US 12,108,285 B2
Dynamic wireless network for duplex audio
Ilka Müller, Nørresundby (DK); Christopher Meisner, Nørresundby (DK); and Claus Krohn Vesterholt, Nørresundby (DK)
Assigned to RTX A/S, Nørresundby (DK)
Appl. No. 17/613,319
Filed by RTX A/S, Nørresundby (DK)
PCT Filed May 5, 2020, PCT No. PCT/DK2020/050131
§ 371(c)(1), (2) Date Nov. 22, 2021,
PCT Pub. No. WO2020/233758, PCT Pub. Date Nov. 26, 2020.
Claims priority of application No. PA 2019 70326 (DK), filed on May 22, 2019.
Prior Publication US 2022/0232421 A1, Jul. 21, 2022
Int. Cl. H04W 28/16 (2009.01); H04B 7/26 (2006.01); H04W 12/03 (2021.01); H04W 56/00 (2009.01); H04W 72/0446 (2023.01); H04W 72/0453 (2023.01)
CPC H04W 28/16 (2013.01) [H04B 7/2643 (2013.01); H04W 12/03 (2021.01); H04W 56/0005 (2013.01); H04W 56/0015 (2013.01); H04W 72/0446 (2013.01); H04W 72/0453 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A method for wireless RF communication of a digital audio signal in audio data packets, wherein the wireless RF communication comprises:
providing a plurality of wireless RF devices each being configured to operate as a synchronization master or a synchronization slave in accordance with a negotiation protocol, and each being configured to transmit and to receive audio data packets represented in frames each containing a plurality of time slots in a wireless RF signal at multiple supported RF frequencies or channels, wherein the wireless RF communication is performed according to a Digital Enhanced Cordless Telecommunication protocol;
scanning, by the plurality of wireless RF devices, all of the multiple supported RF frequencies or channels;
detecting, as a result of said scanning by the plurality of wireless RF devices, other wireless RF devices present within wireless range;
receiving audio data packets by a wireless RF device operating as a synchronization slave directly from another wireless RF device operating as a synchronization slave;
negotiating, according to the negotiation protocol, between the plurality of wireless RF devices present within wireless range to determine which one of the plurality of wireless RF devices to operate as a synchronization master, wherein the remaining wireless RF devices present within wireless range then determine to operate as synchronization slaves;
negotiating, according to the negotiation protocol, between the plurality of wireless RF devices present within wireless range, in case the wireless RF device operating as a synchronization master comes out of wireless range, so as to determine which one of the remaining wireless RF devices within wireless range to operate as a synchronization master;
negotiating, according to the negotiation protocol, between the plurality of wireless RF devices present within wireless range according to the negotiation protocol, in case two of the wireless RF devices operate as synchronization masters, so as to determine which one of said two wireless RF devices to operate as a synchronization master; and
determining, by all of the wireless RF devices of the plurality of wireless RF devices, an interference level or a packet error rate on a plurality of supported RF frequencies and time slots, and to select on which RF frequency and in which time slot to transmit audio data packets accordingly.