Positioning With Wireless Local Area Networks And WLAN-Aided Global Positioning Systems
First Claim
Patent Images
1. A wireless device comprising:
- a wireless local area network (WLAN) baseband for communicating with one or more access points, wherein the WLAN baseband is configured to receive location information from at least one of the one or more access points, and determine a location of the wireless device based on the location information; and
a global positioning system (GPS) baseband configured to acquire a satellite positioning system signal based on the determined location of the wireless device.
4 Assignments
0 Petitions
Accused Products
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.
17 Citations
11 Claims
-
1. A wireless device comprising:
-
a wireless local area network (WLAN) baseband for communicating with one or more access points, wherein the WLAN baseband is configured to receive location information from at least one of the one or more access points, and determine a location of the wireless device based on the location information; and a global positioning system (GPS) baseband configured to acquire a satellite positioning system signal based on the determined location of the wireless device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
Specification