System and method for precise navigation in testing wireless communication networks

• US 20040203897A1
• Filed: 12/17/2002
• Published: 10/14/2004
• Est. Priority Date: 12/17/2002
• Status: Abandoned Application

• Current Assignee: Comarco Wireless Systems LLC (AppBrilliance, Inc.)
• Original Assignee: Comarco Wireless Technologies Incorporated (Comarco Incorporated)
• Inventors: Rogers, Steve
• Application Number:
  US10/321,112
• Publication Number:
  US 20040203897A1
• Time in Patent Office: Days
• US Class Current: 455/456.1
• CPC Class Codes: H04W 16/18 Network planning tools
• CPC Class Codes: H04W 24/08 Testing, supervising or monitoring using real traffic

Abstract

The invention relates to a system and method for collecting and analyzing data of a wireless communication network including “micro” or “pico” wireless networks. The system collects wireless network performance data utilizing a monitoring device, correlates this information with the monitoring device'"'"'s location and transmits this time-correlated information to a display device. The system tracks the monitoring device in real-time and provides precise location information of the monitoring device. The system has a built-in self-correction mechanism in a navigational module to verify a test operator'"'"'s location. In addition, the system also includes an analysis device for post-test processing of the collected cellular radiotelephone network'"'"'s performance information. The system is portable with long-lasting battery power.

Claims

1. A monitoring device to measure a performance characteristic of a wireless communications network at a plurality of geographic points in a test area, comprising:

a multi-band calling module that at least one of transmits and receives a signal over said wireless communications network at the plurality of geographic points;

a network performance measurement device to generate network performance readings of the performance characteristic at the plurality of geographic points; and

a navigation module to calculate, based on accelerometer output and angular rate readings, a new location of said monitoring device at each of the plurality of geographic points.

2. The monitoring device of claim 1, wherein said navigation module includes a first accelerometer and a first angular rate sensor.

3. The monitoring device of claim 2, wherein said navigation module further includes a second accelerometer and a second angular rate sensor

4. The monitoring device of claim 3, wherein said navigation module includes a third accelerometer and a third angular rate sensor.

5. The monitoring device of claim 1, wherein the navigation module further includes a Global Positioning System (GPS) receiver.

6. The monitoring device of claim 5, wherein a GPS satellite assists said navigation module in determining the new location of said monitoring device.

7. The monitoring device of claim 1, wherein the navigation module calculates the new location of said monitoring device in real-time.

8. The monitoring device of claim 1, wherein the navigation module self-corrects the new location of said monitoring device.

9. The monitoring device of claim 1, further including a power source, said power source selected from one of a replaceable battery pack, a rechargeable battery, a power input terminal, an AC power supply, and a DC power supply.

10. The monitoring device of claim 1, wherein the network performance measurement device is at least one of a multi-band radio frequency scanner and a baseband decoder and controller.

11. The monitoring device of claim 1, further including an actuator to allow remote operation of the monitoring device.

12. The monitoring device of claim 1, further including an alarm subsystem to notify a test operator that a specific condition has occurred.

13. The monitoring device of claim 1, further including a display device to view the performance characteristic of the wireless communication network and to provide input to the monitoring device.

14. The monitoring device of claim 13, wherein the navigation module includes a second accelerometer and a second angular rate sensor.

15. The monitoring device of claim 14, wherein the navigation module further includes a third accelerometer and a third angular rate sensor.

16. The monitoring device of claim 13, wherein the navigation module further includes a Global Positioning Satellite (GPS) receiver.

17. The monitoring device of claim 13, wherein the navigation module calculates the new location of said monitoring device in real-time.

18. The monitoring device of claim 13, wherein the navigation module self-corrects the new location of said monitoring device.

19. The monitoring device of claim 18, wherein waypoints are utilized to self-correct at least one of the new location of said monitoring device and future locations of said monitoring device.

20. The monitoring device of claim 19, wherein the waypoints are input via the display device.

21. The monitoring device of claim 13, wherein the display device is pre-loaded with map or floor-plan information.

22. The monitoring device of claim 13, wherein the display device is coupled to a cradle and the display device modifies screen orientation based on coupling to the cradle.

23. The monitoring device of claim 13, wherein waypoints placed on pre-loaded maps are used to vector scale the new location of the monitoring device.

24. The monitoring device of claim 13, wherein the display device allows operation of a replay mode to view a previously stored operational characteristic of the network.

25. The monitoring device of claim 13, wherein the monitoring device utilizes an expert mode to identify possible wireless network interference and signal strength problems in real-time.

26. The monitoring device of claim 13, wherein the display device is a personal digital assistant (PDA).

27. The monitoring device of claim 13, wherein the monitoring device includes a plurality of single board computers (SBCs).

28. The monitoring device of claim 27, wherein the plurality of SBCs communicate with each other via at least one of an Ethernet protocol, a Bluetooth protocol, or a wireless communication protocol.

29. The monitoring device of claim 13, further including a laptop.

30. The monitoring device of claim 29, wherein the laptop includes an actuator and at least one single board computer.

31. The monitoring device of claim 30, wherein the laptop further includes a data interpretation device and controller.

32. A vehicle-based wireless communications network measurement system, comprising:

at least one monitoring device to measure a performance characteristic of the wireless communications network at a plurality of geographic points in a test area, including

a multi-band calling module that at least one of transmits and receives a signal over a wireless communications network at a plurality of geographic points,

a network performance measurement device to generate network performance readings of the performance characteristic at a plurality of geographic points, and

a navigation module to calculate, based on accelerometer output and angular rate readings, a new location of said monitoring device at each of the plurality of geographic points, and

at least one vehicle to transport the at least one monitoring device to the plurality of geographic points in the test area.

33. The vehicle-based wireless network monitoring system of claim 32, wherein the at least one vehicle is a human-operated motor vehicle.

34. The vehicle-based wireless network monitoring system of claim 32, wherein the at least one vehicle is remote-operated motor vehicle.

35. A method of measuring a performance characteristic of a wireless communications network at a plurality of geographic points, comprising:

at least one of transmitting and receiving a signal over the wireless communications network at the plurality of geographic points;

generating network performance readings of the performance characteristic at the plurality of geographic points; and

calculating a new location of a monitoring device based on accelerometer output and angular rate readings at each of the plurality of geographic points.

36. The method of claim 35, further including displaying the new location of the monitoring device at each of the plurality of geographic points on a display device.

37. The method of claim 35, further including self-correcting said new location of the monitoring device at each geographic point by utilizing at least one of waypoints or a Global Positioning System (GPS) receiver.

38. The method of claim 35, wherein at least one of transmitting and receiving the signal, generating the network performance readings, and calculating the new location are operated remotely, by utilizing an actuator.

39. The method of claim 35, further including transferring the new location of the monitoring device and the network performance readings at each of the plurality of geographic points to an analysis device.

40. The method of claim 35, further including transferring the new location of the monitoring device and the network performance readings at each of the plurality of geographic points to at least one of a server, a monitoring device storage device, a monitoring device random access memory, and a portable memory device.

41. The method of claim 35, further including replaying the network performance readings for a specified subset of the plurality of geographic points.

42. The method of claim 35, further including identifying possible wireless network interference and signal strength problems in real-time.

43. The method of claim 35, further including generating and playing an alarm if the monitoring device is not operating properly.

44. A program code storage device, comprising:

a machine-readable storage medium; and

machine-readable program code, stored on the machine-readable storage medium, having instructions to

at least one of transmit and receive a signal over a wireless communications network at a plurality of geographic points,

generate network performance readings of a performance characteristic at the plurality of geographic points, and

calculate a new location of a monitoring device based on accelerometer output and angular rate readings at each of the plurality of geographic points.

45. The program code storage device of claim 44, further including instructions to display on a display device the new location of the monitoring device at each of the plurality of geographic points.

46. The program code storage device of claim 44, further including instructions to transfer the new location of the monitoring device and the network performance readings at each of the plurality of geographic points to an analysis device.

47. The program code storage device of claim 44, further including instructions to transfer the new location of the monitoring device and to transfer the network performance readings at each of the plurality of geographic points to at least one of a server, a monitoring device storage device, a monitoring device random access memory, and a portable memory device.

48. The program code storage device of claim 44, further including instructions to replay the network performance readings for a specified subset of the plurality of geographic points.