Terminal cluster registration method, apparatus, system and core network device

The present disclosure relates to a terminal cluster registration method, apparatus, system and core network device, wherein said terminal cluster registration method comprises: a mobile management entity responding to a standard LTE mobile process executed by a terminal, wherein the cluster registration context of said terminal is requested from the mobile management entity in which the terminal is located before said terminal moves; adding terminal location information and said cluster registration context to a cluster registration message, obtaining the cluster registration message carrying said terminal location information and cluster registration context; sending said cluster registration message to a corresponding cluster control functional entity, cluster registration being carried out by proxy for said terminal in said cluster control functional entity. Said terminal cluster registration apparatus, system and core network device match with said terminal cluster registration method. The present disclosure allows cluster registration of a terminal to be carried out by a mobile management entity by proxy once the terminal has moved between mobile management entities, thus avoiding the problem of relying on active triggering of a terminal in the prior art.