Hybrid multiplexing/demultiplexing methods and apparatuses in passive optical network

The invention discloses a hybrid multiplexing/demultiplexing methods and apparatuses in a passive optical network. The hybrid multiplexing method comprises: N first intermediate-frequency sub bands are divided into M clusters avecagely, wherein each cluster includes K first intermediate-frequency sub bands, the N meets a formula: N=M*K, and each of the K first intermediate-frequency sub bands carries one path of baseband digital electrical signal; and a software-defined first intermediate-frequency multiplexer selects baseband digital electrical signals of the K first intermediate-frequency sub bands from the N first intermediate-frequency sub bands to carry out frequency division multiplexing of software definition and a cluster is formed, and an analog hardware cluster multiplexer carries out frequency division multiplexing on analog electrical signals of the M clusters at a second intermediate-frequency sub band. According to the hybrid analog fiber radio scheme, balancing and multi-level frequency division multiplexing between the software-defined intermediate-frequency multiplexer and the hardware cluster multiplexer are realized; and the cost performance is excellent and the configuration flexibility is high.