Patent ID: 7072861

Claim:
A digital content downloading method using a network in which digital content is downloaded, comprising the steps of: receiving through a network information designating a desired digital content selected by a consumer terminal and a desired digital content transmission condition related to quality of communication selected by the consumer terminal, at a digital content retailer computer system possessing the desired digital content; sending a request from the digital content retailer computer system to a resource reservation server of a network operator computer system, for a reservation for the network managed by the network operator computer system according to the desired digital content transmission condition sent from the consumer terminal; providing from the digital content retailer computer system the desired digital content designated by the information, to the consumer terminal through the network reserved by the digital content retailer computer system at the desired digital content transmission condition sent from the consumer terminal; collecting from the consumer terminal, by the digital content retailer computer system, a charge for the desired digital content, the charge including a transmission charge corresponding to the desired digital content transmission condition; and paying, by the digital content retailer computer system, the transmission charge to the network operator computer system.