Method, system, and terminal device for data transmission based on Wi-Fi 6

A system for data transmission based on Wi-Fi 6, comprising:

• a broadcast module,
• a first determining module,
• a second determining module, and
• a data packet transmitting module,
• wherein the broadcast module is configured to broadcast a plurality of data packets each carrying a device identification of a first device and a sequence number thereof for a router, the first device is any one of terminal devices communicating with the router;
• wherein the first determining module is configured to determine whether a feedback response message of a current data packet transmitted by the first device is received within a predetermined time period, after the current data packet is transmitted;
• wherein the second determining module is configured to determine an authority level of the first device in response that the router does not receive the feedback response message of the current data packet;
• wherein the data packet transmitting module is configured to set at least one data packet retransmission window in response that the authority level of the first device is greater than a first predetermined value, and retransmit the current data packet within the at least one data packet retransmission window;
• or
• in response that the authority level of the first device is no more than the first predetermined value, the data packet transmitting module is further configured to detect whether feedback information from a second device is received, and in response that the feedback information from the second device is received, the data packet transmitting module transmits the current data packet to the first device through the second device according to the feedback information;
• wherein when the data packet transmitting module sets the at least one data packet retransmission window, the data packet transmitting module is configured to:
• compare a length of the current data packet with a length of data capable of being transmitted by the at least one data packet retransmission window;
• and
• in response that the length of the current data packet is greater than the length of the data capable of being transmitted by the at least one data packet retransmission window, providing a plurality of data packet retransmission windows and determining a quantity of the plurality of data packet retransmission windows.