Synchronization method and device for multi-channel data transmission, and transceiver device using the same

A synchronization device for multi-channel data transmission, comprising:

• a memory, configured to store program instructions;
• and
• a processor, configured to execute the program instructions to perform a synchronization method for multi-channel data transmission, wherein the synchronization method for multi-channel data transmission comprises:
• sequentially transmitting test data packets to N receiving devices, and recording a first time required for completing the transmitting of all the test data packets, wherein N is a positive integer greater than 1;
• obtaining a transmission cycle and N delayed playback timestamps based on a data packet preparation time, the first time, and a predetermined error tolerance time, wherein the N delayed playback timestamps are in one-to-one correspondence with the N receiving devices;
• respectively transmitting audio data packets and corresponding delayed playback timestamps to the N receiving devices according to the transmission cycle, and thereafter receiving acknowledgment packets fed back by the receiving devices;
• obtaining an existing data playback duration based on the acknowledgment packets, and obtaining a time difference based on the delayed playback timestamps and the existing data playback duration;
• and
• adjusting the predetermined error tolerance time to a target error tolerance time according to a comparison result between the time difference and a predetermined time difference threshold.

A transceiver device, comprising:

• a transmitting device;
• and
• a receiving device;
• wherein one of the transmitting device and receiving device comprising:
• a memory, configured to store program instructions;
• and
• a processor, configured to execute the program instructions to perform a synchronization method for multi-channel data transmission, wherein the synchronization method for multi-channel data transmission comprises:
• sequentially transmitting test data packets to N receiving devices, and recording a first time required for completing the transmitting of all the test data packets, wherein N is a positive integer greater than 1;
• obtaining a transmission cycle and N delayed playback timestamps based on a data packet preparation time, the first time, and a predetermined error tolerance time, wherein the N delayed playback timestamps are in one-to-one correspondence with the N receiving devices;
• respectively transmitting audio data packets and corresponding delayed playback timestamps to the N receiving devices according to the transmission cycle, and thereafter receiving acknowledgment packets fed back by the receiving devices;
• obtaining an existing data playback duration based on the acknowledgment packets, and obtaining a time difference based on the delayed playback timestamps and the existing data playback duration;
• and
• adjusting the predetermined error tolerance time to a target error tolerance time according to a comparison result between the time difference and a predetermined time difference threshold.