Patent ID: 8386894
Filing Date: 2013-02-26
Classification: H03M,H04L

Abstract:
1. In a communication device receiver, a method for parallel processing data forward error correction (FEC) protected with multiple codewords using inner and outer decoding, the method comprising: accepting an electrical waveform representing a digital wrapper frame of FEC codewords; calculating a first set of syndromes for a first codeword; in parallel with the calculation of the first set of syndromes, calculating a second set of syndromes for a second codeword with a data component selected from a group consisting of payload, parity, and a combination of payload and parity, shared with the first codeword; using the first set of syndromes, performing an error magnitude and location (EML) of the first codeword; using the second set of syndromes, performing an EML of the second codeword in parallel with the EML of the first: codeword; and, supplying electrical waveforms representing the EMLs of the first and second codewords.