Alcatel Lucent

Alcatel N.v.

Thomas-Rolf Banniza

Ralf Klotsche

Dietrich Bottle

Michael Scharf

Bernd Gloss

Klaus Wünstel

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.

Concept for providing information on a data packet association and for forwarding a data packet

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 (v) at which a quality threshold is reached with the used radio transmission technology in the case without a Doppler compensation.

Doppler compensation control for radio transmission

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.

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Schwieberdingen, Germany

Thomas-Rolf Banniza