9 RRC Connection Reconfiguration Complete
4 Handover Request Acknowledge
10 Handover Notify
T-eNB
11 UE Context Release Command
MME
3 Handover Request
2 Handover Required
7 eNB Status Transfer
S-eNB
12 UE Context Release Complete
8 MME Status Transfer
5 Handover Command
1 Measurement Report
Data forwarding begin
UE
6 RRC Connection Reconfiguration
