公开(公告)号：US20200267653A1

公开(公告)日：2020-08-20

申请号：US16868525

申请日：2020-05-06

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

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

IPC: H04W52/02 ,  H04L1/00 ,  H04W74/00 ,  H04L5/00 ,  H04L29/08 ,  H04L27/26 ,  H04W72/04 ,  H04W84/12 ,  H04W74/08

Abstract: The present invention relates to a wireless communication method and a wireless communication terminal using a non-contiguous channel. To this end, provided are a wireless communication terminal including a processor and a transceiver, wherein the processor receives a wireless packet through the communication unit, obtains total bandwidth information indicated via a bandwidth field of HE-SIG-A of the received packet, obtains information of an unassigned resource unit via at least one of the bandwidth field of the HE-SIG-A and a subfield of HE-SIG-B of the received packet, and decodes the received packet based on the total bandwidth information and the information of the unassigned resource unit and a wireless communication method using the same.

公开(公告)号：US20200235883A1

公开(公告)日：2020-07-23

申请号：US16844817

申请日：2020-04-09

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

Inventor： Juhyung SON ,  Jinsam KWAK ,  Geonjung KO

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

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：US20200187090A1

公开(公告)日：2020-06-11

申请号：US16792163

申请日：2020-02-14

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

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

IPC: H04W48/08 ,  H04W88/08 ,  H04W48/16 ,  H04L12/46 ,  H04W74/00

Abstract: Provided is a wireless communication terminal that communicates wirelessly. The terminal includes: a transceiver; and a processor. The processor is configured to receive a frame through the transceiver, determine whether the frame is classified into an Intra-Basic Service Set (BSS) frame or an Inter-BSS frame according to a BSS from which the frame is transmitted, and access a channel according to whether the frame is an Intra-BSS frame or an Inter-BSS frame.

公开(公告)号：US20200163098A1

公开(公告)日：2020-05-21

申请号：US16752616

申请日：2020-01-25

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

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

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

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：US20200015166A1

公开(公告)日：2020-01-09

申请号：US16512324

申请日：2019-07-15

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

Inventor： Woojin AHN ,  Juhyung SON ,  Jinsam KWAK

IPC: H04W52/02 ,  H04L27/00

Abstract: A wireless communication terminal communicating wirelessly is provided. The wireless communication terminal includes: a first wireless transceiver for transmitting and receiving a signal transmitted through a first modulation method; a second wireless receiver for receiving a signal transmitted through a second modulation method different from the first modulation method; and a processor. The processor receives a wake-up packet from a base wireless communication terminal through the second wireless receiver, and wakes-up the first wireless transceiver based on the wake-up packet, and maintains the second wireless receiver in a state capable of receiving at least from a time point at which the wake-up packet is received until a time point an exchange of frames with the base wireless communication terminal for the first time through the first wireless transceiver.

公开(公告)号：US20190319738A1

公开(公告)日：2019-10-17

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: H04L1/00 ,  H04W72/04 ,  H04L1/16 ,  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：US20190246412A1

公开(公告)日：2019-08-08

申请号：US16255187

申请日：2019-01-23

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

Inventor： Minseok NOH ,  Jinsam KWAK ,  Juhyung SON

IPC: H04W72/12 ,  H04W72/04 ,  H04W74/08 ,  H04W16/14 ,  H04W88/06

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：US20190238272A1

公开(公告)日：2019-08-01

申请号：US16377829

申请日：2019-04-08

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

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

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

CPC classification number: H04L1/1664 ,  H04L1/1614 ,  H04L1/1621 ,  H04L1/1671 ,  H04W72/0413 ,  H04W72/121 ,  H04W72/1231 ,  H04W72/1284 ,  H04W74/085

Abstract: The present invention relates to a wireless communication terminal and a wireless communication method for efficiently managing simultaneous data transmissions of a plurality of terminals.To this end, provided are a base wireless communication terminal including: a transceiver configured to transmit and receive a wireless signal; and a processor configured to control an operation of the base wireless communication terminal, wherein the processor is configured to: transmit a trigger frame triggering a multi-user uplink transmission of a plurality of terminals, receive multi-user uplink data through resources allocated to the plurality of terminals, and transmit a block ACK through the resources in response to the received multi-user uplink data, wherein the transmission of the block ACK in each resource is terminated at the same time, and a wireless communication method using the same.

公开(公告)号：US20190132107A1

公开(公告)日：2019-05-02

申请号：US16233078

申请日：2018-12-26

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

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

IPC: H04L5/00

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：US20180332478A1

公开(公告)日：2018-11-15

申请号：US16033153

申请日：2018-07-11

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

Inventor： Minseok NOH ,  Jinsam KWAK ,  Juhyung SON

IPC: H04W16/14 ,  H04W74/08 ,  H04L5/00 ,  H04W72/14 ,  H04L1/18

CPC classification number: H04W16/14 ,  H04L1/18 ,  H04L1/1812 ,  H04L5/00 ,  H04L5/0051 ,  H04L27/227 ,  H04L27/26 ,  H04W72/04 ,  H04W72/14 ,  H04W74/08 ,  H04W74/0808 ,  H04W74/0833

Abstract: A base station and a user equipment of a wireless communication system are disclosed. Each of the base station and the user equipment of the wireless communication includes a communication module; and a processor. The processor is configured to receive signaling information related to the start of uplink (UL) transmission from the base station through the communication module. The processor is configured to determine whether to perform a UL transmission using a partial subframe based on the signaling information. When the processor performs the UL transmission using the partial subframe, the processor is configured to determine a symbol configuration of the partial subframe based on the signaling information and perform, through the communication module, the UL transmission using the partial subframe according to the symbol configuration. At this time, the partial subframe is a subframe which occupies less than 14 symbols.