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Abstract

A method for controlling call processing in a microcellular Personal Communications Services (PCS) incorporating Distributed Radio Port Controller (D-RPC) architecture. The method is specifically adapted to effect the routing of voice channels when a call origination, call delivery, intra-RPC ALT or inter-RPC ALT is needed. The method is operable in conjunction with a PCS system which is connected to the Public Switched Telephone Network (PSTN) through an existing Central Office Switch (COS). The PCS system includes a plurality of Radio Port Controllers (RPCs) each having a corresponding plurality of Radio Ports (RPs) to define a plurality RPC serving areas for transmitting and receiving calls from mobile terminals registered therein. Radio Ports are monitored for any signals generated thereby which indicate that a mobile terminal is attempting to register on the PCS system, originate a call, initiate an ALT, or disconnect a call. A Visitor Location Register (VLR) is provided for managing call information regarding the mobile terminals registered in the RPC serving areas. The VLR is monitored for any inbound calls or signals generated by the VLR to obtain information as to how to proceed with a current activity. The VLR and Radio Port Signals are coordinated so as to determine and effect the routing of voice channels.

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