Communication system, coupling communication device and method for transmitting time-critical data

US12101255B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Markus Neumann · Nuremberg, DE
• Wolfgang SCHWERING · Röttenbach, DE

Key dates

• Filing date: Jun 22, 2022
• Grant date: Sep 24, 2024
• Expiry date: Jun 22, 2042

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04L2101/622
• WIPO field: Digital communication
• WIPO sector: Electrical engineering

Abstract

A method for transmitting time-critical data, in which datagrams are transmitted from a first communication device in a first sub-network to a second communication device in a second sub-network via a third sub-network, wherein datagrams within the first and the second sub-networks are each forwarded by switching, while diagrams within the third sub-network are transmitted by routing, where the first sub-network includes at least a first coupling communication device connected to a first router and a second coupling communication device connected to a second router, where the first and second coupling communication devices select among each other a master coupling communication device, where a common virtual network layer address is assigned to both coupling communication devices, and where a securing layer tunnel is built up by the third sub-network between the master coupling communication device and a third coupling communication device.