Data sending method, data receiving method, and communication apparatus

Abstract

A method includes obtaining T first data blocks and coding coefficients corresponding to original data packets in the T first data blocks. The method also includes encoding the original data packets in the T first data blocks using the coding coefficients and respective bit rates of first B first data blocks in the T first data blocks to obtain (T+B) second data blocks. First T second data blocks in the (T+B) second data blocks are the T first data blocks, last B second data blocks in the (T+B) second data blocks are B encoded data blocks, and a quantity of encoded data packets is related to a quantity of original data packets in the first B first data blocks and a bit rate of the first data block. The method further includes sending the (T+B) second data blocks.