Network Overlay Geo-Location System with Smart Antennas and Method of Operation
First Claim
Patent Images
1. In a wireless communication system with a network overlay geo-location system, wherein the wireless system includes plural base stations and a MSC, each of said plural base stations including one or more pre-assigned sectors defining a coverage area of the respective base station and wherein one or more of the plural base stations include a smart antenna, a method for determining a location of a target mobile appliance comprising the steps ofdetermining a serving sector from the pre-assigned sectors in the MSC;
- determining from a database whether the serving sector'"'"'s base station has a smart antenna;
scanning antennas elements of the serving sector'"'"'s base station, prior to pattern forming, for the target mobile appliance'"'"'s signal to determine the actual sector serving the mobile appliance; and
,tasking sensors in proximity of actual sector to locate the mobile appliance.
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Abstract
A system and method in a wireless communication system having plural base stations (10a, 10b, 10c) and a MSC (45) with a network overlay geo-location system.
46 Citations
51 Claims
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1. In a wireless communication system with a network overlay geo-location system, wherein the wireless system includes plural base stations and a MSC, each of said plural base stations including one or more pre-assigned sectors defining a coverage area of the respective base station and wherein one or more of the plural base stations include a smart antenna, a method for determining a location of a target mobile appliance comprising the steps of
determining a serving sector from the pre-assigned sectors in the MSC; -
determining from a database whether the serving sector'"'"'s base station has a smart antenna; scanning antennas elements of the serving sector'"'"'s base station, prior to pattern forming, for the target mobile appliance'"'"'s signal to determine the actual sector serving the mobile appliance; and
,tasking sensors in proximity of actual sector to locate the mobile appliance. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. In a network overlay geo-location system for wireless appliances operating in a host wireless communication system, wherein the host system includes a plurality of base stations including plural sectors defining a coverage area, wherein at least one base station employs a smart antenna, and a mobile switching center and a mobile positioning center, wherein the geo-location system uses information parameters from the mobile positioning center to assist in the location of wireless appliance, a method of determining the location of a target wireless appliance comprising the steps of:
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receiving a serving sector in the information parameters from the mobile positioning center; tasking sensors in proximity of each sector in the base station containing the serving sector to locate the mobile appliance, thereby determining the location of the target wireless appliance. - View Dependent Claims (12, 13, 14)
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- 15. In a wireless communication system with a network overlay geo-location system, wherein the wireless system includes plural base stations, an MSC, and an MPC, wherein each of the plural base stations have one or more assigned channels for each sector representing a coverage area, and wherein one or more of the plural base stations include smart antennas for adapting the sectors within the coverage area including reassignment of channels, a method of determining the location of a mobile appliance independently of sector information provided by the MPC comprising the step of tasking all geo-location sensors in the geo-location system to search for the signal and selecting a set of sensors based on the mobile appliance'"'"'s signal parameters at each sensor and locating the mobile appliance with the set of sensors.
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21. A method of locating a mobile appliance operating in a wireless communication system with at least one base station employing a smart antenna, including the steps of receiving mobile information from the wireless communication system, said mobile information including information for determining a serving sector, and tasking geo-location sensors proximate to a search area to locate the mobile appliance, the improvement comprising the steps of
for each antenna output associated with the serving sector'"'"'s base station, measuring a parameter of the mobile appliance'"'"'s signal; - and,
selecting the search area based on the measured parameters, thereby improving the locating of the mobile appliance. - View Dependent Claims (22, 23, 24, 25, 26, 51)
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27. In a network overlay location geo-location system for wireless appliances operating in a host wireless communication network, wherein the host network includes a plurality of base stations, wherein at least one base station employs a smart antenna, wherein the geo-location system uses wireless communication network information to assist in the location acquisition of wireless appliance, a method of determining the location of a target wireless appliance from the target wireless appliance'"'"'s signal parameters measured at plural geo-location sensors comprising the steps of
determining from a database which geo-location sensors are located at base stations with smart antennas; -
adjusting the measured parameters from geo-location sensors located at base stations with smart antenna; and
,determining the location of the mobile appliance from the adjusted measured parameter. - View Dependent Claims (28, 29, 30, 31, 32, 33, 50)
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34. A wireless communication system comprising:
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plural base stations for communicating with one or more mobile units, wherein at least one of the plural base stations comprises a smart antenna;
the smart antenna comprising an antenna array and a pattern-forming network;a network overlay geo-location system comprising a plurality of sensors located at the plural base stations; a mobile positioning center;
wherein the mobile positioning center is in communicational connection with wireless network and the network overlay geo-location system;wherein at least one of the plurality of sensors is interfaced between the antenna array and the pattern-forming network. - View Dependent Claims (35, 36)
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37. A network overlay geo-location system in a wireless communication system with a host base station having a smart antenna, wherein said smart antenna includes an antenna array and a pattern-forming network, the improvement comprising geo-location sensors connected between the antenna array and the pattern forming network.
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38. In a wireless communication system with a network overlay geo-location system for locating a mobile appliance, wherein the wireless communication system includes plural base stations, and a MSC, a method for locating the mobile appliance comprising the steps of:
- retrieving serving sector information from wireless communication system, determining from a database if the serving sector is at a base station with a smart antenna and switching the network overlay geo-location system to a selected one of two different operating modes based on the determination.
- View Dependent Claims (39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49)
Specification