Netwoek opt seminar 2012

© 2001 TTG, Inc. 1/15

Comprehensive Network Optimization

© 2001 TTG, Inc. 2/15

• What is Optimisation?Finding an alternative with the most cost effective or highest achievable performance under the given constraines by maximizing desired factors and minimizing undesired ones.

• What happens when we add word: Comprehensive?

What is Optimisation

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Word of ‘Comprehensive’Large scope; covering or involving much more.

What are they?

•More KPIs definitions?•Better alarms monitoring?•Better monitoring?•Parameter monitoring?•What to monitor more?•More predictions?•Corellations? and what to corellate?•Mind - set.

Word of ‘Comprehensive

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Source: http://www.umtsworld.com

UMTS Network

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Measuring network performance

RNC3G

GGSN3G

SGSN

Node B

UTRAN Core NW External NW

E2E service quality,QoE

Network statistics from different counters and interfaces

Network Performance Monitoring& Optimisation

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3G KPIs Architecture

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Paging Success Rate

Some KPIs Example

Drop Call Rate

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Some KPIs Example

Call Setup TCH Congestion Rate Handover Success Rate

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Problem handlingTrouble report Problem data

Planned maintenanceCustomer QosManagement

Isolate and resolveService problems

Service Configuration

Other provider

NetworkMaintenance and restoration

Service affecting faults, Test resultsPlanned maintenanceScheduling notification Identify

Chronic failures

ServiceRedesignNecessary and Appropriate?

ReconfigurationCompletion

No

Yes

Service qualityManagement

Service configuration

Other provider

Problem handling

Service planning/ Development

Network MaintenanceAnd Restoration

Prepare and ProvidePerformance data

Problem data

Planned maintenance

Reconfiguration Request

Trouble report

Trouble clearedPlannedMaintenance

Negotiate/report Service

Design changes

Input Output

Service problem Indication Test request

Flow Chart of Problem Isolation and Measurements

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•Many suppliers•Thousands of elements•Thousands of connections•Thousands of KPI’s•Millions of handsets•Millions of Users•Billions of combinations

Network Components

•Coverage•Capacity•Call Reliability•Call Quality•Customer Service

Customer Metrics

•Corelarions with;•Statistic/subscriber measurment•Network Alrmas•Parameter changes

Diagnostic

Σ

The principal difficulty in managing the complex wireless network is that there’s no real-corellations measure of the desired end-result, customer satisfaction. That’s like trying to do speed without a speedometer.

TTG’s Solution•NORTH-I

•SxQM

•FAMAN

Solution

•Customer Perceived Call Quality•Customer Experience Index•Customer Satisfaction Index

Customer KPIs

Dashoards

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NORTH-I/DM

TTGNORTH-I

SxQMOSSOSS

OSS

M2000,U2000,Netact,OSS-RC, NetAct, OMCRs, etc...

ABID

Network

Current Statistic files. New OSS log files for parameter changes.When Anomaliy happens collect

NE and relevent NE alarms.Alarm Flag

Parameter ChangedFM

Measurment from Hand Set

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Wrap Up

• The for optimisation or achieving better network quality is to develop a good database which allows an operator to correlate network statistics, subsriber experiance, call detail records, alarms, external units, cell parameters, etc. using a single platform or platforms that can talk each other. Furthermore, it is also important for such a system to prioritise and alert the operator when potential problems are detected in the network. Continuous monitoring, ceaseless curiosity about what useful information the network can yield, and dynamic performance analysis infrastructures are a must for operators to improve network quality. This is also valid for 2.5G, 3G or any other G’s.

Netwoek opt seminar 2012

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