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US 2010/0144370 A1Published application
Method and system of locating mobile terminal
AssigneeSamsung Electronics Co., Ltd.
InventorSeok Min JANG
Life of this patent
Estimating the term…
Abstract
A method and a system for locating a mobile terminal using an assisted global positioning system are disclosed. The base station promptly and precisely locates a mobile terminal so that emergency action may be taken immediately. In an exemplary embodiment, the base station transmits the determined location of the caller terminal to a Public Safety Answering Point (PSAP) of an enhanced 911 (E911) Location Information System.
Claims9
A method for locating a mobile terminal based on a assisted global system, comprising:
- transmitting assistance data by a base station to a caller mobile terminal and to at least one other terminal when the base station receives a call signal from the mobile caller terminal;
- receiving GPS satellite signal information from the caller mobile terminal and the at least one other terminal;
- determining a location of the caller mobile terminal and a location of the at least one other terminal based on the assistance data and the GPS satellite signal information;
- and
- estimating a location range of the caller mobile terminal by correcting the location range of the caller mobile terminal using the location of the at least one other terminal and a location of its base station.
2 more elements
An assisted global positioning system-based locating system, comprising:
- a plurality of mobile terminals, each of which includes a GPS module;
- and
- a base station transmitting assistance data to the mobile terminals when receiving a call signal from one of the mobile terminals, determining locations of the mobile terminals based on GPS satellite signal information and the assistance data when the GPS satellite signal information is received from the mobile terminals, and estimating a location range of the mobile terminal which transmitted the call signal using the locations of the mobile terminals excluding the mobile terminal which transmitted the call signal and a location of the base station.
Dependencies are inferred from the claim text.