Abstract:
PURPOSE: A device and a method for transmitting packets in variable processing gain packet CDMA(Code Division Multiple Access) system, using a smart antenna, are provided to add simple hardware so as to increase transmission power of transmission data and reduce a transmission time. CONSTITUTION: A scheduling and buffering unit(301) receives user information form mobile terminals for a predetermined input time in a packet type, to classify the user information and periodically output the classified user information. A power and beam generation controlling unit(302) controls the generation of high power beam for each mobile terminal, using the outputted user information. And an emission unit(303) generates beam according to a control signal of the power and beam generation controlling unit(302), for outputting.