公开(公告)号：US11006365B2

公开(公告)日：2021-05-11

申请号：US16464661

申请日：2017-11-27

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki Kim ,  Kiseon Ryu ,  Suhwook Kim ,  Hyunhee Park ,  Hangyu Cho ,  Jinsoo Choi

IPC: H04W52/02 ,  H04W76/11 ,  H04W80/02 ,  H04W84/12

Abstract: A method for transmitting, by an access point (AP), a wake-up radio (WUR) packet in a wireless local area network (WLAN) system, according to an embodiment of the present invention, comprises the steps of: setting a MAC header comprising at least two of type information of the WUR packet, receiver address information, and transmitter address information; and transmitting the WUR packet comprising the MAC header, wherein in setting the MAC header, when the WUR packet is a broadcast WUR packet, the AP omits the receiver address information from the MAC header and sets the transmitter address information, and wherein whether or not an STA belonging to the AP should perform a primary connectivity radio (PCR)-on procedure after receiving the broadcast WUR packet may be instructed through the type information of the WUR packet.

公开(公告)号：US11006285B2

公开(公告)日：2021-05-11

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：US10917217B2

公开(公告)日：2021-02-09

申请号：US16666044

申请日：2019-10-28

Applicant: LG ELECTRONICS INC.

Inventor： Eunsung Park ,  Wookbong Lee ,  Jinsoo Choi ,  Hangyu Cho

IPC: H04L5/00 ,  H04L27/26 ,  H04L29/08 ,  H04W72/04 ,  H04W84/12

Abstract: A method for transmitting a physical protocol data unit (PPDU) of a station (STA) device in a wireless local area network (WLAN) system, includes generating a PPDU configured based on a high efficiency-short training field (HE-STF) sequence including a HE-STF field and transmitting the PPDU, wherein the HE-STF field is transmitted on a channel, wherein the HE-STF sequence is mapped to the channel per 2-tone unit, wherein, when the channel is a 20 MHz channel, the HE-STF sequence is configured to have a structure of {a M Sequence, 0, 0, 0, 0, 0, 0, 0, the M sequence}, and, when the channel is a 40 MHz channel, the HE-STF sequence is configured to have a structure of {the M sequence, 0, 0, 0, 1, 0, 0, 0, the M sequence, 0, 0, 0, 0, 0, 0, 0, the M sequence, 0, 0, 0, 1, 0, 0, 0, the M sequence}.

公开(公告)号：US10855424B2

公开(公告)日：2020-12-01

申请号：US16457321

申请日：2019-06-28

Applicant: LG ELECTRONICS INC.

Inventor： Dongguk Lim ,  Jinyoung Chun ,  Jinsoo Choi ,  Hangyu Cho ,  Jinmin Kim ,  Eunsung Park

IPC: H04L5/00 ,  H04W72/04 ,  H04B7/06 ,  H04L27/26

Abstract: Provided is a method for a first station (STA) transmitting a frame to a second STA in a wireless LAN system. To this end, the first STA generates a wireless frame comprising a first part (L-part) for a first-type STA and a second part (HE-part) for a second-type STA, wherein the first part comprises a legacy short training field (L-STF), a legacy long training field (L-LTF) and a legacy signaling field (L-SIG), and the length of the L-SIG is set so as to indicate that the wireless frame is a frame of different types according to the remainder when the length of the L-SIG is divided by a predetermined natural number.

公开(公告)号：US10827429B2

公开(公告)日：2020-11-03

申请号：US16328676

申请日：2017-08-14

Applicant: LG ELECTRONICS INC.

Inventor： Eunsung Park ,  Dongguk Lim ,  Hangyu Cho ,  Jinsoo Choi

IPC: H04W52/02 ,  H04L27/02 ,  H04W84/12 ,  H04L27/06 ,  H04W72/04

Abstract: A method and an apparatus for transmitting a wakeup packet in a wireless LAN system are proposed. Particularly, a transmission device configures a wakeup packet and transmits the wakeup packet to a receiving device. The wakeup packet includes a sequence configured with first information and second information by applying an OOK method. The first information and the second information are configured with an on-signal or an off-signal. The on-signal is transmitted through a first symbol, which is generated by applying a first sequence to K consecutive subcarriers in the 20 MHz band and performing 64-point IFFT. The off-signal is transmitted through a second symbol, which is generated by applying a second sequence to K consecutive subcarriers in the 20 MHz band and performing 64-point IFNT. The first information and the second information are transmitted through a third symbol in which the first symbol or the second symbol is repeated.

公开(公告)号：US10791520B2

公开(公告)日：2020-09-29

申请号：US16467869

申请日：2017-08-14

Applicant: LG ELECTRONICS INC.

Inventor： Eunsung Park ,  Dongguk Lim ,  Hangyu Cho ,  Jinsoo Choi

IPC: H04W52/02 ,  H04L25/493 ,  H04L27/04 ,  H04L27/26 ,  H04W84/12

Abstract: A method and a device for transmitting a wakeup packet in a wireless LAN system are suggested. Particularly, a transmission device configures a wakeup packet and transmits same to a reception device. The wakeup packet includes a sequence including first information and second information, by applying an OOK method. The first information and the second formation are configured with an on-signal and an off-signal. The on-signal is transferred via a first symbol generated by applying a first sequence to K number of successive subcarriers in the 20 MHz band and performing 64-point IFFT on the subcarriers. The offsignal is transferred via a second symbol generated by applying a second sequence to the K number of successive subcarriers in the 20 MHz band and performing 64-point IFNT on the subcarriers. Of the K number of subcarriers to which the first sequence is applied, a coefficient for m number of subcarriers as a unit is set to 1 or −1 for the subcarriers, and a coefficient for the remaining subcarriers is set to 0. The first information and the second information are transmitted via a third symbol configured with the first symbol and the second symbol, respectively.

公开(公告)号：US10750401B2

公开(公告)日：2020-08-18

申请号：US16338983

申请日：2017-09-29

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki Kim ,  Kiseon Ryu ,  Hangyu Cho

IPC: H04W28/02 ,  H04W84/12 ,  H04W52/36 ,  H04W28/06 ,  H04W72/12

Abstract: A method by which a station (STA) transmits a frame including a buffer state report (BSR) in a wireless LAN (WLAN) system, according to one embodiment of the present invention, comprises the steps of: configuring the BSR of the STA to a first control sub-field among one or more control sub-fields aggregated in an aggregated-control (A-control) field; and transmitting the A-control field through a high throughput (HT) control filed included in a MAC header of the frame, wherein the first control sub-field for the BSR is configured as a short BSR when a second control sub-field in the A-control field includes uplink power headroom information of the STA.

公开(公告)号：US10743348B2

公开(公告)日：2020-08-11

申请号：US16094168

申请日：2017-04-17

Applicant: LG ELECTRONICS INC.

Inventor： Saehee Bang ,  Kiseon Ryu ,  Jeongki Kim ,  Hangyu Cho ,  Jinmin Kim

IPC: H04W4/00 ,  H04W74/08 ,  H04B7/0404 ,  H04W84/12 ,  H04W72/04 ,  H04W80/02 ,  H04W80/08

Abstract: A method for multi-user transmission in a wireless LAN system according to one embodiment of the present specification comprises the steps of: individually performing, by a STA including a first directional antenna and a second directional antenna, a first countdown procedure for the first directional antenna and a second countdown procedure for the second directional antenna according to a directional CCA operation for the first and second directional antennas; determining the first directional antenna as a primary antenna when the first countdown procedure is completed before the second countdown procedure; determining whether the second directional antenna is idle from a threshold time before a completion time point of the first countdown procedure to the completion time point; and transmitting multiple streams on the basis of the first and second directional antennas according to the result of the determination.

公开(公告)号：US10728846B2

公开(公告)日：2020-07-28

申请号：US15560092

申请日：2016-07-01

Applicant: LG ELECTRONICS INC.

Inventor： Hyeyoung Choi ,  Kiseon Ryu ,  Jeongki Kim ,  Hangyu Cho ,  Suhwook Kim ,  Hyunhee Park

IPC: H04W52/02 ,  H04W74/00 ,  H04W74/08 ,  H04W84/12 ,  H04L5/00 ,  H04L27/26

Abstract: A method for performing uplink Orthogonal Frequency Division Multiple Access (UL OFDMA) based random access to an Access Point (AP) by a Station (STA) in a Wireless Local Area Network (WLAN) system is proposed. For the purpose, the STA sets a random value within an OFDMA Contention Window (CWO) as an OFDMA Back-Off (OBO) value, receives a beacon frame from the AP, the beacon frame including transmission start time information of one or more Trigger Frames for Random Access (TF-Rs), decrements the OBO value based on reception of the one or more TF-Rs, and if the OBO value reaches 0, transmits a random access request frame in resources selected randomly from among resources allocated to the STA.

公开(公告)号：US10716061B2

公开(公告)日：2020-07-14

申请号：US16441817

申请日：2019-06-14

Applicant: LG ELECTRONICS INC.

Inventor： Giwon Park ,  Kiseon Ryu ,  Jeongki Kim ,  Hangyu Cho ,  Suhwook Kim

IPC: H04W52/02 ,  H04W74/06 ,  H04W84/12 ,  H04W4/06 ,  H04W88/08

Abstract: Disclosed are a method and a device for triggering a plurality of PS-poll frames in a wireless LAN. The method for triggering a plurality of PS-poll frames in a wireless LAN can comprise the steps of: transmitting, by an AP, a beacon frame; transmitting, by the AP, a first PS-poll trigger frame within a beacon interval; receiving, by the AP, a plurality of first PS-poll frames transmitted on the basis of a UL MU transmission by a first STA group as a response to the first PS-poll trigger frame; transmitting, by the AP, a plurality of first downlink data frames to a plurality of STAs on the basis of a DL MU transmission as a response to the plurality of first PS-poll frames; transmitting, by the AP, a second PS-poll trigger frame within a beacon interval; receiving, by the AP, a plurality of second PS-poll frames transmitted on the basis of the UL MU transmission by a second STA group as a response to the second PS-poll trigger frame; and transmitting, by the AP, a plurality of second downlink data frames to the plurality of STAs on the basis of the DL MU transmission as a response to the plurality of second PS-poll frames.