Cellular telephone system that uses position of a mobile unit to make call management decisions

• US 20050075114A1
• Filed: 11/22/2004
• Published: 04/07/2005
• Est. Priority Date: 12/26/1991
• Status: Active Grant

• Current Assignee: EMSAT Advanced Geo-Location Technology LLC
• Original Assignee: Sycord Limited Partnership
• Inventors: Williamson, Warren P. IV, Pharis, Albert H. Jr., Pauley, Gregory T., Duffy, Timothy J., Dennison, Everett, Jones, Scott L.
• Granted Patent: US 7,289,763 B2
• Time in Patent Office: Days
• US Class Current: 455/456.100
• CPC Class Codes: H04B 7/18541 for handover of resources
• CPC Class Codes: H04B 7/18552 using a telephonic control signal and a second ranging satellite determining absolute distances from a plurality of spaced points of known location G01S5/14
• CPC Class Codes: H04W 36/32 by location or mobility data, e.g. speed data
• CPC Class Codes: H04W 36/322 by location data
• CPC Class Codes: H04W 4/02 Services making use of location information
• CPC Class Codes: H04W 4/029 Location-based management or tracking services
• CPC Class Codes: H04W 4/90 Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
• 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 76/20 Manipulation of established connections
• CPC Class Codes: H04W 76/50 for emergency connections

Abstract

A cellular telephone system has call management decisions made based on the exact geographic location of the mobile unit. These call management decisions include billing and taxing decisions, cell site selection, frequency selection and even cellular system selection. The decisions are continuously updated during a call whereby decisions can be made and changed regardless of where a call originated. Cell site location, and even cellular system selection, can be made in a specific manner to best serve the needs of the mobile user, the cellular system as well as the public. It is even possible for a cellular system to locate one or more of its cell sites in the geographic area served by another cellular system. In some cases, cellular systems might even share cell sites.

Claims

1. A telecommunications system, comprising:

a data storage system for recording a geographic location associated with a communications identifier, and

an updating system responsive to an inaccuracy in the geographic location associated with a communications identifier that exceeds an interval defined by said updating system, and in response thereto updating said data storage system to identify an updated geographic location for said communications identifier.

2. The system of claim 1 wherein

said communications identifier is associated with a mobile communication device, and

said updating system comprises a positioning system obtaining an exact geographic location for a mobile communication device, and comparing said exact geographic location to a previously determined exact geographic location and said interval.

3. The system of claim 2 wherein said mobile communication device is a cellular telephone.

4. The system of claim 1 wherein said interval requires updating at a preset time interval.

5. The system of claim 1 wherein said interval requires updating according to a distance between the geographic location associated with an identifier and a correct geographic location.

6. The system of claim 1 wherein said interval requires updating upon approach or movement across a geographic boundary.

7. The system of claim 6 wherein said geographic boundary is a political boundary between two governmental authorities.

8. The system of claim 6 wherein said geographic boundary is a telecommunications boundary between territories allocated to different telecommunications service providers.

9. A cellular communications system comprising:

a cellular communication network comprising a plurality of cell sites and a plurality of mobile units, for radio frequency communication between said cell sites and mobile units, at least one of said cell sites receiving an identification of a specific mobile unit, said cellular communication network communicating with said specific mobile unit via a cell site chosen based upon signal strength,

a positioning system obtaining a position for said specific mobile unit identifying an exact geographic location of the specific mobile unit, and forwarding said exact geographic location and specific mobile unit identification for use in subsequent services.

10. The cellular communications system of claim 9 wherein said specific mobile unit transmits a position signal.

11. The cellular communications system of claim 10 wherein said specific mobile unit derives said position through the use of radio frequency positioning signals.

12. The cellular communications system of claim 11 wherein said specific mobile unit derives said position through the use of a global positioning satellite system.

13. The cellular communications system of claim 10 wherein said specific mobile unit comprises a GPS receiver connected to logic circuitry in said specific mobile unit.

14. The cellular communications system of claim 13 wherein said specific mobile unit includes a duplexer.

15. The cellular communications system of claim 14 wherein said specific mobile unit includes a GPS receiver located between said duplexer and said logic circuitry.

16. The cellular communications system of claim 9 wherein said cellular communication network compares said exact geographic location to geographic locations of cell sites in the cellular communications network.

17. The cellular communications system of claim 16 wherein said cellular communications network selects a chosen cell site for use by said specific mobile unit based on said comparison of said exact geographic location to geographic locations of cell sites, and establishes communication between said specific mobile unit and said chosen cell site based on the exact geographic location of the specific mobile unit.

18. The cellular communications system of claim 16 wherein said cellular communication network determines the geographic location of a cell site using a look-up table.

19. The cellular communications system of claim 9 wherein said positioning system receives said exact geographic location data from voice and data communication signals received by said cell sites.

20. The cellular communications system of claim 9 wherein said data storage system makes said exact geographic location information accessible for emergency services provisioning.

21. The cellular communications system of claim 9 wherein said data storage system makes said exact geographic location information available for one or more of rate, message unit, tax, billing or location services provisioning.

22. The cellular communications of claim 9 wherein said positioning system makes said exact geographic location information accessible to provide proper services for said location.