定位技术背景(Location-.aware technology) Location-based service (LBS)is a key enabling technology of these applications and widely exists in nowadays wireless communication networks from the short-range Bluetooth to the long-range telecommunication networks. ● ●●●●● 88 ●●●●● ●●●●● ●● ●●●●●定位技术背景(Location-aware technology) • Location-based service (LBS) is a key enabling technology of these applications and widely exists in nowadays wireless communication networks from the short-range Bluetooth to the long-range telecommunication networks