lise planning parameters (BCCH, BCC, NCC, neighbours, etc.) along with statistics (traffic, blocking, DCR, CSF, etc.) in addition to geographical positioning and engineering parameters (antenna type, tilt, height, etc.). Some planning tools allow the import of statistics. Otherwise, such applications can always be built on MapInfo. MapInfo brings the advantage of also visualising high definition maps (details on roads, buildings, etc.). Troubleshooting Follow-up The optimisation process is a continuous procedure of analysing problems, making actions and assessing improvements. It is important to keep the trace history of problems and actions on a cell level. Such information fits within a general database. The filling task can be automated in order to improve operational efficiency. This may reduce typing effort by automatically filling in cell information, statistics and old/new parameters. Documents Generation Optimisation reports are regularly generated under a predefined presentation format. If manually filled in, these reports may have different formats from time to time. However, automation assures a unique output format. Technical Automation Real network subscribers generate a huge amount of statistics, which are then collected into the Network Management System. Specific tools allow postprocessing of these data and making recommendations accordingly. A control and check-up module is important to plan in order to verify recommended changes before implementation to the network (see Figure 2.55). Frequency Planning Before handling an automatic frequency planning module, it is helpful first to expose the manual frequency planning procedure. The manual method is based on interference prediction. Better accuracy of prediction depends on both the high resolution of digital maps and specific propagation models. In fact, the Okumura- Hata model, which is commonly used in planning tools, is still applicable for 1 km resolution maps. This combination of model/map resolution does not apply to small cells (10m radius)