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Method and system for communicating data in xDSL using data retransmission

  • US 8,320,248 B2
  • Filed: 09/11/2007
  • Issued: 11/27/2012
  • Est. Priority Date: 09/13/2006
  • Status: Active Grant
First Claim
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1. A method for communicating data between a first device and a second device, comprising:

  • defining a data transmission unit (DTU) to be sent in an xDSL data stream;

    defining a retransmit container as a time slot that corresponds to the DTU;

    maintaining a copy of the DTU and the retransmit container at the first device, wherein the retransmit container is maintained at the second device independently of the first device;

    transmitting the DTU in the xDSL data stream to the second device;

    determining that the DTU was corrupted during transmission;

    identifying the DTU based on the retransmit container; and

    retransmitting the DTU.

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