Methods and systems for terminating an iterative decoding...

Details Methods and systems for terminating an iterative decoding... Methods and systems for terminating an iterative decoding...

2007-08-15

2011-12-27

Alphonse, Fritz (Department: 2112)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital data error correction

C714S755000, C714S786000, C714S799000

Reexamination Certificate

active

08086928

ABSTRACT:
The invention provides methods and systems for terminating an iterative decoding process of a Forward Error Correction block (FEC). The iterative decoding process of the FEC block is terminated upon determining that the FEC block cannot be decoded successfully. A method comprises calculating a metric based on one or more Log Likelihood Ratios (LLRs) corresponding to a first number of iterations of the iterative decoding process of the FEC block. The method further comprises, formulating one or more stopping criteria for the iterative decoding process based on a variation pattern of the metric over a second predetermined number of iterations of the iterative decoding process. The second predetermined number of iterations is a subset of the first number of iterations. Moreover, the method comprises terminating the iterative decoding process of the FEC block based on the one or more stopping criteria.

REFERENCES:
patent: 6865708 (2005-03-01), Wang
patent: 7266750 (2007-09-01), Patapoutian et al.
patent: 7673213 (2010-03-01), Chugg et al.
patent: 7765453 (2010-07-01), Duggan
patent: 7783958 (2010-08-01), Eidson et al.
patent: 2006/0107193 (2006-05-01), Park et al.

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