A base station for compensating a fixed route delay between a base station and
a mobile station of a CDMA mobile communication system and an operation method
thereof are disclosed. This base station includes a clock signal generation unit
for receiving a 10 MHz, TOD and 1 PPS signal from a GPS receiving unit and generating
a 1st even second clock signal in synchronization with the 1 PPS and a 2nd even
second clock signal which is obtained by delaying the 1st even second clock signal
by a maximum bidirectional propagation delay time between a base station and a
relay unit, a first signal processing unit for receiving the 1st even second clock
signal from the clock signal generation unit and modulating a forward link channel
from the base station to a mobile station in synchronization with the 1st even
second clock signal, and a second signal processing unit for receiving the 2nd
even second clock signal from the clock signal generation unit and demodulating
a backward link channel from the mobile station to the base station in synchronization
with the 2nd even second clock signal, for thereby compensating a decrease of a
cell communication radius due to a fixed route delay factor on a communication
route between a base station and a mobile station.
