Method for accurately positioning LTE terminal based on MRO measurement report

Abstract

The invention relates to a method for accurately positioning an LTE terminal based on an MRO measurement report, and belongs to the technical field of mobile communication service. AOA (Angle of Arrival of eNB reception signals) and TA (Timing Advance of UE) data in the standard measurement report of an LTE system is fully utilized to accurately position the UE terminal, the problem that a traditional positioning algorithm can carry out accurate positioning in the cell level and positioning in the cell completely relies on estimation via a spreading model is solved, and the positioning precision of the UE terminal can be improved to about 40m; and the position of the moving UE terminal changes in the time sequence, movement correction is carried out on the position of the terminal in each measurement report time via a mathematical calculation method, and the positioning precision can be further improved to about 20m.

Description

technical field [0001] The invention relates to the technical field of mobile communication services, in particular to a method for accurately locating the position of an LTE (Long Term Evolution) terminal based on an MRO (Measurement Report Original) measurement report. Background technique [0002] With the vigorous development of the mobile Internet, the positioning of the mobile communication terminal UE (User Equipment) has increasingly become the focus of the industry. In the context of increasingly precise and detailed user APP (Application) services, how to accurately locate the location of the UE has become a problem that must be solved. Especially in the case where there are hundreds of millions of users in a city network, how to accurately locate the location of terminals in a timely manner from the massive data on the network side has emerged in recent years in many ways. [0003] The main existing solutions are: [0004] 1) The cell where the UE is located is ...

AI Technical Summary

Problems solved by technology

[0011] 1) Locate the theoretical coverage area of ​​the cell. Although this method is simple to calculate, it has the lowest accuracy and is only used in a small amount at present.

[0012] 2) TOA positioning technology, first of all, in the network scale of hundreds of thousands of base stations, the feasibility of adding hardware is very low

And this method can only be initiated by the mobile phone

[0013] 3) E-OTD positioning technology also needs to add a lot of positioning calculation hardware LMU with known positions. Although the number can be smaller than TOA technology, the feasibility is still very low

[0014] 4) Based on wireless signal loss positioning, due to the great uncertainty in wireless signal propagation, there is currently no universal long-term applicable propagation model formula in the industry, which makes this method less accurate, and usually the positioning error is greater than 100 meters

Generally, it belongs to the application layer information, which can only be parsed by the APP server, and it is difficult for network operators to obtain this information

[0016] 6) WiFi positioning technology, generally only used indoors, does not help outdoor positioning

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