EUTRA频内频间基于覆盖的切换由后台___、___参数分别来控制频内、频间是基于事件的切换算法还是基于周期的切换算法
A.IntraF Handover Method
B.InterF Handover Method
C.Intra-frequency Handover Strategy
D.Inter-frequency Handover Strategy
正确答案是AB