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Method, system and device for locating mobile terminal

A technology of mobile terminal and positioning method, applied in electrical components, wireless communication and other directions, can solve the problems of poor positioning accuracy and large delay

Active Publication Date: 2012-07-11
CHINA MOBILE GROUP DESIGN INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of this, the embodiments of the present invention provide a mobile terminal positioning method, system and device to solve the problems of poor positioning accuracy and large delay of mobile terminals in the prior art

Method used

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  • Method, system and device for locating mobile terminal
  • Method, system and device for locating mobile terminal
  • Method, system and device for locating mobile terminal

Examples

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Embodiment Construction

[0029] Embodiments of the present invention provide a positioning method, system, and device for a mobile terminal. The method selects at least one base station according to the measurement information reported by the mobile terminal, and selects at least one base station according to the extracted Primary Common Control Physical Channel (PPCCH) of each base station correspondingly selected. Control Physical Channel, PCCPCH) RSCP value and timing advance, determine the first distance and the second distance that the mobile terminal arrives at each base station, and according to the first distance and the second distance that the mobile terminal arrives at each selected base station determined, and the stored location information of each base station to determine the current location information of the mobile terminal. Since the mobile terminal is positioned according to the PCCPCH RSCP value and the time advance amount corresponding to each base station reported by the mobile t...

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Abstract

The invention discloses a method, a system and a device for locating a mobile terminal, which are used for solving the problems of low locating precision and large delay existing in the prior art. The method comprises the following steps: according to measurement information reported by a mobile terminal, at least one base station is selected; according to the abstracted and accordingly selected PCCPCH (Primary Common Control Physical Channel) RSCP value and the time advance estimation of each base station, a first distance and a second distance between the mobile terminal and each base station are determined; and the current position information about the mobile terminal is determined according to the first distance and the second distance between the mobile terminal and each selected base station, as well as the position information about each base station. According to the method provided by the embodiment of the invention, since the mobile terminal is located based on the PCCPCH RSCP value corresponding to each base station and the time advance estimation, the precision of locating the mobile terminal is improved, and the delay of locating the mobile terminal is shortened.

Description

technical field [0001] The present invention relates to the field of mobile communication, in particular to a positioning method, system and device for a mobile terminal. Background technique [0002] With the continuous maturity and development of the third generation communication technology (3rd Generation, 3G), users' demand for positioning services is increasing day by day. [0003] In the prior art, positioning methods for mobile terminals mainly include: a network-based cell identification (CELL-ID) positioning method, and a network-assisted global positioning system (Assisted Global Positioning System, A-GPS) in which the network and the mobile terminal are mixed. positioning method. [0004] The network-based CELL-ID positioning method is specifically that the mobile terminal reports the CELL-ID of the cell where it is currently located to the network-side device, wherein the network-side device includes a radio network controller (RadioNetwork Controller, RNC), or...

Claims

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Application Information

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IPC IPC(8): H04W64/00
Inventor 梁双春赵培方媛李冶文李健包海涛郑势
Owner CHINA MOBILE GROUP DESIGN INST
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