MOBILE WIRELESS COMMUNICATIONS SYSTEM AND METHOD WITH HIERARCHICAL LOCATION DETERMINATION
First Claim
1. A mobile wireless communications network, comprising:
- multiple radio-frequency transceivers and associated multiple antennas to which the associated radio-frequency transceivers are coupled, wherein the multiple radio-frequency transceivers are configured for radio-frequency communication with one or more mobile wireless communications devices; and
a user location database controller coupled to the multiple radio-frequency transceivers, wherein the user location database controller determines a location of a first one of the mobile wireless communications devices by comparing a result of a digital signature location with received signal strength indication measurements to determine whether or not the result of the digital signature location is reasonable, wherein the user location database controller, responsive to determining that the result of the digital signature location is reasonable, stores the result as the location of the first mobile wireless communications device in a user location database, wherein the user location database controller, responsive to determining that the result of the digital signature location is not reasonable, computes the location of the first mobile wireless communications device in conformity with the received signal strength indication measurements.
3 Assignments
0 Petitions
Accused Products
Abstract
A mobile wireless network and a method of operation provide a hierarchical selection from among various location methods in populating a user location database. A digital signature technique is used to determine a location of a mobile wireless communications device. The location is compared with received signal-strength indication (RSSI) measurements to determine if the location provided by the digital signature technique is reasonable, and if so, the digital signal measurement location result is stored in the database. Otherwise, the user location database controller computes the location in conformity with the RSSI measurements. Triangulation measurements in combination with the RSSI measurements may be used to compute a prospective location that is used if the digital signature-determined location is unreasonable and also tested for validity by comparison to the RSSI measurements. The prospective location can also be tested for reasonableness by comparing the RSSI measurements.
8 Citations
21 Claims
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1. A mobile wireless communications network, comprising:
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multiple radio-frequency transceivers and associated multiple antennas to which the associated radio-frequency transceivers are coupled, wherein the multiple radio-frequency transceivers are configured for radio-frequency communication with one or more mobile wireless communications devices; and a user location database controller coupled to the multiple radio-frequency transceivers, wherein the user location database controller determines a location of a first one of the mobile wireless communications devices by comparing a result of a digital signature location with received signal strength indication measurements to determine whether or not the result of the digital signature location is reasonable, wherein the user location database controller, responsive to determining that the result of the digital signature location is reasonable, stores the result as the location of the first mobile wireless communications device in a user location database, wherein the user location database controller, responsive to determining that the result of the digital signature location is not reasonable, computes the location of the first mobile wireless communications device in conformity with the received signal strength indication measurements. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A mobile wireless communications network including multiple radio-frequency transceivers and associated multiple antennas to which the associated radio-frequency transceivers are coupled, wherein the multiple radio-frequency transceivers are configured for radio-frequency communication with one or more mobile wireless communications devices;
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a user location database controller coupled to the multiple radio-frequency transceivers, wherein the user location database controller determines a location of a first one of the mobile wireless communications devices by comparing a result of a digital signature location with received signal strength indication measurements to determine if the result of the digital signature location is reasonable, wherein the user location database controller, responsive to determining that the result of the digital signature location is reasonable, stores the result as the location of the first mobile wireless communications device in a user location database, wherein the user location database controller, responsive to determining that the result of the digital signature location is not reasonable, computes a prospective location of the first mobile wireless communication device from a triangulation computation and the received signal strength indication measurements, wherein the user location database controller determines whether the prospective location is reasonable, and responsive to determining that the prospective location is reasonable, stores the prospective location as the location of the first mobile wireless communications device in the user location database, and wherein the user location database controller, responsive to determining that the prospective location computed from the triangulation computation and the received signal strength indication measurements is not reasonable, determines the location of the first mobile wireless communications device entirely from the received signal strength indication measurements and stores the location of the first mobile wireless communications device in the user location database.
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12. A method of providing navigation information to a mobile wireless communications network, the method comprising:
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coupling in communication, multiple radio-frequency transceivers and associated multiple antennas to which the associated radio-frequency transceivers are coupled, to a plurality of mobile wireless communication devices; within the mobile wireless communications network, determining a location of a first one of the mobile wireless communications devices by comparing a result of a digital signature location with received signal strength indication measurements to determine whether or not the result of the digital signature location is reasonable with a user location database controller coupled to the multiple radio-frequency transceivers; responsive to determining that the result of the digital signature location is reasonable, storing the result as the location of the first mobile wireless communications device in a user location database; and responsive to determining that the result of the digital signature location is not reasonable, computing the location of the first mobile wireless communications device in conformity with the received signal strength indication measurements. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification