UNEQUAL ERROR PROTECTION-BASED DATA TRANSMISSION METHOD AND APPARATUS

摘要

Embodiments of the present invention relate to a data transmission method and apparatus based on unequal error protection and a device. The method includes: segmenting, according to a quantity of symbol bits in a constellation diagram, a code block corresponding to data, to obtain segmented code blocks; performing rate matching on the segmented code blocks obtained by channel encoding, to obtain output code blocks; cascading the output code blocks according to the quantity of symbol bits in the constellation diagram, to obtain cascaded code blocks; and sending the cascaded code blocks to a terminal device. According to the data transmission method and apparatus based on unequal error protection and the device in the embodiments of the present invention, unequal error protection for data is implemented in an LTE system.