A.ECM-IDLE B.ECM-Connected C.EMM-DEREGISTERED D.URA_PCH
A.RNC B.eNodeB C.Adjacency D.Cell
A.基于無線質量的切換 B.基于無線接入技術覆蓋的切換 C.基于負載情況的切換 D.基于調度算法的切換