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Method and device for the reliable transmission of compressed network headers

  • US 8,576,816 B2
  • Filed: 12/04/2008
  • Issued: 11/05/2013
  • Est. Priority Date: 12/07/2007
  • Status: Active Grant
First Claim
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1. A method for transmitting data in a transmission system, the data being transmitted in the form of packets comprising at least one compressed header field and one data payload field and according to a format suited to the transmission system comprising the following steps:

  • recovering the data packet to be transmitted which comprises a compressed header field and a payload field, identifying the header part from the payload field;

    applying a selected forward error corrector (FEC) coding to the compressed header field of the data packet, and providing to a link layer a resulting new packet comprising the FEC coded compressed header and the uncoded payload, while also communicating a protection mode of the selected FEC coding;

    generating the link layer header according to the transmission format of the transmission system integrating said protection mode, and an adaptation of a CRC checksum of the link layer; and

    on reception, performing error corrector decoding in two steps, based on the protection mode integrated in the link layer header, said two steps including;

    a first step of decoding a first part of the FEC coded compressed header, making it possible to deduce information regarding a size of the compressed header,a second step of decoding a remainder of the FEC coded compressed header on the basis of the previously determined size information.

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