公开(公告)号：US10433293B2

公开(公告)日：2019-10-01

申请号：US15638253

申请日：2017-06-29

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/04 ,  H04L5/00 ,  H04L1/00 ,  H04L1/06

Abstract: A method for receiving a downlink signal according to a Demodulation Reference Signal (DMRS)-based transmission scheme, performed by a mobile terminal, in a wireless communication system is disclosed. The method includes receiving indication information indicating whether rate matching or timewise Resource Element (RE) pairing is allowed for REs that do not constitute frequency-wise RE pairs for Space Frequency Block Coding (SFBC) on symbols to which DMRSs are mapped in a Resource Block (RB) for a DL data channel, and decoding the downlink data channel, on assumption that the REs that do not constitute frequency-wise RE pairs for SFBC are rate-matched, or constitute time-wise RE pairs to which transmission data is mapped, according to the indication information.

公开(公告)号：US10432286B2

公开(公告)日：2019-10-01

申请号：US15623767

申请日：2017-06-15

Applicant: LG ELECTRONICS INC.

Inventor： Hyungtae Kim ,  Byounghoon Kim ,  Kijun Kim

IPC: H04B7/06 ,  H04B7/024 ,  H04B7/0456 ,  H04L5/00 ,  H04L1/00 ,  H04L25/03

Abstract: The present invention relates to a method for receiving a reference CSI configuration information and a following CSI configuration information which is configured to report a same RI (Rank Indicator) as the reference CSI configuration information, receiving a first precoding codebook subset information for the reference CSI configuration information and a second precoding codebook subset information for the following CSI configuration information, set of RIs according to the second precoding codebook subset information is same as set of RIs according to the first precoding codebook subset information, and transmitting CSI determined based on at least one of the first precoding codebook subset information and the second preceding codebook subset information.

公开(公告)号：US10419172B2

公开(公告)日：2019-09-17

申请号：US15736438

申请日：2016-06-13

Applicant: LG ELECTRONICS INC.

Inventor： Hyungtae Kim ,  Kijun Kim ,  Inkwon Seo ,  Seokmin Shin

IPC: H04L5/00 ,  H04W88/08 ,  H04W52/28 ,  H04W72/04 ,  H04W72/08 ,  H04W52/14 ,  H04W52/34 ,  H04W52/24

Abstract: The present application discloses a method for transmitting a downlink signal by a base station in a wireless communication system. Particularly, the method comprises the steps of: distributing a total transmission power with respect to data for a short range user equipment (UE) and data for a long range UE; and transmitting the data for the short range UE through a plurality of layers, and transmitting the data for the long range UE through at least one of the plurality of layers, using the distributed transmission power, wherein the data for the short range UE and the data for the long range UE are transmitted through the same time resource and the same frequency resource, and a transmission power of the data for the short range UE distributed for each of the plurality of layers has an equal value.

公开(公告)号：US10374837B2

公开(公告)日：2019-08-06

申请号：US15737971

申请日：2016-07-06

Applicant: LG ELECTRONICS INC.

Inventor： Hyungtae Kim ,  Kijun Kim

IPC: H04L25/02 ,  H04L5/00 ,  H04L25/03 ,  H04W72/04 ,  H04L1/00 ,  H04W76/27

Abstract: Disclosed is a method for estimating a channel by a first terminal in a wireless communication system. Particularly, the method comprises the steps of: obtaining information associated with whether a first pre-coder for the first terminal and a second pre-coder for a second terminal are identical to each other; estimating, as a single effective channel, a first effective channel between a base station and the first terminal and a second effective channel between the base station and the second terminal when the first pre-coder and the second pre-coder are identical to each other; individually estimating the first effective channel and the second effective channel when the first pre-coder and the second pre-coder are different from each other.

公开(公告)号：US10263671B2

公开(公告)日：2019-04-16

申请号：US15760063

申请日：2016-12-27

Applicant: LG ELECTRONICS INC.

Inventor： Hyungtae Kim ,  Jonghyun Park ,  Haewook Park

IPC: H04B7/0417 ,  H04B7/04 ,  H04B7/06 ,  H04B7/0456 ,  H04L5/00 ,  H04W72/02 ,  H04W72/04 ,  H04W72/08

Abstract: A method for reporting channel status information (CSI) to a base station by a terminal in a wireless access system is disclosed in the present application. The method comprises the steps of: receiving information on one CSI process including a plurality of reference signal resources from the base station; receiving reference signals corresponding to the plurality of reference signal resources from the base station; selecting two or more reference signal resources among the plurality of reference signal resources on the basis of the received reference signals; and reporting the CSI corresponding to the one CSI process to the base station, wherein the CSI includes indicators indicating the two or more reference signal resources.

公开(公告)号：US10178574B2

公开(公告)日：2019-01-08

申请号：US15304379

申请日：2015-04-30

Applicant: LG ELECTRONICS INC.

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

IPC: H04W24/10 ,  H04L5/00 ,  H04B17/345 ,  H04W72/04 ,  H04W52/24 ,  H04W52/36 ,  H04W52/40

Abstract: A method for reporting a channel state in a wireless communication system is performed by a terminal and comprises the steps of: receiving a configuration with respect to a zero-power transfer resource for a channel state measurement, wherein the zero-power transmission resource corresponds to a portion of a cell-specific reference signal (CRS) resource element (RE) of a serving base station or a CRS RE of a main interference base station; determining whether the zero-power transfer resource is set in a subframe to which a reference resource for the channel state measurement belongs; if the zero-power transfer resource is set in the subframe to which the reference resource belongs, calculating a value of a first-type or second-type channel state in the zero-power transfer resource; and reporting the calculated value of the first-type or second-type channel state to the serving base station, wherein the value of the first-type or second-type channel state can be a value from which the influence of an interference signal from the main interference base station has been removed.

公开(公告)号：US10171212B2

公开(公告)日：2019-01-01

申请号：US15303894

申请日：2015-07-03

Applicant: LG Electronics Inc.

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

IPC: H04B7/00 ,  H04L5/00 ,  H04B7/04 ,  H04B7/06 ,  H04B7/0456

Abstract: A method for reporting a channel state on a downlink channel transmitted through M antenna ports that are 2-dimensionally arranged according to an embodiment of the present invention may be performed by a terminal and include a step of receiving a channel state information-reference signal (CSI-RS) setting for N virtual antenna ports that are formed by applying beam-forming to a group of vertical antennas of the 2-dimensionally arranged M antenna ports, and a step of calculating channel state information on the downlink channel by using the received CSI-RS setting to report the channel state information to a serving cell, wherein the reported channel state information may include information on a rotational transformation related to a first code word of a codebook related to a combination of Q unit vectors that are orthogonal in an N dimension space.

公开(公告)号：US10135514B2

公开(公告)日：2018-11-20

申请号：US15343711

申请日：2016-11-04

Applicant: LG ELECTRONICS INC.

Inventor： Kijun Kim ,  Hyungtae Kim ,  Hanbyul Seo ,  Daewon Lee

IPC: H04B7/24 ,  H04B7/06 ,  H04W76/27 ,  H04B7/024 ,  H04J11/00 ,  H04L5/00 ,  H04W24/08 ,  H04W72/04 ,  H04W72/08 ,  H04L25/03 ,  H04W88/02 ,  H04W88/08

Abstract: A method and a mobile station for transmitting channel state information (CSI) to a base station; and a method and a base station for receiving CSI from a mobile station in a wireless communication system are discussed. The method according to an embodiment includes receiving first information on one or more channel quality measurement resources and second information on one or more interference measurement resources from a base station; receiving reference signals based on the first information from the base station; generating the CSI by using the reference signals and the second information; and transmitting the CSI to the base station.

公开(公告)号：US10057031B2

公开(公告)日：2018-08-21

申请号：US15692402

申请日：2017-08-31

Applicant: LG ELECTRONICS INC.

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

IPC: H04L5/00 ,  H04B7/0417 ,  H04B7/04 ,  H04B7/0456

CPC classification number: H04L5/0051 ,  H04B7/0417 ,  H04B7/0486 ,  H04L5/0016 ,  H04L5/0023 ,  H04L5/0026 ,  H04L5/0048 ,  H04L5/005 ,  H04L5/0053 ,  H04L5/0073 ,  H04L5/0091

Abstract: The present invention relates to a wireless communication system. A method for estimating a channel by a user equipment (UE) in a wireless communication system includes receiving information about at least one channel station information (CSI) configuration for reporting CSI of one of a plurality of serving cells, determining that the same precoding matrix is applied to a plurality of resource blocks when all of the at least one CSI configuration is configured to report a precoding matrix indicator (PMI) and a rank indicator (RI), and determining that the precoding matrix is applied to one resource block when CSI configuration configured not to report the PMI and the RI is present among the at least one CSI configuration, and estimating a channel based on a result of the determination.

公开(公告)号：US10051615B2

公开(公告)日：2018-08-14

申请号：US14430087

申请日：2013-09-23

Applicant: LG ELECTRONICS INC.

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

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

Abstract: A method by which a user equipment receives a downlink control signal in a wireless communication system supporting carrier aggregation (CA) and coordinated multiple-point transmission and reception (CoMP), according to one embodiment of the present invention, comprises the steps of: receiving candidate sets of control information for the CA and the CoMP from a downlink serving base stations; and receiving an indicator for indicating one of the candidate sets from the downlink serving base station, wherein the candidate sets of the control information comprise a usable set of control information with respect to each carrier wave, and the control information can include information on carrier waves scheduled by the downlink serving base station, information on channel state information-reference signal antenna port(s) that is (are) quasi co-located (QCL) assumable with demodulation-reference signal antenna port(s) of the downlink serving base station, information on PDCH resource element (RE) mapping and/or information indicating whether or not QCL assumption between the channel state information-reference signal antenna port(s) and antenna port(s) indicated by the information on PDSCH RE mapping is possible.