METHOD FOR SUBMITTING A SERVICE, METHOD FOR REQUESTING A SERVICE, BIDIRECTIONAL DEVICE OF THE HEADEND AND TERMINAL DEVICE

摘要

Method, device, and system for requesting and sending a service. This invention refers to a method, device and system for requesting and sending a service, and belongs to the communications field. The method includes: receiving, by a two -way frontal device, a service request sent by a terminal device, and obtaining a corresponding service; judging whether the service can be released by a frontal one -way device; if so, referring the service to the device Have the frontal unidirectional device release the service to the terminal device; otherwise release,By the fleet -based one -way device, the service for the terminal device. In the present invention, the processing of a service server in the previous technique is removed. A two -way frontal device obtains a service from a service server, and judges whether service data are released through a two -way front -end one -way device or exchanged via a two -way network (such as an IP network),So that a large stream of IP diffusion and multiple tansmission data that are originally required to be released via two -way network can be released using a large one -way broadband network, thereby relieving a broadband pressure on the network Bi -directional.