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).
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Patent number: 11057879Abstract: 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: GrantFiled: March 29, 2017Date of Patent: July 6, 2021Assignee: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCHInventors: Sumei Sun, Ernest Kurniawan, Ho Huat Peh, Peng Hui Tan, Koichi Adachi, Jin Gon Joung
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Patent number: 11025370Abstract: 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: GrantFiled: January 18, 2018Date of Patent: June 1, 2021Assignee: CHUNG ANG UNIVERSITY INDUSTRY ACADEMIC COOPERATION FOUNDATIONInventor: Jin Gon Joung
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Publication number: 20200235858Abstract: 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: ApplicationFiled: January 18, 2018Publication date: July 23, 2020Inventor: Jin Gon JOUNG
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Patent number: 10470179Abstract: 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: GrantFiled: February 23, 2016Date of Patent: November 5, 2019Assignee: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCHInventors: Koichi Adachi, Jin Gon Joung, Yuan Zhou, Sumei Sun
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Publication number: 20190124648Abstract: 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: ApplicationFiled: March 29, 2017Publication date: April 25, 2019Inventors: Sumei SUN, Ernest KURNIAWAN, Ho Huat PEH, Peng Hui TAN, Koichi ADACHI, Jin Gon JOUNG
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Patent number: 8351531Abstract: 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: GrantFiled: June 25, 2008Date of Patent: January 8, 2013Assignees: Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and TechnologyInventors: Tak-Ki Yu, Yung-Soo Kim, Myeon-Kyun Cho, Jae-Yeun Yun, Yong-Hoon Lee, Jin-Gon Joung, Won-Yong Shin
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Publication number: 20120294202Abstract: 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: ApplicationFiled: January 17, 2011Publication date: November 22, 2012Inventors: Jin Gon Joung, Sumei Sun
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Patent number: 8243840Abstract: 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: GrantFiled: February 7, 2007Date of Patent: August 14, 2012Assignees: 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
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Patent number: 8184737Abstract: 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: GrantFiled: June 12, 2008Date of Patent: May 22, 2012Assignee: Korea Advanced Institute of Science and TechnologyInventors: Yong-Hoon Lee, Jin-Gon Joung, Eui-Rim Jeong
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Patent number: 8027396Abstract: 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: GrantFiled: December 28, 2007Date of Patent: September 27, 2011Assignees: Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and TechnologyInventors: Young-Ho Jung, Myeon-Kyun Cho, Jin-Gon Joung, Yong-Hoon Lee
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Patent number: 8014360Abstract: 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: GrantFiled: November 16, 2007Date of Patent: September 6, 2011Assignees: Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and TechnologyInventors: Yu-Seok Kim, In-Soo Hwang, Jin-Gon Joung, Yong-Hoon Lee, Kyung-Min Kim, Yong-Up Jang
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Patent number: 7830840Abstract: 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: GrantFiled: April 25, 2007Date of Patent: November 9, 2010Assignees: Samsung Electronics Co., Ltd, Korea Advanced Institute of Science and TechnologyInventors: Young-Ho Jung, Cheol-Woo You, Dong-Ho Kim, Yong-Up Jang, Jin-Gon Joung, Yong-Hoon Lee
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Patent number: 7630463Abstract: 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: GrantFiled: November 15, 2005Date of Patent: December 8, 2009Assignees: Samsung Electronics Co., Ltd., Korea Advanced Institute of Science & TechnologyInventors: Won-Yong Shin, Young-Ho Jung, Chan-Soo Hwang, Yong-Hoon Lee, Jin-Gon Joung
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Publication number: 20090135945Abstract: 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: ApplicationFiled: June 12, 2008Publication date: May 28, 2009Applicant: Korea Advanced Institute of Science and TechnologyInventors: Yong-Hoon LEE, Jin-Gon Joung, Eui-Rim Jeong
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Patent number: 7508891Abstract: 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: GrantFiled: July 14, 2005Date of Patent: March 24, 2009Assignees: 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
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Publication number: 20090003416Abstract: 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: ApplicationFiled: June 25, 2008Publication date: January 1, 2009Applicants: Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and TechnologyInventors: Tak-Ki Yu, Yung-Soo Kim, Myeon-Kyun Cho, Jae-Yeun Yun, Yong-Hoon Lee, Jin-Gon Joung, Won-Yong Shin
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Publication number: 20080159426Abstract: 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: ApplicationFiled: December 28, 2007Publication date: July 3, 2008Applicants: 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
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Publication number: 20080117815Abstract: 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: ApplicationFiled: November 16, 2007Publication date: May 22, 2008Applicants: SAMSUNG ELECTRONICS Co., LTD, KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Yu-Seok Kim, In-Soo Hwang, Jin-Gon Joung, Yong-Hoon Lee, Kyung-Min Kim, Yong-Up Jang
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Publication number: 20070259694Abstract: 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: ApplicationFiled: April 25, 2007Publication date: November 8, 2007Applicants: SAMSUNG ELECTRONICS CO., LTD., Korea Advanced Institute of Science and TechnologyInventors: Young-Ho Jung, Cheol-Woo You, Dong-Ho Kim, Yong-Up Jang, Jin-Gon Joung, Yong-Hoon Lee
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Publication number: 20070201576Abstract: 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: ApplicationFiled: February 7, 2007Publication date: August 30, 2007Applicants: 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