FP7 SOCRATES
FP7 SOCRATESFinal Workshop
Karlsruhe – 22 February 2011SOCRATES Project Overview
Hans van den Berg (TNO; project coordinator)
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Hans van den Berg (TNO) -- FP7 SOCRATES Final Workshop, Karlsruhe, 22 February 2011
FP7 SOCRATES
FP7 SOCRATES Project Overview– Background– Approach– Use cases– Main results
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Hans van den Berg (TNO) -- FP7 SOCRATES Final Workshop, Karlsruhe, 22 February 2011
SOCRATES– Self-Optimisation and self-ConfiguRATion in wirelEss networkS
Project period– 3-year duration: From 01/01/2008 until 31/12/2010
Effort– Number of person months: 378– Total project costs: € 4,980,433
FP7 SOCRATES: FIGURES & FACTS
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Hans van den Berg (TNO) -- FP7 SOCRATES Final Workshop, Karlsruhe, 22 February 2011
Self-organisation in wireless networks
– Self-configuration – e.g. ‘plug-and-play’ of new base
stations– Self-optimisation
– measurements, processing,parameter adjustment, …
– continuous loop– Self-healing
– failure detection– automatic minimisation of
coverage/capacity loss
Focus on 3GPP LTE (E-UTRAN)
Evolutionary approach
FP7 SOCRATES: KEY ISSUES
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Hans van den Berg (TNO) -- FP7 SOCRATES Final Workshop, Karlsruhe, 22 February 2011
SELF-ORGANISATION: EXPECTED GAINS (1/2)
OPEX reductions …– Primary objective!– Network operations increasingly complex– Less human involvement in
– Network planning/optimisation– Performance monitoring, drive testing– Troubleshooting
Coverage GSM
Coverage EDGE
Coverage UMTS
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Hans van den Berg (TNO) -- FP7 SOCRATES Final Workshop, Karlsruhe, 22 February 2011
SELF-ORGANISATION: EXPECTED GAINS (2/2)
… and CAPEX reductions …– Efficiency improvement delayed capacity expansions
– smart eNodeBs may however be more expensive
… and performance enhancements– Enhanced service availability (robustness, resilience), QoS
IMPACT OF 'SELF-HEALING'
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WITH SELF-HEALING:QUICK RECOVERY
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WITHOUT SELF-HEALING:DRAMATIC DROP
TO INTOLERABLE LEVEL
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Hans van den Berg (TNO) -- FP7 SOCRATES Final Workshop, Karlsruhe, 22 February 2011
Main SOCRATES objective: Development of concepts, methods and algorithms for self-organisation in LTE
– self-optimisation, self-configuration and self-healing
Highly complex radio access networks pose major challenges for self-organisation
– many control mechanisms and parameters– acting at different time scales – intricate dependencies
– limitations on measurements, processing
SOCRATES: OBJECTIVES
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Hans van den Berg (TNO) -- FP7 SOCRATES Final Workshop, Karlsruhe, 22 February 2011
FP7 SOCRATES
Overview
FP7 SOCRATES– Background– Approach– Use cases– Main results
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Hans van den Berg (TNO) -- FP7 SOCRATES Final Workshop, Karlsruhe, 22 February 2011
SOCRATES: APPROACH (1/2)
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Defining use cases, assessment criteria, reference scenariosand the framework
Developmentphase
Developing solutionsfor individual use cases
Integrationphase
Integrating use casesinto an overall solution
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• Three phases
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Hans van den Berg (TNO) -- FP7 SOCRATES Final Workshop, Karlsruhe, 22 February 2011
SOCRATES: APPROACH (2/2)
Evolutionary approach towards self-optimisation– Take current architecture as starting point
– Works quite well, when parameters are properly tuned …– ‘Make’ existing functionalities ‘self-optimising’
– E.g. RRM mechanisms, Handover, …– Determine actual need for self-optimisation by sensitivity analysis– Develop algorithms for ‘automatic’ adaptation of parameters
– Required architectural modifications impact on standardisation– Measurements, interfaces, signaling, …
Twenty-five ‘use cases’ defined and investigated– Stand-alone functionalities– Interacting functionalities
– coordination needed!
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Hans van den Berg (TNO) -- FP7 SOCRATES Final Workshop, Karlsruhe, 22 February 2011
SOCRATES USE CASES: STAND-ALONE FUNCTIONALITIES
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Self-optimisation
Handover parameter optimisation
Self-configuration Automatic generation of initial params
Self-healing Cell outage management
SON enabler X-map estimation
Load balancing
Packet scheduling optimisation
Admission control optimisation
Interference coordination
HeNB handover optimisation
HeNB interference and coverage opt.
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Hans van den Berg (TNO) -- FP7 SOCRATES Final Workshop, Karlsruhe, 22 February 2011
SOCRATES USE CASES: INTEGRATED FUNCTIONALITIES
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Self-optimisation
Admission Control and Handover Opt.
Load balancing and Handover Optimisation
Macro & Home eNodeB Handover Opt.
Packet Scheduling and Interference Coord.
Combinations of use cases where there is either a control parameter conflict or an observability dependency
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Hans van den Berg (TNO) -- FP7 SOCRATES Final Workshop, Karlsruhe, 22 February 2011
FP7 SOCRATES
Overview
FP7 SOCRATES – Background– Approach– Use cases– Main results
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Hans van den Berg (TNO) -- FP7 SOCRATES Final Workshop, Karlsruhe, 22 February 2011
MAIN PROJECT RESULTS (1/2)
Framework for development of self-organisation methods
– high-level guidelines, requirements, …
– D2.4/D2.5, D5.9 (Ch.2)
Assessment criteria and methodologies
– OPEX, CAPEX, performance gains– reference scenarios– D2.3
Self-organisation methods and algorithms for selected use cases
– stand-alone– integrated– D5.9 (Ch.8, Ch.9)
localrevenue
time
localrevenue
time
repair time
manualdetection
time
eNodeBdies
eNodeBrevived
repair time
regained revenue due tocell outage compensation
regained revenue due tocell outage detection otherwise
missedrevenueCASE WITH
SELF-HEALING
CASE WITHOUTSELF-HEALING
localrevenue
time
localrevenue
time
repair time
manualdetection
time
eNodeBdies
eNodeBrevived
repair time
regained revenue due tocell outage compensation
regained revenue due tocell outage detection otherwise
missedrevenueCASE WITH
SELF-HEALING
CASE WITHOUTSELF-HEALING
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Hans van den Berg (TNO) -- FP7 SOCRATES Final Workshop, Karlsruhe, 22 February 2011
MAIN PROJECT RESULTS (2/2)
SON coordination framework– alignment of interacting SON functions– D5.9 (Ch.4)
Measurements, architecture & interfaces for SON
– based on use case studies, SON coordinator
– D5.10
SON demonstrators– visualisation through simulation– validation– D5.8
Implications of SON– network planning & operations– D5.9 (Ch.5)
AUTOGNOSTICS
POLICY
ALIGNMENTIncl. Guard function
NETWORK SUBSYSTEM (e.g., eNB, neighbours, OSS, NMS)
OPERATOR
SONFUNCTIONS
POLICYinterface
performance quality metric
change requests
objectives
feedback onperformance
SON System
SONFUNCTIONS
SONFUNCTIONS
SONFUNCTION
specify data
requests
objectives & constraints
performance data
configuration changes
performance data
feedback & constraints
control parameterinterface
raw measurements &configuration changes
Communication with peers
Note SON system will often be in the
eNB, but could be in any node
AUTOGNOSTICS
POLICY
ALIGNMENTIncl. Guard function
NETWORK SUBSYSTEM (e.g., eNB, neighbours, OSS, NMS)
OPERATOR
SONFUNCTIONS
POLICYinterface
performance quality metric
change requests
objectives
feedback onperformance
SON System
SONFUNCTIONS
SONFUNCTIONS
SONFUNCTION
specify data
requests
objectives & constraints
performance data
configuration changes
performance data
feedback & constraints
control parameterinterface
raw measurements &configuration changes
Communication with peers
Note SON system will often be in the
eNB, but could be in any node
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Project deliverables, publications, presentations, …– Final Deliverable D5.9!
Organisation of workshops– Mid-term workshop at ICT Mobile Summit 2009
– jointly with E3 project– joint SOCRATES / COST2100 workshops
– Braunschweig, February 2009– Athens, February 2010
Demonstration stand at Future Networks & Mobile Summit 2010
– Florence, June 2010
Demonstration session at Informa SON conference – London, November 2010
Interactions with NGMN– meetings, discussions
Liaisons to 3GPP– several contributions delivered and planned
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Hans van den Berg (TNO) -- FP7 SOCRATES Final Workshop, Karlsruhe, 22 February 2011
SOCRATES – DISSEMINATION OF PROJECT RESULTS (D5.8)