Transmission mode indication method and device, base station, terminal

    公开(公告)号:US12261696B2

    公开(公告)日:2025-03-25

    申请号:US17641428

    申请日:2020-06-28

    Abstract: A transmission mode indication method and device, a base station, a terminal and a storage medium are provided. The method includes: transmitting signaling to a UE, and the UE determines a transmission mode between the UE and a base station according to the signaling, the signaling carrying indication information of a transmission configuration indicator (TCI) state, indication information of a redundancy version (RV), indication information of a demodulation reference signal (DMRS) port, and indication information indicating whether the number of retransmission is carried; or, besides the described indication information, the signaling also carrying indication information of a transmission mode. In the embodiments of the present application, indication information is carried in signaling and is used for indicating a specific transmission mode, and dynamic switching between different transmission modes can be achieved, and the system performance, the reliability and the resource utilization rate are better improved.

    Method and apparatus for determining uplink scheduling information

    公开(公告)号:US12232105B2

    公开(公告)日:2025-02-18

    申请号:US17636020

    申请日:2020-08-10

    Abstract: A method and apparatus for determining uplink scheduling information. The method includes a user equipment (UE) reports full power transmission capability and/or coherence transmission capability to a base station, determining a codebook subset of a codebook-based PUSCH and/or second information according to first information, the first information comprising at least one of the following information: the full power transmission capability, the coherence transmission capability, codebook subset restriction information of the codebook-based PUSCH, and first instruction, and the second information comprising an overhead indicated by a precoded matrix and the number of transport layers of the codebook-based PUSCH and/or an encoding mode indicated by the precoded matrix and the number of transport layers of the codebook-based PUSCH, and receiving uplink scheduling information of the codebook-based PUSCH, and determining the precoded matrix and the number of transport layers of the codebook-based PUSCH according to the uplink scheduling information of the codebook-based PUSCH.

    Antenna port indication method, terminal and network-side device

    公开(公告)号:US12218722B2

    公开(公告)日:2025-02-04

    申请号:US17799263

    申请日:2020-12-15

    Abstract: The embodiments of the present application provide an antenna port indication method, a terminal and a network-side device. Said method includes: transmitting a port indication message to a network-side device; and the port indication message carries at least any one of the following port indication information: bitmap information or combination coefficient information for indicating ports selected by a terminal; a first parameter for indicating the ports selected by the terminal; or a second parameter for indicating ports selected by the terminal in a first polarization direction and a third parameter for indicating the ports selected by the terminal in a second polarization direction. The embodiments of the present application achieve the indication of ports selected by a terminal.

    Transmission method and apparatus

    公开(公告)号:US11968140B2

    公开(公告)日:2024-04-23

    申请号:US17269538

    申请日:2019-06-12

    CPC classification number: H04L5/0048 H04B7/0413 H04L5/0053

    Abstract: The present application relates to the field of communications, and provides a transmission method and apparatus. The method includes a network side device determines a number of Demodulation Reference Signal (DMRS) port groups N occupied by downlink transmission data sent to a terminal, N being greater than or equal to 1; the network side device determines, according to the number of the DMRS port groups occupied by the downlink transmission data, a code word transmission mode corresponding to the downlink transmission data; and the network side device performs data processing on the downlink transmission data according to the code word transmission mode, and transmits the processed downlink transmission data by means of transmission points corresponding to the N DMRS port groups.

    Channel state information feedback method and device

    公开(公告)号:US11936455B2

    公开(公告)日:2024-03-19

    申请号:US17598834

    申请日:2020-02-26

    CPC classification number: H04B7/0626 H04B7/0469

    Abstract: A channel state information (CSI) feedback method and device are disclosed. In the method, a terminal determines an orthogonal beam group and pre-coding matrix information according to codebook parameter information, where a same beam in the orthogonal beam group has same specified coefficients in first and second polarization directions, each of the specified coefficients comprises an amplitude coefficient and/or a phase coefficient; the pre-coding matrix information includes the specified coefficients and adjustment factors, and the adjustment factors are used together with the specified coefficients to determine linear combination coefficients except the specified coefficients in a linear combination coefficient set; and the pre-coding matrix information is sent to a network-side device.

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