GPS enhancement for wireless devices
First Claim
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1. A method comprising:
- (a) at a wireless communication device operating in a radio access network, making a determination that the wireless communication device is likely to lose global positioning system (GPS) connectivity, wherein making the determination that the wireless communication device is likely to lose GPS connectivity comprises determining that a sector in which the WCD is located is a GPS-priority sector for the WCD;
(b) in response to the determination, powering on a GPS receiver to receive GPS location data for the wireless communication device; and
(c) powering off the GPS receiver and storing the received GPS location data.
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Abstract
Methods and systems are disclosed to help improve accuracy of location determination for a wireless communication device. An exemplary method involves: (a) at a wireless communication device operating in a radio access network, making a determination that the wireless communication device is likely to lose global positioning system (GPS) connectivity; (b) in response to the determination, powering on a GPS receiver to receive GPS location data for the wireless communication device; and (c) powering off the GPS receiver and storing the received GPS location data.
63 Citations
19 Claims
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1. A method comprising:
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(a) at a wireless communication device operating in a radio access network, making a determination that the wireless communication device is likely to lose global positioning system (GPS) connectivity, wherein making the determination that the wireless communication device is likely to lose GPS connectivity comprises determining that a sector in which the WCD is located is a GPS-priority sector for the WCD; (b) in response to the determination, powering on a GPS receiver to receive GPS location data for the wireless communication device; and (c) powering off the GPS receiver and storing the received GPS location data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method comprising:
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at a radio access network configured to provide wireless service to a wireless communication device in a plurality of sectors, identifying one or more GPS-priority sectors where the wireless communication device is likely to lose GPS connectivity; making a determination that the wireless communication device is located in one of the GPS-priority sectors; and in response to the determination, transmitting a message to the wireless communication device that indicates that the wireless communication device is located in one of the GPS-priority sectors, thereby causing the to the wireless communication device to power on a GPS receiver to receive GPS location data for the wireless communication device, store the received GPS location data, and then power off the GPS receiver. - View Dependent Claims (15, 16, 17, 18)
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19. A system comprising:
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at least one processor; data storage; and program logic stored in the data storage and executable by the at least one processor to; (a) maintain a GPS-availability database indicating GPS-priority sectors for a wireless communication device; (b) determine that the wireless communication device is likely to lose global positioning system (GPS) connectivity; (c) in response to a determination that the wireless communication device is likely to lose GPS connectivity, power on a GPS receiver to receive GPS location data for the wireless communication device; (d) store the received GPS location data in the data storage; and (e) power off the GPS receiver.
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Specification