METHOD FOR PERFORMING CSI REPORTING IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR

    公开(公告)号:EP3562056A1

    公开(公告)日:2019-10-30

    申请号:EP18881392.7

    申请日:2018-11-27

    Abstract: This specification provides a method for transmitting, by a user equipment (UE), a CSI (Channel State Information) report in a wireless communication system.
    More specifically, the method includes: receiving, from a base station, downlink control information (DCI) including information for triggering the CSI report; computing CSI based on the number of symbols related to a time for computing the CSI; and transmitting the CSI report to the base station, in which the number of symbols related to the time for computing the CSI is defined based on information for the number of antenna ports, information for a CSI-RS resource, information for a bandwidth granularity, and information for a CSI codebook type.

    METHOD FOR TRANSMITTING AND RECEIVING CHANNEL STATE INFORMATION IN WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREFOR

    公开(公告)号:EP3355484A1

    公开(公告)日:2018-08-01

    申请号:EP16849055.5

    申请日:2016-09-26

    CPC classification number: H04B7/0417 H04B7/0452 H04B7/06 H04W72/042

    Abstract: Disclosed are a method for transmitting and receiving channel state information in a wireless communication system and a device therefor. Specifically, a method for transmitting channel state information (CSI) by a terminal in a wireless communication system may comprise the steps of: receiving, from a base station, setting information for a single CSI process including a first channel state information-reference signal (CSI-RS) configuration, which is associated with K CSI-RS resources of a beamformed CSI-RS type, K being greater than one, and a second CSI-RS configuration, which is associated with one CSI-RS resource of the beamformed CSI-RS type; reporting, to the base station, an indicator indicating a CSI-RS resource selected from among the K CSI-RS resources; and reporting, to the base station, a channel quality indicator (CQI)/precoding matrix indicator (PMI)/rank indicator (RI) derived on the basis of the one CSI-RS resource.

    METHOD FOR REPORTING CHANNEL QUALITY INFORMATION IN TDD TYPE WIRELESS COMMUNICATION SYSTEM, AND DEVICE THEREFOR
    50.
    发明公开
    METHOD FOR REPORTING CHANNEL QUALITY INFORMATION IN TDD TYPE WIRELESS COMMUNICATION SYSTEM, AND DEVICE THEREFOR 审中-公开
    在TDD型无线通信系统中报告信道质量信息的方法及其装置

    公开(公告)号:EP3244549A1

    公开(公告)日:2017-11-15

    申请号:EP16735142.8

    申请日:2016-01-05

    CPC classification number: H04L5/0057 H04B7/0456 H04B7/06 H04B7/0632 H04L5/14

    Abstract: Disclosed is a method by which a terminal reports channel quality information (CQI) to a base station in a multi-antenna-based wireless communication system. Particularly, the method comprises the steps of: receiving, through an upper layer, the reference signal configuration defined by P number of antenna ports; receiving, through M number of antenna ports, reference signals from the base station; grouping the P number of antenna ports into antenna port groups formed of the M number of antenna ports; calculating CQIs by using the reference signal corresponding to each of the antenna port groups on the basis of the assumption that predefined precoders are applied to the reference signals; and reporting, to the base station, N number of CQIs among the calculated CQIs.

    Abstract translation: 公开了一种终端在基于多天线的无线通信系统中向基站报告信道质量信息(CQI)的方法。 具体地,该方法包括以下步骤:通过上层接收P个天线端口定义的参考信号配置; 通过M个天线端口接收来自基站的参考信号; 将P个天线端口分组为由M个天线端口组成的天线端口组; 基于预定预编码器被应用于参考信号的假设,通过使用与每个天线端口组对应的参考信号来计算CQI; 并向基站报告计算出的CQI中的N个CQI。

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