公开(公告)号：US12219600B2

公开(公告)日：2025-02-04

申请号：US18381167

申请日：2023-10-17

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC. ,  SK TELECOM CO., LTD.

Inventor： Geonjung Ko ,  Juhyung Son ,  Woojin Ahn ,  Jinsam Kwak

IPC: H04W74/0808 ,  H04W40/00 ,  H04W72/0446 ,  H04W74/08 ,  H04W80/02 ,  H04W84/12 ,  H04W88/08

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.

公开(公告)号：US12213173B2

公开(公告)日：2025-01-28

申请号：US18534621

申请日：2023-12-09

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

Inventor： Sanghyun Kim ,  Geonjung Ko ,  Juhyung Son ,  Jinsam Kwak

IPC: H04W74/0808 ,  H04W74/08 ,  H04W74/0833

Abstract: The present invention provides a channel switching method and device, the method performed by a multi-link device (MLD) comprising a plurality of stations, which respectively operate in a plurality of links, in a wireless communication system. Particularly, the MLD of the present invention may: receive a frame comprising channel switching information for channel switching from a first AP of a primary link from among the plurality of links; and determine whether or not channel switching is to be performed for a station connected to a second AP by means of a subsidiary link, on the basis of the channel switching information.

公开(公告)号：US12200200B2

公开(公告)日：2025-01-14

申请号：US18491003

申请日：2023-10-20

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

Inventor： Geonjung Ko ,  Dongcheol Kim ,  Juhyung Son ,  Jaehong Jung ,  Jinsam Kwak

IPC: H04N19/105 ,  H04N19/139 ,  H04N19/176 ,  H04N19/52 ,  H04N19/70

Abstract: Disclosed is a video signal processing method and device that encodes or decodes a video signal. In particular, the video signal processing method may comprise the steps of: parsing a first syntax element indicating whether a merge mode is applied to a current block; when the merge mode is applied to the current block, determining whether to parse a second syntax element on the basis of a first predefined condition, wherein the second syntax element indicates whether a first mode or a second mode is applied to the current block; when the first mode and the second mode are not applied to the current block, determining whether to parse a third syntax element on the basis of a second predefined condition; and determining a mode applied to the current block on the basis of the second syntax element or the third syntax element.

公开(公告)号：US12150105B2

公开(公告)日：2024-11-19

申请号：US18133520

申请日：2023-04-11

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

Inventor： Geonjung Ko ,  Juhyung Son ,  Woojin Ahn ,  Jinsam Kwak

IPC: H04W72/0453 ,  H04W48/18 ,  H04W74/00 ,  H04W24/02 ,  H04W84/12 ,  H04W88/06

Abstract: Provided is a wireless communication terminal that communicates wirelessly. The terminal includes: a transceiver; and a processor. The processor is configured to receive a frame through the transceiver, determine whether the frame is classified into an Intra-Basic Service Set (BSS) frame or an Inter-BSS frame according to a BSS from which the frame is transmitted, and access a channel according to whether the frame is an Intra-BSS frame or an Inter-BSS frame.

公开(公告)号：US12108340B2

公开(公告)日：2024-10-01

申请号：US18437244

申请日：2024-02-09

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

Inventor： Sanghyun Kim ,  Geonjung Ko ,  Juhyung Son ,  Jinsam Kwak

IPC: H04W52/02

CPC classification number: H04W52/0235

Abstract: Disclosed are a traffic transmission method and device, the method being performed by a terminal in a wireless communication system. Specifically, a non-access point (AP) STA of the present invention can receive, from an AP, a trigger frame triggering the transmission of a physical layer protocol data unit (PPDU). The trigger frame includes information indicating at least one traffic identifier (TID) that is allowed to be transmitted in a target wake time (TWT) period. The TWT period may indicate a period in which the transmission of traffic for the at least one TID having a specific transmission condition is allowed, and the transmission of traffic not having the specific transmission condition is restricted. Thereafter, the non-AP STA transmits a PPDU, including the traffic corresponding to the at least one TID, to the AP within the TWT period.

公开(公告)号：US12101814B2

公开(公告)日：2024-09-24

申请号：US18544403

申请日：2023-12-18

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

Inventor： Geonjung Ko ,  Juhyung Son ,  Sanghyun Kim ,  Jinsam Kwak

IPC: H04W4/00 ,  H04W24/10 ,  H04W74/08 ,  H04W74/0816

CPC classification number: H04W74/0816 ,  H04W24/10 ,  H04W74/0866

Abstract: A station in a wireless communication system is disclosed. The station includes: a transceiver; and a processor for controlling the transceiver. The processor receives a trigger frame for triggering uplink transmission from an access point (AP), and the trigger frame allocates, to the station, a part of a transmission opportunity (TXOP) acquired by the AP, as a shared TXOP, transmits a CTS frame as a response to the trigger frame, and switches a first enhanced distributed channel access (EDCA) parameter set used for channel access to a second EDCA parameter set based on transmission for the AP within the shared TXOP.

公开(公告)号：US12101501B2

公开(公告)日：2024-09-24

申请号：US18328246

申请日：2023-06-02

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

Inventor： Geonjung Ko ,  Dongcheol Kim ,  Juhyung Son ,  Jaehong Jung ,  Jinsam Kwak

IPC: H04N19/53 ,  H04N19/513 ,  H04N19/57

CPC classification number: H04N19/513 ,  H04N19/53 ,  H04N19/57

Abstract: A video signal decoding device comprising a processor, wherein the processor is configured to: obtain reference samples corresponding to a first side of a current block and reference samples corresponding to a second side of the current block, obtain a direct current (DC) value for prediction of the current block based on a reference sample set comprising at least some of the reference samples corresponding to the first side and the reference samples corresponding to the second side, and reconstruct the current block based on the DC value.

公开(公告)号：US12063545B2

公开(公告)日：2024-08-13

申请号：US18143315

申请日：2023-05-04

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC. ,  SK TELECOM CO., LTD.

Inventor： Woojin Ahn ,  Juhyung Son ,  Jinsam Kwak ,  Geonjung Ko

IPC: H04W28/04 ,  H04L1/1607 ,  H04L1/1829 ,  H04L1/1867 ,  H04W28/02 ,  H04W28/06 ,  H04W80/02 ,  H04L47/24

CPC classification number: H04W28/04 ,  H04L1/1614 ,  H04L1/1635 ,  H04L1/1864 ,  H04L1/1896 ,  H04W28/0205 ,  H04W28/06 ,  H04W28/065 ,  H04W80/02 ,  H04L47/24

Abstract: Provided is a wireless communication terminal that communicates wirelessly. The terminal includes: a transceiver; and a processor. The processor is configured to transmit first information on a fragmentation level to be used for data to be transmitted to a recipient by using the transceiver in an add Block ACK (ADDBA) setup procedure.

公开(公告)号：US12047562B2

公开(公告)日：2024-07-23

申请号：US18065839

申请日：2022-12-14

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

Inventor： Geonjung Ko ,  Dongcheol Kim ,  Juhyung Son ,  Jaehong Jung ,  Jinsam Kwak

IPC: H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/186 ,  H04N19/70

CPC classification number: H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/186 ,  H04N19/70

Abstract: A video signal processing method comprises the steps of: receiving information for prediction of a current block; determining whether or not a merge mode is applied to the current block on the basis of the information for prediction; when a merge mode is applied to the current block, obtaining a first syntax element indicating whether or not a combined prediction is applied to the current block, wherein the combined prediction indicates a prediction mode that combines inter-prediction and intra-prediction; generating an inter-prediction block and an intra-prediction block of the current block when the first syntax element indicates that the combined prediction is applied to the current block; and generating a combined prediction block of the current block by weighted-summing the inter-prediction block and the intra-prediction block.

公开(公告)号：US12035362B2

公开(公告)日：2024-07-09

申请号：US18219644

申请日：2023-07-07

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC. ,  SK TELECOM CO., LTD.

Inventor： Geonjung Ko ,  Juhyung Son ,  Woojin Ahn ,  Jinsam Kwak

IPC: H04W74/08 ,  H04L1/00 ,  H04L1/16 ,  H04L5/00 ,  H04L27/26 ,  H04W28/06 ,  H04W72/0446 ,  H04W72/51 ,  H04W74/00 ,  H04W74/0833 ,  H04W84/12

CPC classification number: H04W74/08 ,  H04L1/00 ,  H04L1/16 ,  H04L5/0007 ,  H04L27/2602 ,  H04L27/2603 ,  H04L27/2666 ,  H04W28/06 ,  H04W72/0446 ,  H04W72/51 ,  H04W74/00 ,  H04W74/0858 ,  H04W84/12 ,  H04L5/0048 ,  H04L27/26025

Abstract: Provided is a wireless communication terminal that wirelessly communicates with a base wireless communication terminal. The wireless communication terminal includes a transceiver, and a processor. The processor is configured to set an integer selected from a range of 0 to a value equal to or smaller than an OFDMA Contention Window (OCW) as a counter for random access, receive a trigger frame for triggering random access using one or more resource units (RUs) allocated for the random access from the base wireless communication terminal using the transceiver, decrement a value of the counter based on the one or more RUs allocated for the random access, randomly select one RU based on the one or more RUs allocated for the random access when the value of the counter is 0 or reaches 0, and attempt transmission to the base wireless communication terminal using the selected RU.