Patent ID: 7292644
Filing Date: 2007-11-06
Classification: H04B,H04L

Abstract:
1. A method for generating a space-time trellis code (STTC) for maximizing space-time diversity gain and coding gain in a mobile communication system including at least two transmission antennas, the STTC having an information data bit stream comprised of a number of bits, the method comprising the steps of: calculating a minimum effective length for each information data bit stream; calculating product distances between information data bit streams having a length equal to the minimum effective length, wherein for each pair of all initial states and all end states for each of the information data bit streams, initial states are identical to end states; summing reciprocals of the calculated product distances and calculating minimum average product distances by determining a reciprocal of the summation result; and generating a STTC code corresponding to an information data bit stream having a maximum value among the calculated minimum average product distances.