公开(公告)号：US12143919B2

公开(公告)日：2024-11-12

申请号：US18199370

申请日：2023-05-19

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

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

IPC: H04W48/08 ,  H04L12/46 ,  H04W48/12 ,  H04W48/16 ,  H04W48/20 ,  H04W74/00 ,  H04W74/08 ,  H04W84/12 ,  H04W88/08 ,  H04W74/0808

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：US12058358B2

公开(公告)日：2024-08-06

申请号：US17512584

申请日：2021-10-27

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

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

IPC: H04N19/46 ,  H04N19/105 ,  H04N19/137 ,  H04N19/159 ,  H04N19/176

CPC classification number: H04N19/46 ,  H04N19/105 ,  H04N19/137 ,  H04N19/159 ,  H04N19/176

Abstract: The present disclosure relates to a method and apparatus for processing a video signal and, more specifically, comprises the steps of: parsing, from a bitstream, an adaptive motion vector resolution (AMVR) enabled flag (sps_amvr_enabled_flag) indicating whether or not adaptive motion vector differential resolution is used; parsing, from the bitstream, an affine enabled flag (sps_affine_enabled_flag) indicating whether or not affine motion compensation is usable; on the basis of the affine enabled flag, determining whether or not the affine motion compensation is usable; when the affine motion compensation is usable, determining, on the basis of the AMVR enabled flag, whether or not the adaptive motion vector differential resolution is used; and, when the adaptive motion vector differential resolution is used, parsing, from the bitstream, an affine AMVR enabled flag (sps_affine_amvr_enabled flag) indicating whether or not the adaptive motion vector differential resolution is usable for the affine motion compensation.

公开(公告)号：US11991032B2

公开(公告)日：2024-05-21

申请号：US17895929

申请日：2022-08-25

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

Inventor： Juhyung Son ,  Jinsam Kwak ,  Geonjung Ko

IPC: H04L27/26 ,  H04L5/00 ,  H04W24/08 ,  H04W72/0446 ,  H04W74/00 ,  H04W74/08 ,  H04W74/0808 ,  H04W74/0833 ,  H04W80/02 ,  H04W80/08 ,  H04W84/12

CPC classification number: H04L27/2613 ,  H04L5/0055 ,  H04L5/0094 ,  H04W24/08 ,  H04W72/0446 ,  H04W74/004 ,  H04W74/0808 ,  H04W74/0833 ,  H04W80/02 ,  H04W80/08 ,  H04L27/26134 ,  H04W84/12

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 PPD U (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.

公开(公告)号：US11991031B2

公开(公告)日：2024-05-21

申请号：US17895883

申请日：2022-08-25

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

Inventor： Juhyung Son ,  Jinsam Kwak ,  Geonjung Ko

IPC: H04L27/26 ,  H04L5/00 ,  H04W24/08 ,  H04W72/0446 ,  H04W74/00 ,  H04W74/08 ,  H04W74/0808 ,  H04W74/0833 ,  H04W80/02 ,  H04W80/08 ,  H04W84/12

CPC classification number: H04L27/2613 ,  H04L5/0055 ,  H04L5/0094 ,  H04W24/08 ,  H04W72/0446 ,  H04W74/004 ,  H04W74/0808 ,  H04W74/0833 ,  H04W80/02 ,  H04W80/08 ,  H04L27/26134 ,  H04W84/12

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 PPD U (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.

公开(公告)号：US11765768B2

公开(公告)日：2023-09-19

申请号：US17742406

申请日：2022-05-12

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

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

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

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.

公开(公告)号：US11764896B2

公开(公告)日：2023-09-19

申请号：US17157996

申请日：2021-01-25

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

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

IPC: H04W80/02 ,  H04L1/00 ,  H04L1/1607 ,  H04W72/0446 ,  H04W72/542

CPC classification number: H04L1/0008 ,  H04L1/1614 ,  H04L1/1621 ,  H04W72/0446 ,  H04W72/542 ,  H04W80/02

Abstract: The present invention relates to a method for transmitting an aggregate MPDU and a response frame thereto and a wireless communication terminal using the same, and more particularly, to a wireless communication method and a wireless communication terminal for setting various formats of the aggregate MPDU and the response frame thereto and performing an efficient data communication by using the same. To this end, provided are a wireless communication terminal including: a processor; and a communication unit, wherein the processor receives an aggregate MPDU (A-MPDU) consisting of one or more MAC protocol data units (MPDUs), determines a format of a response frame for the received A-MPDU, and
transmits a response frame of the determined format, wherein the format of the response frame for the A-MPDU is determined based on at least one of the number of traffic IDs (TIDs) soliciting an immediate response in MPDU(s) successfully received in the A-MPDU and MPDU delimiter information of the A-MPDU and a wireless communication method using the same.

公开(公告)号：US11737152B2

公开(公告)日：2023-08-22

申请号：US17700490

申请日：2022-03-22

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

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

IPC: H04W74/00 ,  H04W74/08 ,  H04B7/0417 ,  H04B7/06 ,  H04W84/12

CPC classification number: H04W74/0866 ,  H04B7/0417 ,  H04B7/0617 ,  H04B7/0632 ,  H04W84/12

Abstract: Provided is a wireless communication terminal that wirelessly communicates. the wireless communication terminal includes: a transceiver for transmitting and receiving a wireless signal; and a processor for processing the wireless signal. The processor is configured to perform a transmission based on a transmission opportunity (TXOP) limit which is a maximum value of a TXOP, which is a time interval in which a wireless communication terminal has a right to initiate a frame exchange sequence in a wireless medium.

公开(公告)号：US11700546B2

公开(公告)日：2023-07-11

申请号：US16928754

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

CPC classification number: H04W28/06 ,  H04W28/02 ,  H04W28/14 ,  H04W74/006 ,  H04W76/11 ,  H04W74/0816 ,  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：US11683719B2

公开(公告)日：2023-06-20

申请号：US17549874

申请日：2021-12-14

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

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

IPC: H04W28/04 ,  H04W28/06 ,  H04L1/1607 ,  H04L1/1867 ,  H04W28/02 ,  H04L1/1829 ,  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：US11570478B2

公开(公告)日：2023-01-31

申请号：US17697811

申请日：2022-03-17

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

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

IPC: H04N19/61 ,  H04N19/12 ,  H04N19/625 ,  H04N19/176

Abstract: A video signal processor is configured to: obtain at least one transform block for a residual signal of a current block from a video signal bitstream, wherein the transform block comprises a plurality of transform coefficients two-dimensionally arranged, determine, on the basis of length information of a first side of the transform block, a horizontal transform kernel for horizontal transformation of the transform block, regardless of a length of a second side of the transform block, which is orthogonal to the first side, determine, on the basis of length information of the second side, a vertical transform kernel for vertical transformation of the transform block, regardless of a length of the first side, obtain the residual signal of the current block by performing, on the transform block, inverse transformation using the horizontal transform kernel and the vertical transform kernel, and reconstruct the current block based on the residual signal.