|  World
Wide Wireless Technology Ltd
With some 100 years of collective
telecommunications experience in its core team, WWW
Technology Ltd
was formed in 2006 to provide a comprehensive in-country
radio system design, radio (RF) engineering, end-to-end network management and advanced technical expertise
for our
customers.
WWW is an independent company with
extensive experience of industry standard tools and
employs the best practiced techniques using a methodical
approach to meet network KPIs targets.
Our consultancy group offers 3G,
HSDPA/ HSUPA, WiMax and Future Wireless Internet short
courses
How
WWW sees the Interworking of Networks
in the Future:
Next Generation Network concept is all about how to deliver ubiquitous services
through multiple access technologies in order to reduce the cost of per
megabytes of data delivery. The goal here is to support new services that no
access technology could individually handle in an efficient and low cost
manner. Existing multiple access technologies are cellular, WLAN, broadcast and
WiMax. Many cellular operators have already interworked their cellular networks
with WLANs (WiFi networks) in order to leverage the benefits of licence-exempt
spectrum usage and higher capacity and QoS enhancement. Their subscribers also
benefits from access to a range of broadband multimedia services such as video
streaming, file downloading and access to the Internet. So far, operators
taking this path have adopted the lower degrees of coupling between their
cellular networks and WLANs only providing a single bill to their subscribers.
However, for full roaming between these two access technologies, tighter degrees
of coupling are needed in order to support a single sign-on (one authentication
key) and to support handover.
Recently, cellular and broadcast operators have been investigating the potential
for interworking their respective networks. The benefits of this interworking
are well recognised. From the broadcast operator’s point view, interworking can
introduce interactivity to their unidirectional point-to-multipoint broadcasting
systems; that is to say, a broadband downlink based on DAB/DVB-T can be
supplemented by a narrowband uplink through current 2G/3G cellular systems.
Thus, broadcasters can adapt the content of their multi-media services more
rapidly in response to feedback from their customers. From the cellular
operator’s point view, interworking can provide a complementary broadband
downlink in indoor and vehicular environments in order to support the Internet
multimedia traffic which is inherently asymmetrical. |
