Patent ID: 9326305
Filing Date: 2016-04-26
CPC Classification: H04L,H04W

Claim Text:
1. A communication node comprising: a receiver, which, in operation, receives a binding update message generated by a mobile node that has a plurality of communication interfaces operable to connect to a home network and a foreign network, the binding update message including a mobility option with a flag in the mobility option set to 1 and with a care-of address field in the binding update message set to a home address of the mobile node, when at least one of said plurality of communication interfaces is additionally connected to the home network while another communication interface is already connected to the foreign network; and a transmitter, which, in operation, transmits a packet to the mobile node, wherein the transmitter sets the home address as a destination address of the packet when the communication node receives the binding update message that includes the mobility option with the flag in the mobility option set to 1 and with the care-of address field in the binding update message set to the home address of the mobile node.