Data processing method and apparatus thereof

    公开(公告)号:US10951368B2

    公开(公告)日:2021-03-16

    申请号:US16680112

    申请日:2019-11-11

    Abstract: Embodiments of this application disclose a data processing method and an apparatus thereof. The method includes: processing, by a network device, to-be-transmitted data to obtain a data distribution manner, where the processing includes at least one of interleaving processing and mapping processing that is performed in a mapping sequence; the data distribution manner is used to indicate distribution of data from a same code block; and when the processing includes only mapping processing performed in a mapping sequence, the mapping sequence does not include a mapping sequence in which space-domain mapping is first performed, frequency-domain mapping is then performed, and time-domain mapping is finally performed; sending, the to-be-transmitted data distributed in the data distribution manner; receiving, by a terminal device, processed to-be-transmitted data; and determining, a data distribution manner, and performing de-processing on the processed to-be-transmitted data in the data distribution manner, to obtain the to-be-transmitted data.

    DMRS transmission method and communications device

    公开(公告)号:US10819390B2

    公开(公告)日:2020-10-27

    申请号:US16522255

    申请日:2019-07-25

    Abstract: This application provides a Demodulation Reference Signal (DMRS) transmission method and a communications device. The method includes: determining, by a communications device, a current mode of a resource scheduling unit, where the current mode is a frequency hopping mode or an aggregation mode, and performing, by the communications device, DMRS mapping or demapping by using a DMRS pattern corresponding to the current mode, where a location of a symbol occupied by a DMRS in the DMRS pattern corresponding to the current mode is different from a location of a symbol occupied by a DMRS in a preset DMRS pattern. In embodiments of this application, a location of a symbol occupied by a DMRS can be flexibly selected depending on different modes. Therefore, requirements of the different modes can be satisfied in the embodiments of this application, thereby improving network performance.

    Precoding and channel state information acquisition for multi-stream transmissions in massive MIMO systems

    公开(公告)号:US10516462B2

    公开(公告)日:2019-12-24

    申请号:US16188791

    申请日:2018-11-13

    Abstract: A radio access node (RAN) and method of operation of the RAN are provided. The RAN includes a massive multiple-input-multiple-output (MIMO) antenna array. The RAN includes a processing hardware configured to carry out a communication method that includes receiving a digital data stream for transmission on a time-frequency resource. The RAN precodes the digital data stream using a digital beamforming stage to render a precoded digital downlink data stream for downlink data stream signal transmission to a user equipment. The digital beamforming stage includes a first precoding stage configured according to a long-term matrix, and a second precoding stage configured according to a short-term matrix. The RAN is further configured to generate a downlink data stream transmission signal to the user equipment in accordance with the precoded digital downlink data stream.

    RANK INDICATION METHOD, RANK INDICATION REPORTING METHOD, DEVICE AND SYSTEM, AND STORAGE MEDIUM

    公开(公告)号:US20190181929A1

    公开(公告)日:2019-06-13

    申请号:US16237509

    申请日:2018-12-31

    Abstract: This application provides a technical solution for rank indication, and especially when a CQI number is not configured or a CQI number is 1, a network device configures a rank indication restriction parameter as that at least one of ranks whose index numbers are 0, 1, 2, and 3 is allowed to be reported by the terminal device; or even if the network device does not perform the foregoing configuration, and none of the ranks whose index numbers are 0, 1, 2, and 3 is allowed to be reported, the terminal device may select at least one rank for RI reporting, so as to resolve a problem that a system cannot work. In addition, according to embodiments of this application, bit overheads required for RI reporting may further be reduced.

    Channel state information feedback method and communications apparatus

    公开(公告)号:US12244382B2

    公开(公告)日:2025-03-04

    申请号:US17887209

    申请日:2022-08-12

    Abstract: A channel state information feedback method includes: a terminal receives first indication information from a network device, and the terminal sends channel state information to the network device. The first indication information is used to indicate a type of a right multiplication matrix in a first codebook, and the first codebook satisfies a formula (I). W is the first codebook, W1 is a port selection matrix, (II) is a linear superposition coefficient matrix, Wf is the right multiplication matrix, and (III) is a conjugate transpose of Wf, and is used by the terminal to determine the channel state information based on the first codebook. According to the method, when there are a plurality of codebooks, the codebook used by the terminal to obtain the CSI can be clearly indicated.

    Information transmission method and apparatus

    公开(公告)号:US12108396B2

    公开(公告)日:2024-10-01

    申请号:US17372075

    申请日:2021-07-09

    CPC classification number: H04W72/20

    Abstract: This application provides an information transmission method and apparatus. The method includes: receiving, by a terminal device, a plurality of downlink data channels, where the plurality of downlink data channels are scheduled through a plurality of downlink control channels; determining, by the terminal device based on the plurality of downlink data channels, one or more pieces of feedback information corresponding to at least two downlink data channels; and sending, by the terminal device, the one or more pieces of feedback information through a same uplink control channel.

    INFORMATION FEEDBACK METHOD AND RELATED APPARATUS

    公开(公告)号:US20240204844A1

    公开(公告)日:2024-06-20

    申请号:US18433363

    申请日:2024-02-05

    CPC classification number: H04B7/0626 H04B7/0452

    Abstract: Embodiments of this application disclose an information feedback method and a related apparatus. A terminal device sends first information to a network apparatus, where the first information includes a total quantity of nonzero coefficients at all spatial layers of the terminal device, and the nonzero coefficients are used to constitute a weighting coefficient matrix in a codebook. The first information further includes first indication information, and the first indication information indicates whether second information sent by the terminal device to the network apparatus carries indication information of a location of a nonzero coefficient. In this way, a coding bit rate of the indication information sent by the terminal device to the network apparatus is reduced while correct data transmission is ensured.

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