SOFTWARE DEFINED NETWORKING DISTRIBUTED AND DYNAMIC MOBILITY MANAGEMENT

摘要

A method and apparatus are described for supporting advanced distributed and dynamic mobility management (DMM) features with multiple flows anchored at different gateways. A software defined networking (SDN) controller may support the attachment of a wireless transmit/receive unit (WTRU) to a network. The SDN controller may receive initial attachment signaling from a point of attachment (PoA) indicating that the WTRU initially attached to the network. The anchor node may be a distributed gateway (D-GW). The SDN controller may select an anchor node to serve the WTRU Internet protocol (IP) flow traffic. Initial attachment signaling, intra-anchor node handover, inter-anchor node handover, new anchor node allocation and inter-domain mobility across virtualized operators are also described.

主权项

1. A method for use in a software defined network (SDN) controller of a network, comprising:
receiving an initial attachment signaling from a first point of attachment (PoA) node indicating that a wireless transmit receive unit (WTRU) is attached to the network; determining if the WTRU is currently attached to the network by checking a database; selecting a first anchor node to provide connectivity to the WTRU, wherein the selecting the first anchor node is based on at least one of the following criteria: expected mobility patterns of the WTRU, known mobility patterns of the WTRU, speed of the WTRU, status of the network, load of the network, or capabilities of the network; configuring a forwarding data plan plane to allow signaling to reach the first anchor node; and configuring the forwarding data plane between the first anchor node and the WTRU to allow data packets to be forwarded between the WTRU and the first anchor node.