A UMTS network is made up of the following elements:
• Core Network.
The Core Network incorporates transport and intelligence functions. The first ones support
traffic and signaling information transport, including switching. The routing resides in
intelligence functions consisting of features such as logical and the control of certain services
offered through a series of well-defined interfaces; also including mobile management.
Through the Core Network, the UMTS connects to other telecommunication networks thus
allowing communication with both UMTS mobile users and for users connected to other
networks.
• Radio access network (UTRAN).
Radio access network provides the connection between mobile terminals and the Core
Network. In UMTS this is known as UTRAN (UMTS Terrestrial Radio Access Network –
UTRAN) and consists of a series of radio network systems or RNC (Radio Network
Controller) and a series of B Nodes dependent on this. B Nodes are network elements that
correspond to the base stations.
• Mobile Terminals.
UMTS specifications use the term User Equipment (UE).
TELDAT ROUTER– UMTS Introduction
I - 3
Doc.DM757-I
Rev.10.60
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