Scheduling data transfers for multiple use requests
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United States of America Patent
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Issued Date -
Aug 5, 2004
app pub date -
Jan 31, 2003
filing date -
Jan 31, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention is directed to scheduling the transfer of data for delivery to multiple nodes in a communications network. An intermediary node in the network receives requests from multiple end nodes for delivery of the same data. The intermediary node creates individual bandwidth schedules for delivering the requested data to the end nodes. The intermediary node issues a scheduling request to obtain the data from a data source in the network. The intermediary generates a composite bandwidth schedule to accompany the scheduling request, based on the individual bandwidth schedules. The composite bandwidth schedule identifies amounts of data required at different time intervals to satisfy data demands of the individual bandwidth schedules. In one embodiment, the composite bandwidth schedule identifies a latest possible schedule for the intermediary to receive the data and meet the demands of the individual bandwidth schedules. A data source receiving the composite bandwidth schedule and scheduling request generates a send bandwidth schedule for delivering the data to the intermediary. The send bandwidth schedule provides data that satisfies the composite bandwidth schedule without violating resource constraints at the data source.
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