MESSAGE DEFINITION METHOD FOR MOBILE CALL PROCESS IN ATM-BASED IMT-2000 SWITCH

PURPOSE: A message definition method for a mobile call process in an ATM-based IMT-2000 switch is provided to simply process a mobile call between an ATM switch and a base station controller for thereby providing various multimedia services of an ATM switch to an IMT-2000 subscriber. CONSTITUTION: An ASSIGNMENT REQUEST message is a message for setting a communication channel by processing a call access set control between a base station controller and an ATM switch and includes an access identifier and an ATM traffic technique information element and is transferred to a base station controller by an ATM switch. An ASSIGNMENT COMPLETE message is a message for transferring a communication channel set completion by processing a call access set control between a base station controller and an ATM switch. An ALERTING message is a message for informing an incoming terminal call. A CALL PROCESSING is a message for informing that a call setting information is not needed. A CONNECT message is a message for informing that an incoming signal is approved. A CONNECT ACKNOWLEDGE message is a message for informing that a call of an incoming/outgoing person is obtained. A RELEASE message is a message for requesting a user's terminal-to-terminal connection release. A RELEASE COMPLETE message is a message for informing an access identifier release. A SETUP message is a message for setting a call.