Method of calculating internal signals for use in a map algorithm
A method of calculating internal signals for use in a MAP algorithm is disclosed, comprising the steps of: obtaining first decoding signals by processing received systematic and received encoded symbols of each symbol sequence of a received signal; obtaining unnormalized second decoding signals for...
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| Main Authors | , |
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| Format | Patent |
| Language | English |
| Published |
12.08.2004
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| Online Access | Get full text |
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| Summary: | A method of calculating internal signals for use in a MAP algorithm is disclosed, comprising the steps of:
obtaining first decoding signals by processing received systematic and received encoded symbols of each symbol sequence of a received signal;
obtaining unnormalized second decoding signals for the current symbol sequence by processing the first decoding signals of the previous sequence and second decoding signals of the previous sequence;
obtaining unnormalized third decoding signals for the current symbol sequence by processing the first decoding signals of the current sequence and third decoding signals of the next sequence;
normalizing the unnormalized second and third decoding signals; and
wherein at least one of said second decoding signals of the previous sequence and said third decoding signals of the next sequence are unnormalised. |
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