公开(公告)号：US10567056B2

公开(公告)日：2020-02-18

申请号：US15758325

申请日：2016-09-19

Applicant: LG ELECTRONICS INC.

Inventor： Sanggook Kim ,  Kyungtae Jo ,  Hangyu Cho

IPC: H04B7/06 ,  H04B7/08 ,  H04W74/08 ,  H04W24/10

Abstract: A method for beamforming training and a device using the same are provided. The device receives, from an access point (AP), a plurality of beacon frames for a sector sweep at a beacon transmission interval (BTI). At least one of the plurality of beacon frames includes an overload indicator indicating an overload state. The device determines whether to initiate a random backoff in an association beamforming training (A-BFT) following the BTI, on the basis of the overload indicator.

公开(公告)号：US10567046B2

公开(公告)日：2020-02-18

申请号：US15508344

申请日：2015-08-06

Applicant: LG ELECTRONICS INC.

Inventor： Jinsoo Choi ,  Kilbom Lee ,  Wookbong Lee ,  Hangyu Cho ,  Jiwon Kang

IPC: H04B7/0452 ,  H04L5/00 ,  H04L27/26

Abstract: A method and device for transmitting a training field in a wireless LAN are disclosed. The method for transmitting a training field in a wireless LAN may include the steps of generating PPDUs to be respectively transmitted to a plurality of STAs by an AP, and respectively transmitting the PPDUs by the AP to the plurality of STAS respectively through a plurality of sub bands on an OFDMA-based overlapped time resource, wherein the PPDU may include the training field, the training field may be generated based on a training sequence, and the training sequence may be designed so that a non-null tone for AGC is included in a plurality of tone that corresponds to the plurality of sub bands, respectively.

公开(公告)号：US10548154B2

公开(公告)日：2020-01-28

申请号：US16395963

申请日：2019-04-26

Applicant: LG ELECTRONICS INC.

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

IPC: H04L1/16 ,  H04L1/18 ,  H04L5/00 ,  H04L27/26 ,  H04W72/04 ,  H04W72/12 ,  H04W84/12 ,  H04W88/08

Abstract: The present document relates to a method for efficiently performing uplink multi-user transmission in a wireless LAN system and an apparatus therefor. To this end, an access point (AP) may transmit a downlink multi-user frame to a plurality of STAs, receive an uplink frame including an acknowledgement/non-acknowledgement (ACK/NACK) signal for the downlink multi-user frame and an uplink scheduling request signal from at least two STAs among the STAs, transmit a downlink frame including uplink scheduling information to the at least two STAs on the basis of the uplink scheduling request signal, and receive an uplink multi-user frame including data from the at least two STAs in response thereto. Here, an SIG field of the downlink frame preferably comprises an indicator indicating that the downlink frame includes uplink multi-user scheduling information.

公开(公告)号：US10548146B2

公开(公告)日：2020-01-28

申请号：US15566596

申请日：2016-04-15

Applicant: LG ELECTRONICS INC.

Inventor： Jinyoung Chun ,  Kiseon Ryu ,  Dongguk Lim ,  Wookbong Lee ,  Jinsoo Choi ,  Hangyu Cho ,  Eunsung Park

IPC: H04W72/08 ,  H04W72/04 ,  H04W72/12 ,  H04W84/12

Abstract: An uplink (UL) sounding support method of a station (STA) for measuring a an UL channel state in a wireless local area network (WLAN) system, according to one embodiment of the present invention, comprises the steps of: receiving null data packet announcement (NDPA) information indicating an UL transmission of an the NDP frame; receiving trigger information indicating an UL MU transmission resource of the NDP frame; and UL multi-user (MU)-transmitting the NDP frame using the UL MU transmission resource indicated by the trigger information, wherein the trigger information may comprise at least one of spatial resource information or the frequency resource information to be used for the UL MU transmission of the NDP frame.

公开(公告)号：US10511368B2

公开(公告)日：2019-12-17

申请号：US15655290

申请日：2017-07-20

Applicant: LG ELECTRONICS INC.

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

IPC: H04B7/06 ,  H04W72/04 ,  H04B7/08 ,  H04L5/00 ,  H04W74/00 ,  H04L29/06 ,  H04W84/12

Abstract: A method of transmitting and receiving a signal, which is transmitted by a station in a wireless communication system, is disclosed in the present specification. The method can include the steps of receiving a PPDU and performing beamforming training based on a TRN field of the received PPDU. In this case, a training length field belonging to an L-header field of the PPDU indicates a length of the TRN field from the timing at which the PPDU ends in reverse order and a length field belonging to the L-header field of the PPDU can indicate a length resulted from subtracting the length of the TRN field indicated by the training length field from a length of the PPDU after the L-header field.

公开(公告)号：US10485028B2

公开(公告)日：2019-11-19

申请号：US15537355

申请日：2016-10-04

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki Kim ,  Kiseon Ryu ,  Jinyoung Chun ,  Jinsoo Choi ,  Suhwook Kim ,  Hangyu Cho

IPC: H04W74/08 ,  H04W16/02 ,  H04W52/02 ,  H04W84/12 ,  H04L29/08 ,  H04W74/00

Abstract: A method by which an access point (AP) supports multi-basic service sets (BSSs) in a wireless LAN system, according to one embodiment of the present invention, comprises the steps of: setting a plurality of BSS identifiers for each individual BSS belonging to the multi-BSSs; and transmitting a frame for notifying a station (STA) of the plurality of BSS identifiers set for each individual BSS, wherein the plurality of BSS identifiers include a first BSS identifier and a second BSS identifier, which has a length shorter than that of the first BSS identifier, and the first BSS identifier is set to different values for each individual BSS, but the second BSS identifier can be set to the same value for all of the multi-BSSs.

公开(公告)号：US10469141B2

公开(公告)日：2019-11-05

申请号：US16384751

申请日：2019-04-15

Applicant: LG ELECTRONICS INC.

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

IPC: H04B7/0452 ,  H04L27/26 ,  H04W72/04 ,  H04W84/12 ,  H04L5/00 ,  H04L25/02

Abstract: Provided are a method and a device for transmitting a feedback frame in a wireless LAN system. Particularly, a first wireless station receives, from a second wireless station, a feedback request field including an LTF. The first wireless station configures feedback information on a wireless channel corresponding to a preset frequency band by using the feedback request field. The first wireless station transmits the feedback information to the second wireless station.

公开(公告)号：US20190327052A1

公开(公告)日：2019-10-24

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：US10455556B2

公开(公告)日：2019-10-22

申请号：US15424629

申请日：2017-02-03

Applicant: LG ELECTRONICS INC.

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

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

Abstract: This specification proposes a signal processing method for changing an operating mode for transmitting a PPDU in a wireless LAN system. More specifically, a first station transmits request information requesting for a change in the operating mode to a second station. The first station transmits a first PPDU supporting a first wireless LAN system to the second station based on the request information. The first station receives a Block ACK (BA) as a response to the first PPDU. The request information includes delay time information indication a time during which indication information is applied.

公开(公告)号：US10454733B2

公开(公告)日：2019-10-22

申请号：US15516773

申请日：2015-10-05

Applicant: LG ELECTRONICS INC.

Inventor： Kilbom Lee ,  Jinsoo Choi ,  Wookbong Lee ,  Hangyu Cho ,  Jiwon Kang

IPC: H04L27/26 ,  H04W84/12

Abstract: Disclosed is a sequence generation method for: generating a basic sequence structure comprising C52, which is composed of 52 tones, and D12, which is composed of 12 tones; selecting any one among a plurality of phase rotation factors, which are determined in advance for a bandwidth and applied to the basic sequence structure by unit of C52 or C52D12; and generating a sequence inserted into a preamble to be transmitted to a terminal.