Wireless network and devices

US11212003B2 · kind B2 · utility

Assignee

• Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V. · DE

Inventors

• Volker Jungnickel · Berlin, DE
• Jonas Hilt · Berlin, DE
• Kai Lennert BOBER · Berlin, DE
• Pablo Wilke-Berenguer · Berlin, DE
• Dominic Schulz · Berlin, DE
• Anagnostis Paraskevopoulos · Berlin, DE
• Malte Hinrichs · Berlin, DE

Key dates

• Filing date: Feb 14, 2020
• Grant date: Dec 28, 2021
• Expiry date: Feb 14, 2040

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04L5/14
• WIPO field: Digital communication
• WIPO sector: Electrical engineering

Abstract

Examples relating to techniques for wireless communications, e.g., visible light communication, VLC, are disclosed.In particular, there is disclosed a communication device for communicating with a plurality of other devices, using a wireless link. The device provides individual reference signals using a number of subcarriers or time slots in accordance to the optical clock reference and the number of transmitting devices in the set or streams to be transmitted in parallel. The device defines the position of subcarriers or of signals at the time slots in accordance to an identification number associated to an individual device within the whole set of transmitting devices or in dependence on an identification number identifying a specific stream or transmitter. The device transmits the reference signal which enables the plurality of receiving devices to identify the signal coming from the individual communication device in the whole set of devices.