公开(公告)号：US12213188B2

公开(公告)日：2025-01-28

申请号：US18222425

申请日：2023-07-15

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

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

IPC: H04W74/00 ,  H04B7/0417 ,  H04B7/06 ,  H04W74/08 ,  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：US12193116B2

公开(公告)日：2025-01-07

申请号：US18384678

申请日：2023-10-27

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

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

IPC: H04W80/02 ,  H04L5/00 ,  H04W28/02 ,  H04W40/24 ,  H04W72/0446 ,  H04W74/00 ,  H04W74/08 ,  H04W74/0808 ,  H04W84/12

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.

公开(公告)号：US12193071B2

公开(公告)日：2025-01-07

申请号：US18368779

申请日：2023-09-15

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

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

IPC: H04W74/0833 ,  H04L1/16 ,  H04W72/21 ,  H04W74/00 ,  H04W74/04 ,  H04W84/12

Abstract: The present invention relates to a wireless communication method for simultaneous data transmission and a wireless communication terminal using the same, and more particularly, a wireless communication method in which a plurality of terminals simultaneously transmit data for improving a data throughput in a high density environment, and a wireless communication terminal using the same. To this end, the present invention provides a wireless communication method for a terminal including transmitting a trigger frame indicating simultaneous uplink data transmission of multi-users, receiving uplink data transmitted by a plurality of terminals in response to the trigger frame, and transmitting a block acknowledgement for the plurality of terminals having transmitted the uplink data, and a wireless communication terminal using the same.

公开(公告)号：US12176975B2

公开(公告)日：2024-12-24

申请号：US18207141

申请日：2023-06-08

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

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

IPC: H04L5/12 ,  H04B7/02 ,  H04B7/0452 ,  H04L5/00 ,  H04L27/26

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.

公开(公告)号：US12126448B2

公开(公告)日：2024-10-22

申请号：US18244200

申请日：2023-09-08

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

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

IPC: H04L1/1607 ,  H04L1/00 ,  H04L1/1829 ,  H04L5/00 ,  H04L69/22 ,  H04W84/12 ,  H04L1/06 ,  H04L69/324 ,  H04W72/12

CPC classification number: H04L1/1621 ,  H04L1/0031 ,  H04L1/1854 ,  H04L5/0023 ,  H04L5/0053 ,  H04L5/0055 ,  H04L69/22 ,  H04W84/12 ,  H04L1/0003 ,  H04L1/0643 ,  H04L1/1685 ,  H04L69/324 ,  H04W72/12

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 Downlink Multi-User (DL MU) PPDU including information for an Uplink Multi-User (UL MU) transmission from a base wireless communication terminal by using the transceiver, and transmit the UL MU PPDU to the base wireless communication terminal based on the information for UL MU transmission.

公开(公告)号：US12108376B2

公开(公告)日：2024-10-01

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

CPC classification number: H04W72/0453 ,  H04W48/18 ,  H04W74/002 ,  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：US12096471B2

公开(公告)日：2024-09-17

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.

公开(公告)号：US12004262B2

公开(公告)日：2024-06-04

申请号：US17670419

申请日：2022-02-11

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

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

IPC: H04W80/08 ,  H04W72/0446 ,  H04W72/1268 ,  H04W74/08 ,  H04W76/11

CPC classification number: H04W80/08 ,  H04W72/0446 ,  H04W72/1268 ,  H04W74/0866 ,  H04W76/11

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：US11930398B2

公开(公告)日：2024-03-12

申请号：US17879778

申请日：2022-08-03

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

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

IPC: H04L1/1607 ,  H04L5/00 ,  H04W28/04 ,  H04W28/06 ,  H04W84/12 ,  H04W88/08

CPC classification number: H04W28/06 ,  H04L1/1614 ,  H04L1/1621 ,  H04L5/0037 ,  H04L5/0055 ,  H04L5/0091 ,  H04W28/04 ,  H04W84/12 ,  H04W88/08

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.

公开(公告)号：US11818763B2

公开(公告)日：2023-11-14

申请号：US17412219

申请日：2021-08-25

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

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

IPC: H04W74/08 ,  H04W84/12 ,  H04W52/02 ,  H04W28/02 ,  H04W72/04

CPC classification number: H04W74/0833 ,  H04W28/0278 ,  H04W52/0216 ,  H04W52/0219 ,  H04W52/0229 ,  H04W72/04 ,  H04W84/12 ,  Y02D30/70

Abstract: The present invention relates to a wireless communication terminal and a wireless communication method for efficiently scheduling simultaneous uplink transmissions of a plurality of terminals.
To this end, provided are a wireless communication terminal, the terminal including: a transceiver; and a processor, wherein the processor receives, through the transceiver, a trigger frame transmitted by a base wireless communication terminal, and performs a multi-user uplink transmission based on the received trigger frame, wherein the trigger frame includes a predetermined field indicating whether an additional trigger frame is present or not, and a wireless communication method using the same.