公开(公告)号：US20200154476A1

公开(公告)日：2020-05-14

申请号：US16738874

申请日：2020-01-09

Applicant: LG ELECTRONICS INC.

Inventor： Jinmin KIM ,  Kiseon RYU

IPC: H04W74/08 ,  H04W48/16 ,  H04W74/06

Abstract: In an embodiment of the present invention, a method for indicating, by an access point (AP) associated with a first basic service set (BSS), spatial reuse (SR) in a wireless LAN (WLAN) system includes transmitting a trigger frame which requests uplink multi-user (UL MU) transmission of a plurality of stations (STAs) and receiving an UL MU physical protocol data unit (PPDU) generated based on the trigger frame from the plurality of STAs. The trigger frame may include SR indication information for indicating the SR of an overlapping BSS (OBSS) STA. The first high efficiency (HE)-signal (SIG) A field of the UL MU PPDU may include SR support information generated based on the SR indication information.

公开(公告)号：US20200154286A1

公开(公告)日：2020-05-14

申请号：US16739887

申请日：2020-01-10

Applicant: LG ELECTRONICS INC.

Inventor： Sungjin PARK ,  Jinmin KIM ,  Hangyu CHO ,  Kyungtae JO

IPC: H04W16/28 ,  H04L27/26 ,  H04W84/12 ,  H04W74/00 ,  H04W72/04

Abstract: The present specification discloses a method by which a station transmits/receives a signal in a wireless LAN (WLAN) system, and a device therefor. More particularly, disclosed are: a method for performing beamforming training for a plurality of channels and transmitting/receiving a signal on the basis of the beamforming training, when the station transmits/receives the signal through the plurality of channels; and a device therefor.

公开(公告)号：US20190364560A1

公开(公告)日：2019-11-28

申请号：US16436450

申请日：2019-06-10

Applicant: LG ELECTRONICS INC.

Inventor： Jinyoung CHUN ,  Kiseon RYU ,  Jeongki KIM ,  Jinsoo CHOI ,  Dongguk LIM ,  Hangyu CHO ,  Jinmin KIM ,  Eunsung PARK

IPC: H04W72/04 ,  H04W4/70 ,  H04L1/06 ,  H04L5/00 ,  H04L1/00 ,  H04W84/12 ,  H04W28/10 ,  H04W72/08

Abstract: Disclosed herein is a sounding method of a station (STA) for sending feedback information about a downlink (DL) channel state in a wireless LAN (WLAN) system. The sounding method includes receiving an NDP announcement (NDPA) frame providing notification of the transmission of a null data packet (NDP) frame; receiving the NDP frame; receiving a trigger frame comprising resource allocation information allocated to the STA; generating feedback information using the NDP frame; and sending a feedback frame comprising feedback information through uplink (UL) multi-user (MU) transmission using a frequency resource indicated by the resource allocation information. The feedback information may be generated in a frequency granularity (FG) unit with respect to a transmission bandwidth having a size smaller than or equal to the size of a transmission bandwidth of the NDP frame.

公开(公告)号：US20190341975A1

公开(公告)日：2019-11-07

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 ,  H04B7/0452 ,  H04B7/06

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：US20190260431A1

公开(公告)日：2019-08-22

申请号：US16346094

申请日：2017-10-30

Applicant: LG ELECTRONICS INC.

Inventor： Sungjin PARK ,  Jinmin KIM ,  Hangyu CHO ,  Kyungtae JO

IPC: H04B7/0417 ,  H04L5/00 ,  H04W72/04

Abstract: According to one embodiment of the present specification, provided is a method by which a station (STA) transmits, through a plurality of channels, signals in a wireless LAN (WLAN) system. The method for transmitting signals comprises the steps of: allowing an STA to transmit a packet for an ISS; allowing the STA to receive a packet for an RSS; allowing the STA to transmit a packet for a SSW feedback; and allowing the STA to receive a packet for an SSW ACK, wherein the packet for the SSW feedback and the packet for the SSW ACK can include a field for indicating whether the packet for the ISS and the packet for the RSS are transmitted into the short SSW packet.

公开(公告)号：US20190238303A1

公开(公告)日：2019-08-01

申请号：US16328703

申请日：2018-10-01

Applicant: LG ELECTRONICS INC.

Inventor： Sungjin PARK ,  Jinmin KIM ,  Sunwoong YUN ,  Jinsoo CHOI

IPC: H04L5/14 ,  H04L1/18

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.

公开(公告)号：US20190222450A1

公开(公告)日：2019-07-18

申请号：US16321437

申请日：2018-03-27

Applicant: LG ELECTRONICS INC.

Inventor： Sunwoong YUN ,  Jinmin KIM ,  Sungjin PARK ,  Jinsoo CHOI

IPC: H04L27/26 ,  H04L5/00 ,  H04L1/06

CPC classification number: H04L27/2613 ,  H04L1/0618 ,  H04L5/00 ,  H04L5/0007 ,  H04L5/0051 ,  H04L27/26 ,  H04W84/12

Abstract: The present specification presents a method for transmitting and receiving, by a station, a signal in a wireless LAN (WLAN) system supporting eight space time streams at most, and an apparatus therefor. More particularly, the present specification presents a method for transmitting and receiving a signal including a pilot sequence for 3-channel bonding or 4-channel bonding per each space time stream when a station transmits and receives a signal over a channel in which three or four channels are bonded, and an apparatus therefor.

公开(公告)号：US20190199478A1

公开(公告)日：2019-06-27

申请号：US16325378

申请日：2018-04-09

Applicant: LG ELECTRONICS INC.

Inventor： Sunwoong YUN ,  Jinmin KIM ,  Sungjin PARK ,  Jinsoo CHOI

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

CPC classification number: H04L1/0625 ,  H04L1/00 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/06 ,  H04L27/206 ,  H04L27/26 ,  H04L27/36 ,  H04W84/12 ,  H04W88/08

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：US20190182815A1

公开(公告)日：2019-06-13

申请号：US16322256

申请日：2018-04-11

Applicant: LG ELECTRONICS INC.

Inventor： Saehee BANG ,  Jinmin KIM ,  Jinsoo CHOI

IPC: H04W72/04 ,  H04W16/28 ,  H04B7/0491

Abstract: Provided are a method for beamforming training and an apparatus using the same. An STA receives a beacon frame from an AP during a BTI. The STA transmits SSW frames during an A-BFT. The beacon frame comprises an A-BFT length indicating the number of a plurality of SSW slots included in the A-BFT, a FSS field indicating the number of the SSW frames allowed in one SSW slot among the plurality of SSW slots, and information about the type of the SSW frames used in one SSW slot. The information about the type of the SSW frames indicates that the SSW frames are determined to be one from among first type SSW frames and second type SSW frames. The second type SSW frames have a smaller size than that of the first type SSW frames. If the SSW frames are determined to be the second type SSW frames, the FSS field indicates the number of the second type SSW frames that can be transmitted in one SSW slot.

公开(公告)号：US20190132034A1

公开(公告)日：2019-05-02

申请号：US16173403

申请日：2018-10-29

Applicant: LG ELECTRONICS INC.

Inventor： Sunwoong YUN ,  Jinmin KIM ,  Eunsung PARK ,  Dongguk LIM ,  Jinsoo CHOI

IPC: H04B7/06 ,  H04B7/0417 ,  H04B7/0426 ,  H04L27/26 ,  H04W72/04

CPC classification number: H04B7/0617 ,  H04B7/0421 ,  H04B7/043 ,  H04B7/063 ,  H04L5/001 ,  H04L27/2666 ,  H04W72/0453

Abstract: Disclosed herein are a method for transmitting and receiving beamforming feedback information in a wireless local access network system and devices supporting the same.Particularly, disclosed herein are a method for transmitting and receiving beamforming feedback information related to feedback subcarrier indices, where the feedback subcarrier indices is determined based on a Ng value of subcarrier groupings and a number NCB of bonded channel.