Establishing network address of mobile terminal in mobile communication system

A method for establishing a network address of a mobile terminal in a mobile communication system, the method comprising:

• performing handover of the mobile terminal to at least one of a homogeneous network and a heterogeneous network through a media independent handover function (MIHF) module of the mobile terminal, the MIHF module configured to provide convergence of information from at least one network interface module associated with one of a homogeneous and heterogeneous network into a unified presentation and deliver the converged information in the unified presentation to an upper layer of the mobile terminal;
• and
• sending an indication to the upper layer of the mobile terminal from the MIHF module of the mobile terminal for indicating whether a network address of the mobile terminal needs to be changed for communicating data prior to establishing the network address for the at least one of a homogeneous and a heterogeneous network.