Patents by Inventor Yeong-Jin Kim

Yeong-Jin Kim has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10485030
    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.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: November 19, 2019
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Bing Hui, Yeong Jin Kim, Il Gyu Kim, Jun Hwan Lee, Hee Sang Chung
  • Patent number: 10454543
    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.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: October 22, 2019
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Seuck Ho Won, Yeong Jin Kim, Il Gyu Kim
  • Patent number: 10362530
    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.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: July 23, 2019
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Bing Hui, Junhyeong Kim, Yeong Jin Kim, Il Gyu Kim, Hee Sang Chung
  • Patent number: 10349448
    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.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: July 9, 2019
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Bing Hui, Junhyeong Kim, Yeong Jin Kim, Il Gyu Kim, Hee Sang Chung
  • Patent number: 10117190
    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.
    Type: Grant
    Filed: June 21, 2017
    Date of Patent: October 30, 2018
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Gosan Noh, Yeong Jin Kim, Il Gyu Kim
  • Publication number: 20180227734
    Abstract: A proximity communication method and apparatus using a link adaptation. A transmitter establishes a link that is configured using a channel aggregation by performing an association with a receiver, and performs a link adaptation that changes the channel aggregation with respect to the link in response to transmitting data to the receiver using the link.
    Type: Application
    Filed: February 7, 2018
    Publication date: August 9, 2018
    Inventors: Jae Seung LEE, Moon-Sik LEE, Yeong Jin KIM, Young-Hoon KIM, Hoo Sung LEE
  • Publication number: 20180159604
    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.
    Type: Application
    Filed: December 5, 2017
    Publication date: June 7, 2018
    Inventors: Seuck Ho Won, Yeong Jin Kim, Il Gyu Kim
  • Publication number: 20180132283
    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.
    Type: Application
    Filed: November 3, 2017
    Publication date: May 10, 2018
    Inventors: Bing HUI, Yeong Jin KIM, Il Gyu KIM, Jun Hwan LEE, Hee Sang CHUNG
  • Publication number: 20180015854
    Abstract: Disclosed is a vehicle seat structure. The seat structure includes a seatback rotatably provided, an armrest bracket rotatably provided to the seatback, and a link member having an upper end and a lower end, wherein the upper end is hinge-coupled to the armrest bracket such that the upper end is spaced apart a distance from a rotary axis of the armrest bracket, and the lower end is hinge-coupled to a mounting member such that the lower end is spaced apart a distance from a rotary axis of the seatback, so as to allow the armrest bracket to be rotated to restrict a longitudinal direction of the armrest relative to a horizontal direction from being varied during the rotation of the seatback.
    Type: Application
    Filed: July 18, 2017
    Publication date: January 18, 2018
    Applicant: HYUNDAI DYMOS INCORPORATED
    Inventors: Hyeok SONG, Yeong Jin KIM, Man Seock KIM
  • Publication number: 20170367053
    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.
    Type: Application
    Filed: June 21, 2017
    Publication date: December 21, 2017
    Inventors: Gosan NOH, Yeong Jin KIM, Il Gyu KIM
  • Publication number: 20170353953
    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.
    Type: Application
    Filed: May 31, 2017
    Publication date: December 7, 2017
    Inventors: Bing HUI, Junhyeong KIM, Yeong Jin KIM, Il Gyu KIM, Hee Sang CHUNG
  • Publication number: 20170332418
    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.
    Type: Application
    Filed: May 12, 2017
    Publication date: November 16, 2017
    Inventors: Bing HUI, Junhyeong KIM, Yeong Jin KIM, Il Gyu KIM, Hee Sang CHUNG
  • Patent number: 9763161
    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.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: September 12, 2017
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Don Sung Oh, Ho Young Song, Yeong Jin Kim
  • Patent number: 9602770
    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.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: March 21, 2017
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: In Ki Hwang, Do Young Kim, Yeong Jin Kim
  • Publication number: 20170038454
    Abstract: Provided is a method for estimating a signal generation position based on signal strength, including: measuring a first signal strength which is a strength of a signal propagated from a generation position of the signal at a first measurement point; measuring a second signal strength which is a strength of the signal propagated from the generation position of the signal at a second measurement point distinguished from the first measurement point; calculating an attenuation constant of a medium to which the signal is propagated from the generation position up to the first measurement point and the second measurement point; and estimating the generation position by using the first signal strength, the second signal strength, and the attenuation constant, wherein the first measurement point, the second measurement point, and the generation position are present on one straight line. This method can be extended to estimate a signal generation point in 2D plane or 3D space.
    Type: Application
    Filed: August 5, 2016
    Publication date: February 9, 2017
    Inventors: Keun Young KIM, Yeong Jin KIM, Seung Chan BANG, Moon Sik LEE, Sang Ho LEE, Jun Hwan LEE
  • Publication number: 20160295501
    Abstract: Disclosed is a method for providing a community service based on proximity, the method including: searching for an access point (AP) provided at a specific place and having a wireless LAN identifier assigned for the event through a wireless terminal of the host, and requesting a connection to a network by inputting a security key; when the request is accepted, generating, by a service platform receiving information about the generation of the community, a community for the event through an application installed in the wireless terminal of the host, and transmitting a community ID specifying the community for the event to the application; transmitting a request for participation in the community for the event to the service platform together with participant information input through the application and the community ID; and when the request for the participation is accepted in the service platform, transmitting a participant ID to the application.
    Type: Application
    Filed: March 29, 2016
    Publication date: October 6, 2016
    Inventors: Young Il CHOI, Sang Ho LEE, Hyun Joo BAE, Yeong Jin KIM
  • Publication number: 20150288925
    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.
    Type: Application
    Filed: March 26, 2015
    Publication date: October 8, 2015
    Inventors: In Ki HWANG, Do Young KIM, Yeong Jin KIM
  • Publication number: 20150230148
    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.
    Type: Application
    Filed: January 30, 2015
    Publication date: August 13, 2015
    Inventors: Don Sung OH, Ho Young SONG, Yeong Jin KIM
  • Publication number: 20150195764
    Abstract: Disclosed is a network service system including a terminal selectively providing packets of an information centric networking (ICN) protocol and an Internet protocol, a smart digital unit (DU) identifying whether the packets provided from the terminal correspond to an ICN protocol packet or an Internet protocol packet to transfer the packets through different paths depending on a type of the identified packet, and an ICN node receiving the ICN protocol packet from the smart DU to provide contents.
    Type: Application
    Filed: January 7, 2015
    Publication date: July 9, 2015
    Inventors: Hyung Seok CHUNG, Ho Young SONG, Don Sung OH, Kyung Gyu CHUN, Yeong Jin KIM, Ho Yong RYU, Chie Teuk AHN
  • Patent number: 9025520
    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.
    Type: Grant
    Filed: April 23, 2010
    Date of Patent: May 5, 2015
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jae Heung Kim, Kyoung Seok Lee, Kook Jin Lee, Jae Young Ahn, Yeong Jin Kim