Patent ID: 7433684

Claim:
An apparatus for verifying a space-time coding application to a base station in a mobile communication system, the apparatus comprising: a base station having two antennas for outputting an antenna signal from one predetermined antenna of the two antennas in a case where the space-time coding has not been applied to the base station, and outputting antenna signals from both antennas in a case where the space-time coding has been applied to the base station; a plurality of attenuators for attenuating the antenna signals output from the two antennas of the base station, respectively, and combining the attenuated signals from the two antennas with each other; a coupler for coupling the combined signals from the antennas output from the attenuators with each other and outputting the coupled signal; a terminal for receiving a signal coupled by the coupler and demodulating the received signal, wherein the antenna signal output from both antennas is demodulated when the space-time coding has been set in the terminal, and the antenna signal output from the predetermined one antenna of the antennas is demodulated when the space-time coding has not been set in the terminal; and a computer for performing an error check on the demodulated result and verifying the space-time coding of a signal for the base station according to the error check result.