公开(公告)号：US20160057064A1

公开(公告)日：2016-02-25

申请号：US14779694

申请日：2014-03-04

Applicant: BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY

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

IPC: H04L12/825 ,  H04L12/801 ,  H04L12/841 ,  H04L12/26

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, QoEmax, 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 QoEmax. A server delivering content over the network will attempt to reach QoEmax for the content in its respective session. Those sessions with a quality of experience, QoE, less than QoEmax will have its packet dispatch rate increased, and those with a QoE higher than QoEmax 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 QoEmax, then all sessions will end up achieving QoEmax. Since QoEmax is only a function of packet loss rate that all sessions miming 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的会话会降低数据包发送速率，但需要遵守与会话相关的任何交付期限。 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只是所有在同一个共享网络上模仿的会话的分组丢失率的函数，因此所有会话都应该收敛在相同的QoE上。