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A sensorless positioning system and method for an LTE terminal

A positioning method and terminal technology, applied in wireless communication, messages/mailboxes/notifications, electrical components, etc., can solve the problems of inaccurate measurement results, measurement interference by noise, interference, etc., achieve strong anti-interference ability and improve matching speed and accuracy, the effect of reducing the number of triggers

Active Publication Date: 2021-12-31
武汉中软通科技有限公司
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AI Technical Summary

Problems solved by technology

In the actual running network, the RNTI of the terminal is often changed, so there may be false alarms, especially in cells with a large load of users, the probability of false alarms will increase; in addition, the measurement of uplink resources is affected by noise Interference and interference from adjacent cell terminals, the measurement results are inaccurate

Method used

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  • A sensorless positioning system and method for an LTE terminal
  • A sensorless positioning system and method for an LTE terminal

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Embodiment Construction

[0029] The invention provides a method, which can identify and locate the LTE terminal under the condition of no perception in the complex actual environment. The identification specifically refers to identifying the C-RNTI of the target LTE terminal, and the positioning accuracy can be accurate to meters.

[0030] The present invention provides a positioning system for LTE terminals, refer to the attached figure 1 As shown, it includes: a control terminal and an analysis device supporting a 3GPP standard network (GSM, WCDMA, TDSCDMA or LTE).

[0031] The control terminal must support the wireless network of the 3GPP standard (GSM, WCDMA, TDSCDMA or LTE), and be able to send short messages on the corresponding operator network, and send a class of special messages to the target terminal at specific time intervals through software. Short message, this kind of special short message is realized through an interface that can access the underlying protocol stack of the mobile phon...

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Abstract

The present invention provides a method for locating a terminal in an LTE wireless communication network environment. Only the target number is needed, and the TMSI or C-RNTI of the target can be determined without any perception of the target, and the communication between the target and the base station can be triggered. Measure its transmission power, and report the power to the interface and background for data analysis and processing, determine the position of the target, and gradually approach the position of the target through multiple measurements. The invention can greatly reduce the number of short message triggers and improve the matching speed and precision by matching the content. The present invention uses a correlation algorithm to calculate the signal-to-noise ratio and power of the uplink signal of the terminal, can detect the uplink power lower than the noise, and then can detect the signal of the terminal farther away from the analyzing device.

Description

technical field [0001] The present invention provides a method for locating a terminal in an LTE wireless communication network environment, only needs the target number, can determine the TMSI or C-RNTI of the target without any perception of the target, and trigger the communication between the target and the base station, Measure its transmission power, and report the power to the interface and background for data analysis and processing, determine the position of the target, and gradually approach the position of the target through multiple measurements. Background technique [0002] In the LTE wireless communication system, there are many terminals under the base station. These terminals may be communicating with the base station, or they may be in a dormant state. The signals of these terminals will interfere with each other. How to determine the target from these terminals is the first problem to be faced. The first challenge, after determining the target, how to loca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/14H04W4/80H04W24/08H04W64/00
CPCH04W4/14H04W4/80H04W24/08H04W64/00
Inventor 王小伟陈辉
Owner 武汉中软通科技有限公司
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