Patents by Inventor Hyoung Jin Kwon

Hyoung Jin Kwon 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).

  • Communication method and communication device in wireless LAN system that supports multi-bandwidth
    Patent number: 10462791
    Abstract: Provided is an apparatus and method for communication in a wireless local area network (LAN) system supporting a multi-bandwidth in which a communication apparatus supporting a multi-bandwidth includes generating a base frame based on at least one of a first bandwidth having the lowest signal-to-noise ratio (SNR) among predetermined bandwidths and a second bandwidth that is two times greater than the first bandwidth, configuring a duplication mode frame based on the base frame, and transmitting the duplication mode frame through a plurality of bands.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: October 29, 2019
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Hee Jung Yu, Min Ho Cheong, Jae Seung Lee, Hyoung Jin Kwon, Sok Kyu Lee
  • Communication method using interference alignment in wireless LAN
    Patent number: 10454534
    Abstract: Disclosed is a communication method using interference alignment in a wireless local area network (WLAN). An access point (AP) according to one embodiment may receive first channel information between a station associated with the AP and the AP and second channel information between the station and a neighboring AP to perform interference alignment in cooperation with the AP from the station, and perform interference alignment based on the first channel information and the second channel information.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: October 22, 2019
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jae Seung Lee, Jin Hyung Oh, Gwang Zeen Ko, Hyun Duk Kang, Hyoung Jin Kwon, Myung Sun Song, Sok Kyu Lee, Min Ho Cheong, Jae Ick Choi
  • APPARATUS AND METHOD FOR BROADBAND WIRELESS LOCAL AREA COMMUNICATION
    Publication number: 20190312632
    Abstract: Provided is an apparatus and method for wideband short-range wireless communication using a directional antenna in a millimeter wave band, and the method for wideband short-range wireless communication according to an embodiment may determine a first time interval and a second time interval for a cooperated data frame transfer based on a packet transmission time at each transmission from a source node to a destination node, transmit a frame to a relay node through an antenna pattern directed towards the relay node at a start point of the first time interval, and transmit the frame to the destination node through an antenna pattern directed towards the destination node after a predetermined period of time from a start point of the second time interval.
    Type: Application
    Filed: June 24, 2019
    Publication date: October 10, 2019
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Kap Seok CHANG, Hyoung Jin KWON, Sung Geun JIN, Yong Sun KIM, Seung Eun HONG, Woo Yong LEE, Hyun Kyu CHUNG
  • FRAME TRANSMITTING METHOD AND FRAME RECEIVING METHOD
    Publication number: 20190305989
    Abstract: A method of transmitting a frame is provided by a device in a WLAN. The device sets as additional data subcarriers some of subcarriers which are not set as data subcarriers in at least part of fields included in a frame of a legacy frame format, and allocates information to the additional data subcarriers.
    Type: Application
    Filed: June 13, 2019
    Publication date: October 3, 2019
    Inventors: Heejung YU, Minho CHEONG, Hyoung Jin KWON
  • DEVICE AND METHOD FOR CONTROLLING SLOT-BASED CHANNEL ACCESS IN WIRELESS LAN SYSTEM, AND SLOT-BASED CHANNEL ACCESS TERMINAL IN WIRELESS LAN
    Publication number: 20190289625
    Abstract: An apparatus and a method of controlling slot-based channel access by an access point (AP) to manage a network in a wireless local area network (WLAN) environment and a slot-based channel access terminal are disclosed. A slot-based channel access control apparatus of a WLAN system according to an exemplary embodiment determines one of each terminal and a group of terminals as a slot allocation target, allocates a slot defined in a beacon interval to the determined terminal or group to distinguish channel access time, and transmits a beacon including information on the allocated slot.
    Type: Application
    Filed: June 3, 2019
    Publication date: September 19, 2019
    Inventors: Hyoung Jin KWON, Jae Seung LEE, Min ho CHEONG, Hee Jung YU, Sok Kyu LEE
  • METHOD AND DEVICE FOR ALLOCATING RESOURCE IN WIRELESS LAN SYSTEM, COMMUNICATION TERMINAL METHOD AND COMMUNICATION TERMINAL
    Publication number: 20190274126
    Abstract: Provided is a method and apparatus for allocating resources in a wireless local area network (WLAN) system, the method including determining a restricted access bandwidth (RAB) interval based on at least a bandwidth or a partial bandwidth among a plurality of bandwidths, and setting a restricted access window (RAW) of a time domain based on the RAB interval.
    Type: Application
    Filed: May 21, 2019
    Publication date: September 5, 2019
    Inventors: Min ho CHEONG, Hyoung Jin KWON, Jae Seung LEE, Jae Woo PARK, Sok Kyu LEE
  • APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING DATA USING MULTI-PATH IN WIRELESS COMMUNICATION SYSTEM OF DISTRIBUTED MAC
    Publication number: 20190254039
    Abstract: Provided is an apparatus and method for transmitting and receiving data using multiple paths in a wireless communication system using a distributed Media Access Control (MAC). More particularly, provided is an apparatus and method for transmitting and receiving data that may select a path with a better channel status from multiple paths that include a direct path using a Line of Sight (LOS) and a relay path passing through a relay apparatus, in a wireless communication system that may transmit data via the LOS using a distributed MAC and a directional antenna.
    Type: Application
    Filed: April 29, 2019
    Publication date: August 15, 2019
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Hyoung Jin KWON, Jin Kyeong KIM, Yong Sun KIM, Kyeongpyo KIM, Seung Eun HONG, Woo Yong LEE
  • Method and apparatus for setting detour path in wideband high frequency wireless system using centralized mac protocol
    Patent number: 10382318
    Abstract: Provided is a method and apparatus for setting a detour path in a wideband high frequency wireless system using a centralized Media Access Control (MAC) protocol. Here, in a wireless system using the centralized MAC protocol where a time synchronization and a band allocation may be performed by a single central control unit, when a signal blockage occurs while a data communication is being performed via a direct path between a source device and a destination device, the detour path may be quickly provided.
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: August 13, 2019
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Seung Eun Hong, Kyeongpyo Kim, Yong Sun Kim, Hyoung Jin Kwon, Woo Yong Lee
  • Channel sounding method in wireless LAN system and device for supporting same
    Patent number: 10375682
    Abstract: A method for channel sounding in a wireless local area network (WLAN) system and apparatus for the same is disclosed. An access point (AP) to perform the method for channel sounding broadcasts information on a restricted access window (RAW) for channel sounding included in a beacon, and transmits null data packets (NDP) for channel estimation in the RAW to a station (STA). The STA estimates channel information based on the NDPs, and transmits the estimated channel information to the AP.
    Type: Grant
    Filed: May 12, 2014
    Date of Patent: August 6, 2019
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Min ho Cheong, Hyoung Jin Kwon, Jae Seung Lee, Sok Kyu Lee
  • METHOD FOR CHANGING OPERATING MODE OF WIRELESS LAN SYSTEM AND WIRELESS LAN SYSTEM
    Publication number: 20190239161
    Abstract: An operating mode change method of a wireless local area network (WLAN) system according to an exemplary embodiment includes transmitting, by a station (STA) to an access point (AP), an operating mode change request frame comprising at least one of information on a change of a traffic indication map (TIM) mode, a request for a change of a power save parameter, and information on a change of a service type of the STA, receiving, from the AP, an operating mode change response frame comprising at least one of a TIM mode allowed by the AP, a reallocated association identification (AID), and information on a changed power save parameter, and performing at least one of the change of the TIM mode and the change of the power save parameter based on the information included in the operating mode change
    Type: Application
    Filed: April 9, 2019
    Publication date: August 1, 2019
    Inventors: Jae Seung LEE, Hyoung Jin KWON, Min ho CHEONG, Hee Jung YU, Sok Kyu LEE
  • Apparatus and method for broadband wireless local area communication
    Patent number: 10361770
    Abstract: Provided is an apparatus and method for wideband short-range wireless communication using a directional antenna in a millimeter wave band, and the method for wideband short-range wireless communication according to an embodiment may determine a first time interval and a second time interval for a cooperated data frame transfer based on a packet transmission time at each transmission from a source node to a destination node, transmit a frame to a relay node through an antenna pattern directed towards the relay node at a start point of the first time interval, and transmit the frame to the destination node through an antenna pattern directed towards the destination node after a predetermined period of time from a start point of the second time interval.
    Type: Grant
    Filed: June 16, 2014
    Date of Patent: July 23, 2019
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Kap Seok Chang, Hyoung Jin Kwon, Sung Geun Jin, Yong Sun Kim, Seung Eun Hong, Woo Yong Lee, Hyun Kyu Chung
  • Device and method for controlling slot-based channel access in wireless LAN system, and slot-based channel access terminal in wireless LAN
    Patent number: 10356810
    Abstract: An apparatus and a method of controlling slot-based channel access by an access point (AP) to manage a network in a wireless local area network (WLAN) environment and a slot-based channel access terminal are disclosed. A slot-based channel access control apparatus of a WLAN system according to an exemplary embodiment determines one of each terminal and a group of terminals as a slot allocation target, allocates a slot defined in a beacon interval to the determined terminal or group to distinguish channel access time, and transmits a beacon including information on the allocated slot.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: July 16, 2019
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Hyoung Jin Kwon, Jae Seung Lee, Min Ho Cheong, Hee Jung Yu, Sok Kyu Lee
  • Method and device for allocating resource in wireless LAN system, communication terminal method and communication terminal
    Patent number: 10342011
    Abstract: Provided is a method and apparatus for allocating resources in a wireless local area network (WLAN) system, the method including determining a restricted access bandwidth (RAB) interval based on at least a bandwidth or a partial bandwidth among a plurality of bandwidths, and setting a restricted access window (RAW) of a time domain based on the RAB interval.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: July 2, 2019
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Min Ho Cheong, Hyoung Jin Kwon, Jae Seung Lee, Jae Woo Park, Sok Kyu Lee
  • APPARATUS AND METHOD FOR CHANNEL ACCESS
    Publication number: 20190191455
    Abstract: A channel access method and apparatus are disclosed. The channel access method by an access point (AP) having a sector antenna in a wireless local access network (WLAN), may include transmitting a sector beacon with respect to any one sector among a plurality of sectors, transmitting and receiving data with at least one station in any one sector during a pre-scheduled sector interval, sequentially performing transmission of the sector beacon and transmission and reception of the data with respect to remaining sectors of the plurality of sectors excluding the any one sector, transmitting an omni beacon with respect to all of the plurality of sectors, and transmitting and receiving data with respect to at least one station of the plurality of sectors during a pre-scheduled Basic Service Set (BSS) interval.
    Type: Application
    Filed: January 10, 2019
    Publication date: June 20, 2019
    Inventors: Min ho CHEONG, Hyoung Jin KWON, Jae Seung LEE, Jae Woo PARK, Sok Kyu LEE
  • Frame transmitting method and frame receiving method
    Patent number: 10326618
    Abstract: A method of transmitting a frame is provided by a device in a WLAN. The device sets as additional data subcarriers some of subcarriers which are not set as data subcarriers in at least part of fields included in a frame of a legacy frame format, and allocates information to the additional data subcarriers.
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: June 18, 2019
    Assignee: NEWRACOM, INC.
    Inventors: Heejung Yu, Minho Cheong, Hyoung Jin Kwon
  • METHOD OF TRANSMITTING AND RECEIVING FRAME FOR UPLINK MULTI-USER MULTIPLE-INPUT AND MULTIPLE-OUTPUT (UL MU-MIMO) COMMUNICATION
    Publication number: 20190181927
    Abstract: Provided is a method of transmitting and receiving a frame for a multi-user multiple-input and multiple-output (MU-MIMO) communication in an access point (AP), the method including determining at least one transmission station (STA), transmitting, to the transmission STA, an uplink multi-user poll (UL MU poll) frame requesting a data frame, receiving the data frame from the at least one transmission STA simultaneously, and transmitting an acknowledgement (ACK) frame to the at least one transmission STA in response to the receiving
    Type: Application
    Filed: February 15, 2019
    Publication date: June 13, 2019
    Inventors: Jee Yon CHOI, Hyoung Jin KWON, Je Hun LEE, Sok Kyu LEE
  • Method for changing operating mode of wireless LAN system and wireless LAN system
    Patent number: 10306557
    Abstract: An operating mode change method of a wireless local area network (WLAN) system according to an exemplary embodiment includes transmitting, by a station (STA) to an access point (AP), an operating mode change request frame comprising at least one of information on a change of a traffic indication map (TIM) mode, a request for a change of a power save parameter, and information on a change of a service type of the STA, receiving, from the AP, an operating mode change response frame comprising at least one of a TIM mode allowed by the AP, a reallocated association identification (AID), and information on a changed power save parameter, and performing at least one of the change of the TIM mode and the change of the power save parameter based on the information included in the operating mode change.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: May 28, 2019
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jae Seung Lee, Hyoung Jin Kwon, Min Ho Cheong, Hee Jung Yu, Sok Kyu Lee
  • SCANNING METHOD IN WIRELESS LAN SYSTEM AND SUPPORTING DEVICE THEREFOR
    Publication number: 20190150078
    Abstract: A scanning method performed by a station (STA) in a wireless LAN system is provided. The method comprises: transmitting a probe request frame; and receiving a short probe response frame from an access point (AP) as a response to the probe request frame.
    Type: Application
    Filed: January 10, 2019
    Publication date: May 16, 2019
    Inventors: Jae Seung LEE, Min Ho CHEONG, Hyoung Jin KWON, Hee Jung YU, Sok Kyu LEE
  • Apparatus and method for transmitting and receiving data using multi-path in wireless communication system of distributed MAC
    Patent number: 10278188
    Abstract: Provided is an apparatus and method for transmitting and receiving data using multiple paths in a wireless communication system using a distributed Media Access Control (MAC). More particularly, provided is an apparatus and method for transmitting and receiving data that may select a path with a better channel status from multiple paths that include a direct path using a Line of Sight (LOS) and a relay path passing through a relay apparatus, in a wireless communication system that may transmit data via the LOS using a distributed MAC and a directional antenna.
    Type: Grant
    Filed: January 8, 2018
    Date of Patent: April 30, 2019
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Hyoung Jin Kwon, Jin Kyeong Kim, Yong Sun Kim, Kyeongpyo Kim, Seung Eun Hong, Woo Yong Lee
  • METHOD AND APPARATUS FOR WIRELESS COMMUNICATION BASED ON FREQUENCY SELECTIVE TRANSMISSION IN WIRELESS LOCAL AREA NETWORK
    Publication number: 20190104531
    Abstract: Disclosed are a wireless communication method, and an access point and a station which perform the wireless communication method. A wireless communication method performed by an access point according to an embodiment may include performing channel sounding on a plurality of subchannels, identifying subchannels selected by stations among the subchannels, scheduling communications between the AP and the stations based on the selected subchannels, and transmitting a data frame to the stations through the subchannels based on a scheduling result.
    Type: Application
    Filed: November 14, 2018
    Publication date: April 4, 2019
    Inventors: Hyoung Jin KWON, Sok Kyu LEE, Jae Seung LEE, Min Ho CHEONG