Invention Grant
US09100786B2 Positioning with wireless local area networks and WLAN-aided global positioning systems 有权
使用无线局域网和WLAN辅助全球定位系统进行定位

Positioning with wireless local area networks and WLAN-aided global positioning systems
Abstract:
Accurate position capability can be quickly provided using a Wireless Local Area Network (WLAN). When associated with a WLAN, a wireless device can quickly determine its relative and/or coordinate position based on information provided by an access point in the WLAN. Before a wireless device disassociates with the access point, the WLAN can periodically provide time, location, and decoded GPS data to the wireless device. In this manner, the wireless device can significantly reduce the time to acquire the necessary GPS satellite data (i.e. on the order of seconds instead of minutes) to determine its coordinate position.
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