Locating method in mobile communication system and mobile terminal and locating server thereof

Abstract

The invention discloses a locating method in a mobile communication system and a mobile terminal and a locating server thereof, relating to mobile communication technology. The embodiment of the invention realizes the locating of the mobile terminal in the mobile communication system by a group of practical signal parameter information obtained in locating, a base station mark corresponding to each practical signal parameter information, each group of stored signal parameter statistic values obtained according to practical measurement in different subareas in advance and a base station mark corresponding to each signal parameter statistic value with the method that the mobile terminal is matched and positioned in a subarea corresponding to a group of measured practical signal parameter information and a group of signal parameter statistic values matched with the base station mark; in addition, the invention reduces calculation amount for locating and improves locating precision of the mobile terminal in the mobile communication system.

Description

technical field [0001] The invention relates to mobile communication technology, in particular to a positioning method, a mobile terminal and a positioning server in a mobile communication system. Background technique [0002] With the rapid development of social economy, not only the scope of people's activities is getting bigger and bigger, but also the frequency and speed are getting higher and higher, and the uncertainty is also getting bigger and bigger. When people come to an unfamiliar environment, they often need location information to provide navigation; when an emergency occurs, rescuers also need the location information of the person being assisted to quickly rush to the scene for assistance. Location information has gradually become more and more important information in people's lives. [0003] The satellite navigation positioning method can provide a positioning accuracy of about 10m. Although the accuracy is relatively high, the current mobile terminal gene...

AI Technical Summary

Problems solved by technology

The method of using TDOA positioning does not need to know the specific time of signal propagation, and can also eliminate or reduce the common error caused by processing delay on all receivers. Under normal circumstances, the positioning accuracy is higher than that of the TOA method, but it is also affected by the environment. , under complex terrain, there will be a huge error, especially the error caused by the non-line-of-sight (NLOS) has not been effectively solved so far

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