公开(公告)号：US11153900B2

公开(公告)日：2021-10-19

申请号：US16099954

申请日：2018-07-10

Applicant: LG Electronics Inc.

Inventor： Kyuseok Kim ,  Hyungtae Kim ,  Haewook Park ,  Jiwon Kang ,  Kijun Kim ,  Jonghyun Park ,  Kilbom Lee

IPC: H04W72/12 ,  H04L5/00

Abstract: Disclosed is a method and apparatus for transmitting and receiving a Reference Signal (RS) performed by a User Equipment (UE) in a wireless communication system. According to the present invention, a method and apparatus includes receiving a first Dedicated Demodulation Reference Signal and a first Physical Downlink Shared Channel (PDSCH); receiving a Physical Downlink Control Channel (PDCCH) including Downlink Control Information (DCI) in relation to a configuration of the second Dedicated Demodulation Reference Signal based on the first PDSCH; and receiving the second Dedicated Demodulation Reference Signal and a second PDSCH based on the PDCCH, and the first Dedicated Demodulation Reference Signal is transmitted only on a single antenna port, and a configuration of the DCI is determined based on the maximum number of symbols to which the second Dedicated Demodulation Reference Signal is mapped.

公开(公告)号：US11063716B2

公开(公告)日：2021-07-13

申请号：US16319266

申请日：2018-08-08

Applicant: LG ELECTRONICS INC.

Inventor： Hyungtae Kim ,  Jiwon Kang ,  Kijun Kim ,  Hyunsoo Ko ,  Kyuseok Kim

IPC: H04L5/00 ,  H04W72/04

Abstract: A method for transmitting and receiving a Reference Signal in a wireless communication system performed by a UE is disclosed. According to the present invention, a UE receives, from a base station, Downlink Control Information and receives a Demodulation Reference Signal (DMRS) through a plurality of antenna ports based on the Downlink Control Information and downlink data.
The UE demodulates the downlink data based on the DMRS, and the downlink data is received in a same symbol as the DMRS or in different symbols with each other based on a number of symbols related to the downlink data.

公开(公告)号：US11031976B2

公开(公告)日：2021-06-08

申请号：US16719562

申请日：2019-12-18

Applicant: LG ELECTRONICS INC.

Inventor： Hyungtae Kim ,  Kijun Kim ,  Jonghyun Park ,  Haewook Park

IPC: H04B7/0417 ,  H04L5/00 ,  H04B7/0456 ,  H04B7/06

Abstract: The present invention provides a method for reporting channel status information (CSI) for downlink transmission to an eNode B (eNB) by a user equipment (UE) in a wireless communication system. Specifically, the method comprises the steps of: receiving a channel status information-reference signal (CSI-RS) from the eNB; calculating the CSI on the basis of the CSI-RS under the assumption that a dual-precoder including a first precoder and a second precoder is applied; and reporting the CSI to the eNB, wherein the step of calculating the CSI includes a step for assuming that at least one of the first precoder and the second precoder is cyclically employed from a predetermined precoder candidate set on the basis of a predetermined resource unit; and information associated with the at least one precoder and information associated with the predetermined precoder candidate set are provided from the eNB through radio resource control (RRC) layer signaling.

公开(公告)号：US11012182B2

公开(公告)日：2021-05-18

申请号：US16500471

申请日：2018-04-26

Applicant: LG Electronics Inc.

Inventor： Hyungtae Kim ,  Jiwon Kang ,  Jonghyun Park

IPC: H04L1/00 ,  H04B17/24 ,  H04B17/336 ,  H04L5/00 ,  H04W24/10

Abstract: The present application discloses a method for reporting, by a terminal, channel status information (CSI) to a base station in a wireless communication system. Specifically, the method comprises the steps of: receiving a plurality of non-zero power (NZP) CSI-reference signals (CSI-RSs) from the base station; selecting one NZP CSI-RS on the basis of power received from the plurality of NZP CSI-RSs; measuring interference by removing the selected NZP CSI-RS from a channel determined using the selected NZP CSI-RS; and reporting, to the base station, the CSI including an indicator indicating the selected NZP CSI-RS and information related to the measured interference.

公开(公告)号：US11012134B2

公开(公告)日：2021-05-18

申请号：US16597492

申请日：2019-10-09

Applicant: LG Electronics Inc.

Inventor： Hyungtae Kim ,  Jiwon Kang

IPC: H04B7/06 ,  H04L1/00 ,  H04B7/0456 ,  H04W24/10 ,  H04W72/04 ,  H04W72/12

Abstract: A method of reporting, by a user equipment (UE), channel state information (CSI) in a wireless communication system, includes: receiving, by the UE and from a base station (BS), downlink control information (DCI) related to an aperiodic CSI report that is to be performed by the UE in a slot n; determining, by the UE, a value nCQI_ref based on a number of symbols Z′ related to a time for computing the CSI; determining, by the UE, a CSI reference resource as being a slot n−nCQI_ref in a time domain that is to be used for the aperiodic CSI report; and transmitting, by the UE and to the BS, the aperiodic CSI report in the slot n, based on the CSI reference resource being slot n−nCQI_ref. The CSI may be calculated by using the most recent A CSI-RS, and thereby the most recent CSI may be reported.

公开(公告)号：US10924319B2

公开(公告)日：2021-02-16

申请号：US16339893

申请日：2017-09-29

Applicant: LG ELECTRONICS INC.

Inventor： Inkwon Seo ,  Hyungtae Kim

IPC: H04L27/36 ,  H04W72/12 ,  H04L5/00 ,  H04L27/34 ,  H04J11/00 ,  H04L27/26

Abstract: The method, according to one embodiment of the present invention, by which in a wireless communication system a base station transmits signals to a plurality of terminals on the basis of non-orthogonal multiple access (NOMA), comprises the steps of: mapping first information bits for a first terminal and second information bits for a second terminal onto a first layer for the NOMA; modulating the first information bits and the second information bits which have been mapped on the first layer; and transmitting modulation symbols, which have been generated as a result of the modulation, to the first terminal and the second terminal, wherein the base station may map the first information bits and the second information bits onto the first layer, at a bit level before the modulation symbols have been generated.

公开(公告)号：US10917218B2

公开(公告)日：2021-02-09

申请号：US16737396

申请日：2020-01-08

Applicant: LG Electronics Inc.

Inventor： Kunil Yum ,  Jiwon Kang ,  Kijun Kim ,  Hyungtae Kim ,  Jonghyun Park

IPC: H04L5/00 ,  H04L1/16 ,  H04L1/18 ,  H04W72/04

Abstract: According to one embodiment of the present invention, a method of decoding, by a user equipment, a downlink signal in a wireless communication system comprises the steps of: receiving rate matching pattern information indicating a rate matching resource having a repetition period from a base station; and decoding a downlink shared channel using the rate matching pattern information.

公开(公告)号：US10903881B2

公开(公告)日：2021-01-26

申请号：US16824520

申请日：2020-03-19

Applicant: LG ELECTRONICS INC.

Inventor： Hyungtae Kim ,  Jonghyun Park ,  Haewook Park ,  Daesung Hwang

IPC: H04B7/02 ,  H04B7/0417 ,  H04B7/06 ,  H04B7/0456

Abstract: Disclosed is a method for a terminal reporting channel status information (CSI) to a base station in a wireless communication system. The method comprises receiving, via an upper later, information associated with a single CSI process comprising a firs enhanced multiple input multiple output (eMIMO) type and a second eMIMO type; reporting, to a base station, a first CSI updated on the basis of a first channel status information-reference signal (CSI-RS) corresponding to the first eMIMO type received from a first subframe; and receiving, from the base station, a triggering message of a second CSI calculated on the basis of a second CSI-RS corresponding to the second eMIMO type from a second subframe.

公开(公告)号：US10834624B2

公开(公告)日：2020-11-10

申请号：US16886990

申请日：2020-05-29

Applicant: LG Electronics Inc.

Inventor： Hyungtae Kim ,  Jiwon Kang

IPC: H04W24/10 ,  H04L5/00 ,  H04W72/04

Abstract: A method of transmitting, by a user equipment (UE), power measurement information related to beam reporting in a wireless communication system includes: receiving downlink control information (DCI) triggering reporting of the power measurement information; receiving a downlink reference signal for reporting of the power measurement information; and transmitting, to a base station, power measurement information determined based on the received downlink reference signal. A minimum required time for reporting of the power measurement information is (i) calculated as the sum of a first minimum required time from the last timing of the downlink reference signal to a transmission timing of the power measurement information and a second minimum required time between DCI triggering the downlink reference signal and reception of the downlink reference signal or (ii) calculated based on a pre-configured threshold value related to reporting of the power measurement information.

公开(公告)号：US10763930B2

公开(公告)日：2020-09-01

申请号：US16279544

申请日：2019-02-19

Applicant: LG Electronics Inc.

Inventor： Jiwon Kang ,  Hanbyul Seo ,  Kijun Kim ,  Hyungtae Kim ,  Youngtae Kim ,  Kilbom Lee

IPC: H04B7/06 ,  H04B7/0404 ,  H04B7/0456 ,  H04L5/00 ,  H04W72/04 ,  H04B7/0417 ,  H04W72/08

Abstract: Disclosed in the present application is a method for transmitting, by a terminal, an uplink signal to a base station through a plurality of antenna ports in a wireless communication system. Specifically, the method comprises the steps of: transmitting, to the base station, uplink reference signals corresponding to the plurality of antenna ports and antenna port grouping information: receiving, from the base station, information on an uplink precoder, which is determined on the basis of the uplink reference signals and the antenna port group information; precoding the uplink signal using the information on the uplink precoder; and transmitting the precoded uplink signal to the base station, wherein the antenna port grouping information comprises information on antenna port groups comprising the plurality of antenna ports and information of the signal distortion level between the antenna port groups.