ABSTRACT
Dynamic Reconfiguration of lower layers of the protocol stacks used in communication terminals is a key for the
development of future multimode software radio. Together with the use of software downloading, future
terminals will become a platform to support the deployment of yet unspecified services and applications. Today
software radio is viewed more as a technology to enable the reconfiguration terminals at all stages of design, and
production. This paper proposes the concepts of software radio reconfiguration by software downloading on 3G
and possible future 4G standards. The work is to discuss the Software Defined Radio (SDR) main challenges
including the over the air software downloads, installation, execution and automatic reconfiguration.
Keywords: - Mobile Communication, Over the air, Reconfigurable terminal, Software Download, Software
defined radio.