| 摘要 |
PROBLEM TO BE SOLVED: To provide a method that avoids the radio communication speed from being restricted by hardware or software of a mobile terminal, prevents the change to content from being lost even when the communication is disconnected between the mobile terminal and its access point, and allows a cloud-side or a radio communication device to manage the lifetime of the content downloaded to the mobile terminal.SOLUTION: An information processing system includes a radio communication device 112, an access point 120, and a management server 140. The management server provides content requested by a user to the radio communication device and sends a content keep-alive packet to manage the lifetime of the content. The radio communication device stores the content provided by the management server on a volatile memory, upon request for change to the content, stores the difference data on non-volatile memory, and deletes the content stored on the volatile memory when communication with the access point is disconnected or the packet is not received.SELECTED DRAWING: Figure 1 |
