challenges for son functions and son management
TRANSCRIPT
Challenges for SON Functions
and SON Management
Future Network &
Mobile Summit
3 - 5 July 2013,
Lisbon, Portugal
Colin Willcock,
Nokia Siemens Networks, Germany
Key Challenges
SEMAFOUR Vision
Use Case Selection
Concluding Remarks
Presentation Overview
2 SEMAFOUR
Key Challenges
3
Key Challenge: Market Pressure
4 * EU27: Average Revenue Per User (ARPU) 2007-2010 Source: Wireless Intelligence
„My Smart phone needs to charged so often it has almost turned into a fixed
phone again!“
Data Explosion
Reducing Revenue*
Key Challenge: Managing Future Network Complexity
5 SEMAFOUR
Multiple RATs Multiple Layers
GSM
LTE
HSPA
WiFi Macro (Coverage)
Micro (Capacity)
Femto (Hotspot)
Key Challenge: Managing Future Network Complexity
6 SEMAFOUR
Network Dynamism
Femto Cells
Energy Saving
Active Antennas
time
time
time
Which Areas Need to be Addressed?
7 SEMAFOUR
Active/Reconfigurable Antenna Systems
Automated Traffic Steering multi-RAT/Layer
Integrated SON Management
Dynamic Spectrum & Interference
SON
time
FP7 STREP Project
Develop the next generation of SON Solutions
Project Duration 09/2012-08/2015
SEMAFOUR Project
8 SEMAFOUR
Develop a Unified self-management system efficiently
operating a heterogeneous mobile network comprising
a multitude of radio access technologies and layers
SEMAFOUR Vision
9
– Integrated SON Management
– Policy transformation
– SON coordination
– Monitoring
– SON functions
– Single/multi-RAT/layer
– Self-configuration,
-optimization, -healing
– Decision support system
– Spectrum re-farming
– Technology upgrades
– Site deployment
– SLA management
SEMAFOUR Vision
10 SEMAFOUR
Integrated SON Management
*
Decision support system
*
SON functions
*
Use Case Selection
11
– Automatic traffic steering
– Multi-layer LTE/Wi-Fi traffic steering – Intra-LTE only
– Inter-RAT LTE and WiFi hot spots
– Idle mode mobility handling – Intra-LTE only
– Inter-RAT LTE and 3G
– Handover optimisation for high mobility users – Intra-LTE only
– Inter-RAT LTE and 3G
– Dynamic spectrum allocation and interference management – Intra-LTE only
– Intra-LTE multi-layer macro and femtocell
– Inter-RAT LTE and 3G
– Active/Reconfigurable antenna systems – Intra-LTE only
– Inter-RAT LTE and 3G
– Multi-flow from different LTE layers and technologies – Intra-LTE only
– Inter-RAT LTE and 3G
Proposed multi-RAT and multi-layer SON use cases and scenarios
12 SEMAFOUR
Automatic traffic steering
*
Dynamic spectrum allocation and interference management
Multi-flow from different LTE layers and technologies
Active/Reconfigurable antenna systems
– Operational SON coordination
– SON in high load regime
– LTE macro only
– LTE multi-layer (macro + micro/pico deployment)
– Multi-RAT LTE & 3G
– RAN sharing between different operators
– Decision Support System: Assistance to the operator for manual
optimization and enhancement of the network
– Spectrum and Technology Management
– Network Evolution
– Resource costs of ‘QoS’ as input for SLA management
– Policy-based SON management: automated derivation and
transformation of high-level objectives into dedicated technical
policies and rules for the execution of SON functions
– Input on operator objectives and KPIs on the operation of a SON-enabled
network
Proposed Integrated SON Management use cases and scenarios
13 SEMAFOUR
Operational SON coordination
Decision Support System: Assistance to the operator for
manual optimization and enhancement of the network
Policy-based SON management: automated derivation and
transformation of high-level objectives into dedicated
technical policies and rules for the execution of SON functions
Validation of Use-cases
14 SEMAFOUR
But how do we know the proposed Use-cases are really relevant for the mobile industry?
• SEMAFOUR aims to be industry driven
• Advisory board formed with key operators to give
broad feedback and interaction with the mobile
industry
• Detailed questionnaire and feedback from seven
international mobile network operators
Results on multi-RAT / multi-layer use cases and scenarios
15 SEMAFOUR
1,00 1,20 1,40 1,60 1,80 2,00 2,20 2,40 2,60 2,80 3,00
Autom. Traffic Steering - Intra-LTE
Autom. Traffic Steering - Inter-RAT LTE-WiFi
Autom. Traffic Steering Idle - Intra-LTE
Autom. Traffic Steering Idle - Inter-RAT LTE-3G
Autom. Traffic Steering High Mobility - Intra-LTE
Autom. Traffic Steering High Mobility - Inter-RAT LTE-3G
Spectrum and Interference Mgmt - Intra-LTE
Spectrum and Interference Mgmt - Intra-LTE + Femto
Spectrum and Interference Mgmt - Inter-RAT LTE-3G
Active Antenna Systems - Intra-LTE
Active Antenna Systems - Inter-RAT LTE-3G
Multi-flow Intra-LTE
Multi-flow Inter-RAT LTE-3G
→ Relevance (Higher)
↑ Timeline (Longer term)
Sho
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2 major groups of use cases / scenarios:
– High relevance with medium-term timeline (2-3 years towards
implementation)
– All automatic traffic steering
– Medium relevance with long-term timeline (longer than 3 years
towards implementation)
– Spectrum / interference management
– Active / reconfigurable antenna systems
– Multi-flow
In particular the automatic traffic steering within SEMAFOUR is fully
within timeline and relevance expectations of operators
LTE-macro, and multi-RAT with LTE and 3G are seen as the most
relevant network scenarios for the different use cases
Also taking into account the survey results, the multi-flow use case
will be put on hold within SEMAFOUR
Results on multi-RAT / multi-layer use cases and scenarios
16 SEMAFOUR
Results on integrated SON management
17 SEMAFOUR
1,00 1,20 1,40 1,60 1,80 2,00 2,20 2,40 2,60 2,80 3,00
SON Coord LTE Macro
SON Coord LTE Multi-layer
SON Coord Multi-RAT LTE-3G
SON Coord RAN Sharing in LTE
DSS Spectrum & Tech Mgmt
DSS Network Evolution
DSS QoS Resouce cost for SLA Mgmt
→ Relevance (Higher)
↑ Timeline (Longer term)
Sho
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Med
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All scenarios for operational SON coordination (run-time conflict resolution between different SON functions) have been ranked medium-high to highly relevant, and all scenarios have been considered as being relevant for implementation within a medium-term (2-3 years) timeline
– Also the RAN sharing scenario has been ranked high, showing the importance of RAN sharing in particular for LTE network deployments
All use cases for a Decision Support System have been ranked medium-high to highly relevant for implementation on a medium-term (2-3 years) timeline
The SEMAFOUR approach regarding SON coordination is fully in line with the relevance and timeline expectations of the operators
The Decision Support System approach gained high interest from the operators’ side, though the additional comments given on the DSS general value show that such a system needs to be well proven in practice to become trustworthy
Results on integrated SON management
18 SEMAFOUR
Concluding Remarks
19
Key drivers for self-management
– Complexity of future multi-layer/RAT technologies and
pressure to be competitive are key drivers for self-
management
SEMAFOUR has developed a vision for future SON systems
– Integrated SON management
– Multi-layer/RAT SON functions
– Decision Support Systems
The chosen areas and use cases have
been shown to be relevant for industry
Next we need Results!
Concluding Remarks
20 SEMAFOUR
See our Demonstration
Learn more at www.fp7-semafour.eu/
See the following related presentations
– Integrated Self-Management for Future Radio Access Networks:
Vision and Key Challenges
Remco Litjens, TNO ICT, Netherlands
– Impact of Realistic Mobility Modelling in the Context of
Propagation Modelling on the User and Network Experience
Dennis Rose, Technische Universität Braunschweig, Germany
For More Information
21 SEMAFOUR