Clock synchronization method and device and communications system

    公开(公告)号:US10178636B2

    公开(公告)日:2019-01-08

    申请号:US15256538

    申请日:2016-09-03

    Abstract: An embodiment includes a method. The method includes determining, by a first node device in a network, a first master clock according to a first clock data set of the first node device and a first clock data set of another node device in the network, and synchronizing to the first master clock, where the first clock data set includes a first clock domain selection parameter of a node device. The method also includes determining, by the first node device, a second master clock according to a second clock data set of the first node device and a second clock data set of another node device that belongs to a same first node clock domain as the first node device does, and synchronizing to the second master clock, where the second clock data set includes a second clock domain selection parameter of a node device.

    Method and apparatus for obtaining feedback delay
    53.
    发明授权
    Method and apparatus for obtaining feedback delay 有权
    获得反馈延迟的方法和装置

    公开(公告)号:US08917621B2

    公开(公告)日:2014-12-23

    申请号:US13715349

    申请日:2012-12-14

    CPC classification number: H04W24/02 H04L1/1812 H04L1/1854

    Abstract: A method for obtaining feedback delay includes: obtaining a target time elapsed in a process from when a remote radio end receives uplink data sent from a user end to when the remote radio end sends out feedback information responsive to the uplink data to the user end, wherein the feedback information responsive to the uplink data is fed back by a processing node to the remote radio end; calculating a feedback delay by adding the target time and an air interface transmission propagation delay, wherein the air interface transmission propagation delay is a transmission time of the uplink data from the user end to the remote radio end; and configuring, by the processing node, an uplink hybrid automatic repeat request (HARQ) ACK/NACK feedback interval to be the feedback delay.

    Abstract translation: 用于获得反馈延迟的方法包括:获得从远程无线电终端接收到从用户端发送的上行链路数据到远程无线电端响应于上行链路数据向用户端发送反馈信息的过程中经过的目标时间, 其中响应于上行链路数据的反馈信息由处理节点反馈给远程无线电端; 通过增加目标时间和空中接口传输传播延迟来计算反馈延迟,其中空中接口传输传播延迟是从用户端到远程无线电端的上行链路数据的传输时间; 以及由处理节点将上行链路混合自动重传请求(HARQ)ACK / NACK反馈间隔配置为反馈延迟。

    Data transmission resource determining method, device, and system

    公开(公告)号:US12156180B2

    公开(公告)日:2024-11-26

    申请号:US17701824

    申请日:2022-03-23

    Abstract: A data transmission resource determining method includes determining an initial time interval and an interval difference, and determining, based on a initial time interval and a interval difference, a time domain position of a first time-frequency resource in response to the first TB being transmitted for an ith time, where i is a positive integer, and 2≤i≤Rmax+1. The initial time interval is between a time domain position at which a first transport block (TB) is transmitted for the first time and the second time. The interval difference is a difference between a first and a second time interval. The first time interval is between a corresponding time domain position at which the first TB is transmitted for a kth h time and (k+1)th time. The second time interval is between a corresponding time domain position at which the first TB is transmitted for the (k+1)th time and (k+2)th time.

    Information transmission method, communications device, and network device

    公开(公告)号:US11979879B2

    公开(公告)日:2024-05-07

    申请号:US17189979

    申请日:2021-03-02

    CPC classification number: H04W72/20 H04W72/30

    Abstract: Embodiments of this application provide an information transmission method, a communications device, and a network device. The information transmission method may include: sending, by a first communications device, a request message to a network device, to request the network device to schedule a resource for transmission of sidelink information between the first communications device and a second communications device; and further receiving indication information that is used to indicate the resource and that is sent by the network device, and sending the sidelink information to the second communications device on the resource. In the embodiments of this application, reachability of the sidelink information can be ensured.

    Channel Measurement Method and Terminal Apparatus

    公开(公告)号:US20220174517A1

    公开(公告)日:2022-06-02

    申请号:US17672043

    申请日:2022-02-15

    Abstract: This application provides a channel measurement method and an apparatus, which may be used in a field such as vehicle-to-everything V2X, smart internet of vehicles, autonomous driving, or an unmanned driving. In a sidelink channel report procedure, a transmit end apparatus for sidelink communication indicates one or more candidate time intervals to a receive end apparatus. The receive end apparatus may attempt to obtain an available PSSCH for sending a channel measurement report on one or more time domain resources corresponding to the one or more candidate time intervals.

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