List and identify umts elements in a plmn including utran and core network. Explain umts network architecture in detail with interface. Lte long term evolution is known as the evolution of radio access technology conducted by 3gpp. Full 3g fundamentals 3g architecture training course. The diagram shows both the cn and the utran, the mobile stations, the.
Introduction umts is developed by 3gpp 3 generation partnership project a joint venture of several organization 3g umts is a thirdgeneration 3g. Allip based network architecture higher bandwidth than 3g heterogeneous network 3gumts, wireless lan, dvbt, etc. The umts network architecture has three main entities. These technical elements influence the network coverage and system capacity of a umts network. Check out this video for the 2nd 15 mins with 5g session with imtiyaz ali. Umts architecture a umts network consist of three interacting domains. The mobile phone and subscriber identity module, the umts radio access network and, supporting voice with. The user equipment or ue is a major element of the overall 3g umts network architecture.
The greatest changes are related to the access part of the network. The other two 2g technologies, damps and is95 followed a different path and used cdma2000 for the 3g migration. At the end of the course you will understand wcdma based 3g umts network components like ue, node b, rnc, cs, ps, msc, sgsn, ggsn, pdn and interfaces, you will have clarity on the 3g architecture. 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.
As shown in the figure there are three main components in umts network architecture, user equipments is composed of mobile equipment me and usim. There are a number of layers of security implemented through a variety of security measures. Developed and maintained by the 3gpp 3rd generation partnership project, umts is a component of the international telecommunications union imt2000 standard set and compares with the cdma2000 standard set for networks based on the competing cdmaone. The access parts of the network, called the umts terrestrial radio access network utran, are based on atm and it is here that the major changes in upgrading will occur, which. It inherits the basic functional elements from the gsm. It is the interface between the network and the user. 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. An overview of the 3g network umts can in many aspects be looked upon as an extension to gsm and gprs. The umts architecture takes advantage of the existing gsm and gprs networks which serve as a core network in umts infrastructure. A umts system can be divided into a set of domains and the reference points that interconnect them. There are few more components which have not been shown in the diagram to keep it simple. Core network cn, umts terrestrial radio access network utran and user equipment ue.
This diagram represents the baselevel ultra secure network architecture. I am adding the architecture diagram of 2g, 3g, 4g for reference. Jul 18, 2017 in this video we discuss three topics. Summary introduction global system for mobile communication gsm anybody 500 million users may 2001 anywhere 168 countries may 2001 any media voice, messaging, data, multimedia gsm architecture gsm architecture sim subscriber. The release 99 core network contains the circuit switched domain and packet switched domain. Umts network architectur e cn and an entities and procedures 3gpp ts 23. The architecture of lte network and working principle lte is a standard for wireless data communications technology and an evolution of the gsmumts standard. Fig2 the umts interface diagram the umts interfaces as shown in fig. The lte network called eps evolved packet system is an endtoend e2e all ip network. Highlevel network diagram for gsm 2g and umts 3g you can also check out this video to get a quick overview of umts networks in less than 3 minutes. 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. Gsm network architecture elet 6302 motivation outline introduction and history.
The iu is the utran interface between the radio network controller rnc and cn. Wcdma network architecture wcdma including the ran radio access network and the cn core network. The ultrasecure network architecture ultrasecure webbased network architecture. General packet radio service gprs is a enhancement of gps, which is packet oriented mobile data service on the 2g and 3g cellular communication system. The core network is then the overall entity that interfaces to external networks including the public phone network and other cellular telecommunications networks. This tutorial on umts covers network architecture in umts system. Developed and maintained by the 3gpp 3rd generation partnership project, umts is a component of the international telecommunications union imt2000 standard set and compares with the cdma2000 standard set for networks based on the competing. The architecture of evolved umts terrestrial radio access network eutran has been illustrated below. The evolved packet core communicates with packet data networks in the outside world such as the internet, private corporate networks or. It provide connection to the external packet data network through the gsm infrastructure with short. The eutran handles the radio communications between the mobile and the evolved packet core and just has one component, the evolved base stations, called enodeb or enb. Architecture of the umts radio network subsystem, rns utran rns interfaces. Ue may be a smartphone, tablet or other communication devices. This diagram shows that the wcdma system is composed of 3 key parts.
Draw neat block diagram for umts network architecture. This keeps information about the users phone number, home network identity and security keys etc. Umts architecture section objectives upon completion of this section, the participant should be able to. Umts architecture umts system uses the same core network as the gprs and uses entirely new radio interface. Below is umts qos architecture diagram showing how umts tries to achieve endtoend service. It provide connection to the external packet data network through the gsm infrastructure with short access time to the network for independent short packets. Utran umts terrestrial radio access network handles all. Umts network architecture ran corenetwork ue umts tutorial. Telecommunications network and service architectures. 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. The evolved umts terrestrial radio access network eutran. Wideband code division multiple access wcdma definition. A simplified umts network architecture download scientific. The access network, called umts terrestial radio network utran, consists of base stations and base stations controllers.
Gprs2g umts3g lte4g architecture diagram i am adding the architecture diagram of 2g, 3g, 4g for reference. The highlevel network architecture of lte is comprised of following three main components. It is important to remember that this architecture will not provide absolute protection of your information, but it does limit the likelihood of information being obtained. It specifies a complete network system and the technology described in it is popularly referred as freedom of mobile multimedia access foma. In the case of umts, the communication over the air interface, or umts terrestrial radio access utra as it is technically known, is achieved using wcdma and tdcdma. The following architecture diagram shows epc, ims and the interface between them. The umts network was based on that used for 2g, although major changes were seen to some terminology and to the radio access network. Security architecture in umts third generation cellular networks. Umts network architectur e cn and an entities and procedures. Universal mobile telecommunication system umts presented by m mateen shahid 2. Summary introduction global system for mobile communication gsm anybody 500 million users may 2001 anywhere 168 countries may 2001 any media voice, messaging, data, multimedia gsm architecture gsm architecture sim subscriber identity. 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. 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 universal mobile telecommunications system umts is a third generation mobile cellular system for networks based on the gsm standard. Lte network architecture the highlevel network architecture of lte is. The umts standards are structured in a way that the internal functionality of the different network elements is not defined. User equipment ue ue is a mobile terminal authorized to be used in an lte network.
Umts system architecture ue user equipment that interfaces with the user utran umts terrestrial radio access network handles all radio related functionality wcdma is radio interface standard here. Geran gsm and edge radio access network ps core as in rel. The ran is used to process all the radiorelated functions, while the cn is used to process all voice calls and data connections within the umts system, and implements the function of external network switching and routing. The lcs architecture in utran follows a clientserver model with the positioning functionality distributed across umts nodes such as, radio network controller rnc, stand alone serving mobile location centre smlc, mobile serving centre msc, home location register hlr, and gateway mobile location centre gmlc. Umts also has improved network security and location based services. Critical coverage and capacity topics such as signaling channel power needs, multiple services, erlangb capacity, and load equations are first introduced separately as they relate to.
The additional services of gsm are the most of the time vocal services and are first normally in being accessible by an operator of the network after provision of the basic service of gsm. Diagram showing how the softswitch forms part of the network. Diagram showing the architecture of the huawei softswitch. Umts network architecture and elements mobile station highlevel functions umts domains and strata umts gprs protocol architecture references. Nov 20, 2015 at the end of the course you will understand wcdma based 3g umts network components like ue, node b, rnc, cs, ps, msc, sgsn, ggsn, pdn and interfaces, you will have clarity on the 3g architecture. Instead, the interfaces between the network elements is defined and in this way, so too is the element functionality. Sep, 2019 highlevel network diagram for gsm 2g and umts 3g you can also check out this video to get a quick overview of umts networks in less than 3 minutes. Gl announces simulation of location based services in umts.
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. Lte network architecture in lte tutorial 05 may 2020. Wideband code division multiple access wcdma definition and. Contains heavily revised sections on the evolution from gsm to umts multiaccess, the umts radio access network, the umts core network and services. Includes updated versions on services in the umts environment, security in the umts environment and umts protocols. Gprs architecture mobile communication notes explaining. Utran circuit switched cs core network umts terrestrial radio access network pstn msc server gmsc server sgw sgw 3gpp rel.
In next article, we will have a look at rel 5 architecture. 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 4g network architecture lte core network mobile. An analytical model based on gm1 with selfsimilar input to provide.
The main function of the core network is to provide switching, routing and transit for user traffic. Umts by sanchez and thioune, and wcdma for umts by holma and toskala. Lte network architecture in lte tutorial 05 may 2020 learn. The ue is divided into 2 parts, the mobile equipment me and the umts subscriber identity module usim card.
Mar 30, 2018 now we will see what is the major changes in 3g umts network for this you should know that whole network is divided into two parts one is utran and second is core network as shown in above architecture you should remember that in 3g umts whatever changes made is in ran part only there is no major changes in core network and no any hardware added in core network only hardware and software is. Containing revised, updated and brand new material, it provides a comprehensive view on the umts network architecture and its latest developments. This document presents the lte network architecture as the first technical document of lte area. With the evolution towards ipbased network, the circuit switched network is migrating towards a new architecture called next generation network ngn which emulates the behavior of circuit switching. Lte network architecture webinar aircom international strongly recommended you can extend the let sae as follows to interface with other technology. It is assigned to a single user and contains all the functions needed to access umts services. We will also cover 5g deployment scenarios from the specs as well as some of the informative web resources. Dec 05, 2011 in the case of umts, the communication over the air interface, or umts terrestrial radio access utra as it is technically known, is achieved using wcdma and tdcdma. A usim stores userspecific data very similar to 3g sim card.
Figure 4 depicts the architecture of a umts network, according to release 99. The universal mobile telecommunications system umts, based on the gsm standards, is a mobile cellular system of third generation that is maintained by 3gpp 3rd generation partnership project. The complicated diagram you would find from other source is just a combination of lte network and other networks like umts, gsm etc. Building on the success of the first edition, umts networks, second edition allows readers to continue their journey through umts up to the latest 3gpp standardization phase, release 5. Download scientific diagram a simplified umts network architecture from publication. Critical coverage and capacity topics such as signaling channel power needs, multiple services, erlangb capacity, and load equations are first introduced separately as they relate to the initial topology planning phase. Cn core network is responsible for transport functions such as switching and routing calls and data, tracking users usim me.
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