OPERATING METHOD FOR IAB NODE IN WIRELESS COMMUNICATION SYSTEM, AND DEVICE USING METHOD

    公开(公告)号:US20220345285A1

    公开(公告)日:2022-10-27

    申请号:US17772070

    申请日:2020-11-02

    Abstract: Provided are an operating method for an IAB node including a DU and an MT in a wireless communication system, and a device. The method receives first resource direction information about the DU and second resource direction information about the MT, wherein each of the first and second resource direction information indicates the direction of each resource as being downlink, uplink or flexible. The IAB node determines, for a certain resource from among the resources, whether the DU and the MT can operate at the same time on the basis of the direction indicated by the first resource direction information and the direction indicated by the second resource direction information.

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

    公开(公告)号:US11296767B2

    公开(公告)日:2022-04-05

    申请号:US17050426

    申请日:2019-05-07

    Abstract: A method for reporting channel state information (CSI) in a wireless communication system is disclosed. More specifically, the method performed by a user equipment (UE) includes receiving, from a base station, configuration information related to the channel state information, wherein the configuration information includes a number of a plurality of subbands allocated to the UE; measuring parameter values related to a channel state of one or more subbands of the plurality of subbands based on the configuration information; and reporting, to the base station, channel state information of the one or more subbands including the measured parameter values, wherein a number of the one or more subbands is determined based on a value of a rank indicator (RI).

    Codebook-based signal transmission/reception method in multi-antenna wireless communication system, and device for same

    公开(公告)号:US11296758B2

    公开(公告)日:2022-04-05

    申请号:US16419694

    申请日:2019-05-22

    Abstract: Disclosed are a codebook-based signal transmission and reception method in a multi-antenna wireless communication system and an apparatus therefor. Specifically, a method for transmitting or receiving a signal on the basis of a codebook by a terminal in a 2-dimensional multi-antenna wireless communication system comprises the steps of: receiving a channel state information reference signal (CSI-RS) through a multi-antenna port from a base station; and reporting channel state information to the base station, wherein the channel state information may include a precoding matrix indicator (PMI) for indicating a precoding matrix, the PMI may include a first PMI for selecting a set of precoding matrixes from the codebook and a second PMI for selecting one precoding matrix from the set of precoding matrixes.

    METHOD BY WHICH BASE STATION TRANSMITS SIGNAL ON BASIS OF ANTENNA ARRAY IN WIRELESS COMMUNICATION SYSTEM, AND APPARATUS THEREFOR

    公开(公告)号:US20220021428A1

    公开(公告)日:2022-01-20

    申请号:US17295991

    申请日:2019-11-14

    Abstract: A method by which a base station transmits a signal on the basis of an antenna array in a wireless communication system, according to an embodiment of the present invention, comprises the steps of: determining a multi-rank beam in consideration of (i) positions of a plurality of terminals and (ii) positions of null points of a beam generated through the antenna array; and transmitting signals to the plurality of terminals by using the multi-rank beam. The antenna array may be based on a three-dimensional shape having omnidirectional symmetry, and the positions of the null points and the positions of the plurality of terminals may be configured on the basis of a polar coordinate system using the center of the antenna array as an origin point.

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