RAN Sharing & Reporting

David BensonPerformance Reporting Manager Telefonica O2 UK

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Agenda

A-Side: Introduction & Background

• Telefonica UK• Radio Networks Reporting Team • RAN Sharing Overview • Challenges of Reporting with RAN sharing

B-Side: PrOptima™ Implementation

• Defining the data we need • Data Exchange Mechanism• Enriching the Data• Reporting

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Telefonica O2 UK

O2 is the commercial brand of Telefónica UK Limited, a leading digital communications company with over 23 million customers.

O2 runs 2G, 3G and 4G networks across the UK, as well as operating O2 WiFi.

O2 has over 450 retail stores and sponsors The O2, O2 Academy venues and the England Rugby Union team.

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Network Reporting Team

• Focused on RAN performance; Drive Test and PM data.

• “End to End” PM activities – Develop metrics &reporting capability.– Run reports– Perform first level analysis of performance trends

• A long partnership with MYCOM OSI • Telefonica O2 UK and MYCOM OSI headquarters are in the

same UK town!)

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Project Beacon - RAN Sharing

• What?RAN Sharing with Vodafone (MORAN)(Multi-Operator Radio Access Network

• Where?UK Share 2G, 3G, 4G

=>West (Vodafone)=>East (Telefonica)

London Share 4G =>North (Telefonica)=>South (Vodafone)

• Why?– More cells for customers– Less cell sites (in total)– Better coverage & capacity– LTE Roll Out

• When?– Began late 2012. – Rollout continues until 2017

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Project Beacon - Telefonica Ownership Areas

GSMUMTSLTE(UK –excluding London)

LTE(London)

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Project Beacon Telefonica Ownership UK

Logical Area Summary & Terminology

Owner Legacy/Beacon Network Cell_Owner PM Stats visibility for TEF

Telefonica Legacy Telefonica TFinTF 100%

Telefonica Beacon Telefonica TFinTF 100%

Telefonica Beacon Vodafone VFinTF 100%

Vodafone Legacy Vodafone VFinVF None

Vodafone Beacon Vodafone VFinVF None

Vodafone Beacon Telefonica TFinVF ?

“Network” “Operated By”

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The Challenges (Cultural)

• Partnerships & alliances are increasingly common but working with a major competitor is an interesting experience.

• (Initial) confusion from PM reporting customers…“What was last weeks traffic?” “when you say traffic do you mean, our traffic”“Yes!” “Does “our traffic” mean the traffic we manage or the trafficour customers generate?”“Can you repeat the question please!”

• Need to build networks, systems and trust!

• New confidentiality and legal obligations

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The Technical Challenge

Agree What to Exchange

Build Exchange Mechanisms

Enrich the Data

Build Reporting Capability

Report

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Data Exchange – What to Exchange?

• What PM data to share, how and when?

• Initial “what” discussions - two extremes- Exchange everything – (direct OSS feeds)- Exchange only contractual KPIs

• Agreement to exchange a small number of KPIs - Help build trust and confidence in partners SLA

reporting - Enable national reporting on all OUR customers’

experience- Support SLAs with corporate customers- Help with optimisation

RAN SHARING

FORBEGINNERS

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Data Exchange – The Agreement

• To align these measures across the TEF and VF RAN vendors we needed agreement on formulae…

We exchange the calculated KPI not the raw

counters

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Data Exchange - Sending The Data

24 hourly files per Technology

Filters VFinTF data

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Data Exchange - Receiving The Data

Data files(.csv) receivedone per hour per technology. (Not direct from OSS so latency worse than other RAN interfaces)

Spare Slots

Numerator/Denominator

3 New Adaptors

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Data Exchange – Loading The Data

• Spare slots give in-house capability to map additional counters that are added to the input .csv file.

• We anticipated the need for flexibility but underestimated the extent of change - schedule currently @ Version 36

• 70 ‘KPI’s slots – increased recently to 300 slots per technology.

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TFinVF ‘Stand Alone’ Reporting

Prefix – S12,T,V

Simple report taking ‘raw’ 2G data

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TFinVF Data + CM data

We add CM data to the RAN interfaces already. This was extending for RAN sharing.

2G Cells Ref

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TF Customer View Reporting

TFinVF Vendor from CM data

Cell_Owner field added

JVID – Common to both operators

Report showing cells for a City with both TFinTF and TFinVF cells

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TEF Hosted Networks Reporting

Report showing a shared Telefonica owned 2G site with both TF & VF Cells

VFinTF sites Have ‘V’ prefix

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Reporting Capability – Mapped Metrics

With two radio vendors (pre-RAN share) we used mapped

metrics; the addition of TFinVF data (JVCO) means we now have three ‘vendors’ in key formulae.

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The Problem of Disappearing Cells @ NE Lists

Routine performance monitoring & Beacon roll-out means we scrutinise the performance trends in Cities and Towns ….

…..the Beacon Roll out gave us a problem…….

….Using lots of Dynamic NE lists

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Reporting Capability – Disappearing Cells @ NE Lists

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Reporting capability – The problem with NE lists

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Reporting Capability – Disappearing Cells @ NE Lists

Dynamic NE lists do not include these “Inactive” or “Disabled” sites

In this example a query run in week #25 will not include these cells. (A previously reported value cannot be replicated)

The SolutionUse the GIS system to create NE lists; with a MYCOM OSI modification so all sites including NE_STATUS “Inactive” and “Disabled” will be included in the list.

The Problem

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Summary – The Good & The Bad

The Good• Changing the export file is simple. • The “adaptive adaptor” also makes a change to the import easy to implement.• Mapped Metrics enable network wide reporting.• We now have a good understanding of RAN sharing.

The Bad• Life is more complicated!• More Adaptors to manage. • Missing data (in either direction) needs manual intervention.• Troubleshooting data issues is slow.• The ‘more KPI’ requests keep coming. • NE lists generation still not proven.

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