Method for guaranteeing data transmission and communications device

A terminal, comprising a processor, a memory, and a program that is stored in the memory and capable of running on the processor, wherein when the program is executed by the processor, the processor is configured to implement:

• obtaining information of a data IPsec tunnel and/or information of a tunnel between the terminal and a second network, wherein the data IPsec tunnel is an IPsec tunnel used for transmitting user plane data between the terminal and the second network, or data of the tunnel between the terminal and the second network;
• and
• performing a second related operation for a tunnel of a first network based on the information of the data IPsec tunnel and/or the information of the tunnel between the terminal and the second network;
• wherein the performing a second related operation for a tunnel of a first network comprises at least one of the following:
• requesting the first network to provide a standalone second tunnel for each data IPsec tunnel;
• setting QoS parameter information in QoS information of a second tunnel to QoS parameter information corresponding to a tunnel, associated with the data IPsec tunnel, between the terminal and the second network;
• wherein the second tunnel is used for transmitting data of the data IPsec tunnel, or used for transmitting data of the tunnel between the terminal and the second network, or used for transmitting user plane data between the terminal and the second network.

A computer-readable storage medium, comprising a processor, a memory, and a program that is stored in the memory and capable of running on the processor, wherein when the program is executed by the processor, the processor is configured to implement:

• obtaining information of a data IPsec tunnel and/or information of a tunnel between the terminal and a second network, wherein the data IPsec tunnel is an IPsec tunnel used for transmitting user plane data between the terminal and the second network, or data of the tunnel between the terminal and the second network;
• and
• performing a second related operation for a tunnel of a first network based on the information of the data IPsec tunnel and/or the information of the tunnel between the terminal and the second network;
• wherein the performing a second related operation for a tunnel of a first network comprises at least one of the following:
• requesting the first network to provide a standalone second tunnel for each data IPsec tunnel;
• setting QoS parameter information in QoS information of a second tunnel to QoS parameter information corresponding to a tunnel, associated with the data IPsec tunnel, between the terminal and the second network;
• wherein the second tunnel is used for transmitting data of the data IPsec tunnel, or used for transmitting data of the tunnel between the terminal and the second network, or used for transmitting user plane data between the terminal and the second network.