The 5g core network architecture is at the heart of the new 5g specification and enables the increased throughput demand that 5g must support. Reference architectures 2017 deploying mobile networks. This paper talks about the shift of existing infrastructure for 3g core to 4g, and the benefits and impact on the communications industry of advancedtca on the wireless core network. It includes various interfaces such as uu,lub,lur,lucs and lups between ue,nodeb,rnc,msc and sgsn. Iu is the interconnection point between an rnc and the 3g core network. Core network cn and a generic radio access network gran 2, 8, 10, 11. This keeps information about the users phone number, home network identity and security keys etc. Papadoukakis2 1national technical university of athens, 2 4plus technologies s. Initial 3g umts network architecture includes both circuit and packet core. Network slicing is an important bridge from a 4g core to a new 5g core and is a key component of a 5gready network investment strategy. Mobile communication networks andreas mitschelethiel, florian evers 3 2g to 3g evolution. Comparision of 3g wireless networks and 4g wireless networks. The network architecture can be divided into subsystems based on the nature of traffic, protocol structures, physical elements.
Security hscsd gprs architecture protocols qos edge umts. Tinnirello gn iu ps ip backbone internet sgsn auc eir ggsn sgsn gmsc and ggsn remain the same aucis upgraded more security features in 3g. The architecture of evolved packet core epc has been illustrated below. We present an overview of the eutran radio interface characteristics and 4g network architecture elements.
Separation of access technology, transport technology, service technology. The new 5g core, as defined by 3gpp, utilizes cloudaligned, servicebased architecture sba that spans across all 5g functions and interactions including authentication, security, session management. Learn 2g3g mobile packet core in 2 hrs mobile packet core. Transmission in the core network ip in the mobile network the requirements mobile networks and ip evolution the general packet radio service the gprs core network architecture and network elements gprs support nodes the gprs context servers dhcpradius gprs access best effort services. Difference between 3g and 4g technology with comparison. The basic core network architecture for umts is based on gsm network with gprs. Cn core network is responsible for transport functions such as switching and. Evolved umts terrestrial radio access network eutran system architecture evolution sae is the 3gpp next generation standard for mobile networks providing. The epc is the latest evolution of the 3gpp core network architecture. Gprs inefficient ties up resources, even when nothing sent not as popular as gprs many.
Efficient, but variable delays gsm gprs core network reused by wcdma 3g gprs hscsd high speed circuit switched data dedicate up to 4 timeslots for data connection 50 kbps good for realtime applications c. Cellular networks, 3g, umts, security architecture, aka, kasumi. Mobile packet core network contains different technologies, 2g 3g, and 4glte. Sba provides a set of loosely coupled services enabling modularity and reuse, allowing csps to be more agile and enabling rapid service delivery. The core network is then the overall entity that interfaces to external networks including the public phone network and other cellular telecommunications networks. Security architecture in umts third generation cellular networks. Lte 4g network architecture lte core network mobile. As core network architecture is moving towards packet or allip architecture, it becomes critical that. The gprs network transfers data transparently between the user equipment ue, and the packet data network pdn. Gprs and 3g wireless systems seminar report submitted in partial ful llment of the degree of. The umts architecture takes advantage of the existing gsm and gprs networks which serve as a core network.
The servicedriven 5g network architecture aims to flexibly and efficiently meet diversified mobile service requirements. Increased bandwidth endtoend ip simplified architecture support for multiple radio access technologies evolved packet core epc is the next generation 3gpp packet core. Cn core network is responsible for transport functions such as switching and routing calls and data, tracking users usim me. The architecture of both the systems is discussed in detail. Radio access network ran, core network cn and user equipmentue. Reference architectures 2017 deploying mobile networks using network functions virtualization 6. The first trend was the shift towards an all ip umts. It is your first step in your career as mobile packet core engineer. Rns rnc rns rnc core network node b node b node b node b iu iu iur iub iub iub iub utran figure 1. Our 5g packet core solution allows operators to make transition from 4g to 5g in a graceful stepbystep manner.
There are few more components which have not been shown in the diagram to keep it simple. Comparision of 3g wireless networks and 4g wireless. A core network is a telecommunication networks core part, which offers numerous services to the customers who are interconnected by the access network. With softwaredefined networking sdn and network functions virtualization nfv supporting the underlying physical infrastructure, 5g comprehensively cloudifies access, transport, and core networks. This page on umts tutorial covers umts network architecture. Signaling measurements on the packet domain of 3g umts core network g. Comparison 1g 2g 3g 4g 5g period 1980 1990 1990 2000 2000 2010 2010 2020 2020 2030 bandwidth 150900mhz 900mhz 100mhz 100mhz x bw pr. The core network is becoming progressively accessagnostic, allowing home base stations. Cdma2000 and wcdma were the most commercially successful. With the advent of broadband access networks, the core network evolves towards ip multimedia subsystem ims which provides ipbased multimedia services. The highlevel network architecture of lte is comprised of following three main components. In general, this term signifies the highly functional communication facilities that. Virtual evolved packet core is when a mobile operator who may have a 3g core has decided to.
The rnc, node b and ms together are called the serving radio. The core network may be viewed as consisting of 3 layers the transport. The ngran consists of a set of radio base stations known as gnbs connected to the 5g core network 5gc and to each other. The user equipment or ue is a major element of the overall 3g umts network architecture. Gsm gprs umts gprs core packet switched sgsn ggsn internet gsm ran base station base station. Reference architectures 2017 deploying mobile networks using network functions virtualization 2. Signaling measurements on the packet domain of 3gumts. Msc is upgraded to 3g msc sgsn is upgraded to 3g 3gpp rel. The current fourth generation wireless mobile network 4g based on allip network architecture provides high data rates, low latency and lowcost implementation. Itu imt2000 compliant 3g standards included edge, tdscdma, and wimax. Core network gsmgprsbased iu cs pstn msc vlr gmsc hlr changes in the core network. Intro to 3g cellular systems and umts overview david tipper associate professor graduate telecommunications and networking program university of pittsburgh.
The open architecture of the wcdma core network wideband code division multiple access. Umts system architecture and protocol architecture overview on overall system architecture umts network architecture and elements mobile station. Umtsgsm network architecture gprs core packet switched sgsn ggsn internet gsm ran base station base station controller base station base station utran radio network controller node b. Figure 2 shows the protocol architecture for the lower layers of the mobile station. Umts, short for universal mobile telecommunications system, is a 3g networking standard used throughout much of the world as an upgrade to existing gsm module. Rnc, the rnc refers to radio network controller, and it controls the 3g sites.
It consists of base stations and radio access controller which bridges the gap between mobile station and core network. A nextgeneration core network architecture for mobile. Request pdf an introduction to 3g core network architecture. A usim stores userspecific data very similar to 3g sim card. All equipment has to be modified for umts operation and services. Pdu sessions and qos flows, core network architecture and components, network functions virtualization and finally network. The 3gpp 5g ran architecture specified in release 15 and known as ngran introduces new terminology, interfaces and functional modules. Cisco has in its portfolio packet core solutions for both 5g nonstandalone and 5g standalone networks.
Umts system architecture ue user equipment that interfaces with the user utran umts terrestrial radio access network handles all radio related functionality wcdma is radio interface standard here. Research article architectural shift from 4g to 5g. The constituent parts of 3g umts network are mobile station. Your guide to gprs network architecture mobile packet core. 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. Its key function is to direct telephone calls over the publicswitched telephone network.
The ims architecture as defined by the 3gpp standards is an allpacket core network that creates an accessagnostic environment to deliver a wide range of multimedia services that a user can access using any device or network connection. Thus, the current 3g packet core architecture is typically a centralized network design with the ggsns deployed in major data centers, and all the data services are backhauled from the sgsns which. Telecommunications network and service architectures. The epc is a multiaccess core network based on the internet protocol ip that enables operators to deploy and operate one common packet core network for 3gpp radio access lte, 3g, and 2g, non3gpp radio access hrpd, wlan, and wimax, and fixed access ethernet, dsl, cable, and fiber. It could be anything like data and voiceenabled mobile phones, tabs or computers which could be used as an end user. The overall architecture has not significantly changed. This article looks at the evolved packet core epc, the core network of the lte system, giving an overview of the architecture of the core network, describing some of its key elements. This course learns you the fundamentals of mobile packet switched ps core network in 2g and 3g, in simple way and short time.
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