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Segmentation of data transmission units into fixed size segments

  • US 20030072329A1
  • Filed: 10/04/2001
  • Published: 04/17/2003
  • Est. Priority Date: 10/17/2000
  • Status: Abandoned Application
First Claim
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1. A method of dividing a data transmission unit (DTU) of unknown size into segments each having a fixed predetermined size, the method comprising:

  • a) receiving the DTU at an input port;

    b) determining a connection identifier for the DTU;

    c) determining a size of the DTU;

    d) dividing the DTU into portions, each portion having a size not exceeding a predetermined portion size;

    e) storing each of the portions in a segment, the segment having a fixed predetermined size;

    f) storing the connection identifier in a connection identifier field in each segment;

    g) setting a full field in each segment which has a payload section that is fully occupied by a portion from the DTU; and

    h) setting an end of package (EOP) field in a last segment containing the last portion of the DTU.

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