Umts standard is generally preferred by countries that use gsm network. A node b and an rnc can be the same device, although typical implementations have a. A umts network may work on wcdma, cdma2000 and tdscdma implementations. Rnc uu ue sgsn ggsn gb m e x e w a p u s a t iu iu internet other data nw 3g network r99 1 3g network r99 2 new radio interface. Take this free onlinetest or quiz or trivia on the 3g umts mobile network architecture and interfaces.
The mobile phone and subscriber identity module, the umts radio access network and, supporting voice with. Maturity proven by large scale commercial deployment more than 100 mobile softswtich networks deployed worldwide in more than 60 countries more than 100 million mobile subscribers served in terms of 2g and 3g vmsc. Most of 3g licenses in europe required operator to deploy a umts. Eng abstract radio resource management rrm is an essential topic when 3g wcdma networks are being developed.
The radio network controller rnc is a governing element in the umts radio access network and is responsible for controlling the node bs that are connected to it. More control into the rnc 3g rnc 3g msc 3g sgsn ggsn ip atmaal2 atmaal5 node b pstn. Umts network is called a third generation network 3g. Telcom 2720 6 utran architecture utran contains several rnss node b can support fdd or tdd. Nov 20, 2015 at the end of the course you will understand wcdma based 3g umts network components like ue, node b, rnc, cs, ps, msc, sgsn, ggsn, pdn and interfaces, you will have clarity on the 3g architecture. What is umts network architecture radio access radio interface frequency bands umts cdma modulation data channels umts tdd tdsdcdma handover. This means that the bsc rnc in utran will be a routerbased ip node. Gprs network in 3g is similar to that of the 2g gsm network. Umts works on wcdma, cdma2000 and tdscdma implementations by 3gpp. Given below is a simple pictorial view of the gsm architecture.
Outline of the lecture evolutions form gsm to umts. The rnc carries out radio resource management, some of the mobility management functions and is the point where encryption is done before user data is sent to and from the mobile. Lte architecture overview epc mobility services in lte. With the introduction of 3g umts there were many new. Packet based networks allow for an increased amount of traffic on a medium. Comprehensive coverage of umts 3g news, licensing, business developments, 3g wcdma telecommunication technology, multi media mobile phones and future communications. In view of the far greater number of applications and facilities that it can perform, the decision was made to call it a user equipment rather than a mobile. Le reseau d acces 4g est appele lte long term evolution of 3g ou eutran evolved utran. Radio network controller rnc radio mobility management management of radio resources base station node b radio coverage of cells. In this way, the umts network is able to route calls to the relevant rnc node b. Umts network architecture ran corenetwork ue umts tutorial. When the 3g was introduced, cell phone users were finally able to talk and access data at the same time and with higher data rates. You can easily clear job interviews and college exams after taking this 3g quiz.
In this tutorial you can learn the following topics. Manages the radio resources of each of the node bs that. Basic 3g umts network architecture and its main constituent components. Umts system architecture and protocol architecture overview on overall system architecture umts network architecture and elements mobile station. Pdf evolution of the utran architecture researchgate. The additional components of the gsm architecture comprise of databases and messaging systems functions.
Pdf over the last years 3g standardization has been quite active, leading in new. In a continuously growing number of countries we can walk in the stores of mobile network operators or resellers and take umts pc cards or even thirdgeneration 3g phones home and use them instantly. Agenda theoretical background rnc versions rnc cabinet mechanical structure rnc configuration rnc architecture rnc plugin units piu rnc function units fus. Iub rnc 2g 3g ms ue user equipment, often also called user terminal new air radio interface based on wcdma access technology 3gpp 3gpp relrel. Consider how often in your phone calls you actually say nothing. These functions and interfaces are explained in this chapter. Every day the number of equipments and their feature sets gets broader. A node b and an rnc can be the same device, although typical implementations have a separate rnc located in a central office. Named as lte long term evolution, the 4g system architecture is made up of an epc evolved packet core and evolved universal terrestrial radio access network e. Radio network controller rnc general summary 3gpp wcdma umts network background and architecture radio network controller rnc technical functionality control plane and user plane key elements of user plane dynamic behavior of packet switched calls evolution of rnc drivers distributed or centralized scalability. The user equipment or ue is a major element of the overall 3g umts network architecture. Handoff decisions, congestion control, power control, encryption, admission control, protocol conversion, etc. Transport formats in umts radio network controllers software. It is assigned to a single user and contains all the functions needed to access umts services.
The rnc provides control functionalities for one or more node bs. Introduction umts is developed by 3gpp 3 generation partnership project a joint venture of several organization 3g umts is a thirdgeneration 3g. Aug 11, 2009 utran interfaces are the most important point to start learning about the whole system. Cellular networks, 3g, umts, security architecture, aka, kasumi. The umts world is an 3g mobile system news and information provider. Comparision of 3g wireless networks and 4g wireless networks. It also provides the appropriate signaling and data interfaces including connection to an ipbased network toward the 3g ggsn, ss7 toward the hlreirauc and tcpip or ss7 toward the utran. Rnc radio network controller equivalent to gsm bsc responsible for radio resource management and control of the node bs. Figure 2 shows the protocol architecture for the lower layers of the mobile station. Tinnirello iub bs rnc new ran architecture iurinterface is available for soft handover, bsc rnc. From 3g to lte examines network architecture evolution in response to rapidly growing 3g data traffic and the planned introduction of long term evolution lte and system architecture evolution sae technology now also known as enhanced umts terrestrial radio access network eutran and evolved packet core epc, respectively in the 2010 to.
The 3g sgsn provides the necessary control functionality both toward the ue and the 3g ggsn. Rnc radio network controller equivalent to gsm bsc. The network architecture can be divided into subsystems based on the nature of traffic, protocol structures, physical elements. A mobile switching center msc is the centerpiece of a network switching subsystem nss. Umts radio access network, utra or utran was the name for the radio access network elements of the 3g umts mobile phone system. The msc is mostly associated with communications switching functions, such as call setup, release, and routing. A 3g mobile network offers good download and upload speeds. Universal mobile telecommunication system umts presented by m mateen shahid 2. Study these interview mcq questions and answers on 3g umts wcdma network architecture and interfaces. The radio network controller rnc is a governing element in the umts radio access network utran and is responsible for controlling the node bs that are. Umts overview and learn some important concept about umts architecture. Umts interfaces protocols on different interfaces standard numbers and links to the different standards.
As shown in the figure there are three main components in umts network architecture, user equipments is composed of mobile equipment me and usim. The 3g sgsn is the main cn element for ps services. Every rnc is connected to sgsn through the iups interface, and to an msc. Find out inside pcmags comprehensive tech and computerrelated encyclopedia. Iu is the interconnection point between an rnc and the 3g core network. Security architecture in umts third generation cellular networks. This tutorial on umts covers network architecture in umts system.
Rns rnc rns rnc core network node b node b node b node b iu iu iur iub iub iub iub utran figure 1. In case of dispute, the reference shall be the printing on etsi printers of the pdf version kept on a. Jan 23, 2019 the rnc provides control functionalities for one or more node bs. Aug 07, 2009 this tutorial contains some of the basics of 3g technology and network. Pdf in this paper, we discuss possible evolution scenarios for the umts terrestrial radio access network. Umts system architecture and protocol architecture overview on overall system architecture umts network architecture and elements mobile station highlevel functions umts domains and strata umtsgprs protocol architecture references. The only time part of that medium is blocked is when a device is transmitting or receiving. The umts architecture takes advantage of the existing gsm and gprs networks which serve as a core network in umts infrastructure.
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