GERAN/RAN/eRAN Optimization and Troubleshooting

Tools Set

Egor Martiniuc

How to maintenance and improve network quality

Level 3

Network

development

Evaluation

& expansion

10 % of all Engineering Time

1. Network E2E evaluation

2. Expansion proposal

3. New feature introduction

Level 2 Troubleshooting

Level 1

Foundational Audit

Troubleshooting & assurance 30 % of all Engineering Time

Monitoring & Audit 60 % of all Engineering Time

1. Worst cell analyze and

troubleshooting

2. VIP zone, VIP user care

3. User analyze and troubleshooting

4. QoE improvement

5. Key event assurance

1. Coverage optimization

2. Parameter routine audit

3. Alarm monitoring and resolved

4. Capacity monitoring and audit

5. KPI monitoring and report

6. Neighbor cell/PSC audit & optimization

7. Interference monitoring and test

Tools

Tool Name Level

LTE Configuration Control 1, 2

3G Handover Optimization - SON 1

MapInfo Application For Optimization 1,2,3

Optimization GIS Calculator ( Coverage, Distance, Azimuth Intersection) 1

Cell Propagation Delay 2

Redirect To Table 1,2

Counter View 2

Oracle/MSSQL Based server for M2000 Counters History Collection 2,3

Dimensioning Reporter (HUAWEI, M2000 Base) 3

M2000 KPI/Counter Trouble Alerter (Mail, Client Application) 1,2

GERAN/RAN/eRAN Parameter Control and Compare (Global, Unit Level) 1

RNC Parameters Change History 1,2

NodeB Synchronization control 1

Microwave Monitoring Tool 1

LTE Configuration Control (1/4)

Features : 1. Bulk of eNodeB System Configuration

Easy full Network configuration control Export single eNodeB (all Network) in MML Format Parameters Comparison between network elements

2. Inventory Configuration Export Element BarCodes, System Boards

3. Report generation Mismatch configuration find (PCI, TAC, One way HO, Empty HO, Missing HO, Missing X2, Extra X2 …) Integration with MapInfo tool set Mismatch configuration parameters UMTS Vs LTE

Coming soon: LTE Template Configuration Check

Description: Application has several options to update self database. Also use CFGMML from UMTS RNC and inventory Export

from M2000. You can use M2000 connection to have update the system data. Base on this data application prepared to make reports. Friendly user Interface.

LTE Configuration Control (2/4) Bulk of eNodeB System Configuration

LTE Configuration Control (3/4) Parameters Comparison

LTE Configuration Control (4/4) Inventory

3G Handover Optimization - SON (1/4)

Features : 1. Report generation

Missing IntraFrequency Handover detection (based on M2000 hidden counters). Useless IntraFrequency Handover detection (based on M2000 hidden counters). One way IntraFrequency Handover detection.

2. RNC Batch command execution Automatic RNC Batch command generation for selected Handover relations. Handover relation ranking. Automatic Troubleshooting of batch execution conflicts.

Coming soon: 3G -> 2G Handover Optimization Features.

Description: Application uses odbc driver for M2000 database direct connection. All necessary counters are

copied to local database for further post processing in order to not load M2000 server. RNC configuration file (INNERCFGMML) and 3G cells file (GEO data) are imported to local database through the same application. After all inputs processing the handover report is generated base on user defined statistic period.

3G Handover Optimization - SON (2/4) Report Generator GUI

3G Handover Optimization - SON (3/4) Report Example Missing IntraFrequency

3G Handover Optimization - SON (4/4) Batch command generator

1. HO relation input (EXCEL File)

2. Status of progress

3. Final report and Batch Commands

Features :

Main concept - Centralized Control System (CCS)

Display 4G/3G/2G cells on map base on Radio Design data ( Long, Lat, Beamwidth, Azimuth, Frequency )

Display on Map INTRA/INTER/INTERRAT Neighbor relations ( based on RNC configuration File [INNERCFGMML] )

Get KPI Data directly from M2000/Nastar/PRS/Other Servers.

Display KPI Data Creating Thematic Maps

Quick Cell/Site search base on user defined parameter

Quick Tool optimization according to user preferences

Coming soon:

Automatic batch command generation for new user defined handover relation.

Description :

MapBasic based Application uses Radio Design and BSC/RNC/eNodeB configuration data. Allows quick troubleshooting of worst KPI cells, Neighbor Relations through friendly user interface

MapInfo App For Optimization (1/3)

MapInfo App For Optimization (2/3)

App buttons

MapInfo application GUI

MapInfo App For Optimization (3/3) Intra Frequency Handover Relation View

Optimization GIS Calculator (1/3) Features :

GEO Data based Handover analysis.

Useless handover relation detection.

Missing handover relation

BCCH/PSC/PCI collision detection.

Terrain GEO data automatic download from Google Map Server.

Coming soon:

Map Info Integration.

Description :

The application uses GEO information of GERAN/RNC/eRAN cells. Base on imported data tool calculates predefined coefficients in order to detect missing or useless handover relations, and BCCH/PSC/PCI collisions . All estimation are base on geometrical calculation without tacking into account radio propagation model.

calculated coefficients are:

Main Beam intersection Point.

Ratio of coverage overlap.

Inter cell distance.

Cell Radius.

Number of sites between Neighbors.

Optimization GIS Calculator (2/3)

Example PSC collision report

Optimization GIS Calculator (3/3)

Example of report

Cell Propagation Delay (1/2) Features :

Paint User distribution per Propagation Delay on GUI

Paint Ec/No per Propagation Delay on GUI

Good for User complains troubleshoot

Cell coverage optimization

Coming soon:

LTE propagation delay

Description :

The application is directly connecting to M2000 server. Get statistic by selected counter and put it in the chart.

Cell Propagation Delay (2/2)

GUI

Redirect To Table (1/2) Features :

Reading M2000 Redirection/ Task Files

Dump for readable format

Mismatch LTE configuration report from M2000 task file.

Export to Excel, CSV file

Quite useful tool for quickly troubleshooting the network configuration and parameters inconsistency

Coming soon:

None

Description :

The Application work with Huawei Files that was Redirected by M2000 from NodeBs, eNodeBs and parse it to Excel format.

Redirect To Table (2/2)

Source File and GUI After Parsing

Counter View (1/6) Features :

M2000 single counter Chart view without element limitation (current Huawei limit 10 elements).

Hidden M2000 counter View

Element Filter base on user defined counter and threshold.

Approximation Function by Selected Units

Zoom In (X,Y axis)

Chart Export (CSV,Excel,TXT)

Daily/Hourly data aggregation base on M2000 raw counters (30/15/5 min)

Direct M2000 connection

Multiple Counters on Chart

Formula on Chart

User Aggregation Selection

Coming soon:

Interpolation Line by Selected Units (Trend)

Description :

The application is directly connecting to M2000 server. Get statistic by selected counter and put it in the chart without Huawei limitation. There is local PC overload protection based on raw data volume.

Counter View (2/6)

Connection\Selection Tab View

Counter View (3/6) Multiple Element Chart

Counter View (4/6) Multiple Element Chart with Filter Conditions : RTWP > -98 and COUNT(Points) > 5

Counter View (5/6) Formula Filter

Counter View (6/6) Multiple Counter Selection

M2000 Counters History Collection (1/2)

Features :

Minimal engineering time resources consuption, fully automated.

On demand import of user selected counter groups to defined database server

History counter data collection

Hidden counter data collection

Automatic periodical data collection

Task Network Report Dimensioning

Coming soon:

None

Description:

Application is connecting to M2000 database and copy raw counters data to user defined database

server.

M2000 Counters History Collection (2/2) M2000 Counters History Collection Tool GUI

Dimensioning Reporter (1/3)

Features :

Automatic periodical build predefined reports

Send by Mail

RADIO reports (UL_DL_CE_Usage, ATM_IP_IuB_Usage, TCP_RTWP_report, HSDPA_Codes)

BOARD reports (XPU_board, DPU_Usage, MPU_throughput, INT_traf_CPU, INT_CPU)

Possible to adding extended report

Coming soon:

Completely Board dimensioning

Description:

Application is connecting to M2000 database and copy raw counters and build the reports.

Dimensioning Reporter (2/3) GUI

Dimensioning Reporter (3/3) Reports

M2000 KPI/Counter Trouble Alerter (1/6)

Features :

Useful for supervision and performance activity

Client/Server Application

User predefined KPI periodical tracking.

KPI thresholds customization.

User defined receivers mail list for KPI alerting

Low PC Hardware requirement

Embedded pre analysis provides the TOP 3 raw counters which are mainly affecting KPI

Notification each 30 Minutes (Settable)

Easy configurable alerting thresholds – based on KPI or/and Failure number!

Possibility to define custom clusters and receive dedicated alerts only for cluster’s cells

Enhanced administration GUI.

Coming soon: For LTE

Description :

The application is running on any PC connected to M2000 Server. Periodically it is checking network element KPIs (30/60 min). In case if KPI exceeds user defined thresholds tool sends alert message with attached explicit problem report to receivers mail list.

For real time 3G KPI monitoring OSE mainly uses PRS. PRS has a delay of 2 hours in displaying data. In order to improve team reactivity the mail KPI alerter was implemented.

Main characteristics:

Hard coded KPIs: UMTS_KPI_3GSuccessRateR99Data_R012 UMTS_KPI_3GSuccessRateHSDPAData_R012 UMTS_KPI_3GSuccessRateHSUPAData_R012 UMTS_KPI_3GSuccessRateSpeech_R012 UMTS_KPI_3GDropRateR99Data_R012 UMTS_KPI_3GDropRateHSDPAData_R012 UMTS_KPI_3GDropRateHSUPAData_R012 UMTS_KPI_3GDropRateSpeech_R012 UMTS_KPI_3G2GHOSUCCRateR99Data_R012 UMTS_KPI_3G2GHOSUCCRateSpeech_R012

Easy configurable alerting thresholds – based on KPI or/and Failure number!

Notification each 30 Minutes

Possibility to define custom clusters and receive dedicated alerts only for cluster’s cells

Embedded pre analysis provides the TOP 3 raw counters which are mainly affecting KPI

Alert received by Email

M2000 KPI/Counter Trouble Alerter (2/6) Received alert & GUI

M2000 KPI/Counter Trouble Alerter (3/6)

Enhanced Client GUI

M2000 KPI/Counter Trouble Alerter (4/6)

Single Cell Trouble Report

M2000 KPI/Counter Trouble Alerter (5/6)

Analyze of Unit Fails

M2000 KPI/Counter Trouble Alerter (6/6)

Root Cause Analyze

GERAN/RAN/eRAN Parameter Control (1/7)

Features :

Import GERAN/RNC/eRAN Configuration.

Controlling of user defined Templates (Features Implementation Check)

Mismatch detection between GERAN/RNC/eRAN Configuration.

Aligning GERAN/RNC/eRAN configuration based on user defined template.

Control Global RNC Parameters Between 2 configurations.

Export dumped GERAN/RNC/eRAN Configuration to (excel, csv, txt) .

User friendly display of Huawei RNC board configuration and NodeB, Cell Mapping.

Special Feature : Generate customize cells kmz file for google earth.

Description :

The application is based on local sqlite database. Tool is importing and dumping RNC configuration files (INNERCFGMML) for all kind of preprocessing.

Google earth module is using radio design cells file.

Because of often modifications in 2G

network linked with BTS migration from one

BSC to another, changing the frequency

plan, LAC modifications etc. it is important to

keep 3G database of external cells up to

date.

In order to simplify this task was decided to

implement a Data Base inconsistency

checking tool. The application is installed on

local PC. It is also automatically generating

batch scripts in order to correct all detected

mismatches. Engineer has just to execute

the batch command

GERAN/RAN/eRAN Parameter Control (2/7)

SW is using 2 types of files as data input:

CFG_MML – RNC DB export file ftp:\\xxx.xxx.xxx.xxx/bam/version_x/ftp/export_cfgmml/CFGMML-xxxxxx.txt

OMCR Cell Info file export file ftp:\\xxx.xxx.xxx.xxx/ACIE/ACIE_NLexport_Dir1/cell.xls

Global Parameter Comparison between 2 different RNC

GERAN/RAN/eRAN Parameter Control (3/7)

GERAN/RAN/eRAN Parameter Control (4/7)

Template check report

GERAN/RAN/eRAN Parameter Control (5/7)

Parameter History Evolution

GERAN/RAN/eRAN Parameter Control (6/7)

Board, NodeB, Cell Distribution View

GERAN/RAN/eRAN Parameter Control (7/7)

Example of generated 3G multilayer KMZ file

RNC Parameters Change History (1/5)

Features :

Client/Server Application

Historical RNC Configuration File (INNERCFGMML) data collection.

Automatically Parameter Change Record

Unit (CellId, NodeBId, ANI) parameters Evaluation

Single Parameter Evaluation

Template Control

Coming soon:

MML Command changes History

Description :

The application is running on any PC connected to RNC. Periodically (user defined) tool gets Configuration File (INNERCFGMML) and uploads it to local database. User friendly GUI is displaying time evolution of the selected parameter.

GUI of Server Part

RNC Parameters Change History (2/5)

GUI of Client

RNC Parameters Change History (3/5)

GUI of Client Parameters Evaluation for Unit - CellId

RNC Parameters Change History (4/5)

GUI of Client Single Parameter Evaluation

RNC Parameters Change History (5/5)

NodeB Synchronization control (1/3) Features :

Control synchronization on NodeB

E1/T1 status

Approximately time for checking all NodeBs (500 Elements) ~ 3 Min

Impossible to do manually, use just human resources

Coming soon:

NodeB configuration

Description :

This is multi-thread application. The application connect to NodeB through telnet protocol and collects data, from specific command, during the user defined time. After make clearly understanding report with synchronization problems.

NodeB Synchronization control (2/3) Example of GUI

NodeB Synchronization control (3/3) Example of Report

Microwave Monitoring Tool (1/4) Features :

SNMP MIB’s Loader

SNMP OID’s data collection

Alarm generator

Prediction of device traffic collapse

Main KPI Monitoring

Coming soon:

Extrapolation of capacity expansion

Description :

This is multi-thread application. The application connect to the traffic Node (this case NEC) through SNMP protocol and collects data, from specific OID’s , during the user defined time. After make clearly understanding report with problems.

Microwave Monitoring Tool (2/4) Example of GUI

Microwave Monitoring Tool (3/4) Example of GUI

Microwave Monitoring Tool (4/4) Example of GUI