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    METHOD FOR TRANSCEIVING CHANNEL STATE INFORMATION AND APPARATUS THEREFOR IN MULTIPLE-ANTENNA WIRELESS COMMUNICATION SYSTEM
    111.
    发明申请
    METHOD FOR TRANSCEIVING CHANNEL STATE INFORMATION AND APPARATUS THEREFOR IN MULTIPLE-ANTENNA WIRELESS COMMUNICATION SYSTEM 审中-公开

    公开(公告)号：US20190132031A1

    公开(公告)日：2019-05-02

    申请号：US16079079

    申请日：2017-02-23

    Applicant: LG ELECTRONICS INC.

    Inventor： Haewook PARK ,  Jonghyun PARK ,  Kijun KIM ,  Hyungtae KIM

    IPC: H04B7/0456 ,  H04B7/06

    Abstract: A method and an apparatus for transmitting and receiving channel state information in a multi-antenna wireless communication system are disclosed. Specifically, a method for reporting channel state information (CSI), by a User Equipment (UE), in a multi-antenna wireless communication system, the method comprising receiving, from a base station, configuration information for single CSI reporting in which a non-precoded CSI-RS based CSI reporting and a beamformed CSI-RS based CSI reporting are combined, reporting a first Precoding Matrix Indicator (PMI) and/or a first Rank Indicator (RI) derived based on a non-precoded CSI-RS to the base station, and reporting a Channel Quality Indicator (CQI), a second PMI, and a second RI based on a beamformed CSI-RS to the base station, wherein a value of the first RI is determined as only a value belonging to a previously determined set.

    METHOD OF CONFIGURING REFERENCE SIGNAL FOR OPEN-LOOP MULTI-ANTENNA TRANSMISSION IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR
    113.
    发明申请
    METHOD OF CONFIGURING REFERENCE SIGNAL FOR OPEN-LOOP MULTI-ANTENNA TRANSMISSION IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR 审中-公开

    公开(公告)号：US20180123647A1

    公开(公告)日：2018-05-03

    申请号：US15667970

    申请日：2017-08-03

    Applicant: LG ELECTRONICS INC.

    Inventor： Hyungtae KIM

    IPC: H04B7/02 ,  H04W72/04 ,  H04L1/06

    Abstract: A method of receiving a downlink channel, which is received by a user equipment from an eNB in a wireless communication system, is disclosed in the present specification. Specifically, the method includes the steps of receiving a downlink control channel for receiving a DM-RS (demodulation reference signal) based downlink data channel from the eNB, and receiving the DM-RS based downlink data channel using DM-RS configuration information included in the downlink control channel. In this case, if single-codeword transmission via the DM-RS based downlink data channel is indicated by the downlink control channel, the DM-RS based downlink data channel is received using a transmission diversity scheme. If two-codewords transmission via the DM-RS based downlink data channel is indicated by the downlink control channel, the DM-RS based downlink data channel is received using a spatial multiplexing scheme.

    METHOD AND DEVICE FOR TRANSMITTING CHANNEL STATE INFORMATION IN WIRELESS COMMUNICATION SYSTEM
    116.
    发明申请
    METHOD AND DEVICE FOR TRANSMITTING CHANNEL STATE INFORMATION IN WIRELESS COMMUNICATION SYSTEM 审中-公开

    公开(公告)号：US20170207842A1

    公开(公告)日：2017-07-20

    申请号：US15480140

    申请日：2017-04-05

    Applicant: LG ELECTRONICS INC.

    Inventor： Hyungtae KIM ,  Kijun KIM

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

    Abstract: The present invention relates to a wireless communication system. A method for transmitting channel state information (CSI) in a wireless communication system, according to one embodiment of the present invention, comprises steps of: subsampling a codebook for a four-antenna port including 16 precoding matrices; and performing feedback for the CSI on the basis of a subsampled codebook, wherein when a rank indicator (RI) is four, a subsampled codebook includes, from 16 precoding matrices, a first precoding matrix having index 0, a third precoding matrix having index 2, a ninth precoding matrix having index 8, and an eleventh precoding matrix having index 10.

    METHOD FOR REPORTING CHANNEL STATE REFLECTING INTERFERENCE CANCELLATION PERFORMANCE AND APPARATUS FOR SAME
    120.
    发明申请
    METHOD FOR REPORTING CHANNEL STATE REFLECTING INTERFERENCE CANCELLATION PERFORMANCE AND APPARATUS FOR SAME 有权
    报告通道状态干扰消除性能的方法及其设备

    公开(公告)号：US20160344487A1

    公开(公告)日：2016-11-24

    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 ,  H04W24/10 ,  H04B7/06

    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.

    Abstract translation: 提供了一种在根据本发明的实施例的无线通信系统中报告在其上反映干扰消除性能的信道状态的方法。 该方法可以包括：从服务小区接收用于报告反映干扰消除性能的信道状态的信道状态信息（CSI）处理（以下称为“增强型CSI过程”）的配置; 根据增强的CSI过程在CSI干扰测量（CSI-IM）资源处接收信号; 以及通过从一个或多个干扰小区之中的特定干扰小区中去除干扰信号来计算反映干扰消除性能的信道状态的报告值。

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