Patent ID: 8040851
Filing Date: 2011-10-18
Classification: H04W

Abstract:
1. A method of reducing handover time in a mobile Internet protocol network, the method comprising: when a terminal carries out a handover between mobile Internet protocol sub-networks of a foreign agent, determining, at the foreign agent, whether a registration request message from the terminal is transmitted from a terminal registered in a visitor list of the foreign agent; when the registration request message is transmitted from a terminal registered in the visitor list, updating interface information of a corresponding one of the sub-networks to which the terminal registered in the visitor list is connected; and generating a registration reply message in response to the registration request message and transmitting the registration reply message to the terminal, wherein generating the registration reply message in response to the registration request message and transmitting the registration reply message to the terminal comprises generating and transmitting the registration reply message without forwarding or transmitting the registration request message to a home agent of the terminal.