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Method and system for locating position of a mobile receiver

A mobile receiver and algorithm technology, applied in satellite radio beacon positioning systems, positioning, transmission systems, etc., can solve problems such as accuracy limitations

Inactive Publication Date: 2009-08-26
GLOBAL LOCATE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the accuracy of localization using NMR is limited

Method used

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  • Method and system for locating position of a mobile receiver
  • Method and system for locating position of a mobile receiver
  • Method and system for locating position of a mobile receiver

Examples

Experimental program
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Embodiment Construction

[0051] figure 1 Shown is a system 100 including a mobile receiver 102 and at least one positioning server 116 . The mobile receiver 102 includes a central processing unit (CPU) 108 , auxiliary circuits 106 and memory 110 . Positioning server 116 includes CPU 120 , auxiliary circuitry 118 and memory 122 . CPU 108, 120 may be one or more conventional microprocessors. Auxiliary circuits 106, 118 are known circuits including power supplies, clocks, input / output interface circuits, and the like. Mobile receiver 102 includes any device capable of communicating over a wireless network, such as a mobile cellular telephone, cell phone, personal digital assistant (PDA), portable, desktop, notebook or other type of computer, pager or telematics device.

[0052] The memories 110, 122 may be random access memory, read only memory, removable disk storage, flash memory, and combinations of such memories. The memory 110, 122 is sometimes referred to as main memory and may be used in part ...

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Abstract

A method and an apparatus for determining a location of a mobile receiver including the steps of measuring a plurality of signal strengths received by a mobile receiver, wherein the plurality of signal strengths are associated with a plurality of cellular stations, wherein the plurality of signal strengths is associated with a specific point in time, combining the plurality of signal strengths with a plurality of signal path modeling parameters to create a propagation path loss model of the path between the plurality of cellular stations and the mobile receiver, applying a non-linear estimation algorithm to the propagation path loss model, generating a plurality of distances, wherein each distance is associated with the mobile receiver and each of the plurality of cellular stations and computing the location of the mobile receiver by iterating the non-linear estimation algorithm and resulting mobile receiver position until converged.

Description

technical field [0001] The present invention relates to mobile cellular receivers, and more particularly to a method and system for calculating the geographic location of a mobile receiver using at least one network test report. Background technique [0002] For wireless long-distance communication networks (that is, communication networks including at least one wireless interface between communication devices), various types of location-based service applications (location-based service applications) have been developed or proposed in the industry. In general, such applications can determine or obtain positioning information related to the location of a mobile receiver of interest, such as a wireless phone, PDA, wireless data terminal etc. Location service applications include E911, local service information and location-based billing applications. In E911 applications, emergency calls are forwarded to a dispatcher selected based on the location of the source of the emerg...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W64/00H04B17/00G01S19/17G01S5/14G01S19/34G01S19/35
CPCH04W64/00G01S5/14G01S11/06
Inventor 詹姆士·拉曼斯大卫·伦德格伦
Owner GLOBAL LOCATE
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