| 摘要 |
A cache server includes an accumulation unit that accumulates a content(s) stored in a delivery server apparatus. The cache server, by using information included in a request message from a mobile terminal, determines which one of the cache servers arranged on a mobile network accumulates a content requested by the mobile terminal. The cache server reads a file corresponding to the requested content from the determined cache server and outputs the file to the accumulation unit. In addition, the cache server estimates a bandwidth of the mobile network based on a signal from the mobile terminal, reads the file corresponding to the requested content from the accumulation unit, and extracts a stream from the file. The cache server generates a stream by deleting at least part of frames from the stream so that a bit rate of the generated stream does not exceed the band. The cache server stores the generated stream in a packet and transmits the packet to the mobile terminal. |
