Method and apparatus for improved multicast streaming in wireless networks

摘要

The invention includes a method and apparatus for providing media content. The method includes duplicating each packet of an original packet stream for which an associated importance level satisfies an importance condition, inserting each duplicate packet within the original packet stream to form thereby a modified packet stream, and transmitting the modified packet stream toward a wireless terminal adapted for processing the modified packet stream for presenting the media content conveyed by the original packet stream. The duplicate packets may be inserted within respective windows associated with the duplicate packets, wherein each window is determined according to an original packet position associated with the original packet from which the duplicate packet is formed.

主权项

1. A method for presenting media content at a mobile node using a presentation stream, comprising:
receiving a data packet stream comprising a plurality of data packets, wherein the plurality of data packets comprises at least one important data packet having an importance level satisfying an importance condition; receiving an error correction packet stream comprising a plurality of error correction packets, each of the error correction packets associated with at least one data packet of the data packet stream, wherein each error correction packet of selected error correction packets has a first error correction level associated therewith, wherein at least one of the error correction packets associated with the at least one important data packet has a second error correction level associated therewith, wherein the second error correction level is greater than the first error correction level; and processing the data packet stream for generating the presentation stream, wherein the error correction packets of the error correction packet stream are adapted for use in detecting and correcting errors in the plurality of data packets of the data packet stream.