Method for transmitting and receiving data in wireless communication system, and device therefor

    公开(公告)号:US10904874B2

    公开(公告)日:2021-01-26

    申请号:US16824990

    申请日:2020-03-20

    Abstract: The present invention relates to a method and device for operating a terminal in a wireless communication system. According to the present invention, downlink control information is transmitted to a terminal and can include symbol information related to the last symbol of a downlink shared channel. A method and device can be provided wherein a terminal transmits a first demodulation reference signal(DMSR) and at least one second DMRS for demodulating downlink data, and transmits data through the downlink shared channel, and a symbol position to which the at least one second DMRS is mapped is determined according to the symbol information.

    Method for mapping code word and layer in next generation communication system, and device therefor

    公开(公告)号:US10892821B2

    公开(公告)日:2021-01-12

    申请号:US16495823

    申请日:2018-03-20

    Abstract: The present application discloses a method for a terminal to receive a downlink signal including at least one code word in a wireless communication system. Particularly, the method is characterized by: a step of receiving a first code word, through a first number of layers, and a second code word, through a second number of layers, which have been newly transmitted from a base station; a step of transmitting, to the base station, a negative acknowledgement for one of the first code word and the second code word; and receiving, from the base station, a code word which has been re-transmitted in response to the negative acknowledgement, and a third code word which has been newly transmitted, wherein the number of layers for receiving the re-transmitted code word is equal to the number of layers involved in the new transmission thereof.

    Method for measuring and reporting channel state information in wireless communication system and device therefor

    公开(公告)号:US10856273B2

    公开(公告)日:2020-12-01

    申请号:US16578066

    申请日:2019-09-20

    Abstract: The present disclosure provides a method and an apparatus for measuring and reporting channel state information (CSI) in a wireless communication system. Specifically, a method for reporting CSI by a terminal in a wireless communication system comprises: a step of receiving CSI reporting setting information related to CSI reporting; a step of receiving one or more CSI-reference signals (CSI-RSs); and performing the CSI reporting by using a measurement value estimated by at least one specific CSI-RS among the one or more CSI-RSs, wherein the CSI reporting setting information includes gap information for setting a measurement gap for estimating the measurement value, and the at least one specific CSI-RS can be determined on the basis of the gap information and the time point of performing the CSI reporting.

    Method for reporting CSI in wireless communication system and apparatus therefor

    公开(公告)号:US10812236B2

    公开(公告)日:2020-10-20

    申请号:US16439111

    申请日:2019-06-12

    Abstract: This specification provides a method for transmitting, by a user equipment (UE), a CSI (Channel State Information) report in a wireless communication system. More specifically, the method includes: receiving, from a base station, downlink control information (DCI) including information for triggering the CSI report; computing CSI based on the number of symbols related to a time for computing the CSI; and transmitting the CSI report to the base station, in which the number of symbols related to the time for computing the CSI is defined based on information for the number of antenna ports, information for a CSI-RS resource, information for a bandwidth granularity, and information for a CSI codebook type.

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