Iteration terminating using quality index criteria of turbo codes
US6738948B2 · kind B2 · utility
45Cited by
2References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 9, 2001 |
| Grant date | May 18, 2004 |
| Priority date | — |
| Expiry date | Sep 21, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/2975
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method of terminating iteration calculations in the decoding of a received convolutionally coded signal includes a first step of providing a turbo decoder with a first and second recursion processors connected in an iterative loop. Each processor has an associated extrinsic input and output. A next step includes cross-correlating the input and output of at least one of the processors to provide a cross-correlation value at each iteration. A next step includes terminating the iterations when the measure of the cross-correlation value index exceeds a predetermined threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.