What is UMTS architecture?
What is UMTS architecture?
UMTS system uses the same core network as the GPRS and uses entirely new radio interface. The new radio network in UMTS is called UTRAN (UMTS Terrestrial Radio Access Network) and is connected to the core network (CN) of GPRS via Iu interface. The mobile terminal in UMTS is called User Equipment (UE). …
What are the layers of UMTS?
UMTS protocol stack consists of Access Stratum(AS) and Non Access Stratum(NAS). Access Stratum supports OSI-layer 1 to 3. It consists of PHY(layer 1), MAC(layer 2),RLC(layer 2) and RRC(layer 3). NAS or core network part is divided based on circuit switched(CS) or packet switched(PS) functionalities.
What are the three main entities of the UMTS network?
The UMTS Network architecture has three main entities:
- UMTS Core Network (CN)
- UMTS Terrestrial Radio Access Network (UTRAN)
- User Equipment (UE)
What are the domains and interfaces of UMTS?
A UMTS network consist of three interacting domains; Core Network (CN), UMTS Terrestrial Radio Access Network (UTRAN) and User Equipment (UE). The main function of the core network is to provide switching, routing and transit for user traffic. Core network also contains the databases and network management functions.
What is UMTS network architecture?
This tutorial on UMTS covers network architecture in UMTS system. As shown in the figure there are three main components in UMTS network architecture , User Equipments is composed of Mobile Equipment (ME) and USIM. Radio Access Network is composed of NodeB and RNC.
What are the circuit switched elements of UMTS?
The circuit switched elements of the UMTS core network architecture include the following network entities: Mobile switching centre (MSC): This is essentially the same as that within GSM, and it manages the circuit switched calls under way. Gateway MSC (GMSC): This is effectively the interface to the external networks.
What are the different types of UMTS interfaces?
The UMTS interfaces can be categorized as follows: a. Uu : This is the interface between the user equipment and the network. That is, it is the UMTS air interface. The equivalent interface in GSM/GPRS networks is the um interface. b.
What are the packet switched elements of the 3G UMTS core network architecture?
The packet switched elements of the 3G UMTS core network architecture include the following network entities: Serving GPRS Support Node (SGSN): As the name implies, this entity was first developed when GPRS was introduced, and its use has been carried over into the UMTS network architecture.
