Drahtlose Funkkommunikation mit Mesh-Verteilung von Audio

Details

Veröffentlichungs-Nr.

EP4811687

Anmeldetag

21. März 2025

Veröffentlichung

23. September 2026

Rechtsraum

EP

Abstract

A method for communication of audio between a plurality of devices in a wireless radio network connection using a Mesh principle, e.g. a flooded Mesh principle, for distribution of audio data packets from one of the devices to all of the devices in the wireless radio network. The devices are time synchronized (SNC_TDMA) to a predetermined TDMA frame structure with consecutive frames each with a predetermined number of individual slots dedicated for audio data packet transmission. A NOF value indicative of a predetermined number of consecutive frames (NOF) to be used in the Mesh distribution of audio data packets is stored in all devices. By transmitting (T_ADP) an audio data packet in a slot of a frame, a Time-To-Play (TTP) counter is associated with each audio data block in the audio data packet. When another device receives the audio data packet, received audio data blocks are buffered along with their associated TTP counters. The individual TTP counters for the buffered audio data block are updated once for each frame. Finally, the device plays audio according to one or more buffered audio data blocks in time synchronization with the TDMA frame structure, when the TTP counter associated with the one or more buffered audio data blocks indicates that the NOF value is reached. With the TTP counter and NOF value, it is ensured that distributed audio will be played simultaneously by all devices having received the audio with a known latency.

Anmelder

Firma

RTX A/S

Land

🇩🇰 Dänemark