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Controller providing gradual transition of multiple terminals from unicast transmission

  • US 9,374,231 B2
  • Filed: 03/22/2010
  • Issued: 06/21/2016
  • Est. Priority Date: 03/22/2010
  • Status: Active Grant
First Claim
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1. A method comprising:

  • identifying a plurality of terminals receiving a given content stream via respective unicast transmissions, two or more of the unicast transmissions being temporally offset from one another;

    starting a multicast transmission of the given content stream responsive to detecting that the unicast transmissions of the given content stream meet a first threshold;

    identifying a first one of the plurality of terminals based on temporal offsets between a unicast transmission to the first terminal and respective unicast transmissions to remaining ones of the plurality of terminals;

    transitioning the first terminal to the multicast transmission;

    adjusting relative rates of the multicast transmission and the respective unicast transmissions to the remaining ones of the plurality of terminals; and

    transitioning another one of the plurality of terminals to the multicast transmission responsive to detecting that a temporal offset between the multicast transmission and a unicast transmission to the other terminal is less than a second threshold;

    wherein the method is implemented by at least one processing device comprising a processor coupled to a memory.

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