Method and arrangement for local sychronization in master-slave distributed communication systems
    1.
    发明申请
    Method and arrangement for local sychronization in master-slave distributed communication systems 失效
    主从分布式通信系统中本地同步的方法和布置

    公开(公告)号:US20060251124A1

    公开(公告)日:2006-11-09

    申请号:US10512671

    申请日:2003-03-31

    IPC分类号: H04J3/06

    摘要: For switching or transmitting data packets, one can provide communication systems which consist of several modules—operating in parallel on segments of a packet—to increase speed and handling capacity. One module acts as master (21), the others are slave modules (22) controlled by control signals (25) derived by the master module. It is important that in each module the data segment and the respective control signal of each packet are correctly synchronized, because in large systems the data paths carrying packet segments and the control signal paths may have substantially different delays. The invention provides for measurement of the propagation delay differences and for introducing a controlled delay in each slave module, so that data segments and control signals can be correctly correlated by delaying either the one or the other. Synchronization packets are transmitted besides normal data packets, for obtaining time stamps which are used to determine the delay difference.

    摘要翻译: 对于切换或传输数据分组,可以提供由多个模块组成的通信系统 - 在分组的分段上并行操作 - 以提高速度和处理能力。 一个模块作为主机(21),其他模块是由主模块导出的控制信号(25)控制的从模块(22)。 重要的是,在每个模块中,数据段和每个分组的相应控制信号被正确同步,因为在大系统中,承载分组段和控制信号路径的数据路径可能具有显着不同的延迟。 本发明提供了传播延迟差的测量和用于在每个从模块中引入受控延迟,使得数据段和控制信号可以通过延迟其中一个或另一个来正确地相关。 同步数据包除正常数据包之外传输,用于获取用于确定延迟差的时间戳。