公开(公告)号：US10931396B2

公开(公告)日：2021-02-23

申请号：US16449132

申请日：2019-06-21

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

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

IPC: H04L12/28 ,  H04L1/00 ,  H04L1/16 ,  H04W72/04 ,  H04W72/12 ,  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：US20210022039A1

公开(公告)日：2021-01-21

申请号：US17062537

申请日：2020-10-02

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

Inventor： Juhyung SON ,  Jinsam Kwak ,  Geonjung Ko

IPC: H04W28/06 ,  H04W84/12 ,  H04L1/00 ,  H04L1/18 ,  H04L1/16

Abstract: The present invention relates to a method for constructing an aggregated frame for efficient wireless communication in a high-density environment and a wireless communication method using the same.
For this, the present invention provides a wireless communication method including: generating an aggregated MPDU (A-MPDU) including a plurality of MAC protocol data unit (MPDU) groups to which independent modulation and coding schemes (MCSs) are applied, respectively; and transmitting the generated A-MPDU through the transceiver and a wireless communication terminal using the same.

公开(公告)号：US10785795B2

公开(公告)日：2020-09-22

申请号：US15953404

申请日：2018-04-14

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

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 ,  H04L29/06 ,  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：US20200052860A1

公开(公告)日：2020-02-13

申请号：US16596674

申请日：2019-10-08

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

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

IPC: H04L5/00 ,  H04W74/00 ,  H04W74/08 ,  H04W84/12

Abstract: Provided is a wireless communication terminal that communicates wirelessly. The wireless communication terminal includes: a transceiver; and a processor. The processor receiving trigger information from a base wireless communication terminal using the transceiver, and transmits an Aggregate-MAC Protocol Data Unit (A-MPDU) to the base wireless communication terminal based on the trigger information.

公开(公告)号：US10554370B2

公开(公告)日：2020-02-04

申请号：US15898226

申请日：2018-02-15

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

Inventor： Juhyung Son ,  Jinsam Kwak ,  Geonjung Ko

IPC: H04W4/00 ,  H04L5/00 ,  H04L29/06 ,  H04W72/04 ,  H04W74/08

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：US10536979B2

公开(公告)日：2020-01-14

申请号：US16452448

申请日：2019-06-25

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

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

IPC: H04W74/08 ,  H04W72/04 ,  H04L27/26 ,  H04L5/00

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：US10433181B2

公开(公告)日：2019-10-01

申请号：US16041721

申请日：2018-07-20

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

Inventor： Jinsam Kwak ,  Juhyung Son ,  Geonjung Ko ,  Minseok Noh

IPC: H04W16/14 ,  H04W74/08 ,  H04L5/00 ,  H04L27/26 ,  H04W84/04

Abstract: Disclosed relates to a method, device, and system for performing downlink transmission. Specifically, the disclosed relates to a method including when the downlink signal includes a physical downlink shared channel (PDSCH) and a channel in the specific cell is sensed to be idle for a first predefined interval, wherein the processor performs backoff after the second predefined time in order to perform the downlink transmission, and when the downlink transmission includes a Discovery Reference Signal (DRS) and the channel in the specific cell is sensed to be idle for a second predefined interval, performing the downlink transmission immediately after the second predefined interval, and a device and system therefor.

公开(公告)号：US09872315B2

公开(公告)日：2018-01-16

申请号：US15470906

申请日：2017-03-28

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

Inventor： Juhyung Son ,  Jinsam Kwak ,  Geonjung Ko ,  Hyun oh Oh

IPC: H04W4/00 ,  H04W74/08 ,  H04B17/318 ,  H04W76/02

CPC classification number: H04W74/0816 ,  H04B17/318 ,  H04W76/11 ,  H04W84/12

Abstract: The present invention relates to a wireless communication method for clear channel assessment and a wireless communication terminal using the same, and more particularly, to a wireless communication method and a wireless communication terminal for performing efficient clear channel assessment based on BBS identifier information of non-legacy wireless LAN information. To this end, provided is a wireless communication method including: receiving a radio signal of a specific channel; measuring a signal strength of the received radio signal; and determining whether the specific channel is busy based on the measured signal strength and BSS identifier information of the radio signal.

公开(公告)号：US12232034B2

公开(公告)日：2025-02-18

申请号：US17702779

申请日：2022-03-23

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

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

IPC: H04W52/02 ,  H04W84/12

Abstract: Provided is a wireless communication terminal that communicates wirelessly. The terminal includes: a wireless LAN (WLAN) transceiver configured to transmit and receive a WLAN signal; and a wake-up radio (WUR) receiver configured to receive a WUR signal. The WUR receiver is configured to receive a wake-up packet from a base wireless communication terminal and wakes-up the WLAN transceiver. A part of the WUR signal is transmitted by a modulation method different from a modulation method of the WLAN signal.

公开(公告)号：US12155467B2

公开(公告)日：2024-11-26

申请号：US18219641

申请日：2023-07-07

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

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

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

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.