公开(公告)号：US20250038846A1

公开(公告)日：2025-01-30

申请号：US18715054

申请日：2022-11-29

Applicant: LG ELECTRONICS INC.

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

IPC: H04B10/079 ,  H04B10/70 ,  H04L9/08

Abstract: The present disclosure relates to a quantum communication system. Particularly, the present disclosure relates to a device and a method for performing two-step quantum secure direct communication (QSDC) with a reduced complexity without measuring a quantum memory and a bell state of a receiver in a quantum communication system.

公开(公告)号：US20210153176A1

公开(公告)日：2021-05-20

申请号：US17098206

申请日：2020-11-13

Applicant: LG ELECTRONICS INC.

Inventor： Youngdae LEE ,  JaYeong KIM ,  Giwon PARK ,  Jongyoul LEE

IPC: H04W72/04 ,  H04W72/10 ,  H04W4/40 ,  H04W72/14

Abstract: A method and apparatus for confirmation of multiple configured grants for sidelink in a wireless communication system is provided. A wireless device receives activation command or deactivation command on Physical Downlink Control Channel (PDCCH) for at least one of the multiple configured grants. A wireless device receives transmits, to the network, a confirmation Media Access Control (MAC) Control Element (CE). The confirmation MAC CE includes one or more fields in a bit group of which size is equal to number of the multiple configured grants. Each field in the bit group is set to (i) zero to indicate deactivation for each of the multiple configured grants or (ii) 1 to indicate activation for each of the multiple configured grants. Each field in the confirmation MAC CE except the bit group is ignored.

公开(公告)号：US20180199290A1

公开(公告)日：2018-07-12

申请号：US15741169

申请日：2016-07-04

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

Inventor： Inkyu BANG ,  JaYeong KIM ,  Dan Keun SUNG ,  Yunjung YI ,  Kijun KIM

IPC: H04W52/02 ,  H04W76/28 ,  H04W72/12

CPC classification number: H04W52/0245 ,  H04W24/02 ,  H04W24/08 ,  H04W36/00 ,  H04W52/02 ,  H04W52/0277 ,  H04W72/1231 ,  H04W76/28 ,  Y02D70/122 ,  Y02D70/1224 ,  Y02D70/1226 ,  Y02D70/1242 ,  Y02D70/126 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/14 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/23 ,  Y02D70/24

Abstract: Provided are a method by which a terminal selectively performs an operation on the basis of a terminal operation mode in a wireless communication system, and a device for supporting the method. The terminal determines a terminal group to which the terminal belongs, on the basis of a battery residual quantity and a battery residual quantity threshold value, calculates channel quality on the basis of a downlink reference signal, determines a terminal operation mode on the basis of the determined terminal group, the calculated channel quality, and the channel quality threshold value, and performs an operation on the basis of the determined terminal operation mode, wherein the terminal group can be any one of an energy insufficient group (EIG) and an energy sufficient group (ESG).

公开(公告)号：US20240039641A1

公开(公告)日：2024-02-01

申请号：US18014052

申请日：2020-07-02

Applicant: LG ELECTRONICS INC.

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

IPC: H04B10/70 ,  H04B10/077 ,  H04L9/08

CPC classification number: H04B10/70 ,  H04B10/077 ,  H04L9/0852

Abstract: Provided are a device and a method performed by the device to correct an error in a quantum communication system. The method is characterized by comprising: transmitting a random access (RA) preamble to another device; receiving a random access response (RAR) from the other device as a response to the RA preamble; performing a radio resource control (RRC) connection procedure with the other device; and transmitting data to the other device, wherein the data is encoded on the basis of key information, the error is measured on the basis of a test pulse, and the key information is distributed to the device and the other device on the basis of the error being corrected using an improved Faraday rotator mirror of the device.

公开(公告)号：US20240031786A1

公开(公告)日：2024-01-25

申请号：US18025977

申请日：2020-09-15

Applicant: LG ELECTRONICS INC.

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

IPC: H04W4/40 ,  H04W56/00

CPC classification number: H04W4/40 ,  H04W56/001

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 a reward application ratio over time, is proposed. Action information is transmitted to a second V2X communication device, reward information is received from the second V2X communication device, and reinforcement learning is performed on the basis of a reward, wherein a reward corresponding to a ratio determined by a first V2X communication device is applied to the reinforcement learning, the ratio is determined on the basis of a time interval from a time point of transmission of the action information to a time point of reception of the reward information, and the ratio is between 0 and 1, both inclusive.

公开(公告)号：US20230353247A1

公开(公告)日：2023-11-02

申请号：US18025767

申请日：2020-09-16

Applicant: LG ELECTRONICS INC.

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

IPC: H04B10/50 ,  H04B10/548 ,  H04B10/564

CPC classification number: H04B10/504 ,  H04B10/548 ,  H04B10/564

Abstract: The present specification provides a method, performed by an apparatus, for transmitting at least one beam in a wireless communication system, the method comprising transmitting the at least one beam to another apparatus and receiving information about a result of measuring the at least one beam from the other apparatus, wherein the at least one beam is a beam generated on the basis of a signal synthesized from a laser signal being incident on a meta surface from a power controller, the laser signal consists of a plurality of frequency components, the synthesized signal is a signal in which power amplification is applied to each of the plurality of frequency components, and the power amplification is applied on the basis of the intensity regarding each of the plurality of frequency components.

公开(公告)号：US20230299950A1

公开(公告)日：2023-09-21

申请号：US18023281

申请日：2020-08-24

Applicant: LG ELECTRONICS INC.

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

IPC: H04L9/08 ,  H04L1/20 ,  H03M13/11 ,  G06N3/084

CPC classification number: H04L9/0852 ,  H04L1/203 ,  H03M13/11 ,  G06N3/084

Abstract: The present specification provides a method for estimating a quantum bit error rate (QBER) for key information, performed by a device in a quantum cryptography communication system, the method and device being characterized by: receiving a random access (RA) preamble from another device; transmitting a random access response (RAR) to the other device, in 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 the key information, wherein the key information is determined on the basis of estimation of the QBER, and the device estimates the QBER on the basis of first two-dimensional parity information received from the other device through a public channel.

公开(公告)号：US20170181122A1

公开(公告)日：2017-06-22

申请号：US15129362

申请日：2015-03-27

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

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

IPC: H04W68/02 ,  H04W8/02

CPC classification number: H04W68/02 ,  H04W8/02 ,  H04W16/32 ,  H04W68/00 ,  H04W84/045 ,  H04W88/12

Abstract: The present specification suggests a method and an apparatus for more efficient mobility management through a hierarchical structure of a micro mobility management entity (MME) and a macro MME in a mobile communication system. Particularly, a second MME establishes a connection with a plurality of small cells included in a single macro cell. The second MME manages a single particular macro cell, and a first MME manages a plurality of macro cells, thereby providing a hierarchical structure. Additionally, the second MME transmits a paging message to a small cell in which a terminal is positioned, among the plurality of small cells included in a single macro cell. The second MME has information on the position of the terminal and can transmit the paging message to a particular small cell in which the terminal is positioned.

公开(公告)号：US20170181051A1

公开(公告)日：2017-06-22

申请号：US15530194

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 ,  H04W24/10 ,  H04W36/38

CPC classification number: H04W36/30 ,  H04B7/024 ,  H04W24/10 ,  H04W36/0083 ,  H04W36/00835 ,  H04W36/32 ,  H04W36/38 ,  H04W84/045

Abstract: The present specification suggests a method for establishing a terminal-centric group cell on the basis of measurement signal variation for cooperative transmission and handover in a mobile communication system. Specifically, a base station receives transmissions of parameters from a terminal, configures a terminal surrounding cell information table, and configures a cooperative cell cluster configuration table using the terminal surrounding cell information table as the terminal moves. The base station performs cooperative transmission and handover using the cooperative cell cluster configuration table. The terminal sends parameters to the base station periodically or when a certain condition is met, and the base station updates the terminal surrounding cell information table and the cooperative cell cluster configuration table using the parameters sent from the terminal to thereby use the same for mobility management.

公开(公告)号：US20250015890A1

公开(公告)日：2025-01-09

申请号：US18695712

申请日：2022-10-04

Applicant: LG Electronics Inc.

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

IPC: H04B10/112 ,  G02B27/28 ,  G03B21/20

Abstract: A method and a device used in an optical wireless communication (OWC) system are provided. A transmitting terminal transmits a plurality of reference signals to a receiving terminal through each of a plurality of beams. Each of the plurality of beams may have an inhomogeneous polarization beam pattern. The receiving terminal measures signal strength and polarization with respect to the plurality of reference signals. When the receiving terminal transmits feedback information including the measured signal strength information and polarization information to the transmitting terminal, the transmitting terminal may select at least one beam among the plurality of beams on the basis of the feedback information. Alternatively, the receiving terminal may select at least one beam from among the plurality of beams, which corresponds to at least one inhomogeneous polarization beam pattern among a plurality of inhomogeneous polarization beam patterns, on the basis of the measured signal strength and polarization.