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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WITHOUT SELF-HEALING:DRAMATIC DROP

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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

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Integrating use casesinto an overall solution

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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

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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

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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)

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Hans van den Berg (TNO) -- FP7 SOCRATES Final Workshop, Karlsruhe, 22 February 2011

QUESTIONS?

UESTIONS?