公开(公告)号：KR1020080059897A

公开(公告)日：2008-07-01

申请号：KR1020060133815

申请日：2006-12-26

Applicant: 한국정보통신대학교 산학협력단

Inventor： 최광진 ,  최준균 ,  이영로 ,  하상용 ,  김진철 ,  조용현 ,  류지연

IPC: H04L12/26 ,  H04L12/841

CPC classification number: H04L47/18 ,  H04L43/0858 ,  H04L43/106

Abstract: A method for measuring an end-to-end available bandwidth using a time stamp message and a one-way delay time difference in an IP(Internet Protocol) packet network is provided to exactly measure an end-to-end available bandwidth as an origination point and a destination point transmits and receives packets and messages after inserting a new header field next to an IP header. An origination point(201) transmits at least one packet having a specific bit rate to a destination point(203). Receiving the packet, the destination point measures a change in one-way delay time, based on the time stamp message and bit rate contained in the packet. Using the measured one-way delay time, the destination point estimates an available bandwidth, inserts the estimated available bandwidth in the packet, and transmits it to the origination point. Based on the estimated available bandwidth, the origination point adjusts the bit rate of the packet and retransmits it to the destination point.

Abstract translation: 提供了一种使用时间戳消息和IP（因特网协议）分组网络中的单向延迟时间差来测量端到端可用带宽的方法，以精确地测量端到端可用带宽作为发起 点和目的地点在IP头之后插入新的头字段之后发送和接收分组和消息。 发起点（201）将具有特定比特率的至少一个分组发送到目的地点（203）。 根据分组中包含的时间戳消息和比特率，接收分组，目的地点测量单向延迟时间的变化。 使用测量的单向延迟时间，目的地点估计可用带宽，将估计的可用带宽插入到分组中，并将其发送到始发点。 基于估计的可用带宽，起始点调整分组的比特率并将其重新发送到目的地点。