cellwize son conference october 2013

Private & Confidential

Expanding SON limits for traffic steering across legacy, current and

future technologies


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


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


Real Case Study:How SON can dynamically stretch your

network boundaries


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


…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


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


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)


Moving to Unified Network Strategy: Step 1

GSM

UM

TSLT

E



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



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



LTE coverage and capacity boost enables higher data services for LTE-capable device.

GSM

UM

TSLT

E



The Re-farming of GSM1800 to LTE1800 resulted in 25% of subscriber’s traffic were steered to UMTS from LTE

GSM

UM

TSLT

E


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


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


And the reduction in network related churn

was the real prize for marketing…