Wcp - Failure Analysis Dashboard & Troubleshooting.pdf

Nemo WindCatcher Drive Test • Failure Analysis Dashboard • Troubleshooting

Updated April 21, 2017

Agenda 1. Failure Analysis Dashboard

Agenda

2. Troubleshooting

▪ Overview

▪ GSM Advanced Metrics

▪ Pre-Defined Analysis Tabs

▪ GSM Troubleshooting KPIs

▪ User-Defined Analysis Tabs

▪ UMTS Troubleshooting KPIs

▪ Summary tab

▪ UMTS Time-Series Troubleshooting

▪ Export to Excel ▪ Analysis Scenarios

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1. Failure Analysis Dashboard Purpose:  The ‘Failure Analysis’ Dashboard identifies the most important failure events in the drive and detects the root cause of those events  It classifies the failure by call-type & protocol and also pegs the events to the top 10 affected sectors

Overview: Failure Analysis Dashboard

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Failure Analysis Dashboard The ‘Failure Analysis Dashboard’ is split into 2 Analysis sections:  Pre-Defined Analysis Tabs: Under this category, we have identified all the key RF Level failure events (based out of RRC signaling), that would occur in the network and have classified them into 3 Orange Colored Tabs – Accessibility, Retainability And Mobility

 User-Defined Analysis Tabs: Under this category, we let the user configure their own analysis and save it into Blue Colored ‘User Defined Tabs’. After creating their Tabs, they can SAVE IT, USE IT for future analysis and SHARE IT with other Windcatcher Users

Failure Analysis Dashboard

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Failure Analysis Dashboard

Click on ‘Default Events’ to see the List of events that is evaluated by the tab

Pre-Defined Analysis Tabs

Accessibility: Failures encountered when the UE is accessing the network Eg: RRC Connection setup Failures, SIP Setup Failures, CS Call Blocked, etc

Mobility: Failures encountered when UE is performing handover Eg: LTE CSFB Failures, LTE intra/Inter Handover failures, SRVCC Failures, UMTS Handover failures, Hard/Soft handover Failures, etc

Retainability: Failures encountered when the UE has a call drop or an improper release Eg: RRC Connection Drops, SIP Session Failures, UMTS Call Drop, CDMA Drop Call, etc

Identifies the root cause, event and also pegs to the sector

Pre-Defined Analysis Tabs

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Failure Analysis Dashboard User-Defined Analysis Tabs

 User can perform their own analysis by creating User Defined Tabs and drag-n-drop events from the parameter tree to tab  Windcatcher would locate the events on map and will also peg the event to the sector  The Analysis tabs created by the user will be saved to the dashboard and will be available across datasets. User can share their analysis tabs with other users by exporting settings from Home  Settings Export Settings

Click on Configure Button to modify events that were added to the tab

User-Defined Analysis Tabs

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Failure Analysis Dashboard Summary Tab  Summary Tab provides a complete summary of all the key issues in the drive, by Device, Protocol and Call type Summary of  The information from the User-Defined Predefined Analysis Tabs gets updated to the Summary automatically

Summary of User Defined Analysis

Summary Tab

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Failure Analysis Dashboard Export to Excel

 The Summary can be exported to excel. Click on ‘Export Summary’ from the Summary Tab  The excel export shows a benchmarking view as well as a detailed view Export to Excel

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Failure Analysis Dashboard Analysis Scenarios I have performed the following analysis using the ‘Failure Analysis Dashboard’ In some cases, I have used the ‘Pre-Defined Tabs’ and in some cases I have created ‘User-Defined Tabs’ on the fly

1.

GSM/GPRS Failure Analysis

2.

UMTS Failure Analysis

3.

Nemo OTT Failure Analysis

4.

Nemo Drop Call Analysis

*’Pre-Defined Tabs’ are identified by ‘Orange Icons’ *’User-Defined Tabs’ are identified by ‘Blue Icons’

Analysis Scenarios

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Analysis Scenarios 1. GSM/GPRS Analysis

1.

The 4 events shown in the screenshot, were drag-ndropped from parameter tree to a new ‘user defined tab’

2.

The name of the tab was entered as ‘GSM/GPRS Analysis’

3.

Once the events are selected, I clicked ‘Save’

1.

The user can now see the distribution of events in the pie chart and also the sectors where these failures occurred

2.

The USER DEFINED TAB will be stored to windcatcher

Analysis Scenarios

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Analysis Scenario GSM/GPRS Analysis – The analysis performed by the user is now available as a ‘Summary’ – And can also be exported to excel

Analysis Scenarios

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Analysis Scenarios 2. UMTS Failure Analysis The UMTS Retainability Issues found in this drive includes, failures due to: 1. Strong Monitored Pilot 2. Poor Coverage 3. Missing Neighbor 4. Poor Pilot Dominance 5. WCDMA Abnormal Call End

Analysis Scenarios

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Analysis Scenarios 3. Nemo OTT Analysis The following events were dragged and dropped from the parameter tree to the ‘User Defined Tab’ : MY OTT ANALYSIS -

Nemo Data Task HTTP Aborted Nemo Data Task Facebook Connect Fail Nemo Data Task Youtube Fail Nemo Data Task Youtube Dropped Nemo Data Task Youtube Aborted

After I have configured ‘MY OTT ANALYSIS’ tab, I click on ‘Save’

Analysis Scenarios

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Analysis Scenarios Nemo OTT Analysis

Pie-Chart shows the distribution of all the OTT failures that occurred in his drive and also knows the sector where they occurred

This Analysis performed by the user is automatically updated in the summary and is also ready to be exported to excel

Analysis Scenarios

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Analysis Scenarios 4. Nemo Drop Calls – Root Cause Analysis

Pie-Chart shows the Root Causes for Nemo Drops that occurred in the drive

This Analysis performed by the user is automatically updated in the summary and is also ready to be exported to excel

Analysis Scenarios

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2. Troubleshooting GSM Advanced Metrics

Troubleshooting - GSM Advanced Metrics

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Troubleshooting GSM Troubleshooting KPIs

GSM Troubleshooting KPIs

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Troubleshooting UMTS Troubleshooting KPIs

UMTS Troubleshooting KPIs

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2. Troubleshooting

UMTS Troubleshooting using Time-Series SIR, CQI, App Throughput and Call Drop Events are plotted on the map The Active, Monitored and Detected Set Ec/Io is being monitored during the ‘WCDMA Call Drop Event’

UMTS Troubleshooting using TimeSeries

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