Based on bch broadcast channel signal and hierarchical sch synchronization channel signals. This video tutorial talks about lte architecture in detail to give holistic view of lte architecture. In above diagram it shows interface bw ofcs and pgw is gz which will. First,theevolutionfromthirdgeneration 3gtofourthgeneration4gisdescribedintermsofperformancerequirementsand. Long term evolution protocol overview nxp semiconductors. This architecture is defined as part of the system architecture evolution sae effort. This new architecture optimizes network performance, improve cost efficiency and facilitate the uptake of mass market ip based services. Jul 31, 2017 mobile networks overview 2g 3g 4glte 1. Feb 20, 2016 this video tutorial talks about lte architecture in detail to give holistic view of lte architecture. 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.
Lte phy overview gwanmo ku adaptive signal processing and information theory research group nov. Mar 26, 2012 thus, in order to achieve the goals, the architecture of the network if different from the previous wireless data transfer network, gprs. Systems beyond imt2000 imtadvanced is set to introduce evolutionary path beyond 3g. Jul 27, 2017 lte long term evolution is known as the evolution of radio access technology conducted by 3gpp. 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. Myung 2 beyond 3g international mobile telecommunications imt2000 introduced global standard for 3g. The lte network architecture rmd engineering college. Sae system architecture evolution is the corresponding evolution of the gprs3g packet core network evolution. This keeps information about the users phone number, home network identity and security keys etc. The objective of this paper is to study, analyze, plan long term evaluation network overview such as lte specification, planning, lte architecture, related works, private work and conclusion.
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. Lte architecture and interfaces overview telecom hub. Sep 03, 2018 this covers the 5g core network as it is today after june 2018s publication of rel 15 stage 3. Nchu cse lte 2 system architecture evolution sae packet core networks are also evolving to the flat system architecture evolution sae architecture. Umts is a complete system architecture as in gsm emphasis on standardized interfaces mix and match equipment from various vendors simple evolution from gprs allows one to reuseupgrade some of the gprs backhaul equipment backward compatible handsets and signaling to support intermode and intersystem handoffs. Increased bandwidth endtoend ip simplified architecture. Lte procedures on s1 and x2 interfaces are described in detail. In addition to lte, 3gpp is also defining ipbased, flat network architecture. The technical paper utrautran long term evolution lte and 3gpp system architecture evolution sae is a good starting point initiated in 2004, the long term evolution lte project focused on enhancing the universal terrestrial radio access utra and optimizing 3gpps radio access architecture.
If you continue browsing the site, you agree to the use of cookies on this website. Lte a meets and exceeds all requirements for 4g as specified in imtadvanced. This paper provides a comprehensive tutorial of the overall eps network architecture, giving an overview of the functions provided by the core network cn and e. This document presents the lte network architecture as the first technical document. The first deployments were simply known as lte, but later deployments were designated 4g lte advanced and later still 4g lte pro. Ieee is standardizing mobile wimax threat for loosing competitive edge. This document presents the lte network architecture as the first technical document of lte area. This is followed by an analysis of the threats posed 46 to lte networks and supporting mitigations. The radio access network will evolve to eutran evolved umts terrestrial radio access network, and the correlated core network will evolved to sae system architecture evolution. The evolved packet core communicates with packet data networks in the outside world such as the internet. Physicalcommunication32010217244 219 table 1 lte,lteadvanced,andimtadvancedperformancetargetsfordownlinkdlanduplinkul.
Lte have a significant effect on the operation of mobile devices. The evolved umts terrestrial radio access network eutran. An overview of lte positioning 7 spirent white paper positioning architecture in lte networks positioning information exchange between the ue and the lte network is enabled by the lte positioning protocol. Jul 10, 20 this document provides a brief overview of the lte network architecture as the first technical document of lte area. This paper provides an overview of the mac for 3gpp long term evolution lte also. The term lte is typically used to represent both lte and sae. This paper provides an overview of ims, its architecture and applications from the perspective of the lte user equipment ue. Lte a has frequency reuse factor of 1 since spectrum is expensive, uses highorder mimo. Main functionalities of each network node are discussed in detail along with examples. Lpp is similar to protocols such as rrc, rrlp, and is801 already deployed in 2g and 3g networks2 time difference of arrival.
Summary introduction to wireless lte 4g architecture and key. Mobile terminal or user equipment ue acquires time and frequency synchronization with a cell and detects the cell id of that cell. 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. Mobile class targets 100 mbps with high mobility and nomadic local area class targets 1 gbpswith low. The paper introduces control plane and user plane architecture. 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. Lte provides a packet switched model at the sap, but retains a circuit switched model at the phy. 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.
This document serves as a guide to the fundamentals of how lte networks operate 45 and explores the lte security architecture. The first release of lte provides peak rates of 300 mbs, a radionetwork delay of less than 5 ms, a significant increase in spectrum efficiency com. Overview of lte radio interface and radio network architecture for high speed, high capacity and low latency. The lte network called eps evolved packet system is an endtoend e2e all ip network. It also provides a look at the evolution to a dataonly lte network and includes a discussion of. The long term evolution standard lte is a wireless communications, highspeed data standard for mobile phones and data terminals. The physical layer itself maintains the continuous connection model, especially on the downlink, where there is continuous transmission. 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 support mutliple radio access. 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.
The architecture of lte network and working principle lte is a standard for wireless data communications technology and an evolution of the gsmumts standard. 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 paper also briefly touches the bearer establishment procedure. Lte architecture overview free download as powerpoint presentation. There are few more components which have not been shown in the diagram to keep it. We will also cover 5g deployment scenarios from the specs as well as some of the informative web resources. This book focuses on lte with full updates including lte advanced to provide a complete picture of the lte system. The highlevel network architecture of lte is comprised of following three main components. This paper provides a short, but comprehensive, overview of the lte network architecture and interfaces.
Lte a can aggregate up to 5 carriers to make up to 100 mhz 4. First, the lte network reference model is defined and its basic evolved packet system eps entities and the functions of each entity are described. 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. We present an overview of the eutran radio interface characteristics and 4g network architecture elements. Volte service description and implementation guidelines. The longterm evolution lte as defined by the 3rd generation partnership project 3gpp is a highly flexible radio interface 1, 2. Lte lteadvanced 4g carrieraggregation comp relay mimo a b s t r a c t thispaperprovidesanindepthviewonthetechnologiesbeingconsideredforlong termevolutionadvancedlteadvanced.