Patent ID: 8498268

Claim:
A method for performing a handover of network connections upon a mobile terminal moving from a first access network to a second access network, the method comprising: obtaining, through the first access network, Internet Protocol (IP) connectivity and a first IP address for the mobile terminal, wherein the first IP address is associated with a first packet data network gateway; obtaining, through the first access network, a second IP address for the mobile terminal, wherein the second IP address is associated with a second packet data network gateway, wherein the second data network gateway is different from the first data network gateway, and wherein the second IP address is different from the first IP address; and in response to the mobile terminal moving from the first access network to the second access network, i) sending a first request, by the mobile terminal over the second access network, for a first new IP connectivity and the first IP address, wherein the first request indicates a need to handover network connections associated with the first packet data network gateway from the first access network to the second access network, and wherein the first request includes the first IP address, and ii) sending a second request, by the mobile terminal over the second access network, for a second new IP connectivity and the second IP address, wherein the second request indicates a need to handover network connections associated with the second packet data network gateway from the first access network to the second access network, and wherein the second request includes the second IP address.