Patent ID: 8547936
Filing Date: 2013-10-01
Classification: H04W

Abstract:
1. A method of providing a handover service to a mobile communication terminal supporting multi-modal communications, the method comprising: transmitting and receiving data to/from a corresponding node via a first access network and a second access network, while simultaneously maintaining an association with the first access network and the second access network; determining a point in time of completing a handover registration; and releasing an association with the first access network after the point in time of completing the handover registration, wherein the determining comprises transmitting a request message for the handover registration to the corresponding node via the second access network, receiving, via the first access network, a completion message of the handover registration from the corresponding node in response to receiving the request message for the handover registration, and determining the point in time of receiving the completion message of the handover registration as the substantially same point in time of completing the handover registration.