This blog is by Joachim Seifert from Nokia Networks.
It’s said knowledge is power. Well, a clever new technique is being developed by Nokia that aims to make that literally true for smartphones.
Let’s do a little thought experiment to see how it works. Imagine a smartphone is running an application that is idle but then decides to download some videos. Unfortunately, the network is busy. The app starts the download at a rate of just 0.6 Mbps and the device spends a long time on channel. The network becomes even more congested – and after about 1 GB of content is downloaded, the device’s battery is drained.
Result? Frustrated user, overloaded network.
Now suppose the app knows in advance (even though it’s idle) the local cell’s link speed and that of other cells. It knows the fastest cell ID and gets a push notification telling it the time at which it will get the fastest download speed. Because the app doesn’t have to download the videos immediately, it can be flexible as to when it starts.
So it uses its knowledge to decide when and where the least congested connection will be and is able to download the videos using a much higher data rate. Everything runs faster and the download is completed using only 20% of the device’s battery life.
The app’s knowledge about the network is turned into a huge power saving for the device. So knowledge is power…
Result now?? One happy user. And a few hundred more happy users because downloading this way shifts the traffic out of congestion mode.
Known as “Network Knowledge for Apps”, this Nokia solution is an all-around win for everyone interested in seeing apps work better, as it generates efficiency and revenue for both the app provider and the operator.
The technique is easy for application developers to use since they can access network insights from the Network Knowledge server using existing web queries and push notifications technology. Another bonus is that no modifications to the app server are needed.
The solution can also provide network insights for applications and use cases beyond video downloads, such as for streaming, video telephony, gaming, user alerts, home screens, Wi-Fi and navigation.
This innovation is an example of how networks can teach apps to be self-aware and how to personalize the network experience, key steps towards Nokia’s Technology Vision 2020.
Intrigued? Here’s where we showcase innovation and FutureWorks at Nokia Networks.
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