f the key parameters will ensure a smooth running network. Table 2.5 summarises the key radio and transmission parameters that need to be considered when planning and optimising an EGPRS network. (Note that the parameters are listed with a conceptual explanation in order to keep a generic description regardless of the equipment supplier.) An example of the link budget for the EGPRS network is shown in Figure 2.9. 2.3.3 Dimensioning in the WCDMA Radio Network In WCDMA the coverage and capacity are interrelated. This means that in dimensioning the coverage has to be planned for a service having a load. The used services and their load are input parameters for dimensioning. If the network load changes the coverage has to be planned for a new load situation and if new services are introduced they must be evaluated SO as not to sacrifice coverage. The dimensioning is always a compromise between coverage and capacity. By reducing the maximum load the coverage can be extended. If more capacity is required the coverage area of an individual cell shrinks, and this increases the number of required network elements. Coverage Limited Scenario In this case the load on the system is lower than the initially used value for computation of the cell range. The link budget calculation is repeated with a lower value of system loading to match the actual value of the one used in the link budget. This process leads to a bigger cell range and a lower interference floor, thereby permitting more users in the cell. This reduction in system loading used in the link budget calculation is continued until it matches the actual system loading computed by the traffic profile, resulting in the final cell range. Coverage Related Input Area type information as accurate as possible Coverage area for each roll-out phase Percentage of the area for each morphoclass (DU, U, SU, R) Building penetration loss and fading margin Propagation models for path loss calculation Correction factors for the propagation model Service scenarios should be defined, suc