The servicedriven 5g network architecture aims to flexibly and efficiently meet diversified mobile service requirements. It increases the capacity and speed using a different radio interface together with core network improvements. Zonghua zhang, ahmed meddahi, in security in network functions virtualization, 2017. Confidential reliance jio infocomm limited 1 2g, 3g and lte network architecture lte has a flat architecture. The bigger question is how does an enodeb gets connected with packet core. Network slicing is a good example of the need for automation. The evolved umts terrestrial radio access network e. The architecture of evolved packet core epc has been illustrated below. The objective of this logical architecture is to enable a flat ip. Volte sip handset sip support, uac, uas, user agent, sipua, underlying lte network dedicated bearer, qci, default bearer, ims core network sip servers, pcscf, icscf, scscf, tas, bgw, mrf, atcf, atgw, mgcf, pstn breakin or breakout calls.
The lte network architecture explained in this document applies to a lte only network provided by a single operator and thus has covered the most basic components of the eps system. Different issues related to the physical deployment in the access, metro and core networks of the 5g network are discussed in section 5 while in section 6 we present software. Evolved packet core epc is a framework for providing converged voice and data on a 4g longterm evolution lte network. Allip, simplified network architecture new, allip mobile core network introduced with lte endtoend ip allip clear delineation of control plane and data plane simplified architecture. But underneath the antennas, the core network engineer is the one that ensures full connectivity in the entire mobile network although 3g was the first technology to give real mobile access to the web, it wasnt until. The main component of the sae architecture is the evolved. The infrastructure of an lte cellular network comprises the eutraeutran air interface and the evolved packet core epc, which includes the gateways, mobility management and subscriber databases. System architecture evolution national chengchi university. Network eutran evolved packet core epc epc communicates with packet data networks pdn in the outside world such as internet, private corporate networks or ims. In telecommunications, longterm evolution lte is a standard for wireless broadband communication for mobile devices and data terminals, based on the gsmedge and umtshspa technologies. The 5g core network architecture is at the heart of the new 5g specification and enables the increased throughput demand that 5g must support. He has spent the last 15 years in architecture roles within nortel, most recently as chief architect for nortels cdma and. Section 4 gives an overview of the lte architecture, while section 5 gives an overview of the comparison between all architectures 2.
Utran on the access side and evolved packet core epc on the. Lte network architecture in lte lte network architecture in lte courses with reference manuals and examples pdf. We offer complete centralised infrastructure for scalable 4g lte core networks including epc, core ip, wireless backhaul. The lte network architecture strategic white paper 3 3. Typical mobile network architecture with mobile backhaul network portion highlighted. Introduction to evolved packet core to cvtdallas online. Because this type of network architecture is agile enough to be moved without running more cabling, its possible to change direction without delay. Since small cells focus on 3g and lte networks, the core network is generally a flat ip mobile architecture.
Current 3gpp standards include the latest version of global system for mobile communication gsm, universal mobile telecommunications system umts and long. Nokia ultra compact network up to 400 active users up to few km range about 5 minutes setup time 25 kg multiple form factors. Mobile core network an overview sciencedirect topics. The core network is typically one specified in 3gpp, or 3gpp2 sets of standards, and is extended to support small cells. With softwaredefined networking sdn and network functions virtualization nfv supporting the underlying physical infrastructure, 5g comprehensively cloudifies access, transport, and core networks.
The evolved packet core communicates with packet data networks in the outside world such as the internet, private corporate. Then the significant part of the course describes some details of the radio interface layout, channels, procedures, changes to legacy lte radio, etc. Physicalcommunication32010217244 219 table 1 lte, lte advanced,andimtadvancedperformancetargetsfordownlinkdlanduplinkul. Over time, heavy reading expects standalone 5gc to become the common core for 5g nr, evolved lte and fixed access. Evolved packet core epc in 4g lte networks by telcoma. Realizing icn in 3gpps 5g nextgen core architecture. We put the core network in a cloud and represent the connection of the core network with the ran side with a straight line representing user plane and dotted line representing control plane. Deployable lte solutions standalone network embedding lte radio, core and applications. Reliance jio, a large isp in india has created a superfast lte network that can reach up to 5 mbps and serve 90% of the population in india, an outstanding 1. The long term evolution standard lte is a wireless communications, highspeed data standard for mobile phones and data terminals.
Mar 05, 2018 volte ims architecture in simplified way. 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. Mobile packet core mobile packet core engineer guide. The evolved packet core epc is an ipbased core network infrastructure. Volte ims architecture ims core cscf, tas, mrf, bgw. We offer a complete range of epc and ip core infrastructure for small, medium and large scale networks. Eps is divided into two parts lte part which deals with the technology related to a radio access network eutran and epc part which deals with the technology related to a core network. In the next section we shall discuss about the various technical challenges and discuss in detail the key technologies which make the transition from 3g to 4g possible. Lte standards and architecture lte standards wiley online.
The sae has a flat, allip architecture with separation of control plane and user plane traffic. The evolved packet core communicates with packet data networks in the outside world such as the. The epc is the latest evolution of the 3gpp core network architecture. Explain lte network architecture and various interfaces. Sae is the evolution of the gprs core network, with some differences. The goal of the epc is higher throughput, lower latency, simplified mobility between thirdgeneration partnership project 3gpp and non3gpp networks, enhanced service control and provisioning, and efficient use of network resources. Core network planning lteeps and umts meets the requirements from experienced professionals, dealing with operational and planning aspects of the mobile core networks. For a more detailed depiction of the related network connections, a poster titled lte and the mobile internet is available for download from spirent communications.
The most frequent difference that i noticed were the different point of observation in overall network architecture and different level of the details. Core network epc for lte ntt docomo technical journal vol. Increased bandwidth endtoend ip simplified architecture. Physicalcommunication32010217244 219 table 1 lte,lteadvanced,andimtadvancedperformancetargetsfordownlinkdlanduplinkul.
Term evolution lte refers to the logical architecture composed of the radio access network ran, called the evolved universal terrestrial radio access network eutran in the case of lte, and the evolved packet core epc as defined in 1, 2 and illustrated in fig. Not only was the radio access network improved for 4g lte, but the network architecture was overhauled enabling lower latency and much better interconnectivity between elements of the radio access network, ran. 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. Lte architecture ip multimedia subsystem computer network. The course gives a detailed description of postr99 system architectures, their configuration options and additional features. The evolved packet core epc of long term evolution lte provides a good base for presenting practical elements of. It is all ip network and is based on packet switching for voice as well as data unlike 2g3g where it is circuit switch for voice and packet switch for data. This paper proposes an architecture for enabling the sharing of long term evolution lte infrastructures based on multioperator core network mocn, a wellknown specification where different evolved node b enb base stations are shared among multiple mobile telecommunication operators in order to reduce capital capex and operational opex. Pdn gateway pgw serving gateway sgw mobility management entity mme.
Next to be completed was the standalone 5g radio with the new 5g core architecture option 2. These components are described as the earthquake and tsunami warning system etws, the. Evolutionary analysis of gsm, umts and lte mobile network. The objective is for operators to be able to deploy 5g in standalone mode, using a 5g core and without dependencies on the lte network, by 2020. System architecture evolution sae is the core network architecture of 3gpp s lte wireless communication standard. The highlevel network architecture of lte is comprised of following three main components. Common ip architecture core ip unified communications voice features ecommerce web hosting location services other feature servers network mgt call agent gsmgsm cdmaone umts cdma2000 ofdmofdm mobility management access radio network controller. First in the finalization schedule was the approach with long. Sep 22, 2016 umts core network and its evolution 1. Evolutionary analysis of gsm, umts and lte mobile network architectures paschal a. So i decided to write a post which can be visuallize the details of overal lte networks with various different angle so that we can explicitely point of the points on which both parties focus. We mainly focus on the long term evolution lte but the framework can also. Figure 3 shows the system model that proposes design of network architecture for 5g mobile. If you continue browsing the site, you agree to the use of cookies on this website.
Lte network architecture in lte tutorial april 2020. The evolved packet core communicates with packet data networks in the outside world such as the internet, private corporate networks or. The architecture of the nfv over the mobile core network can scale dynamically, according to its specific resource requirements e. Lte mobile broadband networks might look like an obvious job for a wireless network engineer. Deploying an lte network of this scale involves a combination of wireless, infrastructure and networking experience. This network is composed of three major sub networks. The highlevel network architecture of lte is comprised of below three main components. Lte network nodes lte refers to long term evolution, and the architecture of the lte network is as following, enodeb the enodeb is the 4g site that the ue. The lte network architecture has been presented as the first document of the lte technical document series. The evolved architecture comprises evolved universal terrestrial radio access network e.
Core network will be changed in epc which stands for evolved packet core. Enhancement of the utra optimisation of the utran architecture to ensure the continued competitiveness of the 3gpp technologies for the future lte was the first and only technology recognized by the next generation mobile network alliance to meet its broad requirements target deployment in 2010. For people who would like to know about telecommunication jobs, the mobile network core has a valuable set of jobs. Nokia compact network up to active users per cell up to 60km range about 15 minutes setup. Pdu sessions and qos flows, core network architecture and components, network functions virtualization and finally network. 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. Ran, new radio and evolved lte and 5g core network 5gc, supporting end to end flow based qos and network slicing separated by a standardized, unified and open interface, which allows a multivendor deployment. Actually, most of people dont know about mobile core field. He is responsible for nortels technology vision in 4g and in particular lte, and has shaped nortels product and standards strategy in this field, advocating seamless intertechnology handoff and flat network topologies. Lte network architecture and protocol pdf free download ebook, handbook, textbook, user guide pdf files on the internet quickly and easily. The presentation on lte long term evolution slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Discover 5g core network functions compared to 4g lte. System architecture evolution sae is the core network architecture of 3gpps lte wireless communication standard. In gsm, the architecture relies on circuitswitching cs.
An adtran white paper 4glte mobile backhaul reference. Introduction this document provides an overview of the architecture for the 5g packet core, including a description of the functions of the network elements. There are few more components which have not been shown in the diagram to keep it simple. Lte network architecture and protocolpdf free download. And in fact, wireless knowledge is essential when optimizing the service itself. A concatenation of policy decision function pdf and charging rules function. This is introductory slides pack for a 10 classslides set for detail introduction of 2g3g and lte ps core network. This document presents the lte network architecture as the first technical document of lte area. 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 eutran. The training starts with an overview of new network elements, radio additions and features for lte m and nbiot operations. Lte 4g network architecture lte core network mobile. The lte network called eps evolved packet system is an endtoend e2e all ip network.
The lte network architecture explained in this document applies to a lte only network provided by a single operator and thus has. The evolved packet core epc the core network the very basic architecture of evolved packet core epc has been illustrated below. Towards an open source architecture for multioperator lte core networks article pdf available in journal of network and computer applications 75 august 2016 with 20,579 reads. Small cells are used in a variety of network architectures, and air interfaces, to complement 2g, 3g, and 4g. 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 evolved umts terrestrial radio access network eutran. There are various entities forming the lte network architecture, the main interfaces are uubetween ue and enb, x2 interface between enbs and s1 interface between enb and epcevolved packet core. Towards an open source architecture for multioperator lte.