Method and apparatus for uplink signal transmission based on codebook in a wireless communication system

    公开(公告)号:US11843432B2

    公开(公告)日:2023-12-12

    申请号:US17361740

    申请日:2021-06-29

    CPC classification number: H04B7/0486 H04B7/0626 H04B7/0639 H04W72/23

    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.

    Method for reporting channel state information and device therefor

    公开(公告)号:US11736169B2

    公开(公告)日:2023-08-22

    申请号:US17262645

    申请日:2019-07-23

    CPC classification number: H04B7/0626 H04B7/0639 H04B17/318 H04L5/0051

    Abstract: Disclosed is a method for reporting channel state information by a terminal in a wireless communication system. More particularly, the method is characterized by: receiving information relating to an integrated channel state information-reference signal (CSI-RS) resource set including a plurality of CSI-RS resource groups; receiving information relating to CSI reporting setting associated with the integrated CSI-RS resource set; and reporting CSI for the integrated CSI-RS resource set based on the CSI reporting setting, wherein each of the plurality of CSI-RS resource groups can includes a plurality of CSI-RS resources.

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