Method for transmitting and receiving channel state information-reference signal in wireless communication system, and apparatus therefor

    公开(公告)号:US10931361B2

    公开(公告)日:2021-02-23

    申请号:US16317793

    申请日:2018-06-28

    Abstract: The present specification provides a method for transmitting and receiving channel state information (CSI) in a wireless communication system.
    More specifically, a method performed by a user equipment (UE) includes receiving a resource block from a base station based on a first spatial Quasi-Co location (QCL) related parameter related to reception of the resource block including at least one control channel, wherein when the resource block and the CSI-RS are configured on the same symbol, the first spatial QCL related parameter and a second spatial QCL related parameter configured for reception of the CSI-RS are equally configured; configuring a beam for receiving the CSI-RS based on the second spatial QCL related parameter; and receiving the CSI-RS from the base station through the configured beam.
    The present specification has an effect that a UE, in which a less number of Rx chains are implemented, can receive multiple CSI-RSs.

    Beam information reporting method for multi-user MIMO transmission in wireless communication system and apparatus therefor

    公开(公告)号:US10924956B2

    公开(公告)日:2021-02-16

    申请号:US16475610

    申请日:2018-01-03

    Abstract: Disclosed is a method by which a terminal reports beam information to a base station in a wireless communication system. The method comprises the steps of: receiving, from the base station, a beam measurement reference signal corresponding to each of a plurality of candidate transmission beams; determining at least one best transmission beam among the plurality of candidate transmission beams on the basis of the beam measurement reference signal; determining at least one worst transmission beam corresponding to each of the at least one best transmission beam among the plurality of candidate transmission beams by using a best reception beam corresponding to the at least one best transmission beam among candidate reception beams; reporting, to the base station, information on the at least one best transmission beam and the at least one worst transmission beam corresponding to the at least one best transmission beam.

    Method and apparatus for transmitting uplink data in wireless communication system

    公开(公告)号:US10887901B2

    公开(公告)日:2021-01-05

    申请号:US16090509

    申请日:2017-03-23

    Abstract: Provided are a method and an apparatus for transmitting uplink data in a wireless communication system. Specifically, a first terminal transmits a random access preamble for requesting a connectionless transmission. The first terminal receives a random access response comprising scheduling information of the uplink data. The first terminal transmits uplink data and a reference signal from a first resource configured on the basis of scheduling information of the uplink data and information indicating the CP length of the reference signal. The CP length of the reference signal can be configured to be identical to the CP length of the random access preamble. The first resource can correspond to a resource utilized by both the first terminal and second terminal.

    Method of transmitting and receiving channel state information in wireless communication system and apparatus therefor

    公开(公告)号:US10785669B2

    公开(公告)日:2020-09-22

    申请号:US16790126

    申请日:2020-02-13

    Abstract: A method of reporting channel state information by a UE in a wireless communication system is provided. Specifically, A method of transmitting, by a user equipment (UE), power measurement information related to beam reporting in a wireless communication system includes: receiving downlink control information (DCI) triggering reporting of the power measurement information; receiving a downlink reference signal for reporting of the power measurement information; and transmitting, to a base station, power measurement information determined based on the received downlink reference signal. A minimum required time for reporting of the power measurement information is (i) calculated as the sum of a first minimum required time from the last timing of the downlink reference signal to a transmission timing of the power measurement information and a second minimum required time between DCI triggering the downlink reference signal and reception of the downlink reference signal or (ii) calculated based on a pre-configured threshold value related to reporting of the power measurement information.

    Vehicle communication apparatus and vehicle

    公开(公告)号:US10779140B2

    公开(公告)日:2020-09-15

    申请号:US16568851

    申请日:2019-09-12

    Abstract: A vehicle communication apparatus includes a plurality of remote units (RUs) configured to transmit signals to a mobile communication network and to receive signals from the mobile communication network, and a central unit (CU) configured to provide data based on the signals received through the plurality of remote units to one or more devices located in a vehicle. The plurality of remote units includes an array antenna attached to a body of the vehicle.

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