Method and apparatus for file sharing between a group of user devices with separately sent crucial portions and non-crucial portions

摘要

A communication system 100 includes a group of user devices 110 and a content delivery network 120 in communication with the group of user devices 110. The content deliver network 120 selects a plurality user devices from the group of user devices 110, divides the content into a crucial portion and a non-crucial portions. The content delivery network 120 communicates the non-crucial portions to the plurality of user devices and communicates the crucial portion to the plurality of user devices separately from the non-crucial portions and at each of the plurality of user devices. The plurality of user devices 110 assembles the crucial portion and the non-crucial portions to form the content.