Absorb decode algorithm for 10GBase-T LDPC decoder

Details Absorb decode algorithm for 10GBase-T LDPC decoder Absorb decode algorithm for 10GBase-T LDPC decoder

2008-01-16

2011-11-01

Baker, Stephen (Department: 2112)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital data error correction

C714S759000, C714S760000

Reexamination Certificate

active

08051363

ABSTRACT:
Systems and methods are provided for correcting absorb sets and near absorb sets in the (2048, 1723) LDPC code used in 10GBase-T transmission systems. Absorb sets and near absorb sets correspond to error patterns that, due to the structure and imperfections of the LDPC code, cannot easily be corrected using standard correction methods. To correct these error patterns, a set of failed syndrome checks associated with the error pattern can be identified, and the 4, 8, 12, or 16 error patterns associated with the failed syndrome checks can be determined. The codeword may then be corrected based on the error pattern that most likely occurred.

REFERENCES:
patent: 7653862 (2010-01-01), Hassner et al.
patent: 7716553 (2010-05-01), Kim et al.
patent: 7814402 (2010-10-01), Gaudet et al.
patent: 2006/0190797 (2006-08-01), Xin
patent: 2007/0033484 (2007-02-01), Kim et al.
Part 3: Carrier Sense Multiple Access with Collision Detection (CSMA/CD) Access Method and Physical Layer Specifications Amendment 1: Physical Layer and Management Parameters for 10 Gb/s Operation, Type 10GBASE-T, IEEE Std 802.3an™-2006 (Amendment to IEEE Std 802.3™-2005) pp. 1-167 (Sep. 2006).

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