You need to import the license file obtained from Spirent on the controller PC in order to do the LTE RF/SVLTE LTE RF testing, the procedure is as below:
1, Copy the license file to any of the locations onto the controller PC.
2, Import the licence file using the tool provide in the installation folder of 8100 LTE DVD, find the folder \LTE RF Performance\E2010 Utilities,
3, Run the tool License Installer v1.0 Release 4195.exe, and then you select applications tab, you can see the license file selecion on the lower left hand of the software.
4, Click it and import the license file you copied on Step 1.