Abstract: A method for the computer-aided determination of a control variable using context information from one or more units to be controlled is described. This method involves a controller using simulation to ascertain a piece of simulated context information which is used as a control variable, wherein the simulated context information comprises a first variable which represents a presumed state of the one or more units at a given time. The controller compares a received piece of context information, which comprises a second variable which represents the actual state of the unit to be controlled at a time which is before the given time, with the simulated context information and checks whether the simulated context information matches the context information within prescribed limits. In addition, the controller requests a piece of updated context information from one or more units to be controlled if the simulated context information matches the context information at the given time outside the present limits.

Abstract: In order to be able to flexibly and dynamically control the selection of an access network to be used by a mobile terminal, an assembly contains a cellular network which is provided with a core network and several access networks for connecting mobile terminals to the core network, and at least one mobile terminal. The mobile terminal is equipped with a decision unit at the terminal end to select the access network to be used by the mobile terminal while the cellular network encompasses a decision unit at the network end to select the access network to be used by the mobile terminal as well as a control device for controlling the decision unit located at the terminal end and at the network end.

Abstract: The present invention refers to establishing of a point-to-point connection between a mobile node and a network entity by use of an access link of the network entity, wherein the network entity is configured to manage mobility related signalling for mobile nodes attached to the access link of the network entity. According to the present invention, the mobile node is attached to the access link of the network entity. Further, a router advertisement message is transmitted from the network entity to the mobile node, wherein the router advertisement message comprises a home network prefix and a mobile node identifier. Then, a home address of the mobile node is configured from the home network prefix by the mobile node, if the node identifier represents a node identifier of the mobile node.

Abstract: A method for the computer-aided determination of a control variable using context information from one or more units to be controlled is described. This method involves a controller using simulation to ascertain a piece of simulated context information which is used as a control variable, wherein the simulated context information comprises a first variable which represents a presumed state of the one or more units at a given time. The controller compares a received piece of context information, which comprises a second variable which represents the actual state of the unit to be controlled at a time which is before the given time, with the simulated context information and checks whether the simulated context information matches the context information within prescribed limits. In addition, the controller requests a piece of updated context information from one or more units to be controlled if the simulated context information matches the context information at the given time outside the present limits.

Abstract: In order to be able to flexibly and dynamically control the selection of an access network to be used by a mobile terminal, an assembly contains a cellular network which is provided with a core network and several access networks for connecting mobile terminals to the core network, and at least one mobile terminal. The mobile terminal is equipped with a decision unit at the terminal end to select the access network to be used by the mobile terminal while the cellular network encompasses a decision unit at the network end to select the access network to be used by the mobile terminal as well as a control device for controlling the decision unit located at the terminal end and at the network end.

Abstract: The present invention comprises method and an apparatus for finding a path for routing a call from a source-node (SN) to a destination-node (DN) through a communication network. According to the invention the source-node (SN) generates a random-number and depending on the generated random-number at least one path between the source-node (SN) and the destination-node (DN) will be selected from the source-node (SN).

Abstract: A simple and efficient means of checking the registration authorization is proposed by the method and the device for checking the registration authorization prior to the start of the re-registration process based on a registration query from a mobile radio terminal to at least one access device for an intra-domain handover in a mobile communication network. In the network, a token which has been sent by an access device to a mobile radio terminal and has been stored in at least one trust table of at least one access device, is received by at least one further access device during a registration query from a mobile radio terminal and compared with tokens stored in at least one trust table prior to the start of the registration for the purpose of verifying the registration authorization, and the registration is started if an authorization is present.

Abstract: A simple and efficient means of checking the registration authorization is proposed by the method and the device for checking the registration authorization prior to the start of the re-registration process based on a registration query from a mobile radio terminal to at least one access device for an intra-domain handover in a mobile communication network. In the network, a token which has been sent by an access device to a mobile radio terminal and has been stored in at least one trust table of at least one access device, is received by at least one further access device during a registration query from a mobile radio terminal and compared with tokens stored in at least one trust table prior to the start of the registration for the purpose of verifying the registration authorization, and the registration is started if an authorization is present.

Abstract: The invention relates to a method for carrying out a QoS-oriented handoff between a first and a second IP-based, especially mobile IPv6-based, communication path, between a mobile node (MN) and a correspondent node (CN), the second communication path being part of a number of communication paths which can be accessed by the mobile node, with no, one, or a plurality of intermediate instances.