Radio Network Controller - RNC Roles

RNC Roles

In a relationship to a UE (in a soft handover situation) an RNC can play two different roles. These are:

  • D-RNC: Drift RNC
  • S-RNC: Serving RNC

However, as far as the NodeB is concerned, the RNC may play a third role:

  • C-RNC: Controlling RNC

It is important to know that one RNC can assume more than one role at any time.

A RNC also control the power of a NODE B.

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