SYSTEM AND METHOD FOR GEOGRAPHICALLY LOCATING A CELLULAR PHONE
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Abstract
According to an embodiment of the invention, there is disclosed a method for geographically locating a cellular phone. The method comprises: determining an effective cell-area for each of a first cell and a second cell in a cellular network; and determining a handover area within which the cellular phone is likely to be located when control of the cellular phone is transferred from the first cell to the second cell; wherein the determination of the handover area and the effective cell-area for each of the first cell and the second cell are made based on a topological relationship between the first cell and the second cell. Further related apparatus embodiments are also disclosed.
99 Citations
114 Claims
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1-92. -92. (canceled)
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93. A method of geographically locating a cellular phone by determining the area in which handover from a first cell to a second cell occurs, the method comprising:
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modeling at least a portion of a cell reception area of said first cell and said second cell; and defining a handover area comprising overlapping portions of said first and second cell areas. - View Dependent Claims (94, 95, 96, 97, 98, 99, 100, 101, 102, 103)
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104. An apparatus for geographically locating a cellular phone by determining the area in which handover from a first cell to a second cell occurs, the apparatus comprising:
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an effective cell-area module for modeling at least a portion of a cell reception area of said first cell and said second cell; and a handover area module for defining a handover area comprising overlapping portions of said first and second cell areas. - View Dependent Claims (105, 106, 107, 108, 109, 110, 111, 112, 113, 114)
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Specification