Data transmission method and device, and computer storage medium

A terminal device, comprising a processor in a Non-Access Stratum (NAS) and a network interface in an access stratum, wherein

• the processor is configured to acquire description information of data to be transmitted;
• the processor is further configured to determine reliable transmission indication information corresponding to the data to be transmitted according to a preset mapping relationship between data description information and reliable transmission indication information and the description information of the data to be transmitted, the reliable transmission indication information being used to indicate whether to perform reliable transmission on the data to be transmitted;
• the processor is further configured to transmit the reliable transmission indication information corresponding to the data to be transmitted to the access stratum of the terminal device responsive to the reliable transmission indication information indicating reliable transmission to be performed on the data to be transmitted;
• and
• the network interface is configured to send a reliable transmission request message to a network device, the reliable transmission request message being configured for transmission of the data to be transmitted between the terminal device and the network device through a set reliable transmission policy.

A non-transitory computer storage medium having stored a data transmission program that when executed by at least one processor, causes the processor to implement the steps of a method of data transmission, the method comprising:

• acquiring, by a Non-Access Stratum (NAS) of a terminal device, description information of data to be transmitted;
• determining, by the NAS, reliable transmission indication information corresponding to the data to be transmitted according to a preset mapping relationship between data description information and reliable transmission indication information and the description information of the data to be transmitted, the reliable transmission indication information being used to indicate whether to perform reliable transmission on the data to be transmitted;
• and
• responsive to the reliable transmission indication information indicating reliable transmission to be performed on the data to be transmitted, after the NAS transmits the reliable transmission indication information corresponding to the data to be transmitted to an access stratum of the terminal device sending, by the access stratum, a reliable transmission request message to a network device, the reliable transmission request message being configured for transmission of the data to be transmitted between the terminal device and the network device through a set reliable transmission policy.