The following targets or high level requirements are defined for lte in that workshop 5. 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. Several key differences in a lte network enable more flexibility in its architecture than in a 3g. An mvno is a business model that emerges when the traditional mobile value chain is ruptured. A baseline architecture for private lte is shown in figure 2. We will have a look at the call flow diagrams about different procedures.
The epc is the latest evolution of the 3gpp core network architecture. We will also cover 5g deployment scenarios from the specs as well as some of the informative web resources. Call flow is how signaling and sessions are created across an lte network. Increased bandwidth endtoend ip simplified architecture. The source of these pictures are spirent and squaretek. In gsm, the architecture relies on circuitswitching cs. Launch of first 4g lte commercial networks in scandinavia. Fujitsu has developed outdoor long term evolution lte infrastructure equipment. Lte architecture and lte attach linkedin slideshare. The internal architecture of the user equipment for lte is identical to the one used by umts and gsm which is actually a mobile equipment me. January 2018 journal of advanced research in dynamical and. Pdf 4g is new wireless technology developed by the third generation partnership project 3gpp with objectives of highdatarates, low. Main functionalities of each network node are discussed in detail along with examples.
Mar 05, 2018 volte ims architecture in simplified way. Summary introduction to wireless lte 4g architecture and key. Ran architecture evolution drivers from a network architecture perspective, the main options for lte up to the present have been either fully distributed or fully centralized baseband deployment, each with its own pros and cons. Spirent ims rchitecture te lte use eipent pespetive 6. To be able to move on to other lte technical documents that follow, fundamental understanding of the entities and interfaces of the eps system is required. Jul 10, 20 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.
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. Volte, voice over lte is an imsbased specification. Feb 20, 2016 this video tutorial talks about lte architecture in detail to give holistic view of lte architecture. A usim stores userspecific data very similar to 3g sim card. Lte provides a packet switched model at the sap, but retains a circuit switched model at the phy. With category 1 support, power and throughput optimization, and other. The architecture of evolved packet core epc has been illustrated below. Umts network architecture basic configuration, release 3 bss bsc rns rnc cn node b node b a iups iur iub uu msc sgsn gs gmsc ggsn hlr gn gr gc c d e auc h eir f gf pstn gi gb iucs vlr b gp. Long term evolution protocol overview nxp semiconductors. Gsm explain gsm architecture with a neat block diagram. Looking for examples of lte network architecture diagram. 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. Lte architecture basics 4g introduction this is the first part of the series lte architecture. Ims architecture most discussions of the ims include a graphic portrayal of its architecture in terms of a single flat network1 or as three separate layers2.
Data rate in 4g system will range from 20 to 100 mbps. System architecture for 3gpp lte modem using a programmable. Jul 19, 2017 i am adding the architecture diagram of 2g, 3g, 4g for reference. 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. Base station subsystem gprs protocol control plane. Jul 27, 2017 lte long term evolution is known as the evolution of radio access technology conducted by 3gpp.
However it is essentially the handset in the broadest. A functional representation of 3g network architecture is shown in figure 1. Lte 4g network architecture lte core network mobile. Lte architecture enhancements for non3gpp accesses. Following diagram shows the functional split between the eutran and the epc for an lte network. The mdm92071 lte modem offers device makers, system integrators, and developers a commercially proven chipset platform with high quality 3g4g lte multimode and multiband support, designed to bring reliable cellular connectivity on major network carriers worldwide. The gsm contains most of the necessary capabilities to support packet transmission over gsm. The critical part in the gprs network is the mobile to gsn mssgsn link which includes the msbts, btsbsc, bscsgsn, and the sgsnggsn link. This year 2015 the mobile phone celebrates its 30th birthday in the uk. Therefore, new players can participate in the mobile value chain and extract value leveraging their valuable assets. 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.
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. Most employ an arm design for very low power usage processors contain their own micro os and memory. It is an integration of various technologies including gsm,cdma,gprs,imt2000,wireless lan. The mobile phone and subscriber identity module, the umts radio access network and, supporting voice with. Volte service description and implementation guidelines. Key words long term evolution, lte, umts, hspa, flat architecture 1. 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. In fact, call flow and signaling is unique for lte, and is driven by 3gpp standards. System architecture for 3gpp lte modem using a programmable baseband processor conference paper pdf available november 2009 with 3,644 reads how we measure reads. Mobile virtual network operator mvno basics valoris viewpoint 2 what is a mobile virtual network operator mvno.
In this network, the base terminal station btsnodebs aggregate the radio access network ran traffic and. Lte architecture and interfaces linkedin slideshare. Private lte and 5g the need for a private lte network solution wireless technologies have proliferated to almost all corners of the globe and continue to evolve toward full mobile broadband capability. The evolved packet core epc the allip epc used in lte is a part of the transport block of the architecture, where transport is the entity through which the overall network e. Lte enodeb s1 startup, mibsib broadcast and rrc connection learn about enodeb startup. But before we jump into the architecture we need to understand what gave rise to the need of lte. These components are like the earthquake and tsunami warning system etws, the equipment identity register eir and policy control and charging rules function pcrf. This article on 5g cell phone architecture covers 5g cell phone block diagram with internal modules of 5g cellular phone architecture. Umts system architecture and protocol architecture overview on overall system architecture umts network architecture and elements mobile station. Volte ims architecture ims core cscf, tas, mrf, bgw.
Lte architecture and interfaces overview telecom hub. The architecture of lte network and working principle lte is a standard for wireless data communications technology and an evolution of the gsmumts standard. It works on radio frequencies in various bands as per country wise. 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. Comparision of 3g wireless networks and 4g wireless. It will not completely substitute the manual configuration and optimization. This keeps information about the users phone number, home network identity and security keys etc. A schematic survey on different handover techniques in the lte networks. 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. The path to lte will include many improvements to network elements in existing mobile networks. Get the best seminar report on volte technology with volte ppt and tutorials, diffrence between volte and voip, architecture diagram. An adtran white paper 4glte mobile backhaul reference. Pdf system architecture for 3gpp lte modem using a.
Pdf survey on lte network architecture and its security aspects. Lte architecture including role of the enodeb in the network and key concepts. In order to simplify protocol architecture, lte brings some major changes to the existing. Designing of lteadvanced downlink transceiver on a. The following architecture diagram shows epc, ims and the interface between them. In this second part of 15 mins with 5g we will start looking at the 3gpp specifications for 5g network architecture and learn how to refer the specs. Systems beyond imt2000 imtadvanced is set to introduce evolutionary path beyond 3g. First, the lte network reference model is defined and its basic evolved packet. The lte network called eps evolved packet system is an endtoend e2e all ip network. Myung 2 beyond 3g international mobile telecommunications imt2000 introduced global standard for 3g.
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 above diagram it shows interface bw ofcs and p gw is gz which will use. It has an open, distributed architecture the separation of switching and service control functions full use of ss7 as the signaling infrastructure its clearly defined and specified interfaces the nature of its in structure general packet radio service gprs and enhanced data rates for global evolution edge. The diagram below depicts eschats original basic over the top ptt service architecture. Using 4g lte for both primary and backup networking helps distributed enterprises enable branch office connectivity and applications like digital signage, kiosks, cctv, popup stores, pointofsale systems, instore wifi, and a variety of transportation applications. It includes radio access, devices and core network. This document presents the lte network architecture as the first technical document of lte area. Smartphone architecture rochester institute of technology. This includes various network entities, how they interact selection from voice over lte volte book.
In above diagram it shows interface bw ofcs and pgw is gz which will use. There are few more components which have not been shown in the diagram to keep it simple. There are few more components which have not been shown in the diagram to keep it. The highlevel network architecture of lte is comprised of following three main components. The architecture and implementation results of an lte category 4 modem based on a novel programmable baseband processor, leocore 1, is presented, which is the.
Mobile class targets 100 mbps with high mobility and nomadic local area class targets 1 gbpswith low. User equipment ue ue is a mobile terminal authorized to be used in an lte network. The paper starts with a discussion about interworking between lte and 5g then explores. Pdf mobile network architecture evolution 1g to 4g. This paper will concentrate also to describe the main functions of the most important network elements. The user equipment or ue is a major element of the overall 3g umts network architecture. Mar 24, 20 i am adding the architecture diagram of 2g, 3g, 4g for reference. The physical layer itself maintains the continuous connection model, especially on the downlink, where there is continuous transmission. This is followed by lectures that cover lte frequency bands, ofdm, ofdma, scfdma and lte signaling. Get the best seminar report on volte technology with volte ppt and tutorials, diffrence between volte and voip, architecture diagram for engineering and projects. The mobile equipment comprised of the following important modules. In view of the far greater number of applications and facilities that it can perform, the decision was made to call it a user equipment rather than a mobile. In essence, the choice of architecture is a tradeoff between. Lte architecture hss interfaces reference points s1mme s6a mme operators ip s11 services s10 sgi s1u serving s5 ue enb pdn gw sgi internet gw lte uu x2 functional entity logical entity network entity enb enhanced node b mme mobility management entity sgw serving gateway pdn gw packet data network gw hss home subscriber.
With long term evolution lte comes a myriad of new and exciting attributes. Jul 18, 2017 in this video we discuss three topics. Lte architecture and discuss the spectrum options and migration strategies for operators interested in deploying lte. With long term evolution lte comes a new and exciting attributes. Ue may be a smartphone, tablet or other communication devices. The mobile phone and subscriber identity module, the umts radio access network and, supporting voice with the circuit switched core network. Outdoor lte infrastructure equipment enodeb fujitsu. Call flow is how signaling and sessions are established across an lte network.
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