Dynamic mapping of broadcast resources
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Abstract
In a data communication system such as a high capacity DBS system, dynamic mapping of broadcast resources is provided to exploit occasional redundancy in the program content of two or more input data streams, freeing at least one broadcast resource to carry alternate bitstreams, such as additional programs or existing programs at higher quality. Transmission maps defining the correspondence between input data streams and broadcast resources, and reception maps defining the correspondence between broadcast resources and output data streams, are updated as needed to dynamically modify broadcast resource mapping to increase effective utilization of available bandwidth. Beneficial n:n-y:m mapping in a high capacity consumer DBS entertainment system is provided. Apparatus and methods for efficiently generating, maintaining and updating allocation maps with reduced overhead requirements, are disclosed.
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Citations
34 Claims
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1-16. -16. (canceled)
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17. A method of carrying a plurality input data streams on n2 broadcast resources in a communication system, comprising:
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detecting a period of substantially common content in n1 input data streams wherein n1≧
2; and
transmitting the substantially common content via n3 broadcast resource(s) wherein n3<
n1. - View Dependent Claims (18, 19, 20, 21, 22)
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23. An apparatus for carrying a plurality input data streams on n2 broadcast resources in a communication system, comprising:
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means for detecting a period of substantially common content in n, input data streams wherein n1≧
2; and
means for transmitting the substantially common content via n3 broadcast resource(s) wherein n3<
n1. - View Dependent Claims (24, 25, 26, 27, 28)
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29. An apparatus for carrying a plurality input data streams on n2 broadcast resources in a communication system, comprising:
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a map generator for detecting a period of substantially common content in n, input data streams wherein n1≧
2; and
means for transmitting the substantially common content via n3 broadcast resource(s) wherein n3<
n1. - View Dependent Claims (30, 31, 32, 33, 34)
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Specification