Method for real-time communication between a number of network subscribers in a communication system using ethernet physics, and a corresponding communication system using ethernet physics

US7272152B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Markus Gross · Uster, CH
• Ulrich Hahn · Dortmund, DE
• Peter Jaenicke · Erlangen, DE
• Oswald Kaesdorf · Großenseebach, DE
• Martin Teckentrup · Zirndorf, DE

Key dates

• Filing date: Jul 30, 2001
• Grant date: Sep 18, 2007
• Expiry date: Apr 28, 2024

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04L12/64
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

For real-time communication between a number of network subscribers in a communication system using Ethernet physics, the slave units are synchronized to the master unit in that each slave unit is clocked via a respective timer with a predetermined overall cycle time, which timer is set cyclically by the reception of respective slave-specific synchronization information which is determined by the master unit. In this case, each timer in a slave unit automatically starts a new cycle once the predetermined overall cycle time has elapsed, even in the absence of the respective synchronization information. Access control for the transmission mode and reception mode between the network subscribers is provided using a timeslot access method.