The length information includes information representing a unit of the length information and information representing lengths of the packets according to the unit.
Abstract translation: 一种用于在无线通信系统中同时向一个或多个用户发送分组的方法包括：生成包括长度信息并将被发送给一个或多个用户的分组; 同时将生成的分组发送到一个或多个用户。 长度信息包括表示长度信息的单位的信息和表示根据该单元的分组的长度的信息。
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Patent Agency Ranking
16.发明授权Method and apparatus for allocating sequence to synchronization channel for node identification in wireless communication system 有权用于在无线通信系统中为节点识别的同步信道分配序列的方法和装置公开(公告)号：US09065599B2
公开(公告)日：2015-06-23
申请号：US14269440
申请日：2014-05-05
Inventor： Kapseok Chang , Young-Hoon Kim , Woo Yong Lee , Hyun Kyu Chung
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。
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公开(公告)号：US11411636B2
公开(公告)日：2022-08-09
申请号：US17021030
申请日：2020-09-15
Inventor： Kap Seok Chang , Hyoung Jin Kwon , Sung Geun Jin , Yong Sun Kim , Seung Eun Hong , Woo Yong Lee , Hyun Kyu Chung
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.
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公开(公告)号：US10159015B2
公开(公告)日：2018-12-18
申请号：US15790644
申请日：2017-10-23
Inventor： Kyeongpyo Kim , Seung Eun Hong , Woo Yong Lee , Hyun Kyu Chung
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.
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公开(公告)号：US09801097B2
公开(公告)日：2017-10-24
申请号：US14925208
申请日：2015-10-28
Inventor： Kyeongpyo Kim , Seung Eun Hong , Woo Yong Lee , Hyun Kyu Chung
CPC classification number: H04W28/26 , H04W16/28 , H04W72/082 , H04W72/1231
Abstract: A method of allocating time for a communication device includes receiving a request for allocation of a second time period related to a second communication link, after allocating a first time period related to a first communication link, and reserving the portion of the second period overlapping the first period, wherein the first link is generated between first and second communication devices, and the second link is generated between third and fourth communication devices. A further aspect of the method includes identifying the first period reserved in advance, and receiving the request for allocating the second period, and allocating the second period to spatially overlap the first time period. A further aspect of the method includes identifying an existing reservation for the first period of the first link, receiving a new reservation for the second period, and allocating the second period to spatially overlap the first period.
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公开(公告)号：US09743291B2
公开(公告)日：2017-08-22
申请号：US15012333
申请日：2016-02-01
Inventor： Sung-Geun Jin , Jin Kyeong Kim , Woo Yong Lee , Hyun Kyu Chung
CPC classification number: H04W24/02 , H04L5/0073 , H04W72/1231 , H04W72/1263 , H04W72/1284 , H04W72/1289
Abstract: A scheduling method of giving a chance for transmission to a plurality of terminals in the same time period, and a device therefor are provided. The scheduling method includes: transmitting first scheduling information to terminals in a network, the first scheduling information defining transmitting/receiving terminals and a transmission time period; receiving channel measurement information including inter-terminal interference information from the terminals in the network; and generating second scheduling information defining transmission time periods and a plurality of transmitting/receiving terminals that do not interfere with each other by using the channel measurement information.
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