Abstract: Disclosed is a method and system for controlling communication direction of a mobile station. The system includes: an overhead message receive unit for receiving an overhead message from a first base station; a first field value determination unit for determining whether a first field value is a first value or second value; a first field value change unit for comparing a current second field value with a previous second field value when the first field value is determined to be the first value, and changing the first field value to the second value if the current second field value does not match the previous second field value; and a processing execution unit for not performing operation of processing the overhead message if the current second field value matches the previous second field value and performing operation of processing the overhead message if the first field value indicates the second value.