公开(公告)号：US11277812B2

公开(公告)日：2022-03-15

申请号：US16642821

申请日：2018-08-29

Applicant: LG ELECTRONICS INC.

Inventor： Myeongjin Kim ,  Sangrim Lee ,  Woonghee Lee

IPC: H04W24/00 ,  H04W64/00 ,  G01S11/04 ,  H04L5/00 ,  H04W72/04

Abstract: A method whereby a user equipment transmits/receives a reference signal for distance measurement in a wireless communication system according to an embodiment of the present invention comprises: a step of receiving, from a base station, a downlink (DL) positioning reference signal (PRS) including sinusoidal components of different angular frequencies; a step of acquiring a phase difference between the sinusoidal components of the DL PRS; a step of transmitting a first uplink (UL) PRS indicating the phase difference, so as to measure a first distance between the user equipment and the base station at a first point of time; and a step of transmitting a second UL PRS so as to measure a second distance between the user equipment, the position of which has changed after the first point of time, and the base station, wherein the user equipment may configure the same phase difference, acquired via the DL PRS before the first point of time, for the second UL PRS, without receiving an additional DL PRS for measuring the second distance. The user equipment is capable of communicating with at least one of another user equipment, a user equipment related to an autonomous driving vehicle, the base station or a network.

公开(公告)号：US11677467B2

公开(公告)日：2023-06-13

申请号：US17310562

申请日：2019-02-12

Applicant: LG ELECTRONICS INC.

Inventor： Hojae Lee ,  Sangrim Lee ,  Woonghee Lee

IPC: H04B10/116

CPC classification number: H04B10/116

Abstract: Proposed is a method for transmitting signals in visible light communications. The method for transmitting signals in visible light communications comprises: a step of receiving interference information from a receiving end; a step of transmitting a constellation set index to the receiving end; and a step of transmitting, to the receiving end, signals modified on the basis of the constellation set index. Meanwhile, the constellation set index may be selected on the basis of the received interference information.

公开(公告)号：US11019457B2

公开(公告)日：2021-05-25

申请号：US16650172

申请日：2018-09-28

Applicant: LG Electronics Inc.

Inventor： Woonghee Lee ,  Sangrim Lee ,  Hojae Lee

IPC: H04W4/029 ,  G01S13/08 ,  H04W28/04

Abstract: The present invention provides a method for reducing a wireless positioning error by a target node in a multi-node system. Specifically, the method comprises the steps of: receiving information on the positions of anchor nodes from the anchor nodes, respectively; performing ranging of each of the anchor nodes; and when the target node is in a first state, transmitting information on the position of the target node to neighboring nodes except for each of the anchor nodes. The target node is capable of communicating with at least one of another target node, a target node related to an autonomous driving vehicle, a base station or a network.

公开(公告)号：US11346931B2

公开(公告)日：2022-05-31

申请号：US16972567

申请日：2019-06-18

Applicant: LG ELECTRONICS INC.

Inventor： Woonghee Lee ,  Sangrim Lee

IPC: H04W8/00 ,  G01S13/08

Abstract: A method of estimating, by a user equipment (UE), a location of the UE in a wireless communication system is disclosed. The method includes measuring distances between a plurality of anchor nodes and the UE; creating a first matrix using values of the measured distances; creating a third matrix based on the first matrix and a second matrix, the second matrix being a centering matrix; and estimating the location of the UE based on a result of comparing a first value generated based on eigenvalues of the third matrix with a second value that is a pre-defined reference value, wherein when the first value is greater than the second value, all the measured distances are distances measured through a line of sight (LOS) path, wherein when the first value is less than the second value, some of the measured distances are distances measured through a non-line of sight (NLOS) path.

公开(公告)号：US11129130B2

公开(公告)日：2021-09-21

申请号：US16956550

申请日：2017-12-21

Applicant: LG ELECTRONICS INC.

Inventor： Gwanmo Ku ,  Sangwook Han ,  Woonghee Lee

IPC: H04W64/00 ,  H04B17/318 ,  H04W4/40 ,  H04W16/28 ,  H04W24/10

Abstract: According to an embodiment of the present specification, a method for measuring a position by a terminal in a wireless communication system can be provided. The method for measuring a position by a terminal may comprise the steps of: receiving MIB information from a base station by a terminal; setting a reference for time on the basis of the received MIB information; receiving a positioning-related signal from the base station by the terminal; measuring the positioning-related signal; and acquiring distance information and orientation information of the terminal on the basis of the measured positioning-related signal. The terminal is capable of communicating with at least one of another UE, a UE related to an autonomous driving vehicle, a base station or a network.

公开(公告)号：US11469819B2

公开(公告)日：2022-10-11

申请号：US17425210

申请日：2019-01-30

Applicant: LG Electronics Inc.

Inventor： Hojae Lee ,  Dongkyu Kim ,  Bonghoe Kim ,  Sangrim Lee ,  Woonghee Lee ,  Kijun Jeon

IPC: H04B10/116 ,  H04B10/54 ,  H04B10/69

Abstract: Proposed is a signal transmission method for a transmitting end performing visible light communication. The signal transmission method for a transmitting end performing visible light communication comprises: a step of modulating a signal; and a step of applying analog dimming control on the modulated signal and transmitting same. Meanwhile, the analog dimming control may include biasing of the modulated signal, and scaling of the modulated signal.

公开(公告)号：US11005541B2

公开(公告)日：2021-05-11

申请号：US16765844

申请日：2018-11-21

Applicant: LG ELECTRONICS INC.

Inventor： Woonghee Lee ,  Sangrim Lee ,  Hojae Lee

IPC: H04K1/10 ,  H04L27/28 ,  H04B7/0417 ,  H04B17/27 ,  H04B7/06

Abstract: A method for transmitting feedback information by a terminal may comprise the steps of: measuring a channel; multiplying a first matrix associated with the measured channel by a transformation matrix, so as to obtain a second matrix and transmitting the obtained second matrix to a base station in a bit format. In addition, the transformation matrix may be determined on the basis of an angle offset satisfying a predetermined condition.

公开(公告)号：US10972169B2

公开(公告)日：2021-04-06

申请号：US16761588

申请日：2018-11-05

Applicant: LG ELECTRONICS INC.

Inventor： Gwanmo Ku ,  Haewook Park ,  Kilbom Lee ,  Sangrim Lee ,  Woonghee Lee ,  Hojae Lee ,  Hyukjin Chae ,  Sangwook Han

IPC: H04B7/06 ,  H04B17/327 ,  H04B17/336 ,  H04L5/00

Abstract: The method for feedback of channel quality information in a wireless communication system, according to one embodiment of the present invention, is performed by a terminal and comprises the steps of: receiving feedback configuration information, including information on disjoint segmentation indicating the indexes of channel or beam quality-related parameters for broadcast or multicast services, from a base station; and according to the information on disjoint segmentation in the feedback configuration information, encoding the index of a channel or beam quality-related parameter to be reported and transmitting same to the base station, wherein the disjoint segmentation includes multiple subsets which do not overlap and which have different lengths, and the index of the channel or beam quality-related parameter, which is transmitted to the base station, may indicate a predetermined value in one subset among the multiple subsets.

公开(公告)号：US20200236505A1

公开(公告)日：2020-07-23

申请号：US16650172

申请日：2018-09-28

Applicant: LG Electronics Inc.

Inventor： Woonghee Lee ,  Sangrim Lee ,  Hojae Lee

IPC: H04W4/029 ,  H04W28/04 ,  G01S13/08

Abstract: The present invention provides a method for reducing a wireless positioning error by a target node in a multi-node system. Specifically, the method comprises the steps of: receiving information on the positions of anchor nodes from the anchor nodes, respectively; performing ranging of each of the anchor nodes; and when the target node is in a first state, transmitting information on the position of the target node to neighboring nodes except for each of the anchor nodes. The target node is capable of communicating with at least one of another target node, a target node related to an autonomous driving vehicle, a base station or a network.

公开(公告)号：US11490284B2

公开(公告)日：2022-11-01

申请号：US17254842

申请日：2019-06-14

Applicant: LG ELECTRONICS INC.

Inventor： Sangrim Lee ,  Woonghee Lee

IPC: H04W24/10 ,  H04W4/029 ,  G01S5/10 ,  H04L5/00 ,  H04W4/02

Abstract: A method for reporting, by a terminal, a measurement result for location determination according to an embodiment of the present disclosure comprises the steps of: determining whether a channel characteristic between the terminal and each base station included in a plurality of base stations configured for location determination of the terminal corresponds to a visible ray (line of sight: LoS); calculating a reference signal time difference (RSTD) by configuring, as a reference cell, one of the base stations, the channel characteristics of which correspond to a visible ray (LoS); and reporting a measurement result including the RSTD.