Method and Device for Initial Synchronization Between D2D Terminals
    3.
    发明申请
    Method and Device for Initial Synchronization Between D2D Terminals 审中-公开
    D2D端子初始同步的方法和设备

    公开(公告)号:US20160249311A1

    公开(公告)日:2016-08-25

    申请号:US15099749

    申请日:2016-04-15

    CPC classification number: H04W56/0015 H04W4/70 H04W56/0025

    Abstract: A method and a device for initial synchronization between D2D terminals are used to implement initial synchronization between the D2D terminals. A D2D master terminal measures a time-frequency resource set used to transmit a synchronization signal, and reports a measurement result to a network device; the D2D master terminal receives a synchronization resource that is allocated by the network device to the D2D master terminal according to the measurement result reported by the D2D master terminal; and the D2D master terminal sends the synchronization signal according to the synchronization resource allocated to the D2D master terminal.

    Abstract translation: 用于D2D终端之间的初始同步的方法和装置用于实现D2D终端之间的初始同步。 D2D主终端测量用于发送同步信号的时间 - 频率资源集,并将测量结果报告给网络设备; D2D主终端根据D2D主终端报告的测量结果,接收由网络设备分配给D2D主终端的同步资源; D2D主终端根据分配给D2D主终端的同步资源发送同步信号。

    Data transmission method, base station, and user equipment

    公开(公告)号:US10306666B2

    公开(公告)日:2019-05-28

    申请号:US15363920

    申请日:2016-11-29

    Abstract: Embodiments of the present invention disclose a data transmission method, a base station, and user equipment. The method in the embodiments of the present invention includes: receiving, by a base station, a first target sequence and uplink data that are sent by user equipment; determining, by the base station according to a first mapping relationship, a first target uplink sending parameter corresponding to the first target sequence, where the first mapping relationship is used to indicate a correspondence between an uplink sending parameter and a sequence; and demodulating and decoding, by the base station, the uplink data according to the first target uplink sending parameter.

    Synchronization method, receive end, and transmit end

    公开(公告)号:US10225126B2

    公开(公告)日:2019-03-05

    申请号:US15266794

    申请日:2016-09-15

    Abstract: The present invention provides a synchronization signal receiving method, including: receiving, by a receive end, a synchronization sequence sent by a transmit end, where the synchronization sequence includes a carrier frequency synchronization sequence, the carrier frequency synchronization sequence is zc(m)=e±jπm(m+1+2q)/L, m=0, 1, . . . , L−1, q∈Z, L indicates a length of the carrier frequency synchronization sequence, q indicates a parameter of the carrier frequency synchronization sequence, Z indicates an integer set, e±jπm(m+1+2q)/L indicates the (±jπm(m+1+2q)/L)th power of e, and e is a natural constant; and performing, by the receive end, frequency offset estimation according to the received synchronization sequence, to obtain a frequency offset estimation value. With the technical solutions of embodiments of the present invention, accuracy of frequency offset estimation can be improved.

    SYNCHRONIZATION METHOD AND APPARATUS
    6.
    发明申请
    SYNCHRONIZATION METHOD AND APPARATUS 审中-公开
    同步方法和装置

    公开(公告)号:US20160212723A1

    公开(公告)日:2016-07-21

    申请号:US15085041

    申请日:2016-03-30

    Abstract: Embodiments of the present invention includes: acquiring, by the DS-user terminal, a first timing offset, where the first timing offset is a difference between a start time point of receiving data by the DS-user terminal and a start time point of sending data by a DM-user terminal, the start time point of sending data by the DM-user terminal is a start time point of sending data after the DM-user terminal is synchronized with a network-side device, and the start time point of receiving data by the DM-user terminal is a start time point of receiving data after the DM-user terminal is synchronized with the network-side device; and adjusting, by the DS-user terminal according to the first timing offset, the start time point of receiving data by the DS-user terminal, so as to synchronize with the DM-user terminal and the network-side device.

    Abstract translation: 本发明的实施例包括:由DS用户终端获取第一定时偏移,其中第一定时偏移是DS用户终端接收数据的开始时间点与发送的起始时间点之间的差 数据由DM用户终端发送,由DM用户终端发送数据的开始时间点是在DM用户终端与网络侧设备同步之后发送数据的开始时间点,并且开始时间点 由DM用户终端接收数据是在DM用户终端与网络侧设备同步之后接收数据的开始时间点; 并且通过DS用户终端根据第一定时偏移量调整由DS用户终端接收数据的开始时间点,以便与DM用户终端和网络侧设备同步。

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