Mobility management system and method for internet protocol based low power wireless network

A device for managing a mobility connection, comprising;

• a processor in communication with a memory, the memory including code which when accessed by the processor causes the processor to:
• detect movement of a mobile router supporting a mobility to a first personal area network (PAN) based on Internet Protocol version 6 (IPv6);
• determine whether the movement of the mobile router is an intra-network movement or an inter-network movement;
• transmit, when the movement is the intra-network movement, an intra-network neighbor discovery request message to a gateway of a second PAN;
• and
• receive an intra-network neighbor discovery response message containing a temporary address transmitted by the gateway of the second PAN in response to the intra-network neighbor discovery request message without creating and sending a subsequent binding update message to the gateway of the second PAN,
• wherein the intra-network movement of the mobile router is a change or a connection link from one node to another node, the nodes belonging to the second PAN.