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).

  • Method of transmitting and receiving frame for uplink multi-user multiple-input and multiple-output (UL MU-MIMO) communication
    Patent number: 10250304
    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: Grant
    Filed: July 14, 2017
    Date of Patent: April 2, 2019
    Assignee: ELECTRONIC AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jee Yon Choi, Hyoung Jin Kwon, Je Hun Lee, Sok Kyu Lee
  • Scanning method in wireless LAN system and supporting device therefor
    Patent number: 10225792
    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. The short probe response frame includes service set ID (SSID) information or compressed SSID information of the AP.
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: March 5, 2019
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jae Seung Lee, Min Ho Cheong, Hyoung Jin Kwon, Hee Jung Yu, Sok Kyu Lee
  • Apparatus and method for channel access
    Patent number: 10219298
    Abstract: A channel access method of an access point (AP) having a sector antenna in a wireless local access network (WLAN) includes 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: Grant
    Filed: September 15, 2017
    Date of Patent: February 26, 2019
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Min Ho Cheong, Hyoung Jin Kwon, Jae Seung Lee, Jae Woo Park, Sok Kyu Lee
  • METHOD AND APPARATUS FOR DISCOVERY OF SECTOR IN WIRELESS LOCAL AREA NETWORK SYSTEM
    Publication number: 20190021041
    Abstract: Provided is a sector discovery apparatus and method, the method including setting, by an AP in a WLAN system, an omni-beacon interval for transmitting an omnidirectional beacon and sector beacon intervals for transmitting a sector beacon with respect to one of a plurality of sectors which are spatially divided, transmitting the sector beacon to a current sector among the plurality of sectors, transmitting, to the current sector, a transmission frame indicating sectorized transmission or a transmission frame indicating omnidirectional transmission, in a sector interval between the sector beacon intervals, and receiving, from a terminal located in the current sector, a response frame indicating an association performed by receiving the transmission frame indicating the sectorized transmission
    Type: Application
    Filed: September 6, 2018
    Publication date: January 17, 2019
    Inventors: Jae Seung LEE, Min ho CHEONG, Hyoung Jin KWON, Jae Woo PARK, Sok Kyu LEE
  • Communication based on frequency selective transmission in wireless local area network
    Patent number: 10165584
    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: Grant
    Filed: November 4, 2014
    Date of Patent: December 25, 2018
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Hyoung Jin Kwon, Sok Kyu Lee, Jae Seung Lee, Min Ho Cheong
  • Operation method for access point and operation method for relay
    Patent number: 10136339
    Abstract: An operating method of an access point (AP) and an operating method of a relay are disclosed in which the AP may determine whether to associate with the relay based on at least one of first information indicating whether use of an overlapping channel is restricted, second information indicating whether an operation using a non-overlapping channel is supported by the relay, and third information indicating whether use of a channel identical to a channel used by the AP is requested.
    Type: Grant
    Filed: September 10, 2014
    Date of Patent: November 20, 2018
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jae Seung Lee, Hyoung Jin Kwon, Sok Kyu Lee, Min Ho Cheong
  • Method and apparatus for performing wireless communication based on heterogeneous interference alignment (IA) scheme in wireless local area network (WLAN)
    Patent number: 10136348
    Abstract: Provided is a method and apparatus for performing a wireless communication based on a heterogeneous interference alignment (IA) scheme for a downlink multi-user multiple-input and multiple-output (DL MU-MIMO) communication in a wireless local area network (WLAN), and a wireless communication method employing a hybrid scheme that may include storing maximum throughputs of IA schemes, measuring an environment of a wireless network, calculating predicted throughputs of the IA schemes based on the measured environment of the wireless network, selecting an IA scheme from among the IA schemes based on the predicted throughputs, and communicating with a user terminal based on the selected IA scheme.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: November 20, 2018
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Min Ho Cheong, Hyoung Jin Kwon, Sok Kyu Lee, Jae Seung Lee
  • METHOD FOR ALLOCATING RESOURCES IN WIRELESS LAN SYSTEM AND WIRELESS LAN SYSTEM
    Publication number: 20180332596
    Abstract: Provided are a method of allocating resources in a wireless local area network (WLAN) system and the WLAN system including an access point (AP) to allocate a resource for communication between a relay and a station associated with the relay, the relay to allocate a restricted access window (RAW) or a slot for communication with a station based on the allocated resource, and the station to communicate with the relay based on the allocated RAW or the allocated slot.
    Type: Application
    Filed: July 26, 2018
    Publication date: November 15, 2018
    Inventors: Jae Seung LEE, Min Ho CHEONG, Hyoung Jin KWON, Sok Kyu LEE, Wun Cheol JEONG, Chang Sub SHIN, Cheol Sig PYO
  • COMMUNICATION METHOD AND COMMUNICATION DEVICE IN WIRELESS LAN SYSTEM THAT SUPPORTS MULTI-BANDWIDTH
    Publication number: 20180324806
    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: Application
    Filed: July 13, 2018
    Publication date: November 8, 2018
    Inventors: Hee Jung YU, Min Ho CHEONG, Jae Seung LEE, Hyoung Jin KWON, Sok Kyu LEE
  • UPLINK MULTI-USER MULTIPLE-INPUT AND MULTIPLE-OUTPUT (UL MU-MIMO) TRANSMISSION REQUEST METHOD IN UL MU-MIMO COMMUNICATION
    Publication number: 20180309674
    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 transmitting, to each of a plurality of stations (STAs), an uplink multi-user request (UL MU request) frame requesting transmission of a data frame, and receiving, from each of the plurality of STAs, the data frame during an identical period of time based on an identical reception intensity, wherein the UL MU request frame includes at least one of information on a transmission time of the data frame and information on a reception intensity of the data frame in the AP.
    Type: Application
    Filed: June 29, 2018
    Publication date: October 25, 2018
    Inventors: Jee Yon CHOI, Jae Woo PARK, Hyoung Jin KWON, Sok Kyu LEE
  • Method and apparatus for discovery of sector in wireless local area network system
    Patent number: 10098054
    Abstract: Provided is a sector discovery apparatus and method, the method including setting, by an AP in a WLAN system, an omni-beacon interval for transmitting an omnidirectional beacon and sector beacon intervals for transmitting a sector beacon with respect to one of a plurality of sectors which are spatially divided, transmitting the sector beacon to a current sector among the plurality of sectors, transmitting, to the current sector, a transmission frame indicating sectorized transmission or a transmission frame indicating omnidirectional transmission, in a sector interval between the sector beacon intervals, and receiving, from a terminal located in the current sector, a response frame indicating an association performed by receiving the transmission frame indicating the sectorized transmission.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: October 9, 2018
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jae Seung Lee, Min Ho Cheong, Hyoung Jin Kwon, Jae Woo Park, Sok Kyu Lee
  • Inference alignment (IA) method for uplink in wireless local area network (WLAN) system, access point (AP) and user terminal for performing the same
    Patent number: 10091794
    Abstract: An interference alignment (AI) method for an uplink in a wireless local area network (WLAN) system, an access point (AP) and a user terminal for performing the same, and the AP that may select an interference space, broadcast information on the selected interference space, select a user terminal to be assigned a data transmission opportunity based on leakage of interference (LIF) information received from at least one user terminal, receive data from the user terminal, and decode the data using a minimum square error (MMSE) based receiving filter.
    Type: Grant
    Filed: April 18, 2016
    Date of Patent: October 2, 2018
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Min Ho Cheong, Hyoung Jin Kwon, Sok Kyu Lee, Jae Seung Lee
  • APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING STREAMING DATA USING MULTIPLE PATHS
    Publication number: 20180262547
    Abstract: The present invention relates to an apparatus and method for transmitting/receiving streaming data using multiple paths, in which the streaming data is smoothly reproduced without being interrupted, and more particularly, to an apparatus and method for transmitting/receiving streaming data using multiple paths, in which exchange of the streaming data is performed in real-time using the multiple paths regardless of obstacles. The method for transmitting streaming data using multiple paths includes managing and maintaining a path list including sequence information about a transmission path capable of transmitting data, framing the streaming data, and transmitting the framed streaming data via the transmission path according to the sequence information.
    Type: Application
    Filed: May 14, 2018
    Publication date: September 13, 2018
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Hyoung Jin Kwon, Jin Kyeong Kim, Woo Yong Lee, Kyeongpyo Kim
  • METHOD FOR TRANSMITTING AND RECEIVING DATA IN COOPERATIVE COMMUNICATION SYSTEM, AND COOPERATIVE COMMUNICATION METHOD
    Publication number: 20180262263
    Abstract: A data transmission method of a source node in a cooperative communication system includes: performing a beamforming to a relay node; transmitting data to the relay node; performing a beamforming to a destination node; and transmitting data to the destination node.
    Type: Application
    Filed: May 14, 2018
    Publication date: September 13, 2018
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Kap-Seok CHANG, Woo-Yong LEE, Kyeongpyo KIM, Hyoung-Jin KWON, Hyun-Kyu CHUNG
  • Method for transmitting and receiving data in wireless local area network and apparatus for the same
    Patent number: 10075316
    Abstract: Disclosed are a method and an apparatus for transmitting and receiving data in a Wireless Local Area Network (WLAN) system. A method for transmitting data may comprise generating a physical layer (PHY) frame including a payload in which a plurality of Medium Access Control protocol data units (MPDUs) are multiplexed; and transmitting the PHY frame, wherein the PHY frame includes information on subcarriers occupied by each of the plurality of MPDUs in an Orthogonal Frequency Division Multiplexing (OFDM) symbol of the payload. Therefore, data transmission efficiency in a WLAN system can be enhanced.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: September 11, 2018
    Assignee: NEWRACOM, INC.
    Inventors: Jong-Ee Oh, Yongjin Kwon, Hyungu Park, Je-Hun Lee, Hong Soog Kim, Hyoung Jin Kwon
  • Method for allocating resources in wireless LAN system and wireless LAN system
    Patent number: 10070448
    Abstract: Provided are a method of allocating resources in a wireless local area network (WLAN) system and the WLAN system including an access point (AP) to allocate a resource for communication between a relay and a station associated with the relay, the relay to allocate a restricted access window (RAW) or a slot for communication with a station based on the allocated resource, and the station to communicate with the relay based on the allocated RAW or the allocated slot.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: September 4, 2018
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jae Seung Lee, Min Ho Cheong, Hyoung Jin Kwon, Sok Kyu Lee, Wun Cheol Jeong, Chang Sub Shin, Cheol Sig Pyo
  • Communication method and communication device in wireless LAN system that supports multi-bandwidth
    Patent number: 10051625
    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: June 13, 2013
    Date of Patent: August 14, 2018
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Hee Jung Yu, Min Ho Cheong, Jae Seung Lee, Hyoung Jin Kwon, Sok Kyu Lee
  • Uplink multi-user multiple-input and multiple-output (UL MU-MIMO) transmission request method in UL MU-MIMO communication
    Patent number: 10038635
    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 transmitting, to each of a plurality of stations (STAs), an uplink multi-user request (UL MU request) frame requesting transmission of a data frame, and receiving, from each of the plurality of STAs, the data frame during an identical period of time based on an identical reception intensity, wherein the UL MU request frame includes at least one of information on a transmission time of the data frame and information on a reception intensity of the data frame in the AP.
    Type: Grant
    Filed: August 25, 2016
    Date of Patent: July 31, 2018
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSITUTE
    Inventors: Jee Yon Choi, Jae Woo Park, Hyoung Jin Kwon, Sok Kyu Lee
  • COMMUNICATION METHOD AND FRAME STRUCTURE FOR A COORDINATOR DEVICE, SOURCE DEVICE AND RELAY DEVICE IN A WIRELESS SYSTEM
    Publication number: 20180184335
    Abstract: Provided is a communication method of a coordinator in a wireless networks system that uses a reservation-based media access control (MAC). The communication method includes receiving, from a source device, a frame that requests a reservation resource for a relay device, to enable a frame that the source device transmits to a destination device to be relayed via the relay device, and allocating the reservation resource for the relay device, in response to the request.
    Type: Application
    Filed: February 23, 2018
    Publication date: June 28, 2018
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Hyoung Jin KWON, Yong Sun KIM, Kap Seok CHANG, Seung Eun HONG, Sung Geun JIN, Woo Yong LEE, Hyun Kyu CHUNG
  • APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING DATA IN WIRELESS COMMUNICATION SYSTEM
    Publication number: 20180146415
    Abstract: Methods for transmitting and receiving data of a station includes setting a direct route to a corresponding station and a relay route to a relay device, selecting one route as between the direct route and relay route, and transmitting and receiving data through the selected route. A non-transitory computer-readable storage medium may store a program including instructions to cause a computer to perform the method. The setting may be performed by a processor and the transmitting and receiving may be performed respectively by a transmitter and a receiver.
    Type: Application
    Filed: January 22, 2018
    Publication date: May 24, 2018
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Hyoung Jin KWON, Jin Kyeong KIM, Woo Yong LEE, Yong Sun KIM, Kyeongpyo KIM