• 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: view/change of parameters, alarms and statistics measurements.
Index 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12.
OSS Main Screen WCDMA Ran Explorer Cell and Channel management Adjacent Cell Configuration Manager WCDMA Ran Explorer Tools Alarms Alarms List Viewer Alarms List Status Matrix Performance WCDMA RAN Measurements UETR 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.
2. WCDMA Ran Explorer cont’
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.
2. WCDMA Ran Explorer cont’
Information about Cell
Information about RNCs
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.
2. WCDMA Ran Explorer cont’
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.
3. Cell and Channel management cont’ Some of the parameters that Here youfind canon view/change: you will thisofscreen Administrate state FACH, administrate state of FACH, Edit or review the state of are: PSC, uarfcnUL, uarfcnDL, aichPower, maxFachPower2 On this tab, you can maxFachPower1, PCHprimary and PCH power on this This tab contains information CPICH power and aich TransmissionTiming configure deltaAck, Finally, this last tab etc is for maxFachPower2, screen related to the site such as can be changed on deltaNack and deltaCQI parameters related to this power electrical tilt screen related to HSDSCH 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.
3. Cell and Channel management cont’
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.
3. Cell and Channel management cont’
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’
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 cells in this RNC
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.
7. Alarms List Viewer cont’
Click to expand the view
Alarm severity
Current Alarms
Acknowledged Alarms
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.
7. Alarms List Viewer cont’
On this screen you can read the details for the alarm …CELL… You can see the RNC… You can scroll down to get more information…
… to read the time and type of event and probable cause!!! 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.
7. Alarms List Viewer cont’
You also have the option of filtering the data. Press the filter button to open this functionality
7. Alarms List Viewer cont’
You theallow option ofto filtering Pressand the the filtervalues button open this that The also Filterhave Editor you definethe thedata. attributes fortothe attributes functionality. Press create a filter. you want to use forNew yourto filter. Finally do not forget to name your filter.
7. Alarms List Viewer cont’
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.
7. Alarms List Viewer cont’
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 step is used toselect see the in that graphical mode.toItreview. is very convenient way see many The first is to thealarms objects you desire You will need to to select all the alarms at you once. cells that want to monitor.
8. Alarms List Status Matrix cont’
You screen forfaulty each of thebyselected scroll down seeAlarm more You will cansee seean thesmall details on the cells clicking cells. on it.You Thiscan action will opentothe cells. 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 thereport Alarm Log Browser. This tool provides information for logged by thethe OSS. You can specify the objects from you want tonext search alarms. You can also select the On screen theisto period ofwhich time for On the alarms that you want toalarms recollect. Select how doselect you want the output to be. the screen press Finish to retrieve Youthis can select whether statistics or plain information about the logged alarms. Go through tool by pressing next and follow the instructions provided onavailable each . to filter thatthe you want to will apply. These filter are the same one for Alarm Viewer. alarms. For either option you need to choose the elements that youscreen want output.
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.
11. UETR 1.
2. 3. 4.
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. A maximum of 16 simultaneous UETRS are allowed per RNC. Recording scanners are activated immediately For UETR, the following steps should be followed: Select the UE’s IMSI number. Select the RNCs. Select the UETR events Select 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’
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.
12. CTR 1.
2.
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. 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.
12. CTR cont’ Limitations
1. 2.
Only one cell per profile. A maximum of 2 CTRs recording subscriptions with 16 simultaneous UE connections are allowed per RNC .
3.
4.
Recording scanners are activated immediately but will only start recording data to file UEs are selected for recording in the Access Cell. Two CTRs cannot be activated within the same access cell.
12. CTR cont’ Procedure The procedure is similar to the one for UETR.
1.
Select the access cell, which is the cell where CTR 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’
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. Specific the cell for the measurement.
12. CTR cont’
After the recording has finished, you can see the results WCDMAis Recording File Select Cell Traffic Profiles then create a new profile. Thewith procedure very similar to Viewer. the one for the 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.
