Disclosed is a method for obtaining a GPS signal by a user terminal operating
in a time division duplex method, the user terminal receiving the GPS signal and
a base station signal, the method includes setting a maximum window reception interval
for attempting a GPS signal acquisition; setting within a frame an interval for
attempting the GPS signal acquisition and attempting the GPS signal acquisition;
exponentially increasing the time period for attempting the GPS signal acquisition
and reattempting a GPS signal acquisition, when the GPS signal is not obtained
in the set interval for the GPS signal acquisition; and ending the GPS signal acquisition
attempts when the interval for the GPS signal acquisition is greater than or equal
to the maximum window reception interval.
