Data transmission method and related device

A receive end, comprising:

• a processor;
• and
• a non-transitory computer readable medium which contains computer-executable instructions,
• wherein the processor is configured to execute the computer-executable instructions to perform operations, the operations comprising:
• receiving K packets using a first protocol, wherein each packet comprises a sequence number, and the K packets are a subset of L packets sent by a transmit end;
• determining a second sending delay based on a target packet when it is detected that the target packet is lost using the first protocol based on sequence numbers in the K packets, wherein the second sending delay is greater than a first sending delay, and the first sending delay is preset;
• sending an acknowledgement (ACK) message to the transmit end using the first protocol based on the second sending delay, wherein the ACK message is used to notify the transmit end that a receive end has received the L packets;
• sending a retransmission request for the target packet to the transmit end using a second protocol;
• and
• receiving, using the second protocol, the target packet retransmitted by the transmit end.

A receive end, comprising:

• a receiving module configured to receive K packets by using a first protocol, wherein each packet comprises a sequence number, and the K packets are a subset of L packets sent by a transmit end;
• a determining module configured to determine a second sending delay based on a target packet when detecting that the target packet is lost using the first protocol based on sequence numbers in the K packets received by the receiving module, wherein the second sending delay is greater than a first sending delay, and the first sending delay is preset;
• and
• a sending module configured to send an acknowledgement (ACK) message to the transmit end using the first protocol based on the second sending delay determined by the determining module, wherein the ACK message is used to notify the transmit end that the receive end has received the L packets, wherein
• the sending module is further configured to send a retransmission request for the target packet to the transmit end using a second protocol when the determining module detects that the target packet is lost using the first protocol based on the sequence numbers in the K packets;
• and
• the receiving module is further configured to:
• after the sending module sends the retransmission request for the target packet to the transmit end using the second protocol, receive, using the second protocol, the target packet retransmitted by the transmit end.