公开(公告)号：US20230396422A1

公开(公告)日：2023-12-07

申请号：US18044865

申请日：2020-09-11

Applicant: LG Electronics Inc.

Inventor： JaYeong KIM ,  Hojae LEE ,  Byungkyu AHN ,  Byounghoon KIM ,  Sangrim LEE

IPC: H04L9/08 ,  H04B10/70 ,  G02B27/28

CPC classification number: H04L9/0852 ,  H04B10/70 ,  G02B27/28

Abstract: Provided is a method and device for correcting an error in a communication system, the method including: transmitting, to another device, data encrypted based on key information. The key information is obtained by: incident a detection pulse on a variable Faraday rotating mirror and a reference pulse on a first mirror, respectively, wherein the detection pulse and the reference pulse are pulses branched from a test pulse; generating a first current in a balanced photodetector (BPD) based on a first component obtained as the detection pulse is reflected from the variable Faraday rotating mirror and a second component obtained as the reference pulse is reflected from the first mirror; converting the first current into a second current; incident the second current on the variable Faraday rotating mirror; and correcting the error in the variable Faraday rotating mirror based on the incident second current.

公开(公告)号：US20230368584A1

公开(公告)日：2023-11-16

申请号：US18029886

申请日：2020-10-06

Applicant: LG ELECTRONICS INC.

Inventor： Ikjoo JUNG ,  Sangrim LEE ,  JaYeong KIM ,  Hojae LEE ,  Yeongjun KIM

IPC: G07C5/00 ,  H04W72/25 ,  B60W60/00

CPC classification number: G07C5/008 ,  H04W72/25 ,  B60W60/001

Abstract: A method for performing reinforcement learning by a V2X communication device in an autonomous driving system, specifically, a method for performing reinforcement learning in consideration of an application rate of a reward according to age in terms of the freshness of a reward for an action, is proposed. An agent transmits an action message and controls a reflection rate of a reward through AoI management for a reward message, so that rewards transmitted from a plurality of devices are suitably reflected in an environment of a reinforcement learning-based autonomous driving system, and an optimal policy can be found accordingly.

公开(公告)号：US20230283384A1

公开(公告)日：2023-09-07

申请号：US18003955

申请日：2020-07-02

Applicant: LG ELECTRONICS INC.

Inventor： Byungkyu AHN ,  Sangrim LEE ,  Hojae LEE ,  JaYeong KIM

IPC: H04B10/70

CPC classification number: H04B10/70

Abstract: The present specification provides a method and a device, the method, performed by a device, for transmitting a first pulse train in a quantum communication system being characterized by: receiving a random access (RA) preamble from another device; transmitting an RA response (RAR) to the other device as a response to the RA preamble; performing a radio resource control (RRC) connection process with the other device; receiving data from the other device; and decoding the data on the basis of key information, wherein a first pulse train is generated in a laser diode of the device, and the key information is determined on the basis that the first pulse train passes through both a first path and a second path and is then transmitted from the device to the other device via a quantum channel.

公开(公告)号：US20170142630A1

公开(公告)日：2017-05-18

申请号：US15317092

申请日：2015-06-08

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

Inventor： Yunjung YI ,  Hansung LEEM ,  Dan Keun SUNG ,  JaYeong KIM ,  Byounghoon KIM

IPC: H04W36/30 ,  H04W36/04 ,  H04W36/08

CPC classification number: H04W36/30 ,  H04B7/024 ,  H04W36/0055 ,  H04W36/04 ,  H04W36/08 ,  H04W36/34

Abstract: The present specification suggests a method for improving performance degradation caused by frequent handovers when a terminal moves among several cells, particularly among dense small cells. To this end, required are cooperative transmission among cells and a new handover method. A base station receives RSRP information about an anchor cell and a neighboring cell and configures a cooperation-based cell cluster using the RSRP information. If RSRP values are compared and meet specific conditions, the anchor cell and the neighboring cell carry out cooperative communication. If the RSRP values of the anchor cell and an anchor candidate cell are compared during the cooperative communication and meet specific conditions, handover from the anchor cell to the anchor candidate cell is carried out. If the present invention is applied, when the terminal moves in an environment where small cells are dense, the number of handovers is greatly reduced and thus network burden can be lessened.