MIMO transmission apparatus and operating method thereof

    公开(公告)号:US12028132B2

    公开(公告)日:2024-07-02

    申请号:US17978559

    申请日:2022-11-01

    CPC classification number: H04B7/0456 H04B7/0617 H04B7/0634

    Abstract: An operating method of a wireless communication device includes calculating an effective channel matrix between the wireless communication device and a base station based on transmission characteristic information and channel information, the transmission characteristic information corresponding to the wireless communication device, and the channel information corresponding to a channel between the wireless communication device and the base station, determining a precoding matrix based on the effective channel matrix, and determining a transmission beamforming vector based on the precoding matrix.

    APPARATUS FOR MULTI-ANTENNA TRANSMISSION AND OPERATING METHOD THEREOF

    公开(公告)号:US20240162948A1

    公开(公告)日:2024-05-16

    申请号:US18508368

    申请日:2023-11-14

    CPC classification number: H04B7/0456 H04L5/0048

    Abstract: An operating method of a wireless communication user equipment may include transmitting a sounding reference signal (SRS) to a base station, receiving, from the base station, a transmit precoding matrix indicator (TPMI) indicating a precoding matrix and a rank indicator (RI) indicating a rank value, selecting a precoding matrix, based on the TPMI and the RI, allocating a gain to each of a plurality of transmission paths, based on the precoding matrix and loss information of each of the plurality of transmission paths, and transmitting a physical uplink shared channel (PUSCH) through the plurality of transmission paths.

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