| 摘要 |
Systems, methods, apparatuses, and a computer program products for Mobility Management Entity (MME) triggered detach and re-attach to a specific target MME are provided. One method includes receiving or obtaining a trigger to move a UE attached to a source MME to another target MME. The receiving of the trigger may cause the initiating of a GUTI reallocation command towards the UE in which the MME code (MMEC) specifies the target MME and the M-TMSI is set to a reserved value. The method may further include receiving a GUTI reallocation complete message from the UE, sending a detach request to the UE with a detach type of "re-attach required," and receiving a detach accept message from the UE. The new attach request initiated by the UE is then directed towards the target MME. The target MME recognizes the reserved value, requests UE permanent identity with Identity Request message, UE responds with Identity Response specifying the permanent identity, and the registration with Attach towards the target MME continues. |
