An apparatus and a method detect a motion in a mobile station. A motion is determined via a motion detecting function in the mobile station. A parameter for motion detection is determined from sensor data obtained via a sensor. The extracted parameter for the motion detection is transmitted to a counterpart mobile station. A parameter for motion detection determined by the counterpart mobile station is received from the counterpart mobile station. The extracted parameter is compared with the parameter received from the counterpart mobile station to determine a function associated with a motion input by a user.