Era Day3 Part1

Monitoring and Troubleshooting
Mobile Networks
Ericsson RAN Analyzer

(DAY 3-PART1)
@ Ericsson AB 2016 | Ericsson RAN Analyser basic functionalitites | LZU1089600 R1A | 2016-01-01 | Page 1
TABLE OF CONTENTS
COURSE CONTENT (30h)
– DAY 1 (6h)
 ERA environment (1H)
 Installation of the solution (3H)
 OSS Data Gateway configuration (2H)
– DAY 2 (6h)
 Trace Processing Server & ERA configuration (2H)
 Ericsson RAN Analyzer basic functionalities (4H)
– DAY 3-4 (13h)
 Generic troubleshooting use cases (4H)
 GSM and UMTS specific troubleshooting use cases (4H)
 LTE specific troubleshooting use cases (4H)
– DAY 5 (5h)
 ERA advanced usage (3H)
 Self-Assessment (1H)
 Practice and Doubts (1H)
STATE OF THE ART
ERICSSON RAN ANALYZER
STATE OF THE art
› RAN Analyzer (ERA) – EDOS-DP 16.1 SW Release 16.1:
– Support of Ericsson LTE L16A version (TS module)
– Support of Ericsson 3G W15B version (TS module)
– Support of Ericsson LTE L16B version (GEO module)
– Support of Ericsson LTE CTR streams (GEO module) (*)
– Support of Huawei LTE NBI flat format CM data (TS module)
– Propagation delay information from PM data for Huawei 3G (TS module)
– Missing neighbour analysis from PM data for Huawei 3G (TS module)
– Query builder sample queries for 2G & 3G neighbor audit (TS module)
– Some KPIs definition improvements for Nokia & ALU LTE (TS module)
– ….
› EDOS – DP Portal:
https://ericoll.internal.ericsson.com/sites/SDPT/default.aspx#300
› ERA Portal:
http://toolsportal.internal.ericsson.com/index.php?option=com_k2&
view=item&id=532&Itemid=0
GENERIC
TROUBLESHOOTING
USE CASES
Chapter OBJECTIVES
After this chapter the participant will be able to:
6. Deliver generic troubleshooting use cases:
6.1 Perform user defined alarms.
6.2 Perform missing neighbors detection.
6.3 Perform worst offenders detection/grouping.
6.4 Perform smartphone/device analysis.
6.5 Perform top N IMSIs.
6.6 Perform VIP call analysis
6.7 Perform swapped sectors
6.8 Perform RF distributions and maps
6.9 Perform network audit
6.10 Perform overshooting analysis
6.11 Perform Timing Analysis
TABLE OF CONTENTS
DAYs 3 – PART1
› Generic Troubleshooting Use Cases.
– Perform user defined alarms.

– Perform missing neighbors detection.
– Perform worst offenders detection/grouping.
– Perform smartphone/device analysis.
– Perform top N IMSIs.
Troubleshooting
– Perform VIP call analysis.
Radio KPIs Monitoring
Audit
Use Cases
Configuration
ERA Generic Troubleshooting
 Perform user defined alarms.
 Perform missing neighbors detection.
 Perform worst offenders detection/grouping.
 Perform smartphone/device analysis.
 Perform top N IMSIs.
 Perform VIP call analysis.
ERA user defined alarms
User defined alarms
› Ericsson RAN Analyzer includes a feature to detect those
cells whose operation is out of the user defined ranges.
› ERA shows how frequent an under-performing cell is

overcoming the thresholds and then state that there is a
clear symptom of malfunction.
User defined alarms
› The execution of this analysis can be done automatically by the
Scheduler. The output will be find at User-Def. Alarms:
› Or manually launched by the user through the 'User Defined Alarms'

setting on the Edit > Execute > 2G/3G/LTE Audit (same output):
User defined alarms
› The defined thresholds can be set and edited by the user. Once it is
done, a new analysis can be performed.
› Editable only if Administrator Profile.
ERICSSON RAN Analyzer
USER PATH
› User home path:
– Path where configuration files and logs are stored. Usual folder (it can be edited):
.\Users\<Windows_User>\AppData\Roaming\Ericsson\*_Ericsson RAN Analyzer\Default
User Home\
› Files stored in User home:
– Configuration Files: GIS settings, Docking,…
– Log Files,
– Project Files: layer management configuration…
› All the users must have read/write permissions in the User Home
folder.
User defined alarms
› Sectors non fulfilling the user defined thresholds are highlighted in
a detailed report (pivot format, grid, and GIS). Pivot Format:
User defined alarms
› Pivot Format:
User defined alarms
› GIS interface:
User defined alarms
› GIS interface:
User defined alarms
› Sector Browse LTE/3G/2G:
User defined alarms
› Sector Browse LTE/3G/2G – Synchronization with GIS:
User defined alarms
› Do not get confused with OSS alarms.
USER DEFINED ALARMS
› For some reports, it is necessary to have executed the
Optional Features during the Operdb importation phase:
User Defined Alarms, Input Data Validation, Network
Consistency, Layer Management …etc.
› In case these features were not selected during the

Operdb importation phase some of the reports might not
be available. Remember that if had happened, the audits
can be run after the importation phase is finished too.
Edit > Execute > 2G/3G/LTE Audit
Exercise 14:
USER DEFINED ALARMS
Exercise 14:
USER DEFINED ALARMS
› Answer.
Missing Neighbors
3G Missing neighbor
› Based on the UE Measurements Reports within call traces,
ERA includes the 3G Missing neighbors report.
› Worst Offenders: sectors ranked based on:
– #reported missing neighbors or #drops due to missing neighbors.
› Grid report: with different tabs for intra-frequency, inter-
frequency and inter-RAT pair of sector missing neighbors.
3G Missing neighbor
detection
› Cells that may be affected by a wrong adjacency plan are
detected with this feature.
› Grid report shows every pair of sector-missing neighbors
(INTRA, INTER, iRAT) along with some relevant information
call traces based:
– Distance, number of events that reported that missing neighbor,
the average received RSCP and EcNo, etc.
– Inter-frequency and inter-RAT missing neighbors
tabs include if the proposed missing relations are
allowed according to Layer Management settings
or not.
3G Missing neighbor
detection
› Missing Neighbors – Grid Format:
3G Missing neighbor
detection
› Missing Neighbors – Grid Format:
3G Missing neighbor
detection
› Missing Neighbors Worst Offenders Report (Call Traces):
– #reported missing neighbors or #drops due to missing neighbors.
3G Missing neighbor
detection
› Worst offender cells in terms of total number of missing neighbors or in
terms of number of Intra-Freq, Inter- Freq, ...
› Direct group creation allowed.
› Show in map cells.
› Filter according to Layer Management rules.
3G Missing neighbor
detection
› Missing neighbor information can also be shown on the
GIS for 3G. Call Traces – Adjacency raster:
3G Missing neighbor
detection
3G Missing neighbor
detection
3G Missing neighbor
detection
› Intra, Inter, iRAT, or all at the same time.
4G Missing neighbor
detection
› Problematic Calls (missing neighbors).
4G Missing neighbor
detection
› Call Details info.
4G Missing neighbor
detection – ONE WAY
› Consistency Check (One Way HO):
– GIS
– Report (Network Audit)
Exercise 15
WORST OFFENDERS
Estimated time: 15 min
1. 3G - Display in the GIS the sectors with missing

neighbors (inter-freq) on the 21st.
2. 3G - Display those the sectors with missing
neighbors (inter-freq) on the 21st with their
recovery suggestions.
3. 3G – Go to Top N missing neighbors, order them
by the number of drops, display them on the GIS
.
WoRST OFFENDERS
WORST OFFENDERS
detection/grouping
› The user is able to obtain a ranked list of those top N
groups of cells and cells with the worst values in terms of
Key Performance Indicators in any of the different
measurement periods of the day selected by the user.
› The analysis is available under 2G/3G/LTE Reports >
Root Cause Analysis > Worst Offenders > Sector/Group.
WORST OFFENDERS
detection/grouping
› Worst offender Groups in terms of KPI
› Group Performance to link with Accessibility, Mobility,
Retainability and Throughput Worst Offenders.
› The user will be able to configure multiple settings in order to
customize the report as much as possible (user defined alarms).
Worst offenders SECTORS
detection/grouping
› Worst Offenders - Sector feature:
Ranked list of Worst Offenders sectors:
› … in terms of radio KPIs
› … for a given date
Create Worst Offender Groups.
Show the Group into the Map.

Worst offenders SECTORS
detection/grouping
Bad performance indicators

because of low statistical
representation can be filtered out.
See the KPI Historical

Evolution.
› From Date to Date
Worst offenders
detection/grouping
› Worst Offenders group created: can be managed and re-configured.
Worst offenders
detection/grouping
› Worst Offenders group created: can be selected for Report and GIS filters.
Worst offenders
detection/grouping
› Worst Offenders group created: can be selected for Report and GIS filters.
Worst offenders GROUPS
detection/grouping
› Worst Offenders – Group feature:
– List of the Top N groups in terms of KPIs.
– Ranked List of Worst Group Offenders in terms of

the KPIs selected.
› Same as the Top N Sectors but by Groups.
ERA-PM REPORTING
WORST OFFENDERS
Worst offenders
detection/grouping
› Worst Offenders – Call Traces based (Top N Sector):
Worst offenders
detection/grouping
› Worst Offenders – Call Traces based:
– Linking with Device Analysis, 3G Traffic Class/4G Service Type.
GROUP PERFORMANCE
› LTE Groups Performance provides a first dashboard to
detect worst offenders groups per KPI.
› User can select main KPIs to show.

GROUP PERFORMANCE
› LTE Groups Performance provides a first dashboard to
detect worst offenders groups per KPI.
ERA - ACCESSIBILITY
WORST OFFENDERS
Group Selection (to WO Offenders WO Offenders day
identify WO for one filters to analyze
particular district or
zone)
CM,PM & CTR info
WO Offenders
Sectors
ERA – RETAINABILITY
WORST OFFENDERS
Worst Offenders
Worst Offenders filters date to analyze CM PM & CTR info
Group Selection
(to identify WO for
one particular district
or zone).
Worst
Offenders
Sectors
ERA – MOBILITY
WORST OFFENDERS Worst Offenders
Worst Offenders filters day to analyze
Group Selection
(to identify WO for
one particular district
or zone)
Worst
Offenders
Sectors
Worst
Offender
Adjacency
ERA – THROUGHPUT
WORST OFFENDERS
Group Selection WO Offenders filters WO Offenders day
(Min DL Traffic, #Top to analyze
(to identify WO for one particular
Ecell and UEs…)
frequency, district or zone)
WO Offenders
Sectors
Exercise 16
WORST OFFENDERS
1. Detect the sector with the highest number
of drops in the network for the 27th in
terms of performance.
2. Detect the performance group with the
higher number of drops for the 27th.
Exercise 16:
WORST OFFENDERS
1. Link with the retainability report to display the
worst offenders sectors of that group? Which is
the top worst offender of that group?
2. Detect the 10 sector with the highest number of
drops in the network for the 27th call traces.
3. Is the worst offender of the group selected
included in the 10 top worst offenders based on
Call Traces?
Worst offenders
detection/grouping
› 2G/3G/4GTop N Sectors – Problematic Calls Call Traces based:
3G Worst offenders
detection/grouping
› 3G Top N Sectors – Missing Neighbors:
3G worst offenders
detection/grouping
› 3G Top N Sectors – Pilot Polluter:
3G worst offenders
detection/grouping
› 3G Top N Sectors – Capacity Statistics:
Exercise 17
WORST OFFENDERS
1. 3G Detect the Top N pillot polluters
2. 4G Detect the Top N sector with more access failures.
3. 4G Detect the Top N sector with more problematic
calls and the histogram chart of its reason.
SMARTPHONE ANALYSIS
Smartphone/device
analysis
› Help the user to identify problematic UE terminals and models
based on different KPIs.
› Based on Call Traces: CTR and CTUM needed for 4G.
› GPEH with INTERNAL_IMSI event activated needed for 3G.
› Most of the Smartphone Analysis features are accessible

through the 2G/3G/4G LTE Call Analysis Ribbon Bar.
Smartphone/device
analysis
› Market Share provides the distribution of devices in terms of
device type, manufacturer and models.
› MMP Load (3G) provides the effect on the network load that
every different type of user (smartphone, PC…) generates:
– Currently it shows the number of event produced by each model (not the
MMP Load associated).
› UE Type provides stats and performance at group and/or
sector level based on UE Types (smartphone, tablet, PC…).
› Top UE Model provides a detailed analysis of models in terms
of different performance metrics (availability, retainability ...).
Smartphone/device
analysis
› LTE Call Analysis > Market Share Analysis provides the penetration of different
UE types, Manufacturer Distribution and Top N UE models. Traces based.
› Network UEs Distribution (not easily provided by the customer),
Smartphone/device
analysis
› 3G Smartphone Analysis > Market Share Analysis provides the penetration or
distribution of UE terminals used during the calls carried out during the
collected measurement periods.
Smartphone/device
analysis
› The Market Share charts are based on the raw data which Grid data
Market Share contains.
Smartphone/device
analysis
› Overall and per sector performance comparison of UE Types
can be performed for main KPIs at UE Type Analysis.
› Based on the call traces (CTR + CTUM for 4G, GPEH

(INTERNAL_IMSI) for 3G), it is possible to calculate a precise
calculation of KPIs for every UE Type (Smartphone, tablet,
HandHeld, PC…). Traces based.
› The common KPI list for all the supported vendor is the
following: number of calls, number of access failures, number of
drops, number of iRATs, Call Setup Success/Failure Rate and
Dropped Call Rate.
Smartphone/device
analysis
› Overall and per sector performance comparison of UE Types can be
performed for main KPIs at UE Type Analysis (Handheld, PC…).
Smartphone/device
analysis
› Chart data UE Type and Model Analysis is based on the raw data the
Grid data UE Model Analysis raw data contains.
Smartphone/device
analysis
› Raw data per terminal is also provided through:
Menu > Smartphone Analysis > UE Type and Model Analysis > Grid
Table.
Smartphone/device
analysis
› UE Performance comparison. Reviews Top N UE models for
given KPIs:
– 4G: Calls, User Throughput , Latency, Retransmissions, Retainability…
– 3G: Access PS Calls, FACH & HS Erlangs, Channel Switching, SHO, …
Smartphone/device
analysis
› 3G User Throughput tab example.
Smartphone/device
analysis
› 3G FACH and HS Erlangs tab example.
Smartphone/device
analysis
› 3G Retainability tab example.
Smartphone/device
analysis
› 3G MMP Load: The event distribution is provided and the event
distribution produced by each UE model (not the load produced).
› Some filters are available to differentiate among different views.
Smartphone/device
analysis
› 3G Event Distribution:
Smartphone/device
analysis
› 3G UE Model Event Distribution:
Smartphone/device
analysis
› 3G MMP Load: Raw data of event distribution is provided in grid table.
device analysis – TRAFFIC
CLASS
› Analysis of performance for different types or services can be retrieved
through 3G Traffic Class Analysis.
device analysis – SERVICE
TYPE
› Analysis of performance for different types or services can be retrieved
through 4G Service Type.
device analysis – CALL
STATISTICS
› LTE Call Analysis for specific type of terminals/Service Type may be
obtained through LTE Calls Statistics.
device analysis – CALL
STATISTICS
› 3G Call Analysis for specific type of terminals/Service Type may be
obtained through 3G Calls Statistics.
device analysis –
PROBLEMATIC CALLS
› Problematic Calls Report for specific type of terminals/ Service
Type may be obtained through LTE Problematic Calls Menu.
device analysis –
PROBLEMATIC CALLS
› Problematic Calls Report for specific type of terminals/ Traffic Class
may be obtained through 3G Problematic Calls Menu.
device analysis – CUSTOM
RASTER
› 3G Drop/Block Location for specific type of terminals/RABs may be
obtained through Problematic Calls Report and create Custom Raster.
device analysis – CUsTOM
RASTER
› 4G Drop/Block Location for specific type of terminals/termination
reason/termination status may be obtained through Problematic Calls Report.
We can create a Custom Raster.
device analysis – CUSTOM
RASTERS
› 4G Custom Rasters allow not only the termination of the calls but also
the RSRP and RSRQ rasters for either problematic calls or specific
users (eg.VIP users). Custom Rasters are available in Layers.
CUSTOM RASTER
› 3G Custom Rasters allow not only the termination of the calls but also
the EcNo and RSCP rasters for either problematic calls or specific
users (eg.VIP users). Custom Rasters are available in Layers.
Exercise 17:
CUSTOM RASTER
1. Display the Time Evolution of all Problematic

Calls per Frequency Carrier.
2. Display the Chart of the Call Drops Termination
Reason of that Frequency Carrier.
3. Generate a Custom Report of the RSRP values
for that carrier.
4. Display the RSRP Custom Report generated in
the GIS map.
IMSI/IMEI ANALYSIS
Subscriber ANALYSIS
IMSI/IMEI ANALYSIS
› IMSI/IMEI analysis: Deep analysis for certain users can be performed
based on IMSI/IMEI Analysis.
› This report, as within Problematic Calls, allows the analysis of the calls of a
certain user identified either by its IMSI or IMEI. Most Problematic users.
› It provides a list of the users’ calls and the capability to know basic information
about them.
– For each of the calls it is possible to check the signaling, throughput, reported radio
conditions, and if geolocated, the path followed.
– Statistical data Charts also displayed.
› Usually to deepen the analysis for VIP users, worst users and/or check user
complaints (confidential).
Subscriber ANALYSIS
IMSI/IMEI ANALYSIS
› Per UE KPI analysis for a time frame.
– CTUM and CTR needed for LTE.
Subscriber ANALYSIS
IMSI/IMEI ANALYSIS
› Per UE KPI analysis for a time frame.
Subscriber ANALYSIS
TOP IMSI ANALYSIS
› Top IMSI Analysis reports is accessible through the Subscriber Analysis
section.
› These reports provide the possibility to check individual users or TOP N users
of problematic calls (Access Failures, Drops, iRAT), its distribution and the
services which may have been affected the most. Which users had a higher
number of problematic calls (Blocks, Drops, IRAT). The distribution of them.
– The analysis can be restricted in terms of cell, group of cells, traffic class, and type of
terminal.
– Note that synchronize with GIS may provide an easy way to check if bad
performance of a cell is only related to a specific user behavior.
– Which services and APN may have been affected the most.
Subscriber ANALYSIS
TOP IMSI ANALYSIS
› Per UE type and KPI for a time frame: top N users.
Top IMSI analysis
› The analysis can be
restricted in terms of cell,
group of cells, traffic class,
and type of terminal.
› Synchronize with GIS may
provide a very easy way to
check if bad performance of
a cell is related only to an
specific user behavior.
VIP CALL ANALYSIS
VIP call analysis
› This report, as within Subscriber Analysis, allows the
analysis of the calls of a certain user identified either by its
IMSI or IMEI.
› It provides a list of the calls of the VIP users and the
capability to know basic information about them.
VIP call analysis
› VIP UE KPI analysis for a time frame. Chart view.
VIP call analysis
› Per UE KPI analysis for a time frame. Call signaling can also be displayed.
 Statistical Analysis
 Call Statistics
 Problematic Calls
 Top N Sectors
 RF Raster Maps
STATISTICAL ANALYSIS
ERA CALL ANALYSIS
CALL STATISTICS
› Provide Stats at Group and Sector level extracted out of CTR:
ERA CALL ANALYSIS
CALL STATISTICS
› User Plane Traffic KPIs.

› Performance: DCR, Access
Failure %, CSSR.
› Handover: iRAT, LTE Time%.
› Latency related KPIs.
Statistical analysis
› Most probable failure causes coming from traces info are:
– Dropped Calls Reasons.
› Detailed dropped calls reasons per terminal type, manufacturer,
model,...
› Detailed dropped calls reasons per Rab Type, Traffic class,…
› Other reason.
– Blocked Calls Reasons:
› Detailed reason per channel type.
› Detailed reason per service.
› Other reasons.
Statistical analysis
› Analysis of worst offenders and probable causes are
coming from traces info. There are mostly two available
checks:
– Top N Sectors Analysis: Shows the sectors that have a higher count
of problematic calls (Drop/Block/IRAT).
– Problematic Calls Analysis: Shows the problematic calls and
different possible charting visualization for some of the key that
allows analysis based on filtering.
ERA CALL ANALYSIS
PROBLEMATIC CALLS
› After processing CTR with TPS, and importing them in
ERA, the engineers have available a set of features.
– Problematic Calls - Summary Charts, trends, pivot table and
detailed grid of Access Failures, Drops and iRAT.
– Call Statistics – KPI values obtained out of CTR events.
› Geo-location .
› Raster maps.
› Call analysis.
ERA CALL ANALYSIS
PROBLEMATIC CALLS
› Call Statistics – KPI values obtained out of CTR events.
– Geo-location based analysis can be done:
› To Geo-locate problematic calls in an area.
› To Geo-locate problematic calls for a particular sector.
› It may even be filtered by particular UE type/model, IMSI, RAB.
– Raster maps:
› RSRP, RSRQ, Dominance, SINR, Throughput, Drop Reasons,
Latency, CQI, Best Server…
– Call analysis coming from CTR:
› Drill down analysis of the calls messages to identify drop/access
failure/iRAT causes coming from CTR + further analysis made by
the tool to explain the root cause (interference, coverage issue,…).
› Check the Last RSRP & RSRQ measurement sent by UE.
ERA CALL ANALYSIS
PROBLEMATIC CALLS
› Provide Stats at Group and Sector level extracted out of CTR:
Problematic Calls - Trends
ERA CALL ANALYSIS
PROBLEMATIC CALLS
› The behavior of Drop/Blocks per terminal type can be also analyzed. The Problematic
Calls Analysis report with an specific filtering need to be used for that.
Problematic Calls - Distribution Charts
ERA CALL ANALYSIS
PROBLEMATIC CALLS
Problematic Calls - PIVOT Reports
ERA CALL ANALYSIS
PROBLEMATIC CALLS
Problematic Calls - Grid Table
ERA CALL ANALYSIS
PROBLEMATIC CALLS
ERA CALL ANALYSIS
PROBLEMATIC CALLS
ERA CALL ANALYSIS
DRILL-DOWN – EXAMPLE
› Using Call Details feature single problematic in the problematic call
grid table calls can be analyzed and displayed in GIS
– (Geo-Located Maps – Detailed - On Demand)
ERA CALL ANALYSIS
DRILL-DOWN – EXAMPLE
› Using Call Details feature single drop can be analyzed
RSRP level
moves down until – 115 dBm
RSRP & RSRQ evolution during the call

(recording UE_MEAS_INTRAFREQ1 periodic event
improve the visibility of the UE measurements trend )
Call signaling available for further troubleshooting
Exercise 18:
DETAILED PROBLEMATIC CALL
ANALYSIS
1. Display the Messages Sequence of a Call that

ended into a Drop.
2. Display the Trace Content of a RRC_Connection
Reconfiguration Message.
3. Display the Drop in the GIS Map.
ERA CALL ANALYSIS
TOP N SECTOR
› Provide Stats for Top N sectors/sector according to criteria. Some
distribution information in overall view and per sector in relation to traffic
class and termination reasons can also be shown
ERA CALL ANALYSIS
TOP N SECTOR
› Provide Stats for Top N sectors/sector according to criteria.
ERA CALL ANALYSIS
TOP N SECTOR
› Top N List for type of
problematic call.
› Global & Individual
Charts: Service type,
call termination, Term.
Reason, Bearer type.
ERA CALL ANALYSIS
TOP N SECTOR - GRID TABLE
› The Call Statistics and Top N Sector Reports are based on the data
contained in the “Call Statistics” grid table.
Exercise 19:
TOP N SECTORS
1. Display the Top N Sectors with LTE calls

terminated into an iRATs HO.
2. Say the number of Problematic Calls of each
one.
3. Display the Detailed Termination Reason
Histogram for all the Calls that terminated with
an iRAT HO.
 Statistical Analysis
 Call Statistics
 Problematic Calls
 Top N Sectors
 RF Raster Maps
RF RASTeR MAPS
ERA CALL ANALYSIS
RASTER MAPS
› Raster maps for RSRP, RSRQ, Dominance, best server, SINR…
– Rasters can be plotted for all area or particular sectors.
– Time periods, subnetworks, carriers can be filtered in GIS Data filter.
– Examples in this slide are overall: RSRP, Best Server PCI & Dominance.
ERA CALL ANALYSIS
RASTER maps
› Selecting the raster maps related to Dropped /Access Failures/iRAT
Calls per sector all the drops recorded for one particular sector will
be shown in GIS.
Era CALL ANALYSIS
raster map
› Virtual drive RSRP/RSRQ Raster Map for this particular sector can
be shown in GIS to check the RF conditions measured by UEs for this
sector.
Good RSRP values close to the sector but not

really good RSRQ on this area
Era CALL ANALYSIS
raster map
› Virtual drive RSRP/RSRQ Raster Map for a particular sector can be
shown in GIS to check the RF conditions measured by UEs for this
sector without needing drive tests. Combined with TA stats, the GIS
layer provides valuable information for initial tuning and optimization.

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Monitoring and Troubleshooting

Ericsson RAN Analyzer

› Generic Troubleshooting Use Cases.

– Perform user defined alarms.

ERA user defined alarms

› ERA shows how frequent an under-performing cell is

› Or manually launched by the user through the 'User Defined Alarms'

› In case these features were not selected during the

1. 3G - Display in the GIS the sectors with missing

Create Worst Offender Groups.

Show the Group into the Map.

Bad performance indicators

See the KPI Historical

– Ranked List of Worst Group Offenders in terms of

› User can select main KPIs to show.

› Most of the Smartphone Analysis features are accessible

› Based on the call traces (CTR + CTUM for 4G, GPEH

1. Display the Time Evolution of all Problematic

VIP CALL ANALYSIS

› Provide Stats at Group and Sector level extracted out of CTR:

› User Plane Traffic KPIs.

› Provide Stats at Group and Sector level extracted out of CTR:

Problematic Calls - Trends

Problematic Calls - Distribution Charts

Problematic Calls - PIVOT Reports

Problematic Calls - Grid Table

Problematic Calls - Grid Table

Problematic Calls - Grid Table

RSRP & RSRQ evolution during the call

Call signaling available for further troubleshooting

1. Display the Messages Sequence of a Call that

1. Display the Top N Sectors with LTE calls

Good RSRP values close to the sector but not

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