This blog is by Anna-Kaarina Pietilä at Nokia Networks.
There’s a new sense of urgency among operators when it comes to dealing with network complexity and diversity in the operations environment. Increasing automation, troubleshooting and SON (Self Organizing Networks) capabilities in your operations are essential, and the underlying radio access functionalities are especially in focus here.
Serviceability, monitoring and operability are the key words, and we’re making great advances with new features in our latest HSPA release. Based on operator feedback, these features enable cost savings, more efficient collection of network data, and faster troubleshooting
Take one recent case. An operator’s operations team noticed that one particular base station had problems, yet only intermittently and only following one specific alarm. Wanting more information about what exactly was happening, the team opted to employ a neat little Nokia solution called Event Triggered Symptom Data Collection. As the name suggests, the tool starts to collect symptom data when triggered by an alarm event.
The team defined the alarm it was seeing as the trigger and the next time it occurred, data was automatically gathered. The operator then sent the data to Nokia who identified the root cause of the problem, saving the operator team hours of frustrating detective work.
Restore previous settings
Or consider this scenario. You download a new transport configuration to a base station, but this includes incorrect data – and connection to your OSS is lost. What do you do? Panic and pump out an urgent site visit plan? Not if you have Nokia’s new self-healing feature known as Transport Configuration Fallback, which notices the problem and falls back to the old configuration, restoring the connection. And you save OPEX by cutting out the need for expensive site visits.
Minimize drive tests
Another common operation is changing parameters in a radio network. This means drive tests to check if they improve the situation, right? But what if your drive tests take you into the mountains or through a major city at rush hour? Ideally you need something that eliminates drive tests altogether. This is exactly what you get with the 3GPP solution. Minimization of Drive Tests, as its name suggests, is a software capability of Nokia’s SON that evaluates network performance without the cost of vehicles, drivers and fuel – again adding up to some worthwhile savings.
One pesky phone not working?
Perhaps you have a problem with a phone model that does not work well in your network. It could fail to load web pages say, or produce periods of silence in voice calls. Getting to the root of this type of problem can be tricky as it involves collecting data using a lot of different tools from various sources. The answer here is a Nokia feature called IMSI Based Call Monitoring. This provides fast troubleshooting of Radio Network Controller (RNC) related issues by collecting all data about a certain call. The solution lets you monitor up to 16 mobile phones without server hardware.
When disaster strikes
What about something a little more extreme? What if you have sent network configurations to several RNCs using NetAct Configurator. Suddenly, an unexpected disaster strikes – and a part of the radio network capacity is knocked out just when unusually high numbers of phone calls are being made.
You need to make critical configuration changes to the radio network, yet your original changes are still pending. With the Plan Progress Indicator and Abort feature this is not a problem. If plan operations are taking too long, simply abort them, then do what you have to do to get the radio network back on track. A major benefit of this feature is that it meets some governments’ regulations requiring that critical configuration changes occur within a specific time period by terminating a current task.
Got an issue you’d like to troubleshoot? Contact us or share it below – we’re happy to help.
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