Patents by Inventor Geonjung KO

Geonjung KO 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).

  • Wireless communication method and wireless communication terminal using same
    Patent number: 11552760
    Abstract: The present invention relates to a wireless communication method for suggesting a packet preamble structure for efficient communication in a wireless communication environment in which a legacy terminal and a non-legacy terminal are mixed, and a wireless communication terminal using the same. For this, the present invention provides a wireless communication method including: generating a packet including a first preamble and a second preamble, wherein a first symbol and a second symbol of the second preamble are modulated using binary phase shift keying (BPSK); and transmitting the generated packet and a wireless communication terminal using the same.
    Type: Grant
    Filed: January 22, 2021
    Date of Patent: January 10, 2023
    Assignees: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC., SK TELECOM CO, LTD.
    Inventors: Jinsam Kwak, Juhyung Son, Geonjung Ko
  • WIRELESS COMMUNICATION METHOD AND WIRELESS COMMUNICATION TERMINAL, WHICH USE DISCONTINUOUS CHANNEL
    Publication number: 20230007638
    Abstract: The present invention relates to a wireless communication method and a wireless communication terminal using a non-contiguous channel. To this end, provided are a wireless communication terminal including a processor and a transceiver, wherein the processor receives a wireless packet through the communication unit, obtains total bandwidth information indicated via a bandwidth field of HE-SIG-A of the received packet, obtains information of an unassigned resource unit via at least one of the bandwidth field of the HE-SIG-A and a subfield of HE-SIG-B of the received packet, and decodes the received packet based on the total bandwidth information and the information of the unassigned resource unit and a wireless communication method using the same.
    Type: Application
    Filed: September 9, 2022
    Publication date: January 5, 2023
    Inventors: Juhyung SON, Jinsam KWAK, Geonjung KO, Woojin AHN
  • Wireless communication method for transmitting ACK and wireless communication terminal using same
    Patent number: 11540169
    Abstract: Provided is a wireless communication terminal that communicates wirelessly. The wireless communication terminal includes a transceiver, and a processor. The processor is configured to receive an Aggregate-MAC Protocol Data Unit (A-MPDU) from an originator using the transceiver, and when receiving all MPDUs included in the A-MPDU, transmit to the originator a block ACK (BA) frame signaling that all MPDUs included in the A-MPDU are received without a bitmap indicating whether each MPDU included in the A-MPDU is received.
    Type: Grant
    Filed: November 5, 2018
    Date of Patent: December 27, 2022
    Assignees: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC., SK TELECOM CO., LTD.
    Inventors: Woojin Ahn, Juhyung Son, Jinsam Kwak, Geonjung Ko
  • Method and device for processing video signal using multiple transform kernels
    Patent number: 11539973
    Abstract: A method for processing a video signal comprises the steps of: obtaining, from the video signal, an intra sub-partitions (ISP) mode flag indicating whether the ISP mode is applied to a current block; when the ISP mode is applied to the current block, obtaining, from the video signal, an ISP partitioning flag indicating a partitioning direction of the current block; partitioning the current block into a plurality of transform blocks on the basis of the partitioning direction; generating residual blocks of the transform blocks by performing an inverse transformation on each of the transform blocks; and restoring the current block on the basis of the residual blocks.
    Type: Grant
    Filed: May 11, 2021
    Date of Patent: December 27, 2022
    Assignee: HUMAX CO., LTD.
    Inventors: Jaehong Jung, Juhyung Son, Dongcheol Kim, Geonjung Ko, Jinsam Kwak
  • CHANNEL ACCESS METHOD FOR DATA TRANSMISSION, AND WIRELESS COMMUNICATION METHOD AND WIRELESS COMMUNICATION TERMINAL USING SAME
    Publication number: 20220407757
    Abstract: The present invention relates to a channel access method for data transmission, and a wireless communication method and a wireless communication terminal using the same, and more particularly, to a wireless communication method and a wireless communication terminal for efficiently scheduling data transmissions of a plurality of terminals. To this end, provided are a wireless communication terminal comprising a processor and a transceiver, wherein the processor receives a trigger frame indicating an uplink multi-user transmission, and transmits an uplink multi-user PLCP protocol data unit (PPDU) in response to the received trigger frame, wherein the trigger frame and a non-legacy preamble of the uplink multi-user PPDU contains remaining transmission opportunity (TXOP) time information of a current TXOP and a wireless communication method using the same.
    Type: Application
    Filed: August 25, 2022
    Publication date: December 22, 2022
    Inventors: Juhyung SON, Jinsam KWAK, Geonjung KO
  • Wireless communication terminal and wireless communication method for multiuser EDCA operation
    Patent number: 11528747
    Abstract: The present invention relates to a wireless communication terminal and a wireless communication method for a multi-user EDCA operation, and more particularly, to a wireless communication terminal and a wireless communication method for performing a combination of a legacy EDCA operation and a multi-user EDCA operation. To this end, provided are a wireless communication terminal including: a communication unit; and a processor configured to control transmission and reception of a wireless signal through the communication unit, wherein the processor updates enhanced distributed channel access (EDCA) parameters for channel access, the EDCA parameters being updated based on an EDCA parameter set selected from a first EDCA parameter set and a second EDCA parameter set, and performs channel access based on the updated EDCA parameters and a wireless communication method using the same.
    Type: Grant
    Filed: February 26, 2021
    Date of Patent: December 13, 2022
    Assignees: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC., SK TELECOM CO., LTD.
    Inventors: Woojin Ahn, Juhyung Son, Jinsam Kwak, Geonjung Ko
  • Wireless communication method using enhanced distributed channel access, and wireless communication terminal using same
    Patent number: 11523464
    Abstract: Provided is a wireless communication terminal that communicates wirelessly. The wireless communication terminal includes a transceiver and a processor for processing a radio signal received through the transceiver or a radio signal to be transmitted through the transceiver. The processor accesses a channel according to according to a priority of data to be transmitted to the base communication terminal by the wireless communication terminal.
    Type: Grant
    Filed: July 23, 2021
    Date of Patent: December 6, 2022
    Assignees: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC., SK TELECOM CO., LTD.
    Inventors: Woojin Ahn, Juhyung Son, Geonjung Ko, Jinsam Kwak
  • METHOD AND DEVICE FOR PROCESSING VIDEO SIGNAL USING MPM CONFIGURATION METHOD FOR MULTIPLE REFERENCE LINES
    Publication number: 20220385893
    Abstract: A video signal processing device comprises a processor configured to: obtain an index of intra prediction mode of a current block, obtain a reference sample line index for the current block, and generate a plurality of reference samples and a plurality of additional reference samples based on a direction of the intra prediction mode. The direction of the intra prediction mode is determined based on the index, and a number of the plurality of additional reference samples determined based on the reference sample line index and/or a ratio of a width of the current block and a height of the current block.
    Type: Application
    Filed: August 10, 2022
    Publication date: December 1, 2022
    Inventors: Dongcheol KIM, Geonjung KO, Jaehong JUNG, Juhyung SON, Jinsam KWAK
  • Wireless communication method using enhanced distributed channel access, and wireless communication terminal using same
    Patent number: 11516879
    Abstract: Provided is a wireless communication terminal that communicates wirelessly. The wireless communication terminal includes a transceiver and a processor for processing a radio signal received through the transceiver or a radio signal to be transmitted through the transceiver. The processor accesses a channel according to according to a priority of data to be transmitted to the base communication terminal by the wireless communication terminal.
    Type: Grant
    Filed: July 23, 2021
    Date of Patent: November 29, 2022
    Assignees: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC., SK TELECOM CO., LTD.
    Inventors: Woojin Ahn, Juhyung Son, Geonjung Ko, Jinsam Kwak
  • WIRELESS COMMUNICATION METHOD FOR TRANSMITTING ACK AND WIRELESS COMMUNICATION TERMINAL USING SAME
    Publication number: 20220377606
    Abstract: Provided is a wireless communication terminal that communicates wirelessly. The terminal includes: a transceiver; and a processor. The terminal includes a transceiver, and a processor. The processor is configured to receive an Aggregate-MAC Protocol Data Unit (A-MPDU) from an originator using the transceiver, and when receiving all MPDUs included in the A-MPDU, transmit to the originator a block ACK (BA) frame signaling that all MPDUs included in the A-MPDU are received without a bitmap indicating whether each MPDU included in the A-MPDU is received.
    Type: Application
    Filed: August 3, 2022
    Publication date: November 24, 2022
    Inventors: Woojin AHN, Juhyung Son, Jinsam Kwak, Geonjung Ko
  • WIRELESS COMMUNICATION METHOD FOR TRANSMITTING ACK AND WIRELESS COMMUNICATION TERMINAL USING SAME
    Publication number: 20220377607
    Abstract: Provided is a wireless communication terminal that communicates wirelessly. The terminal includes: a transceiver; and a processor. The terminal includes a transceiver, and a processor. The processor is configured to receive an Aggregate-MAC Protocol Data Unit (A-MPDU) from an originator using the transceiver, and when receiving all MPDUs included in the A-MPDU, transmit to the originator a block ACK (BA) frame signaling that all MPDUs included in the A-MPDU are received without a bitmap indicating whether each MPDU included in the A-MPDU is received.
    Type: Application
    Filed: August 3, 2022
    Publication date: November 24, 2022
    Inventors: Woojin AHN, Juhyung SON, Jinsam KWAK, Geonjung KO
  • VIDEO SIGNAL PROCESSING METHOD AND APPARATUS USING MULTIPLE TRANSFORM KERNEL
    Publication number: 20220368949
    Abstract: A video signal processing method may comprise the steps of: confirming a prediction mode applied to a current coding unit; confirming whether a plurality of preset conditions are satisfied on the basis of at least one of the prediction mode of the current coding unit and a size of the current coding unit; parsing a first syntax element indicating a transform kernel applied to a transform unit included in the current coding unit when the plurality of preset conditions are satisfied; determining a transform kernel applied to horizontal and vertical directions of the current transform unit on the basis of the first syntax element; and generating a residual signal of the current transform unit by performing an inverse transform on the current transform unit using the determined transform kernel.
    Type: Application
    Filed: July 19, 2022
    Publication date: November 17, 2022
    Inventors: Jaehong JUNG, Juhyung SON, Dongcheol KIM, Geonjung KO, Jinsam KWAK
  • VIDEO SIGNAL PROCESSING METHOD AND DEVICE
    Publication number: 20220368924
    Abstract: Disclosed is a video signal processing method and device for encoding or decoding a video signal. More specifically, disclosed are a video signal processing method and a video signal processing device for performing the method, the method comprising: obtaining reference line information indicating a reference line for intra prediction of a current block among a plurality of reference lines comprising neighboring samples of the current block; determining, on the basis of the reference line information, an intra prediction mode for the current block among a plurality of intra prediction modes constituting an intra prediction mode set; and decoding the current block on the basis of a plurality of reference samples on the reference line according to the reference line information and the determined intra prediction mode.
    Type: Application
    Filed: July 28, 2022
    Publication date: November 17, 2022
    Inventors: Dongcheol KIM, Geonjung KO, Jaehong JUNG, Juhyung SON, Jinsam KWAK
  • Wireless communication method and wireless communication terminal for spatial reuse operation
    Patent number: 11503636
    Abstract: The present invention relates a wireless communication method and a wireless communication terminal for supporting a spatial reuse operation of an overlapping basic service set to efficiently use a wireless resource. To this end, provided are a base wireless communication terminal including: a processor; and a communication unit, wherein the processor receives a PHY protocol data unit (PPDU) through the communication unit, determines whether the PPDU contains an intra-BSS frame or contains an inter-BSS frame based on preamble information of the PPDU, and performs either a first operation or a second operation distinct from each other according to a determination result and a wireless communication method using the same.
    Type: Grant
    Filed: December 5, 2020
    Date of Patent: November 15, 2022
    Assignees: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC., SK TELECOM CO., LTD.
    Inventors: Geonjung Ko, Juhyung Son, Woojin Ahn, Jinsam Kwak
  • WIRELESS COMMUNICATION TERMINAL AND WIRELESS COMMUNICATION METHOD FOR RANDOM ACCESS-BASED UPLINK MULTI-USER TRANSMISSION
    Publication number: 20220361245
    Abstract: Provided are a wireless communication terminal including: a processor; and a communication unit, wherein the processor obtains a backoff counter for an OFDMA-based random access of the terminal, wherein the backoff counter is obtained within a range of a contention window for the uplink OFDMA-based random access, receives a trigger frame indicating an uplink multi-user transmission, when one or more resource unit(s) in which random access can be performed is indicated by the trigger frame, decrements the backoff counter based on a number of resource units(s) in which random access can be performed, and when the backoff counter is 0 or decremented to 0, performs an uplink multi-user transmission through a selected resource unit among the resource units(s) and a wireless communication method using the same.
    Type: Application
    Filed: July 26, 2022
    Publication date: November 10, 2022
    Inventors: Woojin AHN, Juhyung SON, Jinsam KWAK, Geonjung KO
  • METHOD AND DEVICE FOR PROCESSING VIDEO SIGNAL BY USING CROSS-COMPONENT LINEAR MODEL
    Publication number: 20220360786
    Abstract: The video signal processing method comprises the steps of: downsampling luma components of reconstructed blocks adjacent to a current block; acquiring a maximum luma value from among the downsampled luma components based on a first index; acquiring a next-highest maximum luma value from among the downsampled luma components based on a second index; acquiring a maximum average luma value based on an average value of the maximum luma value and the next-highest maximum luma value; acquiring a next-lowest minimum luma value from among the downsampled luma components based on a third index; acquiring a minimum luma value from among the downsampled luma components based on a fourth index; and acquiring a minimum average luma value based on the next-lowest minimum luma value and the minimum luma value.
    Type: Application
    Filed: July 21, 2022
    Publication date: November 10, 2022
    Inventors: Dongcheol KIM, Geonjung KO, Jaehong JUNG, Juhyung SON, Jinsam KWAK
  • Wireless communication method and wireless communication terminal for spatial reuse operation
    Patent number: 11483865
    Abstract: The present invention relates a wireless communication method and a wireless communication terminal for supporting a spatial reuse operation of an overlapping basic service set to efficiently use a wireless resource. To this end, provided are a base wireless communication terminal including: a processor; and a communication unit, wherein the processor receives a PHY protocol data unit (PPDU) through the communication unit, determines whether the PPDU contains an intra-BSS frame or contains an inter-BSS frame based on preamble information of the PPDU, and performs either a first operation or a second operation distinct from each other according to a determination result and a wireless communication method using the same.
    Type: Grant
    Filed: December 5, 2020
    Date of Patent: October 25, 2022
    Assignees: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC., SK TELECOM CO., LTD.
    Inventors: Geonjung Ko, Juhyung Son, Woojin Ahn, Jinsam Kwak
  • Multi-user(MU) transmission for soliciting acknowledgement(ACK) from a target base station
    Patent number: 11477844
    Abstract: In order to efficiently schedule data transmission of a plurality of terminals, the wireless communication terminal receives a trigger frame indicating uplink multi-user transmission, and transmits an uplink multi-user PPDU (PLCP Protocol Data Unit) in response to the received trigger frame. In this case, the trigger frame and the non-legacy preamble of the uplink multi-user PPDU include remaining TXOP (Transmission Opportunity) time information of the uplink multi-user transmission process.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: October 18, 2022
    Assignees: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC., SK TELECOM CO., LTD.
    Inventors: Juhyung Son, Jinsam Kwak, Geonjung Ko
  • WIRELESS COMMUNICATION METHOD USING TRIGGER INFORMATION, AND WIRELESS COMMUNICATION TERMINAL USING SAME
    Publication number: 20220329393
    Abstract: Provided is a wireless communication terminal that communicates wirelessly. The wireless communication terminal includes: a transceiver; and a processor. The processor receiving trigger information from a base wireless communication terminal using the transceiver, and transmits an Aggregate-MAC Protocol Data Unit (A-MPDU) to the base wireless communication terminal based on the trigger information.
    Type: Application
    Filed: June 28, 2022
    Publication date: October 13, 2022
    Inventors: Woojin AHN, Juhyung SON, Geonjung KO, JINSAM KWAK
  • Wireless communication terminal and wireless communication method for random access-based uplink multi-user transmission
    Patent number: 11470643
    Abstract: Provided are a wireless communication terminal including: a processor; and a communication unit, wherein the processor obtains a backoff counter for an OFDMA-based random access of the terminal, wherein the backoff counter is obtained within a range of a contention window for the uplink OFDMA-based random access, receives a trigger frame indicating an uplink multi-user transmission, when one or more resource unit(s) in which random access can be performed is indicated by the trigger frame, decrements the backoff counter based on a number of resource units(s) in which random access can be performed, and when the backoff counter is 0 or decremented to 0, performs an uplink multi-user transmission through a selected resource unit among the resource units(s) and a wireless communication method using the same.
    Type: Grant
    Filed: November 22, 2020
    Date of Patent: October 11, 2022
    Assignees: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC., SK TELECOM CO., LTD.
    Inventors: Woojin Ahn, Juhyung Son, Jinsam Kwak, Geonjung Ko