METHOD FOR TRANSMITTING/RECEIVING CHANNEL STATE INFORMATION ON BASIS OF CODEBOOK HAVING HIGH RESOLUTION IN WIRELESS COMMUNICATION SYSTEM, AND APPARATUS THEREFOR

    公开(公告)号:US20210351824A1

    公开(公告)日:2021-11-11

    申请号:US17277791

    申请日:2019-09-20

    Abstract: Disclosed according to the present disclosure are a method for transmitting/receiving channel state information in a wireless communication system, and an apparatus therefor. Method for reporting channel state information by a user equipment comprises the steps of: receiving CSI reporting-related configuration information; wherein a report for at least one of aperiodic CSI, periodic CSI, or semi-persistent CSI is configured based on the CSI reporting-related configuration information, calculating first information and second information for a channel quality; wherein the first information is calculated by applying a precoding matrix indicator (PMI) included in latest aperiodically reported CSI, and the second information is calculated by applying the PMI at a time of calculation of the second information, and determining at least one of whether to transmit a flag and a value of the flag; and transmitting CSI to the base station based on the first information and the flag.

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

    公开(公告)号:US20210298038A1

    公开(公告)日:2021-09-23

    申请号:US17264794

    申请日:2019-08-01

    Abstract: Disclosed is a method for transmitting and receiving channel state information (CSI) in a wireless communication system, and an apparatus therefor. Specifically, in a method for reporting channel state information (CSI) by a user equipment (UE) in a wireless communication system, a plurality of BWPs are configured for the UE, and the plurality of BWPs include an activated first BWP and an inactivated second BWP, wherein the method may comprise the steps of: receiving, from a base station, information related to CSI for the second BWP on the first BWP; receiving a reference signal from the base station on the second BWP; performing a measurement on the basis of the reference signal; and transmitting, to the base station, CSI obtained on the basis of the measurement on the first BWP.

    METHOD FOR TRANSMITTING OR RECEIVING DOWNLINK SIGNAL AND DEVICE THEREFOR

    公开(公告)号:US20210266898A1

    公开(公告)日:2021-08-26

    申请号:US17056408

    申请日:2019-05-17

    Abstract: A method for receiving a downlink signal by a terminal in a wireless communication system is disclosed. In particular, the method may comprise: receiving a first downlink signal through a first component carrier on the basis of a particular reception beam; and receiving a second downlink signal through a second component carrier on the basis of the particular reception beam, wherein the first downlink signal and the second downlink signal correspond to different types, and the particular reception beam is determined on the basis of the first component carrier or the first downlink signal.

    METHOD FOR CHANNEL AND INTERFERENCE MEASUREMENT IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR

    公开(公告)号:US20210120444A1

    公开(公告)日:2021-04-22

    申请号:US16608623

    申请日:2018-04-27

    Abstract: A method for channel and interference measurement in a wireless communication system according to an embodiment of the present disclosure is performed by a terminal, and may comprise the steps of: receiving a resource configuration for channel and interference measurement from a base station, wherein a resource for the channel and interference measurement is shared with a plurality of terminals served by the base station; and performing channel and interference measurement on the basis of the received resource configuration for the channel and interference measurement, wherein the resource for the channel and interference measurement includes a resource in which a resource for channel measurement and a resource for interference measurement are configured in a fully or partially overlapping manner, and the fully or partially overlapping resource may be configured in units of antenna ports or antenna port groups, which correspond to the resource for channel measurement.

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

    公开(公告)号:US20210099272A1

    公开(公告)日:2021-04-01

    申请号:US17043850

    申请日:2019-04-02

    Abstract: A method for a base station to receive channel state information in a wireless communication system is disclosed. The method includes transmitting, to a plurality of user equipments (UEs), CSI-RS for calculating the channel state information; receiving, from the plurality of UEs, angular information related to a channel state between the base station and the plurality of UEs based on the CSI-RS; transmitting, to the plurality of UEs, configuration information for calculating the channel state based on the angular information, the configuration information including information determining an operation mode of the plurality of UEs; and receiving, from the plurality of UEs, the channel state information calculated based on the operation mode.

    METHOD OF REPORTING CHANNEL STATE INFORMATION IN WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREFOR

    公开(公告)号:US20210051508A1

    公开(公告)日:2021-02-18

    申请号:US16993964

    申请日:2020-08-14

    Abstract: Disclosed are a method of reporting channel state information (CSI) in a wireless communication system and a device therefor. Specifically, a method of reporting channel state information (CSI) by a user equipment (UE) in a wireless communication system includes receiving a reference signal from a base station (BS), calculating CSI based on the reference signal, wherein the CSI includes information related to coefficients, elements of the information related to the coefficients are classified into a plurality of groups based on priority values, respectively, and the priority values increase in order in which a higher index and a lower index of indices of a frequency domain associated with the elements sequentially alternate each other based on a predefined specific index, and transmitting, to the BS, a CSI reporting configured by omitting a specific group according to priorities of the plurality of groups.

    METHOD AND APPARATUS FOR UPLINK SIGNAL TRANSMISSION BASED ON CODEBOOK IN A WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20210050890A1

    公开(公告)日:2021-02-18

    申请号:US16993971

    申请日:2020-08-14

    Abstract: A method in which a UE transmits an uplink signal, based on a codebook, in a wireless communication system includes: receiving downlink control information (DCI) for determining a precoding matrix, which is applied to transmission of the uplink signal, from a base station; determining a precoding matrix that is applied to transmission of the uplink signal from a codebook subset related to transmission of the uplink signal, based on the DCI; and transmitting the uplink signal to the base station, based on the determined precoding matrix, in which, based on that differences of phase values applied to antenna ports for transmitting the uplink signal are changed in all pairs of antenna ports, the codebook subset includes at least one specific precoding matrix for full power transmission.

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