WMM is the assigning and controlling of wireless links for terminal network connections. Mobility Management, originated from mobile communications systems, has always been a principal capability of subsequent evolving networks. More mobility requirements for the Internet emerged with the development of broadband wireless access technologies. Dedicated solutions such as Mobile Internet Protocol (Mobile IP) were proposed by the IETF for mobility management in the Internet.
The coexistence of various heterogeneous access networks, new services, and application requirements, along with numerous different types of mobile terminals, raises new challenges for mobility management technology.