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Method for wireless orientation based on mobile phone travelling speed

A mobile phone mobile and wireless positioning technology, which is applied in wireless communication, radio wave measurement system, radio wave reflection/reradiation, etc., can solve the problems of unsatisfactory processing results of measurement results, difficult selection of filter bandwidth, poor correlation, etc.

Active Publication Date: 2012-11-28
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the bandwidth selection of the filter is relatively difficult: if the bandwidth is too large, the noise residue will be too large, and the filtering effect will not be obvious; if the bandwidth is too small, the processing time will be longer, and the effective signal may be damaged
In fact, during the measurement process, the position of the mobile phone is not fixed, and the movement of the mobile phone position brings errors to the measurement. When the moving speed is too high, the correlation between the two ideal measurement results becomes poor.
Therefore, the effect of processing the measurement results with filters of the same bandwidth is not ideal

Method used

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  • Method for wireless orientation based on mobile phone travelling speed
  • Method for wireless orientation based on mobile phone travelling speed
  • Method for wireless orientation based on mobile phone travelling speed

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Experimental program
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Embodiment Construction

[0072] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0073] image 3 The flowchart of a preferred embodiment of the wireless positioning method based on the moving speed of the mobile phone of the present invention is shown. Combine below image 3 Each step in the process is described in more detail.

[0074] Step S101: the core network (CN) sends a positioning request to the serving radio network controller (SRNC).

[0075] Step S102: the SRNC sends a measurement request for receiving delay between base stations to the mobile phone (UE).

[0076] Step S103: the SRNC sends a mobile phone reception-transmission time measurement request to the UE.

[0077] Step S104: the SRNC sends a mobile speed measurement request to the UE.

[0078] Step S105: UE measurement process, including the measurement of mobile speed.

[0079] Step S106: The UE reports the measurement result of the receiving delay between b...

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Abstract

The present invention provides a wireless location method and device based on the moving speed of mobile phone, acquiring ideal wireless location measurement result. The technical solution includes: the invention includes a measuring course of the moving speed by the mobile phone, adjusting coefficient of a filter according to the moving speed, so as to adjust the bandwidth of the filter, ensuring the filter bandwidth largen accompanied by the largening of the moving speed of the bandwidth and shorten accompanied by the shortening of the moving speed of the bandwidth. The high speed of user can result a bad correlation of two ideal measuring results, so processing with the filter having larger bandwidth is needed. Similarly, the low speed of user results a good correlation of two ideal measuring results, so the processing with the filter having smaller bandwidth is needed. The invention is applied in the filed of mobile communication.

Description

technical field [0001] The present invention relates to a wireless positioning method and device, in particular to a wireless positioning method and device in which there is a measurement reporting process between a network system and a user terminal. Background technique [0002] With the development of wireless communication technology, especially after the United States proposed emergency location service requirements, wireless positioning services have attracted more and more attention from the industry. [0003] According to whether mobile phones are required to participate, the collected positioning technologies are mainly divided into two types: mobile positioning technologies that require mobile phones to report information and mobile phone positioning technologies that do not require mobile phones to report information. For the former, the network system needs to notify the mobile phone through signaling, and the specific location of the mobile phone can be determin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W64/00G01S13/02
Inventor 吴涛
Owner SPREADTRUM COMM (SHANGHAI) CO LTD