Apparatus and method for implementing a linearly approximated log map algorithm
US6757701B2 · kind B2 · utility
6Cited by
6References
34Claims
0Family size
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Key dates
| Filing date | Aug 3, 2001 |
| Grant date | Jun 29, 2004 |
| Priority date | — |
| Expiry date | Feb 22, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/3911
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for implementing a linearly approximated Log MAP algorithm, the implementation involves calculating MAX*(a(n),b(n)) function, the method having the steps of: (A) Receiving a(n), b(n) and a value DE; (B) calculating (a(n)+b(n)+DE/2 and generating at least one intermediate result, the at least one intermediate result reflecting at least one relationship between at least two elements out of a(n), b(n) and DE; and (C) providing an MAX*(a(n),b(n)) result selected from a group comprising of a(n), b(n) or (a(n)+b(n)+DE)/2, the selection dependent upon the at least one intermediate result.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.