Patent ID: 9559927
Date: 2017-01-31
CPC Classifications: H04L

Claim:
1. A system of measuring a network state comprising: a transmission terminal that transmits exploration packets at a transmission rate based on a network state measurement variable; and a reception terminal that receives the exploration packets to measure a One-way Trip Time (OTT) of each of the exploration packets, calculates a queuing delay using an average value of the measured OTTs and a minimum value of the measured OTTs, generates the network state measurement variable based on the calculated queuing delay, and transmits the network state measurement variable to the transmission terminal, wherein the exploration packet includes a validity authentication field, the transmission terminal compares a difference between a current time of the point of transmission of the exploration packet to a transmission socket and a timestamp value of the exploration packet with a predetermined first reference time (T the reception terminal measures the OTT based on the validity authentication field.