Patent ID: 6189123
Filing Date: 2001-02-13
Classification: H04L

Abstract:
A method for selectively iteratively increasing redundancy of a block of digital information communicated by a sending station to at least one receiving station in a digital communication system, said method comprising the steps of:parallel-concatenated coding the block of digital information to form a plurality of encoded versions of the block of the digital information;selecting from among the plurality of encoded versions a first portion that is to be transmitted and a corresponding remaining portion that is not to be transmitted;transmitting the first portion from the sending station to the receiving station without the remaining portion;selecting from among the plurality of encoded versions a second portion to be transmitted; andinitiating transmission of the second portion from the sending station to the receiving station if the block of digital information at the receiving station is unrecoverable with at least a selected level of accuracy, the second portion having at least one part which is dissimilar with the first portion transmitted during said step of transmitting.