FIELD: radio engineering, code-division multiple access communication systems. SUBSTANCE: communication system includes base station and terminal. Base station has generator of direct channel pilot signal to generate pilot signal, generator of direct selected control channel to generate control message, generator of direct key channel to generate speech signal and generator of direct additional channel to generate data package. Terminal includes generator of backward selected control channel to generate control message, generator of backward channel of pilot signal to generate pilot signal by way of summation of signal controlling power with pilot signal, generator of backward key channel to generate speech signal and generator of additional channel to generate data package. EFFECT: length of message frame for control information varies depending on amount of control information. 18 cl, 42 dwg
