公开(公告)号：USRE49983E1

公开(公告)日：2024-05-21

申请号：US16785402

申请日：2020-02-07

Applicant: LG Electronics Inc.

Inventor： Yong Ho Seok

IPC: H04W4/20 ,  H04W72/0446 ,  H04W74/00 ,  H04W74/08 ,  H04W74/0816

CPC classification number: H04W74/0816 ,  H04W72/0446 ,  H04W74/006

Abstract: A method for transmitting data in a wireless communication system, the method includes transmitting, by a first station, a plurality of request to send (RTS) frames to a second station through a plurality of subchannels, each of the plurality of RTS frames being transmitted through a corresponding one of the plurality of subchannels, each of the plurality of subchannels having a 20 megahertz (MHz) bandwidth; receiving, by the first station, at least one clear to send (CTS) frame in response to at least one of the plurality of RTS frames from the second station through at least one idle subchannel of the plurality of subchannels; and transmitting, by the first station, a data frame to the second station after receiving the at least one CTS frame, wherein each of the plurality of RTS frames includes first channel information related to the plurality of subchannels.

公开(公告)号：US10652701B2

公开(公告)日：2020-05-12

申请号：US14516302

申请日：2014-10-16

Applicant: LG ELECTRONICS INC.

Inventor： Dae Won Lee ,  Yong Ho Seok

IPC: H04W4/08 ,  H04B7/04 ,  H04W84/12 ,  H04B7/0452 ,  H04W72/04 ,  H04W72/12

Abstract: A method of transmitting a spatial stream for multi user (MU)-multiple input multiple output (MIMO) in a wireless local area network system and a transmitter for performing the method are provided. The method includes transmitting, to a receiver, a management frame including group information to assign or change a position of a plurality of spatial streams corresponding to each of a plurality of groups, and transmitting, to the receiver, a frame including at least one spatial stream, wherein the group information includes a plurality of group indicators and a plurality of spatial stream (SS) indicators, each of the plurality of group indicators indicating whether the receiver is a member of each of the plurality of groups, each of the plurality of SS indicators indicating a position of the plurality of spatial streams corresponding to each of the plurality of groups.

公开(公告)号：US10123341B2

公开(公告)日：2018-11-06

申请号：US15180884

申请日：2016-06-13

Applicant: LG ELECTRONICS INC.

Inventor： Byeong Woo Kang ,  Yu Jin Noh ,  Dae Won Lee ,  Yong Ho Seok

IPC: H04W72/08 ,  H03M13/00 ,  H04L1/00 ,  H04L1/06 ,  H04L27/26 ,  H03M13/23 ,  H03M13/27 ,  H03M13/35 ,  H04L5/00 ,  H04L25/02 ,  H04W84/12

Abstract: A method is provided for transmitting data in a wireless local area network. A transmitter generates an encoded data unit by performing a channel coding to transmission data to be included in a data field of a physical layer protocol data unit (PPDU). The transmitter generates at least one spatial block by re-arranging the encoded data unit, and divides each spatial block of at least one spatial block into two frequency segments. A bandwidth of each frequency segment is half of a bandwidth of the each spatial block. The transmitter interleaves the two frequency segments to generate a first interleaved segment and a second interleaved segment, respectively, and generates first and second mapped sequences by respectively mapping the first and second interleaved segments into a signal constellation. The transmitter performs an Inverse Discrete Fourier Transform (IDFT) on the first and second mapped sequences to generate and transmit a transmission signal.

公开(公告)号：US10117168B2

公开(公告)日：2018-10-30

申请号：US14729985

申请日：2015-06-03

Applicant: LG ELECTRONICS INC.

Inventor： Yong Ho Seok

IPC: H04W48/20 ,  H04W74/08 ,  H04W28/08 ,  H04W36/22 ,  H04W84/12

Abstract: A method for selecting a channel in a wireless local area network, and a device therefore. The method according to one embodiment includes receiving an extended quiet interval element from an access point. The extended quiet interval element indicates that at least one of a primary channel and a secondary channel is to be quieted during a quiet interval for a radar detection. The method according to the embodiment includes quieting the indicated channel during the quiet interval.

公开(公告)号：US10038531B2

公开(公告)日：2018-07-31

申请号：US15285942

申请日：2016-10-05

Applicant: LG ELECTRONICS INC.

Inventor： Yong Ho Seok ,  Jong Hyun Park ,  Eun Sun Kim

IPC: H04W72/04 ,  H04L5/00 ,  H04W74/08 ,  H04L1/00 ,  H04W84/12 ,  H04W28/06

CPC classification number: H04L5/0048 ,  H04L1/0008 ,  H04L5/0044 ,  H04W28/06 ,  H04W74/0816 ,  H04W84/12

Abstract: A method for channel access in a wireless local area network is provided. The method includes: transmitting, a plurality of Request To Send (RTS) frames over a plurality of subchannels to a receiver, each RTS frame being transmitted over each of the plurality of subchannels; receiving at least one Clear To Send (CTS) frame over at least one subchannel among the plurality of subchannels from the receiver; each CTS frame being transmitted over each of the at least one subchannel, transmitting a data unit to the receiver. The data unit includes at least one data frame. The at least one data frame is transmitted over at least one selected subchannel among the at least one subchannel, each data frame being transmitted over each selected subchannel.

公开(公告)号：US10034178B2

公开(公告)日：2018-07-24

申请号：US15299544

申请日：2016-10-21

Applicant: LG ELECTRONICS INC.

Inventor： Yong Ho Seok ,  Eun Sun Kim

IPC: H04W16/14 ,  H04W74/00 ,  H04W74/08 ,  H04W72/04 ,  H04W84/12

Abstract: Disclosed are a method and apparatus for multi-channel operation, performed by an access point (AP), in a WLAN system, the method includes: transmitting channel assignment information to a plurality of stations (STAs), in which the channel assignment information is for assigning at least one of a first channel and a second channel to each of the plurality of STAs; transmitting channel activity information to the plurality of STAs, in which the channel activity information is for indicating an activity duration where the AP transmit or receive a frame through each of the first channel and the second channel; and transmitting or receiving a frame through the first channel or the second channel on the basis of the channel activity information.

公开(公告)号：US09781615B2

公开(公告)日：2017-10-03

申请号：US14350762

申请日：2012-10-22

Applicant: LG ELECTRONICS INC.

Inventor： Hyang Sun You ,  Yong Ho Seok ,  Jong Hyun Park

IPC: H04W48/16 ,  H04W24/06

CPC classification number: H04W24/06 ,  H04W48/16

Abstract: Disclosed are a link adaptation method and device in an active scanning method. The link adaptation method transmits a the probe request frame comprising null data packet announcement (NDPA) information elements, transmits a null data packet (NDP) frame comprising only a physical layer convergence protocol (PLCP) header after transmitting the probe request frame, and receives a the probe response frame comprising feedback information elements measured based on the NDP frame. Therefore, the invention is capable of improving data transmission efficiency by using a modulation coding scheme (MCS) suitable for a channel state from initial connection.

公开(公告)号：US09674783B2

公开(公告)日：2017-06-06

申请号：US14967852

申请日：2015-12-14

Applicant: LG Electronics Inc.

Inventor： Yong Ho Seok

IPC: H04W52/02 ,  H04B7/0452 ,  H04W72/12

CPC classification number: H04W52/0216 ,  H04B7/0452 ,  H04W52/0219 ,  H04W52/0225 ,  H04W72/1263 ,  Y02D70/142 ,  Y02D70/444

Abstract: A method of transmitting a data frame in a wireless local area network (WLAN) is provided. The method includes transmitting, by an access point (AP), a scheduling information element including information on a time period for data frame transmission to a first station (STA) and a second STA, wherein the scheduling information element includes an offset field indicating a start time point of the time period and transmitting, by the AP, the data frame to the first STA and the second STA by using a multi user-multiple input multiple output (MU-MIMO) transmission scheme after the start time point indicated by the offset field.

公开(公告)号：US09673879B2

公开(公告)日：2017-06-06

申请号：US14883887

申请日：2015-10-15

Applicant: LG ELECTRONICS INC.

Inventor： Yu Jin Noh ,  Dae Won Lee ,  Yong Ho Seok

IPC: H04B7/04 ,  H04W52/02 ,  H04W4/08 ,  H04W72/04 ,  H04W84/12 ,  H04B7/0452

CPC classification number: H04B7/0452 ,  H04W4/08 ,  H04W52/0216 ,  H04W52/0235 ,  H04W72/044 ,  H04W84/12 ,  Y02D70/142

Abstract: A communication method that includes transmitting a power save multi-poll (PSMP) frame containing a power save mode (PSM) of a non-access point (AP) station (STA) to a first station and to a second station which are paired with an AP on the basis of multiple input multiple output (MIMO) technology. Information on the PSM indicates the point in time of starting a downlink transmission period, the duration of the downlink transmission period, and transmission object station identification information. The method further involves transmitting a data frame to the first station and to the second station on the basis of the MIMO technology during the downlink transmission period. The transmission object station identification information indicates a group identifier for indicating an object station group including the first station and the second station.

公开(公告)号：US09661555B2

公开(公告)日：2017-05-23

申请号：US14842657

申请日：2015-09-01

Applicant: LG ELECTRONICS INC.

Inventor： Dae Won Lee ,  Yong Ho Seok

IPC: H04W4/00 ,  H04W48/08 ,  H04W48/12 ,  H04B7/0452 ,  H04W72/04 ,  H04W84/12 ,  H04W48/20

CPC classification number: H04W48/12 ,  H04B7/0452 ,  H04W48/08 ,  H04W48/20 ,  H04W72/042 ,  H04W84/12

Abstract: A method for reporting load information in a wireless local area network system, and a device therefore are discussed. The method according to one embodiment includes transmitting basic service set (BSS) load information, the BSS load information including a multi user (MU) multiple input multiple output (MIMO) capable station count field, a first utilization field and a second utilization field. In addition, the MU-MIMO capable station count field indicates a total number of stations with MU reception capability currently associated with a BSS managed by the AP. Additionally, the first utilization field includes information about an interval during which a 40 MHz channel width is busy. Lastly, the second utilization field include information about an interval during which a 80 MHz channel width is busy.