System and method for pre-provisioning adaptive bitrate (ABR) assets in a content delivery network

摘要

A system and method for pre-provisioning ABR assets in a content delivery network (CDN). In an example, historical delivery patterns of one or more ABR assets downloaded at respective content delivery nodes of the CDN are monitored. For each content delivery node, one or more delivery rules may be determined based on statistical distributions of the ABR assets delivered over a period of time. When a particular content is determined to become popular at a specific content delivery node, a pre-provisioning policy may be modulated such that only certain representations or adaptation sets of the particular content's assets that pass the delivery rules are pre-provisioned for the specific content delivery node.

主权项

1. A method operative at a management node associated with a content delivery network (CDN) configured to deliver adaptive streaming content, the method for effectuating efficient usage of network resources of the CDN and comprising:
obtaining historical delivery patterns of one or more adaptive bitrate (ABR) assets associated with one or more content delivery nodes of the CDN, wherein the historical delivery patterns corresponding to a particular content delivery node comprise distributions of the one or more ABR assets of various content files that are delivered from the particular content delivery node over a configurable time window to a plurality of subscribers served by the particular content delivery node; determining, for each content delivery node, one or more delivery rules based on the distributions of the ABR assets delivered over the configurable time window; obtaining a push policy for a particular content determined to become popular at a specific content delivery node, the push policy operating to facilitate pre-provisioning of the particular content at the specified content delivery node, and modulating the push policy to pre-provision only certain subsets of the one or more ABR assets of the particular content for delivery at the specific content delivery node based on the one or more delivery rules established for the specific content delivery node; and providing the modulated push policy to at least one of a central distribution node and a regional distribution node of the CDN for minimizing bandwidth cost for transmitting the particular content through the CDN with respect to servicing subscriber requests for the particular content at the specific content delivery node.