affic flow expected. Through a computerized process and classical optimization, the main output consists of the identification of sites for BS (or node B) location. The latter will depend on the projected service strategy and the BS range and capacity. The service strategy will take into account the traffic flow generated based on the subscriber profiles of service utilization levels and population densities. The radio coverage task will include or use the multi-path channel models, and refer- ence service rates illustrated in Chapter 2. System dimensioning involves the optimization of coverage and capacity based on mac- rocells and microcells in densely populated areas. It aims to take into account the asym- metry of traffic in the UL and DL and includes in the optimization the TDD mode to maximize capacity and flexibility in micro- and picocells. Network configuration and verification consolidates the coverage and site location ex- ercise by starting a process for the integrated solution of radio and core elements. Based on the capacity and service target requirements, the 3G system architecture is set for the node Bs and CS and PS elements in the core network side. It also looks at the impact on the transmission subsystem. Implementation and deployment completes the 3G-network design process by realizing the projected site locations, service target requirements and time to service. It takes into account the solution adopted for the network deployment, e.g. sharing sites with exist- ing 2G BSs and evolution of CN elements, or a complete new overlay network on the top of the existing 2G system. It may also apply to a totally green field network, i.e. a new deployment. It will also take into account the hierarchy of the network, i.e. the macro- and microlayers where applicable. When deploying in the macrocell environment primarily with the FDD mode or WCDMA technology, the implementation will take into account the coverage depend- ency on the transmission rates and technology availability in terms of antenna conf