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Topic: Universal Mobile Telecommunications System


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3G
4G

  
  UMTS: Universal Mobile Telecommunications Systems
Current wireless or mobile systems, despite their evolution, are still constrained in terms of the data rate they can offer and their flexibility to manipulate complex, yet user-friendly multimedia services.
The system seeks to build on and extend the capability of today’s mobile, cordless, and satellite technologies by providing increased capacity and data capability as well as a far greater range of services using an innovative radio access scheme and an enhanced, evolving core network (Struthers, 1998).
The system will be a member of a new family of mobile telecommunications systems being developed by the ITU for deployment across the world.
misnt.indstate.edu /harper/UMTS.html   (4683 words)

  
  Universal Mobile Telecommunications System - Wikipedia, the free encyclopedia
Universal Mobile Telecommunications System (UMTS) is one of the third-generation (3G) mobile phone technologies.
In Singapore, Singapore Telecommunications started their trial during December 2004 and it was successfully launched during March 2005 followed by StarHub and MobileOne.
UMTS and other W-CDMA systems are widely criticized for their large spectrum usage, which has delayed deployment in countries that have not allocated new frequencies specifically for UMTS (such as the United States).
en.wikipedia.org /wiki/Universal_Mobile_Telecommunications_System   (2534 words)

  
 CommsDesign - Universal Mobile Telecommunication System (UMTS): Implementation and Issues
The history of mobile wireless communications can be broadly divided into the different generations of technological advances and their consequent implementations.
Mobile satellite systems are touted as the ultimate solution to the problem of covering large areas economically, and serving widely scattered or remote rural customers in both developing and developed countries.
The final aim of mobile broadband-communications systems is catering the different mobility requirements ranging from stationary (for wireless local loops) to quasi-stationary (outdoors, office, and industrial environments).
www.commsdesign.com /showArticle.jhtml?articleID=192200451   (2196 words)

  
 Siemens AG - UMTS (Universal Mobile Telecommunications System)
Mobile phone users will soon be able to surf the Internet, take part in videoconferences or download music files.
It's all done with UMTS (Universal Mobile Telecommunications System), the new standard due to be introduced in 2002.
At the Mobile Radio Center in Ulm, Germany, Siemens engineers are already working on the third mobile-radio generation.
www.siemens.com /page/1,3771,249246-1-999_0_0-0,00.html   (93 words)

  
 [No title]   (Site not responding. Last check: 2007-10-08)
The mobile station 100 may be a handheld radiotelephone, such as a cellular telephone or a personal communicator.
For example, the mobile station 10 could be contained within a PCMCIA or similar type of card or module that is installed during use within a portable data processor, such as a laptop or notebook computer, or even a computer that is wearable by the user.
The mobile station 100 also contains a wireless section that includes a digital signal processor (DSP) 180, or equivalent high speed processor or logic, as well as a wireless transceiver that includes a transmitter 200 and a receiver 220, both of which are coupled to an antenna 240 for communication with the network operator.
www.wipo.int /cgi-pct/guest/getbykey5?KEY=03/84095.031009&ELEMENT_SET=DECL   (4044 words)

  
 [No title]   (Site not responding. Last check: 2007-10-08)
A mobile station or a packet data device connected to the mobile station, which is the end point of the data connection, is reachable through one base station controller and the GSN connected to this base station controller is called Serving GPRS support node (SGSN) (402).
The system of claim 7,8 or 9, wherein the system is an Universal Mobile Telephony System (UMTS).
The system of any one of the claims 7-10, wherein the system part of the network providing transport of user data is arranged to forward the information about the abnormal condition to the element controlling the connection in response of a query from said controlling element.
www.wipo.int /cgi-pct/guest/getbykey5?KEY=03/103231.031211&ELEMENT_SET=DECL   (4189 words)

  
 TechOnLine - Universal Mobile Telecommunication System (UMTS)—Implementation and Issues
The history of mobile wireless communications can be broadly divided into the different generations of technological advances and their consequent implementations.
Mobile satellite systems are touted as the ultimate solution to the problem of covering large areas economically, and serving widely scattered or remote rural customers in both developing and developed countries.
The final aim of mobile broadband-communications systems is catering the different mobility requirements ranging from stationary (for wireless local loops) to quasi-stationary (outdoors, office, and industrial environments).
www.techonline.com /community/related_content/21103   (2151 words)

  
 PRESS RELEASE Infineon Makes UMTS Phones Usable Worldwide   (Site not responding. Last check: 2007-10-08)
But "universal" does not automatically mean that a UMTS handset will also work anywhere in the world.
To make next-generation mobile phones "universal" in the truest sense of the word, Infineon Technologies AG (FSE: IFX) (NYSE: IFX) recently introduced a new chip which accommodates the transmit and receive electronics for all six frequency bands in a footprint measuring only 5mm on 5mm.
Mobile radio devices include a radio-frequency transceiver which is responsible for transmitting and receiving the signals.
www.marketwire.com /mw/release_html_b1?release_id=88745   (476 words)

  
 UMTS Articles Universal Mobile Telecommunications   (Site not responding. Last check: 2007-10-08)
Universal Mobile Telecommunications System (UMTS) is one of the third-generation (3G) mobile phone technologies.
It uses W-CDMA as the underlying standard, is standardized by the 3GPP, and is the European/Japanese answer to the ITU IMT-2000 requirements for 3G Cellular radio systems.
The O2 mobile network lately commenced a 3G or UMTS carrier network which operates in a different area of electromagnetic spectrum around 2100MHZ.O2’s turnover for the March 2005 was £ 6.683 billion.
www.amazines.com /UMTS_related.html   (1981 words)

  
 MobileStrong.com » Blog Archive » Universal Mobile Telecommunications System   (Site not responding. Last check: 2007-10-08)
Precursors to 3G are 2G mobile telephony systems, such as GSM, IS-95, PDC, PHS and other 2G technologies deployed in different countries.
UMTS supports mobile videoconferencing, although experience in Japan and elsewhere has shown that user demand for Video calls is not very high.
UMTS and other W-CDMA systems are widely criticized for their large spectrum usage, which has delayed deployment in countries that acted relatively slowly in allocating new frequencies specifically for 3G services (such as the United States).
www.mobilestrong.com /?p=22   (3064 words)

  
 Publisher description for Library of Congress control number 2002193374   (Site not responding. Last check: 2007-10-08)
UMTS (Universal Mobile Telecommunication System) is the third generation telecommunications system based on WCDMA.
UMTS (Universal Mobile Telecommunication System) will offer a consistent set of services to mobile computer and phone users no matter where they are located in the world.
Based on the GSM (Global System for Mobile communication) communication standard, UMTS, endorsed by major standards bodies and manufacturers, is the planned standard for mobile users around the world by 2002.
www.loc.gov /catdir/description/wiley037/2002193374.html   (307 words)

  
 UMTS Overview, Resources/Tutorials
Universal Mobile Telecommunications System (UMTS) is the European standard for 3G mobile communication systems which provide an enhanced range of multimedia services.
UMTS and other W-CDMA systems are widely criticized for their large spectrum usage, which has delayed deployment in countries that have not allocated new frequencies specifically for UMTS (such as the United States).
They manage the bearer channels between the mobile terminals and the fixed network including the handovers.
www.telecomspace.com /3g-umts.html   (421 words)

  
 Evolution of Mobile Telecommunications Toward U
In Europe, the European Telecommunications Standards Institute (ETSI) is looking for the definition of a Universal Mobile Telecommunications System (UMTS); parallel standardization activities on a worldwide level are undertaken within the International Telecommunications Union (ITU) under the banner of Future Public Land Mobile Telecommunication System (FPLMTS)/International Mobile Telecommunications in the Year 2000 (IMT-2000).
This means that the evolution of existing (mobile) communications systems toward UMTS requires the early integration of IN and B-ISDN principles as well as the evolution of the current radio interfaces toward the target UMTS radio interface.
The previous section indicated that the evolution from any existing telecommunications system toward UMTS requires a big investment and that only a partial set of the target UMTS capabilities could be provided in the short to medium term.
www.comsoc.org /~ci/private/1996/sept/magedanz.html   (5055 words)

  
 Developing UMTS Mobility Procedures over DECT and ATM Technologies   (Site not responding. Last check: 2007-10-08)
Third generation mobile telecommunications systems aim at providing end-users, apart from terminal and personal mobility, with enhanced services.
Compared to second generation systems, enhancements that will cover features all the way between the end-user and the core network elements are required, i.e., from mobile terminals to radio access and fixed network.
Universal Mobile Telecommunications System (UMTS) is a third generation system which assumes a B-ISDN core network.
www.telecom.ece.ntua.gr /~libero/NARA1.html   (377 words)

  
 UMTS Technical Details
UMTS is above 2G mobile systems for its potential to support 2Mbit/s data rates from the outset.
UMTS is conceived as a global system, comprising both terrestrial and satellite components.
In practical implementations, UMTS terminals might be unable to operate at the highest data rates at all times, and in remote or heavily congested areas system services might only support lower rates due to radio propagation constraints or economic reasons.
www.cellular.co.za /umts_technical.htm   (580 words)

  
 - Welcome to Hongfei Du's Home Page -
It uses W-CDMA as the underlying standard, is standardized by the 3GPP, and is the European answer to the ITU IMT-2000 requirements for 3G Cellular radio systems.
Vodafone Mobile Connect USB Modem brings UMTS and HSDPA also to UMPC and other mini PC computers.
Mobile Satellite Ventures Awarded 2 New ATC Patents...
www.ee.surrey.ac.uk /Personal/H.Du/UMTS.html   (213 words)

  
 Techniques for performing UMTS (universal mobile telecommunications system) authentication using SIP (session ...
More particularly, the present invention relates to techniques for performing UMTS (Universal Mobile Telecommunications System) authentication using SIP messages.
The SIP has been selected as the protocol over the UNI (User to Network Interface), that is, the interface between the mobile subscriber and the CSCF (Call State Control Function), for R00 (release 2000) and the current UMTS AKA (Authentication and Key Agreement) is one proposal for the authentication mechanism for the R00 UMTS.
Furthermore, in the IP Multimedia (IM) subsystem, which supports mobile IP telephony, a subscriber authentication mechanism must be standardized.
www.freepatentsonline.com /7024688.html   (3307 words)

  
 Wireless Glossary: Universal Mobile Telecommunications System (UMTS)
Scroll through the terms in the left to find a technology.
The 3G mobile telephone standard in Europe, standardized by ETSI.
It supports a theoretical data throughput of up to 2 Mbps.
www.devx.com /wireless/Door/11456   (50 words)

  
 Motorola Premiers Live Demo of Universal Mobile Telecommunications System (UMTS) Applications in China
This was Motorola's first high-speed audio and data call through a live, completely integrated end-to-end UMTS system in China.
The demonstrations, made over a UMTS system with seamless connections between wireless and data networks in several locations, showed some practical uses for mobile phones using today's emerging 3G technologies.
Mobile Services Café is designed to bring customized communication, lifestyle, entertainment and rich mobile business opportunities to the consumers.
www.motorola.com.cn /en/news/2002/04/0410_01.asp   (484 words)

  
 ILOG Connection: Backing New Mobile Standard
ILOG is among the key members of the Mobile Common Configuration Management (MCCM) Catalyst Showcase, the TeleManagement Forum project to develop a system for seamlessly switching mobile telephony between the emerging third-generation Universal Mobile Telecommunications System (UMTS) and the second-generation Global System for Mobiles (GSM).
UMTS is a broadband system for the packet-based transmission of text and digitized audio, video and multimedia at data rates as high, or higher, than 2 megabits per second.
Already endorsed by major standards bodies, communications equipment suppliers and mobile network operators, UMTS is set to be the standard for mobile users worldwide by the year 2002.
www.ilog.com /corporate/connection/spring_2001   (625 words)

  
 UMTS: Universal Mobile Telecommunications System
Universal Mobile Telecommunications System (UMTS) is a key 3G mobile technology identified by the ITU.
Using fresh radio spectrum to support increased numbers of customers in line with industry forecasts of demand for data services over the next decade and beyond, "UMTS" is synonymous with a choice of WCDMA radio access technology that has already been selected by approaching 120 licensees worldwide.
UMTS system uses the same core network as the GPRS and uses entirely new radio interface.
www.networkdictionary.com /wireless/umts.php   (256 words)

  
 Define UMTS - Universal Mobile Telecommunications System
Analog systems are considered first generation and digital systems like GSM are second generation.
UMTS mobile phones can function in GSM networks as well as UMTS networks, so a reception can be guaranteed in regions where UMTS is not yet available.
UMTS uses a procedure for wireless data transfer between mobile phone and base stations which is interference tolerant and makes the best use of available transmission bandwidth.
www.birds-eye.net /definition/u/umts-universal_mobile_telecommunications_system.shtml   (555 words)

  
 Aricent GPRS and UMTS stacks and solutions for faster time to market
General Packet Radio Services or GPRS, is the mobile networking industry's answer to enabling pervasive mobile data networking and mobile commerce.
GPRS is a technology that is the bridge between the current GSM-based mobile networks and the next generation UMTS - based mobile networks.
With data rates upto 2MBPS, UMTS seeks to build on and extend the capability of today's mobile, wireless and satellite technologies by providing increased capacity, data capability and far greater range of services using an innovative radio access scheme and an enhanced, evolving core network.
www.hssworld.com /mobile/index.html   (617 words)

  
 IEC
The first systems offering mobile telephone service (car phone) were introduced in the late 1940s in the United States and in the early 1950s in Europe.
The introduction of cellular systems in the late 1970s and early 1980s represented a quantum leap in mobile communication (especially in capacity and mobility).
As previously mentioned, IMT stands for International Mobile Telecommunications, and “2000” represents both the scheduled year for initial trial systems and the frequency range of 2000 MHz (WARC’92: 1885—2025 MHz and 2110—2200 MHz).
www.iec.org /online/tutorials/umts/topic01.html   (1086 words)

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