How Smart Phones change mobile Networks for ever…
David OwensNetwork Performance Manager, Telefonica O2
Areas we are covering
Apple re-invents the phone
The smart phone paradigm
Impact of Data growth
Evolving our Network
L.T.E London Trials 2011
Key thoughts
Apple Re - invents the phone in 2007!
• Every once in a while a revolutionary product comes along that changes every thing!
• Wide screen iPod with touch control
• Revolutionary mobile
• Break through internet communication device
• iPod + Phone + Internet are you getting it!
• And they called it the iPhone
• Apple had reinvented the phone, and we all know that now.
• Key to Apple’s success was it made the iPhone both easy to use and smart
The Perfect Storm…
• The iPhone made using the internet really easy and fast…
• Break through App Store started to give customer easy ways to tell there friends what they were up to.
• Coupled with all you can use data tariffs
• Social Networking was born
• This created a storm of access attempts
• And lots and lots of traffic
Smart phones are driving radical data traffic growth Date Traffic Grew really fast ~33 times since June 2008 . . .
Data Traffic continues to growth at a pace, doubling approximately every 6 months
Impact on the London network 2009
• Data traffic growth started to impact voice calls…
• Data performance falling below target…
• We were receiving negative comments in press
• Customer satisfaction levels questioned
• O2 wanted to give our customers the network they deserved
• We needed to get the right capacity in the right places for our customers.
Advanced thinking in 2009 – the smart phone paradigm shiftCapacity enhancement strategies• Deploy 3G Microcells• Upgrade sites to 6 sector• WiFi offload approaches
Device insight• Understanding ‘hostile’ device
behaviour (e.g. Fast Dormancy, poor RF sensitivity of iconic devices)
3G experience awareness• New customer-centric statistics to
identify challenged sites• Using ariesoGEO to pinpoint data
hotspots from within the network geography
Infrastructure pinch points• Resolve BTS & RNC pinch points
with vendors• Roll out next generation of BTS
Pioneering new Offload strategies…
New solutions allow us to understand traffic & performance to a building resolution. Data traffic hotspot at UCL student lodgings.
• Understand & solve complex areas, challenging radio environments
• Huge flow of people at rush hours
• High numbers of VIP corporate customers
First UK operator to rollout 6 sectors sites: 40% capacity uplift, 25% more connections
Microcell must be close to the source of traffic, giving 250% capacity uplift per square kilometer
O2 task force established– trialling new ways of working. Nominated for 2010 Global Telecoms Business Innovation Award.The programme continues to push new boundaries…
O2UK Radio Network Evolution 2008-2015
Small Cell Technology(WiFi, Femto, Pico)
2009 2010 2011 2012 2013 2014 2015
LTE1800/2600
LTE800/900
UMTS900/HSPA+
6 Sector
Cell Split
YearMicrocells
Cell Split
6 Sector
Microcells
2009: 1st UK and TEF Operator to Industrialise 6 sector sites for 3G2009: 1st UK and TEF Operator to Industrialise Microcell for 3G2009: 1st UK and TEF Operator to launch LTE2600 trial network2010: 1st UK and TEF Operator to launch UMTS900 trial network2010: 1st UK UK and TEF Operator to make LTE800 call2011: 1st UK UK and TEF Operator to commercially launch UMTS900 service2011 Plans: Wi-Fi, Femto, HSPA+(21&42Mbps), LTE2600 London trial, Metrocells
10REC/09/099, Draft B, 17/12/09 Slide 10Confidential
Limited to 7 macrocells within 1x1km area
3G Macrocell2100 MHz (1) – 1st carrier2100 MHz (2) – 2nd carrier
O2UK Radio Network 2010 (Single Layer 3G)
11REC/09/099, Draft B, 17/12/09 Slide 11Confidential
Busiest 200x200m area requires 6 microcells
plus 3 carrier picocells/public femto
cells
Busy areas require 50m radius microcells
Limited to 7 macrocells within 1x1km area
Microcell range limited to 150m due to building
loss and corner loss
All microcell deployed with 4 carriers (2xU2100, 1xU900 &
1xLTE2600).
2600 MHzMacrocell
Microcell
Picocell
2100 MHz (1)
2100 MHz (2)
900 MHz (1)
900 MHz (2)
O2UK Radio Network 2013 (Heterogeneous 3G/4G)
Small Cells, Femtocells & Wi-Fi
Small Cells are required to cope with x5-10 capacity requirements
2011: O2 Wi-Fi – Free Public Wi-Fi deployment2011: VIP/SME Femtocell Pilot, Corporate Trial
2011: Metrocell (Public Femto, Street Furniture 3G/4G Trial)2012: Metrocell deployment
5REC/09/099, Draft B, 17/12/09 Slide 5Confidential
Busiest 200x200m area requires 6 microcells
plus 3 carrier picocells/public femto
cells
Busy areas require 50m radius microcells
Limited to 7 macrocells within 1x1km area
Microcell range limited to 150m due to building
loss and corner loss
All microcell deployed with 4 carriers (2xU2100, 1xU900 &
1xLTE2600).
2600 MHzMacrocell
Microcell
Picocell
2100 MHz (1)
2100 MHz (2)
900 MHz (1)
900 MHz (2)
Preparing for The Mobile Data OlympicsHow we’ve tackled it
• Twickenham Rugby Stadium, West London is our Proving Ground.
• Solution: Higher order sectorisation within Stadia - another first in the UK
• Result: A template from which we can confidently build high capacity solutions at all key Olympic venues
C42203 S1
C42206 S3
C42203 S3
C42204 S1
C42204 S2
C42203 S2
C42203 S3
C42206 S2
C42206 S1
C47295
S2
SECTOR 1 SECTOR 2 SECTOR 3
S 4
S 5
S 6
S7
S 8
SECTOR 9SECTOR 10SECTOR 11
S12
S13
S 14
S 15
S16
L4
L5
SECTOR 19SECTOR 18SECTOR 17
SECTOR 24SECTOR 25SECTOR 26
S 30
S 29
S 28
S 27
S 20
S 21
S 22
S 23
4 sectors
30+ sectors
Target: Increase Twickenham bowl coverage from 4 to 30-40 sector (x10 capacity)
O2 Femto
LTE London Operational Trials 2011
Target high data uses/corporates in Central London to offload data from 3G
LTE trial will allow backhaul of O2 Wi-Fi hotspots in 2011. All they’ll need is a power socket (literally plug & play)
LTE is the future, but handsets/traffic will take time to come.However can make it sweat from day 1 and offload our 3G network through novel 2G/3G offload techniques as described above - to be trialled in 2011
Smaller cells for 3G are the future. Backhaul is the problem. LTE to be trialled as a solution to small cell (2G/3G/4G) backhaul.
Friendly Users
O2 network coverage
It was nice to get a pat on the back, but the hard work continues…
Key thoughts• Apple did reinvent the Phone…
• Smart phones, App & Social Networking have changed the mobile industry forever…
• 3G will continue to evolve to deliver faster speeds – but user experience is key
• Location-aware data provides customer-centric decision making & network performance maximising network investment
• Need to push the technical boundaries for ours customers
• We now have new technology to take our performance from cell level to building resolution, and this will be key capability for the future data needs of our customers…