Cellwize SON conference October 2013
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Transcript of Cellwize SON conference October 2013
Private & Confidential
Expanding SON limits for traffic steering across legacy, current and
future technologies
Private & Confidential
A day in the life of a wireless operator
“mmm, let’s fix it one by one, where should
we start?...”
“we invested in three technologies, why is the average speed on the unlimited plans just 700KBps?..” “too many complaints on disconnected calls,
can we fix it once and for all?..”
“how come our data speed is lower than competition in all city centers”
“our network coverage during weekends is very
problematic..”
“people cannot make calls in some of the
metro stations...Fix it”
Cellwize helps Engineering departments to improve
all network aspects trough unified Cross-Technology
SON products
Private & Confidential
Incorporating SON with unified network strategy
Checkpoints
Set Goals
Form
Strategy
Apply
SON
Understand subscriber network perception
Validate network driven churn rates
Cross-check operational efficiency
Improve network perception
Control churn rates by improving network quality in the right
place and time
Improve efficiency by introducing automation
Network availability and retainability
Attractive marketing offers for data and voice without incurring
additional network costs
Automate operational tasks
Increase network utilization
Improve network performance in all dimensions
Automate network optimization cycles
Private & Confidential
A state of the art MNO
The network:
• EMEA Operator
• Multi-technologies: GSM (900/1800), UMTS (2100) and LTE
(2600/1800)
• Multi-vendor: Ericsson and NSN
• Multi-frequency: F1, F2, F3 and F4
• Network size: 30,000 cell sectors (all technologies)
• Network environment: Dense-urban
• Smartphone penetration: over 60% of the subscribers
Private & Confidential
…with state of the art problems
20%UMTS-capable device
served by GSM
10 KbpsAverage throughput in
GSM network
4 TRXsIn average per
Cell in GSM
2% DCRIn UMTS Network
700 KbpsAverage throughput in
UMTS network
50%LTE-capable device
served by UMTS
Private & Confidential
Technologies vs. Services
The key to strategic cross-technology optimization is understanding the services and technology matrix and working with it and not against it
GSM UMTS LTE
Subscribers 20-30% 40-60% 10%
Service Voice Centric Voice/Data Data Centric
Pros CoverageCoverage/
CapacityCapacity
Cons OverloadedInterference
sensitiveHot-spot
Private & Confidential
Network Envelope before Cellwize
“.. Our main strategy is to provide most consistent voice service with the highest data throughput to our customers anywhere, anytime across all layers and network
technologies..” (MNO CTO)
Private & Confidential
Moving to Unified Network Strategy: Step 2
UMTS coverage expansion allowed to ‘soak-in’ UMTS-capable device onto UMTS resulting in 10% of subscriber’s traffic steered to UMTS
GSM
UM
TSLT
E
Private & Confidential
Moving to Unified Network Strategy: Step 3
The Re-farming of GSM900 to UMTS900 resulted in additional 6% of subscriber’s traffic were steered to UMTS from GSM
GSM
UM
TSLT
E
Private & Confidential
Moving to Unified Network Strategy: Step 4
LTE coverage and capacity boost enables higher data services for LTE-capable device.
GSM
UM
TSLT
E
Private & Confidential
Moving to Unified Network Strategy: Step 5
The Re-farming of GSM1800 to LTE1800 resulted in 25% of subscriber’s traffic were steered to UMTS from LTE
GSM
UM
TSLT
E
Private & Confidential
Moving to Unified Network Strategy: The end
Implementing unified network strategy resulted in network envelope expansion providing sustainable voice services and higher data throughput data services
Before
GSM
UM
TSLT
E
GSM
UM
TSLT
E
After
Private & Confidential
Achieved results
Operational& business:
• Legacy GSM trunks were minimized to an optimal point serving feature
phones
• Legacy GSM network was simplified for maintenance of voice services
• UMTS network handles moderate data demand with support for voice
calls at peak time
• LTE network was thickened (added 5+Mhz @ 1800) handling most of
high data throughput demand
• UMTS network was thickened (added 4.4Mhz @ 900) efficiently serving
more subscribers with more voice calls and data sessions
4%UMTS-capable device
served by GSM
3 TRXsIn average per
Cell in GSM
0.6% DCRIn UMTS Network
1.2 MbpsAverage throughput in
UMTS network
25%LTE-capable device
served by UMTS