The purpose of the Tactical Radio Access Network (TRAN) project is to investigate and to propose radio access networks, geared to the needs of military tactical situations, and allowing for maximum use of civilian network technology and communication applications. For designing a TRAN, we consider two different system concepts. The first, called an ad hoc concept, is built on a distributed ad hoc network structure. The second, called a cellular concept, is based on the new UMTS Terrestrial Radio Access Network (UTRAN). This report is the final report in the first phase of the TRAN study and summarizes the outcome so far. We describe the two concepts and present a systematic comparison of them. In the second phase of the TRAN project we will focus on the cellular concept.