Patents by Inventor Min-Ho Cheong

Min-Ho Cheong 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: 10555336
    Abstract: Provided are a terminal for requesting and acquiring information associated with a channel access in a wireless local area network (WLAN) and an apparatus for providing information associated with a channel access in a WLAN, and more particularly, the terminal for requesting and acquiring information associated with a channel access in a WLAN according to an example embodiment may verify whether a beacon is received during a predetermined beacon interval, transmit a group and slot information request signal when the beacon is verified not to be received, and receive a group and slot information response signal in response to the group and slot information request signal.
    Type: Grant
    Filed: June 13, 2013
    Date of Patent: February 4, 2020
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Hyoung Jin Kwon, Jae Seung Lee, Min Ho Cheong, Hee Jung Yu, Sok Kyu Lee
  • Publication number: 20200015269
    Abstract: Disclosed are a method and apparatus for an access point (AP) to control channel access of a station in a wireless local area network (WLAN) system. An AP according to one embodiment may determine resource allocation information for protecting a resource for a station not referring to traffic indication map (TIM) information. The determined resource allocation information is transmitted to a station referring to the TIM information, and the station referring to the TIM information does not conduct channel access in a time period specified in the resource allocation information.
    Type: Application
    Filed: September 18, 2019
    Publication date: January 9, 2020
    Inventors: Hyoung Jin KWON, Hee Jung YU, Sok Kyu LEE, Jae Seung LEE, Min Ho CHEONG
  • Publication number: 20200014427
    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: Application
    Filed: September 20, 2019
    Publication date: January 9, 2020
    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
  • Patent number: 10499405
    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: July 26, 2018
    Date of Patent: December 3, 2019
    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
  • Publication number: 20190349903
    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: Application
    Filed: June 27, 2019
    Publication date: November 14, 2019
    Inventors: Min ho CHEONG, Sok Kyu LEE, Hyoung Jin KWON, Jae Seung LEE
  • Publication number: 20190333265
    Abstract: Disclosed is an electronic device. The electronic device includes at least one processor, wherein the at least one processor generates a plurality of images corresponding to a plurality of view vectors associated with one point on a virtual three-dimensional space, sets a quality of at least one image of the plurality of images with a higher quality than remaining images, and synthesizes the plurality of images including the at least one image. In addition, various embodiments understood from the disclosure may be possible.
    Type: Application
    Filed: January 4, 2018
    Publication date: October 31, 2019
    Inventors: Min Jung KIM, Yo Han LEE, Cheol Ho CHEONG
  • 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
  • Patent number: 10462817
    Abstract: Disclosed are a method and apparatus for an access point (AP) to control channel access of a station in a wireless local area network (WLAN) system. An AP according to one embodiment may determine resource allocation information for protecting a resource for a station not referring to traffic indication map (TIM) information. The determined resource allocation information is transmitted to a station referring to the TIM information, and the station referring to the TIM information does not conduct channel access in a time period specified in the resource allocation information.
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: October 29, 2019
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Hyoung Jin Kwon, Hee Jung Yu, Sok Kyu Lee, Jae Seung Lee, Min Ho Cheong
  • 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
  • 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
  • Publication number: 20190289539
    Abstract: A scanning method in a wireless local area network (WLAN) system is provided. The scanning method includes transmitting, by a station, a probe request frame and receiving, by the station, a probe response frame from an access point (AP). The AP determines whether to transmit the probe response frame in response to the probe request frame using information indicated by the probe request frame.
    Type: Application
    Filed: June 4, 2019
    Publication date: September 19, 2019
    Inventors: Jae Seung LEE, Min ho CHEONG, Je Hun LEE, Ja Beom GU, Jae Woo PARK, Sok Kyu LEE
  • 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
  • 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
  • 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
  • Publication number: 20190222378
    Abstract: Provided are a transmitter and a method for transmitting a data block in a wireless communication system. The method comprises the following steps: deciding the number of bits (s) and encoders (NES) to allocate to one axis of a signal constellation; encoding an information bit based on the s and the NES and generating a coded block; parsing the coded block based on the s and the NES and generating a plurality of frequency sub-blocks; and transmitting the plurality of frequency sub-blocks to a receiver.
    Type: Application
    Filed: March 24, 2019
    Publication date: July 18, 2019
    Inventors: Jong Ee OH, Min Ho CHEONG, Sok Kyu LEE
  • 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
  • Patent number: 10356700
    Abstract: A scanning method in a wireless local area network (WLAN) system is provided. The scanning method includes transmitting, by a station, a probe request frame and receiving, by the station, a probe response frame from an access point (AP). The AP determines whether to transmit the probe response frame in response to the probe request frame using information indicated by the probe request frame.
    Type: Grant
    Filed: March 15, 2016
    Date of Patent: July 16, 2019
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jae Seung Lee, Min Ho Cheong, Je Hun Lee, Ja Beom Gu, Jae Woo Park, Sok Kyu Lee
  • 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
  • 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
  • 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