ATR, Alcatel, Daimler-Chrysler, Ericsson, IPSI, IMST, Matsushita, Mitsubishi, NEC, Nokia, NTT, Philips. and Toshiba all reported activities in the areas of software radios, energy or power management, and integrated approaches to wireless system design. The initial objectives described were technologically quite challenging and were estimated to take at least five to 10 years to reach maturity and deserved to be nurtured in the research community.
These objectives included development of (1) high performance A/D converters, (2) frequency synthesizers, (3) low noise amplifiers, (4) low cost, long life batteries, (5) protocols that effect RF power economies, and (6) techniques to support differentiated service qualities in a wireless environment. Scenarios for the deployment of a new generation of systems based on these initial initiatives are already under careful study.
Many activities in wireless system design will benefit from substantial research and development in the area of integrated approaches to wireless systems. Finally, these initial initiatives, which tend to have a hardware focus, should lead to a second generation of integrated systems that will be driven by sophisticated protocols, algorithms, and other software techniques that will harness the full power of the adaptive hardware to produce new services and applications. Some thought should be given to exploring these possibilities.