Impact of different interference types on an LTE communication link using conducted measurements

Measurements have been used for the analysis of an LTE system, which may be used for vehicle applications. The analyzed system consists of an LTE communication tester simulating a base station and a mobile phone. To obtain repeatable measurement results the RF ports of the communicating nodes were connected with cables. The susceptibility of the mobile to interfering signals with various characteristics (CW, AM, FM and Pulse modulation) has been investigated. The result shows that interference on frequencies close to the center of data subcarriers is less severe than on frequencies further apart from the center. For the interfering signals on the pilot subcarrier a simple regression model based on the measurements has been calculated.