公开(公告)号：US11108440B2

公开(公告)日：2021-08-31

申请号：US16636321

申请日：2018-08-03

Applicant: LG ELECTRONICS INC.

Inventor： Hyunsu Cha ,  Kijun Kim ,  Jonghyun Park ,  Haewook Park ,  Sukhyon Yoon

IPC: H04W4/00 ,  H04B7/0408 ,  H04B17/336 ,  H04B7/06 ,  H04L5/00 ,  H04W80/08

Abstract: The present invention relates to a method and an apparatus for performing beam management by a terminal in a wireless communication system. The present invention may provide a method and an apparatus in which a terminal receives, from a base station, configuration information of channel state information (CSI)-RS, and receives the CSI-RS on the basis of the configuration information, wherein the CSI-RS is transmitted through a plurality of antenna ports, and the terminal configures a beam of each of the plurality of antenna ports on the basis of the CSI-RS, wherein the CSI-RS is mapped to subcarriers on a frequency axis at an interval of predetermined number of resource elements (REs), and the CSI-RS is repeatedly transmitted according to the interval of the predetermined number of REs within a specific time period.

公开(公告)号：US11101863B2

公开(公告)日：2021-08-24

申请号：US16126462

申请日：2018-09-10

Applicant: LG Electronics Inc.

Inventor： Jiwon Kang ,  Jonghyun Park ,  Kilbom Lee ,  Kijun Kim ,  Sukhyon Yoon

IPC: H04B7/06 ,  H04L5/00 ,  H04J13/16 ,  H04W76/27 ,  H04B7/0456 ,  H04W72/04 ,  H04L27/26

Abstract: Disclosed is a method for transmitting and receiving a channel state information (CSI)-reference signal (RS) in a wireless communication system.
Specifically, the method performed by a base station may include: configuring control information indicating that an antenna port for all CSI-RS resources included in a CSI-RS resource set is same, wherein the CSI-RS resource set is used for tracking at least one of a time or a frequency; transmitting the configured control information to a user equipment (UE); and transmitting the CSI-RS to the UE through all the CSI-RS resources.
In doing so, the UE is capable of performing time/frequency tracking more precisely.

公开(公告)号：US11088732B2

公开(公告)日：2021-08-10

申请号：US16065085

申请日：2017-09-26

Applicant: LG ELECTRONICS INC.

Inventor： Haewook Park ,  Hyungtae Kim ,  Jonghyun Park

IPC: H04B7/06 ,  H04B7/0417 ,  H04B7/0456 ,  H04B7/0426

Abstract: Disclosed are a method for transmitting/receiving channel state information in a wireless communication system and an apparatus for the same. Particularly, a method for reporting channel state information (CSI) by a user equipment (UE) in a wireless communication system may comprise the steps of: receiving channel state information reference signal (CSI-RS) from a base station through a multi-antenna port; and reporting CSI to the base station, wherein the CSI includes selection information indicating multiple codewords used to generate a precoding matrix within a codebook for reporting the CSI, a power coefficient and a phase coefficient are applied to each of the multiple codewords and the precoding matrix is then generated on the basis of a linear combination of the multiple codewords to each of which the power and phase coefficients are applied, and the selection information and information indicating the power coefficient are transmitted at different CSI reporting instances.

公开(公告)号：US11075678B2

公开(公告)日：2021-07-27

申请号：US16089884

申请日：2017-03-23

Applicant: LG ELECTRONICS INC.

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

IPC: H04L1/00 ,  H04B7/06 ,  H04L5/00 ,  H04W72/04

Abstract: The present invention relates to a method for receiving a downlink signal in a wireless communication system. The method, according to one embodiment of the present invention, is performed by a terminal and may comprise the steps of: receiving control information indicating an aperiodic channel state information-reference signal (CSI-RS) resource masked with an identifier associated with an aperiodic CSI-RS; if the control information does not indicate an aperiodic CSI-RS resource for each terminal in a cell, determining that the aperiodic CSI-RS resource indicated by the control information is a resource element (RE) puncturing pattern for a downlink data channel or an improved downlink control channel; and decoding the downlink data channel or the improved downlink control channel by using the RE puncturing pattern.

公开(公告)号：US11051198B2

公开(公告)日：2021-06-29

申请号：US16608623

申请日：2018-04-27

Applicant: LG Electronics Inc.

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

IPC: H04L5/00 ,  H04W24/10 ,  H04B7/06 ,  H04W72/08

Abstract: A method for channel and interference measurement in a wireless communication system according to an embodiment of the present disclosure is performed by a terminal, and may comprise the steps of: receiving a resource configuration for channel and interference measurement from a base station, wherein a resource for the channel and interference measurement is shared with a plurality of terminals served by the base station; and performing channel and interference measurement on the basis of the received resource configuration for the channel and interference measurement, wherein the resource for the channel and interference measurement includes a resource in which a resource for channel measurement and a resource for interference measurement are configured in a fully or partially overlapping manner, and the fully or partially overlapping resource may be configured in units of antenna ports or antenna port groups, which correspond to the resource for channel measurement.

公开(公告)号：US11039453B2

公开(公告)日：2021-06-15

申请号：US16793672

申请日：2020-02-18

Applicant: LG Electronics Inc.

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

IPC: H04W72/08 ,  H04B17/336 ,  H04W24/10 ,  H04W72/04

Abstract: A method for measuring interference by a terminal in a wireless communication system according to one embodiment of the present invention may comprise the steps of: receiving interference measurement configuration information including a semi-persistence channel state information-interference (CSI-IM) configuration; receiving a request which indicates measurement of the semi-persistence CSI-IM configuration; and measuring the semi-persistence CSI-IM configuration in response to the received request, wherein the semi-persistence CSI-IM configuration may indicate CSI-IM which is performed at predetermined periods during a predetermined time interval.

公开(公告)号：US11018822B2

公开(公告)日：2021-05-25

申请号：US16756260

申请日：2019-02-21

Applicant: LG Electronics Inc.

Inventor： Kukheon Choi ,  Kunil Yum ,  Jiwon Kang ,  Jonghyun Park

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

Abstract: The present disclosure provides a method for transmitting and receiving a sounding reference signal (SRS) in a wireless communication system and a device therefor. Specifically, a method for transmitting, by a terminal, an SRS in a wireless communication system may comprise the steps of: receiving configuration information for transmission of the SRS from a base station; and transmitting the SRS to the base station by using one or more SRS resources for transmission of the SRS, the configuration information including the one or more SRS resources and information relating to the usage of the one or more SRS resources, wherein a guard period relating to the one or more SRS resources is configured, and when the transmissions of the guard period and a particular uplink channel configured for the terminal overlap each other, the priority between the guard period and the particular uplink channel is configured to be the same as that between the SRS and the particular uplink channel.

公开(公告)号：US11018737B2

公开(公告)日：2021-05-25

申请号：US15747037

申请日：2016-07-25

Applicant: LG ELECTRONICS INC.

Inventor： Haewook Park ,  Kijun Kim ,  Jonghyun Park

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

Abstract: Disclosed are a codebook-based signal transmission and reception method in a multi-antenna wireless communication system and an apparatus therefor. Specifically, a method for transmitting or receiving a signal on the basis of a codebook by a terminal in a 2-dimensional multi-antenna wireless communication system comprises the steps of: receiving a channel state information reference signal (CSI-RS) through a multi-antenna port from a base station; and reporting channel state information to the base station, wherein the channel state information may include a precoding matrix indicator (PMI) for indicating a precoding matrix, the PMI may include a first PMI for selecting a set of precoding matrixes from the codebook and a second PMI for determining one precoding matrix applied to a multi-layer from the set of precoding matrixes, the precoding matrix may be configured by a precoding vector applied to each layer, and the precoding vector may be determined in the set of precoding vectors determined by the first PMI.

公开(公告)号：US11005547B2

公开(公告)日：2021-05-11

申请号：US16476010

申请日：2018-01-02

Applicant: LG Electronics Inc.

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

IPC: H04B7/06 ,  H04L1/00 ,  H04L5/00 ,  H04W24/10 ,  H04W72/10

Abstract: A method for channel state information-reference signal (CSI-RS)-based channel state reporting in a wireless communication system according to one embodiment of the present disclosure may comprise the steps of: receiving a CSI-RS-related configuration from a base station; calculating CSI by measuring a CSI-RS according to the CSI-RS-related configuration; and transmitting the calculated CSI to the base station, wherein the CSI-RS-related configuration comprises configurations for different types of CSI-RSs, and when at least two different types of CSI-RSs are configured to be transmitted in the same resource, a terminal measures only a CSI-RS having a predetermined higher priority.

公开(公告)号：US10993255B2

公开(公告)日：2021-04-27

申请号：US16482230

申请日：2018-01-31

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/04 ,  H04W72/12

Abstract: Disclosed in the present application is a method for a terminal transmitting an uplink signal in a wireless communication system. Particularly, the method comprises the steps of: receiving, from the base station, allocation information for resource blocks in a wideband and information on precoders indicated in sub-band units; configuring the allocated resource blocks into sub-bands including two or more continuous resource blocks; and transmitting the uplink signal through the sub-bands to the base station by applying the precoders to corresponding sub-bands.