FIELD: wireless communication.
SUBSTANCE: invention relates to the field of wireless communication using direct connection transmission technology. Embodiments of the invention provide a method and a device for data transmission and a computer storage medium. The method includes: receiving by the layer without access of the terminal device descriptive information of the data to be transmitted; defining by a layer without access, in accordance with a mapping relationship between preset descriptive data information and information indicating reliable transmission, and descriptive information of data to be transmitted, information indicating reliable transmission corresponding to the data to be transmitted, the information indicating reliable transmission used to indicate whether it is worth performing a reliable transmission of data to be transmitted; in response to the feature indicated by the reliable transmission indication information to perform reliable transmission of the data to be transmitted, after the non-access layer transmits the reliable transmission indication information corresponding to the data to be transmitted to the access layer of the terminal device, the access layer sends a reliable transfer request message to the network device, wherein the reliable transmission request message is used to transmit data to be transmitted between the terminal device and the network device through the established reliable transmission policy.
EFFECT: invention makes it possible to determine whether it’s possible to perform reliable transmission or not based on the V2X transmission mode.
15 cl, 10 dwg
