WIRELESS ARRAY DEVICE AND SYSTEM FOR MANAGING WIRELESS ARRAYS HAVING MAGNETOMETERS

• US 20140301227A1
• Filed: 04/04/2014
• Published: 10/09/2014
• Est. Priority Date: 04/26/2011
• Status: Active Grant

• Current Assignee: Cambium Networks Limited (Cambium Networks Corporation)
• Original Assignee: Xirrus Incorporated
• Inventors: KRATTIGER, STEVEN, MASON, BRIAN
• Granted Patent: US 9,635,509 B2
• Time in Patent Office: Days
• US Class Current: 370/252
• CPC Class Codes: G01R 33/0094 Sensor arrays
• CPC Class Codes: H01Q 1/007 specially adapted for indoor communication
• CPC Class Codes: H01Q 19/106 using two or more intersecting plane surfaces, e.g. corner reflector antennas
• CPC Class Codes: H01Q 21/205 providing an omnidirectional coverage turnstile aerials H01Q21/26
• CPC Class Codes: H01Q 9/285 Planar dipole H01Q9/065 takes precedence; patch antenna H01Q9/0407
• CPC Class Codes: H04W 16/28 using beam steering
• CPC Class Codes: H04W 4/023 using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds
• CPC Class Codes: H04W 4/026 using orientation information, e.g. compass
• CPC Class Codes: H04W 64/00 Locating users or terminals or network equipment for network management purposes, e.g. mobility management
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 72/046 the resource being in the space domain, e.g. beams
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Abstract

A wireless array for providing access to a network is provided. The wireless array includes at least two transceivers in signal communication with a client. A magnetometer of the wireless array provides orientation information relating to an orientation of the wireless array relative to a magnetic field. A controller of the wireless array is in signal communication with the transceivers and the magnetometer. The controller manages the communications exchanged via the transceivers and receives the orientation information provided by the magnetometer.

Claims

1. A wireless array for providing wireless access to a network comprising:

a plurality of transceivers in signal communication with a client;

a magnetometer that provides orientation information relating to an orientation of the wireless array relative to a magnetic field; and

a controller in signal communication with the plurality of transceivers and in signal communication with the magnetometer, the controller manages the communications exchanged via the transceivers and receives the orientation information provided by the magnetometer.

2. The wireless array of claim 1 wherein the magnetometer provides the orientation information as geospatial orientation information relating to the orientation of the wireless array relative to the surface of the Earth.

3. The wireless array of claim 2 wherein the orientation information provided by the magnetometer comprises an azimuth, the azimuth comprising an angular measurement between a bearing of the wireless array and a reference bearing.

4. The wireless array of claim 3 wherein the reference bearing is magnetic north.

5. The wireless array of claim 3 further comprising an orientation module in signal communication with the controller, the orientation module determines a respective geospatial orientation of at least one transceiver in the plurality of transceivers based on the orientation information provided by the magnetometer and respective position of the at least one transceiver in the wireless array.

6. The wireless array of claim 5 wherein the orientation module determines the respective geospatial orientation of the at least one transceiver based on the azimuth and the respective position of the at least one transceiver in the wireless array.

7. The wireless array of claim 6 wherein the orientation module calculates the respective geospatial orientation of the at least one transceiver by adding the azimuth to the respective position of the at least one transceiver in the wireless array.

8. The wireless array of claim 5 further comprising a distance module in signal communication with the controller, the distance module determines a distance between the wireless array and a client in signal communication with the wireless array such that a combination of the distance determined by the distance module and the respective geospatial orientation of the at least one transceiver provided by the orientation module identifies a geospatial sector in which the client is located.

9. The wireless array of claim 8 wherein the geo spatial sector is defined by an antenna pattern of a transceiver in the plurality of transceivers of the wireless array that the client is in signal communication with.

10. The wireless array of claim 8 wherein the distance module determines the distance between the wireless array and the client in signal communication with the wireless array based on a signal strength of a signal received at the wireless array from the client.

11. The wireless array of claim 1 wherein the orientation information provided by the magnetometer is stored in the memory during a boot-up operation, at a periodic interval, or in response to a command received at the wireless array.

12. The wireless array of claim 1 further comprising a network interface in signal communication with the controller, the network interface transmits the orientation information provided by the magnetometer to a data network.

13. A system for managing wireless arrays deployed in a network comprising:

a plurality of wireless arrays deployed in the network wherein at least one wireless array in the plurality of wireless arrays comprises;

a plurality of transceivers in signal communication with a client,

a magnetometer that provides orientation information relating to the orientation of the wireless array relative to a magnetic field, and

a controller in signal communication with the transceivers and in signal communication with the magnetometer, the controller manages the communications exchanged via the transceivers and receives the orientation information provided by the magnetometer; and

a wireless array management system in signal communication with the wireless arrays and comprising one or more modules that manage the wireless arrays.

14. The system of claim 13 wherein the magnetometer provides the orientation information as geospatial orientation information relating to the orientation of at least one wireless array in the plurality of wireless arrays relative to the surface of the Earth.

15. The system of claim 14 wherein the geospatial orientation of the at least one wireless array comprises an azimuth, the azimuth comprising an angular measurement between a bearing of the at least one wireless array and a reference bearing.

16. The system of claim 15 wherein the reference bearing is magnetic north.

17. The system of claim 15 further comprising an orientation module, the orientation module determines a respective geospatial orientation of at least one transceiver in the plurality of transceivers of at least one respective wireless array in the plurality of wireless arrays based on the orientation information provided by the magnetometer and respective position of the at least one transceivers in the respective wireless array.

18. The system of claim 17 wherein the orientation module calculates the respective geospatial orientation of the at least one transceiver by adding the azimuth to the respective position of the at least one transceiver in the respective wireless array.

19. The system of claim 15 wherein the wireless array management system further comprises a client location module that determines a geospatial location of a client in signal communication with a wireless array in the plurality of wireless arrays wherein determining the geospatial location of the client includes:

identifying a wireless array in the plurality of wireless arrays that the client is in signal communication with;

identifying a transceiver that the client is in signal communication with in the plurality of transceivers of the wireless array that the client is in signal communication with;

determining, using the magnetometer of the wireless array the client is in signal communication with, a geospatial orientation of the wireless array;

determining a geospatial orientation of the transceiver the client in signal communication with based on the geospatial orientation of the wireless array and the position of the transceiver the client is in signal communication with in the wireless array;

calculating a geospatial direction of the client relative to the wireless array based on the geospatial orientation of the transceiver that the client is in signal communication with; and

identifying a geospatial sector in which the client is located based on the geospatial direction of the client relative to the wireless array.

20. The system of claim 19 wherein the geospatial sector is defined by an antenna pattern of the transceiver the client is in signal communication with.

21. The system of claim 19 further comprising a distance module, the distance module determines a distance between the client and the wireless array the client is in signal communication with, and wherein determining the geospatial location of the client by the client location module further includes identifying a geospatial sector in which the client is located based on the distance between the client and the wireless array and the geospatial direction of the client relative to the wireless array.

22. The system of claim 21 wherein the distance module determines the distance between the wireless array and the client in signal communication with the wireless array based on a signal strength of a signal received at the wireless array from the client.

23. The system of claim 21 wherein the client location module determines a direction of movement of the client wherein determining the direction of movement includes:

determining, at least twice, the geospatial direction of the client relative to the wireless array;

determining, at least twice, the distance between the client and the wireless array using the distance module; and

identifying a plurality of geospatial sectors in which the client is successively located.

24. The system of claim 21 wherein determining the geospatial location of the client by the client location module further includes:

determining at least two wireless arrays in the plurality of wireless arrays that the client is in signal communication with;

determining a plurality of geospatial sectors in which the client is located based on respective geospatial directions of the client relative to the at least two wireless arrays and respective distances between the client and the at least two wireless arrays;

identifying at least two geospatial sectors in the plurality of geospatial sectors that overlap; and

determining that the client is located in an overlapping portion of the at least two geospatial sectors that overlap.

25. The system of claim 21 wherein the geospatial location of the client is displayed on a map.

26. The system of claim 13 wherein:

the respective plurality of transceivers of the wireless arrays in the plurality of wireless arrays are each adapted to operate at a predetermined frequency; and

the wireless array management system further comprises a frequency management module used to configure the respective frequencies of the transceivers to avoid overlapping frequencies resulting from at least two wireless arrays in the plurality of wireless arrays positioned proximate to one another.

27. The system of claim 26 wherein configuring the respective frequencies of the transceivers using the frequency management module includes:

determining that a first wireless array and a second wireless array in the plurality of wireless arrays are positioned proximate to one another wherein the first wireless array and second wireless array each include a magnetometer;

determining, with the respective magnetometers, respective geospatial orientations of the first wireless array and the second wireless array;

determining, with the orientation module, a geospatial orientation of at least one transceiver in each of the first wireless array and the second wireless array; and

configuring one or more transceivers in at least one of the first wireless array and the second wireless array such that the frequencies of the transceivers in the first wireless array do not overlap the frequencies of the transceivers in the second wireless array.