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

    公开(公告)号:US11101856B2

    公开(公告)日:2021-08-24

    申请号:US16995376

    申请日:2020-08-17

    Abstract: A method for transmitting an uplink signal based on a codebook by a UE in a wireless communication system includes: receiving, from a base station, downlink control information (DCI) for determining a precoding matrix applied to transmission of the uplink signal; determining the precoding matrix applied to the transmission of the uplink signal from a codebook subset related to the transmission of the uplink signal based on the DCI; and transmitting, to the base station, the uplink signal based on the determined precoding matrix, I which based on that a difference between phase values applied to antenna ports for the transmission of the uplink signal is maintained in some antenna ports among all antenna port pairs, the codebook subset includes at least one specific precoding matrix applying different phase values to antenna ports included in all or some of the some antenna ports.

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

    公开(公告)号:US10931353B2

    公开(公告)日:2021-02-23

    申请号:US15754281

    申请日:2016-08-22

    Abstract: Disclosed are a method for transmitting or receiving channel state information in a wireless communication system and an apparatus therefor. Specifically, a method for transmitting channel state information by a terminal in the wireless communication system comprises the steps of: receiving interference measurement restriction information indicating a restriction of interference measurement from a base station; deriving an interference measurement based on a channel state information-interference measurement (CSI-IM) resource in only one first subframe in order to calculate a channel quality indicator (CQI); and reporting the CQI to the base station, wherein the interference restriction information may be independently set for each CSI-IM resource.

    Method for receiving data in wireless communication system, and apparatus therefor

    公开(公告)号:US10856323B2

    公开(公告)日:2020-12-01

    申请号:US16300481

    申请日:2017-05-10

    Abstract: Disclosed herein is a method for receiving downlink data in a wireless communication system which includes: receiving configuration of a higher layer parameter set for at least a part of control information for receiving the downlink data from an eNB; receiving first downlink control information (DCI) including only an indicator indicating whether to grant scheduling for the higher layer parameter set; and receiving the downlink data on the basis of control information indicated by the higher layer parameter set, when the first DCI indicates a grant of scheduling for the higher layer parameter set.

Patent Agency Ranking