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公开(公告)号：US10111189B2
公开(公告)日：2018-10-23
申请号：US14860181
申请日：2015-09-21
IPC分类号： H04W56/00
摘要： In one embodiment, a timing slave packet switching device receives a received primary reference clock signal. The timing slave packet switching device communicates a first plurality of packet network synchronization packets over a packet switching network with a remote primary reference clock source and derives an over-network clock based on the first plurality of packet network synchronization packets. A phase offset between the phase of the over-network clock and the phase of the received primary reference clock signal is determined and typically stored in non-volatile storage. Subsequent to said determining the phase offset, the timing slave packet switching device communicates a second plurality of packet network synchronization packets over the packet switching network with the remote primary reference clock source and adjusts the phase of a clock derived from the second plurality of packet network synchronization packets based on the phase offset.
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2.发明申请Enhanced Phase Synchronization of a Timing Slave Apparatus in a Packet Switching Network 审中-公开分组交换网络中的定时从设备的增强的相位同步公开(公告)号：US20170034797A1
公开(公告)日：2017-02-02
申请号：US14860181
申请日：2015-09-21
IPC分类号： H04W56/00
CPC分类号： H04W56/001
摘要： In one embodiment, a timing slave packet switching device receives a received primary reference clock signal. The timing slave packet switching device communicates a first plurality of packet network synchronization packets over a packet switching network with a remote primary reference clock source and derives an over-network clock based on the first plurality of packet network synchronization packets. A phase offset between the phase of the over-network clock and the phase of the received primary reference clock signal is determined and typically stored in non-volatile storage. Subsequent to said determining the phase offset, the timing slave packet switching device communicates a second plurality of packet network synchronization packets over the packet switching network with the remote primary reference clock source and adjusts the phase of a clock derived from the second plurality of packet network synchronization packets based on the phase offset.
摘要翻译： 在一个实施例中，定时从分组交换设备接收接收的主参考时钟信号。 定时从分组交换设备通过分组交换网络与远程主参考时钟源通信第一多个分组网络同步分组，并且基于第一多个分组网络同步分组导出超网络时钟。 确定过网络时钟的相位与接收的主参考时钟信号的相位之间的相位偏移，并且通常将其存储在非易失性存储器中。 在所述确定相位偏移之后，定时从分组交换设备通过分组交换网络与远程主参考时钟源通信第二多个分组网络同步分组，并且调整从第二多个分组网络导出的时钟的相位 基于相位偏移的同步数据包。
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