Building the Business Case for
MIKE WRIGHTExecutive Director Wireless Engineering & Operations
Building the Business Case for Mobile Broadband
The HSPA Evolution Path
Broadband World Forum 2009
Australia – a wireless snapshot
• >100% mobile penetration
• Single, national network:
> 2 million Sq kms >99% pops
• 850 MHz spectrum, 100% HSPA
• High speed backhaul to 84%
6th largest land mass9th lowest population density
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Telstra Next G™: Always 3G
• High speed backhaul to 84%
pops, of which 76% is Ethernet
• Built on a new, lower unit cost
platform and globally-dominant
technology roadmap
Strong wireless demand driving results
10.2 million wireless customers, up 9%Wireless network traffic doubling every
eight months
Mobile data revenue (data cards) up 31%
11 billion mobile MOU, up 9%
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More than 60% of handsets on 3G3G SIOs over 6.3 million
Over 50% of data revenues non-SMS
3G driving wireless HSPA data trafficB
us
y H
ou
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ate
[M
bp
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downlink
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0
uplink
These trends will continue, driven by :• Smarter devices with richer & more integrate applications• Increased take-up of m2m as connected devices become ubiquitous• New and emerging enablers eg Near Field/Payments
Reliable performance and high speeds are available today with HSPA+
Dropout rate best ever• well below 1%
DROPOUT %
GSM
CDMA
AMPS
WCDMA850
WCDMA2100
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HSPA+ 21 Mbps Peak Network Devices :• typical user speeds 550-8 Mbps• bursts higher
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MONTH & YEAR
Independent Network Assessment
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Signals Research Documents on HSPA testing contain extensive test results & observations
Why follow technology ? Unit cost comparisons
60%
70%
80%
90%
100%
Cost per MByte as % of GPRS
80%
100%
Cost of Voice as a % of GSM
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* Telstra derived relative Wireless network unit costs
0%
10%
20%
30%
40%
50%
GPRS EDGE WCDMA(R99)
HSDPA HSPA+ LTE
0%
20%
40%
60%
GSM CapabilityToday
Future Voice Optimisation
Demand Assumptions are traditionally low
Ericsson historicforecasts
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Telstra historic estimates
We need to look ahead to new ways to carry impending demand
• Our roadmap has LTE as our technology of choice for 4G deployment.
• LTE is not a revolution for our architecture
• We see evolution to LTE largely as an overlay to allow us to continue to deliver quality of service and throughput to an increasing number of users and applications on our network.
• Finally, Australian LTE deployments will be influenced by availability of spectrum and the order in which different spectrum bands become available.
• The Telstra philosophy essentially is to use low frequency bands for coverage and,
LTE – Why, How, When
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• The Telstra philosophy essentially is to use low frequency bands for coverage and, when that starts to use up the spectrum, use high frequencies in the dense areas for capacity.
2006 2007 2008 2009 2010 2011 2012 2013
HSDPA/HSUPA
3.6/14.4Mbps� 1.9 Mbps�
HSPA+
42 Mbps
HSPA+
21(28)/5.8
HSPA+(MIMO)
84 Mbps
HSPA+(MBand)
168 Mbps
LTE
172 Mbps ++
HSDPA/HSUPA
3.6/14.4Mbps� 1.9 Mbps�
HSPA+
42 Mbps
HSPA+
21(28)/5.8
HSPA+(MIMO)
84 Mbps
HSPA+(MBand)
168 Mbps
LTE
172 Mbps ++
• LTE at high frequencies and 20 MHz bandwidth channels will give superior speeds
• Due to coverage limitations at higher frequencies smaller islands of capacity in dense traffic areas are more likely/viable as building a full coverage layer at 2.6 GHz would require additional sites above even a 2100 WCDMA network rollout and still suffer in-building losses.
• Lower frequency LTE would make larger ‘start-up’ coverage layers/islands more viable.
Radio deployment options to LTE
High Frequency
2.6 GHz capacity
Layer
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HSPA+
LTE 2.6 GHz
n x 5 MHz
n x 20 MHz
• Nationwide 850 MHz HSPA layer
• Plus 2100 MHz Hot spot areas
LTE700 MHz layer from Digital Dividend
LTE700 MHz layer from Digital Dividend
Layer
n x 20 MHz
700MHz LTE wide area
coverage to capitals and
major regional centres
Taking the HSPA road to LTE
• HSPA+ provides us with a solid roadmap to
deliver new and innovative Wireless Broadband
services.
• Demand for Wireless Data will continue to grow
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• LTE provides and important evolution in order
to support the demands of growth and future
services.
