GSM mobile communication network terminal positioning method

Abstract

The invention discloses a method for positioning a GSM (global system for mobile communication) mobile communication network terminal. The method comprises the following steps: a. dividing grids for a region covered by a mobile communication network according to the established sizes, and numbering each grid; b. establishing an initial radio broadcasting model of the grid according to a geographical feature and a radio broadcasting feature of each grid; c. generating feature data of the radio broadcasting model of each grip according to DT (drive test) data; d. acquiring a signaling data from the mobile communication network, screening out each conversation in the signaling data, extracting a test report in the conversation, and screening the test report; e. analyzing the matching degree of the screened test report and the feature data of each grip one by one, and calculating a probability value; and f. finding centers of the grids with the highest probabilities, namely the positions of the mobile communication network terminal of the conversation. The positioning method has the characteristics of fast positioning speed and easiness of implementation.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to a GSM mobile communication network terminal positioning method. Background technique [0002] With the continuous development of GSM mobile communication technology, the objects served by the communication industry have begun to transform from surface to point. Locating GSM mobile communication network terminals plays an important role in mobile communication services. For example, for network optimization work, its work level has been refined from simple network operation performance index optimization to mastering individual user service quality. For example, an operator wants to match a certain user's business usage habits and network service quality with the geographical information of the business occurrence; in order to understand the user's service situation in more detail, so as to improve network competitiveness from the most basic user perception level ; ...

AI Technical Summary

Problems solved by technology

[0006] 1) China's GSM network currently does not support LCS services, and the feasibility is insufficient;

[0007] 2) High initial investment

The existing GSM network needs to be reformed in order to achieve synchronization;

[0008] 3) When the business volume is large, the network burden increases

When the demand for positioning increases, the mobile phone needs to frequently execute switching commands, which increases the signaling transmission volume of the GSM network;

[0009] 4) The positioning accuracy is poor, and the positioning accuracy is on the order of 100 meters;

[0010] 5) The positioning speed is slow. Generally, the measurement data of 3 BTSs is needed to complete the positioning work. Therefore, the positioning speed is slow, which is not conducive to the rapid geographic information query of a large number of users

[0012] 1) China's GSM network currently does not support LCS services, and the feasibility is insufficient;

[0013] 2) Existing mobile phones cannot be used for E-OTD positioning, and need to update the software or replace them all;

[0014] 3) High initial investment

Although the ratio of LMU and BTS is between 1:3 and 1:5, a large number of LMUs still need to be built for the entire network, and the investment is relatively large;

[0015] 4) Low precision

Due to the influence of both RTD and geometric distance parameters, the positioning accuracy is low

In addition, multipath effects will affect positioning accuracy (especially in urban areas);

[0016] 5) The positioning speed is slow. Generally, the measurement data of multiple BTSs is required to complete the positioning work. Therefore, the positioning speed is slow, which is not conducive to the rapid geographic information query of a large number of users

[0017] 4. Disadvantages of A-GPS positioning

[0018] 1) Additional data traffic charges need to be generated;

[0019] 2) The cost, size and power of mobile phones increase

To increase the GPS positioning function in the mobile phone, it is necessary to increase the corresponding hardware, resulting in an increase in the cost of the mobile phone

After adding the function of GPS, it will inevitably increase the power consumption and volume

[0020] 3) The number of users who actually enable the A-GPS function is small. The number of users who enable the A-GPS function in the current network is generally far less than 0.1% of the users who turn it on. In terms of actual network optimization and service optimization, the amount of data is limited and the practical value is limited