Patent · US Active

Implementation of LLR biasing method in non-binary iterative decoding

US8910028B1 · kind B1 · utility

10Cited by

1References

20Claims

0Family size

Assignee

Marvell International Ltd. · BM

Inventors

Shu Li · Bothell, US
Yifei Zhang · Beijing, CN
Wei CAO · Shanghai, CN

Key dates

Filing date	Oct 25, 2012
Grant date	Dec 9, 2014
Priority date	—
Expiry date	Dec 1, 2032

Classification

Technology area (CPC H)Electricity
CPC primaryH03M13/4138
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

Systems, methods, and apparatus are provided for iteratively decoding a codeword. Once a codeword is received, the codeword is processed to generate an incremental hard decision value and a log likelihood ratio amplitude value. These values are generated by processing the codeword using a soft output Viterbi algorithm. A faulty symbol in the codeword is identified. A complete hard decision value is generated using the incremental hard decision value. The LLR amplitude value and complete hard decision value corresponding to the identified faulty symbol are selectively provided to a decoder and the decoder uses these values to decode the codeword.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.