公开(公告)号：US11570443B2

公开(公告)日：2023-01-31

申请号：US16964967

申请日：2019-01-25

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

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

IPC: H04N19/105 ,  H04N19/139 ,  H04N19/176 ,  H04N19/513

Abstract: A video signal processing method and apparatus for encoding or decoding a video signal is disclosed. More particularly, a video signal processing method and a video signal processing apparatus using the same are disclosed, wherein a method for processing a video signal comprises the steps of: obtaining a set of control point motion vectors for prediction of a current block; obtaining the motion vector of each sub-block of the current block using control point motion vectors of the set of control point motion vectors; obtaining a predictor of the each sub-block of the current block using the motion vectors of the each sub-block; obtaining a predictor of the current block by combining predictors of the each sub-block; and restoring the current block using the predictor of the current block.

公开(公告)号：US11483865B2

公开(公告)日：2022-10-25

申请号：US17113026

申请日：2020-12-05

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

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

IPC: H04W74/08 ,  H04W40/00 ,  H04W72/04 ,  H04W84/12 ,  H04W88/08 ,  H04W80/02

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：US11451791B2

公开(公告)日：2022-09-20

申请号：US16964949

申请日：2019-01-25

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

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

IPC: H04N19/159 ,  H04N19/11 ,  H04N19/176 ,  H04N19/593 ,  H04N19/117 ,  H04N19/105 ,  H04N19/124 ,  H04N19/13

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.

公开(公告)号：US11375538B2

公开(公告)日：2022-06-28

申请号：US16945937

申请日：2020-08-03

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

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

IPC: H04W74/00 ,  H04W84/12 ,  H04W74/08 ,  H04W28/04 ,  H04W28/06 ,  H04W24/02 ,  H04B7/26 ,  H04L27/26 ,  H04L69/22 ,  H04W52/50

Abstract: Provided is a wireless communication terminal. The wireless communication terminal includes a transceiver; and a processor. The processor is configured to receive a signaling field of a first PLCP Protocol Data Unit (PPDU) through the transceiver, and access a channel based on information identifying a Basic Service Set (BSS) indicated by the signaling field.

公开(公告)号：US11330629B2

公开(公告)日：2022-05-10

申请号：US16942765

申请日：2020-07-30

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

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

IPC: H04W74/08 ,  H04W84/12 ,  H04W52/24 ,  H04B17/318

Abstract: Provided is a wireless communication terminal that communicates wirelessly. The wireless communication terminal includes: a transceiver; and a processor. The processor receives a first PLCP Protocol Data Unit (PPPU) through the transceiver, and transmits a second PPDU based on Basic Service Set (BSS) information indicated by the first PPDU.

公开(公告)号：US11330628B2

公开(公告)日：2022-05-10

申请号：US16942764

申请日：2020-07-30

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

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

IPC: H04W74/08 ,  H04W84/12 ,  H04W52/24 ,  H04B17/318

Abstract: Provided is a wireless communication terminal that communicates wirelessly. The wireless communication terminal includes: a transceiver; and a processor. The processor receives a first PLCP Protocol Data Unit (PPPU) through the transceiver, and transmits a second PPDU based on Basic Service Set (BSS) information indicated by the first PPDU.

公开(公告)号：US11304094B2

公开(公告)日：2022-04-12

申请号：US16928838

申请日：2020-07-14

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

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

IPC: H04W28/06 ,  H04W28/14 ,  H04W28/02 ,  H04W74/00 ,  H04W76/11 ,  H04W74/08 ,  H04W84/12

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 trigger frame for triggering that a frame for setting a link with a wireless communication terminal, which is an AP, is transmitted through UpLink Multi User (UL MU) transmission through the transmission/reception unit. The processor transmits the frame for setting the link through UL MU transmission based on the trigger frame.

公开(公告)号：US11284475B2

公开(公告)日：2022-03-22

申请号：US16590302

申请日：2019-10-01

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

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

IPC: H04W80/08 ,  H04W76/11 ,  H04W72/04 ,  H04W72/12 ,  H04W74/08

Abstract: Provided is a wireless communication terminal that wirelessly communicates. The wireless communication terminal includes a transceiver configured to transmit and receive wireless signals; and a processor configured to process the wireless signals. The processor is configured to: generate a trigger frame for triggering uplink transmission based random access of at least one wireless communication terminal, and insert the trigger frame into a physical layer protocol data unit (PPDU) to transmit the PPDU.

公开(公告)号：US11284108B2

公开(公告)日：2022-03-22

申请号：US16758046

申请日：2018-10-24

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

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

IPC: H04N19/11 ,  H04N19/593 ,  H04N19/136 ,  H04N19/176

Abstract: Disclosed are a video signal processing method and apparatus for encoding or decoding a video signal. In more detail, the video signal processing method includes receiving intra prediction mode information for a current block, wherein the intra prediction mode information indicates one of a plurality of intra prediction modes configuring an intra prediction mode set; and decoding the current block based on the received intra prediction mode information, wherein the intra prediction mode set comprises a plurality of angle modes, and the plurality of angle modes comprises a basic angle mode and an extended angle mode, wherein the extended angle mode is signaled based on the basic angle mode.

公开(公告)号：US20220029669A1

公开(公告)日：2022-01-27

申请号：US17494831

申请日：2021-10-06

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

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

IPC: H04B7/0452 ,  H04B7/02 ,  H04L5/00

Abstract: The present invention relates to a wireless communication method and a wireless communication terminal for signaling a multi-user packet. More specifically, provided are a wireless communication terminal including a communication unit; and a processor configured to process signals transmitted and received through the communication unit, wherein the processor receives, through the communication unit, a high efficiency multi-user PHY protocol data unit (HE MU PPDU), wherein a preamble of the HE MU PPDU includes high efficiency signal A field (HE-SIG-A) and high efficiency signal B field (HE-SIG-B), and decodes the received HE MU PPDU based on information obtained from the HE-SIG-A, wherein a configuration of the HE-SIG-B is identified based on information obtained from at least one subfield of the HE-SIG-A and a wireless communication method using the same.