In UMTS, the UTRAN is composed of the NodeB and the RNC (Radio Network Controller) associated with it. It is controlled by MSC, and used to give radio coverage to a determined geographical zone called a cell.

In 3G, its called NodeB instead of BTS. 

UMTS fpr 2G, UTRAN for 3G.

Why it called NodeB whereas other site is called BTS?

What is the difference between RNC & BSC?

Can you pls provide me a network diagram to describe this in details?

what is the network connectivity link between RNC & MSC?

 

Difference between UMTS & UTRAN????

Thanks for sharing

need more