System and method for analyzing the precision of geo-location services in a wireless network terminal

• US 7,171,220 B2
• Filed: 03/12/2004
• Issued: 01/30/2007
• Est. Priority Date: 03/14/2003
• Status: Active Grant

• Current Assignee: ARRIS Enterprises LLC (CommScope Holding Company, Inc.)
• Original Assignee: MeshNetworks, Inc. (Motorola Solutions, Inc.)
• Inventors: Belcea, John M.
• Primary Examiner(s): LE, DANH C
• Application Number:
  US10/799,398
• Publication Number:
  US 20040179667A1
• Time in Patent Office: 1,054 Days
• Field of Search: 455/457, 455/456.2, 455/456.6, 455/416, 455/456.5, 340/995.1, 340/995.16, 701/200, 701/214, 709/204
• US Class Current: 455/457
• CPC Class Codes: H04M 2242/04 for emergency applications
• CPC Class Codes: H04M 2242/14 with services dependent on location
• CPC Class Codes: H04M 2242/30 Determination of the location of a subscriber
• CPC Class Codes: H04M 3/2263 Network management

Abstract

A system and method for presenting an interactive visual feedback, based upon input parameters, indicating quality levels in terminal location detection in a network at selectable points on a map. The system and method includes an application in which a user provides information regarding network terminals, terminal locations, and map parameters. In response, the application then provides a visual indication of expected accuracy in geo-location calculations for terminals at specific points in a network map.

Claims

1. A method for determining desired physical locations of reference points for use in identifying geographic locations of mobile terminals in an area of interest within a wireless network, the method comprising:

inputting information pertaining to a plurality of reference terminals in the wireless network, the information including respective location information for each of the reference terminals;

generating, based on the input information, a visual display illustrating the locations of the reference terminals, along with a visual indication representing expected levels of precision in geo-location calculations for determining respective geographic locations of the mobile terminals in the wireless network; and

analyzing the levels of precision in the area of interest to update the visual display with the location information of the reference terminals and the levels of precision in geo-location calculations for determining respective geographic locations of the mobile terminals.

2. The method as claimed in claim 1, wherein:

the input information includes map parameters; and

the generating step generates the visual display which includes a map display that is generated based on the map parameters with the respective locations of the reference terminals and the visual indication of expected levels of precision being included on the map display.

3. The method as claimed in claim 2, wherein:

the information includes respective longitude, latitude and altitude information of each of the respective reference terminals; and

the map display of the locations of the reference terminals is generated based on the longitude, latitude and altitude information.

4. The method as claimed in claim 2, wherein:

the information includes signal propagation information indicating respective maximum distances at which signals emitted from the respective reference terminals can propagate; and

wherein the map display indicating the expected levels of precision in geo-location calculations is generated based on the signal propagation information.

5. The method as claimed in claim 1, wherein:

the wireless network includes an ad-hoc peer-to-peer wireless network, wherein the reference terminals comprise fixed nodes, and wherein the mobile terminals comprise mobile nodes, in the ad-hoc peer-to-peer wireless network.

6. The method as claimed in claim 1, wherein:

the inputting step includes inputting the information via a computer; and

the generating step generates the visual display on a display screen of a computer.

7. A computer-readable medium of instructions, for controlling a device to determine desired physical locations of reference points for use in identifying geographic locations of mobile terminals in an area of interest within a wireless network, the computer-readable medium of instructions comprising:

a first set of instructions, for controlling the device to receive information pertaining to a plurality of reference terminals in the wireless network, the information including respective location information for each of the reference terminals;

a second set of instructions, for controlling the device to generate, based on the input information, a visual display illustrating the locations of the reference terminals;

a third set of instructions, for identifying the expected levels of precision in geo-location calculations for determining respective geographic locations of the mobile terminals in the wireless network; and

a fourth set of instructions, for updating the visual display with the location information of the reference terminals and the expected levels of precision in geo-location calculations for determining respective geographic locations of the mobile terminals in the network.

8. The computer-readable medium of instructions as claimed in claim 7, wherein:

the input information includes map parameters; and

the second set of instructions controls the device to generate the visual display which includes a map display that is generated based on the map parameters with the respective locations of the reference terminals and the visual indication of expected levels of precision being included on the map display.

9. The computer-readable medium of instructions as claimed in claim 7, wherein:

the information includes respective longitude, latitude and altitude information of each of the respective reference terminals; and

the second set of instructions controls the device to generate the visual display of the locations of the reference terminals based on the longitude, latitude and altitude information.

10. The computer-readable medium of instructions as claimed in claim 7, wherein:

the information includes signal propagation information indicating respective maximum distances at which signals emitted from the respective reference terminals can propagate; and

the second set of instructions controls the device to generate the visual indication representing the expected levels of precision in geo-location calculations based on the signal propagation information.

11. The computer-readable medium of instructions as claimed in claim 7, wherein:

the wireless network includes an ad-hoc peer-to-peer wireless network, wherein the reference terminals comprise fixed nodes, and wherein the mobile terminals comprise mobile nodes, in the ad-hoc peer-to-peer wireless network.

12. The computer-readable medium of instructions as claimed in claim 7, wherein:

the device includes a computer;

the first set of instructions controls the computer to receive the information; and

the second set of instructions controls the computer to generate the visual display on a display screen of the computer.

13. A geo-location analysis system for determining desired physical locations of reference points for use in identifying geographic locations of mobile terminals in an area of interest within a wireless network, the system comprising:

an input device, designed to input information pertaining to a plurality of reference terminals in the wireless network, the information including respective location information for each of the reference terminals; and

a processor, designed to generate, based on the input information, a visual display illustrating the locations of the reference terminals, along with a visual indication representing expected levels of precision in geo-location calculations for determining respective geographic locations of the mobile terminals in the wireless network, and designed to analyze the levels of precision in the area of interest to update the visual display with the location information of the reference terminals and the levels of precision in geo-location calculations for determining respective geographic locations of the mobile terminals.

14. The system as claimed in claim 13, wherein:

the input information includes map parameters; and

the processor generates the visual display which includes a map display that is generated based on the map parameters with the respective locations of the reference terminals and the visual indication of expected levels of precision being included on the map display.

15. The system as claimed in claim 13, wherein:

the information includes respective longitude, latitude and altitude information of each of the respective reference terminals; and

the processor generates the visual display of the locations of the reference terminals is based on the longitude, latitude and altitude information.

16. The system as claimed in claim 13, wherein:

the information includes signal propagation information indicating respective maximum distances at which signals emitted from the respective reference terminals can propagate; and

the processor generates the visual indication representing the expected levels of precision in geo-location calculations based on the signal propagation information.

17. The system as claimed in claim 13, wherein:

the wireless network includes an ad-hoc peer-to-peer wireless network, wherein the reference terminals comprise fixed nodes, and wherein the mobile terminals comprise mobile nodes, in the ad-hoc peer-to-peer wireless network.

18. The system as claimed in claim 13, wherein:

the input includes an input device of a computer; and

the processor generates the visual display on a device designed for visualizing information in a graphic manner.