CPC H04W 4/46 (2018.02) [H04L 12/40 (2013.01); H04L 2012/40215 (2013.01); H04L 2012/40273 (2013.01)] | 29 Claims |
1. A synchronization system, comprising:
a first node configured to:
transmit a first synchronization message;
determine a first time at which the first synchronization message is transmitted;
transmit a second synchronization message containing a tx timestamp corresponding to the first time;
a second node configured to:
receive the first synchronization message from the first node;
determine a second time at which the first synchronization message is received and store a rx timestamp corresponding the second time;
receive the second synchronization message from the first node;
determine a current local time at which the second synchronization message is received;
read the tx timestamp in the second synchronization message;
adjust the current local time of the second node by adding a difference between the tx timestamp and the rx timestamp to the current local time; and
setting the adjusted current local time as a global time.
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