| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To perform discrimination whether packet delay cause is due to a simple delay or caused by retransmission carried out because of a loss. <P>SOLUTION: The apparatus compares a next sequence number that is a sequence number which the present packet should have and a sequence number of the present packet, compares an identifier of a preceding packet and an identifier of the present packet, when the next sequence number agrees with a sequence number of the present packet, and the identifier of the preceding packet continues to the identifier of the present packet, it discriminates the delay as a simple delay, and when the identifier of the preceding packet does not continue to the identifier of the present packet, it discriminates the delay as a delay by retransmission. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
