Data transmission method and apparatus

    公开(公告)号:US11784753B2

    公开(公告)日:2023-10-10

    申请号:US17349033

    申请日:2021-06-16

    Abstract: Embodiments of this application provide data transmission methods and apparatuses. One method includes: receiving, by a communications apparatus, indication information from a network device, wherein the indication information indicates a data distribution selected from a first data distribution and a second data distribution; performing, by the communications apparatus, data transmission with the network device based on the data distribution; wherein the data distribution indicates a distribution of modulation symbols of a code block (CB) on one or more orthogonal frequency division multiplexing (OFDM) symbols of at least one resource unit, and wherein the one or more OFDM symbols are consecutive in time-domain.

    Update Method and Communications Apparatus

    公开(公告)号:US20230019630A1

    公开(公告)日:2023-01-19

    申请号:US17934693

    申请日:2022-09-23

    Abstract: Embodiments of this application provide an update method and a communications apparatus. The method includes: generating space domain vector update information, where the space domain vector update information is for updating a first group of space domain vectors to obtain a second group of space domain vectors, the space domain vector update information includes a plurality of groups of space domain vector coefficients, and each group of space domain vector coefficients is for performing weighted combination on the first group of space domain vectors, to obtain one space domain vector in the second group of space domain vectors; and sending the space domain vector update information.

    METHOD AND APPARATUS FOR TRANSMITTING DMRS

    公开(公告)号:US20220158797A1

    公开(公告)日:2022-05-19

    申请号:US17666318

    申请日:2022-02-07

    Abstract: Embodiments of this application disclose a method and an apparatus for transmitting a DMRS, and relate to the field of communications technologies. The method and the apparatus are applicable to an NR system. The method for transmitting a DMRS may include: determining a time-frequency resource used to carry a DMRS; and then sending the DMRS by using the time-frequency resource.

    Channel Measurement Method and Communications Apparatus

    公开(公告)号:US20220123793A1

    公开(公告)日:2022-04-21

    申请号:US17541668

    申请日:2021-12-03

    Abstract: This application provides a channel measurement method and a communications apparatus. The method includes: A terminal device generates first indication information and sends the first indication information to a network device, where the first indication information is determined based on received precoded reference signals of P ports and is used to indicate Q ports in the P ports; the P ports correspond to P angle-delay pairs; each angle-delay pair includes one angle vector and one delay vector; the precoded reference signal of each of the P ports is obtained by precoding a reference signal based on one angle vector and one delay vector; and the Q ports correspond to Q angle-delay pairs in the P angle-delay pairs.

    Reference signal sending/receiving method, terminal device, and network device

    公开(公告)号:US11025392B2

    公开(公告)日:2021-06-01

    申请号:US16457613

    申请日:2019-06-28

    Abstract: A reference signal sending/receiving method, a terminal device, and a network device are provided. The terminal device determines transmit power of a reference signal of the terminal device, where the transmit power is related to a quantity of unavailable time-frequency resources in a transmission unit in which the reference signal is located; and transmits the reference signal based on the transmit power. After receiving the reference signal from the terminal device, the network device parses the reference signal based on the transmit power. The terminal device relates the transmit power of the reference signal of the terminal device to the quantity of unavailable time-frequency resources in the transmission unit in which the reference signal is located, thereby improving the transmit power of the reference signal of the terminal device in uplink MU-MIMO, and improving communication performance of the terminal device with a low signal-to-noise ratio.

    Method for configuring channel state information reporting band and communications apparatus

    公开(公告)号:US10511411B2

    公开(公告)日:2019-12-17

    申请号:US16237465

    申请日:2018-12-31

    Abstract: This application provides a method for configuring a channel state information reporting band, a reporting method, and a corresponding apparatus. The method includes: determining a channel state information subband size based on a bandwidth part BWP; and determining, a quantity of channel state information subbands included in a channel state information reporting band, based on a carrier bandwidth CC bandwidth or the bandwidth part BWP bandwidth or a channel state information reference signal CSI-RS bandwidth, and the channel state information subband size. The method further includes: determining an actual quantity of resource blocks included in a starting subband and an actual quantity of resource blocks included in an ending subband in the channel state information subband. Implementation of this application makes configuration of a quantity and size of subbands in a CSI reporting band more flexible, and reduces complexity of terminal addressing.

    METHOD FOR CONFIGURING CHANNEL STATE INFORMATION REPORTING BAND AND COMMUNICATIONS APPARATUS

    公开(公告)号:US20190222354A1

    公开(公告)日:2019-07-18

    申请号:US16237465

    申请日:2018-12-31

    Abstract: This application provides a method for configuring a channel state information reporting band, a reporting method, and a corresponding apparatus. The method includes: determining a channel state information subband size based on a bandwidth part BWP; and determining, a quantity of channel state information subbands included in a channel state information reporting band, based on a carrier bandwidth CC bandwidth or the bandwidth part BWP bandwidth or a channel state information reference signal CSI-RS bandwidth, and the channel state information subband size. The method further includes: determining an actual quantity of resource blocks included in a starting subband and an actual quantity of resource blocks included in an ending subband in the channel state information subband. Implementation of this application makes configuration of a quantity and size of subbands in a CSI reporting band more flexible, and reduces complexity of terminal addressing.

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