DOWNLINK CONTROL INFORMATION TRANSMISSION METHOD, APPARATUS, AND SYSTEM

    公开(公告)号:US20220014299A1

    公开(公告)日:2022-01-13

    申请号:US17487397

    申请日:2021-09-28

    Abstract: Embodiments of this application provide a downlink control information transmission method, an apparatus, and a system, so that after receiving one piece of DCI, the terminal device learns whether blind detection of DCI needs to be continued. The method includes: A terminal device receives first DCI, where the first DCI includes first indication information, and the first indication information is used to indicate a first antenna port. The terminal device assumes, based on the first antenna port and antenna port configuration information, whether second DCI exists. The configuration information may include an index of a CDM group to which each of a plurality of antenna ports belongs and a maximum quantity of CDM groups that is supported by the terminal device; or the configuration information may include one or more antenna port groups, and each of the one or more antenna port groups includes one or more antenna ports.

    COMMUNICATION METHOD AND COMMUNICATIONS APPARATUS

    公开(公告)号:US20210105767A1

    公开(公告)日:2021-04-08

    申请号:US17123890

    申请日:2020-12-16

    Abstract: This application discloses communication methods and apparatuses. One method includes: receiving, by a terminal device, a reference signal from a beam of a network device; determining, by the terminal device, availability of the beam based on a threshold and the reference signal; and sending, by the terminal device, feedback information to the network device, wherein the feedback information indicates the availability of the beam.

    METHOD AND APPARATUS FOR TRANSMITTING PILOT SIGNAL

    公开(公告)号:US20180367274A1

    公开(公告)日:2018-12-20

    申请号:US16053185

    申请日:2018-08-02

    CPC classification number: H04L5/0048 H04L1/1614 H04L5/00 H04L5/0023 H04L5/0053

    Abstract: This application discloses a method and an apparatus for transmitting a pilot signal, so that more flexible resource configuration can be achieved, thereby improving resource usage. The method includes: determining, by a transmit end device based on prestored N pilot patterns, a target time-frequency resource for transmitting a pilot signal, where the target time-frequency resource corresponds to a total quantity of layers of a to-be-transmitted data stream, the N pilot patterns are different from each other, and N is a natural number greater than or equal to 1; and sending, by the transmit end device, indication information to a receive end device, where the indication information is used to instruct the receive end device to transmit the pilot signal to the transmit end device based on the target time-frequency resource.

    COMMUNICATION PROCESSING METHOD AND APPARATUS

    公开(公告)号:US20220021482A1

    公开(公告)日:2022-01-20

    申请号:US17489322

    申请日:2021-09-29

    Abstract: This application provides a communication processing method and apparatus. The method includes: receiving M groups of first parameters and N groups of second parameters that are sent by a network device, where the first parameter is a downlink parameter, the second parameter is a CRS rate matching parameter, M is a positive integer greater than or equal to 2, and N is a positive integer greater than or equal to 1, where there is an association relationship between P groups of first parameters in the M groups of first parameters and the N groups of second parameters, P is less than or equal to M, and P is a positive integer. Terminal devices may determine a punctured time-frequency resource on a PDSCH based on CRS rate matching parameters determined by the terminal devices, to obtain downlink data.

    BEAM REPORTING METHOD AND COMMUNICATIONS APPARATUS

    公开(公告)号:US20210274372A1

    公开(公告)日:2021-09-02

    申请号:US17324712

    申请日:2021-05-19

    Abstract: A beam reporting method and a communications apparatus is provided. The method includes that a terminal device receives first information, where the first information is used to configure at least two reference signal resource groups; and sending, by the terminal device, reporting information, where the reporting information includes related information of at least two beams, the at least two beams are used to send reference signals carried on at least two reference signal resources, and the reference signals sent by using the at least two beams can be simultaneously received by the terminal device, where the at least two reference signal resources are respectively from the at least two reference signal resource groups. In this application, related information of beams of at least two transmission points is reported through one time of beam scanning, to implement beam training in a CoMP system.

    COMMUNICATION METHOD AND APPARATUS
    7.
    发明公开

    公开(公告)号:US20240154675A1

    公开(公告)日:2024-05-09

    申请号:US18404196

    申请日:2024-01-04

    CPC classification number: H04B7/0634 H04B7/0626 H04L25/0248

    Abstract: Embodiments of this application provide a communication method and an apparatus. The method includes: A terminal device measures a downlink reference signal, to obtain third information. The terminal device determines first information and first scenario-related information of a downlink channel based on the third information, and sends the first information and the first scenario-related information to a network device. The network device determines second information based on the first scenario-related information and the first information, where the second information may be considered as reconstructed third information. The third information is reconstructed in the foregoing manner based on the scenario-related information, so that reconstruction precision of the third information can be improved.

    Method For Determining Transport Block Size And Apparatus

    公开(公告)号:US20220174653A1

    公开(公告)日:2022-06-02

    申请号:US17675807

    申请日:2022-02-18

    Abstract: Example methods and apparatus for determining a transport block size are described. One example method includes determining a transport block size (TBS) of a first transport block by a communications apparatus. The communications apparatus determines a TBS of a second transport block based on the TBS of the first transport block, where the first transport block is different from the second transport block, the TBS of the second transport block is equal to the TBS of the first transport block, and a data channel carrying the first transport block and a data channel carrying the second transport block occupy a same time domain resource.

    METHOD FOR CONFIGURING CHANNEL STATE INFORMATION CSI REPORTING AND COMMUNICATION APPARATUS

    公开(公告)号:US20210314122A1

    公开(公告)日:2021-10-07

    申请号:US17352108

    申请日:2021-06-18

    Abstract: This application provides a method for configuring channel state information CSI reporting and a communication apparatus. The method includes: A terminal device receives configuration information for CSI reporting, where the configuration information for the CSI reporting is associated with configuration information of a first reference signal and configuration information of a second reference signal, the second reference signal is used for measuring an uplink channel, and the first reference signal is used for measuring a downlink channel. The terminal device performs channel measurement based on the first reference signal and the second reference signal to generate a CSI, and feeds back CSI. By using uplink and downlink channel reciprocity, the terminal device may not need to feed back information with reciprocity, for example, an angle and a delay, so that feedback overheads of the terminal device are reduced.

    CHANNEL QUALITY INFORMATION REPORTING METHOD, TERMINAL DEVICE, AND NETWORK DEVICE

    公开(公告)号:US20200228297A1

    公开(公告)日:2020-07-16

    申请号:US16832970

    申请日:2020-03-27

    Abstract: This application provides a channel quality information reporting method, a terminal device, and a network device. The reporting method includes: receiving, by a terminal device, a first reference signal and a second reference signal that are sent by a network device; receiving, by the terminal device, first indication information sent by the network device, where the first indication information includes a quasi co-location (QCL) assumption relationship between the second reference signal and the first reference signal; and reporting, by the terminal device, second channel quality information to the network device based on the QCL assumption relationship, where the second channel quality information is channel quality information for the second reference signal. According to this application, resource overheads for reporting channel quality information can be reduced.

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