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Communication apparatus, communication system, and communication method

  • US 8,923,367 B2
  • Filed: 09/12/2012
  • Issued: 12/30/2014
  • Est. Priority Date: 09/28/2011
  • Status: Expired due to Fees
First Claim
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1. A communication apparatus comprising:

  • a transmitter that transmits a first message to another communication apparatus;

    a receiver that receives a second message from the other communication apparatus; and

    a processor that performs time synchronization using the first message and the second message;

    wherein the processor generates information regarding a delay in a communication processing of the first message in the transmitter and the second message in the receiver in a communication layer in communication with the other communication apparatus, and the processor performs the time synchronization with the other communication apparatus based on the information regarding the delay in a time synchronization layer above the communication layer,wherein the time synchronization includes at least one of subtracting the delay in the communication processing from a receiving time of the second message received by the receiver and adding the delay in the communication processing to a transmitting time in the first message transmitted by the transmitter.

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