Locating system and method
First Claim
1. In a communication system having a plurality of mobile units operable in wireless communication with a network with each mobile unit having a location data receiver operable to receive location measurement data from a location measurement data source and the system having a position determination entity (PDE) for assisting in location determination for the mobile units and at least one of the mobile units being enabled for communication with the PDE, wherein the mobile units are configured to communicate with the PDE using a first address code and the PDE receives location measurement data sent from the at least one mobile unit and sends either or both acquisition assistance and calculated position information to the at least one mobile unit, a subsystem comprising:
- a position determination entity proxy (PDEP) having a second address code;
a first processor in the at least one mobile unit enabled to cause change of the first address code to the second address code, whereby the PDEP is enabled to communicate with the PDE using the first address code and whereby the PDEP becomes interposed in a communication link between the at least one mobile unit and the PDE and the PDEP relays communications from the at least one mobile unit to the PDE and from the PDE to the at least one mobile unit and is enabled to extract and save any selected portion of said communications, and a second processor enabled to use any of the selected portions of the extracted and saved portions of said communications between the at least one mobile unit and the PDE to perform a third party service.
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Abstract
A mobile rover has a navigation receiver receiving radio positioning data from radio positioning entities. The mobile rover can report its position to a mobile controller unit or another entity so that the location of the mobile unit can be tracked based on the radio positioning data received by the mobile rover. The radio positioning data can be processed by processing systems within the mobile rover, mobile controller, or other entities such as a position determination entity or a position determination entity proxy. The processing systems can also perform calculations to augment the radio positioning data to provide more accurate estimates of the position of the mobile controller and/or the mobile rover. The mobile controller and/or the mobile rover may be cellular telephones within a cellular network.
87 Citations
51 Claims
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1. In a communication system having a plurality of mobile units operable in wireless communication with a network with each mobile unit having a location data receiver operable to receive location measurement data from a location measurement data source and the system having a position determination entity (PDE) for assisting in location determination for the mobile units and at least one of the mobile units being enabled for communication with the PDE, wherein the mobile units are configured to communicate with the PDE using a first address code and the PDE receives location measurement data sent from the at least one mobile unit and sends either or both acquisition assistance and calculated position information to the at least one mobile unit, a subsystem comprising:
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a position determination entity proxy (PDEP) having a second address code;
a first processor in the at least one mobile unit enabled to cause change of the first address code to the second address code, whereby the PDEP is enabled to communicate with the PDE using the first address code and whereby the PDEP becomes interposed in a communication link between the at least one mobile unit and the PDE and the PDEP relays communications from the at least one mobile unit to the PDE and from the PDE to the at least one mobile unit and is enabled to extract and save any selected portion of said communications, and a second processor enabled to use any of the selected portions of the extracted and saved portions of said communications between the at least one mobile unit and the PDE to perform a third party service. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14)
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13. The subsystem according to claim 13, wherein a plurality of heading angular difference values are calculated on the present controller heading and previous controller headings and the heading angular difference values are compared to defined angular thresholds to determine if the present controller heading is valid and to determine the quality of the present controller heading.
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15. A system for providing a third party locating and tracking service in a communication system having a plurality of mobile units operable in wireless communication with a network with each mobile unit having a first location data receiver operable and programmed to receive first location measurement data from a first location technology source and the network having a Position Determination Entity (PDE) for assisting in location determination for the mobile units and the mobile units being enabled for communication with the PDE, and the PDE can receive location measurement data sent from the mobile units and can send data to the mobile units, the system comprising;
one or more of the mobile units being enabled to select a third party service which selection causes interposition in the communications between the at least one mobile unit and the PDE of a position determination entity proxy (PDEP) that can extract and save for use by the third party service selected portions of location measurement data from the at least one mobile unit and data from the PDE. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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22. A method for locating one or more mobile units, the method comprising:
- receiving first location measurement data at a first mobile unit from a first location technology source;
sending some or all of the first location measurement data to a position determination entity;
determining navigation status information based on the first location measurement data received at the position determination entity;
sending the navigation status information to the first mobile unit; and
extracting at least a portion of the first location measurement data sent to the position determination entity with a position determination entity proxy and/or extracting at least a portion of the assisted navigation information sent to the first mobile unit with the position determination entity proxy. - View Dependent Claims (23, 24, 25, 26, 27, 28)
- receiving first location measurement data at a first mobile unit from a first location technology source;
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29. A system comprising:
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one or more mobile units, wherein at least one mobile unit comprises;
first means for receiving first location measurement data from a first location technology source; and
means for communicating navigation messages, wherein at least one navigation message sent from the mobile unit includes navigation information based on the first location measurement data;
means for determining position information for the at least one mobile unit based on navigation messages received from the at least one mobile unit; and
means for extracting at least a portion of the navigation messages sent to and/or from the first mobile unit. - View Dependent Claims (30, 31, 32)
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33. A method for determining a location for a location subject comprising:
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providing location measurement data from one or more location measurement data sources of at least one location technology source to the location subject; and
providing additional information to the location subject from one or more entities other than the one or more location measurement data sources, wherein the additional information identifies at least one location measurement data source to be tracked by the location subject and the additional information contains data to assist the location subject in acquiring and tracking the at least one location measurement data source, whereby the method reduces time required to acquire and track the at least one location measurement data source. - View Dependent Claims (34)
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35. A method for operating a third party service in a communication system having a plurality of mobile units operable in wireless communication with a network with each mobile unit having a location data receiver operable and programmed to receive location measurement data from a location technology source and the network having a Position Determination Entity(PDE) for assisting in location determination for the mobile units and the mobile units being enabled for communication with the PDE, wherein each mobile unit is configured to communicate with the PDE with a first address code for the PDE and the PDE can receive location measurement data sent from the mobile units and can send position information to the mobile units, the method comprising;
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providing a Position Determination Entity Proxy (PDEP) having a second address code and providing a specially programmed processor in at least one mobile unit enabled to change the first address code to the second address code and the PDEP is enabled to communicate with the PDE using the first address code whereby the PDEP becomes interposed in a communications link between the at least one mobile unit and the PDE and the PDEP relays communications from the at least one mobile unit to the PDE and from the PDE to the at least one mobile unit and is enabled to extract and save any selected portion of said communications, and providing a second processor enabled to use any of the selected portion of the location measurement information from the at least one mobile unit and any selected portion of the position information from the PDE to the at least one mobile unit to perform the third party service. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50)
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51. The method according to claim 51, wherein the controller unit has a display and the display shows a bearing line to at least one rover unit from the controller unit relative to a position and heading of the controller unit.
Specification