Disclosed is a method for determining a forward data rate and a forward
transmission power level in a mobile communication system. An access
terminal measures a C/I of a forward pilot channel, determines a forward
data rate by matching the measured C/I with a reference C/I, creates a
difference between the measured C/I and the reference C/I as margin
information, and transmits the determined forward data rate and margin
information over a reverse transmission channel. Upon receipt of the
forward data rate and margin information, an access network decreases a
transmission power level by power corresponding to the margin information
and performs forward transmission at the forward data rate at the
decreased transmission power level.
