1.if you apply a license file just now, please open the license file, view what is the validdate
2.if the license had download to NE,there are some method to check the valid period:
a. for eNB:on the MML page,running the command DSP ELICENSE,you can view what is the Expire Time
b. for eAPP: you can login the eAPP management system,and click in sequence as following:OAM Business---operation maintenance--software management---License management,then you can find the License termination time of eAPP and eUDC