Patents by Inventor Jin-Gon Joung

Jin-Gon Joung 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: 11057879
    Abstract: A system for controlling a network is provided. The system may include a circuit configured to provide interface support to a plurality of remote radio heads. Each remote radio head may support multiple radio access technologies. The system may include a controller configured to control the circuit and the plurality of remote radio heads. The controller may be configured to control the circuit and the plurality of remote radio heads based on statistical information inferred from the data traversing through the circuit and the real time network state information of the network. The circuit may be connected to each remote radio head of the plurality of remote radio heads via one or more respective fronthaul links.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: July 6, 2021
    Assignee: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH
    Inventors: Sumei Sun, Ernest Kurniawan, Ho Huat Peh, Peng Hui Tan, Koichi Adachi, Jin Gon Joung
  • Patent number: 11025370
    Abstract: A space-time line coding system includes: in multiple antenna communication configured by at least one transmission antenna and at least two reception antennas, a transmitting end which encodes two information symbols using channel state information and sequentially transmits two encoded information symbols to a receiving end using the at least one transmission antenna; and a receiving end which receives two encoded information symbols using at least the two reception antennas and combines the received signals without channel state information.
    Type: Grant
    Filed: January 18, 2018
    Date of Patent: June 1, 2021
    Assignee: CHUNG ANG UNIVERSITY INDUSTRY ACADEMIC COOPERATION FOUNDATION
    Inventor: Jin Gon Joung
  • Publication number: 20200235858
    Abstract: A space-time line coding system includes: in multiple antenna communication configured by at least one transmission antenna and at least two reception antennas, a transmitting end which encodes two information symbols using channel state information and sequentially transmits two encoded information symbols to a receiving end using the at least one transmission antenna; and a receiving end which receives two encoded information symbols using at least the two reception antennas and combines the received signals without channel state information.
    Type: Application
    Filed: January 18, 2018
    Publication date: July 23, 2020
    Inventor: Jin Gon JOUNG
  • Patent number: 10470179
    Abstract: According to various embodiments, a radio communication method may be provided. The radio communication method may include: determining in a cell at least one first subframe; determining in the cell at least one second subframe; allocating downlink user traffic in the cell during the first subframe with a low priority; and transmitting a handover command to a user equipment based on the second subframe.
    Type: Grant
    Filed: February 23, 2016
    Date of Patent: November 5, 2019
    Assignee: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH
    Inventors: Koichi Adachi, Jin Gon Joung, Yuan Zhou, Sumei Sun
  • Publication number: 20190124648
    Abstract: A system for controlling a network is provided. The system may include a circuit configured to provide interface support to a plurality of remote radio heads. Each remote radio head may support multiple radio access technologies. The system may include a controller configured to control the circuit and the plurality of remote radio heads. The controller may be configured to control the circuit and the plurality of remote radio heads based on statistical information inferred from the data traversing through the circuit and the real time network state information of the network. The circuit may be connected to each remote radio head of the plurality of remote radio heads via one or more respective fronthaul links.
    Type: Application
    Filed: March 29, 2017
    Publication date: April 25, 2019
    Inventors: Sumei SUN, Ernest KURNIAWAN, Ho Huat PEH, Peng Hui TAN, Koichi ADACHI, Jin Gon JOUNG
  • Patent number: 8351531
    Abstract: An apparatus and a method for canceling interference using a space-frequency block coding in a multi-antenna system. The method includes confirming a code for coding to minimize a Pairwise Error Probability (PEP) of a transmit signal of which the PEP is maximized according to a time variation; and coding the transmit signal with the code and transmitting the coded signal via at least two antennas. Accordingly, the interference cancellation can be accomplished while lowering the complexity of the receiver without degrading the spectral efficiency.
    Type: Grant
    Filed: June 25, 2008
    Date of Patent: January 8, 2013
    Assignees: Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and Technology
    Inventors: Tak-Ki Yu, Yung-Soo Kim, Myeon-Kyun Cho, Jae-Yeun Yun, Yong-Hoon Lee, Jin-Gon Joung, Won-Yong Shin
  • Publication number: 20120294202
    Abstract: A method of communication comprising: at time=t: a first multiple antenna relay node decoding and forwarding a first STBC coded signal from a source node, and a first decoded and forwarded STBC signal from a second multiple antenna relay node, and a destination DSTTD receiver decoding the first STBC coded signal from the source node, and the first decoded and forwarded STBC signal from the second multiple antenna relay node; at time=t+1: the second multiple antenna relay node receiving a second STBC coded signal from the source node, and a second decoded and forwarded signal from the first multiple antenna relay node, and the destination DSTTD receiver decoding the second STBC coded signal from the source node, and the second decoded and forwarded signal from the first multiple antenna relay node.
    Type: Application
    Filed: January 17, 2011
    Publication date: November 22, 2012
    Inventors: Jin Gon Joung, Sumei Sun
  • Patent number: 8243840
    Abstract: Provided are a system and a method for transmitting/receiving data in a communication system. The method includes calculating a processing matrix of a transmission unit for transmitting data, a processing matrix of a reception unit for receiving the data, a channel matrix formed by a plurality of transmission antennas and a plurality of reception antennas, and a parameter of the transmission data, when the data to be transmitted to the plurality of reception antennas via the plurality of transmission antennas is generated; determining a minimum value of a Minimum Mean Square Error (MMSE) according to the calculated matrixes and parameter; and transmitting/receiving the data using an MMSE multiplexing scheme based on the determined minimum MMSE value.
    Type: Grant
    Filed: February 7, 2007
    Date of Patent: August 14, 2012
    Assignees: Samsung Electronics Co., Ltd, Korea Advanced Institute of Science & Technology (KAIST)
    Inventors: In-Soo Hwang, Cheol-Woo You, Jin-Gon Joung, Yong-Hoon Lee, Yong-Up Jang, Won-Yong Shin
  • Patent number: 8184737
    Abstract: Disclosed herein is an echo cancellation and echo channel estimation system that can relay transmit signals without interference with echo signals by canceling the undesired echo signals received by a relay. The echo cancellation and echo channel estimation system is designed to relay signals between a transmitter and a receiver through a relay using multiple antennas. The echo cancellation and echo channel estimation system includes a receive antenna, a preprocessing vector generation module, an echo cancellation module, and a transmit array antenna. The receive antenna receives a transmit signal from the transmitter and an echo signal via an echo channel. The preprocessing vector generation module generates a preprocessing vector and applies the preprocessing vector, the transmit signal and the echo signal, received from the receive antenna, to the echo cancellation module.
    Type: Grant
    Filed: June 12, 2008
    Date of Patent: May 22, 2012
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Yong-Hoon Lee, Jin-Gon Joung, Eui-Rim Jeong
  • Patent number: 8027396
    Abstract: Disclosed is an apparatus and a method for signal transmission and reception according to a pre-processing scheme in a MIMO mobile communication system. The method includes: inputting a symbol; and pre-processing the input symbol according to a pre-processing matrix corresponding to pre-processing matrix information and transmitting the pre-processed symbol through a corresponding transmission antenna, wherein the pre-processing matrix is determined in accordance with a number of transmission antennas and a rate used in the MIMO mobile communication system.
    Type: Grant
    Filed: December 28, 2007
    Date of Patent: September 27, 2011
    Assignees: Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and Technology
    Inventors: Young-Ho Jung, Myeon-Kyun Cho, Jin-Gon Joung, Yong-Hoon Lee
  • Patent number: 8014360
    Abstract: An apparatus and method for performing sequential scheduling in a multiple-input, multiple-output (MIMO) system is provided. The method includes the steps of: selecting a user which reports the greatest partial feedback information among a plurality of pieces of partial feedback information of all users in an initialization operation, and requesting channel feedback information to the selected user; and broadcasting the channel feedback information of the selected user to remaining unselected users upon receiving the channel feedback information from the selected user. Accordingly, a maximum capacity can be obtained by using only selective channel feedback information without having to feed back channel state information of all users.
    Type: Grant
    Filed: November 16, 2007
    Date of Patent: September 6, 2011
    Assignees: Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and Technology
    Inventors: Yu-Seok Kim, In-Soo Hwang, Jin-Gon Joung, Yong-Hoon Lee, Kyung-Min Kim, Yong-Up Jang
  • Patent number: 7830840
    Abstract: An apparatus and method for implementing SDMA in a multi-user multi-antenna system are provided, in which SDMA users are selected from among total users according to channel state information of the total users, and the number of transmission streams to be allocated to each of the SDMA users is determined by a tree search method.
    Type: Grant
    Filed: April 25, 2007
    Date of Patent: November 9, 2010
    Assignees: Samsung Electronics Co., Ltd, Korea Advanced Institute of Science and Technology
    Inventors: Young-Ho Jung, Cheol-Woo You, Dong-Ho Kim, Yong-Up Jang, Jin-Gon Joung, Yong-Hoon Lee
  • Patent number: 7630463
    Abstract: Disclosed is a method for acquiring synchronization in a mobile communication system using an Orthogonal Frequency Division Multiplexing (OFDM) scheme. The method includes modeling a power delay profile in time-varying frequency selective fading channel conditions by a specific function; detecting a log probability distribution function of a timing offset and a frequency offset in consideration of a correlation between a received signal and the received multi-path signal in the time-varying frequency selective fading channel conditions having the power delay profile modeled as the specific function; and estimating a timing offset and a frequency offset which maximize the log probability distribution function of the timing offset and the frequency offset.
    Type: Grant
    Filed: November 15, 2005
    Date of Patent: December 8, 2009
    Assignees: Samsung Electronics Co., Ltd., Korea Advanced Institute of Science & Technology
    Inventors: Won-Yong Shin, Young-Ho Jung, Chan-Soo Hwang, Yong-Hoon Lee, Jin-Gon Joung
  • Publication number: 20090135945
    Abstract: Disclosed herein is an echo cancellation and echo channel estimation system that can relay transmit signals without interference with echo signals by canceling the undesired echo signals received by a relay. The echo cancellation and echo channel estimation system is designed to relay signals between a transmitter and a receiver through a relay using multiple antennas. The echo cancellation and echo channel estimation system includes a receive antenna, a preprocessing vector generation module, an echo cancellation module, and a transmit array antenna. The receive antenna receives a transmit signal from the transmitter and an echo signal via an echo channel. The preprocessing vector generation module generates a preprocessing vector and applies the preprocessing vector, the transmit signal and the echo signal, received from the receive antenna, to the echo cancellation module.
    Type: Application
    Filed: June 12, 2008
    Publication date: May 28, 2009
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Yong-Hoon LEE, Jin-Gon Joung, Eui-Rim Jeong
  • Patent number: 7508891
    Abstract: In a method for feeding back combination information of transmitted signals in a multiple-input multiple-output (MIMO) system using a multiple space-time block coding technique, mean square error values are computed in relation to the combination information pieces of the transmitted signals. An index of a combination having a minimum mean square error value from among the mean square error values is fed back.
    Type: Grant
    Filed: July 14, 2005
    Date of Patent: March 24, 2009
    Assignees: Samsung Electronics Co., Ltd., Korea Advanced Institute of Technology (KAIST)
    Inventors: Young-Ho Jung, Seung-Hoon Nam, Yong-Hoon Lee, Jin-Gon Joung, Woo-Seok Nam, Woo-Hyuk Chang
  • Publication number: 20090003416
    Abstract: An apparatus and a method for canceling interference using a space-frequency block coding in a multi-antenna system. The method includes confirming a code for coding to minimize a Pairwise Error Probability (PEP) of a transmit signal of which the PEP is maximized according to a time variation; and coding the transmit signal with the code and transmitting the coded signal via at least two antennas. Accordingly, the interference cancellation can be accomplished while lowering the complexity of the receiver without degrading the spectral efficiency.
    Type: Application
    Filed: June 25, 2008
    Publication date: January 1, 2009
    Applicants: Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and Technology
    Inventors: Tak-Ki Yu, Yung-Soo Kim, Myeon-Kyun Cho, Jae-Yeun Yun, Yong-Hoon Lee, Jin-Gon Joung, Won-Yong Shin
  • Publication number: 20080159426
    Abstract: Disclosed is an apparatus and a method for signal transmission and reception according to a pre-processing scheme in a MIMO mobile communication system. The method includes: inputting a symbol; and pre-processing the input symbol according to a pre-processing matrix corresponding to pre-processing matrix information and transmitting the pre-processed symbol through a corresponding transmission antenna, wherein the pre-processing matrix is determined in accordance with a number of transmission antennas and a rate used in the MIMO mobile communication system.
    Type: Application
    Filed: December 28, 2007
    Publication date: July 3, 2008
    Applicants: Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and Technology (KAIST)
    Inventors: Young-Ho Jung, Myeon-Kyun Cho, Jin-Gon Joung, Yong-Hoon Lee
  • Publication number: 20080117815
    Abstract: An apparatus and method for performing sequential scheduling in a multiple-input, multiple-output (MIMO) system is provided. The method includes the steps of: selecting a user which reports the greatest partial feedback information among a plurality of pieces of partial feedback information of all users in an initialization operation, and requesting channel feedback information to the selected user; and broadcasting the channel feedback information of the selected user to remaining unselected users upon receiving the channel feedback information from the selected user. Accordingly, a maximum capacity can be obtained by using only selective channel feedback information without having to feed back channel state information of all users.
    Type: Application
    Filed: November 16, 2007
    Publication date: May 22, 2008
    Applicants: SAMSUNG ELECTRONICS Co., LTD, KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Yu-Seok Kim, In-Soo Hwang, Jin-Gon Joung, Yong-Hoon Lee, Kyung-Min Kim, Yong-Up Jang
  • Publication number: 20070259694
    Abstract: An apparatus and method for implementing SDMA in a multi-user multi-antenna system are provided, in which SDMA users are selected from among total users according to channel state information of the total users, and the number of transmission streams to be allocated to each of the SDMA users is determined by a tree search method.
    Type: Application
    Filed: April 25, 2007
    Publication date: November 8, 2007
    Applicants: SAMSUNG ELECTRONICS CO., LTD., Korea Advanced Institute of Science and Technology
    Inventors: Young-Ho Jung, Cheol-Woo You, Dong-Ho Kim, Yong-Up Jang, Jin-Gon Joung, Yong-Hoon Lee
  • Publication number: 20070201576
    Abstract: Provided are a system and a method for transmitting/receiving data in a communication system. The method includes calculating a processing matrix of a transmission unit for transmitting data, a processing matrix of a reception unit for receiving the data, a channel matrix formed by a plurality of transmission antennas and a plurality of reception antennas, and a parameter of the transmission data, when the data to be transmitted to the plurality of reception antennas via the plurality of transmission antennas is generated; determining a minimum value of a Minimum Mean Square Error (MMSE) according to the calculated matrixes and parameter; and transmitting/receiving the data using an MMSE multiplexing scheme based on the determined minimum MMSE value.
    Type: Application
    Filed: February 7, 2007
    Publication date: August 30, 2007
    Applicants: SAMSUNG ELECTRONICS CO., LTD., Korea Advanced Institute of Science and Technology (KAIST)
    Inventors: In-Soo Hwang, Cheol-Woo You, Jin-Gon Joung, Yong-Hoon Lee, Yong-Up Jang, Won-Yong Shin