Information sending and receiving method, device, and apparatus

    公开(公告)号:US12250165B2

    公开(公告)日:2025-03-11

    申请号:US17199761

    申请日:2021-03-12

    Abstract: An information sending method, an information receiving method, a device, and an apparatus are disclosed. The information sending method includes: determining, by a first terminal device based on first information, at least one of a quantity or a position of m DMRSs carried on a PSSCH, where m is a positive integer, and the first information includes at least one of a subcarrier spacing, duration of the PSSCH, or a channel coherence time; and sending, by the first terminal device, the m DMRSs to a second terminal device. In addition, when the DMRS on the PSSCH is determined, a reference channel coherence time may be selected. For example, a time interval between two configured adjacent DMRSs may be less than or equal to the channel coherence time.

    Method and Apparatus for Obtaining Traffic Information, and Storage Medium

    公开(公告)号:US20240221499A1

    公开(公告)日:2024-07-04

    申请号:US18602628

    申请日:2024-03-12

    CPC classification number: G08G1/0125 G08G1/0112 G08G1/167 H04W4/44

    Abstract: A method for obtaining traffic information may be applied to an on-board unit. The method may include: receiving vehicle-to-everything (V2X) information, where the V2X information indicates a first group of lane identifiers and traffic information corresponding to each lane identifier in the first group of lane identifiers, and the first group of lane identifiers includes a first lane identifier; obtaining map information, where the map information indicates that a second lane identifier on a map and the first lane identifier correspond to a same lane; determining that a vehicle is on the lane corresponding to the second lane identifier; determining, based on the map information, that the vehicle is on the lane corresponding to the first lane identifier; and extracting traffic information corresponding to the first lane identifier from the V2X information.

    Sidelink Data Packet Sending and Receiving Method and Communication Apparatus

    公开(公告)号:US20220272678A1

    公开(公告)日:2022-08-25

    申请号:US17743689

    申请日:2022-05-13

    Abstract: A method including determining, by a first terminal device, a size of a sidelink data packet, determining, by the first terminal device based on the size of the sidelink data packet, a first quantity of time-frequency units corresponding to the sidelink data packet, determining, by the first terminal device, a frequency domain resource of a second time-frequency resource from a first time-frequency resource, based on the first quantity, a resource selection rule, and at least one of a time domain resource of the second time-frequency resource, or a frequency domain resource of the second time-frequency resource, and performing, by the first terminal device, at least one of sending the sidelink data packet to a second terminal device on the second time-frequency resource, or receiving the sidelink data packet from a second terminal device on the second time-frequency resource.

    Information Sending and Receiving Method, Device, and Apparatus

    公开(公告)号:US20210203462A1

    公开(公告)日:2021-07-01

    申请号:US17199761

    申请日:2021-03-12

    Abstract: An information sending method, an information receiving method, a device, and an apparatus are disclosed. The information sending method includes: determining, by a first terminal device based on first information, at least one of a quantity or a position of m DMRSs carried on a PSSCH, where m is a positive integer, and the first information includes at least one of a subcarrier spacing, duration of the PSSCH, or a channel coherence time; and sending, by the first terminal device, the m DMRSs to a second terminal device. In addition, when the DMRS on the PSSCH is determined, a reference channel coherence time may be selected. For example, a time interval between two configured adjacent DMRSs may be less than or equal to the channel coherence time.

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