Patents by Inventor Byung-Chang Chung

Byung-Chang Chung 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: 11082528
    Abstract: Provided is a matching system including a policy and rule processing unit configured to extract SC units for each application service required, combine the SC units, configure a transaction unit, and determine an amount to be charged for a transaction according to a charging rule; a matching processing unit configured to match the extracted SC units to NC units; and an NC combination processing unit configured to combine the NC units used for the matching and deliver the combination of the NC units and detailed operating conditions to the networking management system.
    Type: Grant
    Filed: February 10, 2020
    Date of Patent: August 3, 2021
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Kyung Hyu Lee, Hea Sook Park, Ki Won Kim, Byeong Sik Kim, Yoon Sik Yoo, Jong Kuk Lee, Hyung Kyu Lee, Jin Hyuk Yim, Ki Cheol Jeon, Byung Chang Chung, Boo Geum Jung
  • Patent number: 10904162
    Abstract: A system and method for selecting an optimal path in a multi-media multi-path network. The system for selecting an optimal path in a multi-media multi-path network includes a memory storing a program for selecting an optimal path in the multi-media multi-path network and a processor for executing the program, wherein the processor uses a network performance parameter, which serves as state information, as an input value of a reinforcement learning algorithm and selects an optimal path using a Q-table obtained by applying the reinforcement learning algorithm.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: January 26, 2021
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventor: Byung Chang Chung
  • Patent number: 10893542
    Abstract: A random access method in a beam division multiple access (BDMA) system including: receiving, by a terminal, a reference signal of at least one beam sector transmitted from an access point (AP) device; estimating, by the terminal, whether the terminal is in a center area of the beam sector provided by the AP device or in the boundary area of the beam sector by using the strength of the reference signal; transmitting, by the terminal, a different preamble to the AP device in accordance with location information of whether the terminal is located in the center area or in the boundary area; and determining, by the AP device, a target beam sector for transmitting information about uplink resources to be used by the terminal, among a plurality of beam sectors on the basis of the received preamble.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: January 12, 2021
    Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Dong Ho Cho, Byung Chang Chung, Dae Hee Park, Joon Sang Han, Yun Sik Kim
  • Publication number: 20200259924
    Abstract: Provided is a matching system including a policy and rule processing unit configured to extract SC units for each application service required, combine the SC units, configure a transaction unit, and determine an amount to be charged for a transaction according to a charging rule; a matching processing unit configured to match the extracted SC units to NC units; and an NC combination processing unit configured to combine the NC units used for the matching and deliver the combination of the NC units and detailed operating conditions to the networking management system.
    Type: Application
    Filed: February 10, 2020
    Publication date: August 13, 2020
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Kyung Hyu LEE, Hea Sook PARK, Ki Won KIM, Byeong Sik KIM, Yoon Sik YOO, Jong Kuk LEE, Hyung Kyu LEE, Jin Hyuk YIM, Ki Cheol JEON, Byung Chang CHUNG, Boo Geum JUNG
  • Publication number: 20200195577
    Abstract: A system and method for selecting an optimal path in a multi-media multi-path network. The system for selecting an optimal path in a multi-media multi-path network includes a memory storing a program for selecting an optimal path in the multi-media multi-path network and a processor for executing the program, wherein the processor uses a network performance parameter, which serves as state information, as an input value of a reinforcement learning algorithm and selects an optimal path using a Q-table obtained by applying the reinforcement learning algorithm.
    Type: Application
    Filed: December 9, 2019
    Publication date: June 18, 2020
    Inventor: Byung Chang CHUNG
  • Patent number: 10536201
    Abstract: A coordinated transmission method based on beam division multiple access and an apparatus performing the same are disclosed. The coordinated transmission method in a beam division multiple access environment, which divides a service target region into a plurality of beam sectors through a plurality of antenna arrays having at least one of a pattern characteristic and a polarization characteristic, includes receiving a coordination request from a user terminal located in the service target region and performing any one among a macro diversity operation, a coordinated silence operation, and a coordinated beamforming operation for the user terminal based on an interference level included in the coordination request.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: January 14, 2020
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Dong Ho Cho, Byung Chang Chung, Dae Hee Park, Joon Sang Han, Yun Sik Kim
  • Publication number: 20190252040
    Abstract: The present invention relates to a method for detecting cancer-specific diagnostic markers in a genome and, more specifically, to a method for identifying the relationship between cancer and genomic variations and detecting cancer-specific genomic changes, thereby enabling highly accurate cancer-specific biomarkers to be detected.
    Type: Application
    Filed: February 14, 2017
    Publication date: August 15, 2019
    Inventors: Dong Ho CHO, Gyu Bum HAN, Hye In SEO, Byung Chang CHUNG
  • Publication number: 20190053286
    Abstract: A random access method in a beam division multiple access (BDMA) system including: receiving, by a terminal, a reference signal of at least one beam sector transmitted from an access point (AP) device; estimating, by the terminal, whether the terminal is in a center area of the beam sector provided by the AP device or in the boundary area of the beam sector by using the strength of the reference signal; transmitting, by the terminal, a different preamble to the AP device in accordance with location information of whether the terminal is located in the center area or in the boundary area; and determining, by the AP device, a target beam sector for transmitting information about uplink resources to be used by the terminal, among a plurality of beam sectors on the basis of the received preamble.
    Type: Application
    Filed: February 22, 2016
    Publication date: February 14, 2019
    Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Dong Ho CHO, Byung Chang CHUNG, Dae Hee PARK, Joon Sang HAN, Yun Sik KIM
  • Patent number: 10033451
    Abstract: A receiving apparatus based on pattern/polarization beam division multiple access (BDMA) including an antenna configured to receive a reference signal related to at least one of patterns and polarizations of a plurality of antennas included in a transmitting apparatus, and configured to transmit channel information, and a controller configured to select a particular antenna group among a plurality of antenna groups that are grouped from the plurality of antennas included in the transmitting apparatus using the reference signal, and configured to generate the channel information corresponding to the particular antenna group.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: July 24, 2018
    Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Dong Ho Cho, Byung Chang Chung, Dae Hee Park, Joon Sang Han, Yun Sik Kim
  • Patent number: 9967794
    Abstract: Provided are two types of schemes capable of reducing power consumption of a User Equipment (UE). The first scheme is to select a set capable of minimizing power consumption of the UE when the UE enters a sleep mode. The second scheme is a handover scheme in which the UE having entered the sleep mode maintains the sleep mode corresponding to a cooperative Base Station (BS) set in a handover of the UE.
    Type: Grant
    Filed: August 8, 2014
    Date of Patent: May 8, 2018
    Assignees: SAMSUNG ELECTRONICS CO., LTD., KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Sung-Jin Park, Min-Hoe Kim, Byung-Chang Chung, Dong-Ho Cho
  • Publication number: 20180062721
    Abstract: A coordinated transmission method based on beam division multiple access and an apparatus performing the same are disclosed. The coordinated transmission method in a beam division multiple access environment, which divides a service target region into a plurality of beam sectors through a plurality of antenna arrays having at least one of a pattern characteristic and a polarization characteristic, includes receiving a coordination request from a user terminal located in the service target region and performing any one among a macro diversity operation, a coordinated silence operation, and a coordinated beamforming operation for the user terminal based on an interference level included in the coordination request.
    Type: Application
    Filed: February 22, 2016
    Publication date: March 1, 2018
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Dong Ho CHO, Byung Chang CHUNG, Dae Hee PARK, Joon Sang HAN, Yun Sik KIM
  • Patent number: 9907049
    Abstract: Provided is a method and apparatus for operating an idle mode in a wireless communication system. The method includes receiving a first message requesting entry to an idle mode from a Subscriber Station (SS) through at least one Base Station (BS), selecting in response to reception of the first message whether the MS is to enter an idle mode in which BSs belonging to a paging group broadcast a paging message for the MS or whether the MS is to enter a semi-idle mode in which BSs belonging to a semi-idle paging group, which is a subset of the paging group, broadcast the paging message for the SS, and transmitting Paging announce information instructing the BSs belonging to the semi-idle paging group to broadcast the paging message for the SS, if the semi-idle mode is selected.
    Type: Grant
    Filed: March 26, 2014
    Date of Patent: February 27, 2018
    Assignees: Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and Technology (KAIST)
    Inventors: Hyun-Jeong Kang, Min-Hoe Kim, Sung-Jin Park, Byung-Chang Chung, Dong-Ho Cho
  • Patent number: 9907090
    Abstract: The present invention can reduce the clashing of random accesses by assigning a random access priority according to the number of links. A method for random access from a terminal in a virtual cell network system according to an embodiment of the present invention comprises the steps of determining the number of links that are connected to the terminal; selecting a random access set for random access on the basis of the number of links; selecting a slot resource for random access from the random access set on the basis of the number of links; and performing a random access over the slot resource, wherein the slot resource includes a common resource held by a plurality of base stations.
    Type: Grant
    Filed: August 6, 2014
    Date of Patent: February 27, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung-Jin Park, Min-Hoe Kim, Byung-Chang Chung, Dong-Ho Cho
  • Publication number: 20170244467
    Abstract: A receiving apparatus based on pattern/polarization beam division multiple access (BDMA) including an antenna configured to receive a reference signal related to at least one of patterns and polarizations of a plurality of antennas included in a transmitting apparatus, and configured to transmit channel information, and a controller configured to select a particular antenna group among a plurality of antenna groups that are grouped from the plurality of antennas included in the transmitting apparatus using the reference signal, and configured to generate the channel information corresponding to the particular antenna group.
    Type: Application
    Filed: February 24, 2017
    Publication date: August 24, 2017
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Dong Ho CHO, Byung Chang CHUNG, Dae Hee PARK, Joon Sang HAN, Yun Sik KIM
  • Patent number: 9648536
    Abstract: A method for handover in a wireless communication system includes: when a received signal strength difference between a serving beam from a serving base station used for communication by a terminal and a target beam of a neighboring base station is equal to or greater than a first threshold value, and a received signal strength difference between an active beam and the target beam is equal to or greater than a second threshold value, determining a handover to the target beam; and transmitting a message to initiate the handover.
    Type: Grant
    Filed: September 12, 2013
    Date of Patent: May 9, 2017
    Assignees: SAMSUNG ELECTRONICS CO., LTD, KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Hyun-Jeong Kang, Sung-Jin Park, Byung-Chang Chung, Min-Hoe Kim, Jung-Min Moon, Dong-Ho Cho
  • Publication number: 20160205606
    Abstract: Provided are two types of schemes capable of reducing power consumption of a User Equipment (UE). The first scheme is to select a set capable of minimizing power consumption of the UE when the UE enters a sleep mode. The second scheme is a handover scheme in which the UE having entered the sleep mode maintains the sleep mode corresponding to a cooperative Base Station (BS) set in a handover of the UE.
    Type: Application
    Filed: August 8, 2014
    Publication date: July 14, 2016
    Inventors: Sung-Jin Park, Min-Hoe Kim, Byung-Chang Chung, Dong-Ho Cho
  • Publication number: 20160192392
    Abstract: The present invention can reduce the clashing of random accesses by assigning a random access priority according to the number of links. A method for random access from a terminal in a virtual cell network system according to an embodiment of the present invention comprises the steps of determining the number of links that are connected to the terminal; selecting a random access set for random access on the basis of the number of links; selecting a slot resource for random access from the random access set on the basis of the number of links; and performing a random access over the slot resource, wherein the slot resource includes a common resource held by a plurality of base stations.
    Type: Application
    Filed: August 6, 2014
    Publication date: June 30, 2016
    Inventors: Sung-Jin Park, Min-Hoe Min-Hoe, Byung-Chang Chung, Dong-Ho Cho
  • Patent number: 9155090
    Abstract: An apparatus and a method for transmitting and receiving a reference signal in a wireless communication system are provided. The method includes determining a cluster-specific reference signal configuration according a cluster configuration, transmitting information about the cluster-specific reference signal configuration, and transmitting cluster-specific reference signals of at least one cluster according to the cluster-specific reference signal configuration.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: October 6, 2015
    Assignees: Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and Technology
    Inventors: Jung-Min Moon, Byung-Chang Chung, Dong-Ho Cho
  • Publication number: 20140295896
    Abstract: Provided is a method and apparatus for operating an idle mode in a wireless communication system. The method includes receiving a first message requesting entry to an idle mode from a Subscriber Station (SS) through at least one Base Station (BS), selecting in response to reception of the first message whether the MS is to enter an idle mode in which BSs belonging to a paging group broadcast a paging message for the MS or whether the MS is to enter a semi-idle mode in which BSs belonging to a semi-idle paging group, which is a subset of the paging group, broadcast the paging message for the SS, and transmitting Paging announce information instructing the BSs belonging to the semi-idle paging group to broadcast the paging message for the SS, if the semi-idle mode is selected.
    Type: Application
    Filed: March 26, 2014
    Publication date: October 2, 2014
    Applicants: Korea Advanced Institute of Science and Technology, Samsung Electronics Co., Ltd.
    Inventors: Hyun-Jeong Kang, Min-Hoe Kim, Sung-Jin Park, Byung-Chang Chung, Dong-Ho Cho
  • Publication number: 20140073329
    Abstract: A method for handover in a wireless communication system includes: when a received signal strength difference between a serving beam from a serving base station used for communication by a terminal and a target beam of a neighboring base station is equal to or greater than a first threshold value, and a received signal strength difference between an active beam and the target beam is equal to or greater than a second threshold value, determining a handover to the target beam; and transmitting a message to initiate the handover.
    Type: Application
    Filed: September 12, 2013
    Publication date: March 13, 2014
    Applicants: Korea Advanced Institute of Science and Technology, Samsung Electronics Co., Ltd.
    Inventors: Hyun-Jeong Kang, Sung-Jin Park, Byung-Chang Chung, Min-Hoe Kim, Jung-Min Moon, Dong-Ho Cho