Terminal positioning equipment and positioning method of 5G network

Abstract

The invention discloses terminal positioning equipment and a positioning method for a 5G network. The method comprises the following steps that the terminal positioning equipment executes the following steps: sending a continuous measurement command; at the current position of the mobile 5G base station, simultaneously measuring the signal strength RSSI value of an orthogonal frequency division multiplexing (OFDM) signal of an uplink signal of the 5G terminal in the front, back, left and right directions through a directional antenna; when it is judged that the signal strength RSSI value in a certain direction is the maximum value, according to the direction and the signal strength RSSI maximum value, moving to the next position in the corresponding direction, measuring the signal strength RSSI value, judging the moving position, and determining the position of the 5G terminal through a successive approximation mode. According to the invention, based on a single 5G mobile base station system, in combination with an uplink RSSI measurement value of a directional antenna to a terminal, the need for auxiliary positioning information of multiple base stations, WIFI or GPS and the like and the need for data processing are reduced; and the positioning precision in an indoor environment is greatly improved, so that the working efficiency is greatly improved, and the problem that accurate positioning cannot be realized in some scenes is solved.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to a terminal positioning device and a positioning method for a 5G network. Background technique [0002] The 5G mobile network is composed of wireless access network, core network, service network, etc., among which the wireless access network is an important part, responsible for the realization of services such as air interface connection management, mobility management, and service completion from the terminal to the core network. . As the air interface between the terminal and the service network provided by the 5G mobile network, the radio access network's signaling plane processing flow and messages play an important role in the user's 5G network access. [0003] Therefore, in various eras of wireless networks, there are the following terminal positioning methods. One is to jointly measure the position information of the terminal through the known positions of d...

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Problems solved by technology

The second is to roughly determine the location information of the terminal through the large and small cell identifiers carried by the terminal in the signaling, combined with the location of the base station corresponding to the large and small cells. In this way, the location information of the terminal has a large range and the positioning accuracy is rough, which cannot meet the requirements of some industries. Applications

[0004] The above positioning methods generally require more than three base stations. If combined with GPS or WIFI, RFID, Bluetooth, etc., the number of base stations will be reduced and the accuracy will be improved. But generally speaking, if you want to improve the location accuracy, it is usually It requires a large amount of data to be accumulated and processed. For example, the current taxi-hailing software and food delivery software basically use similar big data methods to provide location information; The data processing method cannot do without the corresponding data volume and processing capacity

For operators who need to measure RSRP, wireless network base station location, and information at the signaling level in the background in combination with terminals, and because of issues such as laws and regulations and network changes, it is impossible to determine the real-time location information of a specific terminal at any time. Secondly, the positioning accuracy of this method is still unsatisfactory.

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