Method for measuring end-to-end delay in asynchronous packet transfer network, and asynchronous packet transmitter and receiver
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United States of America Patent
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Nov 16, 2010
Grant Date -
May 3, 2007
app pub date -
Aug 14, 2006
filing date -
Nov 3, 2005
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Abstract
Provided are a method for measuring an end-to-end delay, and asynchronous packet transmitter/receiver, capable of conveniently and exactly measuring a packet delay in an asynchronous packet transfer network in which a transfer priority is determined as in MPLS. The method includes the steps of continuously transmitting a higher priority packet and a lower priority packet at an ingress node, measuring a time when the higher priority packet arrives at an egress node, measuring a time when the lower priority packet arrives at the egress node, and calculating a delay time from the arrival time of the higher and lower priority packets. The higher and lower priority packets each include Coupled Label and Sequence Number fields for discriminating one of the packets that are repeatedly transmitted, the Coupled Label field of the higher priority packet is recorded with a label value of the lower priority packet, and the Coupled Label field of the lower priority packet is recorded with a label value of the higher priority packet.
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
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Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Lee, Soon Seok | Daejeon, KR | 37 | 415 |
Song, Jong Tae | Daejeon, KR | 6 | 36 |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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