SON for Future Networks - VDE · PDF file2G/3G SON(LTE SON UNIFIED SELF ... KPI targets •...

SON for Future Networks

FUTURE NETWORKS 2014

Technische Universität Braunschweig 25. September 2014

Policy-Based SON Management

Sören Hahn Technische Universität Braunschweig

SEMAFOUR Vision

3 SEMAFOUR - Workshop on SON for Future Networks, 25. September 2014

Decision Support System

SERVICE PROVIDER

NETWORK OPERATOR

HETEROGENEOUS NETWORK

General Network-‐Oriented ObjecGves

Network Status related to General Network-‐Oriented ObjecGves

Integrated SON Management

Physical Network Resources



Policy-‐Based SON Management Mon

itorin

g &

Diagno

sis

OperaGonal SON CoordinaGon

MulG-‐RAT / MulG-‐layer SON

WLAN Mgmt.

2G / 3G SON

LTE SON

UNIFIED SELF-MANAGEMENT SYSTEM

SEMAFOUR Vision & Integrated SON Management

4 SEMAFOUR SEMAFOUR


Policy-‐Based SON Management Monitoring



Decision Support System Decision

Support System

SERVICE PROVIDER

NETWORK OPERATOR








Policy-‐Based SON Management

Mon

itorin

g &

Diagno

sis



WLAN Mgmt.

2G / 3G SON

LTE SON


Further Refinement

SEMAFOUR Vision & Policy-Based SON Management


PBSM

SON Objective Manager

NETWORK OPERATOR

Operator Objective

Context Model

Network

SON FUNCTION MANUFACTURER

SON Function

Model

SON Function

Model

SON Function

Model

SON 1 SON 2 SON N …

Policy System

Policy decision

Policy enforcement

NETWORK CONTEXT

FM Data CM Data

PM Data

SON Policy Design-Time

Run-Time


Policy-‐Based SON Management Monitoring




§  Network Operators want the ability to define and change objectives: –  Define and select Key Performance Indicators (KPIs) –  KPIs have to meet target values and/or be in defined ranges

§  Assumption: –  SON enabled mobile network –  SON Functions have control parameters (SCP) that can be adjusted from outside –  Each SON Function Configuration Parameter Value (SCV) Set has certain impact

on the performance and thus the network behaviour

Policy-Based SON Managment: Assumptions


SON Function

Measurements (Radio) Parameter adjustment

Change Parameter

Change Performance

Operator Network Performance

§  Network Operators want the ability to define and change objectives: –  Define and select Key Performance Indicators (KPIs) –  KPIs have to meet target values and/or be in defined ranges

§  Assumption: –  SON enabled mobile network –  SON Functions have control parameters (SCP) that can be adjusted from outside –  Each SON Function Configuration Parameter Value (SCV) Set has certain impact

on the performance and thus the network behaviour

Policy-Based SON Managment: Assumptions


SON Function


Change Parameter

Change Performance

Operator Network Performance

SON Function Configuration Parameters (SCP)

“Max Load” = 80% ≙ SON Function Configuration Parameter Value (SCV)

Network Operator

•  Aim is the achievement of dedicated KPI targets

•  Target Values may not be the same globally or at all times within the mobile network

Technical Objectives


PBSM


NETWORK OPERATOR

Operator Objective

Context Model

Network


SON Function

Model

SON Function

Model

SON Function

Model


Policy System

Policy decision

Policy enforcement

NETWORK CONTEXT

FM Data CM Data

PM Data


Run-Time

•  Dropped Call Rate < 2.5% •  Cell Load < 90% •  Handover Success Rate > 99.5%

Examples

Network Operator

•  Technical Objectives cannot be interpreted by the SON functions

Automation gap


PBSM


NETWORK OPERATOR

Operator Objective

Context Model

Network


SON Function

Model

SON Function

Model

SON Function

Model


Policy System

Policy decision

Policy enforcement

NETWORK CONTEXT

FM Data CM Data

PM Data


Run-Time

•  SON-enables mobile network, and thus the operational and network context, may be subject to frequent changes

Dynamics gap

SON Function


?

Network Operator – Objective Model

•  Machine readable model of objectives, e.g., rules

•  Provided by operator

Objective Model


PBSM


NETWORK OPERATOR

Operator Objective

Context Model

Network


SON Function

Model

SON Function

Model

SON Function

Model


Policy System

Policy decision

Policy enforcement

NETWORK CONTEXT

FM Data CM Data

PM Data


Run-Time •  IF time in [08:00, 17:59]

AND location = urban THEN minimise cell load WITH priority = 1

•  IF location = rural THEN minimise energy consumption WITH priority = 4

Examples

Network Operator – Context Model

•  Domains of context variables •  Necessary for computation •  Provided by operator

Context Model


PBSM


NETWORK OPERATOR

Operator Objective

Context Model

Network


SON Function

Model

SON Function

Model

SON Function

Model


Policy System

Policy decision

Policy enforcement

NETWORK CONTEXT

FM Data CM Data

PM Data


Run-Time

•  Type: {Micro, macro} •  Technology: {LTE, UMTS} •  Location : {rural, urban} •  Mobility: {normal, high} •  Time : [00:00, 23:59]

Examples

Network Operator – Context Model – An Example:



•  Mapping of (technical) Operator Objectives with SON Function Model

•  Derivation of SON Policy containing SCV Sets

•  Overcoming the automation gap



PBSM


NETWORK OPERATOR

Operator Objective

Context Model

Network


SON Function

Model

SON Function

Model

SON Function

Model


Policy System

Policy decision

Policy enforcement

NETWORK CONTEXT

FM Data CM Data

PM Data


Run-Time

•  Sets of SON Function Configuration Parameter Values (SCVs) for Context-dependent KPI targets per SON Function

Input: Function Models

SON Function Models – Aggressiveness

•  Has to provide Model that describes the impact of SCV Sets on network KPIs

•  Give insides into the “Black-Box”

SON Function Manufacturer


PBSM


NETWORK OPERATOR

Operator Objective

Context Model

Network


SON Function

Model

SON Function

Model

SON Function

Model


Policy System

Policy decision

Policy enforcement

NETWORK CONTEXT

FM Data CM Data

PM Data


Run-Time

- KPI

Impa

ct +

SCV Sets

Call Drop Rate

Handover Success Rate

Cell Load

SON Policy

•  Conflict-free and complete rules defining SCV Sets for defined context

•  Linking artifact between SON Objective Manager and Policy System

à bridges design- & run-time process

SON Policy


PBSM


NETWORK OPERATOR

Operator Objective

Context Model

Network


SON Function

Model

SON Function

Model

SON Function

Model


Policy System

Policy decision

Policy enforcement

NETWORK CONTEXT

FM Data CM Data

PM Data


Run-Time

•  IF ((time in [00:00, 07:59] OR time in [18:00, 23:59]) AND location = urban) OR (time in [08:00, 17:59] AND location = rural) THEN MLB = (6, -6, 1, 0.3, 60)

Examples

SCV Set

Policy System

•  To overcome dynamics gap •  Evaluates the SCV Policies at run-time

•  Dynamically configures SON Functions accordingly

Policy System


PBSM


NETWORK OPERATOR

Operator Objective

Context Model

Network


SON Function

Model

SON Function

Model

SON Function

Model


Policy System

Policy decision

Policy enforcement

NETWORK CONTEXT

FM Data CM Data

PM Data


Run-Time

•  e.g.: Current time, PM/CM/FM data provided from the network KPIs

Input: Network Context

SON 1

Network (Elements)


SON Function


SCV Set SON 2

SON Function


SCV Set SON N

SON Function


SCV Set

PBSM


NETWORK OPERATOR

Operator Objective

Context Model

Network


SON Function

Model

SON Function

Model

SON Function

Model


Policy System

Policy decision

Policy enforcement

NETWORK CONTEXT

FM Data CM Data

PM Data


Run-Time

Interaction with other SEMAFOUR Blocks

•  Different SON functions operating concurrently in the network can interact such that they negatively impact network performance

•  Aim is the resolution of such conflicts during run-time of the SON functions

SON Coordination


PBSM


NETWORK OPERATOR

Operator Objective

Context Model

Network


SON Function

Model

SON Function

Model

SON Function

Model


Policy System

Policy decision

Policy enforcement

NETWORK CONTEXT

FM Data CM Data

PM Data


Run-Time

•  Acquire, analyse, and process information from the network and the OAM system (e.g., performance measurements, alarms, and configuration data)

Monitoring & Diagnostics


SERVICE PROVIDER

NETWORK OPERATOR








Policy-‐Based SON Management

Mon

itorin

g &

Diagno

sis



WLAN Mgmt.

2G / 3G SON

LTE SON


Conclusions


•  Steer and manage my network!

•  PBSM to overcome management gaps

•  Select and adjust SCV Sets

•  Desired network performance

DEMONSTRATOR on Policy-Based SON Management Presented in Room SN22.2 during the next break!

POSTERS on the SEMAFOUR use cases

Presented during the next break in Room SN22.2

Don’t miss!


Thank you for your attention

www.fp7-semafour.eu


SON for Future Networks - VDE · PDF file2G/3G SON(LTE SON UNIFIED SELF ... KPI targets •...

Documents

Transcript of SON for Future Networks - VDE · PDF file2G/3G SON(LTE SON UNIFIED SELF ... KPI targets •...