This blog is by Perry Suojoki at Nokia Siemens Networks.
The UK’s Gravelly Hill Interchange, nicknamed ‘Spaghetti Junction’, is infamous nationally. Is it the world’s most complicated road system? Or perhaps that honor belongs to the Puxi Viaduct in Shanghai, or the Judge Harry Pregerson Interchange in Los Angeles?
Anyway, however convoluted these road junctions are, they don’t come close to the sheer complexity of Heterogeneous Networks (HetNets), which encompass various 3GPP Radio Access Technologies on multiple frequency bands, macro and small cells, as well as Wi-Fi access points. And they’re getting more intricate as more sites, more spectrum and higher spectral efficiency are added to help operators meet traffic demand and improve users’ experiences, while also keeping costs to a minimum.
The headache for operators is deciding how best to use all the HetNet’s valuable resources as effectively as possible. Steering traffic between the different layers of the HetNet according to set policies is essential.
A number of policies for steering traffic between access technologies are available, most based on load or service. Traffic steering can also be used to save energy or provide options for different treatment of users and applications. In particular, the performance of traffic steering to balance LTE cell loads is becoming more important because LTE will be the technology with the greatest number of layers.
Map your route with our new White Paper
To help operators develop and implement the right strategies for using their network and spectrum assets efficiently and coping with increasing complexity, Nokia Siemens Networks has published a White Paper on the topic of using Traffic Steering to balance LTE cell loading.
Click here for the white paper – it could be something to read while your bus home is stuck in traffic at a busy multi-road junction.
You can also find it on NSN.com/Liquid Radio: http://www.nokiasiemensnetworks.com/portfolio/liquidnet/liquidradio