Handover from EUtran to Utran

Call Flow Script:
participant UE

participant EUtran

participant Utran

EUtran->UE: Mobility from EUtran Command/ ERRC

UE->Utran: Handover To Utran Complete/ RRC

Utran->UE: Security Mode Command/ RRC

UE->Utran: Security Mode Complete/ RRC

Utran->UE: Utran Mobility Information/ RRC

UE->Utran: Utran Mobility Information Confirm/ RRC

UE->Utran: Routing Area Update Request/ GMM

Utran->UE: Identity Request/ GMM

UE->Utran: Identity Response/ GMM

Utran->UE: Authentication and Ciphering Request/ GMM

UE->Utran: Authentication and Ciphering Response/ GMM

Utran->UE: Security Mode Command/ RRC

UE->Utran: Security Mode Complete/ RRC

Utran->UE: Routing Area Update Accept/ GMM

UE->Utran: Routing Area Update Complete/ GMM

Related Topics
Handover Utran to EUtran