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Header error detection for wireless data cells

  • US 6,628,641 B1
  • Filed: 12/24/1997
  • Issued: 09/30/2003
  • Est. Priority Date: 12/24/1997
  • Status: Expired due to Term
First Claim
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1. A transceiver for receiving and transmitting data cells over a wireless interface, said transceiver comprising:

  • a block processor having a transmit path for reconfiguring cells for transmission over the wireless interface and a receive path for receiving transmitted signals and processing received reconfigured cells;

    wherein said block processor includes;

    a transmit header processor for assembling a new header for a cell to be transmitted, including;

    means for extracting a Header Error Check (HEC) from said cell, and means for calculating and inserting an Exended Header Error Check (EHEC) into said cell header;

    a receive header processor, including;

    means for extracting EHEC from a received cell, means for replacing said EHEC with an HEC, and means for detecting errors in said received cell header; and

    means for discarding a received cell if an error in the header is detected.

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