Currently

the redistributions of a large number of frequency ranges are involved in the 5 G deployment of operators. 5 G industry business faces a complicated electromagnetic environment again. Therefore

how to locate the 5 G interference source accurately and effi ciently becomes an important topic that is highlighted by the industry. In the paper

a 5 G mobile communication interference signal positioning system

which innovatively uses dual-orientation of direction

four antenna reception and high-precision screening and positioning

which can locate the interference source in real time and with high precision.It also realized the automatic processing of the entire f ow including test

analysis and order distribution

which signifi cantly improved the troubleshooting effi ciency of 5 G network interference and provided a new solution to the operators’ 5 G troubleshooting.