US 8,619,629 B2 · Mobile terminal and network node

Abstract

Disclosed is a technique for surely supporting multihoming for a mobile terminal (mobile node) moving in a local mobility domain. A mobile node (MN) 11 connects via an IF 110 to a mobile access gateway (MAG) 102 that supports multihoming, and further attempts to connect via an IF 111 to a MAG 103 that does not support multihoming. Under these conditions, according to this technique, when the MN recognizes that the MAG 103 does not support multihoming, the MN notifies a local mobility domain that the MAG 103 does not support multihoming if connection with the MAG 103 is not yet established, and notifies the local mobility domain of information on a connection to a local mobility domain other than the MAG 103 (connection with the MAG 102) if the connection with the MAG 103 is already established.

Claims23

Dependent claims

A mobile terminal moving in a local mobility domain in which network-based mobility management is performed and which supports multihoming, the mobile terminal comprising:

a plurality of communication interfaces which enable transmission and reception of packets through a plurality of paths and which respectively correspond to the plurality of paths;
and
a capability information notification unit, including a processor, configured to, in connecting at least one of the plurality of communication interfaces to one of connection nodes functioning as connection points in the local mobility domain, notify an entity in the local mobility domain of information indicating whether or not the connection node to which at least two of the plurality of communication interfaces are to be connected supports a multihoming function which includes a function of notifying the entity in the local mobility domain of information to allow the entity in the local mobility domain to perform a simultaneous binding registration to hold multiple binding entries related to the mobile terminal.

A network node in a local mobility domain in which network-based mobility management is performed and which supports multihoming for a mobile terminal connected to the local mobility domain, the network node comprising:

a routing cache for, in a case where a communication interface of the mobile terminal connects to one of connection nodes which function as connection points in the local mobility domain, holding a correspondence between the communication interface and the connection node as routing information;
a capability information reception unit, including a processor, configured to receive, from the mobile terminal, information indicating whether or not the connection node to which at least two of a plurality of interfaces included in the mobile terminal are connected supports a multihoming function which includes a function of notifying the entity in the local mobility domain of information to allow the entity in the local mobility domain to perform a simultaneous binding registration to hold multiple binding entries related to the mobile terminal;
and
a routing updating unit, including a processor, configured to update routing information for the mobile terminal in accordance with the information being received by the capability information reception unit and indicating whether or not the connection node supports the multihoming function.

1 more element

Dependencies are inferred from the claim text.

Mobile terminal and network node

Life of this patent

Mobile terminal and network node

Life of this patent

Abstract

Claims23