METHOD FOR TRANSCEIVING CHANNEL STATE INFORMATION AND APPARATUS THEREFOR IN MULTIPLE-ANTENNA WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20200280352A1

    公开(公告)日:2020-09-03

    申请号:US16810536

    申请日:2020-03-05

    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 FOR TRANSMITTING AND RECEIVING DATA IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR

    公开(公告)号:US20200228267A1

    公开(公告)日:2020-07-16

    申请号:US16338036

    申请日:2017-09-29

    Abstract: Provided is a method in which a user equipment (UE) receives data in a wireless communication system including receiving downlink control information related to downlink data transmission from at least one base station; determining receiving beams for simultaneously receiving the downlink data transmitted independently through a plurality of layer groups from a plurality of base stations including the at least one base station based on the downlink control information; and simultaneously receiving the downlink data from the plurality of base stations using the determined receiving beams, wherein the downlink control information includes beam index information about the receiving beams, and the beam index information is instructed for each of the plurality of layer groups.

    METHOD AND APPARATUS FOR TRANSMITTING OR RECEIVING REFERENCE SIGNAL IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20200220583A1

    公开(公告)日:2020-07-09

    申请号:US16636321

    申请日:2018-08-03

    Abstract: The present invention relates to a method and an apparatus for performing beam management by a terminal in a wireless communication system. The present invention may provide a method and an apparatus in which a terminal receives, from a base station, configuration information of channel state information (CSI)-RS, and receives the CSI-RS on the basis of the configuration information, wherein the CSI-RS is transmitted through a plurality of antenna ports, and the terminal configures a beam of each of the plurality of antenna ports on the basis of the CSI-RS, wherein the CSI-RS is mapped to subcarriers on a frequency axis at an interval of predetermined number of resource elements (REs), and the CSI-RS is repeatedly transmitted according to the interval of the predetermined number of REs within a specific time period.

    METHOD FOR REPORTING CHANNEL STATE INFORMATION IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR

    公开(公告)号:US20200212983A1

    公开(公告)日:2020-07-02

    申请号:US16816946

    申请日:2020-03-12

    Abstract: The present disclosure provides a method for reporting channel state information (CSI) in a wireless communication system. Specifically, a method for reporting, by a user equipment (UE), channel state information (CSI) in a wireless communication system includes: receiving, from a base station, control information related to a configuration of a channel state information reference signal (CSI-RS) resource, wherein the control information includes CDM type information representing a type of code division multiplexing (CDM) applied to the CSI-RS resource; receiving, from the base station, an X-port CSI-RS on one or more component CSI-RS resource element (RE) patterns; and reporting, to the base station, the CSI based on the received X-port CSI-RS. Accordingly, the present disclosure can flexibly provide CSI-RS resource locations.

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