Ericsson - GPEH Quick Guide

GPEH: The QUICK REFERENCE GUIDE for XEUS PRO 1

INTELLIGENT OPTIMIZATION

[GPEH: QUICK REFERENCE GUIDE FOR XEUS PRO] This guide is aimed at first time users or experienced users requiring a quick reference on how to set-up and use GPEH for Xeus Pro.


Contents INTRODUCTION ....................................................................................................................................... 3

SUPPORTED FORMAT AND LOG FILE DATA .............................................................................................. 3

IMPORT GPEH/UETR/CTR LOG FILES ........................................................................................................ 5

START GPEH ANALYSIS ............................................................................................................................. 7

Issue Analysis ...................................................................................................................................... 7

Neighbor Analysis ................................................................................................................................ 9

Neighbor Optimization .................................................................................................................... 9

Pilot Pollution ................................................................................................................................ 10

GPEH Search ...................................................................................................................................... 11

Search by Call ................................................................................................................................ 11

Search by Event ............................................................................................................................. 12


INTRODUCTION GPEH is a Performance Recording function which consists of two types of recording, User Equipment

Traffic Recording (UETR) and Cell Traffic Recording (CTR) that supports Ericsson network. Xeus helps you

to analyze calls, events, cells or phone models using GPEH data. It currently supports only Ericsson

WCDMA network.

SUPPORTED FORMAT AND LOG FILE DATA Xeus supports GPEH/UETR/CTR log file formats such as .bin and .bin.gz. They are usually grouped in sets

and each set contains a reference file. The reference file contains links to other files in the set. It is

mandatory to import the reference file for the set. The reference file usually contains ‘0’ as part of its

name. Refer to the picture below as a guide:

Each set of log file data should contain the messages below:

Message In Xeus

INTERNAL_ADMISSION_CONTROL_RESPONSE Identify Admission Control

INTERNAL_CALL_SETUP_FAIL Identify Call Setup Failure

INTERNAL_CHANNEL_SWITCHING Identify Channel Switching

INTERNAL_CMODE_ACTIVATE Identify Compressed Mode Activation

INTERNAL_CMODE_DEACTIVATE Identify Compressed Mode Deactivation

INTERNAL_CNHHO_EXECUTION_ACTIVE Identify Core Network Hard Handover

INTERNAL_FAILED_HSDSCH_CELL_CHANGE Identify failed HS-DSCH cell change

INTERNAL_FAILED_TRANSITION_TO_DCH Identify Failed transition to DCH in HS mode

INTERNAL_HSDSCH_CELL_SELECTION_NO_CELL_SELECTED Identify HS cell selection involving no new cell

INTERNAL_IFHO_EXECUTION_ACTIVE Identify inter-frequency handovers

INTERNAL_IMSI Identify the UE IMSI

INTERNAL_IRAT_HO_CC_EVALUATION Identify IRAT handover decision

INTERNAL_IRAT_HO_CC_EXECUTION Identify IRAT handovers

INTERNAL_MEASUREMENT_HANDLING_EXECUTION Identify Compressed Mode type

INTERNAL_PACKET_DEDICATED_THROUGHPUT Capture RLC and application throughput for PS Interactive data

INTERNAL_PACKET_DEDICATED_THROUGHPUT_STREAMING Capture RLC and application throughput for PS streaming data

INTERNAL_PS_RELEASE_DUE_TO_CNHHO Identify Packet Switched RAB release due to a Core Network Hard Handover


INTERNAL_RAB_ESTABLISHMENT Identify RAB establishments

INTERNAL_RAB_RELEASE Identify RAB releases

INTERNAL_RADIO_QUALITY_MEASUREMENTS_RNH Capture RTWP, DLTxCP and non-HS power

INTERNAL_RADIO_QUALITY_MEASUREMENTS_UEH Capture UL SIR Errors and DL TX Code Power information

INTERNAL_RBS_HW_MONITOR_UPDATE Capture Channel Element capacity and usage information

INTERNAL_SOFT_HANDOVER_EXECUTION Identify Soft Handovers

INTERNAL_SOHO_DS_MISSING_NEIGHBOUR Identify missing neighbors

INTERNAL_SOHO_DS_UNMONITORED_NEIGHBOUR Identify unmonitored neighbors

INTERNAL_SUCCESSFUL_HSDSCH_CELL_CHANGE Identify HS-DSCH cell change

INTERNAL_SUCCESSFUL_HSDSCH_CELL_SELECTION_NEW_ACTIVE_SET

Identify HS-DSCH cell selection with new cell selected after hard handover

INTERNAL_SUCCESSFUL_HSDSCH_CELL_SELECTION_OLD_ACTIVE_SET

Identify HS-DSCH cell selection that selects a new cell in the old active set

INTERNAL_SUCCESSFUL_TRANSITION_TO_DCH Identify successful transition to DCH in HS mode

INTERNAL_SYSTEM_BLOCK Identify blocked call

INTERNAL_SYSTEM_RELEASE Identify dropped call

INTERNAL_SYSTEM_UTILIZATION Capture Resource Usage

INTERNAL_UE_POSITIONING_QOS Capture UE Position from Location Services

RANAP_IU_RELEASE_COMMAND Identify UMTS to GSM relocation

RANAP_IU_RELEASE_REQUEST Identify call release or dropped call

RANAP_RELOCATION_COMMAND Identify direct retry to GSM

RANAP_RELOCATION_PREPARATION_FAILURE Identify IRAT relocation preparation failure

RRC_CELL_CHANGE_ORDER_FROM_UTRAN Identify IRAT Cell Change Order

RRC_CELL_CHANGE_ORDER_FROM_UTRAN_FAILURE Identify IRAT Cell Change failure

RRC_CONNECTION_REJECT Identify RRC Coonection Reject

RRC_CONNECTION_RELEASE Identify RRC connection release

RRC_CONNECTION_REQUEST Identify Call Attempt

RRC_DOWNLINK_DIRECT_TRANSFER Capture NAS messages

RRC_HANDOVER_FROM_UTRAN_COMMAND Identify Successful relocation preparation for IRAT handover

RRC_HANDOVER_FROM_UTRAN_FAILURE Identify Failed relocation preparation for IRAT handover

RRC_INITIAL_DIRECT_TRANSFER Capture NAS messages

RRC_MEASUREMENT_CONTROL Capture GSM Neighbor Information

RRC_MEASUREMENT_REPORT Capture neigbor Ec/No and RSCP

RRC_UPLINK_DIRECT_TRANSFER Capture NAS messages


IMPORT GPEH/UETR/CTR LOG FILES You need to ensure the following before you import GPEH/UETR/CTR data:

1. log file format

2. log file set(s) contain mandatory messages

3. network data (preferably Ericsson Bulk CM)

GPEH/UETR/CTR data is best analyzed when you have Ericsson Bulk CM. It will provide complete analysis

for neighbor optimization. You can refer to Xeus Pro Quick Guide for further information on importing

network data.

Now, follow these steps to start importing Ericsson GPEH/UETR/CTR log files:

1. Go to File > Import and Export > Import Ericsson GPEH logs

2. Select ‘Add Files’ and select the files which includes file ‘0’. If you have placed the files in a

folder, just select ‘Add Folder’

3. Browse and select files


4. Click ‘Next’

5. At General tab, set the ‘Time Offset’ according to your time zone

6. Go to the Filter tab to select the messages you want to include when you import. You can also

save this setting in a Config file and load it when you want to import again

7. Click ‘Next’ and wait for the parsing to complete.

If parsing is successful, you are ready to analyze GPEH/UETR/CTR data.


START GPEH ANALYSIS GPEH database loads automatically together with its summary at the Project Explorer after parsing.

Loading the database will also automatically load the Start Page.

Start page contains summary of Call Type and Call End Type in percentage, issues found and suggested

actions for your issues.

Issue Analysis Xeus allows you to analyze issues from Start Page. To analyze:

1. Select ‘Cells with more than 3% dropped calls’ at the Issues section

2. View the affected cell(s) at the graph on your right. Mouse over on the graph to view the total

dropped calls and percentage for each cell

3. Click on ‘Analyze further with Dropped Call Analysis’ link at the Suggested Actions area. You will

be directed to Dropped Call Analysis page


4. At the Dropped Call Analysis page, right click on a slice at the chart and click on ‘List All Dropped

Calls’ at the context menu

5. You can view all dropped calls at the workbench. Refer to the screen below.


6. Click on the ‘Load GPEH Views’ at your workbench. You can view events & messages and

measurements for each drop call here. Refer to the screen above

7. Locate this drop call event on the map by selecting the drop call and checking at the checkbox

on your workbench. Refer to the screen above

8. Click on the ‘Actions’ button on your workbench and select ‘Display route on Map’

9. Use your map and Google Earth to view event and route.

Neighbor Analysis You can also conduct Neighbor Analysis using GPEH data. Types of Neighbor Analysis which could be

done are:

Neighbor Optimization

Pilot Pollution.

Neighbor Optimization

Neighbor Optimization ranks the top neighbors for the cell and also suggests action to be done to the

neighbor. To optimize neighbor for a cell:

1. Go to Neighbor Optimization page from Start Page at the GPEH address bar. Refer to the picture

below:


2. At this page, select the Advance Settings button to set the multiplier to decide the ranking. Click

on the Advance Settings button again to close the window

3. Click on the Analyze button

4. List of cells and neighbors ranked according to priority calculated from accumulated EcNoThr

5. Right click on the workbench to export the results to Excel sheet

6. Step through the neighbors to view cell location at the map or Google Earth. The example below

shows neighbor priority changed from 6 to 4.

Pilot Pollution

Pilot Pollution enables you to find polluter cells so that you can remove them to optimize network. To

find polluter cells for each cell:

1. Go to GPEH Start Page > Pilot Pollution at the address bar


2. Set Ec/No Threshold value at the Pilot Pollution Statistical information page

3. Click Analyze to view list of polluted cells. Click on the + to expand and view the polluter cells for

each polluted cell. The screen below shows polluted cell has been expanded

Any value more than Ec/No Threshold will be included in AboveEcNoThr and values below will be

included in BelowEcNoThr. Number of events affected by the polluter cell and polluter cells will also

be displayed at the workbench, Pilot pollution tab.

4. Step through the pollution list to view cell location at the map or Google Earth.

GPEH Search This tool helps you to search calls or events. It is located at the Toolbox.

Search by Call

You can search by call using the steps below:

1. Select Toolbox tab on your left panel

2. Select GPEH Search menu and click on Search By Call

3. Select Call Start Cell

4. Click on Clear button as ‘ALL’ is selected as default

5. Select a cell from the Call Start Cell and hit the Search button


6. Your result will display on the workbench at the Call Summary tab

7. Step through the workbench to locate the call. If there is no position info for the selected call, an

alert will appear at the workbench.

Search by Event

You can also search by event.

To search by event:

1. Select Toolbox tab on your left panel

2. Select GPEH Search menu and click on Search By Event

3. Click on Clear button as ‘ALL’ is selected as default

4. Select an event from the Event Type and hit the Search button

5. Your result will display on the workbench at the Event Summary tab

6. Step through the workbench to locate the event.

7. The event will be automatically displayed when you step through

8. To view the route, click on the checkbox beside the event at the workbench. Then, click the

Actions button and click to display route on map.

Documents

Ericsson - GPEH Quick Guide