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：US20190150174A1

公开(公告)日：2019-05-16

申请号：US16248365

申请日：2019-01-15

Applicant: LG Electronics Inc.

Inventor： Seonwook Kim ,  Suckchel Yang ,  Joonkui Ahn ,  Hanjun Park

IPC: H04W72/12

Abstract: The present invention discloses a method for transmitting or receiving ACK information between a UE and a BS in a wireless communication system and an apparatus for supporting the same. According to one embodiment applicable to the present invention, the UE may transmit a first type channel configured with 1 or 2 symbols and a second type channel configured with 4 or more symbols by configuring a transient period between first type channel transmission and second type channel transmission within a time period corresponding to the second type channel if the first type channel and the second type channel are continuous in a time domain.

公开(公告)号：US10231207B2

公开(公告)日：2019-03-12

申请号：US15507200

申请日：2015-08-26

Applicant: LG ELECTRONICS INC.

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

IPC: H04W4/00 ,  H04W64/00 ,  G01S5/02 ,  H04L5/00 ,  H04W24/10

Abstract: A method for receiving a reference signal for determining a position in a wireless communication system, according to one embodiment of the present invention, may comprise the steps of: receiving positioning reference signal (PRS)-related configuration information transmitted from a plurality of antenna ports; and measuring the PRS by using the PRS-related configuration information, wherein the PRS may be mapped by being multiplexed with resource elements (RE) of each of the plurality of antenna ports.

公开(公告)号：US10111213B2

公开(公告)日：2018-10-23

申请号：US15325964

申请日：2016-03-22

Applicant: LG ELECTRONICS INC.

Inventor： Hyunho Lee ,  Hanjun Park ,  Bonghoe Kim

IPC: H04W24/10 ,  H04W72/04 ,  H04W72/12 ,  G01S5/02 ,  G01S7/02 ,  G01S13/16

Abstract: A method for reporting a measurement result for determining a position in a wireless communication system, according to one embodiment of the present invention, is performed by a terminal and may comprise the steps of: receiving positioning reference signal (PRS)-related information comprising a position identifier of each of a plurality of base stations; performing a measurement on the PRSs transmitted by each of the plurality of base stations; if the position identifier of each of the plurality of base stations are identical to each other, selecting at least one measurement result among the measurement results for the PRSs; and reporting the selected measurement result to a serving base station.

公开(公告)号：US10027396B2

公开(公告)日：2018-07-17

申请号：US15343980

申请日：2016-11-04

Applicant: LG ELECTRONICS INC.

Inventor： Hanjun Park ,  Joonkui Ahn ,  Seonwook Kim ,  Suckchel Yang ,  Hanbyul Seo

IPC: H04W4/10 ,  H04B7/06 ,  H04B17/345 ,  H04L5/00 ,  H04W88/02 ,  H04W88/08 ,  H04W74/08 ,  H04L27/26 ,  H04J11/00

Abstract: The present invention discloses a channel state information (CSI) measurement method through which a user equipment (UE) recognizes a resource pattern applied to a current CSI measurement resource through blind detection or dynamic signaling and performs CSI measurement when an evolved Node B (eNB) or the UE performs LBT (Listen-Before-Talk) based signal transmission and the eNB transmits CSI measurement resources (e.g., CRS/CSI-RS/CSI-IM) by applying one of a plurality of resource patterns thereto, and a UE performing the same.

公开(公告)号：US10020920B2

公开(公告)日：2018-07-10

申请号：US15112971

申请日：2015-03-04

Applicant: LG ELECTRONICS INC.

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

IPC: H04W4/00 ,  H04L5/00 ,  H04B7/06 ,  H04B7/0413 ,  H04W72/04 ,  H04L27/26 ,  H04W88/08

CPC classification number: H04L5/0048 ,  H04B7/0413 ,  H04B7/0617 ,  H04B7/0626 ,  H04B7/0691 ,  H04L5/0023 ,  H04L5/0051 ,  H04L27/2613 ,  H04W72/046 ,  H04W88/08

Abstract: The present invention relates to a method and apparatus for transmitting a reference signal by a base station in a wireless communication system supporting multiple antennas. More specifically, the present invention comprises the steps of: transmitting a reference signal configuration including specific reference signal IDs configured to identify a plurality of antenna groups; transmitting at least one reference signal associated with the plurality of antenna groups; and receiving channel state information measured according to the at least one reference signal, wherein each antenna group includes a plurality of antennas which are grouped on the basis of a specific domain of the multiple antennas, and the plurality of antenna groups are configured to perform beamforming in different directions.

公开(公告)号：US09838899B2

公开(公告)日：2017-12-05

申请号：US14766718

申请日：2014-02-07

Applicant: LG ELECTRONICS INC.

Inventor： Hanjun Park ,  Hyungtae Kim ,  Jonghyun Park ,  Kijun Kim ,  Hanbyul Seo

IPC: H04W24/10 ,  H04L1/00 ,  H04J11/00 ,  H04L5/00 ,  H04B7/06 ,  H04W24/08 ,  H04W74/00 ,  H04W72/12

CPC classification number: H04W24/10 ,  H04B7/0626 ,  H04B7/0639 ,  H04J11/005 ,  H04L1/00 ,  H04L5/0057 ,  H04W24/08 ,  H04W72/1226 ,  H04W74/006

Abstract: A method and apparatus for reporting a downlink channel state are disclosed. The method for reporting channel state information (CSI) to a base station (BS) by a user equipment (UE) in a wireless communication system having frequency-selective inter-cell interference, includes: performing channel measurement in a frequency band configured for downlink channel measurement; and reporting downlink channel state information (CSI) in accordance with the downlink channel measurement, wherein the frequency band is independently configured for each information contained in the CSI, and thus the downlink channel measurement is performed in each information-specifically configured frequency band contained in the CSI. As a result, the method and apparatus can efficiently report downlink channel state information, such that a higher-quality communication environment is expected in a heterogeneous cell environment.

公开(公告)号：US09774430B2

公开(公告)日：2017-09-26

申请号：US14718846

申请日：2015-05-21

Applicant: LG ELECTRONICS INC.

Inventor： Hanjun Park ,  Kijun Kim ,  Jonghyun Park ,  Youngtae Kim ,  Hyunho Lee

IPC: H04L5/00 ,  H04B7/04

CPC classification number: H04L5/0048 ,  H04B7/0478 ,  H04L5/0023 ,  H04L5/0035

Abstract: A method for estimating a channel transmitted through a 2-dimensional (2D) array antenna by a user equipment (UE) in a wireless communication system comprising calculating channel estimation values for each of horizontal and vertical direction antenna arrays of the 2D array antenna in a channel state information-reference signal (CSI-RS) resource using a discrete Fourier transform (DFT) based channel estimation scheme, wherein the channel estimation values are expressed as one or more non-zero channel taps due to multipath fading; deriving channel vectors for each of the horizontal direction antenna arrays and channel vectors for each of the vertical direction antenna arrays using L significant power sums of filtered channel taps; and calculating channel vectors of the 2D array antenna by operating Kronecker product of the channel vectors for each of the horizontal direction antenna arrays and the channel vectors for each of the vertical direction antenna arrays.

公开(公告)号：US09735818B2

公开(公告)日：2017-08-15

申请号：US14913947

申请日：2014-10-27

Applicant: LG ELECTRONICS INC.

Inventor： Hyungtae Kim ,  Kijun Kim ,  Yunjung Yi ,  Byounghoon Kim ,  Hanjun Park ,  Hyunho Lee

IPC: H04B7/01 ,  H04B1/12

CPC classification number: H04B1/123 ,  H04B1/126

Abstract: The present invention relates to a wireless communication system. A method for cancelling interference and receiving a signal by a user equipment in a wireless communication system, the method performed by the user equipment comprising: receiving assistance information for cancelling an interference signal transmitted from an interfering base station; cancelling the interference signal based on the assistance information; and receiving a desired signal from a serving base station, wherein the user equipment assumes a part of the assistance information for cancelling the interference signal as a limited value and then receives the interference signal.

公开(公告)号：US09729292B2

公开(公告)日：2017-08-08

申请号：US15141523

申请日：2016-04-28

Applicant: LG ELECTRONICS INC.

Inventor： Hyungtae Kim ,  Eunsun Kim ,  Hanjun Park ,  Hanbyul Seo ,  Jonghyun Park ,  Kijun Kim

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

CPC classification number: H04L5/0048 ,  H04B7/024 ,  H04B7/0626 ,  H04L5/0005 ,  H04L5/0023 ,  H04L5/0035 ,  H04L5/0053 ,  H04L5/0057 ,  H04L5/0073 ,  H04L5/0094 ,  H04W72/042 ,  H04W72/0446

Abstract: The present invention relates to a wireless communication system. A method for receiving data by a user equipment (UE) in a cooperative multi-point (CoMP) wireless communication system includes receiving downlink control information (DCI) that does not contain information indicating a transmission base station (BS) that actually transmits data among a plurality of BSs that participate in CoMP, receiving information about zero-power channel state information-reference signal (CSI-RS) of each of the plural BSs, and assuming that data is not mapped to a resource element of zero-power CSI-RS with a lowest index and receiving the data through a physical downlink control channel (PDSCH).