New Wireless System Procedure

The RF design process for a new 2.5G or 3G system is basically the same as
that followed for a new 2G or even 1G wireless system. However, the subscriber
usage needs to factor in both voice and packet data usage. The steps
to do this are as follows:
1. Obtain a marketing plan and objectives.
2. Establish a system coverage area.
3. Establish system on air projections.
4. Establish technology platform decisions.
5. Determine the maximum radius per cell (link budget).
6. Establish environmental corrections.
7. Determine the desired signal level.
8. Establish the maximum number of cells to cover the area.
9. Generate the coverage propagation plot for the system.
10. Determine subscriber usage.
11. Determine usage/sq km (voice and packet).
12. Determine the maximum number of cells for capacity.
13. Determine if the system is capacity- or coverage-driven.
14. Establish the total number of cells required for coverage and capacity.
15. Generate the coverage plot, incorporating coverage and capacity cell
sites (if different).
16. Re-evaluate the results and make assumption corrections.
17. Determine the revised (if applicable) number of cells required for
coverage and capacity.
18. Check the number of sites against the budget objective; if it exceeds the
number of sites, reevaluate the design.
19. Using a known database of sites overlay this onto the system design
and check of matches or close match (
0.2R).
20. Adjust system design using site-specific parameters from known
database matches.
21. Generate propagation and usage plots for system design.
22. Evaluate the design objective with time frame and budgetary
constraints and readjust if necessary.
23. Issue search rings. 380