Communications method and device
    2.
    发明授权

    公开(公告)号:US11750250B2

    公开(公告)日:2023-09-05

    申请号:US17692736

    申请日:2022-03-11

    摘要: Disclosed are a communications method and device. The method includes: sending, by a network device, configuration information to a terminal device; determining, by the terminal device, channel state information CSI measurement behavior and/or CSI feedback related information, where the channel state information CSI measurement behavior and/or the CSI feedback related information are/is related to the configuration information; and performing, by the terminal device, CSI measurement based on the configuration information and the CSI measurement behavior and/or the CSI feedback related information, to obtain at least one piece of CSI, and sending all or some of the at least one piece of CSI to the network device. It can be learned that, in a scenario in which a plurality of transmission modes are supported, according to the foregoing method, the terminal device can measure CSI, and feed back the measured CSI to the network device.

    Communication method and communications apparatus and system

    公开(公告)号:US11516783B2

    公开(公告)日:2022-11-29

    申请号:US16988407

    申请日:2020-08-07

    摘要: This application provides a communication method and a communications apparatus and system, to help improve transmission reliability. One method includes: obtaining, by a terminal device, a configuration parameter comprising a channel state information (CSI) process feature; and in response to determining that the CSI process feature indicates that further enhancements to coordinated multi-point (FeCoMP) CSI is enabled, sending, by the terminal device uplink control information on a physical uplink channel without sending uplink data on the physical uplink channel.

    Information transmission method and apparatus

    公开(公告)号:US11363451B2

    公开(公告)日:2022-06-14

    申请号:US16672927

    申请日:2019-11-04

    摘要: Embodiments of this application disclose an information transmission method and an apparatus. The method includes: sending, by a terminal to a base station, capability indication information used to indicate whether the terminal supports non-coherent joint transmission; and receiving downlink control information sent by the base station, where the downlink control information is based on the capability indication information. According to the embodiments of this application, the base station can know whether the terminal supports NCJT, so as to select an appropriate transmission mode.

    Data transmission method, sending device, and receiving device

    公开(公告)号:US11343056B2

    公开(公告)日:2022-05-24

    申请号:US16734808

    申请日:2020-01-06

    摘要: Embodiments of this application provide example data transmission methods. One example method includes: receiving, by a receiving device, first data on a first time-frequency resource, and receiving second data on a second time-frequency resource. When the first time-frequency resource and the second time-frequency resource have an overlapped target frequency domain resource in frequency domain, the receiving device can then use a first DMRS mapped to a target frequency domain resource of the first time-frequency resource to demodulate the second data mapped to a target frequency domain resource of the second time-frequency resource.

    Communication method, communications apparatus, and system

    公开(公告)号:US11251846B2

    公开(公告)日:2022-02-15

    申请号:US17189741

    申请日:2021-03-02

    IPC分类号: H04B7/0456 H04B7/06 H04W72/04

    摘要: One example method includes receiving first indication information through a higher layer signaling, the first indication information indicating an available codebook subset, receiving downlink control information, determining a precoding matrix corresponding to a transmission precoding matrix indicator (TPMI) and a transmission rank obtained from the downlink control information, where the precoding matrix belongs to the available codebook subset indicated by the first indication information, precoding a signal based on the determined precoding matrix, and sending the precoded signal to a network device.

    Transmission precoding matrix indication method and device

    公开(公告)号:US11206064B2

    公开(公告)日:2021-12-21

    申请号:US16673432

    申请日:2019-11-04

    IPC分类号: H04B7/0456 H04B7/06 H04W72/04

    摘要: This application provides a transmission precoding matrix indication method and a device. The method includes: determining a bit quantity of a transmission precoding matrix indicator field corresponding to a subband scheduled for uplink based on downlink control information received from a network device, where the bit quantity of the transmission precoding matrix indicator field corresponding to the subband is related to a quantity of subbands corresponding to the resource scheduled for uplink; and further, determining an uplink transmission precoding matrix corresponding to the subband based on the bit quantity of the transmission precoding matrix indicator field corresponding to the subband and the uplink transmission layer quantity. A transmission precoding matrix indicator field can be effectively used, and control channel resource utilization is improved.

    Method and device for determining QCL relationship between antenna ports

    公开(公告)号:US11184090B2

    公开(公告)日:2021-11-23

    申请号:US16674380

    申请日:2019-11-05

    摘要: This application provides a method and device for determining antenna port quasi co-location QCL. The method includes: generating, by a network device, downlink control information DCI, where the DCI includes QCL indication information, the QCL indication information is used to indicate one of a plurality of pieces of combination information, and first combination information in the plurality of pieces of combination information is used to indicate a QCL relationship between a DMRS antenna port and a CSI-RS antenna port; and sending, by the network device, the DCI to a terminal device. Therefore, in embodiments of this application, the terminal device can determine the QCL relationship between the DMRS antenna port and the CSI-RS antenna port based on the DCI, thereby resolving a problem in the prior art and improving network performance.