UMTS Terrestrial Radio Access Network (UTRAN) is a collective term for the network and equipment that connects mobile handsets to the public telephone network or the Internet. It contains the base stations, which are called Node B's and Radio Network Controllers (RNCs)[1] which make up the Universal Mobile Telecommunications System (UMTS) radio access network.[2] This communications network, commonly referred to as 3G (for 3rd Generation Wireless Mobile Communication Technology), can carry many traffic types from real-time Circuit Switched to IP based Packet Switched. The UTRAN allows connectivity between the UE (user equipment) and the core network.
The RNC provides control functionalities for one or more Node Bs. A Node B and an RNC can be the same device, although typical implementations have a separate RNC that is located in a central office serving multiple Node Bs. Despite the fact that they do not have to be physically separated, there is a logical interface between them known as the Iub. The RNC and its corresponding Node Bs are called the Radio Network Subsystem (RNS). There can be more than one RNS present in a UTRAN.
There are four interfaces connecting the UTRAN internally or externally to other functional entities: Iu, Uu, Iub and Iur.[3] The Iu interface is an external interface that connects the RNC to the Core Network (CN). The Uu is also external, connecting Node B with the User Equipment (UE). The Iub is an internal interface connecting the RNC with Node B. And at last, there is the Iur interface, which is an internal interface most of the time but can exceptionally be an external interface too for some network architectures. The Iur connects two RNCs with each other.
mobile network operators. UMTS specifies a complete network system, which includes the radioaccessnetwork (UMTSTerrestrialRadioAccessNetwork, or UTRAN)...
GRAN, but is otherwise identical in concept. A GERAN without GSM is an ERAN. UTRAN : UMTSTerrestrialRadioAccessNetwork 3GPP GERAN Plenary page v t e...
between UTRAN (UMTSTerrestrialRadioAccessNetwork) and the UE (User Equipment). UE handles the following tasks towards the core network: Mobility management...
increase in network throughput. However, the optimum scheduling of concurrent transmission is an NP-hard problem. Cellular networks, such as GSM, UMTS or LTE...
popularity of a website UMTS air interface or "Uu interface", which links User Equipment to the UMTSTerrestrialRadioAccessNetwork Unix-to-Unix, as in...
bands UMTS frequency bands LTE frequency bands 5G NR frequency bands Deployed networks by technology List of UMTSnetworks List of CDMA2000 networks List...
The Radio Resource Control (RRC) protocol is used in UMTS, LTE and 5G on the Air interface. It is a layer 3 (Network Layer) protocol used between UE and...
systems allow single-frequency network (SFN), where all terrestrial transmitters in a region sending the same multiplex of radio programs may use the same...
uniquely identify a mobile network operator (carrier) using the GSM (including GSM-R), UMTS, LTE, and 5G public land mobile networks. Some but not all CDMA...
Frequency bands for 5G New Radio (5G NR), which is the air interface or radioaccess technology of the 5G mobile networks, are separated into two different...
of LTE networks List of planned LTE networks 5G NR frequency bands UMTS frequency bands "TS 36.101: Evolved Universal TerrestrialRadioAccess (E-UTRA);...
Network connections can be established wirelessly using radio or other electromagnetic means of communication. Terrestrial microwave – Terrestrial microwave...
Standards are being developed by 3GPP to provide access to end devices via non-terrestrialnetworks (NTN), i.e. satellite or airborne telecommunication...
techniques are used as an access technology, namely code-division multiple access (CDMA), in Universal Mobile Telecommunications System (UMTS) standard for the...
mobile networks, The voice, data and Internet services, cable television, developments in next-generation networks and broadcast networks for radio and television...
approx 98% of the population. Operators: 2degrees (operating UMTS and LTE) Virtual network operators: Warehouse Mobile (owned by The Warehouse Group),...
turning off their 2G network, but it is still operating today When it came to the roll out of 3G South Africa offers UMTS 900 and UMTS 2100 with 99.7% of...
speed terrestrial link which based on DWDM and STM technology is 400 Gbit/s with the ability to upgrade in the future. Belarus has 3 GSM/UMTS operators...
public hotspots. Home Node B is 3G (UMTS) counterpart of the HeNB. Within an HeNB AccessNetwork there are three new network elements: the Home eNodeB, the...
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