Method for retransmitting packet on wireless fidelity link and apparatus

A gateway comprising:

• a memory configured to store instructions;
• and
• a processor coupled to the memory and configured to execute the instructions to cause the gateway to:
• receive a packet retransmission request from a user terminal;
• determine a packet that needs to be retransmitted;
• detect a first downlink quality indicator on a first gateway of a first wireless link and a second downlink quality indicator on a gateway side of a second wireless link, wherein a first operating frequency band of the first wireless link is different from a second operating frequency band of the second wireless link;
• determine a link for retransmitting a packet based on the first downlink quality indicator and the second downlink quality indicator;
• and
• send the packet to a user terminal on the link by retransmitting a frame I in the packet based on a first preset quantity of retransmissions of the frame I and a frame P in the packet based on a second preset quantity of retransmissions of the frame P,
• wherein the first preset quantity of retransmissions of the frame I is N the quantity of retransmissions of the frame P is M, N>M, and N and M are non--zero natural numbers.

A computer program product comprising computer-executable instructions that are stored on a non-transitory computer-readable medium and that, when executed by a processor, cause a gateway to:

• receive a packet retransmission request from a user terminal;
• determine a packet that needs to be retransmitted;
• detect a first downlink quality indicator on a gateway side of a first wireless link and a second downlink quality indicator on a gateway side of a second wireless link, wherein a first operating frequency band of the first wireless link is different from a second operating frequency band of the second wireless link;
• determine a link for retransmitting the packet based on the first downlink quality indicator and the second downlink quality indicator;
• and
• send the packet to the user terminal on the link by retransmitting a frame I in the packet based on a first preset quantity of retransmissions of the frame I and a frame P in the packet based on a second preset quantity of retransmissions of the frame P,
• wherein the first preset quantity of retransmissions of the frame I is N, the quantity of retransmissions of the frame P is M, N>M, and N and M are non-zero natural numbers.