公开(公告)号：US20190273768A1

公开(公告)日：2019-09-05

申请号：US16419393

申请日：2019-05-22

Applicant: LG ELECTRONICS INC.

Inventor： Jinyoung CHUN ,  Kiseon RYU ,  Wookbong LEE ,  Hangyu CHO

IPC: H04L29/06 ,  H04L5/14 ,  H04L27/26 ,  H04L5/00 ,  H04L1/16 ,  H04L1/00

Abstract: A Station (STA) in a wireless communication system, the STA including a transceiver configured to transmit and receive a wireless signal; and a processor configured to control the transceiver. Further, the processor is further configured to: receive, from An access point (AP), a downlink (DL) multi-user (MU) Physical Protocol Data Unit (PPDU), wherein the DL MU PPDU includes a DL data and trigger frame for an uplink (UL) orthogonal frequency-division multiple access (OFDMA) transmission; and transmit, to the AP, an UL MU PPDU generated based on the DL MU PPDU, wherein the trigger frame is transmitted in a first frequency region of the DL MU PPDU, and the DL data is transmitted in a second frequency region of the DL MU PPDU, when the trigger frame is for multiple stations (STAs), and wherein the first frequency region and the second frequency region are different frequency region.

公开(公告)号：US20190253972A1

公开(公告)日：2019-08-15

申请号：US16335221

申请日：2017-09-20

Applicant: LG ELECTRONICS INC.

Inventor： Hyunhee PARK ,  Kiseon RYU ,  Suhwook KIM ,  Jeongki KIM ,  Hangyu CHO

IPC: H04W52/02

CPC classification number: H04W52/0235 ,  H04W52/02 ,  H04W84/12 ,  Y02D70/00 ,  Y02D70/10 ,  Y02D70/14

Abstract: A method, for managing power, performed by means of a first wireless terminal of the present specification comprises the steps of: transmitting to a second wireless terminal a turn-off packet comprising a power indicator, which indicates that a main radio module enters into a deactivated state, and a TWT request parameter set which is for requesting a TWT operation for a WUR module; if a response packet comprising a TWT response parameter set as a response to the TWT request parameter set is received from the second wireless terminal, indicating the WUR module to maintain a turn-off state until entering a TWT service interval in accordance with the TWT response parameter set; indicating the WUR module to enter into a turn-on state from a turn-off state when entering the TWT service interval; determining whether or not update information is received from the second wireless terminal on the basis of the WUR module in the TWT service interval; and, if the update information is received in the TWT service interval, indicating the main radio module to enter into an activated state.

公开(公告)号：US20190223220A1

公开(公告)日：2019-07-18

申请号：US16362521

申请日：2019-03-22

Applicant: LG ELECTRONICS INC.

Inventor： Hyeyoung CHOI ,  Kiseon RYU ,  Jeongi KIM ,  Hangyu CHO ,  Suhwook KIM

IPC: H04W74/08 ,  H04W74/00 ,  H04W84/12

CPC classification number: H04W74/0816 ,  H04W74/004 ,  H04W74/006 ,  H04W74/0833 ,  H04W84/12 ,  Y02D70/00 ,  Y02D70/1222 ,  Y02D70/1224 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/21 ,  Y02D70/22

Abstract: One embodiment of the present invention relates to a method by which a station (STA) performs uplink transmission in a wireless communication system, the method for performing uplink transmission comprising the steps of: receiving a trigger frame from an AP; and performing uplink transmission as a response to the trigger frame, wherein, when a network allocation vector (NAV) of the STA receiving the trigger frame is idle and clear channel assessment (CCA) result is idle, the uplink transmission is performed.

公开(公告)号：US20190182835A1

公开(公告)日：2019-06-13

申请号：US16275248

申请日：2019-02-13

Applicant: LG ELECTRONICS INC.

Inventor： Jinsoo CHOI ,  Hangyu CHO ,  Wookbong LEE

IPC: H04W72/04 ,  H04L5/00 ,  H04W72/08

CPC classification number: H04W72/0453 ,  H04L5/0037 ,  H04W72/042 ,  H04W72/08 ,  H04W84/12

Abstract: Disclosed is a method and apparatus for allocating a wireless resource in order to prevent interference in a wireless LAN. A method for allocating a wireless resource in a wireless LAN may comprise the steps of: allocating, by an AP, a plurality of wireless resources for a plurality of STAs included in a BSS, in the entire bandwidth, respectively; and transmitting, by the AP, a PPDU to the plurality of STAs through the plurality of wireless resources, respectively, wherein each of the plurality of wireless resources is a combination of a plurality of wireless units defined in different sizes on a frequency axis, and each of the plurality of wireless resources can be determined in consideration of the size of the bandwidth of at least one STA supporting a bandwidth smaller than the size of the entire bandwidth from among the plurality of STAs.

公开(公告)号：US20190165883A1

公开(公告)日：2019-05-30

申请号：US15742437

申请日：2016-07-07

Applicant: LG ELECTRONICS INC.

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

IPC: H04L1/00 ,  H04W74/00 ,  H04W72/12 ,  H04W72/04

Abstract: An embodiment of the present invention suggests a method in which an access point (AP) obtains channel quality information in a wireless LAN system. The AP transmits, to at least one station (STA), a null data packet announcement (NDP-A) frame including information on transmission of a subsequent null data packet (NDP) frame, and transmits an NDP frame to the at least one station on the basis of information on the NDP-A frame. Further, the AP receives, from the at least one STA, a feedback frame including downlink channel quality information. At this time, the NDP frame includes an L-part for a legacy STA and a high efficiency (HE)-part for a HE STA, wherein the HE-part consists of a HE-signaling A (HE-SIG A) field, a HE-short training field (HE-STF), and a HE-long training field (HE-LTF).

公开(公告)号：US20190141747A1

公开(公告)日：2019-05-09

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: H04W74/08 ,  H04B7/0404 ,  H04W72/04

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：US20190124638A1

公开(公告)日：2019-04-25

申请号：US15571797

申请日：2016-03-14

Applicant: LG ELECTRONICS INC.

Inventor： Dongguk LIM ,  Jinsoo CHOI ,  Hangyu CHO ,  Eunsung PARK ,  Wookbong LEE

IPC: H04W72/04

Abstract: According to one embodiment of the present invention, an AP generates a frame including a signaling field and a data field so as to transmit the frame to one or more STAs, wherein: the signaling field includes a first signaling field having first common control information on the one or more STAs, and a second signaling field having individual control information for each of the one or more STAs; and the second signaling field includes a common field having second common control information on the one or more STAs, and individual fields having individual control information for each of the one or more STAs. In addition, if the frame is transmitted with a bandwidth of 40 MHz or more, the second signaling field transmits independent control information in two adjacent 20 MHz bands.

公开(公告)号：US20190116596A1

公开(公告)日：2019-04-18

申请号：US16218119

申请日：2018-12-12

Applicant: LG ELECTRONICS INC.

Inventor： Kiseon RYU ,  Jeongki KIM ,  Hangyu CHO ,  Suhwook KIM

IPC: H04W72/04 ,  H04W74/08 ,  H04W52/54 ,  H04W74/00

CPC classification number: H04W72/0453 ,  H04W52/14 ,  H04W52/146 ,  H04W52/54 ,  H04W72/04 ,  H04W72/0406 ,  H04W72/0413 ,  H04W72/042 ,  H04W74/00 ,  H04W74/006 ,  H04W74/08 ,  H04W74/0808 ,  H04W74/0891 ,  H04W84/12

Abstract: Proposed is a method for determining transmission using a network allocation vector (NAV) in a wireless LAN system. Specifically, after a receiving device receives a trigger frame, which triggers an uplink multiple user transmission, from a transmitting device, whether to transmit an uplink physical layer protocol data unit (PPDU) corresponding to the trigger frame is determined using the NAV of the receiving device. In this case, if the NAV is established by an intra-basic service set (BSS) frame, whether to transmit the uplink PPDU is determined without taking the NAV into consideration.

公开(公告)号：US20190097862A1

公开(公告)日：2019-03-28

申请号：US15527289

申请日：2015-11-17

Applicant: LG ELECTRONICS INC.

Inventor： Kilbom LEE ,  Wookbong LEE ,  Eunsung PARK ,  Hangyu CHO ,  Jiwon KANG

IPC: H04L27/26 ,  H04L27/227

CPC classification number: H04L27/2676 ,  H04L5/0007 ,  H04L5/001 ,  H04L27/0014 ,  H04L27/227 ,  H04L27/2657 ,  H04L2027/0026

Abstract: Disclosed is a CFO estimation method, which generates a first function defined by a received signal of two sequential OFDM symbols for a specific subcarrier, generates a second function defined on the basis of signs and magnitudes of a real number part and an imaginary number part of the first function, repeats the steps of generating the first function and the second function for all of a subcarrier set, and determines, as a residual CFO, a phase of a third function obtained by adding up the results of the repetition.

公开(公告)号：US20190097854A1

公开(公告)日：2019-03-28

申请号：US16083320

申请日：2017-03-09

Applicant: LG ELECTRONICS INC.

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

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

Abstract: The present specification relates to a method for transmitting a signal by a station in a wireless LAN (WLAN) system. More specifically, the present specification proposes a frequency division multiple access (FDMA) frame structure for transmitting, by a station, a signal to a plurality of stations by using an FDMA method, and presents a method for transmitting a signal on the basis of the FDMA frame structure and a device therefor.