Deutschetelekom Ag

Fachhochschule Giessen-friedberg

Fachhochschule Gießen-friedberg

Bangnan Xu

Jatinder Pal Singh

Gerhard Kadel

Gerd Zimmermann

Nico Bayer

Sven Hischke

Dmitry Sivchenko

Erik Weiss

Matthias Dr Siebert

Josef Dipl-Phys Kraus

Dimitri Sivchenko

David Hock

Sascha Kilb

A method for handing-off a mobile node (MN) from one network interface to another network interface, the network interfaces being connected to a same level 2 (L2) network. The method includes detecting at least two network interface cards (NICs) of the MN that are connected to the same L2 network by at least one of an external device and the MN. A handover decision is made to hand-off a data flow of the MN from a first of the at least two NICs to a second of the at least two NICs. L2 information about the MN in one or more related network entities connected to the same L2 network is updated so as to perform seamless handover without changing an address on level 3 (L3) or higher levels.

Flow based layer 2 handover mechanism for mobile node with multi network interfaces

A method and a system is provided for optimizing the throughput of a TCP flow from a TCP source to a TCP destination in a wireless network with the path of the flow encompassing a wireless link between a wireless transmitter and a wireless receiver. The throughput is optimized by using link-layer mechanisms at the wireless transmitter which are adaptive to the instantaneous TCP dynamics of the TCP flow. In particular, a cross-layer approach is disclosed which serves to tunnel information of TCP congestion control dynamics directly from the TCP based transport layer to the data link-layer which selects in response to these information modulation and/or coding schemas to transmit TCP segments via data link-layer blocks with improved TCP throughput.

Method and communication system for optimizing the throughput of a TCP flow in a wireless network

A method and a device for controlling data connections in a data network including a plurality of data network nodes. The quality of a first data connection is evaluated on the basis of the adaptations of at least one coding used for the first data connection, and a second data connection is established according to the evaluation and used as a replacement for the first data connection.

Method and device for controlling data connections in a data network having a plurality of data network nodes

Growing community of inventors

Darmstadt, Germany

Bangnan Xu