Umts architecture a umts network consist of three interacting domains. Geran gsm and edge radio access network ps core as in rel. Figure 2 shows the protocol architecture for the lower layers of. Umts core network signalling protocols course description the technology convergence under the name ngn, next generation network is currently deployed in both fixed and mobile. Service capability protocols, core network or terminal aspects of applications such as messaging or content sharing.
Equipment, umts terrestrial radio access network and core network modes of access overall characteristics fdd, tdd, odma elements of the ue elements of the utran elements of the core. A usim stores userspecific data very similar to 3g sim card. Umts system architecture and protocol architecture overview on overall system architecture. Utran circuit switched cs core network umts terrestrial radio access network pstn msc server gmsc server sgw sgw 3gpp rel. In this paper we illustrate a new protocol stack, namely the fcns future core networks system, primarily designed for carrying signalling information in the umts core network packet switched. Cn core network is responsible for transport functions such as switching and routing calls and data, tracking users usim me node b node b node b node b rnc rnc mscvlr sgsn hlr ggsn gmsc pstn internet ue. Umts hspa evolved packet core ip channel packet switched core pstn other mobile. Through out the present document this protocol shall be referred to as the nb up protocol.
Radio access network ran, core network cn and user equipmentue. Provides interconnection between the umts core network and external pstnisdn networks source. The 3g packet core architecture consists of the universal mobile telecommunications system umts. Future core networks system fcns a secure signalling protocol stack for the umts core network conference paper pdf available june 2002 with 8 reads how we measure reads. User plane protocols figure 2 shows the protocol stacks for. The core network of umts is inherited from gsm gprs network. Accompanied by numerous illustrations, the practical approach of. The umts world is an 3g mobile system news and information provider. Apr 30, 2012 includes comprehensive descriptions and documentation of umts reference scenarios for different umts procedures the unified comprehensive approach taken by the authors makes this book essential reading for engineers in network operators, integrators or system suppliers who need to be at the cutting edge of this technology. Sep 22, 2016 5 umts protocol stack first three layers of the protocol stack are part of utran note.
The main function of the core network is to provide switching, routing and transit for user traffic. Gsm problems to be addressed problems with active attacks using false base stations encryption keys and authentication data are transmitted in clear between and within networks encryption does not. In case of dispute, the reference shall be the printing on etsi printers of the pdf version. Developed and maintained by the 3gpp 3rd generation. This work constitutes the first security analysis of lte aka to date and the first computationally sound analysis of umts aka. Conceptual network model protocol structure and responsibilities divided as. Sms exists on both circuit switched and packet switched side 6. 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. Umts networks oliver waldhorst, jens muckenheim oct11 6. As a result, sae calls for a transition to a flat, allip core network, called the evolved packet core epc, that features. The access network, called umts terrestial radio network utran, consists of base stations and base stations controllers. Contains heavily revised sections on the evolution from gsm to umts multiaccess, the umts radio access network, the umts core network and services. It is an allip network that consists of ip routers edge and core ip routers.
Ip multimedia signalling protocols and adaptation of ims to different access technologies. This enables network operators to enjoy the improved costefficiency of umts. Umts is an umbrella term for the third generation radio technologies developed within 3gpp. Core network cn, umts terrestrial radio access network utran and user equipment ue.
The present document specifies the user plane protocol used between two media gateways in the cs core network. An overview of the 3g network lunds tekniska hogskola. The evolved packet core communicates with packet data networks in the outside world such as the internet, private corporate networks or. Umts to gsm or umts to gprs umts supports a variety of user data rates and both packet and circuit switched services system composed of three main subsystems telcom 2720 4. The highlevel network architecture of lte is comprised of following three main components. Rns rnc rns rnc core network node b node b node b node b. Lte eutran and its access side protocols radisys white paper 3 radio protocol architecture access stratum logically, lte network protocols can be divided into control plane responsible for managing. It includes various interfaces such as uu,lub,lur,lucs and lups between ue,nodeb,rnc,msc and sgsn. The philosophy of umts is to separate the user plane from the control plane, the radio network from the transport network, the access network from the cn, and the access stratum from the nonaccess stratum. Mobile communications networks mobile communications networks. The greatest changes are related to the access part of the network. Radio access networkran,core networkcn and user equipmentue. Nov 05, 2018 the core network of umts is inherited from gsm gprs network. Equipment, umts terrestrial radio access network and core network modes of access overall characteristics fdd, tdd, odma elements of the ue elements of the utran elements of the core network interfacing with other systems core network architecture and protocols requirements for release 99 an overview the circuit switched and packet.
Lte eutran and its access side protocols radisys white paper 3 radio protocol architecture access stratum logically, lte network protocols can be divided into control plane responsible for managing the transport bearer and user plane responsible for transporting user traffic. Includes updated versions on services in the umts environment, security in the umts environment and umts protocols. Pdf protocol stack design for 3rd generation mobile. Nas or the non access stratum is a set of protocols in the umts that is used to convey nonradio signalling between the user equipment ue and the core network. Prerequisites the participants should be familiar with umts network architectures and ss7 signalling. Protocol stack design for 3rd generation mobile systemsumts.
Umts network architecture ran corenetwork ue umts tutorial. Umts universal mobile telecommunications system being an access network in the mobile communication area provides a common interface to both gsm and gprs core network. Umts system architecture and protocol architecture overview on overall system architecture umts network architecture and elements mobile station. Core network is one of the main and important architectural component of mobile network systems. Generic user profile, wireless lan umts interworking and descriptions of ip multimedia subsystem, sip call control, sdp protocols for the im subsystem, mapping of qos. For the umts core network there may be the need of using additional protocols in order to support the mip broadband backbone mechanisms during the exchange of information between different networks. Stratum is the way of grouping protocols related to one aspect of the services provided by one or several domains. The radio access specifications provide for frequency division duplex fdd and time division duplex tdd variants, and several chip rates are provided for in the tdd option, allowing utra technology to operate in a wide range of bands and coexist with other radio access technologies. Course length 3 days widermind communicates the knowledge you need to develop and implement new technologies for current and future network operations. The core network is then the overall entity that interfaces to external networks including the public phone network and other cellular telecommunications networks. Which refers to universal terrestrial radio access network. The philosophy of umts is to separate the user plane from the control plane, the radio. Nov 12, 2019 core network is one of the main and important architectural component of mobile network systems.
Umts network architecture and elements mobile station highlevel functions umts domains and strata umtsgprs protocol architecture references. This page on umts tutorial covers umts network architecture. Different 3gpp releases up gradation to umts architecture 3. Umts network architecture and elements mobile station highlevel functions umts domains and strata umts gprs protocol architecture references. Comprehensive coverage of umts 3g news, licensing, business developments, 3g wcdma telecommunication technology, multi media mobile phones and future communications. Comprehensive coverage of umts 3g news, licensing, business developments, 3g wcdma. Using the results we discuss the architectural implications of radio access network utran, core network, and the video server on the overall delay. The evolved umts terrestrial radio access network eutran. Our work is the first formal analysis to consider messages that are sent in the core network, where we take into account details of the carrying protocol i.
Network element instability, network element and multivendor interoperability, configuration and network planning faults are just a few of the challenges affecting performance and. Iu is the interconnection point between an rnc and the 3g core network. Users of the present document should be aware that the document may be subject to. Evolving through biologicallyinspired technologies 3 mobile communication networks mobile communications networks are getting more and more complex with variety of services they offer variety of devices connected to the network variety of environment and channel conditions they work in. The user equipment or ue is a major element of the overall 3g umts network architecture. Fixed service providers will apply ims to adsl and cable network accesses. Computational security analysis of the umts and lte. Protocol stack design for 3rd generation mobile systemsumts core network. Protocol handling activities between ue and core network, stratum is the way of grouping protocols related to one aspect of the services. Containing revised, updated and brand new material, it provides a comprehensive view on the umts network architecture and its latest developments.
Umts evolved packet core epc network tutorialspoint. Core network cn, umts introduces a set of new protocols, which deserve close understanding and attention. Mobile communications networks mobile communications. Umts gprs system overview from an ip addressing perspective. Mobile network technologies gsmgprsumtslte youtube. 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.
Outline of the lecture evolutions form gsm to umts. An umbrella term that encompasses the third generation 3g radio technologies developed by the 3gpp 3rd generation partnership project, a. Umts core network and its evolution linkedin slideshare. It has been developing since 3g because of packets are being send and received. This enables network operators to enjoy the improved costefficiency of umts while protecting their 2g investments and reducing the risks of implementation. Core network also contains the databases and network management functions. Utran umts terrestrial radio access network handles all radio related functionality wcdma is radio interface standard here. Building on the success of the first edition, umts networks second edition allows readers to continue their journey through umts up to the latest 3gpp standardization phase, release 5. The universal mobile telecommunications system umts is a third generation mobile cellular system for networks based on the gsm standard. The universal mobile telecommunications system umts is one ofthe thirdgeneration mobile technologies.
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