This tutorial is prepared for beginners to help them understand the basictoadvanced. February, 28th 2005 overview in this document i make a study of third mobiles generation systems. Overview of umtswcdma technology 4 3g frequency allocation umts frequencies. Also, know about frequency bands used in 3g networks. Summarizes and surveys current lte technical specifications and implementation options for engineers and newly qualified support staff. Holma coedited the book wcdma for umts and completed his phd on umts performance at helsinki university of technology antti toskala also joined nokia in 1994, and is currently senior standardisation manager with system. The greatest changes are related to the access part of the network. This list does not aim to cover all networks, but instead focuses on networks deployed on frequencies other than 2100 mhz which is commonly deployed around the globe and on multiband deployments. Comparing with tdmafdma technologies, such as gsm, the coverage of a wcdma network cannot be planned independently of the load on. Umts wcdma technology in umts tutorial 05 may 2020 learn. Mobile 3g evolved into two competing standards both based on cdma cdma2000 uses 1. Umtsgprs system overview from an ip addressing perspective.
What is wideband code division multiple access wcdma. Comprehensive coverage of umts 3g news, licensing, business developments, 3g wcdma telecommunication technology, multi media mobile phones and future communications. Wideband code division multiple access, along with umts fdd, utrafdd, or imt2000 cdma direct spread is an air interface standard found in 3g mobile telecommunications networks. What is 4g 4g 5 offers a downloading speed of 100mbps. Cdma, code division multiple access an implementation of direct sequence spread spectrum, dsss, and was used almost universally for 3g mobile communications standards as it provided an excellent format as a multiple access scheme. What is the difference between umts, 3g, and wcdma. Umts standard is generally preferred by countries that use gsm network. The main radio technology employed in umts is wcdma.
Test measurement challenges and field environment test planning school of electrical engineering master. This process is a manual process and it was done in. Harri holma is principal engineer at nokia networks, with special focus on umts hsdpa performance. Study these interview mcq questions and answers on 3g umts wcdma network architecture and interfaces. Umts is essentially the 3g upgrade path to gsm, and it uses 5 mhz channels in place of the narrowband but still digital approach used in gsm. Beming, network planning oriented radio network planning and optimisation for umts j. Techopedia explains wideband code division multiple access wcdma the wcdma system is part of the umts. Services umts most of 3g licenses in europe required operator to deploy a umts system covering x% of population by a specific date y germany. Outline zhistory and evolution of mobile radio brief history of cellular wireless telephony radio technology today. Umts long term evolution lte technology introduction. By 2015, umts hspa and lte 3g technologies are expected to account for 3. The following is a list of mobile telecommunications networks using thirdgeneration universal mobile telecommunications system umts technology.
Your help was very important to me, not only in the technical side but also with the support in. Umts works on wcdma, cdma2000 and tdscdma implementations by 3gpp. Umts network composed of three main parts ue user equipment,radio access network ran and core network. The successful trial, deployment, operation and troubleshooting of 3g or umts infrastructures and applications is the. A study on third generation mobile technology 3g and. Easily clear job interviews and college exams after studying these multiple choice. On the contrary, the definition of cn is adopted from gsm.
This tutorial on umts covers network architecture in umts system. 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. Umts tutorial for beginners learn umts online training. As you may know, more spectrum is the best way to improve both overall network capacity and data throughput, two key goals of 3g. Comparative study of 3g and 4g in mobile technology. Umts stands for universal mobile telecommunications system, developed based on 3gpp standards.
Umts etsi proposed gsmnatdma gprs evolution under name universal mobile telecom. It is developed by the 3g partnership program, which is composed of evolved core cellular networks that belong to the global system for mobile gsm communications networks worldwide. Umts network architecture cn and an entities and procedures. This is based on a set of standards used for mobile devices and mobile telecommunications use services and networks that comply with the international mobile telecommunications2000 imt2000 specifications by. Concentrating on three mobile communication technologies, gsm, 3g wcdma, and ltewhile majorly focusing on radio access network ran technology this book describes principles of mobile radio technologies that are used in mobile phones and service. Umts uses wideband cdma wcdma as the radio transmission standard. Various technologies fall under umts based on different releases from 3gpp community.
From a specification and standardization point of view, both ue and utran consist of completely new protocols, the designs of which are based on the needs of the new wcdma radio technology. Umts system architecture and protocol architecture tu ilmenau. Radio access network architecture wcdma for umts wiley. Umts network architectur e cn and an entities and procedures 3gpp ts 23.
Wcdmahspa basics for umts disclaimer trainer and company. This completely revised and updated edition of the highly successful umts signaling provides a deep insight into all aspects of umts signalling. The umts world is an 3g mobile system news and information provider. The high data speeds, measured in mbps, enable full motion video, highspeed internet access and videoconferencing. This communications network, commonly referred to as 3g for 3rd generation wireless mobile communication technology, can carry many traffic. Umts network is called a third generation network 3g. It is based on the gsm standards, which is a third generation mobile cellular system originally has given birth from the etsieuropean. Toskala 3g evolution hspa and lte for mobile broadband e. You must know wcdma which stands for wide band code division multiple access. Wcdma 3g 3g wireless service has been designed to provide high data speeds, alwayson data access, and greater voice capacity.
List of standards for release 3, 4 and 5, respectively 3gpp tr 21. This fact, coupled with the desire to operate these systems in concert with a diversity of systems employing other signaling formats seriously complicates the design process. Umts is an umbrella term for the third generation radio technologies developed within 3gpp. The wcdma technology in japan was very similar to that being considered in. The access network, called umts terrestial radio network utran, consists of base stations and base stations controllers. The proposed 3g wideband cdma systems are complex in nature.
Umts capacity simulation study andres felipe cosme hurtado. Wcdma is the most common radio interface for umts systems including. Europe, japan, and asia have agreed upon a 3g standard called the universal mobile telecommunications system umts, which is wcdma operating at 2. An overview of the 3g network umts can in many aspects be looked upon as an extension to gsm and gprs. Umts tutorial pdf version quick guide resources job search discussion 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. Universal mobile telecommunications system umts is a 3g cellular. Handover between lte and 3g radio access technologies. The umtswcdma part of the system to study includes the radio. Umts is designed to cope with the growing demand of mobile and internet applications with required quality of service parameters. In umts systems different handover types have been introduced to cope also with other requirements as load control, coverage provisioning and offering quality of services. This tutorial contains some of the basics of 3g technology and network.
Umts gprs system overview from an ip addressing perspective. Wcdma was chosen as 3g technology in late 1997early 1998 by many forums like. Tdma, cdma demographics and market trends today 3g vision, 3g migration paths zevolving network architectures based on gsmmap or on is41 today 3gpp versus 3gpp2 evolution paths 3g utilization of softswitches, voip and sip. Spreading principle user information bits are spread into a number of chips by multiplying them with a spreading code the chip rate for the system is 3. As shown in the figure there are three main components in umts network architecture, user equipments is composed of mobile equipment me and usim. It is a third generation network developed by ntt docomo and from 2g network cdma. Telcom 2720 12 evolution path to 3g gsm 2g systems gprs umts wcdma edge 2. Summarizing, the capacity of a 3g cell is described not by a single number. Wcdma wide band code division multiple access umts before we talk about 4g or gsm.
Using this bandwidth it has the capacity to carry over 100 simultaneous voice calls, or it is able to carry data at speeds up to 2 mbps in its original format. Hsdpahudpa currently looking at a new architecture with a new radio interface 3gpp does complete system specifications the whole system from radio interface to management and charging. Umts standard is generally used by those countries that prefer gsm network. The universal mobile telecommunications system umts, is emerging fast due to internet and also increased requirement of workforce. 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. Handover aims to provide continuity of mobile services to a user traveling over cell boundaries in a cellular infrastructure.
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