公开(公告)号：US10433317B2

公开(公告)日：2019-10-01

申请号：US15529038

申请日：2015-11-23

Applicant: LG ELECTRONICS INC.

Inventor： Jonghyun Park ,  Suhwan Lim ,  Suckchel Yang ,  Hanbyul Seo

IPC: H04W72/08 ,  H04W24/10 ,  H04W72/04 ,  H04W72/02 ,  H04W76/14 ,  H04W88/04 ,  H04W88/02 ,  H04W88/08 ,  H04W8/00 ,  H04W48/12

Abstract: Disclosed are a method for assisting device-to-device (D2D) communication in a wireless communication system supporting D2D communication and a device therefor. Specifically, the method for a D2D assisting device to assist D2D communication in a wireless communication system supporting D2D communication may comprise the steps of: receiving resource pool information for D2D communication from a base station; performing D2D activity monitoring on a D2D user equipment by listening to one or more D2D communication links in the resource pool; and reporting the results of the D2D activity monitoring to the base station, or allocating a resource to the D2D user equipment on the basis of the results of the D2D activity monitoring.

公开(公告)号：US10425142B2

公开(公告)日：2019-09-24

申请号：US15778395

申请日：2016-11-23

Applicant: LG ELECTRONICS INC.

Inventor： Jonghyun Park ,  Kijun Kim ,  Haewook Park

IPC: H04B7/06 ,  H04W76/27 ,  H04B7/0456 ,  H04W72/04

Abstract: A method, by which a terminal transmits channel state information in a wireless communication system, comprises a step for performing one integrated CSI process, the step for performing one integrated CSI process comprising the steps of: receiving, from a base station, a first channel state information-reference signal related to a CSI-RS resource which is not pre-coded; reporting, to the base station, a first pre-coding matrix indicator derived on the basis of the first CSI-RS; receiving, from the base station, a second CSI-RS related to one CSI-RS resource of a beam-formed CSI-RS type; and reporting, to the base station, a second rank indicator/channel quality indicator/second PMI derived on the basis of the second CSI-RS.

公开(公告)号：US10362449B2

公开(公告)日：2019-07-23

申请号：US15750072

申请日：2016-08-04

Applicant: LG ELECTRONICS INC.

Inventor： Jonghyun Park ,  Hanbyul Seo

IPC: H04H20/71 ,  H04W4/06 ,  H04J11/00 ,  H04W72/00 ,  H04W72/04 ,  H04L12/18 ,  H04J13/00

Abstract: A method for a terminal to receive a broadcast/multicast message from a non-serving cell in a wireless communication system according to one embodiment of the present invention comprises: a step of transmitting reception capability information of a terminal to a serving cell; a step of receiving a physical downlink shared channel (PDSCH) from the serving cell; and a step of receiving a broadcast/multicast message from a non-serving cell, wherein whether or not the PDSCH and the broadcast/multicast message are transmitted via a same subframe can be determined on the basis of the reception capability of the terminal.

公开(公告)号：US10271322B2

公开(公告)日：2019-04-23

申请号：US15459998

申请日：2017-03-15

Applicant: LG ELECTRONICS INC.

Inventor： Jonghyun Park ,  Kijun Kim ,  Hanbyul Seo

IPC: H04W4/00 ,  H04W72/04 ,  H04L5/00 ,  H04B7/0413 ,  H04L12/18 ,  H04W72/00 ,  H04B7/06 ,  H04W4/02 ,  H04B7/0417 ,  H04B7/0426 ,  H04W4/06 ,  H04W28/18 ,  H04W72/12

Abstract: The present invention relates to a wireless communication system, and more specifically, disclosed are a method and an apparatus for transmitting or receiving a downlink signal by considering an antenna port relationship. A method for user equipment receiving a physical downlink shared channel (PDSCH) signal in the wireless communication system, according to one embodiment of the present invention, comprises the steps of: determining a start symbol index of the PDSCH from the downlink subframe; and receiving the PDSCH signal based on the start symbol index. When the DCI is comprised according to DCI format 1A, and the downlink subframe is a multicast broadcast single frequency network (MBSFN) subframe, the start symbol index can be determined depending on a PDSCH start symbol value which is included in a PDSCH resource element mapping and Quasi co-location indicator (PQI) that is established by an upper layer.

公开(公告)号：US10270504B2

公开(公告)日：2019-04-23

申请号：US15747135

申请日：2016-07-25

Applicant: LG ELECTRONICS INC.

Inventor： Haewook Park ,  Kijun Kim ,  Jonghyun Park

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

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 two dimensional multi-antenna wireless communication system comprises the steps of: receiving a channel state information reference signal (CSI-RS) from an eNB through a multi-antenna port and reporting channel state information to the eNB, 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 matrices from a codebook and a second PMI for determining one precoding matrix applied to two layers from the set of precoding matrices, and the precoding matrix may include a first precoding vector applied to a first layer and a second precoding vector applied to a second layer.

公开(公告)号：US10250302B2

公开(公告)日：2019-04-02

申请号：US15510844

申请日：2015-09-18

Applicant: LG ELECTRONICS INC.

Inventor： Youngtae Kim ,  Kijun Kim ,  Hyungtae Kim ,  Jonghyun Park ,  Hyukjin Chae

IPC: H04B7/0413 ,  H04B7/06 ,  H04L5/00 ,  H04L27/26 ,  H04W72/04 ,  H04B7/0456

Abstract: The present invention relates to a method and an apparatus for transmitting, by a base station, a reference signal in a wireless communication system supporting a multi-antenna consisting of a plurality of horizontal domain antennas and a plurality of vertical domain antennas. Specifically, the method comprises the steps of: configuring, as a cell-specific reference signal (CRS) port, M first antenna ports among a total of N antennas that the base station has (where N and M are positive integers, N>M); transmitting a CRS using the M first antenna ports and transmitting a demodulation reference signal (DM-RS) using O second antenna ports (where O is a positive integer, N>O), to a terminal; and receiving channel measurement information using the CRS and the DM-RS which is fed back from the terminal.

公开(公告)号：US10224993B2

公开(公告)日：2019-03-05

申请号：US15306741

申请日：2015-05-04

Applicant: LG ELECTRONICS INC.

Inventor： Youngtae Kim ,  Kijun Kim ,  Jonghyun Park ,  Yunjung Yi

IPC: H04B7/06 ,  H04B7/10

Abstract: The present invention relates to a method and an apparatus for beamforming by a base station in a wireless communication system supporting multiple antennas. Particularly, the method comprises the steps of: determining a first coverage on the basis of long-term feedback information; setting multiple logical antenna ports for the first coverage on the basis of a combination of multiple horizontal beams and multiple vertical beams; and transmitting a channel state information-reference signal to a terminal according to a precoding matrix index which is set on the basis of the multiple antenna ports, wherein the multiple horizontal beams respectively correspond to multiple second coverages divided into horizontal domains on the basis of the first coverage, and the multiple vertical beams respectively correspond to multiple third coverages divided into vertical domains on the basis of the first coverage.

公开(公告)号：US10181964B2

公开(公告)日：2019-01-15

申请号：US15121465

申请日：2015-03-02

Applicant: LG ELECTRONICS INC.

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

IPC: H04B7/06 ,  H04L25/02 ,  H04B17/24 ,  H04B17/345 ,  H04B17/309

Abstract: A method for reporting a channel state of a terminal performed by the terminal is disclosed. The method includes receiving a channel state information-reference signal (CSI-RS) configuration for verifying validity of channel estimation using only a part of two-dimensional (2D) array antenna ports configured for the terminal, verifying the validity of the channel estimation using CSI-RS configuration and obtaining a channel estimation validity indicator, and transmitting the channel estimation validity indicator and channel state information based on the channel estimation validity indicator.

公开(公告)号：US10159071B2

公开(公告)日：2018-12-18

申请号：US15708336

申请日：2017-09-19

Applicant: LG ELECTRONICS INC.

Inventor： Jonghyun Park ,  Dongyoun Seo ,  Yunjung Yi ,  Hanbyul Seo ,  Kijun Kim ,  Byounghoon Kim

IPC: H04W72/04 ,  H04L5/00

Abstract: Disclosed is a method for a terminal for receiving a downlink signal from a plurality of cells according to the semi-persistent scheduling (SPS) method in a wireless communication system. Specifically, the method comprises the steps of: receiving, in a first subframe, a first or second type scheduling information indicating an activation, according to the SPS method, from a serving cell from among the plurality of cells; and, in the first subframe and a second subframe configured via a higher layer after the first subframe, receiving the downlink signal from one cell from among the plurality of cells in accordance with resource allocation information comprised in the first or the second type scheduling information, wherein the first type scheduling information comprises quasi co-location (QCL) information for the serving cell and the one cell, and the QCL information applied in the first and second subframes is updated in accordance with the type of the scheduling information.

公开(公告)号：US10141987B2

公开(公告)日：2018-11-27

申请号：US15569613

申请日：2016-05-12

Applicant: LG ELECTRONICS INC.

Inventor： Youngtae Kim ,  Kijun Kim ,  Yunjung Yi ,  Jonghyun Park

IPC: H04L1/02 ,  H04B7/0417 ,  H04B7/04 ,  H04B7/06 ,  H04L5/00 ,  H04B7/0456

Abstract: The present invention relates to a method and apparatus for feeding back, by a terminal, reference signal information in wireless communication using a two-dimensional active antenna system including a plurality of antennas. Particularly, the method for feeding back reference signal information comprises the steps of: receiving, from a base station, a reference signal configuration including identifiers of a plurality of reference signals having a first reference signal set and a second reference signal set; receiving the plurality of reference signals to which the precoding is applied; measuring reference signal received power (RSRP) for each of the plurality of reference signals; and transmitting, to the base station, information on at least a part of the first reference signal set and information on at least a part of the second reference signal set, on the basis of the measured RSRP. In addition, the precoding for the terminal is determined on the basis of the information on at least a part of the first reference signal set, and the interference information for the terminal can be determined on the basis of the information on at least a part of the second reference signal set.