File repair method for a content distribution system
AssigneeThomson Licensing
InventorsEric Gautier, Rémi Houdaille, Willem Lubbers
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Abstract
The present invention concerns a file repair method for recovering a file, in a system for distributing content to more than one receiver, comprising, at a first receiver, the steps of receiving a set of files in a push multicast from a transmitter, receiving an identifier of a second receiver that owns a missing file that is not comprised in the received set of file; and recovering the missing file from the second receiver in a pull mode using a peer-to-peer mechanism. Another object of the invention is a method for file recovery in a server and in a peer device.
Claims3
File repair method for recovering a file, for use in a system for distributing content from a transmitter to more than one receiver, said system comprising a centralized index server, said method comprising, at a first receiver, the steps of:
- receiving a set of files in a push multicast content delivery step from said transmitter;
- delivering a multicast status by reporting the received files to a said centralized index server;
- receiving from said centralized index server an identifier of a second receiver that owns a missing file that is not comprised in said received files;
- and
- recovering said missing file from said second receiver in a pull mode using a peer-to-peer mechanism.
File repair method for recovering a file, for use in a system for distributing content from a transmitter to more than one receiver, said system comprising a centralized index server, said method comprising, at a first receiver, the steps of:
- receiving the identifier of a set of files to be received;
- receiving a set of files in a push multicast content delivery step from said transmitter;
- detecting a missing file among the received set of files;
- delivering a multicast status by reporting said missing file to a said centralized index server;
- receiving from said centralized index server an identifier of a second receiver that owns a missing file that is not comprised in said received set of files;
- and
- recovering said missing file from said second receiver in a pull mode using a peer-to-peer mechanism.
Dependencies are inferred from the claim text.