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Wireless positioning method and system based on base station signal / mobile phone signal

A mobile phone signal and wireless positioning technology, applied in the positioning field of wireless communication technology, can solve the problems of limited number of base stations and poor positioning accuracy, and achieve the effect of high positioning accuracy

Active Publication Date: 2011-10-19
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0023] The purpose of the present invention is to provide a wireless positioning method and system based on base station signals / mobile phone signals, which mainly solves the technical problem of poor positioning accuracy caused by the limited number of single system base stations in the above-mentioned existing methods

Method used

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  • Wireless positioning method and system based on base station signal / mobile phone signal
  • Wireless positioning method and system based on base station signal / mobile phone signal
  • Wireless positioning method and system based on base station signal / mobile phone signal

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Embodiment Construction

[0058] The invention provides a wireless positioning method based on base station signal / mobile phone signal, such as Figure 4 As shown, the steps of this method are:

[0059] 1. The core network (CN) sends a positioning request to the serving radio network controller (SRNC).

[0060] 2. The SRNC sends the mobile phone (UE) a request for inter-base station reception delay measurement.

[0061] 3. The SRNC sends a mobile phone receive-transmit time measurement request to the UE.

[0062] 4. The SRNC sends a signal delay measurement request of other system cells to the UE.

[0063] 5. UE measurement process (including other system cell signal delay measurement methods).

[0064] 6. UE reports to SRNC the inter-base station reception delay measurement result t 1 -t M , where M is the number of base stations measured, t 1 =0 is the time delay corresponding to the serving cell, and ti is the time delay measured by the i-th (i=1, 2, . . . M) base station.

[0065] 7. The UE ...

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Abstract

The invention relates to a locating technique of wireless communication technique field, in particular to a wireless locating method based on base station signal / mobile phone signal. The method comprises steps that: a double-mode mobile phone or a multimode mobile phone measures the transmission time delay between the base station signals of more than one system, adopts the position of a service wireless network controller to attain accurate positioning estimated result. A system adopting the method is composed of a core network, a service wireless network controller, a base station and a mobile communication terminal (mobile phone). The invention resolves the bad positioning accuracy problem caused by the limited base station number of a single system, to attain higher positioning accuracy.

Description

technical field [0001] The invention relates to positioning technology in wireless communication technology, in particular to a wireless positioning method and system based on base station signals / mobile phone signals. 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 or not mobile phones are required to participate, mobile phone positioning technologies are mainly divided into two types: mobile phone positioning technologies that require mobile phones to report information and mobile phone positioning technologies that do not require mobile phones to report information. [0004] For the former, the network system needs to notify the mobile phone through signaling, and the specific location of the mobile phone can be determined only afte...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W88/00G01S5/02
Inventor 吴涛
Owner SPREADTRUM COMM (SHANGHAI) CO LTD