| CPC H04J 3/0641 (2013.01) [H04J 3/0667 (2013.01); H04L 7/04 (2013.01); H04L 41/00 (2013.01); H04L 47/70 (2013.01)] | 15 Claims |

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1. A method of synchronizing a communication network, the method comprising:
obtaining, by a network management system, a quality parameter of at least two or more synchronization sources connected to communication nodes in the communication network and a capacity parameter of the communication nodes connected to the synchronization sources;
selecting, by the network management system, a synchronization source to be used for synchronization of the communication network from among the at least two or more synchronization sources, according to a priority calculated based on the obtained quality parameter and capacity parameter; and
transmitting, by the network management system, a setting signal for setting the communication nodes in the communication network for synchronization of the communication network using a synchronization signal provided from the selected synchronization source.
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