| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a distribution network system for avoiding impairment of QoE of a user, by avoiding access concentration to a distribution server. <P>SOLUTION: Two or more servers (cash server or proxy server) are provided on a mobile network. Each server comprises: an accumulation part 113 for temporarily accumulating a copy of a content for at least part of contents retained by a distribution server; a content list creation part 118 for creating a list of the content accumulated by the accumulation part; and a collection part 116 for collecting the content list of the content accumulated by the server and a content list of contents accumulated by other servers. Each server also comprises: an identification part 117 for identifying a server having a content requested by a terminal by using the content list collected by the collection part; and an assurance part 112 for reading out a file or stream of the content requested by the terminal from the identified server, considering coordination between the servers. <P>COPYRIGHT: (C)2013,JPO&INPIT |
