DISTRIBUTION OF MULTICAST DATA TO USERS

摘要

A method of multicasting a data file. The method includes transmitting a notification on an upcoming multicast transmission to a plurality of receivers designated to receive the multicast transmission, tuning by at least one of the plurality of receivers to one or more multicast channels, responsive to the notification, transmitting a data file, from a data server, on the one or more multicast channels, without the data server receiving acknowledgements from the receivers on whether they received the notification, determining receivers designated to receive the multicast transmission that did not receive at least a portion of the data file; and attempting to deliver the data file to the determined receivers.