The offer of innovative technologies and the growth of demands to new services, especially those with higher transmission rates, make the access network planning an important stage in the evolution of cellular systems. Several technological options of transmission systems are already available and to choose the best among them is a great challenge for network planners. This chapter presents a study for strategic planning of the interconnection of base stations in a cellular mobile network. The allocation and dimensioning of transmission equipment are carried out admitting inexact forecast on service's demand values. The techno-economical evaluation is driven by max-revenue criterion and is based on the concept of triangular fuzzy number. An application of the method is shown and its implications are discussed in this chapter.