Systems beyond imt2000 imtadvanced is set to introduce evolutionary path beyond 3g. The new radio network in umts is called utran umts terrestrial radio access network and is connected to the core network cn of gprs via iu interface. With the change from 2g to 3g, the emphasis for the systems changed from a focus on mobile voice communications to mobile data and general connectivity. Summary introduction to wireless lte 4g architecture and key. 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. Difference between gsm and umts difference between. It is assigned to a single user and contains all the functions needed to access umts services. Architecture and key features of lteadvanced networks. Nov 05, 2018 umts inherited its core from the gsm gprs architecture. Mobile station, network and switching subsystem nns, and the base station. The path to lte will include many improvements to network elements in existing mobile networks. What is gsm, edge, gprs, umts 3g, hsdpa, hsupa, lte 4g. Optimization of the methodology of configuration of mobile.
Sumit thakur uncategorized lte ppt power point presentation pdf. In order to simplify protocol architecture, lte brings some major changes to the existing. Keywords mobile network communication, gsm, umts and lte optimization of. Key words long term evolution, lte, umts, hspa, flat architecture 1. 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. Cdma subscriber identity module csim or reuseable identification. Kalle ikkela, marko myllynen, juha heinanen and olli martikainen. Umts tutorial covering umts releases, umts frequency bands,uarfcn, umts multiple access, umts frame structure and umts network architecture.
Gsm stands for global system for mobile evolution, developed based on 3gpp standards. In view of the different ways in which data may be carried, the umts core network may be split into two different areas. Gsm uses tdma and fdma for user and cell separation. What is gsm, edge, gprs, umts 3g, hsdpa, hsupa, lte 4g lte mall. Both the systems are used for cellular mobile communications.
The long term evolution standard lte is a wireless communications, highspeed data standard for mobile phones and data terminals. Spirent ims rchitecture the lte user equipment perspective 8. In the ran working groups term evolved umts terrestrial radio 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. In the ran working groups term evolved umts terrestrial radio 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. Mobile class targets 100 mbps with high mobility and nomadic local area class targets 1 gbpswith low. What is umts network architecture radio access radio interface frequency bands umts cdma modulation data channels umts tdd tdsdcdma handover. The msc then analyzes the national destination code of the phone number, which usually comprises the. The first band covers global system for mobile communication gsm, universal mobile telecommunication system umts, wirless local area network wlan and long term evaluation lte. The number of logical network nodes, however, has been reduced to streamline the overall architecture and reduce cost and latency in the network. Utran short for umts terrestrial radio access network is a collective term for the network and equipment that connects mobile handsets to the public telephone network or the internet. Umts is an umbrella term for the third generation radio technologies developed within 3gpp. The network architecture for gsm edge was basically the same as that used with gprs sgsn network entity. Gsm tutorial covering gsm basics, gsm network architecture, network elements, gsm system specifications, gsm frame structure, gsm physical layer or speech processing and network entry, refer basic gsm tutorial.
The general lte network architecture is similar to that of gsm and umts. Umts networks are often combined with gsm edge, the latter of which is also a part of imt2000. Voice communication was primary application, with data added recently. Umts long term evolution lte technology introduction. 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 umts architecture takes advantage of the existing gsm and gprs networks which serve as a core network in umts infrastructure. February, 28th 2005 overview in this document i make a study of third mobiles generation systems. Jul 18, 2017 in this video we discuss three topics. The essential distinctions between rolling out hspa compared to earlier umts. Rrc connection release with redirect between lte and gsmumts. Mobility and seamless handoff were requirements from the start, as was a requirement for. It based on the original 3g technologies having the ability to.
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. The universal mobile telecommunications system umts is a third generation mobile cellular system for networks based on the gsm standard. From this it can be seen that it is very similar to the more basic gsm network architecture, but with additional elements. This page on umts vs lte describes difference between umts and lte systems. Mobile network technologies gsmgprsumtslte youtube. In principle, the network is separated into a radio network part and a core network part. Global vs ltecdma vs lte, gsm or umts windows central. 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.
Universal mobile telecommunications system umts umts is regarded as a third generation 3g wireless communication system that acts as a successor to the second generation 2g communication technologies and is an evolved version of gsm gprs and edge poole, 2006. Its basis stands in the gsm edge and umts hspa network technologies, with changes in terms of an increased capacity and higher speed by simplifying the core network and using a different radio interface. Architecture and key features of lte advanced networks. Lte 4g network architecture lte core network mobile.
Umts subscriber identity module usim identity information used by a umts or lte network. 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. Umts system architecture and protocol architecture. It based on the original 3g technologies having the ability to reach the speed up to 100 mbits with a muchreduced latency. Lte fully abbreviated as longterm evolution is a technology involving firstgeneration 4g cellular networking. The mobile phone and subscriber identity module, the umts radio access network and, supporting voice with the.
In 3g, the most prevalent technology was umts with cdma2000 in close contention. The mobile equipment comprised of the following important modules. The first band covers global system for mobile communication gsm, universal mobile telecommunication system umts, wirless local area network wlan and long term evaluation lte, while the. The gsm architecture is made up of majorly three subsystems which include the.
Umts 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. Therefore, gprs term can be used to call the ps domain in both 2g and 3g networks. Gsm is typically based on tdma while umts is mainly cdmabased. The ue user equipment interface of the ran radio access network primarily consists of rrc radio resource control, pdcp packet data convergence protocol, rlc radio link control and mac media access control. Spirent ims rchitecture te lte use eipent pespetive 6.
The global system for mobile communications gsm which is a standard for 2g second generation cellular networks has created an avenue for the development of 3g third generation and 4g fourth generation cellular network standards such as universal mobile telecommunications system umts and long term evolution lte. The network architecture for gsm edge was basically the same as. The mobile phone and subscriber identity module, the umts radio access network and, supporting voice with the circuit switched core network. 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.
It also includes support for multitechnology network planning e. Lte is a standard for wireless data communications technology and an evolution of the gsm umts standard. The gateway msc or gmsc the purpose of which is to query the hlr and determine the location of the subscriber. To call b, the phone number of b is sent by a to the msc. Long term evolution protocol overview nxp semiconductors. Evolutionary analysis of gsm, umts and lte mobile network. Systemy komorkowe gsm, umts i lte zbigniew serwecinski 9112012 siec komorkowa siec komorkowa to sie c radiokomunikacyjna skladaja ca ca sie z wielu obszarow komorek, z ktorych ka zdy jest obslugiwany przez co najmniej jedno urza dzenie dzenie radiowe o stalej lokalizacji, czyli tzw. The iu is the utran interface between the radio network controller rnc and cn. This document presents the lte network architecture as the first technical document of lte area. Atoll supports gsm gprsedge, umts hspa, lte, cdma2000 1xrtt evdo, tdscdma, wimax and microwave links. Evolution types evolution contains not only technical evolution but also expansion to network architecture and services. This paper will concentrate also to describe the main functions of the most important network elements. It contains the base stations, which are called node bs and radio network controllers rncs which make up the umts radio access network. The radio access specifications provide for frequency division duplex fdd and time division duplex tdd variants, and several chip rates are provided for in the tdd option, allowing utra technology to operate in a wide range of bands and coexist with other radio access technologies.
Currently, gsm is still the most widely used technology today while umts is still in its infancy, slowly creeping forward. Outline of the lecture evolutions form gsm to umts. At first i will center the study in the objectives and main characteristic of this generation. The 3g umts core network architecture is a migration of that used for gsm with further elements overlaid to enable the additional functionality demanded by umts. 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. This communications network, commonly referred to as 3g for 3rd. The global system for mobile communications formerly groupe continue reading what is gsm, edge, gprs, umts 3g, hsdpa, hsupa, lte. Mar 26, 2012 the architecture of lte network and working principle lte is a standard for wireless data communications technology and an evolution of the gsm umts standard. A simplified view of the gsm edge network architecture can be seen in the diagram below. Gsm adjunct systems gsm standards define that certain adjunct or secondary systems work with gsm technology. Gsm network is consists of mobile station, base station subsystembts, bsc and networkmsc and operation subsystem.