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those for the 2008 Beijing Olympics and future Internet systems,
said an official at the telecommunications ministry.
A
4G orientated meeting was held in Seoul in March with officials from
the above countries, where they agreed to share information and work
together on developing 4G mobile phones.
In
Eliza Evans and others (2004) the implications of 4G network are
discussed in detail. They predict that if implemented, the projected
4G technology may facilitate a true IP cellular network. 4G mobile
phone technology supports Internet Protocol version 6 (IPv6) and
promises faster communication speeds (100 megabits per second),
capacity and diverse usage formats. These formats would provide
richer content and support for other public networks such as optical
fibre and wireless local area networks.
4G
is currently only an ideal. Still, some companies are incorporating
new technological advances into cellular technology, something that
some companies are calling “3.5G.” 3.5G technology, the
convergence of cellular and wireless LAN technologies, has led to a
handset that makes calls using Voice over Internet Protocol (VoIP)
when a 802.11 network is available (for example, when at home or at
the office), then switches to a 3G cellular network when mobile.
Someday
4G networks may replace all existing 2.5G and 3G networks, perhaps
even before a full deployment of 3G. Multiple 3G standards are
springing up that would make it difficult for 3G devices to be truly
global. A strong need exists to combine both the wireless (LAN)
concept and cell or base station wide area network design. 4G is
seen as the solution that will bridge that gap and thereby provide a
much more robust network.
Table
2, lists down the comparison between 3G and the upcoming 4G
networks.
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