A device and method for outer-loop power control in a discontinuous
transmission mode in a CDMA mobile communication system. In an outer-loop
power control method for a non-frame data transmission period of a
dedicated control channel (DCCH) which transmits frame data
discontinuously, the signal-to-noise ratio (SNR) of power control bits
(PCBs) received at a mobile station from a base station is measured for
the frame period, and it is determined whether the frame has errors based
on the measured SNR. A closed-loop power control threshold is increased if
a frame error exists and decreased if no frame errors exist.