公开(公告)号：US11122455B2

公开(公告)日：2021-09-14

申请号：US16489192

申请日：2018-02-26

Applicant: LG Electronics Inc.

Inventor： Sangrim Lee ,  Myeongjin Kim ,  Hojae Lee ,  Minki Ahn

IPC: H04W24/10 ,  H04J4/00 ,  H04L12/26

Abstract: A method for measuring and reporting, by a terminal, a positioning reference signal (PRS) in a wireless communication system according to one embodiment of the present invention comprises the steps of: measuring a plurality of positioning reference signals (PRSs) to which beamforming is applied; and reporting, to a base station, measurement results for at least two of the plurality of PRSs, wherein the plurality of PRSs are received via different transmission beams, and the terminal may report, to the base station, at least one from among transmission beam identification information indicating through which transmission beam each of the at least two PRSs has been received and resource identification information indicating through which resource each of the at least two PRSs has been received, together with the measurement results. The terminal is capable of communicating with at least one of another terminal, a terminal related to an autonomous driving vehicle, a base station or a network.

公开(公告)号：US11057177B2

公开(公告)日：2021-07-06

申请号：US16499740

申请日：2018-03-30

Applicant: LG Electronics Inc.

Inventor： Kyuseok Kim ,  Jiwon Kang ,  Kijun Kim ,  Hyungtae Kim ,  Minki Ahn ,  Sukhyon Yoon ,  Kilborn Lee

IPC: H04L5/00

Abstract: Disclosed herein are a method and apparatus for performing, by UE, decoding in a wireless communication system. According to the present invention, there may be a method and an apparatus for decoding data in which a demodulation reference signal (DMRS) configured by a base station according to a specific pattern is received from the base station through a DMRS symbol, the demodulation reference signal is transmitted on a specific antenna port and located on the same one or two time-axis symbols as at least one other demodulation reference signal transmitted on another antenna port, the specific pattern is determined according to characteristics of a frequency band in which the demodulation reference signal is transmitted, the demodulation reference signal is mapped to the one or two time-axis symbols using at least one of a first code division multiplexing (CDM) on a frequency axis or a second CDM on a time axis, and the data are decoded using the demodulation reference signal.

公开(公告)号：US11050480B2

公开(公告)日：2021-06-29

申请号：US16339871

申请日：2016-10-06

Applicant: LG ELECTRONICS INC.

Inventor： Kukheon Choi ,  Ilmu Byun ,  Kilborn Lee ,  Kyuseok Kim ,  Minki Ahn

IPC: H04L1/02 ,  H04L7/00 ,  H04B7/06 ,  H04W76/11 ,  H04L5/00 ,  H04W72/02 ,  H04W72/04

Abstract: A method for transmitting, by a terminal, an SRS in a wireless communication system comprises the steps of: receiving, from a base station, control information including SRS resource pool information for tracking a transmission beam of the terminal; and transmitting the SRS to the base station on the basis of the control information, wherein the SRS is an SRS used for tracking the transmission beam of the terminal.

公开(公告)号：US10911195B2

公开(公告)日：2021-02-02

申请号：US16065724

申请日：2018-01-08

Applicant: LG Electronics Inc.

Inventor： Jonghyun Park ,  Kijun Kim ,  Jiwon Kang ,  Haewook Park ,  Minki Ahn ,  Sangrim Lee

IPC: H04W4/00 ,  H04L5/00 ,  H04B7/0456 ,  H04W72/04 ,  H04W16/28 ,  H04B7/00

Abstract: Disclosed is a method for uplink transmission and reception in a wireless communication system and an apparatus therefor. Particularly, a method for performing uplink transmission by a user equipment (UE) in a wireless communication system includes: receiving sounding reference signal (SRS) resource configuration information form a base station, in which the SRS resource configuration information includes SRS resource information and association configuration information between a first SRS and a second SRS that is a target of the SRS resource configuration information; and transmitting precoded the second SRS to the base station on an SRS resource indicated by the SRS resource information, and the second SRS may be transmitted based on the precoding applied to the first SRS indicated by the association configuration information.

公开(公告)号：US10735169B2

公开(公告)日：2020-08-04

申请号：US16064340

申请日：2017-02-08

Applicant: LG ELECTRONICS INC.

Inventor： Kyuseok Kim ,  Kilbom Lee ,  Jaehoon Chung ,  Minki Ahn

IPC: H04L5/00 ,  H04W72/04

Abstract: A method for transmitting and receiving, by a user equipment (UE), a phase noise compensation reference signal (PCRS) in a wireless communication system is disclosed. The method includes receiving, from a base station, control information related to a transmission of a downlink data, the control information including at least one of a precoding scheme related to the downlink data, a number of transmission ranks, or a modulation and coding scheme (MCS) level; checking a transmission location of a demodulation reference signal (DM-RS) for demodulating the downlink data based on the received control information; and receiving, from the base station, the PCRS on at least one symbol after a transmission symbol of the DM-RS considering the checked transmission location of the DM-RS.

公开(公告)号：US10728003B2

公开(公告)日：2020-07-28

申请号：US16273705

申请日：2019-02-12

Applicant: LG ELECTRONICS INC.

Inventor： Kyuseok Kim ,  Kilbom Lee ,  Jaehoon Chung ,  Minki Ahn

IPC: H04L5/00 ,  H04W72/04

Abstract: A method of transmitting, by a terminal, a phase noise compensation reference signal in a wireless communication system is discussed. The method includes determining a frequency resource and a time resource of a demodulation reference signal (DM-RS); mapping the phase noise compensation reference signal to a frequency resource and a time resource based on the determined frequency resource and the time resource of the DM-RS; and transmitting, to a base station, the phase noise compensation reference signal on the mapped frequency resource and the time resource of the phase compensation reference signal. Further, a location of a phase noise compensation reference signal symbol in the time resource is determined based on a location of a DM-RS symbol in the time resource of the DM-RS.

公开(公告)号：US10411348B2

公开(公告)日：2019-09-10

申请号：US15868953

申请日：2018-01-11

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

Inventor： Jinseok Park ,  Song-Cheoll Hong ,  Seung Hoon Kang ,  Jaehoon Chung ,  Minki Ahn

IPC: H03D7/14 ,  H03D7/16 ,  H01Q3/34 ,  H01P1/18 ,  H03H11/20 ,  H04B1/04 ,  H01Q3/00

Abstract: Provided is a phase shifting device including a first balun outputting first and second differential input signals, an I/Q generator outputting first to fourth phase signals based on the first and second differential input signals, a control circuit outputting a first control signal, a second control signal, a plurality of in-phase select signals, and a plurality of quadrature select signals, a current source circuit including a first source transistor outputting an in-phase current according to the first control signal and a second source outputting a quadrature current according to the second control signal, a vector sum circuit outputting first and second differential output signals based on the first to fourth phase signals according to the plurality of in-phase select signals and the plurality of quadrature select signals and including a plurality of sub-vector sum circuits, and a second balun outputting an output signal.

公开(公告)号：US11750266B2

公开(公告)日：2023-09-05

申请号：US17988525

申请日：2022-11-16

Applicant: LG ELECTRONICS INC.

Inventor： Jiwon Kang ,  Minki Ahn ,  Kilbom Lee

IPC: H04B7/06 ,  H04L5/00 ,  H04W72/044 ,  H04W74/08 ,  H04W72/21

CPC classification number: H04B7/0695 ,  H04L5/0048 ,  H04W72/046 ,  H04W72/21 ,  H04W74/0833

Abstract: Provided is a beam recovery method in a wireless communication system. A beam recovery method performed by a user terminal (UE) may include receiving a beam reference signal (BRS) used for beam management from an enhanced Node B (eNB), when a beam failure event is detected, transmitting a control signal for a beam failure recovery request to the eNB; and, when beam reporting is triggered, reporting a beam measurement result to the eNB in a specific resource.

公开(公告)号：US11689260B2

公开(公告)日：2023-06-27

申请号：US17955141

申请日：2022-09-28

Applicant: LG ELECTRONICS INC.

Inventor： Haewook Park ,  Kijun Kim ,  Minki Ahn

IPC: H04B7/0456 ,  H04B7/06 ,  H04L1/16 ,  H04W72/12 ,  H04B7/0417 ,  H04L1/1607 ,  H04L25/03 ,  H04W40/06

CPC classification number: H04B7/0473 ,  H04B7/0417 ,  H04B7/0456 ,  H04B7/0486 ,  H04B7/0626 ,  H04B7/0663 ,  H04L1/1614 ,  H04L25/03923 ,  H04W40/06 ,  H04W72/1226

Abstract: A method for transmitting channel state information performed by a User Equipment (UE) may include receiving, from a base station, a bitmap for configuring codebook subset restriction (CSR) and reporting, to the base station, Channel State Information (CSI), when a number of antenna ports is configured as 16 or more and a number of layers associated with a rank indicator (RI) in the CSI is 3 or 4, a unit of multiple bits in a bitmap for configuring the CSR is associated with each precoder, and a reporting of precoding matrix indicator (PMI) corresponding to the precoder associated with the multiple bits is restricted in the CSI, when the CSR is indicated in any one of the multiple bits, and each bit in the bitmap for configuring the CSR is associated with each precoder.

公开(公告)号：US11677526B2

公开(公告)日：2023-06-13

申请号：US17343247

申请日：2021-06-09

Applicant: LG ELECTRONICS INC.

Inventor： Kyuseok Kim ,  Jiwon Kang ,  Kijun Kim ,  Hyungtae Kim ,  Minki Ahn ,  Sukhyon Yoon ,  Kilbom Lee

IPC: H04L5/00

CPC classification number: H04L5/0048 ,  H04L5/0007

Abstract: Disclosed herein are a method and apparatus for performing, by UE, decoding in a wireless communication system. According to the present invention, there may be a method and an apparatus for decoding data in which a demodulation reference signal (DMRS) configured by a base station according to a specific pattern is received from the base station through a DMRS symbol, the demodulation reference signal is transmitted on a specific antenna port and located on the same one or two time-axis symbols as at least one other demodulation reference signal transmitted on another antenna port, the specific pattern is determined according to characteristics of a frequency band in which the demodulation reference signal is transmitted, the demodulation reference signal is mapped to the one or two time-axis symbols using at least one of a first code division multiplexing (CDM) on a frequency axis or a second CDM on a time axis, and the data are decoded using the demodulation reference signal.