公开(公告)号：US20230189308A1

公开(公告)日：2023-06-15

申请号：US18105812

申请日：2023-02-04

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

Inventor： Kyungjun CHOI ,  Minseok NOH ,  Geunyoung SEOK ,  Jinsam KWAK ,  Juhyung SON

IPC: H04W72/51 ,  H04W72/1273

CPC classification number: H04W72/51 ,  H04W72/1273

Abstract: The present specification relates to a method, apparatus, and system for initial cell access in a wireless communication system. The present specification discloses reduced capability user equipment (UE) comprising: a communication module configured to receive configuration information for configuring a first downlink bandwidth part (DL BWP) and a first uplink bandwidth part (BWP) to be used for an initial access procedure, receive an indicator indicating BWP access barring of first user equipment in a second UL BWP and a second DL BWP for legacy-type second user equipment, and perform, on the basis of the indicator, the initial access procedure via at least one of the first DL BWP, the first UL BWP, the second DL BWP, and the second UL BWP; and a processor that controls the reception of the configuration information, the performance of the initial access procedure, and the reception of the indicator. The RedCap user equipment may smoothly perform the initial cell access, may perform a random access procedure without a collision with existing legacy-type user equipment, and may perform communication on the basis of various types of frequency hopping designs.

公开(公告)号：US20230179348A1

公开(公告)日：2023-06-08

申请号：US18103457

申请日：2023-01-30

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

Inventor： Geunyoung SEOK ,  Kyungjun CHOI ,  Minseok NOH ,  Juhyung SON ,  Jinsam KWAK

IPC: H04L5/00 ,  H04L5/14

CPC classification number: H04L5/0012 ,  H04L5/0051 ,  H04L5/1469

Abstract: A method by which a terminal transmits an uplink channel in a wireless communication system comprises steps of: receiving, from a base station, first information, which is information related to a time division duplex (TDD) configuration; and repeatedly transmitting, to the base station, an uplink channel on a resource determined on the basis of the first information.

公开(公告)号：US20230146753A1

公开(公告)日：2023-05-11

申请号：US18091362

申请日：2022-12-29

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

Inventor： Kyungjun CHOI ,  Minseok NOH ,  Jinsam KWAK

IPC: H04W72/23 ,  H04L27/26 ,  H04W72/1268 ,  H04W72/0446 ,  H04W72/0453

CPC classification number: H04W72/23 ,  H04L27/26025 ,  H04L27/2605 ,  H04W72/1268 ,  H04W72/0446 ,  H04W72/0453

Abstract: Disclosed is a method in which a user equipment receives downlink control information in a wireless communication system. The user equipment may receive configuration information for reception of a physical downlink control channel (PDCCH) from a base station, and may receive a PDCCH including downlink control information (DCI) on the basis of the configuration information.

公开(公告)号：US20230131003A1

公开(公告)日：2023-04-27

申请号：US18088522

申请日：2022-12-24

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

Inventor： Minseok NOH ,  Kyungjun CHOI ,  Geunyoung SEOK ,  Jinsam KWAK

IPC: H04W74/08

Abstract: The present invention relates to a method for transmitting an uplink channel in a wireless communication system. The method performed by a terminal comprises the steps of: receiving resource information related to transmission of an uplink channel from a base station; detecting a downlink channel transmitted from the base station; and transmitting the uplink channel to the base station on the basis of the resource information according to the result of detecting the downlink channel, wherein the uplink channel is transmitted within a channel-occupancy time (COT) initiated by the base station or transmitted within a a COT initiated by the terminal.

公开(公告)号：US20230042279A1

公开(公告)日：2023-02-09

申请号：US17970768

申请日：2022-10-21

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

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

IPC: H04W74/08 ,  H04W84/12 ,  H04W40/00 ,  H04W72/04 ,  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：US20220368462A1

公开(公告)日：2022-11-17

申请号：US17867043

申请日：2022-07-18

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

Inventor： Kyungjun CHOI ,  Minseok NOH ,  Jinsam KWAK

IPC: H04L1/16 ,  H04L1/18 ,  H04W28/04 ,  H04W72/12

Abstract: Disclosed are a user equipment of a wireless communication system and a wireless communication method using the same. More specifically, disclosed are a user equipment including a processor configured to receive DCI through a PDCCH indicating PDSCH scheduling information of each cell in one or more cell(s), identify a transmission scheme in each cell based on a DCI format of the DCL receive a PDSCH of each cell in the one or more cell(s) based on the scheduling information of the PDCCH, generate a hybrid automatic repeat request acknowledgment (HARQ-ACK) bit sequence for the one or more cell(s) based on the identified transmission scheme of each cell in response to receiving the PDSCH of each cell, and transmit the generated HARQ-ACK bit sequence and a wireless communication method using the same.

公开(公告)号：US20220312469A1

公开(公告)日：2022-09-29

申请号：US17715037

申请日：2022-04-07

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

Inventor： Kyungjun CHOI ,  Minseok NOH ,  Jinsam KWAK

IPC: H04W72/12 ,  H04W72/04 ,  H04L27/26

Abstract: Disclosed is a method in which a user equipment receives downlink control information in a wireless communication system. The user equipment may receive configuration information for reception of a physical downlink control channel (PDCCH) from a base station, and may receive a PDCCH including downlink control information (DCI) on the basis of the configuration information.

公开(公告)号：US20220295448A1

公开(公告)日：2022-09-15

申请号：US17752863

申请日：2022-05-25

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

Inventor： Woojin AHN ,  Yongho KIM ,  Jinsam KWAK ,  Juhyung SON

IPC: H04W72/00 ,  H04W74/08 ,  H04L47/2416 ,  H04L47/2425 ,  H04W72/02 ,  H04W72/04 ,  H04W72/12

Abstract: The present invention relates to a wireless communication method for simultaneous transmit and receive of data and a wireless communication terminal using the same, and more particularly, to a wireless communication method and an apparatus thereof which can efficiently perform simultaneous data transmission and reception even in an overlapped BSS environment.
To this end, provided are a wireless communication method of a terminal, including: performing a backoff procedure for transmitting data; transmitting a first RTS frame when a backoff counter of the backoff procedure is expired; setting a transmission timer for waiting for transmitting the data when a second RTS frame is received in response to the transmitted first RTS frame; and waiting for transmitting the data based on the set transmission timer and a wireless communication terminal using the same.

公开(公告)号：US20220279528A1

公开(公告)日：2022-09-01

申请号：US17744600

申请日：2022-05-13

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

Inventor： Woojin AHN ,  Yongho KIM ,  Jinsam KWAK ,  Juhyung SON

IPC: H04W72/12 ,  H04W84/12 ,  H04W74/08

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 is configured to: generate an uplink packet, wherein a predetermined field of a MAC header of the uplink packet indicates information on uplink data of the terminal, and transmit the generated uplink packet to a base wireless communication terminal, and a wireless communication method using the same.

公开(公告)号：US20220225350A1

公开(公告)日：2022-07-14

申请号：US17712071

申请日：2022-04-02

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

Inventor： Minseok NOH ,  Jinsam KWAK ,  Juhyung SON

IPC: H04W72/12 ,  H04W72/14 ,  H04L5/00 ,  H04L27/26 ,  H04W16/14 ,  H04W72/04 ,  H04W74/08

Abstract: A method for performing an uplink transmission to a base station by a user equipment through an unlicensed cell in a wireless communication system is provided. The method includes: receiving an uplink grant that schedules the uplink transmission in at least one subframe from the base station; and performing the uplink transmission in the at least one subframe using at least one of a first type channel access or a second type channel access. The uplink transmission is performed using the second type channel access when all of the at least one subframe is included in a predetermined interval determined based on a downlink transmission through the unlicensed cell from the base station.