Network switching method, network equipment, terminal equipment and chip

The present application is applicable to the technical field of communications, and provides a network switching method, a network device, a terminal device and a chip. The method comprises the steps: acquiring channel feature information of a first network, wherein the channel feature information comprises gain variance information, gain amplitude information, time domain information, frequency domain information and/or angle domain information; inputting the channel feature information into a trained SVM model for processing, performing outputting to obtain switching indication information, and sending the switching indication information to the terminal device, wherein the switching indication information is first information used for indicating that access to the second network is allowed or second information used for indicating that access to the second network is not allowed. According to the network switching method, the network device judges whether to allow a terminal device to access a second netwo