Time synchronization method, device and system of xDSL
A time synchronization and time technology, applied in the field of communication, can solve problems such as large line noise, affecting the accuracy of time synchronization, large errors, etc., and achieve the effect of time synchronization
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[0044] Hereinafter, the present invention will be explained clearly and completely in conjunction with the accompanying drawings:
[0045] The first embodiment of the present invention provides an xDSL time synchronization method, including the following steps: a first device sends a first symbol to a second device, and obtains the time Ts2 when the first symbol is sent;
[0046] Receiving, by the first device, the second symbol sent by the second device, and acquiring the time Ts1 for receiving the second symbol;
[0047] Acquiring, by the first device, the time Tm2 when the second device receives the first symbol and the time Tm1 when the second device sends the second symbol;
[0048] The first device calculates the deviation between the clock of the first device and the clock of the second device according to the Ts1, Ts2, Tm1, Tm2, and the delay of the first device;
[0049] The first device adjusts the clock of the first device according to the deviation to achieve synchronizati...
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