Audio data transmission method applied to switching between single-earbud mode and double-earbud mode of TWS headset and device

An audio data transmission method, wherein the method is used for audio data transmission between an electronic device and a true wireless stereo (TWS) headset, the TWS headset comprises a first earbud and a second earbud, and the method comprises:

• determining, by the electronic device, that the TWS headset is in a first single-earbud mode, wherein the first single-earbud mode is a mode in which the first earbud is independently used as an audio input/output device of the electronic device;
• in response to the determining, configuring, by the electronic device, a first connected isochronous group (CIG) for the first earbud, wherein the first CIG comprises a first connected isochronous stream (CIS) and a second CIS;
• and
• configuring, by the electronic device, the first CIS for the first earbud, activating the first CIS, and transmitting audio data to the first earbud by using the first CIS, wherein the second CIS is in an inactive state in the first single-earbud mode.

An electronic device, comprising one or more processors, a memory, and a wireless transceiver, wherein:

• the memory and the wireless transceiver are coupled to the one or more processors, the memory is configured to store computer program code, the computer program code comprises computer instructions, and when the one or more processors execute the computer instructions, the electronic device is configured for:
• transmitting audio data to a first earbud of a true wireless stereo (TWS) headset by using a first connected isochronous stream (CIS) of a first connected isochronous group (CIG), and transmitting audio data to a second earbud of the TWS headset by using a second CIS of the first CIG;
• determining that the TWS headset is switched from a double-earbud mode to a first single-earbud mode, wherein the double-earbud mode is a mode in which the first earbud and the second earbud are used together as audio input/output devices of the electronic device, and the first single-earbud mode is a mode in which the first earbud is independently used as an audio input/output device of the electronic device;
• and
• in response to the determining, deactivating the second CIS, stopping transmitting audio data to the second earbud by using the second CIS, and continuing transmitting audio data to the first earbud by using the first CIS.