A logical node controlling qos see8 and charging in user data transfers. Lte and epc test an overview of test concept and tools for trials. A concatenation of policy decision function pdf and charging rules function. It is stacked on packet data convergence protocol pdcp, radio link control and mac layers. Indeed, some operators have already started services with this latest technology. A usim stores userspecific data very similar to 3g sim card. The epc is a multiaccess core network based on the internet protocol ip. Simplified epc one mme and one sgw sgw and pgw in the same node no s5s8 interface focus on connected mode rrc connected, emm registered, ecm connected some important design choices nicola baldo the lena ns3 module 4. Evolved packet core epc is a framework for providing converged voice and data on a 4g longterm evolution lte network. The top layer of the control plan is called radio resource control rrc. Introduction to evolved packet core to cvtdallas online. Lteepc workshop lteepc technology essentials hussien mahmoud ps coreepc consultantfast track lteepc technology essentials fast track 2. Epc also fulfills the requirements for security, qos.
Consists of an evolved packet core epc and evolvedutran eutran. Lte is all ip based network and mainly designed for internetdata applications. Executive summary this paper provides a comprehensive overview of the network architecture of a long term evolution lte system according to the release 8 version of the specifications. Lte epc fundamental part 1 lte telecommunication high.
The epc is the latest evolution of the 3gpp core network architecture. Openairinterface 5g overview, installation, usage florian kaltenberger oai workshop, bupt, 27. With long term evolution lte comes a myriad of new and exciting attributes. Lte traffic generation and evolved packet core epc network. Lte provides downlink peak rates of at least 100mbits, 50 mbits in the. Feb 04, 2014 this presentation slides are intended to give detail introduction of lte epc network to the participants. Lte tutorial presentation lte presentation with audio narration. Audience this tutorial has been designed for audiences with a need to understand the lte technology basics in very simple terms. Introduction this workshop is a fast track course to cover the basic architecture and functionalities of the lteepc from the packet core perspective. Lte identifiers presentation lte signaling protocol define a large number of identifiers for ues, rabs and signaling endpoints.
Lte traffic generation and evolved packet core epc network planning by dima dababneh, b. Abstract lte technologies for unlicensed spectrum are gaining both attention and momentum within various regulatory bodies european cept, us fcc, standards groups 3gpp, etsi and industry fora wifi. Epc components serving gateway sgw, pdn gateway pgw mobility management entity mme, policy and charging control function pcrf 4. The epc consists of mme, sgw, pgw and pcrf functions for performing authentication, mobility management, bearer control, charging and qos control. This document is originally edited by justin ma and it is free to share to everyone who are interested. 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. Ofdm basics, lte channels, signaling procedures and mimo are covered. Ltesae architecture is driven by the goal to optimize the system for packet data transfer. Call flow is how signaling and sessions are created across an lte network.
The epc and sgsn support mobility management between the lte and 3g access systems, and. Lte uu is the point of reference for radio interface between eu and enodeb, encompasses control plane and user plane. Evolved packet core epc network equipment for long term. The 3gpp evolution for the 3g mobile system created the new base station system, called evolved umts terrestrial radio access network eutran and a new core network, called evolved packet core epc as a result of two standardisation projects. No circuit switched components new approach in the interconnection between radio access network and core network imspdn epc eutran lteue.
Where fragmented hybrid core networks can slow down 5g introductions, decrease agility and increase opex. The presentation covers the imsi, guti, gummei, imeisv, rnti, tai and apn. Lte and epc testan overview of test concepts and tools for trials 3 specific lte test areas overview creating an overall framework for the testing, evaluation, and optimization of lte and sae is a large and complex topic this document provides a starting point that covers the topic at a relatively high level. May 18, 2018 with an endgame defined by a dual mode core network for both 5g epc and 5g core. Lte qos lte architecture supports hard qos, with endtoend quality of service and guaranteed bit rate gbr for radio bearers. It resides out of the lte network and connected to pdn gateway through sgi interface. Jun, 20 this module provides an introduction into 4g lte. It is the most widely deployed 3gpp technology and its adoption has been the fastest compared to its predecessors 2g, 3g.
Evolved packet core epc network equipment for long term evolution lte toshiki hayashi long term evolutionevolved packet core lteepc is a system that will follow on from the 3g mobile system and mobile operators around the world are planning to use it. As the ims session is being set up, sip signaling containing media. Hence to support voice over lte there are two options. Lte evolved from an earlier 3gpp system known as the universal mobile telecommunication system umts, which in turn evolved from the global system for mobile communications gsm. Systems beyond imt2000 imtadvanced is set to introduce evolutionary path beyond 3g. The idea of ims is old, but after its deployment with lte users and operators can harness the true power of ims. Pdf the paper discusses the 3gpp evolved packet core epc as an implementation of a flat. Lte epc fundamental part 1 free download as powerpoint presentation. This tutorial emphasizes the impacts of ims over the eps access network. The evolved umts terrestrial radio access network eutran.
Ims ip multimedia subsystem is a standalone system. The lte network architecture strategic white paper 1 1. Access technology specific epc network selection procedures. This tutorial has been designed for audiences with a need to understand the lte technology basics in very simple terms. The goals for lte include improving spectral efficiency, lowering costs, improving services, making use of new spectrum and reformed spectrum opportunities, and better integration with other open standards. Introduction to evolved packet core epc and evolved packet system eps 2. Just as ethernet and the internet have different types of qos, for example, various levels of qos can be applied to lte traffic for different applications. Lte is a trade mark of etsi currently being registered. Umts evolved packet core epc network tutorialspoint. This volte tutorial covers volte voice over lte basics, types of volte which include volte using imsvoip and volte using csfbsrvcc. The goal of simulating this example is to simulate the lte x2 based handover, and to explore the performance evaluation of a longrunning tcp. The evolved packet core communicates with packet data networks in the outside world such as the internet, private corporate networks or. Sc a thesis submitted to the faculty of graduate and postdoctoral affairs in partial fulfillment of the requirements for the degree of master of applied science in electrical and computer engineering.
Long term evolution lte and system architecture evolution sae. In this tutorial, participant will be getting introductory knowledge of mobile internet core gprs network with lots of demonstrations and explanatory graphs of how internet works for mobile network and than with detail comparison of lte epc network. 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. The epc is a multiaccess core network based on the internet protocol ip that enables operators to deploy and operate one common packet core network for 3gpp radio access lte, 3g, and 2g, non3gpp radio access hrpd, wlan, and. The lte network called eps evolved packet system is an endtoend e2e all ip network. Evolved packet core epc is an all ip core network architecture through which lte and other 3gpp and non3gpp access networks connects. Mobile class targets 100 mbps with high mobility and nomadic local area class targets 1 gbpswith low. In fact, call flow and signaling is unique for lte, and is driven by 3gpp standards. Because the lte mac is fully scheduled, qos is a natural fit. The module discusses the benefits and drivers behind moving to 4g lte solution from a service provider and customer perspective. Enabling network programmability in lteepc architecture using openflow conference paper pdf available may 2014 with 1,350 reads how we measure reads. Lte architecture supports hard qos, with endtoend quality of service and guaranteed bit rate gbr for radio bearers. The evolved packet core communicates with packet data networks in the outside world such as the internet, private corporate. Policy and charging rules function pcrf in lte epc core.
Technical overview of 3gpp lte indian institute of. The pdf is the network entity where the policy decisions are made. Aug 09, 2018 evolved packet core epc is a framework for providing converged voice and data on a 4g longterm evolution lte network. Unleashing the potential of opensource in the 5g arena. This keeps information about the users phone number, home network identity and security keys etc. 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. Core network evolution from epc to 5g core made easy ericsson. The highlevel network architecture of lte is comprised of following three main components. Introduction to lteepc eps network with comparison with. Frequency division duplexing fdd and time division duplexing tdd both paired and unpaired. Evolved packet core epc in 4g lte networks by telcoma. Ericsson can simplify the core network evolution journey, from epc to 5g core. This tutorial will give you enough understanding on lte technology from where you can take yourself at higher level of expertise.
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