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US 8,478,294 B2Granted
Method and system for mobile station location
AssigneeNice Systems Ltd.
InventorsMoshe Levin, Avraham Freedman, Adam Weinberg, Meir Veisberg, Ori Nurick
Life of this patent
Estimating the term…
Abstract
A system and method for locating mobile stations in a wireless communication system such as a cellular system based on at least one received wireless signal and a database of geographical information.
Claims19
A method of estimating an accuracy of a range measurement comprising:
- determining an intersection point from a plurality of received wireless signal rays;
- partitioning said rays into clusters;
- determining an average delay time and a received signal power for each said cluster based on said received wireless signal rays;
- determining an expected accuracy and an accuracy function based on said average delay time and said received signal power, where said accuracy function comprises directional properties of said cluster and properties of the receiver for receiving said wireless signal rays;
- and
- presenting an estimated range measurement accuracy based on said expected accuracy and said accuracy function.
3 more elements
A system comprising:
- a plurality of receivers to receive respective instances of a plurality of wireless signal rays;
- a plurality of location measurement units associated with said plurality of receivers to determine properties of received wireless signals rays;
- a location manager, comprising a processor and a memory, the processor to:
- partition said rays into clusters,
- determine an average delay time and a received signal power for each said cluster based on said received wireless signal rays;
- determine an expected accuracy and an accuracy function based on said average delay time and said received signal power, wherein said accuracy function comprises directional properties of said cluster and properties of the receiver for receiving said wireless signal rays;
- and
- present an estimated range measurement accuracy based on said expected accuracy and said accuracy function.
5 more elements
Dependencies are inferred from the claim text.