Systems and methods of global positioning systems using wireless networks

• US 20100176985A1
• Filed: 01/13/2009
• Published: 07/15/2010
• Est. Priority Date: 01/13/2009
• Status: Abandoned Application

• Current Assignee: Alcatel-Lucent USA, Inc. (Nokia Corporation)
• Original Assignee: Lucent Technologies, Inc. (Nokia Corporation)
• Inventors: Sharma, Ranjan
• Application Number:
  US12/318,942
• Publication Number:
  US 20100176985A1
• Time in Patent Office: Days
• US Class Current: 342/357.640
• CPC Class Codes: G01S 19/46 the supplementary measurement being of a radio-wave signal type
• CPC Class Codes: G01S 5/14 Determining absolute distances from a plurality of spaced points of known location

Abstract

Example embodiments use wireless network signals containing geographic data in order to determine a location of a device receiving and/or processing the wireless network signals. For example, the wireless signals may be transmitted as part of a Wide-Area network or Wireless Local Access Network (WLAN) from a wireless access node, commonly present in private and commercial dwellings. Example embodiments and methods may utilize the geographic data in the wireless signals to quickly determine a location in areas and at times when conventional GPS signals are not available. Similarly, example methods and systems may use geographic data from wireless signals to supplement available conventional GPS data in order to more quickly and/or more accurately determine geographic information.

Claims

1. A Global Positioning System (GPS) device, comprising:

a first antenna configured to receive a first signal transmitted from a wireless access node of a wireless network, the first signal including an access node power value for the wireless access node and geographic data of the access node; and

a processor configured to calculate a position of the GPS device based on the geographic data of the access node, the access node power value, and a signal strength of the first signal.

2. The GPS device of claim 1, further comprising:

a second antenna configured to receive at least one second signal transmitted from at least one associated non-terrestrial GPS satellite, the second signal including geographic data of the at least one GPS satellite, wherein the processor is configured to calculate a position of the GPS device based on at least one of the geographic data of the access node and the geographic data of the at least one GPS satellite.

3. The GPS device of claim 1, further comprising:

a presentation device configured to output the calculated position of the GPS device.

4. The GPS device of claim 1, wherein at least one of the first antenna and the processor are configured to determine a distance between the GPS device and the wireless access node based further on signal data included in the first signal.

5. The GPS device of claim 4, wherein the processor is configured to calculate the position of the GPS device based on the geographic data and the distance.

6. The GPS device of claim 1, wherein the first antenna is additionally configured to receive at least one second signal transmitted from at least one associated non-terrestrial GPS satellite, the second signal including geographic data of the at least one GPS satellite, and wherein the processor is configured to calculate a position of the GPS device based on at least one of the geographic data of the access node and the geographic data of the at least one GPS satellite.

7. The GPS device of claim 1, wherein the first antenna is configured to receive a plurality of first signals transmitted from a plurality of wireless access nodes, and wherein the processor is configured to calculate the position of the GPS device based on the geographic data in each of the plurality of signals.

8. The GPS device of claim 7, wherein the processor is configured to determine a distance between the GPS device and each of the wireless access nodes based on a strength of each of the first signals and data included in each of the first signals, and wherein the processor is configured to calculate the position of the GPS device based on the determined distances.

20. The method of claim 1, wherein the geographic data and the access node power value are included in a Service Set Identifier of the first signal.

9. A Global Positioning System (GPS), comprising:

at least one terrestrial wireless access node providing wireless access to a network, the access node including geographic data of the access node and configured to transmit a first signal including the geographic data of the access node and an access node power value for the wireless access node in a Service Set Identifier of the first signal.

11. The GPS of claim 9, wherein the geographic data includes a latitude value of the wireless access node and a longitude value of the wireless access node.

12. The GPS of claim 9, wherein the access node is configured to at least one of,

be manually input with the geographic data of the access node by a user, and

automatically retrieve the geographic data of the access node from an outside data source.

13. The GPS of claim 12, wherein the outside data source is at least one of the Internet and a GPS device.

10. (canceled)

14. A method of obtaining a geographic location of a Global Positioning System (GPS) device, the method comprising:

receiving, at the GPS device, a first signal transmitted from a terrestrial wireless access node of a wireless network, the first signal including an access node power value for the wireless access node and geographic data of the access node; and

calculating the geographic location of the GPS device based on the geographic data of the access node, the access node power value, and a signal strength of the first signal.

15. The method of claim 14, further comprising:

receiving, at the GPS device, a second signal transmitted from an associated non-terrestrial GPS satellite, the second signal including geographic data of the GPS satellite; and

calculating the geographic location of the GPS device based on at least one of the geographic data of the access node and the geographic data of the GPS satellite.

16. The method of claim 14, further comprising:

determining a distance between the GPS device and the wireless access node based on at least one of a signal strength and signal data included in the first signal; and

determining the geographic location of the GPS device based on the geographic data and the distance.

17. The method of claim 16, wherein the first signal includes a plurality of first signals received from multiple access nodes, wherein the determining the geographic location of the GPS device includes calculating a plurality of distances between the antenna and each of the access nodes, and wherein the geographic location is determined based on the geographic data from the access nodes and the plurality of distances.

18. A method of operating a Global Positioning System (GPS), the method comprising:

transmitting a first signal from at least one terrestrial wireless access node providing wireless access to a network, the first signal including geographic data of the access node and an access node power value for the wireless access node in a Service Set Identifier of the first signal.

19. The method of claim 18, wherein the Service Set Identifier is publicly accessible, and wherein the geographic data includes a latitude value of the wireless access node and a longitude value of the wireless access node.