公开(公告)号：US20230275729A1

公开(公告)日：2023-08-31

申请号：US18014667

申请日：2020-07-10

Applicant: LG ELECTRONICS INC. ,  Korea Advanced Institute of Science and Technology

Inventor： Seungwon Keum ,  Jaehoon Chung ,  Sangrim Lee ,  Dongho Cho ,  Juyong Lee ,  Sangmi Noh ,  Dangoh Kim ,  Seongjae Kim

IPC: H04L5/00 ,  H04W74/08 ,  H04L27/26

CPC classification number: H04L5/0051 ,  H04W74/0833 ,  H04L27/261 ,  H04L27/2605

Abstract: A method for estimating a phase noise by a wireless device in a wireless communication system according to an embodiment of the present disclosure comprises the steps of: receiving a pre-configured pilot signal and a phase tracking reference signal (PTRS); calculating a first phase noise on the basis of the pre-configured pilot signal; calculating a common phase error (CPE) on the basis of the phase tracking reference signal (PTRS); and estimating a phase noise (PN) on the basis of the first phase noise and the common phase error (CPE). The PN is estimated through interpolation based on a specific reference point, and the specific reference point is based on the first phase noise and the CPE.

公开(公告)号：US10347994B2

公开(公告)日：2019-07-09

申请号：US15110921

申请日：2015-01-23

Applicant: Korea Advanced Institute of Science and Technology

Inventor： Dongho Cho ,  Changbae Yoon ,  Daehee Park ,  Ju Yong Lee ,  Gye-Tae Gil

IPC: H01Q3/24 ,  H01Q3/26 ,  H01Q9/04 ,  H01Q13/08 ,  H01Q13/10 ,  H01Q21/06 ,  H01Q21/08 ,  H01Q21/24 ,  H01Q25/00

Abstract: In an N-port pattern/polarized antenna device, two-type antenna elements are configured to have a radiation pattern to use a spherical vector wave mode with at least N orders, the antenna elements being arranged at intervals not larger than a half wavelength between them. The antenna elements comprise electric field antennas with a radiation pattern distributed in an even mode among the spherical vector wave mode, and magnetic field antennas with a radiation pattern distributed in an odd mode, the electric field antennas and the magnetic field antennas being integrated to face a different direction, each other.

公开(公告)号：US11115136B1

公开(公告)日：2021-09-07

申请号：US16926539

申请日：2020-07-10

Applicant: LG ELECTRONICS INC. ,  KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Seongjae Kim ,  Jaehoon Chung ,  Sangrim Lee ,  Dongho Cho ,  Juyong Lee ,  Seungwon Keum ,  Dangoh Kim ,  Sangmi Noh

IPC: H04B17/12 ,  H04B17/13 ,  H04B7/0452 ,  H01Q21/06 ,  H01Q3/26

Abstract: A method of calibrating an array antenna in a wireless communication system includes a first step of transmitting a radio signal through a first antenna and a second antenna determined among a plurality of antennas included in the array antenna, a second step of measuring the radio signal through a specific coupling antenna of a plurality of coupling antennas adjacent to the plurality of antennas, a third step of estimating an error of the second antenna based on a result of the measurement of the radio signal, and a fourth step of calibrating the second antenna based on the error.

公开(公告)号：US11469787B2

公开(公告)日：2022-10-11

申请号：US16925294

申请日：2020-07-09

Applicant: LG ELECTRONICS INC. ,  KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Dangoh Kim ,  Jaehoon Chung ,  Sangrim Lee ,  Dongho Cho ,  Juyong Lee ,  Seungwon Keum ,  Seongjae Kim ,  Sangmi Noh

IPC: H04B1/40 ,  H01P5/19 ,  H01Q15/04

Abstract: A divider for dividing a radio signal includes an input port, a plurality of output ports and a cavity having one surface coupled to the input port and other surface coupled to the plurality of output ports. The other surface is formed as a curved surface, and the plurality of output ports is disposed on the other surface at certain intervals. The side of the cavity is slantly formed from the one surface to the other surface at a certain angle. The distances between the input port and the plurality of output ports is the same.

公开(公告)号：US20160359240A1

公开(公告)日：2016-12-08

申请号：US15110921

申请日：2015-01-23

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Dongho Cho ,  Changbae Yoon ,  Daehee Park ,  Ju Yong Lee ,  Gye-Tae Gil

IPC: H01Q25/00 ,  H01Q13/08 ,  H01Q3/24

CPC classification number: H01Q25/002 ,  H01Q3/24 ,  H01Q3/26 ,  H01Q9/0407 ,  H01Q13/08 ,  H01Q13/10 ,  H01Q21/061 ,  H01Q21/08 ,  H01Q21/24

Abstract: In an N-port pattern/polarized antenna device, two-type antenna elements are configured to have a radiation pattern to use a spherical vector wave mode with at least N orders, the antenna elements being arranged at intervals not larger than a half wavelength between them. The antenna elements comprise electric field antennas with a radiation pattern distributed in an even mode among the spherical vector wave mode, and magnetic field antennas with a radiation pattern distributed in an odd mode, the electric field antennas and the magnetic field antennas being integrated to face a different direction, each other.

Abstract translation: 在N端口图案/极化天线装置中，两型天线元件被配置为具有使用至少N阶的球面矢量波模式的辐射图，天线元件以不大于第二波长的间隔 他们。 天线元件包括在球面矢量波模式中以均匀模式分布的辐射图案的电场天线以及以奇数模式分布的辐射图案的磁场天线，电场天线和磁场天线被集成到面 不同的方向，彼此。