公开(公告)号：US10171147B2

公开(公告)日：2019-01-01

申请号：US15304046

申请日：2015-04-14

Applicant: LG ELECTRONICS INC.

Inventor： Youngtae Kim ,  Kijun Kim ,  Jonghyun Park

IPC: H04W4/00 ,  H04B7/0491 ,  H04B7/06 ,  H04W36/00

Abstract: The present invention relates to a method and an apparatus for transmitting a signal of a first base station, for supporting a plurality of vertical directions in a wireless communication system which supports multiple antennas. Particularly, the method comprises the steps of: configuring a group so as to include at least one base station, among a plurality of base stations, for a first terminal having a position higher than those of the plurality of base stations; setting a specific sector for supporting coverage of the group; and determining whether to perform beamforming for the first terminal on the specific sector.

公开(公告)号：US10153879B2

公开(公告)日：2018-12-11

申请号：US15341464

申请日：2016-11-02

Applicant: LG ELECTRONICS INC.

Inventor： Hyungtae Kim ,  Kijun Kim ,  Jonghyun Park

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

Abstract: The present specification proposes a method of reporting channel quality information (CQI) by a user equipment (UE) to a base station (BS) in a wireless communication system. Specifically, the method includes the step of receiving a cell specific reference signal from the BS; calculating the CQI using the cell specific reference signal on the assumption that a specific number of resource elements (REs) for a demodulation-reference signal (DM-RS) exists; and reporting the CQI to the BS. Especially, if a most recent reported rank is 3 or 4, the specific number of REs for the DM-RS is assumed as a specific value, which is different from a minimum number of REs for the DM-RS or a maximum number of REs for the DM-RS.

公开(公告)号：US10153878B2

公开(公告)日：2018-12-11

申请号：US15326019

申请日：2015-08-31

Applicant: LG ELECTRONICS INC.

Inventor： Yunjung Yi ,  Jonghyun Park

IPC: H04L5/00 ,  H04J11/00 ,  H04W48/14 ,  H04W48/18 ,  H04W88/02

Abstract: A method and apparatus for receiving a zero-power channel state information reference signal (CSI-RS) configuration in a wireless communication system is provided. A user equipment (UE) receives at least one first zero-power CSI-RS configuration for data rate matching on a discovery reference signal (DRS) from a network, and receives a second zero-power CSI-RS configuration for interference measurement from the network. The at least one first zero-power CSI-RS configuration is not used for the second zero-power CSI-RS configuration.

公开(公告)号：US10122515B2

公开(公告)日：2018-11-06

申请号：US14758454

申请日：2013-12-30

Applicant: LG ELECTRONICS INC.

Inventor： Seungmin Lee ,  Jonghyun Park ,  Inkwon Seo ,  Hanbyul Seo

IPC: H04B7/04 ,  H04L1/00 ,  H04L5/00 ,  H04W16/24 ,  H04W72/08 ,  H04B7/0456 ,  H04B7/0417

Abstract: The present invention relates to a method and an apparatus for reporting channel state information of user equipment in a multi-cell wireless communication system. More particularly, the present invention comprises the steps of: receiving from a serving cell information on interference measurement resources (IMR) linked to at least one channel state information process (CSI process) and at least one item of CSI measurement information with respect to a plurality of radio resource sets having different interference characteristics; and reporting channel state information with respect to a specific radio resource set according to at least one item of information on the IMR and the at least one item of CSI measurement information, wherein the radio resource sets are defined so that uplink-downlink status changes depending on a system load state, and are linked to different channel state estimation processes.

公开(公告)号：US10098105B2

公开(公告)日：2018-10-09

申请号：US15263579

申请日：2016-09-13

Applicant: LG Electronics Inc.

Inventor： Hyungtae Kim ,  Jonghyun Park ,  Kijun Kim

IPC: H04W4/00 ,  H04W72/04 ,  H04L5/00 ,  H04W88/06

Abstract: The present specification proposes a method for a user equipment to receive a DM-RS (demodulation-reference signal) from a base station in a multi-antenna-based wireless communication system. Specifically, the method includes the step of configuring a plurality of parameter sets via a higher layer signaling, receiving a downlink control signal including information on an antenna port for the DM-RS and a number of layers, and receiving the DM-RS and a downlink data signal corresponding to the DM-RS based on the downlink control signal. In this case, the downlink control signal comprises an indicator for indicating one of a plurality of the parameter sets and each of a plurality of the parameter sets comprises information indicating a scrambling identifier of the DM-RS.

公开(公告)号：US10097327B2

公开(公告)日：2018-10-09

申请号：US15359776

申请日：2016-11-23

Applicant: LG ELECTRONICS INC.

Inventor： Jonghyun Park ,  Illsoo Sohn ,  Kijun Kim ,  Hanbyul Seo

IPC: H04L5/00 ,  H04B7/024 ,  H04W72/12 ,  H04L1/18 ,  H04W88/02

Abstract: A method and a user equipment (UE) for receiving, and a method and a base station (BS) for transmitting a UE specific reference signal based-downlink data channel in a wireless communication system are discussed. The method for receiving a UE specific reference signal based-downlink data channel according to an embodiment includes receiving a downlink control channel from a network; and receiving the UE-specific reference signal based-downlink data channel from the network based on the downlink control channel. The downlink control channel includes an indicator indicating one of two or more parameters configured by a higher layer. The two or more parameters indicate antenna ports of a certain reference signal which is assumed to be quasi co-located with antenna ports of a UE-specific reference signal.

公开(公告)号：US20180234959A1

公开(公告)日：2018-08-16

申请号：US15887326

申请日：2018-02-02

Applicant: LG ELECTRONICS INC.

Inventor： Minki AHN ,  Jiwon Kang ,  Kijun Kim ,  Jonghyun Park ,  Changhwan Park ,  Yunjung Yi

IPC: H04W72/04

CPC classification number: H04W72/046 ,  H04L1/16 ,  H04W72/0406 ,  H04W72/042

Abstract: In the present invention, a method for performing an uplink transmission in a wireless communication system and an apparatus for supporting the same are disclosed. Particularly, a method for transmitting an uplink control channel in a wireless communication system by a terminal may comprise receiving, from a base station, beam information regarding one or more beams for transmitting a physical uplink control channel (PUCCH), via a radio resource control (RRC) signaling; receiving, from the base station, beam indication information indicating a specific beam among the one or more beams using a medium access control-control element (MAC-CE); and transmitting, to the base station, the physical uplink control channel using the specific beam.

公开(公告)号：US10050757B2

公开(公告)日：2018-08-14

申请号：US15142449

申请日：2016-04-29

Applicant: LG ELECTRONICS INC.

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

IPC: H04L5/00 ,  H04B7/024 ,  H04W72/04 ,  H04B7/06

Abstract: The present invention relates to a wireless communication system. A method for reporting CSI (Channel State Information) in a cooperative multi-point (CoMP) wireless communication system, the method performed by a user equipment (UE) and comprising receiving first resource configuration information for a CSI-RS (Channel-State Information-Reference Signal) and second resource configuration information for interference measurement; and calculating CSI using the first resource configuration information and the second resource configuration information, the CSI being for one or more base stations (BSs) among a plurality of BSs participating the COMP, wherein an interference measurement resource according to the second resource configuration information exists in a union of zero-power CSI-RS resources of each of the plurality of BSs.

公开(公告)号：US09985709B2

公开(公告)日：2018-05-29

申请号：US14760439

申请日：2014-01-14

Applicant: LG ELECTRONICS INC.

Inventor： Jonghyun Park ,  Kijun Kim

IPC: H04B7/04 ,  H04B7/06

CPC classification number: H04B7/0632 ,  H04B7/0473 ,  H04B7/0617 ,  H04L1/0026 ,  H04L1/06

Abstract: A method for transmitting channel state information (CSI) for 3-dimensional multi-input multi-output (3D-MIMO) beamforming by a user equipment (UE) in a wireless communication system, and the UE therefore are discussed. The method includes, for example, receiving a reference signal from a base station supporting a 2-dimensional (2D) antenna array; determining the CSI using the reference signal; and transmitting the determined CSI to the base station. The CSI comprises a channel quality indicator (CQI). The CQI is determined using a codeword-to-layer mapping rule. A codeword-to-layer mapping rule for a first dimension is different from a codeword-to-layer mapping rule for a second dimension. The first dimension and the second dimension each correspond to a horizontal or vertical direction in the 2D antenna array.

公开(公告)号：US09973253B2

公开(公告)日：2018-05-15

申请号：US15101889

申请日：2014-12-05

Applicant: LG ELECTRONICS INC.

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

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

CPC classification number: H04B7/066 ,  H04B7/0478 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0645 ,  H04B7/065 ,  H04L1/0026 ,  H04L1/0027 ,  H04L5/0053 ,  H04L5/0055 ,  H04L5/0057 ,  H04W24/10

Abstract: The present invention relates to a method for a first terminal to report channel state information (CSI) in a wireless communication system, the method comprising the steps of: receiving, from a base station, an allocation of a group CSI report setting associated with a terminal group including the first terminal; broadcasting the group CSI report setting to the terminal group; and reporting group CSI to the base station, wherein the terminal group consists of the first terminal and at least one second terminal, and the group CSI report setting defines, as the group CSI, the CSI of the first terminal corresponding to a part of the CSI about each of a plurality of terminals constituting the terminal group.