Present Condition and Trend of the Wireless Access Technology Toward the Ubiquitous Service

The key technologies that materialize the ubiquitous service are core network, wireless access and terminal/application. Especially, system design of wireless access placed in the middle of network and terminal is important. By make combining the characteristics wireless terminal portability and broadband optical fiber the realization of the ubiquitous service becomes possible. This paper describes about the introduction and future activity of present condition technology about the wireless access that turned it to the ubiquitous service in this paper. This paper expresses the technology activity of 3 fields that are 1 Wireless LAN 2 NWA: Nomadic Wireless Access 3 FWA: Fixed Wireless Access. Furthermore we express about the subject of the future direction nature and wireless access technology of the ubiquitous service based on existing research progress and activity.