Physicalcommunication32010217244 219 table 1 lte,lteadvanced,andimtadvancedperformancetargetsfordownlinkdlanduplinkul. First, the lte network reference model is defined and its basic evolved packet system eps entities and the functions of each entity are described. 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. Dec 01, 2018 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.
Chapters cover the upper layer signaling and system architecture evolution sae. China telecom launched commercial tdlte network on 4th feb 2014, and was issued fddlte license in feb 2015. In this network, the base terminal station btsnodebs. 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. The lectures also cover channel mapping and ue categories. Also this paper tries to present the advantages why operators are. Lte deployment requires evolution of backhaul transport lte is built on an allip architecture compared to 3g and previous generations of mobile technology, it has. The external interfaces of the ran domain except to the oss are standardized under 3gpp, as is the functional behavior of the ran domain as a whole. A more direct data and control path between the mobile user and the core. Evolution sae, the core network architecture for lte. Lte 4g network architecture lte core network mobile. 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 main goals of lte is to increase the capacity and data rates of wireless data networks, improve spectrum efficiency, improve coverage, reduced. Comparision of 3g wireless networks and 4g wireless. The technical paper utrautran long term evolution lte and 3gpp system architecture evolution sae is a good starting point. Sae system architecture evolution is the corresponding evolution of the gprs3g packet core network evolution. Lte is a 4g wireless communications standard developed by the 3rd generation partnership project 3gpp thats designed to provide up to 10x. Architecture and key features of lteadvanced networks. Lte tutorial presentation lte presentation with audio narration. Course contents historical vision lte capabilities system architecture 3. Mobile class targets 100 mbps with high mobility and nomadic local area class targets 1 gbpswith low.
Ofdm basics, lte channels, signaling procedures and mimo are covered. This paper explores the network architecture of 4g 4th generation and lte long term evolution wireless technologies, the mobile standards used by these technologies and key features. Myung 2 beyond 3g international mobile telecommunications imt2000 introduced global standard for 3g. Basic lte architecture video eutran, enodeb, epc, sgw. Lte network architecture evolution ville eerola helsinki university of technology ville.
Ltesae architecture and concepts have been designed for efficient support of. Huawei is one of the major wireless vendors in australia, delivering radio access network equipment in three of the four foremost communication service providers. Logical ran architecture target split into the functions rf, bpf, ppf, and rcft. The lte network architecture computer science university of. A functional representation of 3g network architecture is shown in figure 1. The ebn sends and receives radio transmissions to all the mobiles using the analogue and digital signal processing functions of the lte air interface. Feb 20, 2016 this video tutorial talks about lte architecture in detail to give holistic view of lte architecture. Lte architecture ip multimedia subsystem computer network. Jul 10, 20 this document provides a brief overview of the lte network architecture as the first technical document of lte area. Lte lte advanced for mobile broadband this book focuses on lte with full updates including lte advanced to provide a complete picture of the lte system. 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. Volte tutorial this voice over lte beginners guide will help you to understand the fundamentals of ip based voice communication in the 4g lte network. 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 first deployments were simply known as lte, but later deployments were designated 4g lte advanced and later still 4g lte pro. In addition to lte, 3gpp is also defining ipbased, flat network architecture. Ltelteadvanced for mobile broadband pdf, epub, docx and torrent then this site is not for you. Much of the lte standard addresses the upgrading of 3g umts to what will eventually be 4g mobile communications technology. It was the worlds first largescale 4g lte network, covering 38 major metropolitan areas and more than onethird of all americans at launch from there, verizon worked feverishly to expand. Launch of first 4g lte commercial networks in scandinavia. Named as lte long term evolution, the 4g system architecture is made up of an epc evolved packet core and evolved universal. Jan 16, 2011 the presentation on lte long term evolution slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Lte is mainly designed for high speed data applications both in the uplink and downlink. Difference between 3g and 4g technology with comparison. Systems beyond imt2000 imtadvanced is set to introduce evolutionary path beyond 3g.
Architecture slicing ability required connections 1,000k connections per. Lte stands for long term evolution and it was started as a project in 2004 by telecommunication body known as the third generation partnership project 3gpp. The 4g architecture basically build upon 3g or can say that it is a extension of 3g wireless technology. This keeps information about the users phone number, home network identity and security keys etc. Documentation technique orange developer orange developer architecture generale dun reseau 4g le nouveau reseau dacces. Lte architectural benefits key objectives of 4g lte networks are to support higher data rates, improve spectral efficiency, reduce network latency, support flexible channel bandwidths, and simplify or flatten the network by utilizing an all packet ethernetip architecture. Lte uses several different types of logical, transport and physical channel, which are distinguished by the kind of information they carry and by the way in which the information is processed in the transmitter. Deliver a reliable, low cost connection simplify services growth and scale. Long term evolution lte is the next generation 3gpp radio access network evolved umts terrestrial radio access network eutran system architecture evolution sae is the 3gpp next generation standard for mobile networks providing. Overview and detailed explanations are given for the latest lte standards for radio interface architecture, the physical layer, access procedures, broadcast, relaying, spectrum and rf. These technologies are often referred to as pre 4g or 3. Summary introduction to wireless lte 4g architecture and key. The difference between 3g and 4g technology is based on technology compliance, data transfer rate, capacity, ip architecture and number of connections, etc.
Mar 26, 2012 in lte architecture, evolved utran eutran is an important role which is the air interface of lte upgrade path for mobile networks meanwhile it is accompanied by an evolution of the nonradio aspects under the term system architecture evolution sae, which includes the evolved packet core epc network. Volte ims architecture ims core cscf, tas, mrf, bgw. Mobile 4g lte lte, lte advanced mobile 1g amps, nmt, tacs richer content video more connections 1 peak data rate for gsmgprs, latest evolved edge has peak dl data rates capable of up to 1. But before we jump into the architecture we need to understand what gave rise to the need of lte. Increased bandwidth endtoend ip simplified architecture. Main functionalities of each network node are discussed in detail along with examples. The presentation covers the imsi, guti, gummei, imeisv, rnti, tai and apn. Initiated in 2004, the long term evolution lte project focused on enhancing the universal terrestrial radio access utra and optimizing 3gpps radio access architecture. 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. Architecture and key features of lte advanced networks. Long term evolution advanced lteadvanced network is the continuation of. Long term evolution advanced lte advanced network is the continuation of.
This white paper will discuss why lte is now a highly attractive technology for private wireless networks across a wide range of enterprise verticals. Comparision of 3g wireless networks and 4g wireless networks. Lte identifiers presentation lte signaling protocol define a large number of identifiers for ues, rabs and signaling endpoints. This video tutorial talks about lte architecture in detail to give holistic view of lte architecture. Mar 05, 2018 volte ims architecture in simplified way. Lte standard has been published by 3gpp as an extension of umtsbased on 3gpp standard and 1xevdobase on 3gpp2 standard technologies. Article pdf available january 2012 with 11,841 reads. Lte fully abbreviated as longterm evolution is a technology involving firstgeneration 4g cellular networking. Nov 18, 2017 lte architecture basics 4g introduction this is the first part of the series ltearchitecture. 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 tutorial on lte also covers lte protocol stack, lte physical layer, lte network architecture and so on. This is followed by lectures that cover lte frequency bands, ofdm, ofdma, scfdma and lte signaling. A usim stores userspecific data very similar to 3g sim card. It addresses the performance attributes of the lte radio and system architecture and how the global lte ecosystem makes it.
An adtran white paper 4glte mobile backhaul reference. Huawei has also delivered australias largest private 4g lte network. Lte tutorial tutorial on lte basics rf wireless world. Lte mobile communicates with just one base station and one cell at a time and there are following two main functions supported by enb. This book presents the latest details on lte from a practical and technical perspective. The highlevel network architecture of lte is comprised of following three main components. 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. Written by agilents measurement experts, it offers a valuable insight into lte technology and its design and test challenges. 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.
Confidential reliance jio infocomm limited 1 2g, 3g and lte network architecture lte has a flat architecture. Verizon launched its 4g lte network on december 5, 2010. 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. 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.
Use of digital coding, modulation and communications. The lte network architecture has been presented as the first document of the lte technical document series. If you continue browsing the site, you agree to the use of cookies on this website. It based on the original 3g technologies having the ability to reach the speed up to 100 mbits with a muchreduced latency.
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