This new area of umts network design is studied in the paper. The basic core network architecture for umts is based on gsm. Its key function is to direct telephone calls over the publicswitched telephone network. The umts world is an 3g mobile system news and information provider. Business documents for the 3g umts mobile core network equipment and components. It simulates hnb, hnbgw, msc, sgsn, ggsn, smsc, hsshlr iucs, iups. Umts core network elements such as rnc, msc, and gprs core elements. The core network contains circuitswitched elements such as the msc, vlr, and gateway msc gmsc. The ims core network predominantly consists of the call session control function cscf and the home subscriber server hss.
Umts evolved packet core epc network by the early architectural work for the system evolved 3gpp, two views on the implementation of mobility with the user plane and control plane protocols were pr. The evolved umts terrestrial radio access network eutran. Umts uses wideband code division multiple access wcdma radio access technology to offer greater spectral efficiency and bandwidth to mobile network operators. Figure 12 gprsumts network components with ggsns implemented on the cisco mwam in the catalyst 6500 cisco 7600 platform note that, as figure 11 and figure 12 show, the ran is made up of different components for 2. Planning the umts ran and core network side is basically selecting the desired network layout, future expansion approach, calculating the required hardware, deciding software features and dimensioning all interfaces. The eps evolved packet system network is unusual with regards to the 2g gsm global system for mobilegprs general packet radio service and 3g umts, universal mobile telecommunications system networks, it only offers a data transmission service in ps packet service mode, whose main characteristic is that it increases the peak rate. Global system for mobile communications gsm architecture.
Circuit switched cs and packet switched ps which reuse the infrastructure of gsm and gprs respectively. The evolved packet core epc is the lte core network. This chapter will give an overview of the umts core network as specified by release 99, i. Overview of 3g mobile networks and the mobilenext broadband. Its basis stands in the gsmedge and umtshspa network technologies, with changes in terms of an increased capacity and higher speed by simplifying the core network and using a different radio interface. A core network usually ip tying the ran to the 3g service network. Geran gsm and edge radio access network ps core as in rel. Umts networks andreas mitschelethiel, jens muckenheim oct12 1 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. 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 marconi bxr48000 core switch router is the ideal foundation for the umts core network. It is the equivalent of the gsm network switching subsystem or nss. The core network consists of all the switches, routers, and other network components required to transport mobile traffic.
The evolved packet core communicates with packet data networks in the outside world. This course contains an overview of the evolved core networks in different releases of umts from release 4 to release 7. It also contains the packetswitched elements sgsn and ggsn. Atm core network independent of access network the specificity of the access network due to mobile system should be transparent to the core network, which may potentially. The long term evolution standard lte is a wireless communications, highspeed data standard for mobile phones and data terminals. The general lte network architecture is similar to that of gsm and umts. The universal mobile telecommunications system umts is a third generation mobile cellular system for networks based on the gsm standard. Atm core network independent of access network the specificity of the access network due to mobile system should be transparent to the core network. The umts core network is based on the gsmgprs network topology.
The lab system can operate with real mobiles, or simulator user profiles. The evolved umts terrestrial radio access network e utran. Components of base station system bss and core network cn, interfaces between functional entities. Sap tutorials programming scripts selected reading software quality. Softwaredefined mobile networks radio access network core network. It provides the switching, routing, transport, and database functions for user traffic. We helped our customers to launch mvnos, plan their network, select foss and nonfoss components. User equipment the user equipment or ue is a major element of the overall 3g umts network architecture. The lte network relies on the evolved packet core epc and its components see figure 11. Its basis stands in the gsmedge and umtshspa network technologies, with. Lte architecture including role of the enodeb in the network and key concepts. A core network is a telecommunication network s core part, which offers numerous services to the customers who are interconnected by the access network. It is assigned to a single user and contains all the functions needed to access umts services.
Ppt umts core network overview core network architecture. Our primary focus for the proposed architecture was to replace the ran part of the umts network with a wimax network and to place an ims core on top of both technologies to manage sessions. Upgrade from gsm to lte or extend lte core networks with. It is comprised of components that have the following functions. Umts core network overview core network architecture and migration ericsson servergateway split migration path ericsson servergateway split migration path axe10. This page on umts tutorial covers umts network architecture.
Sep 22, 2016 umts core network and its evolution 1. This is essentially the same as that within gsm, and it manages the circuit switched calls under way. Umts network architecture ran corenetwork ue umts tutorial. The paper overviews the umts core networkstructure, a possible abstractionofthe realnetwork. It reminds us a little on how it all began with 2g gsm and moves through 3g umts to 4g lte and beyond. From a gsmgprs network, the following network elements can be reused. In general, this term signifies the highly functional communication facilities that. Radio access network has several interfaces, which need to be configured and dimensioned. Umts uses a totally different air interface, but the core network elements have been migrating towards the umts requirements with the introduction of gprs and edge. Provides interconnection between the umts core network and external pstnisdn networks source.
Operator may obtain different network components form different suppliers. Umts system architecture and protocol architecture overview on overall system architecture umts network architecture and elements mobile station. It implements the minimal set of functions to handle homenodebs through iuh interfaces, enodebs through s1 interfaces, and ues through nas and gtpu interfaces. Scalable softwarebased architecture can run on a range of. Marconi switches and switch routers enable a unified, converged network architecture that significantly reduces complexity, capex, and opex. The umts radio access network, utran, or radio network subsystem, rns comprises two main components. A core network is a telecommunication networks core part, which offers numerous services to the customers who are interconnected by the access network. Endtoend 3g umts communications network lab cnl with all components such as nodeb, home nodeb, home nodeb gateway, umts core network elements such as rnc, msc, and gprs core elements such as sgsn, hlr, and ggsn to support mobile call and traffic emulation. Comprehensive coverage of umts 3g news, licensing, business developments, 3g wcdma telecommunication technology, multi media mobile phones and future communications. The user equipment or ue is a major element of the overall 3g umts network architecture. Aug 27, 2017 3g network fundamentals, core components august 27, 2017 august 31, 2017 m. In this paper an interworking model that integrates a wimax network, a umts network and a wlan is proposed in an ims compatible architecture. Lte network architecture the highlevel network architecture of lte is comprised of.
Mar 11, 2018 the umts core network is based on the gsmgprs network topology. Circuit switched elements the circuit switched elements of the umts core network architecture include the following network entities. The gprsumts packet core comprises two major network elements. Call control and mobility management, identification of mobile subscriber and equipment, security. Finally, the core network performs highlevel security functions such as location updating and authentication, and controls charging and accounting aspects.
Umts core network training course with handson exercises. Opportunity for umts core network simplification a umts core using a single common platform would be significantly less complex and realize reduced capex and opex. The universal mobile telecommunications system umts is commonly referred to as a thirdgeneration system. Planning the umts core network consist of gsn gprs service node system design, msc and registers. We take a journey through the different network topologies, network elements, protocols, signals, standards, interfaces and functionalities that make up a mobile. The following extract from 1 provides a very good understanding of the overall lte network infrastructure and elements. Developed and maintained by the 3gpp 3rd generation partnership project, umts is a component of the international telecommunications union imt2000 standard set and compares with the cdma2000 standard set for networks based on the competing cdmaone technology. The important point is that all handovers between cell towers are centrally controlled in the 3g network hierarchy. It consists of a software platform capable of providing key evolved packet core network component functions including the mobile management entity mme, the serving gateway sgw, and the packet data network gateway pdngw. Some software installs itself from the modem, so that in some cases.
Camel customised applications for mobile network enhanced logic is a set of in intelligent network type functions and procedures that make operatorspecific in services available to subscribers who roam outside their home network. In principle, the network is separated into a radio network part and a core network part. This element of the utran radio network subsystem controls the node bs that are connected to it, i. Its basis stands in the gsmedge and umts hspa network technologies, with changes in terms of an increased capacity and higher speed by simplifying the core network and using a different radio interface. Instantmarkets provide easy interface to find business opportunities accross globe including bids, awards, solicitations, rfps, rfis, rfqs and other opportunities from all government agencies and private companies. The sonata epc is a flexible core network solution for deployment of 4g lte mobile networks. Umts and gsmedge can share a core network cn, making utran an. Core network is composed of circuit switched and packet switched functional modules. This keeps information about the users phone number, home network identity and security keys etc.
An imsbased network architecture for wimaxumts and wimax. It includes various interfaces such as uu,lub,lur,lucs and lups between ue,nodeb,rnc,msc and sgsn. This solution combines gsmumtscdmaltewifi access and provides carriers with diversified valueadded solutions, including graphical network representation, lte voice, traffic monetization, capability exposure, and nfv evolution. The gprsumts standards define a network identity called an access point name apn. The core network is then the overall entity that interfaces to external networks including the public phone network and other cellular telecommunications networks. Yateucn unified ltegsm core network can be used to upgrade from umts or gsm to lte or extend lte networks. An overview of umts and its vision for the next generation allip multimedia networks known as ip multimedia subsystems ims. The core network has several interfaces, which need to be configured and dimensioned. The epc is a complex architecture where different functions are performed by separate components the mme, the sgw, the. Umts evolved packet core epc network tutorialspoint. Software for the k1297g20 protocol tester supports functional tests in umts r99, r4, r5, and r6 system development, and system tests for system integration. Upgrade from gsm to lte or extend lte core networks with yateucn. The core network provides all the central processing and management for the system. The umts architecture takes advantage of the existing gsm and gprs networks which serve as a core network in umts infrastructure.
Softwaredefined 5g system cloud ran cran commoditization and virtualization of wireless networks are changing the economics of mobile networks to help network providers e. Lte network infrastructure and elements lteencyclopedia. The highlevel network architecture of lte is comprised of following three main components. Gateway gprs support node ggsna gateway that provides mobile cell phone users access to a public data network pdn or specified private ip networks. Monitoring, simulation, and emulation functions are provided for relevant umts signaling protocols and user plane protocols. An apn identifies the service or network to which a subscriber can connect from a ggsn in a gprsumts network. This solution combines gsm umts cdmaltewifi access and provides carriers with diversified valueadded solutions, including graphical network representation, lte voice, traffic monetization, capability exposure, and nfv evolution. The ggsn function is implemented via cisco ios software on the cisco 7200 series router or on the cisco multiprocessor wan application module mwam installed in a catalyst 6500 series switch or cisco 7600 series internet router. The call session control function plays an important role in ims. This course describes the radio and core subnetworks of a mobile network. Yateucn implements all the components of the evolved packet core in software. Outline of the lecture evolutions form gsm to umts.
Radio access networkran,core networkcn and user equipmentue. A free powerpoint ppt presentation displayed as a flash slide show on id. To configure apns, the cisco ios ggsn software uses the following configuration elements. Planning the umts core network consist of gsn gprs service node system design, msc and registers dimensioning, omc dimensioning, core network interface dimensioning.
But since r99 recommends atm transport, and r5 permits the use of ipmpls in the network core, mobile operators are faced with a choice. The universal mobile telecommunications system umts is a third generation mobile cellular. Utran circuit switched cs core network umts terrestrial radio access network pstn msc server gmsc server sgw sgw 3gpp rel. The 3g umts private mobile network solution replicates a 3g cellular network in software and, along with one or more access points, allow the user to rapidly deploy a small scale network for a multitude of uses in a number of location. Umts employs an atmbased switching network architecture and aims to provide services for both mobile and fixed subscribers by common callprocessing procedures. The cscf node facilitates sip session setup and teardown. A usim stores userspecific data very similar to 3g sim card. The number of logical network nodes, however, has been reduced to streamline the overall architecture and reduce cost and latency in the network. Software defined 5g system cloud ran cran commoditization and virtualization of wireless networks are changing the economics of mobile networks to help network providers e. Besides development services we are offering a range of tools, products, professional training. 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. We can also reduce bss energy consumption by including additional software and system features to balance between. A new algorithm is proposed fortheabovetasks,whichbasedone cientmetaheuristics, but applies some problem related features to obtain as good solution as possible.
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