COMMUNICATION CONTROL DEVICE AND COMMUNICATION CONTROL METHOD

In the related art, since there is a difference in communication delay time in a round-trip communication path due to packet clogging in a network configuration using a network relay device, there is a problem that time cannot be synchronized. In order to solve the above problem, in the present inve...

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Bibliographische Detailangaben
Hauptverfasser:	TAKAMI Kazuhisa, YOSHIDA Shoji, ENDO Takamichi, MARUYAMA Tatsuya, KIDO Mitsuyasu
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY MULTIPLEX COMMUNICATION TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Beschreibung
Zusammenfassung:	In the related art, since there is a difference in communication delay time in a round-trip communication path due to packet clogging in a network configuration using a network relay device, there is a problem that time cannot be synchronized. In order to solve the above problem, in the present invention, a time synchronization unit 131 is controlled by the time synchronization control unit 130 to perform time synchronization once, delays of an egress path and an ingress path of the time packet on the basis of the synchronization time are calculated, and time synchronization processing is executed using a time of the time packet in a case where the calculated values are equal to each other.