Alamouti-coded worldwide interoperability for microwave access signals decoding method, involves establishing metric for each symbol hypothesis, where metric specifies probability of applying symbol hypothesis

摘要

The method involves multiplying symbols of signals with unknown coefficients. The signals are coded with an Alamouti-time-block code. The signals are transmitted by separate transmitting antennas (22, 23). Symbol hypotheses are determined for received symbols, where each symbol hypothesis corresponds to hypothetical transmission symbols. A metric is established for the each symbol hypothesis, where the metric specifies probability of applying the symbol hypothesis. The metric is formed by determining a distance of the hypothetical transmission symbols to next allowable receiver symbols. An independent claim is also included for a device for decoding signals.