Which is a part of core network of 3G architecture?

The 3G network architecture The Core Network (CN) is the part of the UMTS network that provides services to final users; it can be connected to different types of networks supporting different communication protocols. The CN is composed by the Circuit Switched CN (CS CN) and a Packet Switched CN (PS CN) .

UMTS specifies a complete network system, which includes the radio access network (UMTS Terrestrial Radio Access Network, or UTRAN), the core network (Mobile Application Part, or MAP) and the authentication of users via SIM (subscriber identity module) cards.

The UMTS Network architecture has three main entities:

Some of the main features of 3G are: