what is S-measure in Measconfig IE?

Question

How to calculate S-measure in meas config?
From where Enb will get this information and send it to UE as a part of reconfig?
And significance of threshold, hysteresis, offset?

Answer 1

S-measure in measConfig tells UE when to start measurement. S-measure can have one value from 0 to 97.
0 signifies measurement is disabled. If S-measure has non-zero it means once UE receives RSRP more than value of S-measure for primary cell, it starts measuring cells as per configuration (Measconfig) given by eNodeB in rrc connection reconfiguration message.