The present invention relates to decoding space time coded (STC) signals
transmitted from a number of transmit antennas. First, a separate
detection technique is used to determine initial decoding solutions
corresponding to the symbols transmitted from each of a number of
transmit antennas at a given time. For each initial solution, a limited
area about the initial solution is defined. Each of the limited areas
will correspond to regions including constellation points proximate the
initial solution. The initial solutions are used to define a limited,
multi-dimensional space. Accordingly, the initial solutions are used to
reduce the search complexity associated with joint decoding by defining a
limited space about the initial solutions. Finally, a joint decoding
technique is implemented within the limited space to find a final
solution.