D2D data transmission method and system, and device

    公开(公告)号:US10609743B2

    公开(公告)日:2020-03-31

    申请号:US15758613

    申请日:2015-09-11

    Inventor: Xiaocui Li Kai Xu

    Abstract: A device-to-device (D2D) data transmission method and system, where the method implemented by a source terminal and includes sending a first message to n candidate terminals, where the first message discovers the n candidate terminals, the source terminal is out of a network coverage area of a base station, and the n candidate terminals are in the network coverage area of the base station, receiving n second messages from each candidate terminal, wherein each second message includes at least one of a user identity of each candidate terminal or status information of each candidate terminal, determining a relay terminal from the n candidate terminals according to at least one of the user identity of each candidate terminal or the status information of each candidate terminal, and transmitting the data to the base station using the relay terminal.

    INFORMATION TRANSMISSION METHOD, DEVICE, AND SYSTEM

    公开(公告)号:US20180006863A1

    公开(公告)日:2018-01-04

    申请号:US15541675

    申请日:2015-01-05

    Abstract: The present invention discloses an information transmission method, a device, and a system, and relates to the communications field, so as to resolve a problem that a receiving device has excessively large power consumption because the receiving device needs to continuously perform blind detection on a channel to determine a moment at which data transmission is started. A specific solution is: obtaining, by a network device, a start location of a first subframe, configuring a first field in downlink control information DCI of a second subframe, and sending, to user equipment, the first subframe and the second subframe that are adjacent to each other, where the first field is used to indicate the start location of the first subframe. The present invention is used for information transmission.

    Signal transmission method and user equipment

    公开(公告)号:US09680620B2

    公开(公告)日:2017-06-13

    申请号:US14750768

    申请日:2015-06-25

    CPC classification number: H04L5/0053

    Abstract: Embodiments of the present disclosure provide a signal transmission method and a user equipment. The method includes: receiving, by a user equipment, an indication signal, where the indication signal is used to indicate resource numbers corresponding to physical resources occupied by one or more control signals, where a resource number corresponding to a physical resource includes time information and frequency information of the physical resource; allocating, by the user equipment according to the resource numbers, one or more physical resources corresponding to the one or more control signals; and sending, by the user equipment, the one or more control signals. With the embodiments of the present disclosure, energy consumption at a receive end can be saved.

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