Patent ID: 8102811

Claim:
A method for receiving information in a mobile terminal, the method comprising: establishing a second layer (L 2 ) connection with an accessible link of a heterogeneous network; and receiving in a unified interface a Link Up message comprising an Internet protocol (IP) renewal indicator and at least one of a link identifier, an address of an old access router and an address of a new access router, from a lower layer when the second layer (L 2 ) connection with the accessible link is established, the unified interface being located above the lower layer in the mobile terminal and managing messages to and from the heterogeneous network, wherein the IP renewal indicator indicates whether an IP address is to be changed, wherein the Link Up message further comprises information indicating a type of mobility management protocol supported by the heterogeneous network, wherein the information comprises a bitmap comprising bits, each bit being indicative of whether a corresponding type of mobility management protocol supported or not by the heterogeneous network, and wherein Link Up message is sent from the unified interface to an upper layer.