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Multi sector pilot measurement selecting method and system based on time difference positioning model

A technology for pilot frequency measurement and time difference positioning, which is applied in the directions of radio wave measurement systems, positioning, and measurement devices, and can solve problems such as inapplicable pilot frequency sectors.

Active Publication Date: 2011-02-02
ZTE CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this technique is not suitable for the selection of pilot sectors based on mobile station measurements and TDOA positioning model

Method used

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  • Multi sector pilot measurement selecting method and system based on time difference positioning model
  • Multi sector pilot measurement selecting method and system based on time difference positioning model
  • Multi sector pilot measurement selecting method and system based on time difference positioning model

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Embodiment Construction

[0117] The specific implementation of the present invention is described in detail below by taking a CDMA network as an example with reference to the accompanying drawings: The TDOA positioning method is one of the most important methods in a CDMA network mobile positioning system. In the CDMA network, when the mobile station enters a sector, the mobile station will receive the clock synchronization signal sent by each sector, and the sector where the clock synchronization signal first reaches the mobile station is called the reference sector (RefSector). Other sectors are called non-reference sectors (NonRefSector), the base station to which the reference sector belongs is called reference base station (RefBS), and other base stations are called non-reference base stations (NonRefBS). The reference sector is often the sector closer to the mobile station, mostly the serving sector. After the mobile station receives the clock synchronization signal sent by the reference sector,...

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Abstract

The invention relates to a selecting method of measuring a plurality of sectors pilots based on time difference location model, wherein the measured pilot phases are divided into groups according to the difference of base stations that its sector is attached; group number is also the base station number that this mobile station time measures this time; judging whether it is needed to preferedly selecting from a plurality of sectors measured under the same base station; if needed, carrying out preferedly selecting from a plurality of sectors measured under the same base station; otherwise carrying out the position calculation to the pilot phase of the using sector of the selected base station, and then sending the selected pilot measurement corresponding to the corresponding sector to a position calculation twister. The invention also relates to a moveable location method and system, comprising a MS pilot measuring system, a pilot measuring preferred system, and a location calculation system, wherein the MS pilot measuring system is used in measuring the pilot phase from the mobile station to every sector around; the pilot measuring preferred system is used in selecting a corresponding number of the pilot measurement from the measured pilot phases, based on the pilot measurement request containing designated numbers transmited by the location calculation system; and the location calculation system is used in the selection and location calculation of the positioning algorithmic.

Description

technical field [0001] The present invention relates to mobile station positioning in a mobile communication network, in particular to a method and system for selecting pilot frequency measurements of multiple sectors based on a time difference positioning model. Background technique [0002] As an emerging value-added service provided by the mobile communication network, the wireless positioning service is developing rapidly with its unique advantages such as providing timely and accurate location information to users and real-time monitoring and tracking of terminals; Corresponding positioning technology has also developed rapidly. In the current mobile network positioning technology, the hyperbolic positioning method based on the Time Difference of Arrival (TDOA) positioning model is a widely used and relatively mature positioning method. The following is a brief introduction to the principle of the positioning model: [0003] In the positioning system, there are two ba...

Claims

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Application Information

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IPC IPC(8): G01S5/10H04W64/00
CPCH04W64/00G01S5/10
Inventor 李昭福
Owner ZTE CORP
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