Method for controlling data transmission, device, and storage medium

A first device for controlling data transmission, the first device comprising:

• a processor and a memory storing a computer program that, when executed by the processor, causes the processor to:
• send a request for data transmission;
• receive a main transmission path that is fed back by a second device based on the request, the main transmission path being generated by connecting M sink nodes between the first device and the second device, and M being an integer greater than 1;
• perform the data transmission with the second device according to the main transmission path;
• and
• when a network state of the first device does not meet a preset condition, receiving an auxiliary transmission path fed back by the second device, and perform the data transmission with the second device according to the auxiliary transmission path;
• wherein the auxiliary transmission path is determined according to a backbone path between the first device and the second device and P backup sink nodes between the first device and the second device, P being a positive integer;
• the backbone path is a path between the second device and a previous sink node of a main congested sink node in the main transmission path, the main congested sink node is one of the M sink nodes which has the highest degree of congestion in the main transmission path;
• and
• the P backup sink nodes are P backup sink nodes between the previous sink node of the main congested sink node and the first device.

A non-transitory computer-readable storage medium having stored thereon a computer program that, when executed by a processor of a first device, causes the processor to implement a method for controlling data transmission, the method comprising:

• sending a request for data transmission;
• receiving a main transmission path that is fed back by a second device based on the request, the main transmission path being generated by connecting M sink nodes between the first device and the second device, and M being an integer greater than 1;
• performing the data transmission with the second device according to the main transmission path, and
• when a network state of the first device does not meet a preset condition, receiving an auxiliary transmission path fed back by the second device, and performing the data transmission with the second device according to the auxiliary transmission path;
• wherein the auxiliary transmission path is determined according to a backbone path between the first device and the second device and P backup sink nodes between the first device and the second device, P being a positive integer;
• the backbone path is a path between the second device and a previous sink node of a main congested sink node in the main transmission path, the main congested sink node is one of the M sink nodes which has the highest degree of congestion in the main transmission path;
• and
• the P backup sink nodes are P backup sink nodes between the previous sink node of the main congested sink node and the first device.