公开(公告)号：US11641685B2

公开(公告)日：2023-05-02

申请号：US17162290

申请日：2021-01-29

Applicant: LG ELECTRONICS INC.

Inventor： Namyeong Kim ,  Jeongki Kim ,  Jinsoo Choi ,  Suhwook Kim ,  Sungjin Park ,  Taewon Song ,  Insun Jang ,  Sunhee Baek

IPC: H04W76/15 ,  H04W84/12

Abstract: According to various embodiments, a multi-link device (MLD) operating in a first link and a second link may transmit information on data buffered in the MLD through a first station (STA) operating in an awake state. The information on the data buffered in the MLD may include a first information field related to the first STA and a second information field related to a second STA.

公开(公告)号：US11563523B2

公开(公告)日：2023-01-24

申请号：US17196615

申请日：2021-03-09

Applicant: LG ELECTRONICS INC.

Inventor： Sunwoong Yun ,  Jinmin Kim ,  Sungjin Park ,  Jinsoo Choi

IPC: H04L1/06 ,  H04L27/20 ,  H04L5/00 ,  H04W88/08 ,  H04L27/26 ,  H04L1/00 ,  H04W84/12

Abstract: A method of transmitting and receiving signals in a wireless local area network (WLAN) system and a device for the same are provided. More particularly, there are provided a method and a device for the same in which a station operating in an orthogonal frequency division multiplexing (OFDM) mode transmits and receives signals through two aggregated channels.

公开(公告)号：US20220140987A1

公开(公告)日：2022-05-05

申请号：US17435508

申请日：2020-02-27

Applicant: LG ELECTRONICS INC.

Inventor： Sungjin Park ,  Jeongki Kim ,  Jinsoo Choi ,  Suhwook Kim ,  Taewon Song ,  Insun Jang ,  Eunsung Park

IPC: H04L5/00 ,  H04L25/02 ,  H04W72/04

Abstract: In a wireless local area network system, a sharing access point (AP) may determine a long training field (LTF) subcarrier pattern for each of multiple streams, wherein an LTF symbol is used for at least one stream among a first to a third stream, the number of the LTF symbols is determined on the basis of the number of antennas of a shared AP having the maximum number of antennas among multiple shared APs associated with the sharing AP, and the first to the third stream are assigned different subcarrier patterns. The sharing AP may transmit information associated with the LTF subcarrier pattern.

公开(公告)号：US11197321B2

公开(公告)日：2021-12-07

申请号：US16742615

申请日：2020-01-14

Applicant: LG ELECTRONICS INC.

Inventor： Sungjin Park ,  Jinmin Kim ,  Hangyu Cho ,  Kyungtae Jo

IPC: H04L12/28 ,  H04W74/08 ,  H04W84/12 ,  H04W72/12 ,  H04W74/00 ,  H04W72/04 ,  H04J1/16

Abstract: The present specification relates to a method for transmitting or receiving data by a station in a wireless LAN (WLAN) system and, more particularly, presents a method and device for transmitting or receiving data on the basis of a beamforming training method for a plurality of channels, when a station transmits the data by using the plurality of channels.

公开(公告)号：US11171692B2

公开(公告)日：2021-11-09

申请号：US16464252

申请日：2019-02-11

Applicant: LG ELECTRONICS INC.

Inventor： Sunwoong Yun ,  Jinmin Kim ,  Sungjin Park ,  Jinsoo Choi

IPC: H04B7/0417 ,  H04B7/06 ,  H04L25/02 ,  H04W72/04 ,  H04B7/0456 ,  H04L5/00 ,  H04W84/12

Abstract: Provided are a method and apparatus for transmitting a feedback frame by performing multi input multi output (MIMO) beamforming procedure in a wireless local area network (WLAN) system. Specifically, a first station (STA) generates the feedback frame based on the MIMO beamforming procedure. The first STA transmits the feedback frame to a second STA. The feedback frame includes a feedback subcarrier for a predetermined frequency band. A first subcarrier transmitted first in the feedback subcarrier and a second subcarrier having subcarrier indices −2 and 2 are statically transmitted. The first subcarrier is configured as a left edge subcarrier or right edge subcarrier of the predetermined frequency band. A subcarrier index of a third subcarrier included in the feedback subcarrier is determined based on a grouping value which is a subcarrier interval. The third subcarrier is a subcarrier excluding the first subcarrier and the second subcarrier from the feedback subcarrier. The grouping value is dynamically changed based on channel state information.

公开(公告)号：US11151935B2

公开(公告)日：2021-10-19

申请号：US17007519

申请日：2020-08-31

Applicant: LG ELECTRONICS INC.

Inventor： Sungjin Park

IPC: G09G3/3225 ,  G09G3/3233 ,  G09G3/3208

Abstract: An image display apparatus is disclosed. The image display apparatus includes a display including an organic light emitting diode panel and a controller configured to control the display, wherein the controller is configured to display a first input image, in the case in which a second image having higher luminance than the first image is input after the first image, increase the luminance of the second image during a first period, and decrease the luminance of the second image after the first period. Consequently, it is possible to prevent glare while preventing luminance decrease at the time of scene change of an input image.

公开(公告)号：US11122621B2

公开(公告)日：2021-09-14

申请号：US16629025

申请日：2018-07-06

Applicant: LG ELECTRONICS INC.

Inventor： Sungjin Park ,  Jinmin Kim ,  Sunwoong Yun ,  Jinsoo Choi

IPC: H04W74/08 ,  H04W40/24 ,  H04W72/04 ,  H04W84/12

Abstract: The present specification presents a method for transmitting and receiving data of a station over a secondary channel in a wireless LAN (WLAN) system and an apparatus therefor. Particularly, the present invention may comprise the steps of: receiving, from an access point (AP), allocation information on the secondary channel of the wireless LAN system and information on the secondary channel; performing a channel sensing (CS) mechanism by using an interframe space (IFS) determined on the basis of the information on the secondary channel during an allocation interval in the secondary channel, wherein the allocation interval is indicated by the allocation information; and transmitting, to a second STA, data during the allocation interval from the point in time at which it is determined, according to the performed CS mechanism, that the secondary channel is in an idle state.

公开(公告)号：US11082113B2

公开(公告)日：2021-08-03

申请号：US16611194

申请日：2018-05-03

Applicant: LG ELECTRONICS INC.

Inventor： Sungjin Park ,  Jinmin Kim ,  Sunwoong Yun ,  Jinsoo Choi

IPC: H04B7/06 ,  H04B7/0417 ,  H04B7/26 ,  H04W84/12

Abstract: Presented in the present specification are a method whereby a station performs beamforming training in a wireless LAN (WLAN) system, and a device for same. In particular, presented in the present specification are a method whereby a station performs beamforming training for frequency division multiple access (FDMA) transmission, and a device for same. The method according to the present specification comprises the steps of: transmitting a beamforming setup frame including beamforming training operation information and identification information on one or more second stations corresponding to one FDMA group; performing FDMA beamforming training by using multiple transmission sectors simultaneously on the basis of the beamforming training operation information; receiving a feedback result of the performed FDMA beamforming training from the one or more second stations; and transmitting a selection frame including channel allocation information for each station and FDMA transmission configuration information determined on the basis of the received feedback result.

公开(公告)号：US11057255B2

公开(公告)日：2021-07-06

申请号：US16844685

申请日：2020-04-09

Applicant: LG ELECTRONICS INC.

Inventor： Sunwoong Yun ,  Jinmin Kim ,  Sungjin Park ,  Jinsoo Choi

IPC: H04L27/26 ,  H04L5/00 ,  H04W84/12

Abstract: The present specification relates to a method for transmitting and receiving signals in a wireless local area network (WLAN) system and an apparatus therefor, the method comprising the steps of: generating a training sub-field consisting of a certain number of orthogonal frequency division multiplexing (OFDM) symbols; and transmitting, to a second STA, a signal including a header field and the training sub-field, wherein the transmitted signal is repeatedly transmitted T times (where T is a natural number) on the basis of information indicated by the header field after a data field.

公开(公告)号：US11018841B2

公开(公告)日：2021-05-25

申请号：US16940158

申请日：2020-07-27

Applicant: LG ELECTRONICS INC.

Inventor： Sungjin Park ,  Jinmin Kim ,  Sunwoong Yun ,  Jinsoo Choi

IPC: H04L5/14 ,  H04W84/12 ,  H04L1/18 ,  H04W72/12 ,  H04W72/04

Abstract: The present specification discloses a method for transmitting and receiving acknowledgement (ACK) information in a wireless local area network (WLAN) system and a device for the same. More specifically, the present specification describes a method in which a station device scheduled according to a time division duplex (TDD) scheduling scheme transmits and receives ACK information based on TDD scheduling information and a device for the same.