Abstract: A Local Mobility Anchor/Agent (LMA), on seeing a Proxy Binding Update (PBU) with a same Network Access Identifier (NAI) but with a different access technology indication or interface identifier can assign a unique prefix to a mobile node (MN) via a PBAck message. The unique prefix avoids the creation of a duplicate address that would conflict with the address assigned to another interface that was configured using a prefix provided by the LMA. This solution can enable an MN to attach to different Mobility Access Gateways (MAGs) that are in different access networks of differing technologies but attached to the same LMA (i.e. the MAGs and the LMA are in the same PMIP6 domain) and not cause conflicts in prefix assignment or confuse the LMA into thinking that the MN had performed a handover (HO).

Abstract: An apparatus and method are provided in which multiple options are configured to deliver a base-station ID (BSID), which acts as a trigger for an initiation of a handover at an access gateway level. The handover triggers may be based on a proactive handover between at least one mobile station and a gateway and base station in a serving and target networks or on a reactive handover in which the at least one mobile station does not perform any handover preparation prior to the handover. In addition, the handover trigger may be based on a network initiating and controlling the handover.

Abstract: A method and a device for processing data are provided, the device includes a first network element sends a message to a second network element thereby informing the second network element about a change of attachment of a third network element.

Abstract: It is disclosed a method comprising transmitting an identifier for identifying at least one network capability related to mobile internet protocol, wherein the identifier is configured to indicate capability or incapability of mobile internet protocol support, and a method comprising receiving an identifier for identifying at least one network capability, and retrieving an address from the network based on the identifier.

Abstract: A method for updating filters, at a Packet Data Serving Node, with a care-of-address associated with at least one of a mobile station or a correspondent node. The method includes the steps of implementing a soft filtering rule at a Packet Data Serving Node and receiving, by the Packet Data Serving Node, a care-of-address that is associated with at least one the mobile station and a correspondent node. The method also includes updating, by the Packet Data Serving Node, filters with the care-of-address to correctly identify flows belonging to a particular session during Mobile IP use. The method further includes filtering, by the Packet Data Serving Node, packets including a care-of-address that is associated with one of the mobile station and the correspondent node.

Abstract: A method for updating filters, at a Packet Data Serving Node, with a care-of-address associated with at least one of a mobile station or a correspondent node. The method includes the steps of implementing a soft filtering rule at a Packet Data Serving Node and receiving, by the Packet Data Serving Node, a care-of-address that is associated with at least one the mobile station and a correspondent node. The method also includes updating, by the Packet Data Serving Node, filters with the care-of-address to correctly identify flows belonging to a particular session during Mobile IP use. The method further includes filtering, by the Packet Data Serving Node, packets including a care-of-address that is associated with one of the mobile station and the correspondent node.

Abstract: This invention relates to communication arrangements between communication networks, specifically to arrangements allowing networks of different types to cooperate. The invention provides a method for providing packet data services for a mobile station homed in a second wireless communication network in a first wireless communication network, where the first and second wireless communication networks are based on different standards.

Abstract: A method, terminal, backend network entity, and system for discovering a network element in a communication system for a terminal, wherein the terminal is establishing a connection to a first part of the communication system, the discovering of the network element comprising a step of retrieving a network address of the network element from a backend network entity of the communication system, wherein the step of retrieving constitutes a part of an authentication of the terminal at the first part of the communication system by means of the backend network entity. Further, the retrieving can be based on a subscription profile of the terminal and/or a database at the backend network entity.

Abstract: This invention relates to communication arrangements between communication networks, specifically to arrangements allowing networks of different types to cooperate. The invention provides a method for providing packet data services for a mobile station homed in a second wireless communication network in a first wireless communication network, where the first and second wireless communication networks are based on different standards.

Abstract: A method for updating filters, at a Packet Data Serving Node, with a care-of-address associated with at least one of a mobile station or a correspondent node. The method includes the steps of implementing a soft filtering rule at a Packet Data Serving Node and receiving, by the Packet Data Serving Node, a care-of-address that is associated with at least one the mobile station and a correspondent node. The method also includes updating, by the Packet Data Serving Node, filters with the care-of-address to correctly identify flows belonging to a particular session during Mobile IP use. The method further includes filtering, by the Packet Data Serving Node, packets including a care-of-address that is associated with one of the mobile station and the correspondent node.

Abstract: The invention provides for disabling communication at the access router on a visited network that supports mobile IP v6 and the home address destination option. Until a home agent or a correspondent node authenticates the home IP address of the mobile node and the access router verifies this address, the mobile node is unable to communicate with other resources over the visited network. If the home IP address included in a binding acknowledgement message is verified by the access router and affirmatively compared to the state of a corresponding binding update message from the mobile node, the access router enables subsequent messages to be communicated over the visited network between the mobile node and other resources.

Abstract: A method of configuring routers facilitates handoff of user equipment from a router to another router. The method includes configuring a virtual interface in a current router used by user equipment. The method also includes assigning a global address to the virtual interface. The global address is assigned to the virtual interface that is used to facilitate handoff of the user equipment from a current router to a new router. A system, router and user equipment are configured to implement the method.

Abstract: A method and system that each allow for communication between a first network and a second network. The first and second networks typically operate in accordance with different protocols and a user associated with the first network is typically connected to the second network. The method includes determining when a routing entity is associated with at least one of the networks. The method also includes using a gateway for traffic when the routing entity is associated with one of the network. Further, the method includes using tunnelling for the traffic when the routing entity is associated with the other of the networks.

Abstract: A system for selectively updating an address of a mobile node capable of roaming in a home communication network and at least one visited network. The system including a database for storing at least one data entry which is a mapping between a humanly-readable identifier indicating the mobile node and a machine-readable identifier indicating a physical address at which the mobile node can be reached. A home agent in the home network has a connection to the database, and is operable to receive an update message from the mobile node when the mobile node roams into the visited network. Also there are units for determining whether the machine-readable identifier of the at least one entry in the database should be updated, wherein the database is updated if the update message additionally includes the humanly-readable identifier.

Abstract: A method of communication that includes sending a first message from user equipment to a server, requesting a home agent and/or a home address. The method also includes authenticating the user equipment and providing the home agent and/or home address only when the user equipment is authenticated. Also, a communication system, a server, and user equipment that are configured to implement the method.

Abstract: A method of establishing a communication in a mobile communication system includes two steps. The mobile communication system includes a core network and at least one user equipment connected thereto via a radio access network. The method includes providing at least two types of domain for carrying a predetermined datastream for the communication in the core network. The method also includes providing one of the types of domain for carrying the predetermined datastream in the radio access network.

Abstract: The invention provides a method and system for allowing communication between a BSS and SGSN, each having an NS-VC table and utilizing a different mode of communication. For example, a BSS may utilize associating UDP with NSE and IP with NS-VC and the SGSN may utilize associating UDP with NS-VC and IP with NSE. The method and system provides for the construction of an NS-VC table correlating the NS-VC table of the BSS and SGSN. Therefore, the method and system provides for the conversion of a data packet having UDP associated with NS-VC and IP associated with NSE to UDP having association with NSE and IP having association with NS-VC and vice versa. An NS-VC table may be constructed from information provided from a negotiations procedure or normal communications. The constructed NS-VC table allows for communications between the mobile communications architecture and the packet switched architecture, without requiring compatible utilization of UDP and IP.

Abstract: A status information system for use in a communications network. The status information system comprises information management means through which a first entity operable in the network can request to receive status information about one or more specified other entities of the network and which means is arranged to obtain the said status information. The system further comprises delivery means through which the first entity can receive status information about other entities of the network. The delivery means is arranged: (i) to receive status information about entities of the network including to receive from the information management means the said status information about the specified one or more entities, and (ii) to authenticate the received status information.

Abstract: A mechanism for optimizing an establishment of a communication connection between a mobile node and a correspondent node in a packet based communication network using, for example, IP is proposed. After starting an application level communication connection setup, for example SIP based, between the mobile node and the correspondent node via a communication subsystem infrastructure, for example the IM subsystem infrastructure, a trigger signal comprising the address of the correspondent node is transmitted from the SIP layer to the IP layer in the mobile node via an interface. In response to the trigger signal, an IP level route optimization procedure is performed while the application level communication connection setup proceeds.

Abstract: Apparatus, and an associated method, for a mobile communication system in which handovers of communications are effectuated between access points of the communication system as a mobile node travels there through. A manner is provided by which to perform handover evaluation functions more efficiently by performing at least some of the handover evaluations at the access point to which a mobile node is attached. And, a manner is provided by which to provide care-of-addresses formed of temporary identifiers to temporarily identify a mobile node to permit the routing of packet data thereto during a communication session.