Patent ID: 8060143

Claim:
A modular and stackable Internet Protocol (IP) Radio Access Network (RAN) comprising: a combined base transceiver station (BTS) and base station controller (BSC) comprising: a centralized Main Control Processor (MCP) coupled to a plurality of selector distribution unit (SDU) channel element control (CEC) Processors (SCPs); each of the plurality of SCPs comprising an SDU coupled to a CEC; a radio call control (RCC) coupled to the CEC, wherein the MCP comprises the RCC; and a main call control (MCC) coupled to the SDU and to the RCC, the MCC is configured to receive a mobile station (MS) origination message from the RCC, the MS operating in the RAN, the MCC is further configured to request call service from a calling agent (CA), confirm the validity of the MS and resource information of a media gateway, communicate with the RCC to request a radio resource, communicate with the SDU to allocate a selector resource, and perform at least one of subscriber registration, call setup, call release and call handoff.