Road test method and system based on GNURadio and USRP

Abstract

The invention discloses a road test method and a road test system based on GNURadio and USRP. The method comprises the steps as follows: the USRP is used for receiving a radio signal of a set frequency band, the USRP primarily processes the received radio signal to form a base band signal, and PC performs operational treatment on the base band signal and draws a spectrogram of the radio signal with the set frequency band; a master cell frequency point of a current location in the spectrogram is acquired according to the radio signal spectrogram; the radio signal on the master cell frequency point is collected, and the collected radio signal on the frequency point of the master cell is demodulated; the spectrogram of the master cell frequency point is drawn according to the demodulated radio signal, and the demodulated radio signal is analyzed to acquire an analysis result. The method and the system provided by the invention have the beneficial effects as follows: the USRP is connected with PC, the USRP is used for receiving the radio signal and primarily processing the radio signal, and the PC is further used for analyzing and processing the radio signal, so that the spectrogram is drawn and road test data is acquired, the cost is low, flexible programming can be achieved to meet different business requirements, the upgrade is flexible and convenient, and the use is convenient.

Description

technical field [0001] The invention relates to the field of mobile communication drive test, in particular to a drive test method and system based on GNU Radio and USRP. Background technique [0002] As the GSM network scale and the number of users continue to grow, the mobile networks of major operators all have considerable scale. How to improve the quality of network service in the shortest time and improve the core competitiveness of enterprises has attracted more and more attention. During the operation of the network, various unpredictable problems often occur, such as base station hardware failures, transmission problems, etc., which can be found through the network operation and maintenance equipment (OMC). It is difficult to find in the statistics of the line. For these problems, it is necessary to collect and analyze data through road tests, make accurate judgments, and propose adjustment plans based on test results. These test data include: signal level, signa...

AI Technical Summary

Problems solved by technology

There are two main shortcomings of this type of instrument: First, in the face of the rapid development of mobile communication systems, equipment and terminals, the development of reference terminals needs to be further improved and strengthened

Secondly, since the reference terminal is improved from a common terminal, its RF signal measurement accuracy is very limited and its service life is short

Images