A Model Driven Architecture (MDA) approach is proposed in this paper for the design of Cognitive Radio (CR) equipments. MDA consists in describing a system at different levels of abstraction, from a high level abstraction representation (often graphical) downto the code to be executed into a specific platform (made of pieces of hardware - e.g. executed on ASICs or FPGAs - and software - e.g. executed on DSPs or GPPs -). This approach for CR is equivalent to define a universal language that any designer in the community may understand in order to design CR devices. Associated to this language, a design environment is proposed in order to provide the adequate tools to design the models at each level of abstraction relatively to CR design needs. This work is based on our previous work on HDCRAM.