公开(公告)号：US20180026768A1

公开(公告)日：2018-01-25

申请号：US15721725

申请日：2017-09-29

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

Inventor： Jinsam KWAK ,  Juhyung SON ,  Geonjung KO

IPC: H04L5/00 ,  H04L27/26 ,  H04L27/18

CPC classification number: H04L5/0048 ,  H04L5/0007 ,  H04L5/0044 ,  H04L27/18 ,  H04L27/2613

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.

公开(公告)号：US20170264475A1

公开(公告)日：2017-09-14

申请号：US15519294

申请日：2015-10-14

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

Inventor： Juhyung SON ,  Jinsam KWAK ,  Geonjung KO

IPC: H04L27/26 ,  H04L1/00 ,  H04W72/04

CPC classification number: H04L27/2613 ,  H04L1/0031 ,  H04L1/0063 ,  H04L1/0079 ,  H04L5/0023 ,  H04L5/0092 ,  H04W72/042 ,  H04W72/0453 ,  H04W84/12

Abstract: A wireless communication terminal is disclosed. The wireless communication terminal includes a transceiver transmitting/receiving a wireless signal, and a processor controlling an operation of the wireless communication terminal. The transceiver obtains a signaling field from a physical frame including data to be transmitted from a base wireless communication terminal to each of a plurality of wireless communication terminals including the wireless communication terminal, and receives, from the physical frame based on the signaling field, the data having been transmitted from the base wireless communication terminal to the wireless communication terminal. The signaling field signals information about the plurality of wireless communication terminals. The base wireless communication terminal is any one wireless communication terminal different from the plurality of wireless communication terminals.

公开(公告)号：US20170164406A1

公开(公告)日：2017-06-08

申请号：US15435261

申请日：2017-02-16

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

Inventor： Juhyung SON ,  Jinsam KWAK ,  Geonjung KO

IPC: H04W74/08 ,  H04W72/08 ,  H04B17/318

CPC classification number: H04W74/0816 ,  H04B17/318 ,  H04W72/082 ,  H04W74/08 ,  H04W84/12

Abstract: The present invention relates to a wireless communication method for simultaneous data communication and a wireless communication terminal using the same, and more particularly, to a wireless communication method for suppressing interference between terminals and ensuring fairness when performing data simultaneous communication for spatial reuse of communication system and wireless communication terminal using the same.For this, provided are a wireless communication method and a wireless communication terminal using the same. The method includes: receiving a wireless signal of a specific channel; extracting basic service set (BSS) identifier information of the received wireless signal; extracting length information from the wireless signal wherein the length information represents information relating to a transmission completion time point of the wireless signal; and adjusting a data transmission period of the terminal based on the extracted length information, when the BSS identifier information of the wireless signal is different from BSS identifier information of the terminal.

公开(公告)号：US20250168902A1

公开(公告)日：2025-05-22

申请号：US19031761

申请日：2025-01-18

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

Inventor： Woojin AHN ,  Juhyung SON ,  Geonjung KO ,  Jinsam KWAK

IPC: H04W74/08 ,  H04B7/0417 ,  H04B7/06 ,  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：US20250168879A1

公开(公告)日：2025-05-22

申请号：US19031065

申请日：2025-01-17

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：US20250142638A1

公开(公告)日：2025-05-01

申请号：US19001317

申请日：2024-12-24

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

Inventor： Geonjung KO ,  Juhyung SON ,  Sanghyun KIM ,  Jinsam KWAK

IPC: H04W74/0833 ,  H04W48/16 ,  H04W74/04

Abstract: A non-access point (AP) multi-link device (MLD) of the present invention, comprising a plurality of stations operating on a plurality of links in a wireless communication system, may receive a frame from an AP MLD comprising a plurality of APs, operating on a plurality of links, and may process each of one or more TBTT information fields on the basis of a TBTT information type subfield and a TBTT information length field included in the frame.

公开(公告)号：US20250088305A1

公开(公告)日：2025-03-13

申请号：US18957901

申请日：2024-11-25

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

Inventor： Woojin AHN ,  Juhyung SON ,  Geonjung KO ,  Jinsam KWAK

IPC: H04L1/00 ,  H04L1/1607 ,  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：US20250080305A1

公开(公告)日：2025-03-06

申请号：US18954541

申请日：2024-11-21

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

Inventor： Juhyung SON ,  Jinsam KWAK ,  Geonjung KO

IPC: H04L5/00 ,  H04L1/1607 ,  H04L65/40 ,  H04L69/22 ,  H04W72/04 ,  H04W74/0833

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 receive trigger information and data from the base wireless communication terminal by using the transceiver, and transmits ACK information indicating whether the data is received to the base wireless communication terminal based on the trigger information. The trigger information is information for triggering transmission of the wireless communication terminal.

公开(公告)号：US20250016833A1

公开(公告)日：2025-01-09

申请号：US18890765

申请日：2024-09-20

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

Inventor： Geonjung KO ,  Juhyung SON ,  Sanghyun KIM ,  Jinsam KWAK

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

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：US20240422658A1

公开(公告)日：2024-12-19

申请号：US18820197

申请日：2024-08-29

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

Inventor： Sanghyun KIM ,  Geonjung KO ,  Juhyung SON ,  Jinsam KWAK

IPC: H04W48/16 ,  H04W88/10

Abstract: Disclosed are a method and device for channel switching performed by a multi-link device (MLD) including a plurality of stations each operating on a plurality of links in a wireless communication system. Specifically, the MLD of the present invention can receive a frame for channel switching from a first access point (AP) of an AP MLD including at least one AP and recognize channel switching of another AP on the basis of the received frame.