Invention Grant
US07770092B2 Method for iterative decoding in a digital system and apparatus implementing the method
有权
数字系统中的迭代解码方法和实现该方法的装置
- Patent Title: Method for iterative decoding in a digital system and apparatus implementing the method
- Patent Title (中): 数字系统中的迭代解码方法和实现该方法的装置
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Application No.: US11323909Application Date: 2005-12-29
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Publication No.: US07770092B2Publication Date: 2010-08-03
- Inventor: Andrea Concil , Andrea Giorgi , Stefano Valle
- Applicant: Andrea Concil , Andrea Giorgi , Stefano Valle
- Applicant Address: IT Agrate Brianza
- Assignee: STMicroelectronics S.r.l.
- Current Assignee: STMicroelectronics S.r.l.
- Current Assignee Address: IT Agrate Brianza
- Agency: Seed IP Law Group PLLC
- Agent Lisa K. Jorgenson; Robert Iannucci
- Main IPC: H03M13/03
- IPC: H03M13/03

Abstract:
In a digital system using a turbo code, a method for performing iterative decoding in accordance with a Log-MAP Algorithm comprises the steps of:—generating a look-up table comprising a plurality of values representative of a correcting factor;—performing a first calculation to obtain a forward metric;—performing a second calculation to obtain a backward metric;—performing a third calculation to obtain a log-likelihood ratio for every information bit to be decoded. In accordance with the method, at least one and no more than two of such calculations are performed by the use of said look-up table for implementing the Log-MAP decoding algorithm and the remaining calculations are performed implementing a Max-Log-MAP decoding algorithm.
Public/Granted literature
- US20070157063A1 Method for iterative decoding in a digital system and apparatus implementing the method Public/Granted day:2007-07-05
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