Wireless audio data transmission method and related device

A wireless audio data transmission method applied to a slave device communicating wirelessly with a master device in consecutive isochronous intervals based on a communication link, the slave device being an audio input slave device or an audio output slave device, one of consecutive isochronous intervals comprising a plurality of sub-events, one sub-event comprising a plurality of time slots for audio data transmission, comprising:

• transmitting an audio data packet to the master device within at least one first time slot of a first sub-event when the slave device is the audio input slave device, or, receiving an audio data packet transmitted by the master device within at least one second time slot of the first sub-event when the slave device is an audio output slave device;
• receiving a control packet transmitted by the master device, the control packet being configured to indicate at least one third time slot within a second sub-event in which the slave device is permitted to transmit the audio data packet to the master device through corresponding communication link, or, at least one fourth time slot in which the slave device is permitted to receive the audio data packet transmitted by the master device through corresponding communication link;
• transmitting the audio data packet to the master device in the at least one third time slot of the second sub-event based on the control packet, or, receiving the audio data packet transmitted by the master device in the at least one fourth time slot of the second sub-event based on the control packet;
• wherein the first sub-event and the second sub-event are different sub-events within the consecutive isochronous intervals and the second sub-event is later than the first sub-event.

A wireless audio data transmission device used as a master device communicating wirelessly with N slave devices in consecutive isochronous intervals based on N communication links respectively, the N slave devices comprising one or more audio input slave devices and/or one or more audio output slave devices, N being an integer greater than or equal to 2, one of consecutive isochronous intervals comprising a plurality of sub-events, one sub-event comprising a plurality of time slots for audio data transmission, the wireless audio data transmission device comprising:

• a first transmission module configured for receiving the audio data packet transmitted by a first target device within at least one first time slot of a first sub-event, and/or, transmitting the audio data packet to a second target device within at least one second time slot of the first sub-event, wherein the first target device is one audio input slave device of the N slave devices and the second target device is one audio output slave device of the N slave devices;
• a control module configured for transmitting a control packet to the N slave devices in an event of a failure to receive the audio data packet transmitted by the first target device in the first sub-event, and/or, in an event of a failure to transmit the audio data packet to the second target device, the control packet being configured to indicate at least one third time slot within a second sub-event in which the first target device is permitted to transmit the audio data packet to the master device through corresponding communication link, and/or at least one fourth time slot in the second sub-event in which the second target device is permitted to receive the audio data packet transmitted by the master device through corresponding communication link;
• wherein the first sub-event and the second sub-event are different sub-events within the consecutive isochronous intervals and the second sub-event is later than the first sub-event.