LOCATION INFORMATION SERVER, MOBILE EQUIPMENT AND PERIODIC CELL SEARCHING METHOD IN COMMUNICATION SYSTEM

摘要

PURPOSE: A location information server of a communication system, portable terminal, and periodic cell searching method are provided to search neighbor cells in optimized periods by simplifying a neighbor cell searching list. CONSTITUTION: A server communication unit(110) receives a request message including terminal state information from a portable terminal. The server communication unit transmits a response message including neighbor cell search optimization information. A level division unit(120) divides neighbor cells of a current cell connected with the portable terminal into plural levels. A searching period control parameter establishment unit(130) establishes a searching period control parameter for controlling adjacent cell searching periods according to the divided level.