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Some useful articles, research and overviews on 3G and UMTS topics.
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| 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. |
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