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1.发明授权公开(公告)号：US10362530B2
公开(公告)日：2019-07-23
申请号：US15593501
申请日：2017-05-12
Inventor： Bing Hui , Junhyeong Kim , Yeong Jin Kim , Il Gyu Kim , Hee Sang Chung
Abstract: A radio unit (RU) in a directional communication network establishes a connection with a first antenna among two antennas of a first TE in a first moving object that first enters a serving duration of the RU according to a network access request from the first antenna, and when receiving the network access request from a second antenna among two antennas of a second TE in a second moving object that next enters the serving duration, the RU processes the network access request from the second antenna based on network access priority of the second antenna and network access priority of the first antenna to which the connection is established.
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2.发明申请METHOD OF RECEIVING DOWNLINK SIGNAL OF HIGH SPEED MOVING TERMINAL, ADAPTIVE COMMUNICATION METHOD AND ADAPTIVE COMMUNICATION APPARATUS IN MOBILE WIRELESS BACKHAUL NETWORK 审中-公开接收高速移动终端的下行信号的方法，自适应通信方法和移动无线对讲网络中的自适应通信设备公开(公告)号：US20160219539A1
公开(公告)日：2016-07-28
申请号：US15006362
申请日：2016-01-26
Inventor： Junhyeong Kim , Sung woo Choi
CPC classification number: H04W56/001 , H04W52/0206 , Y02D70/00 , Y02D70/142 , Y02D70/164
Abstract: Disclosed herein is an adaptive communication method of a base station in a moving wireless backhaul network, including: acquiring frame transmitting/receiving timings of a terminal; periodically searching for a terminal synchronous signal transmitted from the terminal; if the terminal synchronous signal is detected, estimating the frame transmitting/receiving timings of the base station to/from the terminal based on the terminal synchronous signal and the frame transmitting/receiving timings of the terminal; and transmitting the base station synchronous signal to the terminal based on the frame transmitting/receiving timings of the base station.
Abstract translation: 这里公开了移动无线回程网络中的基站的自适应通信方法，包括：获取终端的发送/接收定时; 周期性地搜索从终端发送的终端同步信号; 如果检测到终端同步信号，则基于终端同步信号和终端的帧发送/接收定时估计基站到终端的帧发送/接收定时; 以及基于所述基站的帧发送/接收定时向所述终端发送所述基站同步信号。
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公开(公告)号：US10609736B2
公开(公告)日：2020-03-31
申请号：US15934140
申请日：2018-03-23
Inventor： Bing Hui , Il Gyu Kim , Junhyeong Kim , Gosan Noh , Hee Sang Chung , Sung Woo Choi
Abstract: A method and an apparatus for transmitting a message used to access a base station (BS) in a random access (RA) procedure by user equipment (UE) are provided. The method includes: determining a first RA preamble resource corresponding to an SSB index which corresponds to a transmission beam among a plurality of transmission beams of BS; and transmitting a message 1 of the RA procedure by using a first RA preamble format which includes the first RA preamble resource and at least one second RA preamble resource which neighbors the first RA preamble resource.
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公开(公告)号：US10064145B2
公开(公告)日：2018-08-28
申请号：US15006362
申请日：2016-01-26
Inventor： Junhyeong Kim , Sung woo Choi
CPC classification number: H04W56/001 , H04W52/0206 , Y02D70/00 , Y02D70/142 , Y02D70/164
Abstract: Disclosed herein is an adaptive communication method of a base station in a moving wireless backhaul network, including: acquiring frame transmitting/receiving timings of a terminal; periodically searching for a terminal synchronous signal transmitted from the terminal; if the terminal synchronous signal is detected, estimating the frame transmitting/receiving timings of the base station to/from the terminal based on the terminal synchronous signal and the frame transmitting/receiving timings of the terminal; and transmitting the base station synchronous signal to the terminal based on the frame transmitting/receiving timings of the base station.
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公开(公告)号：US10484885B2
公开(公告)日：2019-11-19
申请号：US15595037
申请日：2017-05-15
Inventor： Junhyeong Kim , Bing Hui , Il Gyu Kim , Hoon Lee , Hyun Kyu Chung
Abstract: An apparatus and method for beam-forming communication in a mobile wireless backhaul network. The apparatus included in a base station includes: an antenna unit radiating a beam according to predetermined beam characteristics and transmitting a signal of the base station to a mobile terminal in a high speed moving body; a position searching unit detecting a distance, a speed, and a direction of movement between the base station and the mobile terminal; a beam setting unit grouping one or more beams according to the detected distance between the base station and the mobile terminal and setting the number of beam search groups in which a beam search is to be performed and a beam search period according to the detected speed and direction of movement; and a beam searching unit searching for the beam of the mobile terminal based on beam setting values set by the beam setting unit.
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Patent Agency Ranking
6.发明授权公开(公告)号：US10349448B2
公开(公告)日：2019-07-09
申请号：US15609748
申请日：2017-05-31
Inventor： Bing Hui , Junhyeong Kim , Yeong Jin Kim , Il Gyu Kim , Hee Sang Chung
Abstract: A method for transmitting and receiving a signal using steps of transmitting an uplink signal to a base station in a duration of an uplink pilot time slot (UpPTS) of a special subframe, and waiting for a guard time (GT) before receiving a downlink signal from the base station after the transmission of the uplink signal, and a terminal transmitting and receiving a signal by using the method.
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公开(公告)号：US10097395B2
公开(公告)日：2018-10-09
申请号：US15493870
申请日：2017-04-21
Inventor： Bing Hui , Junhyeong Kim , Il Gyu Kim , Hoon Lee , Hee Sang Chung , Sung woo Choi
IPC: H04L27/34
Abstract: A transmitting apparatus for modulating data based on a predetermined 2q-QAM constellation and a receiving apparatus and method for demodulating a signal based on the predetermined 2q-QAM constellation, wherein the last q-2 bits corresponding to a quadrant of the predetermined 2q-QAM constellation are same with a gray code of a 2q-2-QAM constellation, the last q-2 bits corresponding to the remaining quadrants of the predetermined 2q-QAM constellation are determined by performing symmetric transformation for the last q-2 bits of the quadrant of the predetermined 2q-QAM around the x-axis or the y-axis.
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公开(公告)号：US10542537B2
公开(公告)日：2020-01-21
申请号：US15652488
申请日：2017-07-18
Inventor： Junhyeong Kim , Bing Hui , Il Gyu Kim , Jun Hwan Lee , Hoon Lee , Hee Sang Chung
Abstract: A high speed moving terminal including first and second antennas each communicating with first and second radio units (RUs) of a base station distributedly installed in a mobile wireless backhaul network communicates with the first and second RUs, respectively, with different uplink-downlink configuration of the first RU and the second RU, and transmits control information of the corresponding downlink signal in an uplink subframe that comes first in the time domain after processing latency of a downlink signal received from the first RU among uplink frames with the uplink-downlink configurations of the first RU and the second RU if the downlink signal is received from the first RU through the first antenna.
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公开(公告)号：US09906339B2
公开(公告)日：2018-02-27
申请号：US14926348
申请日：2015-10-29
Inventor： Junhyeong Kim , Il Gyu Kim , Seung Chan Bang
IPC: H04W72/04 , H04L5/00 , H04W36/00 , H04B7/026 , H04L12/24 , H04W88/04 , H04W88/08 , H04W8/18 , H04L12/26
CPC classification number: H04L5/0035 , H04B7/026 , H04L41/0668 , H04L43/0811 , H04W8/186 , H04W36/00 , H04W88/04 , H04W88/08
Abstract: Disclosed is a method and apparatus for communication in a millimeter band communication system. In a case in which a first terminal obtains a list including members of a cooperative group in which terminals receive a service with the same beam as a first terminal's beam, the first terminal informs a second terminal, corresponding to a member of the list, of communication link failure when the failure occurs, and requests a cooperative service. After that, the first terminal receives information on the service from a base station through the second terminal.
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公开(公告)号：US20250141498A1
公开(公告)日：2025-05-01
申请号：US18935149
申请日：2024-11-01
Inventor： Sung woo Choi , Hee Sang Chung , Seon-Ae Kim , Junhyeong Kim
IPC: H04B7/04
Abstract: A beam updating method in a reconfigurable intelligent surface (RIS) is provided. The method includes: receiving data from a base station using a first polarization and receiving an RIS beamforming reference signal using a second polarization; fixing the reflection direction of the first polarization and sequentially changing the reflection direction of the second polarization to transmit reflected waves; and adjusting the direction of the second polarization based on optimal second polarization direction control information determined according to channel power values corresponding to the reflection direction of the second polarization.
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