KCL:由于信号强度问题而引起的切换请求数(爱立信系统中也叫K算法请求)
HOEXCTA:Number of handovers due to exceeded time alignment
HOTOKCL:Number of handovers to better internal K-cell
HOTOHCS:Number of non-urgency handovers to internal cell due to Hierarchical Cell Structure (HCS) ,This counter is increased when a channel allocation, due to handover to the neighbour, is made and the cause code is "Better cell, due to HCS".