LOCATION DETECTION
First Claim
1. A method of obtaining location information from at least one mobile communication device in a system for mobile communication comprising a central unit capable of communicating with the mobile communication device, the method comprising the steps of:
- monitoring repeatedly, by the mobile communication device, an identification of a current cell,sending, by the mobile communication device, upon detecting a change of the current cell to a new cell, a location message to the central unit, the location message containing an identification of the new cell,registering, by the central unit, the location message, sent by the mobile communication device during the sending step, together with a time of receipt of the location message, anddetermining, by the central unit, the location of the mobile unit based upon registered location messages, times of receipt and predetermined cell data.
1 Assignment
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Accused Products
Abstract
A method of obtaining location information from at least one mobile communication device (2) in a system (100) for mobile communication comprising a central unit (1) capable of communicating with the mobile communication device, the method comprising the steps of: the mobile communication device repeatedly monitoring the identification of the current cell (3), the mobile communication device, upon detecting a change of the current cell, sending a location message to the central unit, the location message containing the identification of the new cell (3′), the central unit registering the location message together with its time of receipt, the central unit determining the location of the mobile unit based upon the registered location messages, times of receipt and predeterminded cell data.
20 Citations
14 Claims
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1. A method of obtaining location information from at least one mobile communication device in a system for mobile communication comprising a central unit capable of communicating with the mobile communication device, the method comprising the steps of:
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monitoring repeatedly, by the mobile communication device, an identification of a current cell, sending, by the mobile communication device, upon detecting a change of the current cell to a new cell, a location message to the central unit, the location message containing an identification of the new cell, registering, by the central unit, the location message, sent by the mobile communication device during the sending step, together with a time of receipt of the location message, and determining, by the central unit, the location of the mobile unit based upon registered location messages, times of receipt and predetermined cell data. - View Dependent Claims (2, 3, 4, 5, 6, 9, 14)
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7. A computer program product including computer-executable instructions for obtaining location information from at least one mobile communication device in a system for mobile communication comprising a central unit capable of communicating with the mobile communication device, the computer-executable instructions facilitating performing the steps of:
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monitoring repeatedly, by the mobile communication device, an identification of a current cell, sending, by the mobile communication device, upon detecting a change of the current cell to a new cell, a location message to the central unit, the location message containing an identification of the new cell, registering, by the central unit, the location message, sent by the mobile communication device during the sending step, together with a time of receipt of the location message, and determining, by the central unit, the location of the mobile unit based upon registered location messages, times of receipt and predetermined cell data. - View Dependent Claims (8)
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10. A system for mobile communication, comprising at least one mobile communication device and a central unit capable of communicating with the mobile communication device, wherein:
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the mobile communication device is arranged for repeatedly monitoring the identification of a current cell, the mobile communication device is arranged for, upon detecting a change of the current cell to a new cell, sending a location message to the central unit, the location message containing an identification of the new cell, the central unit is arranged for registering the location message, sent by the mobile communication device, together with a time of receipt of the location message, and the central unit is arranged for determining the location of the mobile unit based upon registered location messages, times of receipt and predetermined cell data. - View Dependent Claims (12)
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11. (canceled)
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13. (canceled)
Specification