Architecture and key features of lteadvanced networks. Nsa network to be complemented and supported by lte network. The term lte is typically used to represent both lte and sae. Pdf 4g is new wireless technology developed by the third generation. 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. Barth all rightsreserved2006, alcatel 4 need for ps optimised system evolve umts towards packet only system need for higher data rates.
This document presents the lte network architecture as the first technical document of lte area. Lte tutorial tutorial on lte basics rf wireless world. Huawei e3372 lte usb stick product description issue 02 20150119 commercial in confidence page 3 of 22 about this document summary this document provides information about the major functions, supported services, system architecture, and technical references of hua wei e3372 lte usb stick hereinafter referred to as the e3372. The lte network called eps evolved packet system is an endtoend e2e all ip network. Download it once and read it on your kindle device, pc, phones or tablets. As shown in the figure lte sae system architecture evolution consists ue,enodeb and epcevolved packet core. Sae is the evolution of the gprs core network, with some differences. The remainder of this paper is organized as follows. Huawei huawei e3372 lte usb stick product description.
This white paper presents the results of the lte direct technical trial conducted jointly in bonn, germany, by. Building upon on the success of the first edition, lte for umts, second edition has been revised to now contain improved coverage of the release 8 lte details, including. Long term evolution lte is designed to deliver very fast data speeds faster than most home wired broadband services. In lte, information is organized as a function of frequency as well as time, using a resource grid. Access network eutran and long term evolution lte are used interchangeably. Lte provides a packet switched model at the sap, but retains a circuit switched model at the phy.
It addresses the performance attrib utes of the lte radio and system architecture and how the global lte ecosystem makes it possible for private organizations. The lte sae architecture and concepts have been designed for efficient support of massmarket usage of any ipbased service. System architecture evolution sae is the core network architecture of 3gpps lte wireless communication standard. Cdma systems are equipment with a protocol that allows the system to adjust in these situations. These travel as far as the physical channel processor in the receiver, but. There are few more components which have not been shown in the diagram to keep it simple. In the remainder of this paper, we mainly use the more common term lte. Radio protocols for lte and lte advanced pdf download. Long term evolution l te 3gpp work on the evolution of the 3g mobile system started in november 2004. Global system for mobile communication technology mobile device investigations program technical operations division. Some ch anges in t he dat base as well as int e hss protocol diameter w ill be necessary to enable hss for ltesae. Physicalcommunication32010217244 219 table 1 lte,lteadvanced,andimtadvancedperformancetargetsfordownlinkdlanduplinkul.
System architecture evolution wikimili, the best wikipedia. Basics of osi and tcpip layers pdf file function of router ofdm versus ofdma main difference remote radio head or rrh 11a physical layer inside. Utrautran long term evolution lte and 3gpp system architecture. Lte sae network architecture subsystems lte sae architecture is driven by the goal to optimize the system for packet data transfer. Gsm architecture and subsystems by standard the gsm network is. According to a japanese operator, 2020 will witness the coexistence of 5g and the ongoing. The architecture of evolved packet core epc has been illustrated below. Readers of this report that wish to remain current with our progress, or be considered for beta test prototype deployment, are encouraged to contact us at. Gsm technology global system for mobile communication or groupe special mobile. The physical layer itself maintains the continuous connection model, especially on the downlink, where there is continuous transmission. Multefire technology progress and benefits, and how it.
Access network eutran and long term evolution lte are used interchangeably in the sa working groups the term system architecture evolution sae was used to signify the broad framework for the architecture for some time the term ltesae was used to describe the new evolved system, but now this has become known as the evolved. From the editors of the highly successful wcdma for umts, this new book gives a complete and uptodate overview of long term evolution lte in a systematic and clear manner. This white paper will discuss why lte is now a highly attractive technology for private wireless networks across a wide range of enterprise verticals. Various interfaces are designed between these entities which include uu between ue and enodeb, x2 between two enodeb, s1 between epc and enodeb. These components are like the earthquake and tsunami warning system etws, the equipment identity register eir and policy control and charging rules function pcrf. It addresses the performance attributes of the lte radio and system architecture and how the global lte ecosystem makes it. Contrary to gsm and umts, lte is based on packet switching. No circuit switched components new approach in the interconnection between radio access network and core network imspdn epc eutran lteue. System architecture for 3gpp lte modem using a programmable. In addition, 5g nsa is expected to be less capitalintensive as compared to 5g sa architecture. There are only two nodes in the sae architecture user plane. Building on gsm and umts security newer security algorithms, longer keys. The design challenge to create a network architecture capable of supporting such flexibility whilst meeting differentiated access demands is a brave endeavor to satisfy. Mec deployments in 4g and evolution towards 5g 4 introduction multiaccess edge computing is regarded as a key technology to bring applicationoriented capabilities into the heart of a carriers network, in order to explore a wide range of new use cases, especially those.
Sae system architecture evolution is the corresponding evolution of the gprs3g packet core network evolution. The communication process is aggravated various infrastructural development to reach in this current level such as 3g and 4g communication system. The modern communication system is aimed to reach the real world one environment from virtual world via connecting resources of one with another through social network system. It is being said that the real business case of network slicing will come with the arrival of 5g, although in rel15 stage3 release in dec, 2017 still t. Pdf system architecture for 3gpp lte modem using a. Mar 01, 2012 this book focuses on lte with full updates including lte advanced to provide a complete picture of the lte system. This document provides a brief overview of the lte network architecture as the first technical document of lte area. The lte base stations are connected to the core network using the core networkran interface, s1. Architecture and key features of lte advanced networks. System architecture evolution national chengchi university. System architecture and networking san group capacity study for lte release emtc with coverage enhanced rach masters thesis shoaib h khan master of science in embedded systems computer science and engineering supervisors. The lte network architecture has been presented as the first document of the lte technical document series.
Impact on the overall network architecture including the core network is referred to as 3gpp system architecture evolution sae. Ltesae network architecture subsystems ltesae architecture is driven by the goal to optimize the system for packet data transfer. While the former will take time to develop, the latter offers limited 5g benefits confined to the improvement in some network kpis. Lte technology operating solely in unlicensed or shared spectrum wifilike deployment simplicity unlicensed spectrum, e. Interworking mission critical pushtotalk mcptt between. Ott solutions for voice services the proofofconcept design for operational rail voice services that we use to promote discussion is. Written by experts actively involved in the 3gpp standards and product development, lte for umts, second edition gives a complete and uptodate overview of long term evolution lte in a systematic and clear manner. Radio imt advanced based on lte release 10 and beyond. Then, we cover the concept and challenges of the four research categories that, according to 3gpp, constitute the pillars of the lte advanced system. With ltesae th ehss will g t additionally data per subscriber for sae mobility and service handling. Network slice is a concept within 3gpp ct and its history can be traced back to rr14 with the introduction of static slicing in lte networks. Lte has the advantage of being backwards compatible with existing gsm and 3g technologies, enabling mobile operators to deploy lte and.
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. Lte long term evolution mission critical push to talk group, is planned for march 2020 demonstration at the iwce 2020 exposition in las vegas. It includes radio access, devices and core network. Universal mobile telecommunications system umts lte architecture. To much noise will cause interference leading to degraded service or dropped calls. 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 characteristics, and system performance. The remaining system information messages are handled by dlsch, as if. Although most lte signaling messages are protected from modi. The ltesae architecture and concepts have been designed for efficient support of.
Jul 10, 20 this document provides a brief overview of the lte network architecture as the first technical document of lte area. This architecture is defined as part of the system architecture evolution sae effort. First, the lte network reference model is defined and its basic evolved packet system eps entities and the functions of each entity are described. Lte network architecture evolution ville eerola helsinki university of technology ville. Architecture for localarea private lte networks source. Simple protocol architecture shared channel based ps mode only with voip capability.
System architecture for 3gpp lte modem using a programmable baseband processor di wu, johan eilert and dake liu department of electrical engineering, link. Lte includes an fdd frequency division duplex mode of operation and a tdd. Lte system architecture evolution s1c base station to mme interface multihomed to multiple mme poolshomed to multiple mme pools sctpip based s11 mme to sae gw. We argue that dlte is a particularly good fit for rural areas, where the lte waveform is more appropriate than wifi, yet it is uneconomical for centralized providers to deploy traditional cellular systems.
In order to simplify protocol architecture, lte brings some major changes to the existing umts protocol concepts. 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. 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. T he hss can be ac essed y t e mme via s6a interface.
In addition to lte, 3gpp is also defining ipbased, flat network architecture. Also this paper tries to present the advantages why operators are. System architecture evolution last updated february 05, 2020. A baseline architecture for private lte is shown in figure 2. System architecture for 3gpp lte modem using a programmable baseband processor conference paper pdf available november 2009 with 3,546 reads how we measure reads. Long term evolution protocol overview nxp semiconductors. Article pdf available january 2012 with 11,724 reads. 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. In section 2, we provide an overview of the network architecture that will support the lte and lte advanced air interfaces. Long term evolution lte system architecture evolution sae adding mobility towards iwlan and non3gpp air interfaces. Access network eutran and long term evolution lte are used interchangeably in the sa working groups the term system architecture evolution sae was used to signify the broad framework for the architecture for some time the term lte sae was used to describe the new evolved system, but now this has become known as the evolved. It starts with an indepth explanation of the background and standardization process before moving on to examine the system architecture evolution sae. Feb 12, 2017 introduces the key elements of the lte and epc architecture.
Various interfaces are designed between these entities which include uu between ue and enodeb, x2 between two enodeb, s1. Umts long term evolution lte technology introduction. 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. Advanced targets are adopted system performance imtadvanced requirements and time plan rel. As such the system must monitor its noise floor or ambient noise. We are benchmarking our lte layer 2 implementation to determine the optimal mix and fit for qoriq architectures freescale and the freescale logo aretrademarksof freescale semiconductor, inc. Eindhoven university of technology master capacity study for. Lte and umb and then look into the details system architecture evolution the. Longterm evolution lte communication is based on an open medium. Voice over lte volte technology is widely recognised as the emerging standard for voice. Named as lte long term evolution, the 4g system architecture is made up of an epc.
This book focuses on lte with full updates including lte advanced release11 to provide a complete picture of the lte system. Cdma architecture cell breathing cdma is a noisegenerated technology. 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. We will also cover 5g deployment scenarios from the specs as well as some of the informative web resources. The lte system and epc adopt the alwayson concept whereby a bearer is established and an ip address is allocated to the mobile terminal when 5. No circuit switched components new approach in the interconnection between radio access network and core network imspdn epc eutran lte ue. 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. Rf performance and conformance is expected to be complete by june 2015.