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A radio communications technology that will create a "bit
pipe" for providing mobile access to internet-based services.
It will enhance and extend mobility in many areas of our lives.
In the near future, mobility won't be an add-on: it will become a
fundamental aspect of many services. We'll expect high-speed access
to the internet, entertainment, information and electronic commerce
(e-commerce) services wherever we are - not just at our desktop
computers, home PCs or television sets.
3G services will add an invaluable mobile dimension to services
that are already becoming an integral part of modern business life:
Internet and Intranet access, video-conferencing, and interactive
application sharing.
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2G Wireless
The technology of most current
digital mobile phones
Features includes:
- Phone calls
- Voice mail
- Receive simple email messages
Speed: 10kb/sec
Time to download a 3min MP3 song:
31-41 min
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2.5G Wireless
The best technology now widely
available
Features includes:
- Phone calls/fax
- Voice mail
-Send/receive large email messages
- Web browsings
- Navigation/maps
- New updates
Speed: 64-144kb/sec
Time to download a 3min MP3 song:
6-9min
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3G Wireless
Combines a mobile phone, laptop PC
and TV
Features includes:
- Phone calls/fax
- Global roaming
- Send/receive large email messages
- High-speed Web
Navigation/maps
Videoconferencing
- TV streaming
- Electronic agenda meeting reminder.
Speed: 144kb/sec-2mb/sec
Time to download a 3min MP3 song:
11sec-1.5min
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We are not just talking about "road warriors" who spend
their entire lives travelling. It's more a question of supporting
new, flexible working practices where employees need access to a
wide range of information and services via their corporate
intranets, whether they are at their own desk or anywhere else.
Employees who spend some of their working at home. Accountants
that carry out audits at client premises. On-site maintenance
engineers who need access to detailed instruction manuals, mobile
emergency services who need a video link with a hospital or doctor
for specialised advice. These are a few situations where 3G will
play a valuable role.
| Key features of 3G systems are a high degree
of commonality of design worldwide, compatibility of
services, use of small pocket terminals with worldwide
roaming capability, Internet and other multimedia
applications, and a wide range of services and terminals. |
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3G System Capabilities
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Capability to support circuit and
packet data at high bit rates:
• 144 kilobits/second or
higher in high mobility (vehicular) traffic
• 384 kilobits/second for pedestrian traffic
• 2 Megabits/second or higher for indoor traffic
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| Interoperability and
roaming |
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Common billing/user profiles:
• Sharing of usage/rate
information between service providers
• Standardized call detail recording
• Standardized user profiles
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| Capability to determine
geographic position of mobiles and report it to both the
network and the mobile terminal |
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Support of multimedia
services/capabilities:
• Fixed and variable rate bit
traffic Bandwidth on demand
• Asymmetric data rates in the forward and reverse
links
• Multimedia mail store and forward
• Broadband access up to 2 Megabits/second
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We're likely to see 3G services enter our day -to-day lives in
all sorts of new ways: for example, in shopping, especially Internet
"mail order" (e-commerce), banking, or playing interactive
computer games over the Net.
We'll think nothing of sitting on a train and using a mobile
palmtop with Internet browser to log into our bank accounts. While
on-line we'll be able to check our accounts, pay a few bills and
click on a screen icon to immediately set up a video-conference to
discuss our account with a bank clerk.
On vacation, we'll be able to use our mobile palmtops to obtain
local tour guides, make a last-minute reservation at a hotel, find
and call the nearest taxi firm, and send video postcards. We'll
expect location-independent mobile access to a personalised set of
services that matches the way we live and work.
Increasingly, machine-to-machine communications will also be
enabled and enhanced with future mobile network technology. Domestic
appliances will have built-in radio modems to provide remote control
and diagnostics. Our refrigerators will have built-in sensors that
detect which items need restocking and automatically send a reminder
message to our Personal Digital Assistants (PDAs). We could even get
the refrigerator to send an order direct to our local store.
Likewise, vending machines will be able to tell the warehouse when
they need restocking.
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3G Wireless (Definition)
3G
stands for the third generation of wireless
communication technology. It refers to pending
improvements in wireless data and voice
communications through any of a variety of proposed
standards. The immediate goal is to raise
transmission speeds from 9.5K to 2M bit/sec.
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