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    METHOD AND APPARATUS FOR CHANNEL STATE INFORMATION (CSI) ACQUISITION WITH DL AND UL REFERENCE SIGNALS
    9.
    发明公开
    METHOD AND APPARATUS FOR CHANNEL STATE INFORMATION (CSI) ACQUISITION WITH DL AND UL REFERENCE SIGNALS 审中-公开

    公开(公告)号：EP3998714A1

    公开(公告)日：2022-05-18

    申请号：EP21217844.6

    申请日：2018-03-23

    申请人： Samsung Electronics Co., Ltd.

    发明人： ONGGOSANUSI, Eko

    IPC分类号： H04B7/06 ,  H04L5/00 ,  H04W72/04 ,  H04B7/0456

    摘要： A user equipment, UE (116), in a wireless communication system, comprises a transceiver (310) and a processor (340) configured to receive, from the base station (101, 102, 103), configuration information on a non-zero power channel state information reference signal, CSI-RS, resource corresponding to a sounding reference signal, SRS, receive, from the base station (101, 102, 103), downlink control information including aperiodic SRS trigger information in case that the SRS corresponds to an aperiodic SRS, receive, from the base station, a non-zero power CSI-RS corresponding to the non-zero power CSI-RS resource, wherein the non-zero power CSI-RS resource is identified based on the aperiodic SRS trigger information, identify an uplink precoder for the SRS based on the received non-zero power CSI-RS, and transmit, to the base station, the SRS. In case that the non-zero power CSI-RS is an aperiodic CSI-RS, the downlink control information and CSI-RS are in a same slot.