X2 Connection Between eNBs Connected Across Different MMEs

A computer-readable medium containing instructions which, when executed on a processor at a management entity in a mobile network, cause the management entity to perform operations, the operations comprising:

• receiving, at a first management entity, a message from a target base station reflecting a requested X2 handover, the message including a globally unique management entity identifier;
• determining, at the first management entity, that the target base station identified in a received configuration transfer message from a source base station is not managed by the first management entity;
• and
• receiving, at the first management entity, a transport layer address of the target base station from a second management entity, thereby providing handover across management entities.