LoRa interleaver and LoRa communication system

The invention discloses a LoRa interleaver and a LoRa communication system, the LoRa interleaver comprises a diagonal matrix interleaving block and a symbol interleaving block, and the symbol interleaving block is an SF * CR matrix which is written in according to rows and read out according to columns; after the diagonal matrix interleaving block is interleaved once, CR LoRa symbols are obtained, the ith CR LoRa symbol extracted by the diagonal matrix interleaving block is stored in the ith row of the SF * CR matrix, and the CR LoRa symbol is extracted according to columns after the SF row of the symbol interleaving block matrix is filled with the CR LoRa symbol. The method can effectively improve the bit error rate performance of a LoRa communication system when coping with LoRa interference signals with the same spreading factor. 本发明公开了一种LoRa交织器及LoRa通信系统，该LoRa交织器包括对角矩阵交织块和符号交织块，符号交织块为按行写入而按列读出的SF×CR的矩阵；对角矩阵交织块经过一次交织后得到CR个LoRa符号，对角矩阵交织块取出的第i个CR个LoRa符号存储入SF×CR的矩阵的第i行，填满符号交织块矩阵的SF行后按列取出。本发明可以在应对具有相同扩频因子的LoRa干