公开(公告)号：US10484068B2

公开(公告)日：2019-11-19

申请号：US16200008

申请日：2018-11-26

Applicant: LG Electronics Inc.

Inventor： Hyungtae Kim ,  Jiwon Kang

IPC: H04B7/06 ,  H04L1/00 ,  H04W24/10 ,  H04W72/04 ,  H04W72/12

Abstract: A method of reporting, by a user equipment (UE), channel state information (CSI) in a wireless communication system, includes: receiving, by the UE and from a base station (BS), downlink control information (DCI) related to an aperiodic CSI report that is to be performed by the UE in a slot n; determining, by the UE, a value nCQI_ref based on a number of symbols Z′ related to a time for computing the CSI; determining, by the UE, a CSI reference resource as being a slot n−nCQI_ref in a time domain that is to be used for the aperiodic CSI report; and transmitting, by the UE and to the BS, the aperiodic CSI report in the slot n, based on the CSI reference resource being slot n−nCQI_ref. The CSI may be calculated by using the most recent A CSI-RS, and thereby the most recent CSI may be reported.

公开(公告)号：US10368354B2

公开(公告)日：2019-07-30

申请号：US15560776

申请日：2016-03-24

Applicant: LG ELECTRONICS INC.

Inventor： Youngtae Kim ,  Kijun Kim ,  Jonghyun Park ,  Bonghoe Kim ,  Hyungtae Kim

IPC: H04W72/04 ,  H04B7/0413 ,  H04B7/06

Abstract: The present invention relates to a method and apparatus for feeding back channel state information in a wireless communication system supporting a three-dimensional multiple input multiple output (3D-MIMO) antenna. Specifically, the method comprises the steps of: receiving information on N beams, (where N is a natural number), precoded for specific antennas among a plurality of antennas constituting a 3D-MIMO antenna; selecting, from among the N beams, at least one specific beam for which to generate channel state information, and determining interference on the basis of M beams, (where M is a natural number, M≤N−1), among the remaining beams; and generating channel state information for the specific beam on the basis of the interference according to the M beams.

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：US10171154B2

公开(公告)日：2019-01-01

申请号：US15759372

申请日：2016-09-08

Applicant: LG ELECTRONICS INC.

Inventor： Hyungtae Kim ,  Kijun Kim

IPC: H04B7/00 ,  H04B7/06 ,  H04B7/04 ,  H04B7/0417 ,  H04W24/10

Abstract: Disclosed in the present application is a method by which a terminal reports a beam index to a base station in a wireless access system. The beam index reporting method comprises the steps of: receiving a plurality of reference signals from the base station; measuring a plurality of beams by using the plurality of reference signals; reporting an index of a first preferential beam among the plurality of beams to the base station; and reporting, to the base station, information on at least one second preferential beam determined on the basis of the first preferential beam, wherein the information on at least one second preferential beam is information on an index difference between the first preferential beam and the at least one second preferential beam.

公开(公告)号：US10171153B2

公开(公告)日：2019-01-01

申请号：US14891057

申请日：2014-06-05

Applicant: LG ELECTRONICS INC.

Inventor： Hyungtae Kim ,  Hyunho Lee ,  Jonghyun Park ,  Kijun Kim

IPC: H04B7/04 ,  H04L5/14 ,  H04B7/06 ,  H04B7/0456

Abstract: The present invention relates to a wireless communication system. A method for a terminal for transmitting channel state information (CSI) in a wireless communication system according to an embodiment of the present invention comprises the steps of: subsampling a first codebook associated with a first precoding matrix indicator (PMI) and a second codebook associated with a second PMI according to a reporting mode for a four-antenna port; and reporting the channel state information on the basis of the subsampled first codebook and second codebook, wherein a second codebook index for the second PMI may have any one index from a first index group if the first codebook index for the first PMI is an odd number, and if same is an even number, may have any one index from a second index group.

公开(公告)号：US10057002B2

公开(公告)日：2018-08-21

申请号：US15038393

申请日：2014-12-29

Applicant: LG ELECTRONICS INC.

Inventor： Hyungtae Kim ,  Kijun Kim ,  Jonghyun Park

IPC: H04J11/00 ,  H04B7/0456 ,  H04L5/00 ,  H04L1/00 ,  H04B7/024 ,  H04B7/06 ,  H04W28/04 ,  H04B7/0413

CPC classification number: H04J11/005 ,  H04B7/024 ,  H04B7/0413 ,  H04B7/0456 ,  H04B7/0626 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0639 ,  H04L1/00 ,  H04L1/1861 ,  H04L5/00 ,  H04L5/006 ,  H04L5/0091 ,  H04W28/04

Abstract: The present invention relates to a wireless communication system. A method for a terminal for removing interference and receiving a signal in a wireless communication system according to one embodiment of the present invention may comprises the steps of: receiving configuration information for channel status information; and reporting, to a base station, the channel status information, and an indicator of whether the channel status information has been calculated on the basis of network-assisted interference cancellation and suppression (NAICS).

公开(公告)号：US10033507B2

公开(公告)日：2018-07-24

申请号：US15319669

申请日：2015-07-21

Applicant: LG ELECTRONICS INC.

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

IPC: H04L5/00 ,  H04B7/04

Abstract: A method for reporting a channel state for a downlink channel to be transmitted via a two-dimensional array of antenna elements consisting of one or more horizontal antenna groups and vertical antenna groups in accordance with one embodiment of the present invention, the method being performed by a terminal, comprises the steps of: receiving a channel state information-reference signal (CSI-RS) configuration for at least one vertical antenna group and a CSI-RS configuration for at least one horizontal antenna group; and calculating channel state information on the downlink channel using the received CSI-RS configurations and transmitting the channel information to a serving cell, wherein the channel state information comprises individual channel state information for a channel of the at least one vertical antenna group (hereinafter, ‘vertical channel’) and a channel of the at least one horizontal antenna group (hereinafter, ‘horizontal channel’), a combination of the individual channel state information, or joint channel state information of the vertical channel and the horizontal channel, each of which is assigned transmission priority, and the channel state information can be transmitted according to the transmission priority.

公开(公告)号：US10021585B2

公开(公告)日：2018-07-10

申请号：US15031654

申请日：2014-11-07

Applicant: LG ELECTRONICS INC.

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

IPC: H04W24/10 ,  H04B17/24 ,  H04B17/309 ,  H04W4/06 ,  H04W24/08 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/06

CPC classification number: H04W24/10 ,  H04B7/0452 ,  H04B7/0478 ,  H04B7/065 ,  H04B17/24 ,  H04B17/309 ,  H04W4/06 ,  H04W24/08

Abstract: The present invention relates to a method and an apparatus for performing, by a terminal having multiple antennas, measurement reporting in a wireless communication system. In particular, the method comprises the steps of: receiving a multicast-broadcast single-frequency network (MBSFN) reference signal; performing a measurement for radio resource management for each of the multiple antennas, using the MBSFN reference signal; and reporting the result of the measurement, wherein the result of the measurement is determined on the basis of the measurement values of all diversity branches corresponding to the multiple antennas.

公开(公告)号：US09986545B2

公开(公告)日：2018-05-29

申请号：US14772903

申请日：2014-03-05

Applicant: LG Electronics Inc.

Inventor： Hyungtae Kim ,  Kijun Kim

IPC: H04W72/04 ,  H04L5/00 ,  H04L25/02

CPC classification number: H04W72/042 ,  H04L5/0023 ,  H04L5/0035 ,  H04L5/0039 ,  H04L5/0048 ,  H04L5/0094 ,  H04L25/0202

Abstract: The present invention relates to a wireless communications system. In a wireless communications system according to an embodiment of the present invention, a method for applying a PRB (Physical Resource Block) bundling by a first cell includes the steps of: receiving the traffic information of a second cell; determining a resource for the first and the second cell to apply the same PRB bundling; and transmitting the information of the resource.

公开(公告)号：US09985711B2

公开(公告)日：2018-05-29

申请号：US14891254

申请日：2014-08-04

Applicant: LG ELECTRONICS INC.

Inventor： Hyungtae Kim ,  Jonghyun Park ,  Kijun Kim

IPC: H04B7/216 ,  H04B7/06 ,  H04B7/0456 ,  H04L5/14

CPC classification number: H04B7/0639 ,  H04B7/0456 ,  H04B7/063 ,  H04B7/0658 ,  H04B7/066 ,  H04L5/14

Abstract: The present invention relates to a wireless communication system. A method for transmitting channel state information by a terminal in a wireless communication system according to an embodiment of the present invention includes the steps of: joint encoding a rank indicator (RI) and a first precoding matrix indicator (PMI) to a single encoded value, in a reporting mode for four antenna ports; and transmitting channel state information including the encoded value, wherein the encoded value is determined depending on a first table or a second table according to a maximum value of the RI, and an encoding value, which is identical to an encoding value according to the first table, among encoding values according to the second table, may have RI and first PMI identically corresponding to those of the encoding value according to the first table.