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：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：US12192819B2

公开(公告)日：2025-01-07

申请号：US18619944

申请日：2024-03-28

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

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

IPC: H04W28/02 ,  H04L47/2483

Abstract: A non-access point (AP) multi-link device operating in a first link and a second link is disclosed. The non-AP multi-link device comprises a transmission/reception unit and a processor. The processor receives a beacon frame or a probe response frame from an AP multi-link device operating in the first link and the second link, determines a traffic identifier (TID) mapped to the first link and the second link according to TID-to-Link mapping indicated by the beacon frame or the probe response frame, and performs transmission in the first link or the second link according to the TID mapped to the first link and the second link.

公开(公告)号：US11950244B2

公开(公告)日：2024-04-02

申请号：US17112738

申请日：2020-12-04

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

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

IPC: H04W72/04 ,  H04H20/95 ,  H04W72/0453 ,  H04W72/121 ,  H04W72/23

CPC classification number: H04W72/23 ,  H04H20/95 ,  H04W72/0453 ,  H04W72/121

Abstract: Disclosed is a method for receiving data by a terminal in a wireless communication system. The terminal may receive a physical protocol data unit (physical layer protocol data unit: PPDU) from an access point (APAP) and decode the received PPDU. The PPDU may include a universal signal (U-SIG) field and an extremely high throughput (EHT)-SIG field including at least one content channel, and the U-SIG field may include a bandwidth field indicating the total bandwidth via which the PPDU is transmitted. The total bandwidth is divided into at least one segment, and at least one of field among same fields includes same information except for a resource unit allocation (RU allocation) field between a first content channel and a second content channel in the same segment among the at least one segment when the at least one content channel is composed of a first content channel and a second content channel.

公开(公告)号：US12289672B2

公开(公告)日：2025-04-29

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 multilink 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.

公开(公告)号：US12160891B2

公开(公告)日：2024-12-03

申请号：US18512022

申请日：2023-11-17

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

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

IPC: H04W74/0816 ,  H04W72/0457 ,  H04W74/08

Abstract: A non-AP station for communicating with an access point (AP) is disclosed. The non-AP station comprises a transceiving unit and a processor. The processor: receives, from the AP by using the transceiving unit, a first PPDU including a multi user-request to send (MU-RTS) TXOP sharing (TXS) trigger frame; for the MU-RTS TXS trigger frame, allocates, to the non-AP station, a shared TXOP that is a portion of a TXOP acquired by the AP; transmits, to the AP by using the transceiving unit, a second PPDU including a CTS frame in response to the MU-RTS TXS frame; and transmits a third PPDU within the shared TXOP by using the transceiving unit.

公开(公告)号：US12150075B2

公开(公告)日：2024-11-19

申请号：US18389634

申请日：2023-12-19

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

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

IPC: H04W56/00

Abstract: The present invention provides a device and a method for data reception/transmission performed by a multi-link device (MLD) including multiple stations operating in multiple links in a wireless communication system. Specifically, the MLD in the present invention may receive a frame transmitted from a first access point (AP) or a first station (STA) operating in the first link, through a second STA operating in the second link, and reset a medium sync delay timer for application of a medium sync delay of the second STA on the basis of the received frame when the medium sync delay timer is not “0”.