Device for realizing unidirectional multicast function based on G.hn technology

The invention discloses a device for realizing a one-way multicast function based on a G.hn technology. The device comprises a G.hn flow pushing device arranged in a front-end machine room; the plurality of G.hn receivers are used as user sides and are placed in a family; the G.hn receivers are connected with the G.hn flow pushing devices through coaxial cables, and each G.hn receiver can be added into a multicast group which takes the G.hn flow pushing device as a multicast source; the G.hn flow pushing device sends multicast data to the multicast group, so that each G.hn receiver in the multicast group can receive the multicast data; the multicast data is cable television service data. In other words, all G.hn receivers under the coaxial cable can receive signals, and the number of the G.hn receivers is not limited. According to the invention, the limitation of the traditional technology is broken through, the G.hn stream pushing end and the receiving end are redefined, the maximum 4096 QAM modulation is re