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Role of RNC (Radio Network Controller) in the 3G cellular data network architecture:

• RNC (Radio Network Controller) controls several cell base stations (Node Bs).

• RNC mainly connects two core networks (voice network and data network).

• RNC connects to the cellular voice network via an MSC and to the packet switched Internet via an SGSN.

• Therefore, the mobile nodes in 3G cellular network can avail voice services and data services.

Role of RNC (Radio Network Controller) in the cellular voice network:

• The role of RNC is to allocate base stations radio channels to mobile subscribers, perform paging, and handoff of mobile users.

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