3G Network Monitoring

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3G NETWORK MONITORING USING OSS

Introduction

This document helps you understand how to monitor the 3G Network using OSS and FACTS. After

reading this document, you should be able to monitor and escalate any major issues in the network, and

solve some small issues.

Contents:

1. How to check RNC Alarms in OSS2. How to interpret the alarms3. How to access RNC Documentation through OSS4. How to access RNC through OSS5. How to check Alarms Directly from the RNC itself6. How to check Alarm logs in RNC7. How to access a Node B through OSS8. How to Reset a Node B9. How to solve FCU/RRU issues after a Node B reset10.How to check E1s status11.How to lock/unlock as site/cell12.How to check Cell Availability and other KPI in FACTS


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A. How to Check RNC Alarms in OSS?1. Right Click in OSS Background2. Select Alarm, View Alarm, Alarm List Viewer

3. Expand mtnrwcom14. Select RNC, right click, view alarms


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B. How to interpret the alarms

1. A critical Alarm and Heartbeat failure, means that the node under ManagedElement is down.Note: 1. This alarm can occur due to O&M Link which is down, and therefore there is disconnection

between OSS and the Node. It is better to open OSS Common Explorer and node Element manager and

check alarm from the node itself to confirm that it is down. If you have this alarm on RNC under

ManagedElement, and you cannot open RNC Element Manager, then this is an emergency issue because

the whole network is down, but it doesnt occur often.

2. The letter C on left of the alarm means that the alarm is cleared.3. A UtranCell_ServiceUnavailable Alarm and RNC under ManagedElement, means that the cell

related to that alarm is down.

For other alarms interpretation and more knowledge on RNC, please use OSS documentation to get

more details as follows:


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C. How to access RNC Documentation through OSS1. Right click in OSS background and select Documentation, AXE Library Explorer

2. Click on Start Web Browser


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3. Select RNC P6.1.4


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4. Click on continue

5. Copy the alarm and paste in Search Document, and click search

Note: You can also call RNC Engineer for alarm interpretation


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D. How to Access RNC through OSS?1. Right click in OSS background and select OSS Network Explorer as shown below

2. Right click on RNC, and select Element Manager as shown below


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3. Now RNC (IP: 10.150.36.17) Element Manager is open

E. How to check Alarms Directly from the RNC itselfFrom RNC Element Manager click on Alarm, and then Alarm List as shown below


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Here we have zero Alarms

F. How to check Alarm logs in RNCIn RNC Element Manager click on alarm, and then click alarm log


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G. How to Access a Node B through OSS?1) Expand RNC as below to see the list of sites


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2) Right Click the Site ID as shown below, and open Element Manager


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3) Check Alarms in Node B (Supervision Alarm List)

H. How to Reset the RBSRight click on RBS ID and select Restart


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Choose a Warm Restart:

Note: A warm restart is better as it doesnt affect much the traffic!


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I. How to solve FCU/RRU issues after a Node B resetAfter Resetting a Node B, sometimes you have Fan Control Unit Failure! Lock, Restart, and Unlock the

FCU as shown below.


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When only 1 or 2 cells are Disabled, either after a Node B reset or not, most of the time restarting the

RRUs of those Cells will help:


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I. Lock it (for e.g Sector 1)

II. Restart it


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III. Unlock it


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\


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J. How to check if transmission is up (E1s)?

I. Open RBS Element managerII. Select Equipment

III. Expand SubrackIV. Select CBU, all 4xE1s should be Enabled.

K. How to lock/unlock a site/cella) Right click on site ID, select lock


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b) Right click on site ID and select unlock, to unlock the site


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How to lock/unlock a cell

1. Select a cell to be locked , and right click on it, and select lock2. Select a cell to be unlocked , and right click on it, and select unlock


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L. How to check Cell Availability and/or other KPIs in FACTS

How to check Cell Availability (and other KPIs) in FACTS:

1. You must have logins to FACTS2. Access:http://10.150.11.55/facts/

3. Once you have logged in expand WCDMA, layer, and click on History
http://10.150.11.55/facts/http://10.150.11.55/facts/http://10.150.11.55/facts/http://10.150.11.55/facts/


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4. Under Vendor, select Ericsson_WCDMA5. Under Tree, Expand RNC and Select RNC

6. Select interval of period you want to know KPIs (Start Date End date), and click submit


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3G Network Monitoring