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Data rate shifting methods and techniques

  • US 7,355,997 B2
  • Filed: 05/07/2004
  • Issued: 04/08/2008
  • Est. Priority Date: 05/07/2004
  • Status: Expired due to Fees
First Claim
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1. A method to optimize communications, comprising:

  • monitoring a performance parameter of a channel, the performance parameter being at least one selected from the group of throughput rate and packet rate loss;

    monitoring signal quality;

    switching to a lower data rate after the performance parameter indicates a decrease in performance and the signal quality has degraded;

    continuing to monitor the performance parameter after switching to the lower data rate;

    comparing the performance parameter after switching to the lower data rate with the performance parameter before switching to the lower data rate; and

    switching to a higher date rate after the comparison determines that the performance parameter after switching to the lower data rate did not improve by a predetermined threshold;

    wherein the performance parameter that indicates a decrease in performance is at least one of the throughput rate decreasing and the packet loss rate increasing.

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