METHOD FOR PREVENTING DOWN OF NETWORK MANAGEMENT SYSTEM IN RADIO CALL DATA SATELLITE TRANSMISSION SYSTEM

摘要

PURPOSE: A method for preventing a down of a network management system in a wireless call data satellite transmission system is provided to prevent the network management system from down by reducing a load of the network management system and to improve a performance of the network management system by improving a data base table structure. CONSTITUTION: Whether a data transmission path is switched to the site is checked. Then whether a critical alarm is generated in the network management unit when a data transmission path is switched to the site is checked. A center station is polled and the alarm signal received from the base station is blocked when the critical alarm is generated in the network management unit. It is checked whether the critical alarm is disappeared. The polling of the center station is released and the alarm signal transmitted from the base station is received. The alarm generated when the site is switched is a report message.