Method for controlling hand off of mobile terminal in code division

Abstract

The present invention relates a method for controlling hand off of a mobile terminal in CDMA mobile communication system which controls hand off of a mobile terminal by dividing the mobile terminals into mobile terminals of high mobile speed and mobile terminals of low mobile speed in CDMA mobile communication system. The invention includes the steps of: a first step of transmitting coordinates of three adjacent base stations to the mobile terminal by calculating the coordinates of three adjacent base stations by transmitting a pseudo noise code offset information of base stations of three adjacent cells which have the greatest pseudo noise code offset values to a base station which is currently servicing by measuring the pseudo noise code; a second step of calculating the distance between the mobile terminal and each of the base stations received from the base station which is currently servicing; a third step of proceeding to a traffic condition after setting up a call; and a fourth step of repeating the first step to the third step if a predetermined trace period is reached, or requesting a hand off and proceeding to the traffic condition according to measured speed by measuring the speed of the mobile terminal if a hand over event occurs, or aborting a position trace of the mobile terminal if the call is completed.