Abstract: The present disclosure provides a proxy communication method, a proxy communication device and a network device. The proxy communication method includes transmitting a management request to an NRF entity, and the management request includes at least one of a registration request, a profile update request or a de-registration request.

Abstract: Disclosed are an information transmission method and device, used for avoiding paging of a service network of a universal subscriber identity module (USIM) when a multiple-USIM terminal leave the service network, thereby saving network resources. The method provided in the present application comprises: when the multiple-USIM terminal needs to leave the service network of a USIM, sending to a network side an instruction for entering a Mobile Initiated Connection Only (MICO) mode or a Power Saving Mode (PSM); and upon the receipt of a confirmation message from the network side in response to the instruction, leaving the service network of the USIM.