Patent ID: 7409000

Claim:
A space-time trellis code (STTC) encoding apparatus having an outer encoder for performing channel coding and an inner encoder for performing a space-time coding, in a mobile communication system including one or more transmission antennas, the apparatus comprising: a first binary adder for adding a first input signal output from the outer encoder to a symbol output from the first input signal, for transmission via a first transmission antenna; a first delay for delaying a signal output from the first binary adder and outputting the delayed signal to the first transmission antenna; a second binary adder for adding a second input signal output from the outer encoder to a symbol output from the second input signal, for transmission via the first transmission antenna; and a second delay for delaying a signal output from the second binary adder and outputting the delayed signal to the first transmission antenna, wherein the first and second input signals are transmitted via a second transmission antenna.