Patent ID: 7221670

Claim:
In a packet data communication system comprising a base station, a Packet Control Function, a Packet Data Serving Node, wherein the base station is coupled to the packet control function by an A8 bearer interface and an A9 signaling interface and the packet control function is coupled to the packet data serving node by an A10 bearer interface and an A11 signaling interface, comprising: requesting an A8 connection; requesting an A10 connection and packet data registration in response to the step of requesting an A8 connection; providing an A11-Registration Reply message on the A11 signaling interface to indicate if the registration request is accepted and the A10 connection is completed; and providing an A9-Release-A8 Complete message on the A9 signaling interface to indicate to the base station that registration of the A10 bearer interface was denied including at least one reason selected from a plurality of reasons for denying registration.