公开(公告)号：US11812471B2

公开(公告)日：2023-11-07

申请号：US17845724

申请日：2022-06-21

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

Inventor： Juhyung Son ,  Jinsam Kwak ,  Geonjung Ko

IPC: H04W4/00 ,  H04W74/08 ,  H04W84/12 ,  H04W72/54 ,  H04L27/00 ,  H04B17/318

CPC classification number: H04W74/0816 ,  H04W72/54 ,  H04W74/0808 ,  H04W84/12 ,  H04B17/318 ,  H04L27/0006

Abstract: A wireless communication terminal and wireless communication method for clear channel assessment, and more particularly, to a wireless communication terminal and a wireless communication method for performing an efficient clear channel assessment for spatial reuse of a communication system are provided. The wireless communication terminal comprises: a transceiver configured to transmit and receive a wireless signal; and a processor configured to control an operation of the terminal. The processor is configured to: perform a backoff procedure of a channel for data transmission, suspend the backoff procedure when a wireless signal having a signal strength higher than a predetermined first clear channel assessment (CCA) threshold is received through the channel, identify whether the received wireless signal is a wireless signal of the same basic service set (BSS) as the terminal, and determine whether to resume the backoff procedure based on a CCA threshold determined according to the identification result.

公开(公告)号：US11804941B2

公开(公告)日：2023-10-31

申请号：US17851035

申请日：2022-06-28

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

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

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

CPC classification number: H04L5/0055 ,  H04L5/0044 ,  H04L5/0058 ,  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：US11792855B2

公开(公告)日：2023-10-17

申请号：US17873148

申请日：2022-07-26

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

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

IPC: H04W74/08 ,  H04W84/12

CPC classification number: H04W74/0816 ,  H04W74/08 ,  H04W74/0833 ,  H04W84/12 ,  H04W74/0808

Abstract: Provided are a wireless communication terminal including: a processor; and a communication unit, wherein the processor obtains a backoff counter for an OFDMA-based random access of the terminal, wherein the backoff counter is obtained within a range of a contention window for the uplink OFDMA-based random access, receives a trigger frame indicating an uplink multi-user transmission, when one or more resource unit(s) in which random access can be performed is indicated by the trigger frame, decrements the backoff counter based on a number of resource units(s) in which random access can be performed, and when the backoff counter is 0 or decremented to 0, performs an uplink multi-user transmission through a selected resource unit among the resource units(s) and a wireless communication method using the same.

公开(公告)号：US11770770B2

公开(公告)日：2023-09-26

申请号：US17535643

申请日：2021-11-25

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

Inventor： Woojin Ahn ,  Juhyung Son ,  Jinsam Kwak

IPC: H04W52/02 ,  H04W12/06 ,  H04W74/08 ,  H04W80/02 ,  H04W84/12

CPC classification number: H04W52/0229 ,  H04W12/06 ,  H04W52/0235 ,  H04W74/0808 ,  H04W80/02 ,  H04W84/12

Abstract: Disclosed is a wireless communication terminal to communicate wirelessly. The wireless communication terminal includes: a first wireless transceiver configured to transmit and receive signals modulated by a first modulation method; a second wireless receiver configured to receive a signal modulated by a second modulation method different from the first modulation method; and a processor. The processor is configured to sequentially receive a plurality of fields of a wake-up radio (WUR) frame included in a WUR physical layer processing data unit (PPDU) transmitted by the second modulation method, and when a predetermined condition for the plurality of fields is satisfied, stop receiving the WUR frame without determining whether values of the plurality of fields are valid.

公开(公告)号：US11737078B2

公开(公告)日：2023-08-22

申请号：US17722370

申请日：2022-04-17

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

Inventor： Kyungjun Choi ,  Minseok Noh ,  Jinsam Kwak

IPC: H04W4/00 ,  H04W72/12 ,  H04W72/04

CPC classification number: H04W72/12 ,  H04W72/04

Abstract: Disclosed are a UE of a wireless communication system and a wireless communication method using the same. More particularly, the method including receiving scheduling information including resource allocation information, wherein the resource allocation information comprises a RIV determined based on the number of RBs of a first BWP, and transmitting or receiving data on a RB set corresponding to the RIV in a second BWP, wherein the number of RBs of the second BWP is greater than the number of RBs of the first BWP, the starting RB index S and the number of RBs of the RB set corresponding to the RIV in the second BWP are given in powers of 2 and a device for the same are disclosed.

公开(公告)号：US11736328B2

公开(公告)日：2023-08-22

申请号：US17232147

申请日：2021-04-16

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

Inventor： Juhyung Son ,  Jinsam Kwak ,  Geonjung Ko

IPC: H04L27/26 ,  H04L1/00 ,  H04L5/00 ,  H04W72/23 ,  H04W72/0453 ,  H04W84/12

CPC classification number: H04L27/2613 ,  H04L1/0031 ,  H04L1/0063 ,  H04L1/0079 ,  H04L5/0023 ,  H04L5/0092 ,  H04W72/0453 ,  H04W72/23 ,  H04L27/26132 ,  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：US11722277B2

公开(公告)日：2023-08-08

申请号：US17670348

申请日：2022-02-11

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

Inventor： Juhyung Son ,  Jinsam Kwak ,  Geonjung Ko

IPC: H04L5/00 ,  H04W72/04 ,  H04L27/26 ,  H04W72/0446 ,  H04W72/0453

CPC classification number: H04L5/0048 ,  H04L5/00 ,  H04L5/0053 ,  H04L27/26 ,  H04L27/2613 ,  H04W72/0446 ,  H04W72/0453 ,  H04L27/26132

Abstract: A wireless communication terminal is disclosed. The wireless communication terminal includes a transceiver configured to transmit/receive a wireless signal; and a processor configured to control an operation of the wireless communication terminal. The transceiver transmits a training signal to a base wireless communication terminal based on a sub-frequency band allocated from the base wireless communication terminal, and transmits data to the base wireless communication terminal through the sub-frequency band allocated from the base wireless communication terminal. The training signal is used, by the base wireless communication terminal, for receiving the data from the wireless communication terminal.

公开(公告)号：US11711182B2

公开(公告)日：2023-07-25

申请号：US17681703

申请日：2022-02-25

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

Inventor： Minseok Noh ,  Jinsam Kwak ,  Juhyung Son

IPC: H04L5/00 ,  H04L27/26 ,  H04L5/14 ,  H04W84/12 ,  H04W16/14 ,  H04W72/0446 ,  H04W72/1268 ,  H04W74/08 ,  H04W88/06

CPC classification number: H04L5/0032 ,  H04L5/00 ,  H04L5/14 ,  H04L27/26 ,  H04W16/14 ,  H04W72/0446 ,  H04W72/1268 ,  H04W74/0808 ,  H04W84/12 ,  H04W88/06 ,  H04L27/2602 ,  H04W74/0816

Abstract: Disclosed are a method, an apparatus, and a system for performing channel access. In detail, provided are a method including: receiving uplink scheduling information; and when the user equipment has stopped an uplink transmission during the uplink transmission being performed according to the uplink scheduling information, to resume the uplink transmission, performing a second type channel access when a channel sensed by the user equipment is continuously idle after the uplink transmission has been stopped, and performing a first type channel access when the channel sensed by the user equipment is not continuously idle after the uplink transmission has been stopped, wherein the first type channel access comprises performing a random backoff after a channel sensing, and the second type channel access only comprises performing a channel sensing and an apparatus and a system therefor.

公开(公告)号：US11706440B2

公开(公告)日：2023-07-18

申请号：US17460117

申请日：2021-08-27

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

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

IPC: H04N19/105 ,  H04N19/53 ,  H04N19/57 ,  H04N19/513

CPC classification number: H04N19/513 ,  H04N19/53 ,  H04N19/57

Abstract: A video signal decoding device comprising a processor, wherein the processor is configured to: obtain reference samples corresponding to a first side of a current block and reference samples corresponding to a second side of the current block, obtain a direct current (DC) value for prediction of the current block based on a reference sample set comprising at least some of the reference samples corresponding to the first side and the reference samples corresponding to the second side, and reconstruct the current block based on the DC value.

公开(公告)号：US11689329B2

公开(公告)日：2023-06-27

申请号：US17670348

申请日：2022-02-11

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

Inventor： Juhyung Son ,  Jinsam Kwak ,  Geonjung Ko

IPC: H04L5/00 ,  H04W72/04 ,  H04L27/26 ,  H04W72/0446 ,  H04W72/0453

CPC classification number: H04L5/0048 ,  H04L5/00 ,  H04L5/0053 ,  H04L27/26 ,  H04L27/2613 ,  H04W72/0446 ,  H04W72/0453 ,  H04L27/26132

Abstract: A wireless communication terminal is disclosed. The wireless communication terminal includes a transceiver configured to transmit/receive a wireless signal; and a processor configured to control an operation of the wireless communication terminal. The transceiver transmits a training signal to a base wireless communication terminal based on a sub-frequency band allocated from the base wireless communication terminal, and transmits data to the base wireless communication terminal through the sub-frequency band allocated from the base wireless communication terminal. The training signal is used, by the base wireless communication terminal, for receiving the data from the wireless communication terminal.