ericsson umts oss function

• HOW TO USE UMTS OSS

Introduction

1. This presentation describes how to use the UMTS OSS to recollect measurement and change parameters on the cells.

2. The topics cover by this presentation are: 2. The topics cover by this presentation are: view/change of parameters, alarms and statistics measurements.

Index1. OSS Main Screen2. WCDMA Ran Explorer3. Cell and Channel management4. Adjacent Cell Configuration

Manager5. WCDMA Ran Explorer Tools5. WCDMA Ran Explorer Tools6. Alarms7. Alarms List Viewer8. Alarms List Status Matrix9. Performance10. WCDMA RAN Measurements11. UETR12. CTR

1. UMTS Main Screen

This is the desktop screen for the OSS. From here you can access to the different

application by right click on the screen. The OSS menu will be shown.

2. WCDMA Ran Explorer

The first application that we are going to use is WCDMA Ran Explorer. Click on

Configuration\WCDMA radio access network\WCDMA Ran Explorer.

2. WCDMA Ran Explorer cont’

Most of the configuration functionality for WCDMA RAN are managed by this tool. You can

see the different elements of the network by expanding the tree as is shown above.


Select a RBS to see its status on the right side. You can see that the selected RBS is connected and

unlocked (active). You can also see the status of the cell by expanding the tree further.


Another way to look to the configuration is to change the view mode. Click on the view mode menu

and change the view to RNC/Cell. Expand the tree to see the configuration of the different elements of

the network.

Information about RNCs

Information about Cell


You can access to the setting of the cell by right clicking on it. It will open the Cell and

Channel management.

3. Cell and Channel management

On this screen you can modify the different parameters associated to the cell. The parameters are grouped by

function and localized in the different tabs. Lets begin with the Cells parameters. Notice that the cells is operational.

Finally, You can see the different parameters by moving the scroll bar in the bottom of the form.

3. Cell and Channel management cont’

To change any parameter, you have to click over the parameter. Change the value and then

click Apply to submit the change. Be aware that the change will be apply right away.


Some of the parameters that

you will find on this screen

are: PSC, uarfcnUL, uarfcnDL,

primary CPICH power

Here you can view/change:

administrate state of FACH,

maxFachPower1,

maxFachPower2, etc

Administrate state of FACH,

aichPower, maxFachPower2

and aich TransmissionTiming

can be changed on this

screen

Edit or review the state of

PCH and PCH power on this

screen

On this tab, you can

configure deltaAck,

deltaNack and deltaCQI

related to HSDSCH

This tab contains information

related to the site such as

electrical tilt

Finally, this last tab is for

parameters related to power

control

The parameters are grouped by function and localized in the different tabs. You can check

each on the tab to get familiar with the different parameters in each one of them.

screenrelated to HSDSCHelectrical tilt

control


You can see and edit more than one cell at the time. Select the cell that you want to add

and press the > button. You will see the information together for the cells that you have

added.


Also, you can add sites from the same RNC or different RNC by browsing into the Parent

entity menu.

4. Adjacent Cell Configuration Manager

This windows allows you to change the neighbour configuration of the cell. To open this application

you have right click on the desire cell and select Adjacent Cell…

4. Adjacent Cell Configuration Manager cont’

This is the main window for the handover configuration. You can view/edit the UTRAN handover and

the IRAT as well.

4. Adjacent Cell Configuration Manager cont’

To change a parameters just click on the parameters and change it. To add neighbours you have to first

select it. The you have to define Source cell and Neighbour cell and Add the relation.

5. WCDMA Ran Explorer Tools

There are some tools available in the WCDMA Ran Explorer. Click on Tools to see them.

5. WCDMA Ran Explorer Tools cont’

The first tool is Node Status Analyser. This tool gives information about status of the

different elements of the Node B.

5. WCDMA Ran Explorer Tools

The next tool that we will explain is Cell Availability. This tools is a web application that

reports information about the cells available in the system.

5. WCDMA Ran Explorer Tools cont’

Finally, Element Manager allow you to change the configuration of the node B.

Notice that you need the login information of the sites in order to access this tool

6. Alarms

The another functionality of the OSS is the alarm monitoring. To access the different application

related to alarms, click right button of the desktop. There are three applications: Alarm List Viewer,

Alarm Status Matrix and Alarm Log Browser.

7. Alarms List Viewer

Check this option to select all

The Alarms list Viewer shows the complete alarm status for one or more elements in the network.

Start by selecting the network element to be monitored.

Check this option to select all

the cells in this RNC

7. Alarms List Viewer cont’Alarm severity

Current AlarmsClick to expand the view

You can see the different alarms. The alarms are classified as critical (red), major (orange), yellow

minor), warning (blue), indeterminate (light blue) and clearer (green). To view the details of an alarm,

you have to expand the view first.

Acknowledged Alarms

Click to expand the view

7. Alarms List Viewer cont’

On this screen you can read

the details for the alarm

You can see the RNC… …CELL…

You can see the different alarms. The alarms are classified as critical (red), major (orange), yellow

(minor), warning (blue), indeterminate (light blue) and clearer (green). To view the details of an alarm,

you have to expand the view then you can select the alarm that you want to check.

You can see the RNC…

… to read the time and

type of event and

probable cause!!!

You can scroll down to get

more information…


You also have the option of filtering the data. Press the filter button to open this

functionality


You also have the option of filtering the data. Press the filter button to open this

functionality. Press New to create a filter.The Filter Editor allow you to define the attributes and the values for the attributes that

you want to use for your filter. Finally do not forget to name your filter.


Now you can apply the filter that you have created to the viewer. Sadly for this example but

good for the network, there are not A1 alarms on this RNC.


Finally, as other OSS applications, you can open the help to get more information about the Alarm List

Viewer. You can always press F1 to get access information about an specific button.

8. Alarms List Status Matrix

This tool is used to see the alarms in graphical mode. It is very convenient way to see many

alarms at once.

The first step is to select the objects that you desire to review. You will need to select all the

cells that you want to monitor.

8. Alarms List Status Matrix cont’

You will see an small screen for each of the selected cells. You can scroll down to see more

cells.

You can see the details on the faulty cells by clicking on it. This action will open the Alarm

Viewer tool. On that tool you can read all the information related to the alarm.

8. Alarms List Status Matrix

The last tool related to alarms is the Alarm Log Browser. This tool provides information for alarms logged by the OSS.

Go through the tool by pressing next and follow the instructions provided on each screen. On this screen select the period of time for the alarms that you want to recollect.You can specify the objects from which you want to search alarms. You can also select the

filter that you want to apply. These filter are the same one available for Alarm Viewer.You can select whether to report statistics or plain information about the logged alarms.

For either option you will need to choose the elements that you want to output.

Select how do you want the output to be. On the next screen press Finish to retrieve the

alarms.

9. Performance

There are some application on the OSS related to the performance of the network. This applications

are located under the performance menu. On this presentation we will cover WCDMA RAN

Measurements and WCDMA Recording file Viewer

10. WCDMA RAN Measurements

This is the main screen for the WCDMA Ran Measurements. Here you can create profiles to recollect

data for the different statistics such as UETR, CTR, GEPH, etc. On this presentation will be focused on

UETR and CTR.

1. The UETR function allows the operator to record the important events in a selected UE or UEs traveling through a network, and also to record their behavior.

2. A maximum of 16 simultaneous UETRS are allowed per RNC.

11. UETR

per RNC.3. Recording scanners are activated immediately4. For UETR, the following steps should be followed:

Select the UE’s IMSI number.Select the RNCs.Select the UETR eventsSelect additional measurements

11. UETR cont’

Let’s go through the procedure of defining a UETR profile. You have to create a new profile. Go to to

Administration\ Add profile. The Add UETR … screen will appear. Select UETR and press Next

11. UETR cont’

On this window enter profile name and add a comment if you want. Press next to

continue.

11. UETR cont’

Select the involved RNCs and then click Next.

11. UETR cont’

Select necessary events and then click Next. On this example we are selecting all

RRC events.

11. UETR cont’

Enter the IMSI number of the test UE and then click Next.

11. UETR cont’

Choose relative profile schedule and enter the duration. You have the option of make the profile

periodic. The created profile will be included in the Data collection – Subscription profile dialog box.

11. UETR cont’

In the master screen, you can see the different available profiles and their status. You can also modify

or reschedule the profiles by clicking over them.

11. UETR cont’

In the master screen, you can see the different available profiles and their status. You can also modify

or reschedule the profiles by clicking over them. To see the results of the UETR you can use the

application SONAR.

1. The purpose of the CTR function is to collect data for a number of UE connections within a certain recording area. The recording area is specified by selecting a cell in the RNC.

2. The main difference between CTR and UETR is that,

12. CTR

2. The main difference between CTR and UETR is that, in UETR the operator selects which UE to record and in which RNCs the UE should be recorded, while in CTR, the operator selects the area in which UE(s) should be recorded but has no control over which UEs

are selected.

Limitations

1. Only one cell per profile.2. A maximum of 2 CTRs recording subscriptions with 16

12. CTR cont’

simultaneous UE connections are allowed per RNC .

3. Recording scanners are activated immediately but will only start recording data to file UEs are selected for recording in the Access Cell.

4. Two CTRs cannot be activated within the same access cell.

ProcedureThe procedure is similar to the one for UETR.

1. Select the access cell, which is the cell where CTR measurements performs.

12. CTR cont’

measurements performs.

2. Select the CTR events

3. Select additional measurements

12. CTR cont’

Select Cell Traffic Profiles then create a new profile. The procedure is very similar to the one for the

UETR. The next slides will only shows the new steps.

12. CTR cont’


UETR. The next slides will only shows the new steps. Specific the cell for the measurement.

12. CTR cont’


UETR. The next slides will only shows the new steps. Specific the cell for the measurement. The rest of

the steps are the same as it has described previously.

After the recording has finished, you can see the results with WCDMA Recording File Viewer.

ericsson umts oss function

Documents

wcdma ran

different parameters

cells parameters

viewchange of parameters

explorer contyou

different elements

different tabs

different application