| US 7,577,893 B2 | ||
| Forward error correction decoding method and apparatus for satellite digital audio radio broadcasting | ||
| Jie Song, Macungie, Pa. (US); and Robert Conrad Malkemes, Bethlehem, Pa. (US) | ||
| Assigned to Agere Systems Inc., Allentown, Pa. (US) | ||
| Filed on Jun. 07, 2006, as Appl. No. 11/448,616. | ||
| Prior Publication US 2007/0288827 A1, Dec. 13, 2007 | ||
| Int. Cl. H03M 13/29 (2006.01) | ||
| U.S. Cl. 714—755 | 14 Claims |
| 1. An iterative decoder method for decoding concatenated channel code consisting of convolution code and Reed-Solomon (RS)
code, said method comprising:
performing inner code decoding of a data block using a Maximal a posteriori (MAP) algorithm to generate hard decision information;
utilizing said hard decision information in an RS decoder algorithm to attain an RS decoder output and an RS decoder Error
Flag; and,
supplying said RS decoder output and said RS decoder Error Flag to said MAP algorithm.
|