Interference Measurement Between 3.5 GHz 5G System And Radar

Interference test was performed between the 3.5 GHz 5G system assigned recently and the radar operating in adjacent band. For interference test in the field, a 3.5 GHz 5G system was installed and the interference effect was analyzed with the data rate of the 5G system when the radar transmitted three transmission modes individually. From a results of the test, we found that uplink data rates of 5G system at UE RSRP=-100 dBm were almost not affected by interference, although the radar received powers were as high as -52.9~-74.6 dBm/MHz. This was analyzed to be due to characteristics of radar signal such as narrow antenna beam width and short pulse width, and error recovery ability of 5G mobile system.