Basic netmanias enposttechdocs5904ltenetworkarchitectureltenetworkarchitecturebasic. According to different service requirements, fiberoptic cable availability and network resource allocations, ran real time and nonreal time resources can be deployed on the site or on the access cloud side. System architecture evolution national chengchi university. Once connected to the cellular providers network, the smartphone can communicate with the outside. Engineers involved in the design of lte interfaces and network equipment, as well as those involved in the first. Design, deployment and performance of 4glte networks. Course contents historical vision lte capabilities system architecture 3. The huge role of the internet in todays world of information exchange is undeniable. Lte advanced protocol stack consists of user plane and control plane for as and nas. Difference between 3g and 4g technology with comparison. A network run by one operator in one service is known as a public land mobile network plmn. An evolution 499 network coding for interference management, which can imp rove security, throughput and robustness for routing of information through the network. Nov 14, 2015 this video explains lte meaning, full forms, speed and all important components of lte architecture like network, eutran, sae, epc, mme, hss, sgw, pgw, pdn, enb, enodeb etc category.
Core network epc for lte ntt docomo technical journal vol. Deliver a reliable, low cost connection simplify services growth and scale. It runs an application known as the universal subscriber identity module usim. Puente, konstantinos samdanis, and bessem sayadi lte advanced pro the authors discuss 3gpp eps mobile network evolution as a whole, analyzing specific architecture. Nr rach preamble msg1 the ue initiates the randomaccess procedure with the 5g gnodeb. Also this paper tries to present the advantages why operators are. The current fourth generation wireless mobile network 4g based on allip network architecture provides high data rates, low latency and lowcost implementation. A concatenation of policy decision function pdf and charging rules. An adtran white paper 4glte mobile backhaul reference. Lte advanced architecture for eutran consists of pgw,sgw,mme,s1mme,enb,henb,henbgw, relay node etc. Lte system according to the release 8 version of the specifications. Introducing 5g networks characteristics and usages.
You will find the various different type of sae diagram from various source ranging from very simple to extremly complicated one. Jul 10, 2017 the difference between 3g and 4g technology is based on technology compliance, data transfer rate, capacity, ip architecture and number of connections, etc. Networkpdnbyassigninganipaddressfromthe pdntotheue,amongotherfunctions. Below is a brief description of each of the components shown in the above architecture. Barth all rightsreserved2006, alcatel 25 system architecture evolution objectives new core network architecture to support the highthroughput lowlatency lte access system simplified network architecture all ip network all services are via ps domain only, no cs domain. Physicalcommunication32010217244 219 table 1 lte,lteadvanced,andimtadvancedperformancetargetsfordownlinkdlanduplinkul. Sae service architecture evolved simply put, sae is just a terminology representing lte network architecture. The difference between 3g and 4g technology is based on technology compliance, data transfer rate, capacity, ip architecture and number of connections, etc. Rans supported by 5g architecture are gsm, gprsedge, umts, lte, lteadvanced, wimax, wifi, cdma2000, evdo, cdma one, is95 etc. Lte5gnr ue lte enodeb 5gnr gnodeb 4g core network ue mn. This page describes lte network architecture with system elements. Lte refers to long term evolution, and the architecture of the lte network is as following, the enodeb is the 4g site that the ue connects to. The evolved umts terrestrial radio access network e.
Jul 10, 20 this document provides a brief overview of the lte network architecture as the first technical document of lte area. The architecture of lte network and working principle lte is a standard for wireless data communications technology and an evolution of the gsmumts standard. Allows the home network operator to see all the traf. It was the combination of these two network elements that provided the basis for the 3g umts network architecture. Design, deployment and performance of 4glte networks addresses the key practical aspects and best practice of 4g networks design, performance, and deployment. Nr sss ue acquires the 5gnr secondary synchronization signal. The highlevel network architecture of lte is comprised of following three main components. With the deployment of new technologies still on the way, the era beyond 3g and 4g requires that cellular and radio technologies need to work together. In this network, the base terminal station btsnodebs aggregate the radio access network ran traffic and transport it over a mobile.
The home subscriber server hss component has been carried forward from umts and gsm and is a central database that contains information about all the network operators subscribers. Although allip networking is the ultimate goal of 4g wireless networks, 3g lte and wimax systems have designed semi allip network architectures for. Mobile network architecture evolution toward 5g peter rost, albert banchs, ignacio berberana, markus breitbach, mark doll, heinz droste, christian mannweiler, miguel a. Few people in the mobile industry dispute the inevitability of 4g longterm evolution lte, but the timing and the nature of deploying lte network technology and infrastructure is less certain. This page covers lte advanced architecture and lte advanced protocol stack. Restrained by the long term evolution lte limited network capacity, wifi technology is considered as one of. The radio access network changed considerably as a completely new radio interface was used based around the use of cdma. Would you like to find out more about lte, but have little time to devote to it. This diagram from juniper networks shows the relationship of the lte radio access network ran to the lte evolved packet coresystem. This is also known as the sim card for lte equipments. Introducing 5g networks characteristics and usages the fifth generation networks 5g is currently under development and will hit the market at the horizon 2020. The presentation will outline the kpis and key optimizations at the platform, nfvi and stack level in implementing wireless base station stack and telco edge cloud on intel architecture. This keeps information about the users phone number, home network identity and security keys etc.
Aug 22, 2017 the presentation will outline the kpis and key optimizations at the platform, nfvi and stack level in implementing wireless base station stack and telco edge cloud on intel architecture. This document provides a brief overview of the lte network architecture as the first technical document of lte area. Compared with the current 4g lte technology, 5g is targeting to. This architecture is defined as part of the system architecture evolution sae effort. Thus, in order to achieve the goals, the architecture of the network if different from the previous wireless data transfer network, gprs. If i represent it graphically, it looks as follows. The most frequent difference that i noticed were the different point of observation in overall network architecture and different level of the details. Several key differences in a lte network enable more flexibility in its architecture than in a 3g. But there are few specific user applications that require very high data rate and uninterrupted access to the internet. In addition to lte, 3gpp is also defining ipbased, flat network architecture. Evolutionary analysis of gsm, umts and lte mobile network. 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. Lte advanced architecture lte advanced protocol stack.
Systems beyond imt2000 imtadvanced is set to introduce evolutionary path beyond 3g. Rather than a onesizefitsall approach, 4g lte architecture is being determined by the specific competitive and opportunity drivers that provide the. Lte network architecture in lte lte network architecture in lte courses with reference manuals and examples pdf. This paper provides a short, but comprehensive, overview of the lte network architecture and interfaces. Research article architectural shift from 4g to 5g. There are few more components which have not been shown in the diagram to keep it. Myung 2 beyond 3g international mobile telecommunications imt2000 introduced global standard for 3g. So, in post, a comprehensive overview of the network architecture and basic working principle of lte network is going to be discussed. 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. The functional decomposition of the 5g radio access network presents the network designer with many challenges with regards placement of. The lte architecture consists of lte eutran and lte evolved packet coreepc. Lte network architecture evolution ville eerola helsinki university of technology ville. When you buy a smartphone, you are typically required to sign up for a service plan that defines a certain amount of calling minutes and data usage. Lte procedures on s1 and x2 interfaces are described in detail.
For the distributed enterprise market, 4g lte network technologies are a catalyst for new enterprise network architectures, innovative business paradigms, and improved operations. In addition, the book focuses on the endtoend aspects of the lte network architecture and different deployment scenarios of commercial lte networks. 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. Lte network architecture in lte tutorial april 2020. However, in order for deployment of a 4g lte network to make business sense, it must be implemented in a way that streamlines operations. During a common wide area radio access technology and supple network architecture wimax and lte has. Lte presentation ppt free download as powerpoint presentation. Increased bandwidth endtoend ip simplified architecture. The eutran the access network the architecture of evolved umts terrestrial radio access network eutran has been illustrated below. Lte system architecture rapid development of various communication technologies, both fixed and mobile, has caused, first of all, an increased interest in accessing the internet. The main goals of lte is to increase the capacity and data rates of wireless data networks, improve spectrum efficiency, improve coverage, reduced latency and packetoptimized system that. 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 presentation will use the flexran lte reference phy and nev sdk for mec to outline the nfv and 5g use cases like network slicing. Comparision of 3g wireless networks and 4g wireless networks. Lte has a whole internet protocol ip network architectures structure and is intended to support voice, favoring visual or voice blogs online. Telecommunications network and service architectures. A usim stores userspecific data very similar to 3g sim card. Pgw lies in the home network, through which all the users traf. A functional representation of 3g network architecture is shown in figure 1. The evolved packet core communicates with packet data networks in the outside world such as the. Lte standard has been published by 3gpp as an extension of umts based on 3gpp standard and 1xevdobase on 3gpp2 standard technologies. The 4g lte private mobile network solution replicates a 4g 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.
Because this type of network architecture is agile enough to be moved without running more cabling, its possible to change direction without delay. The paper also briefly touches the bearer establishment procedure. This video explains lte meaning, full forms, speed and all important components of lte architecture like network, eutran, sae, epc. The architecture of lte networks is given the technical term system architecture evolution or the corresponding abbreviations sae. Mobile class targets 100 mbps with high mobility and nomadic local area class targets 1 gbpswith low. In order to make smooth transition from 3g to 4g the mobile communication companies are promoting super 3glte. Comparision of 3g wireless networks and 4g wireless. The architecture of evolved packet core epc has been illustrated below. This paper presents the results of a detailed survey on the fifth generation 5g cellular network architecture and some of the key emerging technologies that are helpful in improving the architecture and meeting the demands of users. A roaming user is connected to the eutran, mme and sgw of the visited lte network lte sae allows the pgw of either the visited or the home network to be used inter working with other networks. With the evolution towards ipbased network, the circuit switched network is migrating towards a new architecture called next generation network ngn which emulates the behavior of circuit switching.
Lte 4g network architecture lte core network mobile. Dimensioning of lte network description of models and tool, coverage and capacity estimation of 3gpp long term evolution radio interface abdul basit, syed masters thesis submitted in partial fulfillment of the requirements for the degree of masters of science in technology espoo, february, 2009. It is compared to previous wireless networks and provides a simpler structure to process with greater amounts of data. The paper introduces control plane and user plane architecture. A sophisticated modern mobile technology termed the. It is designed to enable the reader to become conversant rapidly with the main principles of the lte network architecture.
Cuttingedge technologies and a redesigned wireless network architecture are the foundation of 5g. The companies are upgrading 3g technology by initializing the introduction of high speed downlink packet access hsdpa service, which increases the. 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. Additionally,the evolvedpacketdatagatewayepdgprovidessecurity. Nr pbch mib ue acquires the 5gnr broadcast channel. First, the lte network reference model is defined and its basic evolved packet system eps entities and the functions of each entity are described. To meet these demands, drastic improvements need to be made in cellular network architecture. As shown 5g network uses flat ip concept so that different rans radio access networks can use the same single nanocore for communication. The lte network architecture a comprehensive tutorial long term evolution lte is the latest buzzword on everyones lips, but are you as conversant with the lte architecture as you would like to be, or more importantly need to be.
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