Patent ID: 7860042

Claim:
A method for controlling by a mobile station transmission power of a reverse channel in a mobile communication system, the method comprising the steps of: determining a data rate of a reverse traffic channel for each frame; comparing a first data rate of a current frame with a second data rate of a previous frame; if the first data rate is greater than the second data rate, transmitting to a base station a signal on a primary pilot channel having transmission power corresponding to a pilot reference level of the second data rate and a signal on a secondary pilot channel for reverse channel compensation; if the first data rate is less than or equal to the second data rate, transmitting a signal on the primary pilot channel among signals on the pilot channels; and if the first data rate is less than or equal to the second data rate, determining a transmission power of each of the reverse traffic channel and a reverse rate indicator (RRI) channel so that the determined transmission power has a predetermined ratio with transmission power of the primary pilot channel, and transmitting a signal on the reverse traffic channel and a signal on the RRI channel at the determined transmission power.