Sometimes you will encounter voice call drop for some of the locations in the chamber, this is mainly because the Rx signal and Tx signal transmitted from UE is not balance, in order to improve this issue.
You should do following configure:
1, Find .tcf from below location:
C:\Program Files\Spirent Communications\TestDrive ULTS\Test Configuration Files\AAHS Configuration\SingleCell.tcf
2, Using txt editor to do the following modify:
Change all 5 value with the name :
CELL_RESELECT_RX_LEV_MIN = -79 to below:
CELL_RESELECT_RX_LEV_MIN = -109