Importance

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Abstract

A communication device comprising an ML-APP detector coupled to at least two antennas. The ML-APP detector comprises at least one Hx unit coupled to at least one LLR unit. The Hx unit generates a portion of all possible symbols that can be received and transfers each generated symbol candidate to the LLR unit which performs a conversion operation on the transferred symbol candidate to generate another symbol candidate that is not part of the special portion. In this manner all of the possible symbol candidates are obtained by the LLR unit. The LLR unit compares the symbol candidates to a received symbol to perform a cost calculation. The symbol candidate yielding the lowest cost from the cost calculations of all possible symbol candidates is selected as the best candidate. APP decoding is then performed on the selected candidate using soft information associated with the selected candidate which soft information is generated by the LLR unit.

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First Claim