A software radio for second- and third-generation mobile systems

This paper picks up the interesting technology of software radio. An explanation of the term software radio is given and differences between civilian and military applications are described. For the frequency region of second- and third-generation mobile cellular systems, the construction of a software radio terminal is investigated. Radiofrequency as well as intermediate-frequency processing and complex base-band processing are discussed. It is shown that all important mobile radio interfaces can be described by parameter lists and that a software radio can be reconfigured by using these parameter lists. With this strategy, interstandard handover becomes feasible. At the same time, the hardware effort is minimized.