公开(公告)号：WO2014155031A1

公开(公告)日：2014-10-02

申请号：PCT/GB2014/000078

申请日：2014-03-04

Applicant: BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY

Inventor： APPLEBY, Stephen Clifford ,  TURNBULL, Rory Stewart ,  NILSSON, Michael Eilling ,  CRABTREE, Ian Barry ,  ALLAN, Brahim ,  STEVENS, Timothy Sean

IPC: H04L12/801

CPC classification number: H04L47/25 ,  H04L43/0835 ,  H04L47/127 ,  H04L47/28

Abstract: Examples of the present invention present a method of controlling content delivery in a network. A global quality of experience measure, QoE max , is calculated based on the packet loss rate in the network. As packet loss rate varies as a result of congestion conditions in the network, so will QoE max . A server delivering content over the network will attempt to reach QoE max for the content in its respective session. Those sessions with a quality of experience, QoE, less than QoE max will have its packet dispatch rate increased, and those with a QoE higher than QoE max will reduce its packet dispatch rate, subject to any delivery deadlines associated with the session. If the delivery deadlines of the sessions can be met without exceeding QoE max , then all sessions will end up achieving QoE max . Since QoE max is only a function of packet loss rate that all sessions running over the same shared network agree upon, all sessions should converge on the same QoE.

Abstract translation: 本发明的示例提出了一种控制网络中的内容传递的方法。 基于网络中的丢包率计算全球体验质量测量QoEmax。 由于分组丢失率由于网络中的拥塞状况而变化，因此QoEmax也将随之而变化。 通过网络传送内容的服务器将尝试达到其各自会话内容的QoEmax。 具有经验质量的QoE，小于QoEmax的QoE会使其数据包发送速率提高，QoE高于QoEmax的会话会降低其分组发送速率，但会话与会话有任何交付期限。 如果可以满足会议的交付期限而不超过QoEmax，则所有会话将最终达到QoEmax。 由于QoEmax只是在同一共享网络上运行的所有会话同意的丢包率的函数，因此所有会话都应该收敛于相同的QoE。