公开(公告)号：US10142004B2

公开(公告)日：2018-11-27

申请号：US15540877

申请日：2015-12-18

Applicant: LG ELECTRONICS INC. ,  SOGANG UNIVERSITY RESEARCH FOUNDATION

Inventor： Jonghyun Park ,  Hosik Kang ,  Junyeub Suh ,  Wonjin Sung ,  Kijun Kim

IPC: H04B7/06 ,  H04B7/0456 ,  H04L25/02 ,  H04L25/03 ,  H04B7/024

Abstract: A method for performing, by a UE, precoding using a codebook in a wireless communication system includes: receiving a reference signal for channel estimation from an eNB; estimating a channel through the received reference signal; determining a precoding matrix related to the estimated channel in a codebook; and feeding back, to the eNB, a precoding matrix index (PMI) corresponding to the determined precoding matrix, wherein the codebook is generated in consideration of at least one of a region to which the UE belongs and the position of the UE.

公开(公告)号：US10027395B2

公开(公告)日：2018-07-17

申请号：US14913641

申请日：2014-10-24

Applicant: LG ELECTRONICS INC. ,  SOGANG UNIVERSITY RESEARCH FOUNDATION

Inventor： Jonghyun Park ,  Yoonsoo Kim ,  Wonjin Sung ,  Jihoon Sung ,  Hosik Kang

IPC: H04B7/06 ,  H04L5/00 ,  H04B7/0456 ,  H04B7/0417 ,  H04W24/08

Abstract: A method and device for reporting channel state information in a wireless communication system is disclosed. The method for reporting channel state information (CSI) by means of a terminal in a wireless communication system according to an embodiment of the present invention includes: measuring a first reference signal transmitted from a first subset of antenna ports from among a plurality of antenna ports in a base station; measuring a second reference signal transmitted from a second subset of antenna ports from among the plurality of antenna ports; and reporting the CSI to the base station based on at least one of the measurement of the first reference signal and the measurement of the second reference signal, wherein at least one of the plurality of antenna ports is included in both the first subset and the second subset.

公开(公告)号：US10116371B2

公开(公告)日：2018-10-30

申请号：US14914126

申请日：2014-10-24

Applicant: LG Electronics Inc.

Inventor： Jonghyun Park ,  Yoonsoo Kim ,  Wonjin Sung ,  Hosik Kang ,  Jihoon Sung

IPC: H04B7/04 ,  H04B7/06 ,  H04L5/00 ,  H04B7/0456 ,  H04B7/0417 ,  H04W24/08

Abstract: Disclosed are a method for reporting channel state information in a wireless communication system and an apparatus therefor. A method by which user equipment reports channel state information (CSI) in a wireless communication system, according to one embodiment of the present invention, comprises the steps of: receiving, from a base station, an RRC message including at least one CSI-reference signal (CSI-RS) configuration for a first direction domain; respectively receiving through different subframes, a first CSI-RS from a first subset and a second CSI-RS from a second subset among a plurality of physical antenna elements in the base station on the basis of the CSI-RS configuration; and performing a CSI report by using the first and second CSI-RSs, wherein when the CSI-RS configuration for the first direction domain is one, the first CSI-RS and the second CSI-RS are respectively received from the first subset and the second subset by virtualization-varying antenna ports related to one CSI-RS configuration in a predetermined period.

公开(公告)号：US20160211902A1

公开(公告)日：2016-07-21

申请号：US14914126

申请日：2014-10-24

Applicant: LG Electronics Inc.

Inventor： Jonghyun Park ,  Yoonsoo Kim ,  Wonji Sung ,  Hosik Kang ,  Jihoon Sung

IPC: H04B7/06 ,  H04B7/04 ,  H04L5/00

CPC classification number: H04B7/0626 ,  H04B7/0417 ,  H04B7/0456 ,  H04B7/0478 ,  H04B7/0628 ,  H04L5/0023 ,  H04L5/0048 ,  H04W24/08

Abstract: Disclosed are a method for reporting channel state information in a wireless communication system and an apparatus therefor. A method by which user equipment reports channel state information (CSI) in a wireless communication system, according to one embodiment of the present invention, comprises the steps of: receiving, from a base station, an RRC message including at least one CSI-reference signal (CSI-RS) configuration for a first direction domain; respectively receiving through different sub-frames, a first CSI-RS from a first subset and a second CSI-RS from a second subset among a plurality of physical antenna elements in the base station on the basis of the CSI-RS configuration; and performing a CSI report by using the first and second CSI-RSs, wherein when the CSI-RS configuration for the first direction domain is one, the first CSI-RS and the second CSI-RS are respectively received from the first subset and the second subset by virtualization-varying antenna ports related to one CSI-RS configuration in a predetermined period.

Abstract translation: 公开了一种用于在无线通信系统及其装置中报告信道状态信息的方法。 根据本发明的一个实施例的用户设备在无线通信系统中报告信道状态信息（CSI）的方法包括以下步骤：从基站接收包括至少一个CSI参考的RRC消息 信号（CSI-RS）配置; 基于所述CSI-RS配置，分别从所述基站中的多个物理天线元件中分别接收来自第一子集的第一CSI-RS和来自所述基站中的多个物理天线元素中的第二子集的第二CSI-RS; 以及通过使用第一和第二CSI-RS来执行CSI报告，其中当第一方向域的CSI-RS配置为1时，分别从第一子集接收第一CSI-RS和第二CSI-RS，并且 第二子集由在预定周期内与一个CSI-RS配置相关的虚拟化变化的天线端口。