公开(公告)号：US20220021421A1

公开(公告)日：2022-01-20

申请号：US17295619

申请日：2019-11-19

Applicant: LG ELECTRONICS INC. ,  SOGANG UNIVERSITY RESEARCH FOUNDATION

Inventor： Jonghyun Park ,  Jiyeong Yang ,  Wonjin Sung ,  Haewook Park

IPC: H04B7/0456 ,  H04L5/00

Abstract: A method for reporting channel state information (CSI) by means of a terminal in a wireless communication system, according to one embodiment of the present invention, comprises the steps of: receiving a channel state information reference signal (CSI-RS) from a base station, wherein the CSI-RS is related to at least one panel of an antenna array of the base station; generating CSI on the basis of the CSI-RS and a codebook according to a specific shape of the at least one panel; and reporting the CSI to the base station.

公开(公告)号：US20210376897A1

公开(公告)日：2021-12-02

申请号：US17277976

申请日：2019-09-23

Applicant: LG ELECTRONICS INC.

Inventor： Haewook Park ,  Jiwon Kang ,  Hyungtae Kim

IPC: H04B7/06 ,  H04B7/024 ,  H04L1/16 ,  H04W24/10 ,  H04W72/04

Abstract: A method of reporting, by a terminal, channel state information (CSI) includes: receiving first configuration information related to a channel state information (CSI) report of a first bandwidth part (BWP) from a first base station and second configuration information related to a CSI report of a second BWP from a second base station, in which the first BWP is composed of a plurality of first subbands including at least one first subband for the CSI report, and the second BWP is composed of a plurality of second subbands including at least one second subband for the CSI report; based on that the at least one first subband and the at least one second subband partially or entirely overlap, obtaining a first CSI for overlapping at least one subband; and reporting the first CSI to the first base station and the second base station.

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：US11121755B2

公开(公告)日：2021-09-14

申请号：US16816946

申请日：2020-03-12

Applicant: LG Electronics Inc.

Inventor： Hyunsu Cha ,  Jiwon Kang ,  Kijun Kim ,  Jonghyun Park ,  Haewook Park

IPC: H04B7/06 ,  H04L5/00 ,  H04L1/00 ,  H04L1/16

Abstract: The present disclosure provides a method for reporting channel state information (CSI) in a wireless communication system. Specifically, a method for reporting, by a user equipment (UE), channel state information (CSI) in a wireless communication system includes: receiving, from a base station, control information related to a configuration of a channel state information reference signal (CSI-RS) resource, wherein the control information includes CDM type information representing a type of code division multiplexing (CDM) applied to the CSI-RS resource; receiving, from the base station, an X-port CSI-RS on one or more component CSI-RS resource element (RE) patterns; and reporting, to the base station, the CSI based on the received X-port CSI-RS. Accordingly, the present disclosure can flexibly provide CSI-RS resource locations.

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：US11005629B2

公开(公告)日：2021-05-11

申请号：US16483020

申请日：2018-02-01

Applicant: LG ELECTRONICS INC.

Inventor： Haewook Park ,  Jiwon Kang ,  Jonghyun Park ,  Kijun Kim ,  Kunil Yum ,  Seungmin Lee

IPC: H04L5/00 ,  H04J13/18 ,  H04W72/04 ,  H04J13/16

Abstract: Disclosed are a method for transmitting and receiving a channel state information reference signal in a wireless communication system and a device therefor. Specifically, a method for transmitting, by a base station, a channel state information-reference signal (CSI-RS) in a wireless communication system includes: transmitting configuration information of the CSI-RS to user equipment (UE); and transmitting, to the UE, the CSI-RS through one or more antenna ports, in which the position of an orthogonal frequency division multiplexing (OFDM) symbol for transmitting the CSI-RS may be configured by the configuration information, and the position of a resource element (RE) for transmitting the CSI-RS may be determined by M RE units (M is 1 and/or 2 and/or 4 and/or 8).

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：US10819412B2

公开(公告)日：2020-10-27

申请号：US16405661

申请日：2019-05-07

Applicant: LG ELECTRONICS INC.

Inventor： Haewook Park ,  Kijun Kim ,  Jonghyun Park

IPC: H04B7/06 ,  H04B7/0456 ,  H04B7/0413

Abstract: A method for transmitting and receiving a signal based on a codebook in a multi-antenna wireless communication and a device therefor are disclosed. Specifically, a method for transmitting and receiving a signal by a UE on the basis of a codebook in a 2-dimensional multi-antenna wireless communication system includes: receiving a channel state information-reference signal (CSI-RS) from an eNB through multiple antenna ports; and reporting channel state information to the eNB, wherein the channel state information includes a precoding matrix indicator (PMI), the PMI includes a first PMI for selecting a precoding matrix set from the codebook and a second PMI for selecting a precoding matrix from the precoding matrix set, pairs of indexes of a first dimension and indexes of a second dimension of precoding matrices belonging to the precoding matrix set are (x,y), (x+2,y), (x,y+1) and (x+1,y+1), and x and y are integers which are not negative numbers.

公开(公告)号：US10819408B2

公开(公告)日：2020-10-27

申请号：US16288742

申请日：2019-02-28

Applicant: LG Electronics Inc.

Inventor： Jonghyun Park ,  Jiwon Kang ,  Kijun Kim ,  Haewook Park

IPC: H04B7/0456 ,  H04W72/04 ,  H04B7/06 ,  H04L25/02 ,  H04L27/26 ,  H04L5/00 ,  H04W72/06

Abstract: Disclosed is a method for uplink transmission and reception in a wireless communication system and an apparatus therefor. Specifically, a method for performing uplink transmission by a user equipment (UE) in a wireless communication system may comprise the steps of: receiving downlink control information (DCI) including sounding reference signal (SRS) resource indication (SRI) and precoding indication from a base station; and transmitting an uplink to the base station by applying precoding indicated by the precoding indication on an antenna port of an SRS transmitted within an SRS resource selected by the SRI.

公开(公告)号：US10749583B2

公开(公告)日：2020-08-18

申请号：US16319225

申请日：2018-06-14

Applicant: LG ELECTRONICS INC.

Inventor： Haewook Park ,  Kijun Kim ,  Minki Ahn

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

Abstract: It is disclosed a method for transmitting and receiving channel state information in a wireless communication system and a device for supporting the same. Particularly, 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.