ed by the switches/exchanges the exact amount of traffic under each traffic class subscriber calling-related measurements (subscribers/calls/successful call attempts/ traffic intensity) CORE NETWORK PLANNING AND OPTIMISATION traffic loading in the switching exchanges and their availability (leading to congestion figures) configuration of the signalling network loading on the signalling network. The analysis is usually done using network planning tools (refer to Appendix A). Sug- gestions for improvements are made based on the analysis outcome. 4.7.3 Core Network Optimisation Plan Switching Optimisation Plan If a congestion problem is identified, extra PCM connections should be suggested at the location where it is experienced. If the congestion is severe and a new switch is required, then it should be proposed. A whole network topology should be produced, with information on the location of the new switch, traffic routed through it, etc. Inter-switch connections, and traffic routing between the MSC and transit switches, should be modified in locations/regions where a transit switch is carrying excessive traffic. This would mean devising new routing plans. When networks are rolled out, mismatch in naming conventions may happen. One of the objects of the optimisation process is to clear the 'naming mess'. Naming conventions should be applied in a manner that it uniform in the whole network. Signalling Optimisation Plan The number of signalling links should be optimised, with increases or decreases as required. The signalling links and sets should be distributed uniformly across the network. If this is not the case, new signalling links and link sets should be proposed. Usually load sharing is not equal. New signalling plans and network topology should be created to remedy this. Proposals should be made for redundancy in the signalling control units. 2.5-generation Network Planning and Optimisation (GPRS and EDGE) Fundamenta's of Cellular Neowork Planning di Optimisation A.R. Mishra e 2004 John Wiley & Sons, Ltd. IS