公开(公告)号：US10009128B2

公开(公告)日：2018-06-26

申请号：US15114705

申请日：2015-03-03

Applicant: LG ELECTRONICS INC.

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

IPC: H04B17/309 ,  H04B17/382 ,  H04B7/06 ,  H04W24/10

CPC classification number: H04B17/309 ,  H04B7/024 ,  H04B7/0626 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0639 ,  H04B17/382 ,  H04J11/005 ,  H04W24/10

Abstract: Provided is a method for reporting a channel state, on which an interference cancellation performance is reflected, in a wireless communication system according to an embodiment of the present invention. The method may include: receiving, from a serving cell, a configuration for a channel state information (CSI) process (hereinafter, referred to as “enhanced CSI process”) for reporting the channel state on which the interference cancellation performance is reflected; receiving a signal at a CSI-interference measurement (CSI-IM) resource according to the enhanced CSI process; and calculating a value of the reporting of the channel state on which the interference cancellation performance is reflected, by removing an interference signal, which is from a specific interference cell among one or more interference cells.

公开(公告)号：US09986572B2

公开(公告)日：2018-05-29

申请号：US15313413

申请日：2015-07-21

Applicant: LG ELECTRONICS INC.

Inventor： Kijun Kim ,  Hyungtae Kim

IPC: H04W24/00 ,  H04W72/08 ,  H04W24/10 ,  H04B17/24 ,  H04B17/382 ,  H04B7/06 ,  H04L1/00 ,  H04L12/931

CPC classification number: H04W72/082 ,  H04B7/0626 ,  H04B17/24 ,  H04B17/382 ,  H04L1/0015 ,  H04L1/0026 ,  H04L5/005 ,  H04L5/0057 ,  H04L5/0073 ,  H04L49/20 ,  H04W24/10 ,  H04W52/243 ,  H04W52/40

Abstract: A method for reporting channel state information by a UE having an interference removal ability in a wireless communication system according to an embodiment of the present invention may comprise the steps of: receiving, from a serving cell, information for removal of interference by an adjacent cell; removing the interference or calculating the channel state information and transmitting the calculated channel state to the serving cell, wherein the information for removal of interference may comprise information indicating whether interference by a transmission signal of the adjacent cell exists in a CSI-interference measurement (IM) resource of the serving cell.

公开(公告)号：US09893856B2

公开(公告)日：2018-02-13

申请号：US15468398

申请日：2017-03-24

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 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 corresponding to the transmission BS and receiving the data through a physical downlink control channel (PDSCH).

公开(公告)号：US09806849B2

公开(公告)日：2017-10-31

申请号：US14957369

申请日：2015-12-02

Applicant: LG ELECTRONICS INC.

Inventor： Hyungtae Kim ,  Jonghyun Park

IPC: H04L1/00 ,  H04L5/00 ,  H04W76/04 ,  H04B7/06

CPC classification number: H04L1/0028 ,  H04B7/0626 ,  H04L1/0026 ,  H04L1/0031 ,  H04L5/005 ,  H04L5/0057 ,  H04W76/28

Abstract: A method of reporting channel state information (CSI) to a base station by a terminal in a wireless communication system is disclosed. Specifically, the method includes configuring feedback chains corresponding to a plurality of CSI-reference signals (RSs) through upper layer signaling, receiving the plurality of CSI-RSs from the base station, calculating a complete channel quality indicator (CQI) for a whole channel using the plurality of CSI-RSs and dividing the complete CQI into partial CQIs corresponding to the respective feedback chains, and reporting CSI items including the partial CQIs to the base station through the feedback chains.

公开(公告)号：US09787450B2

公开(公告)日：2017-10-10

申请号：US14383216

申请日：2013-08-28

Applicant: LG ELECTRONICS INC.

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

IPC: H04W24/10 ,  H04B7/04 ,  H04L5/00 ,  H04B7/0417

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：US09668275B2

公开(公告)日：2017-05-30

申请号：US14626107

申请日：2015-02-19

Applicant: LG Electronics Inc.

Inventor： Hanjun Park ,  Kijun Kim ,  Hyungtae Kim ,  Yunjung Yi ,  Suckchel Yang

IPC: H04W72/12 ,  H04L5/00

CPC classification number: H04W72/1231 ,  H04L5/0035 ,  H04L5/0055 ,  H04L5/0073 ,  H04W72/1273

Abstract: Disclosed is a method for reporting a channel state in a wireless communication system, the method performed by a terminal and including reporting channel state information (CSI) to a base station (BS), transmitting CSI correction information for correcting the reported CSI, to the BS, and receiving a downlink channel scheduled based on the CSI correction information, wherein the CSI correction information indicates a change in channel state due to dynamic interference.

公开(公告)号：US09660780B2

公开(公告)日：2017-05-23

申请号：US15203281

申请日：2016-07-06

Applicant: LG ELECTRONICS INC.

Inventor： Hyungtae Kim ,  Jonghyun Park ,  Kijun Kim

IPC: H04L5/00 ,  H04B7/04 ,  H04B7/0417 ,  H04B7/06 ,  H04W76/04 ,  H04W88/08

CPC classification number: H04W24/10 ,  H04B7/024 ,  H04B7/04 ,  H04B7/0417 ,  H04B7/0626 ,  H04B7/0658 ,  H04L5/0023 ,  H04L5/0035 ,  H04L5/0048 ,  H04L5/0057 ,  H04L5/0073 ,  H04L5/0082 ,  H04L5/0091 ,  H04L5/0094 ,  H04W76/27 ,  H04W88/08

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 CSI-RS (Channel State Information-Resource Signal) configuration information associated with the reference CSI configuration and a second CSI-RS configuration information associated with the following CSI configuration, number of CSI-RS antenna ports according to the second CSI-RS configuration information is same as number of CSI-RS antenna ports according to the first CSI-RS configuration information; and transmitting CSI determined based on at least one of the first CSI-RS configuration information and the second CSI-RS configuration information.

公开(公告)号：US09621319B2

公开(公告)日：2017-04-11

申请号：US14401809

申请日：2013-06-27

Applicant: LG ELECTRONICS INC.

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

IPC: H04B7/06 ,  H04L5/00 ,  H04B7/024 ,  H04L1/00 ,  H04W24/10

CPC classification number: H04L5/0053 ,  H04B7/024 ,  H04B7/0626 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0639 ,  H04B7/0647 ,  H04B7/066 ,  H04L1/0026 ,  H04L1/0027 ,  H04L5/0057 ,  H04W24/10

Abstract: A method for feeding back Channel State Information (CSI) using a common subband at a user equipment in a wireless communication system is disclosed. The method includes transmitting first CSI to at least one base station at a first transmission time point according to a first CSI feedback configuration, and transmitting second CSI to the at least one base station at a second transmission time point according to a second CSI feedback configuration, wherein the second CSI is generated based on the common subband when the second transmission time point is within a prescribed SubFrame Threshold (SFT) from the first transmission time point.

公开(公告)号：US09602183B2

公开(公告)日：2017-03-21

申请号：US14385095

申请日：2013-03-14

Applicant: LG ELECTRONICS INC.

Inventor： Kijun Kim ,  Jonghyun Park ,  Illsoo Sohn ,  Hyungtae Kim

IPC: H04W24/10 ,  H04B7/06 ,  H04L1/00 ,  H04B7/02

CPC classification number: H04B7/0626 ,  H04B7/024 ,  H04B7/0619 ,  H04L1/0026 ,  H04L1/0077 ,  H04L2001/0092 ,  H04W24/10

Abstract: One embodiment of the present invention is a method for reporting channel state information by means of a terminal in a wireless communication system, the method comprising: a step of measuring a channel using at least one channel state information-reference signal (CSI-RS) indicated by at least one feedback type index from among a plurality of feedback type indices; and a step of generating channel state information based on the channel measurement and reporting the channel state information. Each of the plurality of feedback type indices indicates one or more CSI-RS configurations to be used in channel estimation and an effective channel relating to said one or more CSI-RS configurations.

公开(公告)号：US20170041113A1

公开(公告)日：2017-02-09

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: H04L5/00 ,  H04B7/04

CPC classification number: H04L5/0048 ,  H04B7/04 ,  H04B7/0456 ,  H04B7/0482 ,  H04B7/06 ,  H04B7/0617 ,  H04B7/063 ,  H04B7/0634 ,  H04B7/0639 ,  H04L5/005 ,  H04L5/0051 ,  H04L5/0057

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.

Abstract translation: 根据本发明实施例的通过M二维排列的M个天线端口发送的下行链路信道上的信道状态报告方法可以由终端执行，并且包括：接收信道状态信息参考信号 CSI-RS）通过对二维布置的M个天线端口的一组垂直天线施加波束形成而形成的N个虚拟天线端口的设置，以及通过使用所接收到的信号来计算下行链路信道上的信道状态信息的步骤 CSI-RS设置，用于将信道状态信息报告给服务小区，其中所报告的信道状态信息可以包括关于与在单个向量中正交的Q个单位向量的组合相关的码本的第一码字的旋转变换的信息 N维空间。