公开(公告)号：US20190006748A1

公开(公告)日：2019-01-03

申请号：US16006113

申请日：2018-06-12

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Dong-Ho CHO ,  Yun-Sik KIM ,  Lakju SUNG ,  Sangmi NOH

IPC: H01Q1/52 ,  H01Q15/02 ,  H01Q21/24

Abstract: A lens antenna apparatus includes a plurality of antenna units and a lens structure configured to change a phase of an electromagnetic wave, emitted by at least one antenna unit among the plurality of antenna units. The lens structure changes the phase such that the overall outputs from the plurality of antenna units have different radiation patterns.

公开(公告)号：US20240380639A1

公开(公告)日：2024-11-14

申请号：US18691010

申请日：2021-09-14

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

Inventor： Jaehoon CHUNG ,  Seungwon KEUM ,  Sangmi NOH ,  Dangoh KIM ,  Juyong LEE ,  Dongho CHO

IPC: H04L25/02 ,  H04B17/309

Abstract: In a wireless communication system, a method for transmitting a transport block of a device and a device using the method are provided. The method is characterized by transmitting a transport block to another device, receiving measured channel information from the other device, and determining whether to retransmit the transport block, on the basis of a difference value between channel information estimated during transmission of the transport block and the measured channel information.

公开(公告)号：US20230299825A1

公开(公告)日：2023-09-21

申请号：US18013865

申请日：2020-07-09

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

Inventor： Sangmi NOH ,  Jaehoon CHUNG ,  Sangrim LEE ,  Seongjae KIM ,  Dangoh KIM ,  Seungwon KEUM ,  Juyong LEE ,  Dongho CHO

IPC: H04B7/06 ,  H01Q3/40

CPC classification number: H04B7/0617 ,  H01Q3/40

Abstract: According to an embodiment of the present disclosure, a beamforming method performed by a wireless device having an array antenna in a wireless communication system comprises the steps of: calculating a phase related to a target beamforming direction; determining antenna patterns related to the target beamforming direction from among antenna patterns preconfigured in relation to beamforming; and applying, to the array antenna, an antenna pattern based on the phase from among the antenna patterns related to the target beamforming direction. Each antenna included in the array antenna includes multiple feeding points and a variable reactance element connected to at least one feeding point among the multiple feeding points. The antenna pattern is related to at least one of i) a selection of at least one feeding point among the multiple feeding points and ii) a reactance value of the variable reactance element.

公开(公告)号：US20220014226A1

公开(公告)日：2022-01-13

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 ,  H01Q15/04 ,  H01P5/19

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.