Bidirectional network rebuilding method for combining wireless fidelity (WiFi) wireless network with unidirectional cable television network

Abstract

The invention discloses a bidirectional network rebuilding method for combining a wireless fidelity (WiFi) wireless network with a unidirectional cable television network. Downlink broadband digital television signals and other broadband multimedia digital signals are transmitted by a cable digital television broadband network, and uplink signals are transmitted by a WiFi-based wireless transmission network. In the method, returned uplink signals and downlink broadband multimedia television signals are required to be transmitted by different transmission networks. By a large-scale covered structure of a WiFi network, a brand new network access mode and ubiquitous network connection are provided. By the method, a user can realize broadband multimedia interaction any time anywhere, and a unidirectional cable digital television broadband network is easily rebuilt into a bidirectional cable digital television broadband network with interaction function.

Description

Two-way network transformation method combining WiFi wireless network and one-way cable TV network technical field The present invention relates to the field of cable TV transmission and wireless transmission, in particular, it relates to a method of combining the existing one-way cable TV broadband network with wireless network WiFi, transforming the one-way cable TV broadband network into a two-way wired digital TV with two-way function method of broadband network. Background technique The existing cable digital TV broadband network HFC is one-way transmission, because there is no return channel, only one-way digital TV broadcasting can be realized, and two-way interaction cannot be realized. However, the ever-increasing variety of multimedia applications, such as: video on demand, music on demand, sending and receiving e-mail, TV business, online shopping, personalized services, etc., requires digital TV operators to provide users with two-way interactive functions, so ...

AI Technical Summary

Problems solved by technology

The existing cable digital TV broadband network HFC is one-way transmission. Since there is no return channel, only one-way digital TV broadcast can be realized, and two-way interaction cannot be realized.

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