Apparatus and method for velocity estimation in mobile communication system

The present invention relates to a velocity estimation apparatus and method in a mobile communication system, the velocity estimation method in a mobile communication system, a plurality of each process, and a plurality of the one another by a different sample interval for delaying the received signal by applying different sample interval and delayed comprising the step of selecting the maximum Doppler frequency that is in the process of estimating candidate maximum Doppler frequency for each of the received signal, a reliable region can be from the plurality of candidates up to the Doppler frequency, to estimate the terminal velocity of the low speed without error can. Doppler frequency, velocity estimation, autocorrelation, covariance.