Wireless Oom

Here, for example, Squal <= Sintersearch in SIB3/4

Then, the UE starts to measure the signal strengths of neighboring cells.

Rs = Qmeas,s + Qhysts
Rn = Qmeas,n – Qoffset,n

Rs is for the serving cell and Rn is for neighbor cell.
Qhysts is for reduce ping-pong effects between serving and neighbor cells.
Qoffset,n is an offset parameter between the serving and the neighbor cells.

Pick the best cell with the largest R value.