Wireless Networks and Technologies in the Third Generation Era

摘要

Significant developments are underway in wireless communications to enhance existing Second Genera-tion (2G) wireless networks to enable delivery of high bit rates to wireless terminals. Third Generation (3G) technologies offer the promise of Internet connectivity, video conferencing, and worldwide roaming in a small handheld terminal. This paper provides an overview of 3G technologies, starting with a review of technology proposals and standards activities. It then describes a proposed vision of the advanced network with emphasis on key service and applications drivers. In the process, we focus on the current vendor developments and corporate alliances especially related to the development of wireless Internet Protocol (IP) applications. The paper concludes with a presentation of a phased approach to the deployment of a mobile corporate network.