公开(公告)号：US10771141B2

公开(公告)日：2020-09-08

申请号：US16065452

申请日：2017-07-26

Applicant: LG Electronics Inc.

Inventor： Kunil Yum ,  Kijun Kim ,  Yunjung Yi ,  Jiwon Kang ,  Hyungtae Kim

IPC: H04B7/06 ,  H04W76/27 ,  H04B7/0417 ,  H04L5/00 ,  H04W72/04 ,  H04B17/24 ,  H04W24/10

Abstract: A channel state reporting method on the basis of an aperiodic channel state information-reference signal (CSI-RS) in a wireless communication system according to an embodiment of the present invention may comprise the steps of: receiving an aperiodic channel state information (CSI) request; and transmitting aperiodic CSI-RS-based CSI at a timing corresponding to one among a plurality of candidate values in response to the aperiodic CSI request, wherein the plurality of candidate values are selected according to a CSI-related parameter, and the CSI-related parameter includes at least one among a type of information included in the CSI, frequency granularity of the CSI, use or non-use of a code book when the CSI is derived, and the number of antenna ports of the CSI-RS.

公开(公告)号：US10666338B2

公开(公告)日：2020-05-26

申请号：US15309019

申请日：2015-05-29

Applicant: LG Electronics Inc.

Inventor： Youngtae Kim ,  Hanjun Park ,  Jonghyun Park ,  Kijun Kim ,  Bonghoe Kim ,  Kunil Yum

IPC: H04B7/06 ,  H04L1/20 ,  H04L1/00 ,  H04B7/0456 ,  H04B7/01

Abstract: The present invention relates to a method and device for measuring channel quality by a base station having a two-dimensional active antenna system including multiple antennas. Particularly, the method comprises: receiving channel state information (CSI) generated on the basis of a first reference signal relating to a part of multiple antennas, from a terminal; selecting a precoding and a rank based on a precoding matrix indicator (PMI) and a rank indicator (RI) of the received CSI; generating a port by applying the selected precoding and the selected rank; through the generated port, transmitting, to the terminal, a physical downlink shared channel (PDSCH) and a demodulation-reference signal (DM-RS) configured for the terminal; and receiving, from the terminal, a channel quality indication (CQI) feedback for reducing a mismatch for the CQI of the CSI, wherein the CQI feedback may be generated based on the DM-RS.

公开(公告)号：US10601484B2

公开(公告)日：2020-03-24

申请号：US16266890

申请日：2019-02-04

Applicant: LG ELECTRONICS INC.

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

IPC: H04L12/28 ,  H04B7/06 ,  H04B17/24 ,  H04L5/00 ,  H04W72/04 ,  H04J1/16

Abstract: A channel state reporting method based on a channel state information-reference signal (CSI-RS) in a wireless communication system, according to one embodiment of the present invention, comprises the steps of: receiving a CSI-RS-related configuration from a base station; calculating a 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 may include a CSI-RS configuration for a CSI or a CSI-RS configuration for beam management (BM).

公开(公告)号：US10582405B2

公开(公告)日：2020-03-03

申请号：US16089904

申请日：2017-03-23

Applicant: LG ELECTRONICS INC.

Inventor： Kunil Yum ,  Jonghyun Park ,  Haewook Park

IPC: H04L12/26 ,  H04W24/10 ,  H04B7/0456 ,  H04B7/06

Abstract: The present invention according to one embodiment comprises the steps of: receiving linear-combination (LC) code word-based channel state reporting configuration, which is expressed by parameters comprising an LC coefficient and a phase differential (co-phase) value between antenna groups having mutually different polarization characteristics; measuring a downlink reference signal for a channel state reporting in accordance with the received channel state reporting configuration; and transmitting, to a base station, the LC code book-based channel state report corresponding to the reference signal measurement, wherein the channel state reporting can only support a broadband reporting mode.

公开(公告)号：US10397936B2

公开(公告)日：2019-08-27

申请号：US15528036

申请日：2015-12-02

Applicant: LG ELECTRONICS INC.

Inventor： Kunil Yum ,  Suckchel Yang ,  Seungmin Lee ,  Daesung Hwang ,  Hyunho Lee

IPC: H04L12/28 ,  H04W72/12 ,  H04J11/00 ,  H04L5/00 ,  H04W72/04 ,  H04B7/0413 ,  H04L27/26

Abstract: An embodiment of the present invention relates to a method for receiving control information by a user equipment (UE) having multiple component carrier groups configured therefor in a wireless communication system. The method may comprise the steps of: receiving, from a base station, configuration information on the transmission of main control information which comprises common control information for individual component carrier groups; and attempting to detect main control information for each of the multiple component carrier groups and sub-control information comprising individual component carrier-specific control information, using the configuration information, wherein the configuration information may comprise information on the transmission cycle and transmission offset of the main control information for each of the multiple component carrier groups.

公开(公告)号：US10374664B2

公开(公告)日：2019-08-06

申请号：US15773097

申请日：2016-10-31

Applicant: LG ELECTRONICS INC.

Inventor： Kunil Yum ,  Jonghyun Park ,  Kijun Kim

IPC: H04B7/04 ,  H04B7/06

Abstract: A method for reporting an aperiodic channel condition in a wireless communication system, according to an embodiment of the present invention, is performed by a terminal. The method comprises the steps of: receiving, from a base station, setting for one or more channel state information (CSI) processes including a plurality of channel state information-reference signals (CSI-RS) resources, wherein precoding is applied to each of the plurality of CSI-RS resources; receiving an aperiodic CSI report request from the base station; and transmitting, to the base station, an aperiodic CSI for a CSI process indicated by the aperiodic CSI report request, wherein, if a certain time has not elapsed after a CSI-RS resource index for the CSI process indicated by the aperiodic CSI report request is reported, the transmitted aperiodic CSI may include a CSI-RS resource index for a CSI process which has not been updated.

公开(公告)号：US10334474B2

公开(公告)日：2019-06-25

申请号：US15027213

申请日：2014-10-06

Applicant: LG ELECTRONICS INC.

Inventor： Youngtae Kim ,  Kijun Kim ,  Hyungtae Kim ,  Jonghyun Park ,  Hanjun Park ,  Kunil Yum ,  Hyunho Lee

IPC: H04W24/08 ,  H04W72/04 ,  H04W72/08 ,  H04J11/00 ,  H04B7/0456 ,  H04B1/7107 ,  H04L5/00 ,  H04L1/00 ,  H04W28/04

Abstract: The present invention relates to a method and a device for cancelling interference of a terminal in a wireless communication system. More specifically, the method comprises the steps of: receiving information on N (N is a natural number) subbands of a neighboring cell; decoding an interference signal of the neighbor cell on the basis of the information on subbands of the neighbor cell; and cancelling the interference caused by the neighbor cell from a signal which is received from a serving cell, on the basis of the decoded interference signal, wherein the information on the subbands indicates a transmission mode TM of the neighbor cell.

公开(公告)号：US10193734B2

公开(公告)日：2019-01-29

申请号：US15390135

申请日：2016-12-23

Applicant: LG ELECTRONICS INC.

Inventor： Seokmin Shin ,  Kunil Yum ,  Yunjung Yi ,  Bonghoe Kim ,  Hyunsoo Ko

IPC: H04L27/26 ,  H04W56/00 ,  H04W84/04 ,  H04L5/00

Abstract: Disclosed is a method for transmitting/receiving a signal in a wireless communication system supporting narrow-band (NB)-LTE, which is performed a terminal, including: receiving a narrow band synchronization signal from a base station; acquiring time synchronization and frequency synchronization with the base station based on the narrow band synchronization signal and detecting an identifier of the base station; and receiving a narrow band broadcast channel from the base station based on the detected identifier of the base station.

公开(公告)号：US10136422B2

公开(公告)日：2018-11-20

申请号：US15179807

申请日：2016-06-10

Applicant: LG ELECTRONICS INC.

Inventor： Kunil Yum ,  Yunjung Yi ,  Bonghoe Kim

IPC: H04W72/04 ,  H04L5/00 ,  H04W4/70

Abstract: Provided herein is a method of receiving a downlink signal in a wireless communication system, the method being implemented by a cellular-IoT (Internet of things) (CIoT) mobile terminal and including searching for control information directed to the mobile terminal in a plurality of candidate downlink control channel resource regions corresponding to a coverage class of the mobile terminal on a part of a downlink resource, and receiving a downlink data channel indicated by control information received in at least one of the plurality of candidate downlink control channel resource regions, wherein the plurality of candidate downlink control channel resource regions is configured to have a period set for each of coverage classes, wherein each of the plurality of candidate downlink control channel resource regions is configured to have a duration configured for each of the coverage classes.

公开(公告)号：US20180331742A1

公开(公告)日：2018-11-15

申请号：US15773097

申请日：2016-10-31

Applicant: LG ELECTRONICS INC.

Inventor： Kunil Yum ,  Jonghyun Park ,  Kijun Kim

IPC: H04B7/06 ,  H04B7/08 ,  H04L27/26

CPC classification number: H04B7/063 ,  H04B7/0417 ,  H04B7/0621 ,  H04B7/0626 ,  H04B7/0643

Abstract: A method for reporting an aperiodic channel condition in a wireless communication system, according to an embodiment of the present invention, is performed by a terminal. The method comprises the steps of: receiving, from a base station, setting for one or more channel state information (CSI) processes including a plurality of channel state information-reference signals (CSI-RS) resources, wherein precoding is applied to each of the plurality of CSI-RS resources; receiving an aperiodic CSI report request from the base station; and transmitting, to the base station, an aperiodic CSI for a CSI process indicated by the aperiodic CSI report request, wherein, if a certain time has not elapsed after a CSI-RS resource index for the CSI process indicated by the aperiodic CSI report request is reported, the transmitted aperiodic CSI may include a CSI-RS resource index for a CSI process which has not been updated.