Home' Infrastructure Australia : Infrastructure Australia 2011 Contents INFRASTRUCTURE AUSTRALIA APRIL 2011 35
Mobile networks begin Long Term Evolution
Mobile data networks could
see a jump in speed with
Australia s communica-
tions giants Telstra, Optus
and Vodafone-Hutchinson intending to
upgrade their respective networks with
Long Term Evolution (LTE) technology.
Telstra began its series of LTE trials
last May in Victoria involving Motorola,
Nokia Siemens Networks, Ericsson, and
Huawei. By December it had achieved
controlled peak downlink speeds of about
149Mb/s and peak uplink speeds of about
60Mb/s. At the Mobile World Congress
in Barcelona earlier this year, Telstra s
chief executive officer David Thodey
announced a partnership with Ericsson,
Sierra Wireless and Qualcomm.
e partnership will see its existing
850MHz Next G network complemented
with LTE technology in the central busi-
ness districts of all Australian capital
cities by the end of this year. LTE will
run on the existing 1800MHz spectrum
Telstra already uses for GSM/EDGE 2G
Optus successfully trialled LTE tech-
nology over the 2100MHz spectrum with
Nokia Siemens Networks last July. In
controlled tests it achieved peak downlink
speeds of about 73Mb/s. Uplink speeds
from the trial are not available, but in a
eld trial the company achieved uplink
speeds of about 20Mb/s. e eld trials are
continuing, expanding to cover Sydney s
eastern suburbs and over the 1800MHz
spectrum. e company does not yet have
a schedule for its LTE roll out.
Likewise, Vodafone is in the process
of completing its trials, partnering with
Huawei to test the new technology in
Newcastle over the 1800MHz spectrum.
It has so far also achieved peak downlink
speeds of about 73Mb/s but average up-
link speeds of only 5.6Mb/s. e company
is currently undergoing an 18-month
process of replacing and installing radio
equipment at its 8000 or so sites. Of these,
5800 base stations will be equipped with
LTE-compatible equipment. While this
will enable the use of LTE technology,
the company is still undergoing trials
and does not have a schedule for its LTE
Each of the telecommunications giants
has marketed the new technology as "4G".
However, technically the technology does
not conform to the standard set out by the
International Telecommunication Union
Radiocommunication Sector (ITU-R).
ITU-R requirements for 4G specify data
rates of about 1Gb/s.
ITU-R has since conceded that LTE
and other 3G-evolved technologies
(such as mobile WiMAX) can be con-
sidered 4G technologies provided they
represent a substantial difference in
performance and capability over exist-
ing 3G technologies.
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HD Series Spacers for Cased Crossing, Slip Lining
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INERT CENTRALIZER & SPACER SYSTEMS
FOR THE DRILLING & CIVIL CONSTRUCTION INDUSTRIES
e link is expected to improve services
for about 35,000 people along its route.
Western Australian communications
provider Westnet, a subsidiary of iiNet,
is already offering services across the
Civil engineering on the route was un-
dertaken by Visionstream and the Ngarda
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