The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 21, 2012
Filed:
Apr. 11, 2007
Jinshan Wang, Shenzhen, CN;
Jinshan Wang, Shenzhen, CN;
ZTE Corporation, Shenzhen, CN;
Abstract
A decoding method for LDPC codes based on BP algorithm, includes initializing LLR (q) with the received LDPC bit stream; updating the check node LLR (r) and variable node LLR (q): after updating the LLR (r) corresponding to nonzero elements in each row in check matrix H in each iteration; immediately updating the LLR (q) corresponding to all the nonzero elements in the column which has a nonzero element in the row, and repeating the updating row by row; updating LLR (q) on the basis of LLR (r); terminating decoding process if maximum number of allowed iterations is reached or the correct result obtained and outputting the final decoding result x; The method of the present invention may accelerate the decoding convergence, and reduce the number of iterations to increase the throughput, further reduce the power consumption and silicon area of decoding apparatus possible if LLR (q) is properly approximated.