Mobile communication transmitting and receiving system device and method

PURPOSE: A mobile communication transmitting and receiving system device and a method are provided to control each transmitting power through a code channel to plural users. CONSTITUTION: The mobile communication transmitting and receiving system device and a method comprises: an electricity control bit generator(213) for generating an electricity control bit to a user; a user pattern generator for generating different patterns to each user; a multiplier(216) for multiplying the output of the user pattern generator; a diffusion modulator for diffusing and transmitting a the output of the multiplier