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

Abstract

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.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]The present application is a continuation of U.S. patent application Ser. No. 10 / 559,071, issuing as U.S. Pat. No. 7,580,421, which was the national stage of PCT / DE2004 / 001037 filed on May 17, 2004, which claimed priority to German Patent Application No. DE 10324470.0 filed on May 30, 2003, each of which is expressly incorporated herein in its entirety by reference thereto.FIELD OF THE INVENTION[0002]The present invention relates to a method for controlling data connections in a data network having a plurality of data network nodes.BACKGROUND INFORMATION[0003]In data networks having a plurality of data network nodes, a data connection takes place from a source to a destination via a route, link, or path, in the data network which includes a certain number of data network nodes. In an end-to-end connection in such a data network, therefore, data packets run from the source to the destination via a plurality of data network nodes. These dat...

AI Technical Summary

Benefits of technology

"The present invention provides a method and device for controlling data connections in a data network with multiple nodes. The invention involves assessing the quality of a data connection based on the coding used for transmission. If the quality of a connection is degrading, the invention automatically switches to a new connection, ensuring a continuous data flow without interruptions. The invention also detects and prevents breakdowns or interruptions in the data connection, reducing the need for control signals and minimizing data loss. The coding used for data transmission is dynamic, adapting to the quality of the data connection. Overall, the invention improves the reliability and stability of data connections in a data network."

Problems solved by technology

In addition, the network capacity required for the “flooding” is not available to other network connections.

Moreover, upon breaking a data connection, no data transport is possible any longer between source and destination.

Data packets which were already sent from the source to the destination, but which could not pass the breaking point in time, are lost.

Thus, such data packets must be sent again by the source to the destination, resulting in an increase in packet delay as well as a waste of capacity in packet-oriented data networks.

In transport protocols, such as TCP (transport control protocol) used on the Internet, these great delays lower the throughput of a data connection, and therewith of the entire data network.

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