CSI feedback and receiving methods, apparatus, device, and storage medium

    公开(公告)号:US12255718B2

    公开(公告)日:2025-03-18

    申请号:US18497539

    申请日:2023-10-30

    Abstract: Provided are CSI feedback and receiving methods, apparatuses, a device, and a storage medium. The method includes: a terminal determines PMI, the PMI includes at least one of: first base vector information, second base vector information, second coefficient amplitude information or phase information; for one transmission layer, a frequency domain resource in one preset frequency domain unit corresponds to one precoding vector, the precoding vector is a linear combination of first base vectors, and weighting coefficients used in the linear combination of the first base vectors are first coefficients; on multiple frequency domain units contained in a CSI feedback band, a vector composed of first coefficients corresponding to a same first base vector is a linear combination of second base vectors, and weighting coefficients used in the linear combination of the second base vectors are second coefficients; and the terminal feeds back CSI containing the PMI to a base station.

    INFORMATION FEEDBACK METHOD AND DEVICE, INFORMATION RECEIVING METHOD AND DEVICE, AND STORAGE MEDIUM

    公开(公告)号:US20250088223A1

    公开(公告)日:2025-03-13

    申请号:US18958521

    申请日:2024-11-25

    Abstract: Provided are an information feedback method and device, an information receiving method and device, and a storage medium. The information feedback method includes the following. Configuration information from a first communication node is received. Precoding matrix information is determined according to the configuration information, where a target frequency band of the precoding matrix information is determined through indication information of a precoding matrix information subband, and the precoding matrix information subband is determined according to the configuration information. The precoding matrix information is fed back to the first communication node.

    Uplink transmission method and device

    公开(公告)号:US12132674B2

    公开(公告)日:2024-10-29

    申请号:US17642494

    申请日:2020-09-11

    CPC classification number: H04L5/0048 H04W72/23

    Abstract: Provided are an uplink transmission method and device. The uplink transmission method is applied to a first communication node and includes: receiving a downlink reference signal sent by a second communication node and acquiring downlink channel information; sending an uplink reference signal by using the downlink channel information; monitoring downlink control signaling sent by the second communication node, where the downlink control signaling includes a sub-band SRS resource indication; and sending an uplink transmission channel according to scheduling of the downlink control signaling.

    INFORMATION MAPPING METHOD, INFORMATION ACQUISITION METHOD, TERMINAL DEVICE AND NETWORK DEVICE

    公开(公告)号:US20220030584A1

    公开(公告)日:2022-01-27

    申请号:US17489323

    申请日:2021-09-29

    Abstract: Provided are an information mapping method, an information acquisition method, a terminal device, and a network device. The information mapping method includes mapping at least one information domain of channel state information to at least one field of uplink control information, dividing the at least one field into a first partial field and a second partial field, generating a first bit sequence based on the first partial field, and generating a second bit sequence based on the second partial field.

    Information processing method and device, and storage medium

    公开(公告)号:US11082106B2

    公开(公告)日:2021-08-03

    申请号:US16089619

    申请日:2017-03-07

    Abstract: The present invention provides an information processing method, comprising: generating signaling comprising configuration information of channel state information process (CSI process); and sending the signaling comprising the configuration information of the CSI process. The present invention resolves the problem in the related art of being unable to use one CSI-RS resource overhead to meet the transmission requirements of multiple CSI-RSs having different port numbers, thereby achieving the technical effect of reducing resource overheads. The present invention also provides an information processing device and a storage medium.

    SIGNALING TRANSMITTING AND RECEIVING METHODS, DEVICE, NETWORK-SIDE DEVICE, TERMINAL AND STORAGE MEDIUM

    公开(公告)号:US20210195595A1

    公开(公告)日:2021-06-24

    申请号:US17194898

    申请日:2021-03-08

    Abstract: Provided is signaling transmitting and receiving methods, device, network-side device, terminal and storage medium. The signaling transmitting method includes: determining a first parameter set and/or a second parameter set for N resource groups; and transmitting an indication signaling, the indication signaling carries indication information for indicating the first parameter set and/or the second parameter set. The signaling receiving method includes: receiving an indication signaling transmitted by a network-side device. The indication signaling carries indication information for indicating a first parameter set and/or a second parameter set determined by the network-side device for N resource groups. The first parameter set is a Physical Downlink Shared Channel Resource Element (PDSCH RE) mapping set. The second parameter set is a Quasi-Co-Location (QCL) parameter set. N is a positive integer greater than 1.

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