from gsm to vowifi; the evolution of performance ...€¦ · sgsn pgw ggsn sgw mme sgsn ggsn mme...
TRANSCRIPT
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From GSM to VoWiFi; The Evolution of Performance
Management in Mobile Packet CoreHelge Ytre-Hauge, System Manager Mobile Packet Core, Telenor Norway
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Telenor in Norway
• Norway
• 5.2M people
• Rich and happy in most rankings
• Export of oil, gas, fish and metals
• Imported 2.8M mobiles 2015
• Telenor Norway
• Market leader with mobile, fixed, and
TV operation
• 21 % of Telenor Group Revenue
• 3.2M Mobile Subscribers
– 50% of Norwegian market
– 1.5% of Telenor Group subscribers
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Telenor in Norway
• Norway
• 5.2M people
• Rich and happy in most rankings
• Export of oil, gas, fish and metals
• Imported 2.8M mobiles 2015
• Telenor Norway
• Market leader with mobile, fixed, and
TV operation
• 21 % of Telenor Group Revenue
• 3.2M Mobile Subscribers
• Mobile Network, 2G/3G/4G
• 99.8% coverage
• Handsets
– 80% smart phones / 50% iPhones
– 60% 4G phones
– 30% VoLTE capable
• 85% of data at 4G
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EPC in Mobile Networks
4
SGSN/MME
SGW/PGW/GGSN
Internet
EPC
Corporate
Access
UDC
Signaling
& CS
Radio Access
2G
Policy &
ControlHSS
HLR
PCRF
OCS
3G 4G
ePDG
M2M
RCS
VoLTE
VoWiFiIMS
SBC MTAS
CSCF SBG
STPDSC
MSC
MGW
WiFi
15 VTIs
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5
Mobile Data and Complexity Growth
2G/3G
4G Data
4G w/CSFB
2008 2009 2010 2011 2012 2013 2014 2015 2016
VoWiFi
w/ 4G
mobility
4G Voice
VoLTE
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Network
Complexity
Importance of
Services
The Evolution Challenges
6
Reporting
Solution
PrOptima™
Organization
Size
Network
Complexity
Importance
of Services
Organization
Size
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PM Tool
Capabilities
Organization &
Processes
Network
Measurements
Network
Equipment
Properties
The Knowledge Pillars of a Good Reporting Solution
7
Reporting
Solution
PrOptima™
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The Knowledge Pillars of a Good Reporting Solution
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Reporting
Solution
PrOptima™
Network Vendor
MYCOM OSI
Network Vendor
Telenor
Network
Equipment
Properties
Network
Measurements
PM Tool
Capabilities
Organization &
Processes
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The Knowledge Pillars of a Good Reporting Solution
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Reporting
Solution
PrOptima™
Network Vendor
MYCOM OSI
Network Vendor
Telenor
Organization &
ProcessesTelenor
Telenor Telenor
PM Tool
Capabilities
Network
Measurements
Network
Equipment
Properties
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• EPC
• 1 HW
• 2 Configs
• 2 Functions
• 15 Min Granularity
VTI Optimization
• Insight in PrOptima™, Mobile Technology, Network
Equipment and Telenor processes have led to
optimized VTI structure.
• Trade-offs between consolidation and separation,
HW vs SW Applications
10
SGSN
GGSN
GGSNSGSN
SGSN GGSN
SGSN VTI + TAP GGSN VTI + TAP
2010
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• EPC
• 1 HW
• 2 Configs
• 5 Functions
• 15 Min Granularity
VTI Optimization
• Insight in PrOptima™, Mobile Technology, Network
Equipment and Telenor processes have lead to
optimized VTI structure.
• Trade-offs between consolidation and separation,
HW vs SW Applications
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SGSN
PGW
SGWGGSN
MME
GGSNSGSN
MME SGW
PGW SGSN GGSN
MME SGW PGW
EPC VTI + TAP
2011
SGSN VTI + TAP GGSN VTI + TAP
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• EPC
• 1 HW
• 2 Configs
• 5 Functions
• 15 Min Granularity
VTI Optimization
• Insight in PrOptima™, Mobile Technology, Network
Equipment and Telenor processes have lead to
optimized VTI structure.
• Trade-offs between consolidation and separation,
HW vs SW Applications
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SGSN
PGW
SGWGGSN
MME
GGSNSGSN
MME SGW
PGW SGSN GGSN
MME SGW PGW
One EPC VTI + TAP
2012
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• EPC
• 1 HW
• 3 Configs
• 6 Functions
• 5 Min Granularity
VTI Optimization
• Insight in PrOptima™, Mobile Technology, Network
Equipment and Telenor processes have lead to
optimized VTI structure.
• Trade-offs between consolidation and separation,
HW vs SW Applications
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SGSN
PGW
SGWGGSN
MME
ePDG
ePDG
GGSNSGSN
MME SGW
PGW SGSN GGSN
MME SGW PGW
ePDG
One EPC VTI
2015
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The User Interface
• Capacity and Quality
• Long term trends – more than a year
• Trends and Reporting – last month
• Routines and well defined KPIs and limits
• Limited number of KPIs per network function
• Aggregated levels
• Troubleshooting
• Events and daily monitoring
• Medium term trends
• Single network elements and unlimited number of measurements
• Large workspaces organized in project books
• Click and Scroll in finished views for capacity and quality
• Complex overview is starting point for troubleshooting
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The User Interface – Capacity Monitoring Example
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The User Interface – Capacity Monitoring Example
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The User Interface – Capacity Monitoring Example
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The User Interface – Capacity Monitoring Example
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The User Interface – Key Elements for Easy Maintenance
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NEs:
• Network Area Totals
• Network Area Content
Multi release KPIs Minimum Report
Maintenence with
Network Upgrades
and Changes
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User Interface Tuning
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Starting point matching old solution
Can we make it simpler?
Could we add more?X XX
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Email Reports – Better Control with Less Resources
• No projects books for
emails
• Specially designed
workspaces with suitable
layout for emails.
• Calculation time is
hidden.
• Capacity and quality
trends easily spotted
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Alarms – Better Control with Even Less Resources
• Too many reports too often is time consuming.
• Frequency vs Control is trade off
• Emails must be scheduled
• Email alarms can be triggered when limits are crossed.
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Email Reports used to monitor events
• Expected traffic peaks,
upgrades or other
changes.
• Performance reports
distributed at wanted
frequency to a broad
team of internal or
external stakeholders
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VoLTE - New Technology and Increased Complexity
• Long pilot phase with few subscribers needed to verify and implement
technology, internal and external pilots
• Launch with slow ramp up - stepwise provisioning of selected terminals
• Next main step is launch for Apple
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5x
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VoLTE KPI Example – SRVCC Success
• Call Handover Success from VoLTE to 2G/3G (CS) can be measured in
several nodes, but with different results
• The KPI levels in a pilot phase have limited value
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Pilot Ramp-up Launch
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VoLTE and VoWiFi
Load and Performance Overview?
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Finding the Right Balance
• The right KPIs
• The right network levels and areas.
• The right time and granularity
• The right people
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Thank you