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    Frequency gradient metasurface-based fast beam steering transmission method and apparatus for OWC
    11.
    发明授权
    Frequency gradient metasurface-based fast beam steering transmission method and apparatus for OWC 有权

    公开(公告)号：US12166530B2

    公开(公告)日：2024-12-10

    申请号：US17928146

    申请日：2020-05-28

    Applicant: LG ELECTRONICS INC.

    Inventor： Hojae Lee ,  Sangrim Lee ,  Kijun Jeon

    IPC: H04B10/508 ,  H04B10/11 ,  H04B10/50

    Abstract: The present specification provides a method and apparatus, the method being for transmitting a beam, performed by the apparatus, in an optical wireless communication system, and comprising: generating a pulse laser signal; making the pulse laser signal to be incident on a metasurface, wherein the beam is generated on the basis that the pulse laser signal is incident on the metasurface; and transmitting the beam to a reception apparatus, wherein the metasurface is determined on the basis of ω_0, d, Δω, and N, wherein ω_0 is a value of a center frequency, d is a value of a virtual antenna interval, Δω is a value of a frequency comb interval, and N is a value related to the number of frequency combs present within a gain bandwidth based on the center frequency.

    Apparatus and method for transmitting and receiving signals in wireless optical communication system
    12.
    发明授权
    Apparatus and method for transmitting and receiving signals in wireless optical communication system 有权

    公开(公告)号：US12081277B2

    公开(公告)日：2024-09-03

    申请号：US17920712

    申请日：2020-07-14

    Applicant: LG ELECTRONICS INC.

    Inventor： Hojae Lee ,  Sangrim Lee ,  Kijun Jeon

    IPC: H04B10/11 ,  H04B10/67 ,  H04B10/69 ,  H04W72/23

    CPC classification number: H04B10/6972 ,  H04B10/67 ,  H04W72/23

    Abstract: According to one embodiment of the present invention, an apparatus and method for transmitting and receiving signals in a wireless communication system comprise receiving an optical signal including an interference signal and a target signal, attenuating the interference signal, and converting the optical signal in which the interference signal is attenuated, into electric signals via a photodiode array, wherein a transceiver comprises a first optical filter upon which the optical signal is incident, and a second optical filter upon which the optical signal having passed through the first optical filter is incident, wherein the interference signal may be attenuated through the first optical filter and the second optical filter.

    Method for decoding codeword in wireless communication system and terminal therefor
    13.
    发明授权
    Method for decoding codeword in wireless communication system and terminal therefor 有权

    公开(公告)号：US11831437B2

    公开(公告)日：2023-11-28

    申请号：US17619408

    申请日：2019-07-03

    Applicant: LG ELECTRONICS INC.

    Inventor： Sangrim Lee ,  Byounghoon Kim ,  Kijun Jeon

    IPC: H04L1/18

    CPC classification number: H04L1/18

    Abstract: Disclosed is a method by which a terminal decodes a codeword in a wireless communication system. Specifically, the method may comprise: receiving a plurality of codewords; and decoding the plurality codewords on the basis of successive interference cancellation (SIC). In particular, the SIC may be performed on the basis of a decoding policy for decoding the plurality of codewords. In particular, the decoding policy may be determined by a neural network trained on the basis of a state and a reward related to the plurality of codewords.

    TRANSMISSION/RECEPTION METHOD IN 1-BIT QUANTIZATION SYSTEM, AND DEVICE THEREFOR
    14.
    发明申请
    TRANSMISSION/RECEPTION METHOD IN 1-BIT QUANTIZATION SYSTEM, AND DEVICE THEREFOR 有权

    公开(公告)号：US20220376954A1

    公开(公告)日：2022-11-24

    申请号：US17624199

    申请日：2019-07-03

    Applicant: LG ELECTRONICS INC.

    Inventor： Sangrim Lee ,  Hojae Lee ,  Kijun Jeon

    IPC: H04L25/02 ,  H04B17/309 ,  H04L1/00 ,  H04L1/20 ,  H04L25/06 ,  H04L25/49

    Abstract: The present disclosure provides a method for transmitting and receiving in a wireless communication system and an apparatus therefore. Specifically, in a wireless communication system according to an embodiment of the present disclosure, there is provided a method for transmitting and receiving a signal by a receiving apparatus, the method includes receiving, from a transmitting apparatus, signals modulated based on a differential phase shift keying (DPSK) method through a plurality of reception paths, calculating a differential value in each reception path of the plurality of reception paths based on the received signals, and calculating reliability for the received signals, in which the reliability is proportional to a real value of a sum of the differential values in each reception path of the plurality of reception paths.

    Method and device for adapting learning class-based system to AI MIMO
    16.
    发明授权
    Method and device for adapting learning class-based system to AI MIMO 有权

    公开(公告)号：US12176985B2

    公开(公告)日：2024-12-24

    申请号：US18265109

    申请日：2020-12-04

    Applicant: LG Electronics Inc.

    Inventor： Hojae Lee ,  Sangrim Lee ,  Kyungho Lee ,  Yeongjun Kim ,  Kijun Jeon ,  Sungjin Kim

    IPC: H04B7/06 ,  H04B17/391

    Abstract: The present specification provides a method fir transmitting learning class information, the method being performed by a terminal in a wireless communication system and comprising the steps of: transmitting a random access (RA) preamble to a base station; receiving a random access response (RAR) from the base station in response to the RA preamble; performing a radio resource control (RRC) connection procedure with the base station; determining the learning class information, wherein the learning class information is information about the degree of performance improvement in online learning, and the online learning is artificial intelligence (AI) algorithm-based learning following the activation of the wireless communication system; transmitting the learning class information to the base station; and performing channel state information (CSI) feedback according to the learning class information.

    COMMUNICATION METHOD AND SERVER FOR DISTRIBUTED LEARNING BY WHICH SERVER DERIVES FINAL LEARNING RESULTS ON BASIS OF LEARNING RESULTS OF PLURALITY OF DEVICES
    20.
    发明公开
    COMMUNICATION METHOD AND SERVER FOR DISTRIBUTED LEARNING BY WHICH SERVER DERIVES FINAL LEARNING RESULTS ON BASIS OF LEARNING RESULTS OF PLURALITY OF DEVICES 审中-公开

    公开(公告)号：US20230325634A1

    公开(公告)日：2023-10-12

    申请号：US18024635

    申请日：2020-09-03

    Applicant: LG ELECTRONICS INC.

    Inventor： Kijun Jeon ,  Sangrim Lee ,  Hojae Lee ,  Yeongjun Kim ,  Taehyun Lee

    IPC: G06N3/045

    CPC classification number: G06N3/045

    Abstract: Disclosed is a communication method for distributed learning by which a server derives a final learning result on the basis of learning results of a plurality of devices. A communication method for distributed learning, according to the present disclosure, comprises steps in which: a server receives position information about each of a plurality of devices; the server configures, on the basis of the position information, a primary group including at least two primary devices from among the plurality of devices; the server configures, on the basis of channel state information, a secondary group including at least one secondary device from among the primary devices; and secondary devices belonging to different secondary groups use different time slots or different frequency regions to communicate with the server by a non-orthogonal scheme. A terminal of the present disclosure may be linked to an artificial intelligence module, a drone (unmanned aerial vehicle (UAV)), a robot, an augmented reality (AR) device, a virtual reality (VR) device, a device related to a 6G service, and the like.

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