DATA TRANSMISSION METHOD, SENDING-END DEVICE AND RECEIVING-END DEVICE

摘要

A data transmission method, a transmitting end device and a receiving end device are provided. The data transmission method includes: acquiring first data; processing a PDAP layer of the first data, where the first data does not carry a first data transmission channel identifier corresponding to a first data transmission channel in the PDAP layer; and transmitting the first data via a DRB corresponding to the first data transmission channel.