Group location method based on location measurement samples in mobile communication network

A technology of mobile communication network and positioning method, applied in the field of positioning in mobile communication network, to achieve the effect of improving positioning accuracy, ensuring positioning accuracy, and reducing calculation workload

Inactive Publication Date: 2011-12-21
BEIJING UNIV OF POSTS & TELECOMM
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  • Description
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Problems solved by technology

How to make full use of the measurement data of many mobile terminals in the network can not only improve the positioning accuracy, but also quickly and conveniently rea

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  • Group location method based on location measurement samples in mobile communication network
  • Group location method based on location measurement samples in mobile communication network
  • Group location method based on location measurement samples in mobile communication network

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Embodiment Construction

[0025] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0026] The present invention is a group positioning method based on position measurement samples in a mobile communication network on the network side: first, the mobile terminal to be tested sends a pilot signal to the base station, and the base station obtains the measurement information of the mobile terminal from the received signal ( For example, the signal arrival time TOA (Time Of Arrival) and signal received power W) can be obtained in the GSM network, and the measurement data vector is composed of these two measurement data and the plane coordinates (x, y) of the position of the mobile terminal to be measured (TOA, W, (x, y)); each base station calculates the positioning of each mobile terminal according to the received measurement data vec...

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Abstract

The invention relates to a group positioning method based on a location measurement sample in a mobile communication network, which comprises the steps that mobile terminals to be tested transmit pilot signals to base stations at first, the base stations obtain the signal time of arrival (TOA) and the signal receiving power W of each mobile terminal from received signals, and the two measurement data and the plane coordinates (x, y) of the locations of the mobile terminals to be tested form measurement data vectors (TOA, W (x, y)); and after each base station calculates the positioning location of each mobile terminal according to the received measurement data vector of each mobile terminal, in combination with the data of a spatial location codebook and a location measurement sample database, each base station transmits the positioning location information to the corresponding mobile terminal. The group positioning method based on the location measurement sample in the mobile communication network has the advantages that in combination with history measurement data in a cell and the measurement parameters of the current multiple mobile terminals, only one time of positioning calculation is required, the group positioning demands of multiple users can be satisfied, the positioning accuracy is high, the measurement data can be obtained very easily and conveniently and the method is suitable for all kinds of existing mobile communication systems.

Description

technical field [0001] The invention relates to a positioning technology in a mobile communication network, more precisely, to a method for performing accurate group positioning by using position measurement samples of a plurality of mobile terminals in a mobile communication network, and belongs to the technical field of mobile communication. Background technique [0002] With the rapid development of mobile communication, the mobile positioning service carried out in the mobile communication system is also more and more concerned and applied by many users. Currently, there are three commonly used mobile positioning methods: [0003] (1) Positioning method based on time measurement, that is, time of arrival TOA (Time Of Arrival) or time difference of arrival TDOA (Time Difference Of Arrival): by detecting the propagation time of radio waves transmitted from the base station to the reception of the mobile terminal, the distance between the two is calculated , and then calcu...

Claims

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Application Information

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IPC IPC(8): H04W64/00
Inventor 牛凯许文俊卢臻臧玉凤
Owner BEIJING UNIV OF POSTS & TELECOMM
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