公开(公告)号：US10694412B2

公开(公告)日：2020-06-23

申请号：US16332339

申请日：2018-11-26

Applicant: LG ELECTRONICS INC.

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

IPC: H04W24/08 ,  H04W84/12

Abstract: The present specification discloses a method for transmitting and receiving channel measurement information in a wireless local area network (WLAN) system and a device for the same. More specifically, the present specification describes a method for transmitting and receiving channel measurement information to support a time division duplex (TDD) scheduling scheme, which is a method for transmitting and receiving channel measurement information based on channel measurement per time unit different from that in a conventional method, and a device for the same.

公开(公告)号：US10680683B2

公开(公告)日：2020-06-09

申请号：US16476518

申请日：2019-04-02

Applicant: LG ELECTRONICS INC.

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

IPC: H04B7/0417 ,  H04B7/06 ,  H04B7/0452 ,  H04W84/12

Abstract: Proposed are a method and apparatus for transmitting a feedback frame in a wireless local area network (WLAN) system. Specifically, a first STA generates the feedback frame based on multi user (MU)-multi input multi output (MIMO) beamforming. The first STA transmits the feedback frame to a second STA. The feedback frame includes information related to a feedback subcarrier for a predetermined frequency band and a beamforming report field for the MU-MIMO beamforming. The feedback subcarrier includes a first subcarrier transmitted first in the feedback subcarrier and a second subcarrier of which a subcarrier index is determined based on a grouping value related to a subcarrier spacing. The beamforming report field includes a first signal to noise ratio (SNR) for the first subcarrier and a first differential SNR for the second subcarrier. The first differential SNR is an SNR difference between adjacent subcarriers included in the feedback subcarrier.

公开(公告)号：US12219036B2

公开(公告)日：2025-02-04

申请号：US18202452

申请日：2023-05-26

Applicant: LG ELECTRONICS INC.

Inventor： Dongguk Lim ,  Eunsung Park ,  Sunwoong Yun ,  Jinsoo Choi

IPC: H04L27/18 ,  H04L69/22 ,  H04W84/12

Abstract: An example according to the present disclosure relates to a technique for identifying a wireless LAN (WLAN) packet. For example, when a physical protocol data unit (PPDU) includes a legacy signal field, a field contiguous to the legacy signal field may be used to identify a type of the PPDU. A field contiguous to the legacy signal field may include information indicating that the PPDU is an extreme high throughput (EHT) PPDU. The field contiguous to the legacy signal field may include at least one of information related to a frame format, a transmission opportunity, an STA ID, and/or a bandwidth.

公开(公告)号：US12095684B2

公开(公告)日：2024-09-17

申请号：US17429292

申请日：2020-02-12

Applicant: LG ELECTRONICS INC.

Inventor： Eunsung Park ,  Jinsoo Choi ,  Dongguk Lim ,  Jinmin Kim ,  Sunwoong Yun

IPC: H04L5/00

CPC classification number: H04L5/0023 ,  H04L5/0048

Abstract: Proposed are a method and an apparatus for receiving an EHT PPDU in a wireless LAN system. Specifically, a reception STA receives an EHT PPDU including an STF signal from a transmission STA through a 320 MHz band or a 160+160 MHz band. The reception STA decodes the EHT PPDU. The STF signal is generated on the basis of an EHT STF sequence for the 320 MHz band or the 160+160 MHz band. The EHT STF sequence for the 320 MHz band is a first sequence in which a preconfigured M sequence is repeated, and is defined as {M −1 −M −1 M −1 M 0 −M 1 −M 1 −M 1 M 0 −M 1 M 1 −M 1 −M 0 M −1 M −1 M −1 −M}*(1+j)/sqrt(2).

公开(公告)号：US12003461B2

公开(公告)日：2024-06-04

申请号：US17610587

申请日：2020-05-19

Applicant: LG Electronics Inc.

Inventor： Eunsung Park ,  Jinsoo Choi ,  Dongguk Lim ,  Jinmin Kim ,  Sunwoong Yun

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

CPC classification number: H04L5/0092 ,  H04W72/0453 ,  H04L5/0048 ,  H04L5/0098 ,  H04L27/2602

Abstract: Proposed are a method and an apparatus for receiving an MU PPDU in a wireless LAN system. Specifically, a receiving STA receives an MU PPDU from a transmitting STA. The receiving STA decodes the MU PPDU. The MU PPDU includes an LSIG field, an RL-SIG field, an HE-SIG field, and an EHT-SIG field. A first reserved bit of the L-SIG field includes information indicating that a first band in which the MU PPDU is transmitted is greater than 160 MHz. A second reserved bit of the HE-SIG field includes information relating to a second band in which the EHT-SIG field is transmitted or the size of the first band. The receiving STA includes an HE STA and an EHT STA.

公开(公告)号：US11903001B2

公开(公告)日：2024-02-13

申请号：US16973427

申请日：2019-06-03

Applicant: LG ELECTRONICS INC.

Inventor： Eunsung Park ,  Sunwoong Yun ,  Dongguk Lim ,  Jinsoo Choi

IPC: H04W72/53 ,  H04L27/26 ,  H04W72/0453 ,  H04W72/23 ,  H04L5/00 ,  H04L27/02 ,  H04W84/12

CPC classification number: H04W72/53 ,  H04L5/0053 ,  H04L5/0094 ,  H04L27/2602 ,  H04L27/2603 ,  H04L27/2607 ,  H04W72/0453 ,  H04W72/23 ,  H04W84/12

Abstract: A method and an apparatus for transmitting and receiving data in a wireless LAN system are proposed. Specifically, an AP transmits control information to at least one STA. The AP transmits data to at least one STA or receives data from at least one STA, on the basis of the control information. The control information includes resource unit information for transmitting and receiving the data in a broadband. If the RU information is tone plan information for the full bandwidth of the broadband, the RU information includes allocation information that the broadband is composed of 12 guard tones, 4068 tones RU, 5 DC tones, and 11 guard tones. If the RU information is tone plan information to which OFDMA is applied for the broadband, the RU information includes allocation information that the broadband is composed of 12 guard tones, 2020 tones RU, 13 tones RU, 7 DC, 13 tones RU, 2020 tones RU, and 11 guard tones.

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：US11476994B2

公开(公告)日：2022-10-18

申请号：US17252667

申请日：2019-06-03

Applicant: LG ELECTRONICS INC.

Inventor： Eunsung Park ,  Sunwoong Yun ,  Dongguk Lim ,  Jinsoo Choi

IPC: H04L5/00 ,  H04W72/04 ,  H04W84/12

Abstract: A method and a device for transmitting a PPDU in a WLAN system are proposed. Specifically, an AP generates a PPDU and transmits the PPDU to a STA. The PPDU includes an extremely high throughput (EHT)-LTF and a data field. The data field includes a pilot tone. The pilot tone is configured based on resource unit (RU) information about a broadband. When the broadband includes four 996-tone RUs based on the RU information, an index for the pilot tone is set to ±{24, 92, 158, 226, 266, 334, 400, 468, 562, 630, 696, 764, 804, 872, 938, 1006, 1048, 1116, 1182, 1250, 1290, 1358, 1424, 1492, 1586, 1654, 1720, 1788, 1828, 1896, 1962, 2030}.

公开(公告)号：US11349966B2

公开(公告)日：2022-05-31

申请号：US17256868

申请日：2019-07-02

Applicant: LG ELECTRONICS INC.

Inventor： Dongguk Lim ,  Eunsung Park ,  Sunwoong Yun ,  Jinsoo Choi

IPC: H04L27/18 ,  H04L29/06 ,  H04L69/22 ,  H04W84/12

Abstract: An example according to the present disclosure relates to a technique for identifying a wireless LAN (WLAN) packet. For example, when a physical protocol data unit (PPDU) includes a legacy signal field, a field contiguous to the legacy signal field may be used to identify a type of the PPDU. A field contiguous to the legacy signal field may include information indicating that the PPDU is an extreme high throughput (EHT) PPDU. The field contiguous to the legacy signal field may include at least one of information related to a frame format, a transmission opportunity, an STA ID, and/or a bandwidth.

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.