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公开(公告)号：US10485030B2
公开(公告)日：2019-11-19
申请号：US15802682
申请日：2017-11-03
Inventor： Bing Hui , Yeong Jin Kim , Il Gyu Kim , Jun Hwan Lee , Hee Sang Chung
Abstract: A method and a terrestrial base station for receiving an uplink signal. The terrestrial base station is configured to: receive a preamble corresponding to an orthogonal pseudo-noise (PN) sequence of a plurality of the orthogonal PN sequences from an onboard base station in a train; recognize identification (ID) of the onboard base station from the preamble, and allocate a temporary network ID and an uplink grant (UL grant) to the onboard base station; and receive the uplink signal transmitted based on the temporary network ID and the UL grant.
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公开(公告)号：US20180159604A1
公开(公告)日：2018-06-07
申请号：US15831539
申请日：2017-12-05
Inventor： Seuck Ho Won , Yeong Jin Kim , Il Gyu Kim
IPC: H04B7/0456 , H04B7/04 , H04B7/024
CPC classification number: H04B7/0456 , H04B7/024 , H04B7/0417 , H04B7/043 , H04W28/06
Abstract: A method and an apparatus for transmitting a signal by using a plurality of radio units (RUs) to a user equipment (UE). The apparatus is configured to: determine an RU set including at least two RUs of the plurality of the RUs based on a feedback regarding a received strength of a transmission beam formed by the plurality of the RUs, wherein the feedback is received from the UE; determine a distributed precoding matrix of which a diversity order is predetermined based on information about an RU included in the RU set; and perform a precoding based on the distributed precoding matrix and transmitting a precoded signal to the UE through the RU set.
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公开(公告)号：US09602770B2
公开(公告)日：2017-03-21
申请号：US14669227
申请日：2015-03-26
Inventor： In Ki Hwang , Do Young Kim , Yeong Jin Kim
CPC classification number: H04N7/152 , H04L65/1066 , H04L65/1073 , H04L65/403
Abstract: Provided is a method of supporting a videoconference between clients through a plurality of media servers under the control of a management server. The method includes requesting a client change, from a first client connected to a first media server, to a second client to be connected to a second media server; generating a mirror session for the second client according to the request for the client change; and stopping a session for the first client.
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公开(公告)号：USRE49078E1
公开(公告)日：2022-05-17
申请号：US15586292
申请日：2017-05-04
Inventor： Jae Heung Kim , Kyoung Seok Lee , Kook Jin Lee , Jae Young Ahn , Yeong Jin Kim
Abstract: Provided is a method and apparatus that may control a configuration and operation of a network including a base station to support a multicast and broadcast multimedia service in a cellular system and may control an operation of a terminal and the like, and thus, may effectively provide a multimedia service in the cellular system.
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Patent Agency Ranking
5.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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6.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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公开(公告)号：US09763161B2
公开(公告)日：2017-09-12
申请号：US14609482
申请日：2015-01-30
Inventor： Don Sung Oh , Ho Young Song , Yeong Jin Kim
CPC classification number: H04W36/32 , H04W36/04 , H04W64/006
Abstract: The present invention provides a terminal connection control apparatus, including: a cell position determining unit which provides information on a cell in which a terminal is located; a requested data speed determining unit which figures out a data speed requested by the terminal; and a connection cell control unit which controls a connection cell of the terminal based on cell position information and the requested data speed.
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公开(公告)号：US10454543B2
公开(公告)日：2019-10-22
申请号：US15831539
申请日：2017-12-05
Inventor： Seuck Ho Won , Yeong Jin Kim , Il Gyu Kim
IPC: H04B7/0456 , H04B7/024 , H04B7/0426 , H04B7/0417 , H04W28/06
Abstract: A method and an apparatus for transmitting a signal by using a plurality of radio units (RUs) to a user equipment (UE). The apparatus is configured to: determine an RU set including at least two RUs of the plurality of the RUs based on a feedback regarding a received strength of a transmission beam formed by the plurality of the RUs, wherein the feedback is received from the UE; determine a distributed precoding matrix of which a diversity order is predetermined based on information about an RU included in the RU set; and perform a precoding based on the distributed precoding matrix and transmitting a precoded signal to the UE through the RU set.
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公开(公告)号：US10117190B2
公开(公告)日：2018-10-30
申请号：US15628754
申请日：2017-06-21
Inventor： Gosan Noh , Yeong Jin Kim , Il Gyu Kim
Abstract: In a wireless communication system in which a plurality of base stations each forming a directional beam in one direction are disposed along a predetermined path, each base station estimates a distance from installed in a mobile body moving along the path if the TE enters a cell area of the corresponding base station; and controls the transmission power using a distance from the estimated TE so that a difference between received signal strength of the corresponding base station and the received signal strength of neighboring base stations measured by the TE in a cell boundary area between the base stations does not exceed a predetermined threshold value.
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