| 摘要 |
<p>The present invention relates to a node (1) in a wireless communication network (2), the node (1) comprising a receiver (3) arranged for receiving at least two signals streams comprising bit sequences, and for evaluating which bit sequence that is most likely to have been received for a certain sent symbol for each signal stream. The receiver is also arranged for calculating metrics (34, 35, 36, 37, 38, 39, 40, 41; 42, 43, 44, 45, 46, 47, 48, 49) indicative of which bit sequence that initially is most likely to correspond to a certain sent symbol, the metrics (34, 35, 36, 37, 38, 39, 40, 41; 42, 43, 44, 45, 46, 47, 48, 49) further being used a soft value calculation where the receiver (3) is arranged for addition of metric data for a certain signal stream corresponding to an added bit sequence (f) for each case where the available metrics (42, 43, 44, 45, 46, 47, 48, 49) are incomplete for performing the estimation The missing bit is inserted in the added bit sequence in the place where it is missing, and is chosen such that it also corresponds to a symbol (51b) with the shortest Euclidian distance to the symbol (14b) with the said corresponding bit sequence (14; i, f, c) that initially is indicated to be most likely to correspond to a certain sent symbol.</p> |
