System and method for service continuity in heterogeneous wireless networks

A system for service continuity in heterogeneous wireless networks, which applies to at least two network devices, and each of said network device comprises at least one processor which performs functionalities of said system, and said system comprising:

• a handover decision module that is responsible for maintaining link layer association and network layer reachability of each of plural underlying network interfaces;
• a session continuity module, that provides a session ID when a session is initialized and a session sequence number per packet in the same session, and that provides service continuity and concurrent multipath transmission for a plurality of applications, by determining which said underlying network interfaces to use to establish at least one transmission path with a corresponding device;
• when a network device acting as a sender, the session continuity module sends out data packets to said corresponding device from at least one transmission path;
• and when said network device acting as a receiver, the session continuity module merges and reorders said data packets it receives from said corresponding device, regardless IP addresses and ports of said data packets and
• a cross-layer cooperative module interacting with, and performing command and information services for, said application programming interface, said handover decision module, and said session continuity module.