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A software framework for software radio

We propose a software framework for the third-generation wireless communication systems. This framework is based on CORBA that is a distributed object-oriented standard. The third-generation wireless communication equipment can execute its processes on CORBA's ORB. We also define a basic bearer service (BBS) using CORBA IDL. Based on this BBS, the handheld can dynamically change software modules of controlling hardware components. In addition, we emulate the software radio environment on a LAN to prove the capability of dynamically downloading hardware controlled software modules in the software radio to change modes and frequency, and show that it can achieve smooth handover in our proposed architecture.