UMTS & 3G Articles Some useful articles, research and overviews on 3G and UMTS topics.
Palowireless Overview and Comparison of QoS Control in Next Generation Networks A variety of Next Generation Networks are currently being developed throughout the telecommunications industry, each with differing origins and designs. The unifying aim of these networks is to deliver an acceptable end-user experience. To achieve this a central QoS control point must be provisioned to link, control and thus ensure that the differing strands of communication required to deliver that user experience are handled appropriately. 3G: Digital Cellular Mobile Phone Systems This site provides a cellular tutorial with an overview of how cellular systems work, an explanation of cellular technology, and a guide to GSM as well as 3G/UMTS. It digs into the secrets behind cellular networks, as well as into the technological details making wireless communication in cellular systems efficient and cheap. You will also find book reviews pointing to the best books about cellular phones and specific subjects, an overview of where to buy a cellular phone, a mobile phone accessory, or a mobile phone plan / service. Cellular Tutorial Cellular Technology The radio interface, Speech signal encoding, Signalling, Architecture, Routing, Who's Who... 802.11 Planet 802.11 vs. 3G Once upon a time, you could hardly open a business magazine without finding a feature that praised 3G wireless telephony as the answer to mobile Internet needs. That was venture capital then. This is fiscally strapped now. In theory, 3G wireless networks are capable of throughput up to 384Kbps, which still puts them at the bottom end of 802.11b's range... Ericsson MMS success to drive 3G take-off (5/03) The success of MMS sets the stage for a 3G take-off by changing user behavior, moving people away from SMS and creating demand for Mobile Internet services. Once people are regularly using mobile multimedia services, there will be a natural rise in demand for the higher bandwidth offered by WCDMA systems such as video streaming and video telephony. NW Fusion Which way to wireless data? (12/01) There's a debate brewing among some wireless service providers on how best to migrate current infrastructures to support data-oriented 3G services. At the heart of the debate are two migration paths that seek to do the same thing: improve data rates from the current 14.4K bit/sec to 2M bit/sec and higher. The migration paths are the Code Division Multiple Access (CDMA) 1XRTT standard, which boosts data rates to 144K bit/sec, and the GSM upgrade called General Packet Radio Service (GPRS). GPRS, which is a time-division multiple access (TDMA) technology, can run at 171.2K bit/sec when all eight of its timeslots are used. TMCnet.com Decisions Confront Evolution To 3G Wireless (11/99) Third-generation or “3G” wireless systems, based on the global system for mobile communications (GSM) platform, comprise the next iteration of mobile communications services. With first-generation analog and second-generation (2G) digital systems established throughout much of the world, the growing demand for high-speed, data-intensive wireless services — such as Internet access and video conferencing — is now driving the development of 3G systems. Political And Market Pressures What Does "3g" Really Mean? Politics In Europe, Delays In The States Applications And User-Friendly Handsets vnunet.com UMTS - Get plugged into a wireless future (7/99) There are now 40 million fixed internet connections in Europe, butandwidth, but there are still some hurdles left to jump. over 200 million mobile phones. Even though both markets will continue to grow, the mobile one is expected to stay more than four times larger. You don't have to be a genius to realise that, in the future, mobile connections will be much more important than fixed ones. WAP Forum Where Does WAP fit in? WAP brings Internet content and advanced services to digital cellular phones and other wireless terminals. WAP is a global wireless protocol specification that works across the following wireless network technology types: GSM (900, 1800 & 1900MHz), PDC, CDMA (IS-95 and/or IS-707), US-TDMA (IS-136), iDEN (ESMR), DataTAC, Mobitex, CDPD, DECT, PHS, FLEX, and ReFLEX. Applications using WAP are scaleable across a variety of transport options and device types. A common standard offers potential economies of scale, encouraging cellular phone and other device manufacturers to invest in developing compatible products. With WAP, cellular and other wireless network carriers and content providers are able to develop new differentiated service offerings as a way to attract new subscribers, while consumers benefit from more and varied choices in mobile communications applications, advanced services and Internet access.