What are the interfaces of UMTS?
UMTS Interfaces
- Uu: UE to Node B (UTRA, the UMTS W-CDMA air interface.
- Iu: RNC to GSM Phase 2+ CN interface (MSC/VLR or SGSN) Iu-CS for circuit-switched data. Iu-PS for packet-switched data.
- Iub: RNC to Node B interface.
- Iur: RNC to RNC interface, not comparable to any interface in GSM.
What is the need for Iu interface?
Iu interfaces carry user traffic (such as voice or data) as well as control information (see § Protocols), and Iur interface is mainly needed for soft handovers involving 2 RNCs though not required as the absence of Iur will cause these handovers to become hard handovers.
What is UMTS network type?
UMTS (Universal Mobile Telecommunications Service) is a third-generation (3G) broadband, packet-based transmission of text, digitized voice, video, and multimedia at data rates up to 2 megabits per second (Mbps). Users will have access through a combination of terrestrial wireless and satellite transmissions.
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 stand for?
Universal Mobile Telecommunications System
Universal Mobile Telecommunications System (UMTS)
What are the functions of RNC and Node B in UMTS?
The RNC undertakes the radio resource management and some of the mobility management functions, although not all. It is also the point at which the data encryption / decryption is performed to protect the user data from eavesdropping. Node B: Node B is the term used within UMTS to denote the base station transceiver.
What is UMTS explain UMTS in detail?
The Universal Mobile Telecommunications System (UMTS) is a third generation mobile cellular system for networks based on the GSM standard. UMTS uses wideband code-division multiple access (W-CDMA) radio access technology to offer greater spectral efficiency and bandwidth to mobile network operators.
What are the advantages of UMTS?
Advantages of UMTS Support 2Mbit/s information rates. Higher Information rates at lower incremental costs. This not as it were gives client a valuable phone but moreover deciphers higher incomes for the administrator.
When do Iu interfaces need to be used?
Iu interfaces carry user traffic (such as voice or data) as well as control information (see § Protocols ), and Iur interface is mainly needed for soft handovers involving 2 RNCs though not required as the absence of Iur will cause these handovers to become hard handovers .
What is the network architecture of UMTS system?
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.
Is the UU an internal or external interface?
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.
What are the four interfaces of the UTRAN?
There are four interfaces connecting the UTRAN internally or externally to other functional entities: Iu, Uu, Iub and Iur. The Iu interface is an external interface that connects the RNC to the Core Network (CN).