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Network-quality determining method and apparatus for use therewith

  • US 7,773,523 B2
  • Filed: 08/25/2005
  • Issued: 08/10/2010
  • Est. Priority Date: 08/26/2004
  • Status: Active Grant
First Claim
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1. A method for determining the quality of a network by an apparatus connected to said network, said method comprising:

  • receiving data being communicated between terminals which belong to said network; and

    determining whether data loss has occurred, comprising;

    deciding whether or not a receiving terminal is at a re-transmission requiring state where it is requiring data retransmission; and

    making a comparison between transmission-sequence-number information of said received data and transmission-sequence-number information of data which has been received up to previous reception;

    wherein, determining whether data loss has occurred further comprises determining that no data loss has occurred;

    when a result of said comparison shows that value of the transmission-sequence-number information of the data which has been received up to the previous reception is greater than a value of the transmission-sequence-number information of said received data, andwhen the receiving terminal is not at the re-transmission requiring state.

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