SYSTEM AND METHOD FOR PROVIDING VIDEO-ON-DEMAND (VOD) SERVICE IN NETWORK

摘要

A system for providing Video-on-Demand (VOD) service in a network includes a plurality of user devices and a server. Activation of an allowed transmission mode or a peer-to-peer transmission mode is dependent on whether a peer-to-peer transmission function of a first user device of the user devices is limited or not. The first user device calculates respective transmission rates of the two transmission modes to determine their respective download ranges. The transmission mode having a higher transmission speed downloads data close to a start of the target data and another transmission mode having a lower transmission speed downloads data close to an end of the target data. Based on the target data temporarily stored in other user devices, the first user device assigns each of the two transmission modes a download sequence of a plurality of clips of the target data to download the clips of the target data.

主权项

1. A network video-on-demand (VOD) service system, comprising:
a plurality of user devices; and a server, coupled to the user devices; wherein in downloading a target data, if a P2P (peer-to-peer) transmission function of a first user device of the user devices is limited, the first user device activates an allowed transmission mode; if the P2P transmission function of the first user device is not limited, the first user device selectively activates the allowed transmission mode and a P2P transmission mode; the first user device analyzes respective transmission rates of the allowed transmission mode and the P2P transmission mode to determine respective download ranges of the allowed transmission mode and the P2P transmission mode; one of the allowed transmission mode and the P2P transmission mode having a higher transmission rate downloads a region close to a start of the target data while the other of the allowed transmission mode and the P2P transmission mode having a lower transmission rate downloads a region close to an end of the target data; and based on a target data storage status of other user devices, the first user device assigns download sequences of the allowed transmission mode and the P2P transmission mode in downloading a plurality of clips of the target data, to download the clips of the target data.