re 1.9: Nokia FlexiZone micro with 5+5 W of output power in 5 kg and 5 L outdoor capable package. The lower power indoor products are even smaller and more compact. The small cell deployment is different from the traditional macro cells and requires new competences and tools. For example, the location of the cell is important for the maximal benefit of the small cell. If the small cell is located close to the hotspot users, it can offload lot of macro cell traffic. But if the small cell location is less optimal, it collects hardly any traffic and increases interference. The interference management is also critical between macro and small cells in the co-channel deployment. The 3GPP brings a number of enhancements for HetNet cases in LTE-Advanced for inter- ference management, for multi-cell reception and for higher order modulation. 1.7 Network Optimization The LTE networks need optimization in order to deliver the full potential of LTE technology. The Key Performance Indicators (KPIs) like success rates and drop rates must reach sufficient levels, the data rates should match the expectations for 4G technology and the coverage must fulfil the operator promises. These basic optimizations not only include traditional RF and antenna optimization but also LTE-specific parameter and planning solutions like cell identity planning, link adaptation and power control parameterization and scheduler optimization. The hotspot areas and especially mass events call for more advanced optimization to deliver stable LTE Small Cell Optimization Data rate and success rate optimization Key performance indicator RF optimization optimization Coverage optimization Mass event optimization Capacity optimization Network dimensioning Inter-cell interference management CS fallback Voice optimization VoLTE Voice quality Multi-layer traffic management Inter-layer optimization Multi-system traffic management Mobility optimization Application optimization End-to-end smartphone Terminal power consumption optimization Signalling optimization Figu