Patents by Inventor Chung Gu Kang

Chung Gu Kang 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).

  • Publication number: 20200359415
    Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). According to various embodiments of the present disclosure, an apparatus of a base station of a first operator in a wireless communication system includes: at least one transceiver; and at least one processor operatively coupled with the at least one transceiver, and the at least one processor is configured to transmit a first signal during a first slot regarding the first operator in a contention duration, and to determine occupancy of a band in an access duration, based on a priority of the first operator, and the priority is determined according to at least one second signal which is detected before the first slot in the contention duration.
    Type: Application
    Filed: August 23, 2018
    Publication date: November 12, 2020
    Inventors: Seung-Hoon PARK, Chung Gu KANG, Chung Kee KIM, Jung-Min MOON, Junman LEE, Byounghoon JUNG, Jungsoo JUNG
  • Patent number: 10820325
    Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). A base station apparatus according to various embodiments may comprise: a communication unit configured to transmit or receive information; and a control unit coupled to the communication unit, wherein the control unit may be configured to receive, from at least one other base station that shares a frequency band, first information associated with one or more of a second base station and a second terminal included in a second system that shares the frequency band, determine a transmission start alignment interval on the basis of the received first information, and transmit information on the transmission start alignment interval to the at least one other base station.
    Type: Grant
    Filed: August 16, 2016
    Date of Patent: October 27, 2020
    Assignees: Samsung Electronics Co., Ltd., Korea University Research and Business Foundation
    Inventors: Seung-Hoon Park, Chung-Gu Kang, Chung-Kee Kim, Chan-Seok Yang, Jung-Min Moon
  • Patent number: 10716137
    Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system for supporting higher data rates beyond 4th-Generation (4G) communication system such as long term evolution (LTE). According to various embodiments in the present disclosure, a method of operating a terminal in a wireless communication system comprises receiving information for indicating a pre-listen interval within an allocated channel occupancy time from a base station (BS), transmitting a reporting signal for indicating that occupancy of an unlicensed band by at least one node is not detected during the pre-listen interval, receiving resource allocation information for indicating uplink resources of the unlicensed band allocated based on the reporting signal, and transmitting uplink data through the uplink resources.
    Type: Grant
    Filed: May 26, 2018
    Date of Patent: July 14, 2020
    Assignees: Samsung Electronics Co., Ltd., Korea University Research and Business Foundation
    Inventors: Seung-Hoon Park, Chung Gu Kang, Chung Kee Kim, Jung-Min Moon, Junman Lee, Byounghoon Jung, Jungsoo Jung
  • Patent number: 10631218
    Abstract: The disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). a method for operating a terminal in a wireless communication system is provided. The method includes receiving information relating to a data session from a network node, determining a target node among nodes belonging to a second network based on the information relating to the data session, and performing a handover from a source node belonging to a first network to the target node.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: April 21, 2020
    Assignees: Samsung Electronics Co., Ltd, Korea University Research and Business Foundation
    Inventors: Young Kyo Baek, Chung Gu Kang, Chan Seok Yang, Jungje Son, Sunghoon Kim, Jun Man Lee, Hoyeon Lee
  • Patent number: 10595227
    Abstract: Disclosed are an apparatus and a method for simultaneously multiplexing and transmitting a broadband traffic and a machine-to-machine traffic or an ultra-reliable low latency communication traffic using the same resource. That is, according to the present invention, it is possible to enhance efficiency of resources when an eMBB traffic and an mMTC traffic or an uRLLC traffic are multiplexed, by spreading and transmitting intermittent data generated in an MTC terminal with superimposition on a subcarrier resource allocated to an eMBB terminal without reservation on a time axis while sharing a high-speed data resource in an OFDMA system and transmitting an uRLCC terminal requiring a short transmission latency time with superimposition on one symbol on a frequency axis.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: March 17, 2020
    Assignee: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Chung Gu Kang, Ameha Tsegaye Abebe
  • Patent number: 10567033
    Abstract: Disclosed are a method and an apparatus for detecting real-time random access and multi-user using multiple sequence spreading. The method for detecting real-time random access and multi-user using multiple sequence spreading may include steps of selecting, by user equipment, one spreading sequence set from a plurality of spreading sequence sets randomly without a separate resource allocation and/or spreading sequence allocation, applying, by the user equipment, each of the plurality of spreading sequences included in the one spreading sequence set to each of the plurality of symbols included in a group, and transmitting, by the user equipment, each of the plurality of symbols spread based on each of the plurality of spreading sequences.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: February 18, 2020
    Assignee: Korea University Research and Business Foundation
    Inventors: Chung Gu Kang, Ameha Tsegaye Abebe
  • Patent number: 10469293
    Abstract: Provided are FTN-based OFDM transmission apparatus and method for efficient coexistence of broadband and sporadic traffics which may share radio resources with a Nyquist rate or more of efficiency by inserting the sporadic traffic into resources allocated to the broadband traffic in uplink transmission of a mobile communication system and use the band multiplexing even to a multi input multi output (MIMO) transmission apparatus. According to the present invention, it is possible to reduce quality deterioration according to actual offloading of subcarriers by removing some frequency components to remove a frequency domain allocated with some subcarriers among frequency components of the broadband traffic to selectively offload subcarriers having low contribution rate for the actual broadband transmission and to use the sporadic traffic in a grant-free access scheme by using bands used for the offloaded subcarriers in the sporadic traffic transmission.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: November 5, 2019
    Assignee: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Chung Gu Kang, Ameha Tsegaye Abebe
  • Patent number: 10470211
    Abstract: The present disclosure relates to a pre-5th-generation (5G) or 5G communication system to be provided for supporting higher data rates beyond 4th-generation (4G) communication system such as long term evolution (LTE). An apparatus of a base station in a wireless communication system is provided. The apparatus includes at least one processor configured to determine a length of a channel occupancy period and a length of a contention period with respect to a band shared with other system, and a transceiver configured to, when detecting no signal of the other system until a time indicated by a back-off value in the contention period, transmit a signal over the band. A method of a base station in a wireless communication system is provided.
    Type: Grant
    Filed: April 12, 2016
    Date of Patent: November 5, 2019
    Assignees: Samsung Electronics Co., Ltd., Korea University Research and Business Foundation
    Inventors: Chung Gu Kang, Chung Kee Kim, Chan Seok Yang
  • Publication number: 20190253923
    Abstract: Disclosed are an apparatus and a method for simultaneously multiplexing and transmitting a broadband traffic and a machine-to-machine traffic or an ultra-reliable low latency communication traffic using the same resource. That is, according to the present invention, it is possible to enhance efficiency of resources when an eMBB traffic and an mMTC traffic or an uRLLC traffic are multiplexed, by spreading and transmitting intermittent data generated in an MTC terminal with superimposition on a subcarrier resource allocated to an eMBB terminal without reservation on a time axis while sharing a high-speed data resource in an OFDMA system and transmitting an uRLCC terminal requiring a short transmission latency time with superimposition on one symbol on a frequency axis.
    Type: Application
    Filed: April 12, 2017
    Publication date: August 15, 2019
    Inventors: Chung Gu KANG, Ameha Tsegaye ABEBE
  • Publication number: 20190215197
    Abstract: Provided are FTN-based OFDM transmission apparatus and method for efficient coexistence of broadband and sporadic traffics which may share radio resources with a Nyquist rate or more of efficiency by inserting the sporadic traffic into resources allocated to the broadband traffic in uplink transmission of a mobile communication system and use the band multiplexing even to a multi input multi output (MIMO) transmission apparatus. According to the present invention, it is possible to reduce quality deterioration according to actual offloading of subcarriers by removing some frequency components to remove a frequency domain allocated with some subcarriers among frequency components of the broadband traffic to selectively offload subcarriers having low contribution rate for the actual broadband transmission and to use the sporadic traffic in a grant-free access scheme by using bands used for the offloaded subcarriers in the sporadic traffic transmission.
    Type: Application
    Filed: December 3, 2018
    Publication date: July 11, 2019
    Inventors: Chung Gu KANG, Ameha Tsegaye ABEBE
  • Patent number: 10212736
    Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as long term evolution (LTE). According to various embodiments of the present disclosure, an apparatus according to aspects of a communication system that shares a channel with another communication system may include at least one processor and at least one transceiver. The at least one processor may be configured to determine a transmission timing of an initial signal based on a parameter for the initial signal that indicates that the apparatus occupies a channel and at least one detection interval for detecting a signal of the another communication system. The at least one transceiver is configured to transmit the initial signal according to the transmission timing.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: February 19, 2019
    Assignees: Samsung Electronics Co., Ltd., Korea University Research and Business Foundation
    Inventors: Chung-Gu Kang, Chung-Kee Kim, Chan-Seok Yang
  • Publication number: 20190007879
    Abstract: The disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). a method for operating a terminal in a wireless communication system is provided. The method includes receiving information relating to a data session from a network node, determining a target node among nodes belonging to a second network based on the information relating to the data session, and performing a handover from a source node belonging to a first network to the target node.
    Type: Application
    Filed: June 29, 2018
    Publication date: January 3, 2019
    Inventors: Young Kyo BAEK, Chung Gu Kang, Chan Seok Yang, Jungje Son, Sunghoon Kim, Jun Man Lee, Hoyeon Lee
  • Publication number: 20180351600
    Abstract: Disclosed are a method and an apparatus for detecting real-time random access and multi-user using multiple sequence spreading. The method for detecting real-time random access and multi-user using multiple sequence spreading may include steps of selecting, by user equipment, one spreading sequence set from a plurality of spreading sequence sets randomly without a separate resource allocation and/or spreading sequence allocation, applying, by the user equipment, each of the plurality of spreading sequences included in the one spreading sequence set to each of the plurality of symbols included in a group, and transmitting, by the user equipment, each of the plurality of symbols spread based on each of the plurality of spreading sequences.
    Type: Application
    Filed: January 13, 2016
    Publication date: December 6, 2018
    Applicant: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Chung Gu KANG, Ameha Tsegaye ABEBE
  • Publication number: 20180343670
    Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system for supporting higher data rates beyond 4th-Generation (4G) communication system such as long term evolution (LTE). According to various embodiments in the present disclosure, a method of operating a terminal in a wireless communication system comprises receiving information for indicating a pre-listen interval within an allocated channel occupancy time from a base station (BS), transmitting a reporting signal for indicating that occupancy of an unlicensed band by at least one node is not detected during the pre-listen interval, receiving resource allocation information for indicating uplink resources of the unlicensed band allocated based on the reporting signal, and transmitting uplink data through the uplink resources.
    Type: Application
    Filed: May 26, 2018
    Publication date: November 29, 2018
    Inventors: Seung-Hoon PARK, Chung Gu KANG, Chung Kee KIM, Jung-Min MOON, Junman LEE, Byounghoon JUNG, Jungsoo JUNG
  • Publication number: 20180249469
    Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). A base station apparatus according to various embodiments may comprise: a communication unit configured to transmit or receive information; and a control unit coupled to the communication unit, wherein the control unit may be configured to receive, from at least one other base station that shares a frequency band, first information associated with one or more of a second base station and a second terminal included in a second system that shares the frequency band, determine a transmission start alignment interval on the basis of the received first information, and transmit information on the transmission start alignment interval to the at least one other base station.
    Type: Application
    Filed: August 16, 2016
    Publication date: August 30, 2018
    Inventors: Seung-Hoon PARK, Chung-Gu KANG, Chung-Kee KIM, Chan-Seok YANG, Jung-Min MOON
  • Publication number: 20180139780
    Abstract: The present disclosure relates to a pre-5th-generation (5G) or 5G communication system to be provided for supporting higher data rates beyond 4th-generation (4G) communication system such as long term evolution (LTE). An apparatus of a base station in a wireless communication system is provided. The apparatus includes at least one processor configured to determine a length of a channel occupancy period and a length of a contention period with respect to a band shared with other system, and a transceiver configured to, when detecting no signal of the other system until a time indicated by a back-off value in the contention period, transmit a signal over the band. A method of a base station in a wireless communication system is provided.
    Type: Application
    Filed: April 12, 2016
    Publication date: May 17, 2018
    Inventors: Chung Gu KANG, Chung Kee KIM, Chan Seok YANG
  • Patent number: 9906617
    Abstract: A method for operating a receiving portable terminal in a mobile communication system includes receiving a first packet from a sending portable terminal, determining a fingerprint overlapping a fingerprint corresponding to at least one chunk of the first packet in a fingerprint set cache, determining a fingerprint set including the most redundant fingerprints, in the fingerprint set cache, determining at least one fingerprint to send, in the determined fingerprint set, sending the at least one determined fingerprint to the sending portable terminal, and receiving a second packet from the sending portable terminal. An apparatus includes a controller configured to determine at least one redundant fingerprint overlapping a fingerprint corresponding to at least one chunk of the first packet in a fingerprint set cache, determine a fingerprint set including the most redundant fingerprint in the fingerprint set cache, and determine at least one fingerprint to send in the determined fingerprint set.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: February 27, 2018
    Assignees: Samsung Electronics Co., Ltd., Korea University Research and Business Foundation
    Inventors: Sang-Heon Pack, Gwang-Woo Park, Young-Jun Shim, Chung-Gu Kang
  • Publication number: 20170257879
    Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as long term evolution (LTE). According to various embodiments of the present disclosure, an apparatus according to aspects of a communication system that shares a channel with another communication system may include at least one processor and at least one transceiver. The at least one processor may be configured to determine a transmission timing of an initial signal based on a parameter for the initial signal that indicates that the apparatus occupies a channel and at least one detection interval for detecting a signal of the another communication system. The at least one transceiver is configured to transmit the initial signal according to the transmission timing.
    Type: Application
    Filed: March 3, 2017
    Publication date: September 7, 2017
    Inventors: Chung-Gu Kang, Chung-Kee Kim, Chan-Seok Yang
  • Patent number: 9756496
    Abstract: A method of a Mobile Station (MS) for discovering neighbor MSs in a Device to Device (D2D) network includes broadcasting, by a discovery MS, a discovery request signal for discovering neighbor MSs, using a discovery request resource region repeated with a first period, if a neighbor MS discovery event is detected; and receiving, by the discovery MS, a discovery signal from at least one of other MSs in response to the discovery request signal, using a discovery resource region repeated with a second period. Other embodiments including a method for a central node discovering neighbor MSs and a discovery MS and a central node are also disclosed.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: September 5, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hye Joong Kang, Chung Gu Kang, Kwon Yeol Park, Sang Heon Pack
  • Patent number: 9734710
    Abstract: Provided are a real-time traffic flow control and dynamic route guidance system, a parking guidance system using the same, and a method thereof capable of guiding a vehicle distribution and a transportation flow by collecting positional information, destination information, a vehicle moving speed, and the like from each vehicle in real time at one or a plurality of central centers by using an in-vehicle navigator with bidirectional communication and a GPS to dynamically calculate and provide an optimal route of an individual vehicle so as to make a flow of the entire transportation network smooth and perform a control for a transportation network structure through various kinds of traffic control devices installed on roads.
    Type: Grant
    Filed: February 2, 2015
    Date of Patent: August 15, 2017
    Assignee: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventor: Chung Gu Kang