Abstract: In an apparatus for forwarding a present data packet from a present source network entity to a present destination network entity, the present destination network entity is selected from a plurality of destination network entities. The apparatus receives the present data packet and selects the present destination network entity based on a load balancing criterion. The apparatus forwards the present data packet to the present destination network entity and receives a response data packet from the present network destination entity. The response data packet includes information on a data packet association. The data packet association is an association between a plurality of different data packets belonging to a data session between a data source and a data destination. The apparatus stores the information on the association.

Abstract: The method involves transmitting Ethernet packets between two or more Ethernet LANs through an interconnecting IP network. Each of the Ethernet LANs is connected to the interconnecting IP network by means of a respective customer edge device. An exchange between the customer edge devices of control information associated with the Ethernet packet transmission is processed and controlled by a centralised server connected to each of the customer edge devices via a control connection.

Abstract: In an apparatus for forwarding a present data packet from a present source network entity to a present destination network entity, the present destination network entity is selected from a plurality of destination network entities. The apparatus receives the present data packet and selects the present destination network entity based on a load balancing criterion. The apparatus forwards the present data packet to the present destination network entity and receives a response data packet from the present network destination entity. The response data packet includes information on a data packet association. The data packet association is an association between a plurality of different data packets belonging to a data session between a data source and a data destination. The apparatus stores the information on the association.

Abstract: A Doppler compensation method is used for radio transmission between a mobile body possibly but not exclusively a train and some base station, both mobile body and base station comprise respectively a transceiver connected to an antenna for the radio transmission. The method comprises the step of determining the direction of motion of the mobile body with respect to the active base station i.e. the base station to which a radio transmission link is just built. The method is then followed by the step to apply a constant Doppler compensation corresponding to the cancellation of the Doppler effect for a mobile body moving in the same direction at predefined limiting speed of motion (vlimit) at which a quality threshold is reached with the used radio transmission technology in the case without a Doppler compensation.

Abstract: A Doppler compensation method is used for radio transmission between a mobile body possibly but not exclusively a train and some base station, both mobile body and base station comprise respectively a transceiver connected to an antenna for the radio transmission. The method comprises the step of determining the direction of motion of the mobile body with respect to the active base station i.e. the base station to which a radio transmission link is just built. The method is then followed by the step to apply a constant Doppler compensation corresponding to the cancellation of the Doppler effect for a mobile body moving in the same direction at predefined limiting speed of motion (vlimit) at which a quality threshold is reached with the used radio transmission technology in the case without a Doppler compensation.

Abstract: The goal of the invention is to keep the delay of a communication signal between a moving vehicle (mobile body) and a fixed base station constant. This is achieved by a Doppler compensation method for data to be transmitted within frames via radio transmission between a mobile body and some base station, both mobile body and base station comprise respectively a transceiver connected to an antenna for the radio transmission. The method comprises the step of determining the Doppler effect acting on the frames when transmitted as a signal through that radio transmission for a given speed and direction of motion of the mobile body with respect to the base station. It is then followed by the step to apply by the transceiver some sampling procedure comprising an allocation of different time delays to the signal, the different time delays being chosen following a law adapted to compensate the determined Doppler effect.

Abstract: A method for extending the service coverage of a radio access system comprising a main base station (MBS) serving a plurality of subscriber units (SU1 to SU4) in a service coverage area (CA), in which at least one hybrid intermediate unit (HIU) acts as a wireless relay station for transmission of information between the main base station (MBS) and one or more subscriber units (SU3 and/or SU4) located outside the service coverage area (CA) of the main base station, and in which the hybrid intermediate unit (HIU) behaves both as a subscriber unit of the main base station (MBS) and as a base station serving the one or more subscriber units (SU3 and/or SU4) located outside the service coverage area (CA) of the main base station.

Abstract: A method for supporting mobility of at least one mobile telecommunications terminal (5.1-5.3) in operative connection with a telecommunications network (2) having a plurality of telecommunications resources (3.1-3.6) accessible via a plurality of access networks (4.1-4.3) and associated access technologies (4.1a,b-4.3a,b) in operative connection with the telecommunications network (2), wherein the mobile telecommunications terminal (5.1-5.3) is provided with information about access networks (4.1-4.3) and access technologies (4.1a,b-4.3a,b) available at least at its present geographic location for choosing an access to the telecommunications network (2) via one of the respective access networks (4.1-4.3) and associated access technologies (4.1a,b-4.3a,b) in accordance with specifications of at least one telecommunications resource (3.1-3.6) requested by the mobile telecommunications terminal (5.1-5.3), and wherein the information are provided independently of the access networks (4.1-4.

Abstract: The present invention relates to a method of operating a communications network, wherein resources required for transmitting data within said communications network, in particular for transmitting data from a subscriber station to a first base station, are granted depending on a request for said resources. At least one further base station is provided with scheduling information related to said request for said resources.

Abstract: The invention relates to a method for setting up telecommunications connections, in particular packet-switched telecommunications connections, in the access area (SN, LM) of a local access (ER) comprising the following steps:

Abstract: The present invention concerns a method for the manipulation-proof separation of message streams, which are transmitted in the subscriber loop (3) of a communication network via a medium (30) that is common to several subscribers, where first measures (22, 43) are taken to separate the message streams for transmission via the common medium, which are identical for all message streams, and for connections between at least one subscriber (4) connected to the communication network via the common medium, and another subscriber, supplementary measures (111, 112, . . . , 11n; 42) are taken from end to end, which were agreed between these subscribers for these connections, as well as a suitable system and a suitable subscriber facility.