Bidirectional broadband access and interaction demand system based on LTE and coaxial cable

Abstract

The invention relates to a bidirectional broadband access and interaction demand system based on LTE and a coaxial cable. The system comprises an LTE terminal, a user set top box and an interaction demand platform, wherein an Ethernet port of the user set top box is connected with an Ethernet port of the LTE terminal, the user set top box is in interconnection with the interaction demand platform through the LTE terminal, the LTE terminal and an LTE base station establish a wireless bidirectional data transmission channel used for carrying out communication with the interaction demand platform, the interaction demand platform is connected with the user set top box through a unidirectional coaxial cable network, a front-end system of the unidirectional coaxial cable network is provided with an edge modulator IPQAM used for modulating UDP data packets of video flows, and signals after modulation and radio frequency signals of a unidirectional broadcast system are mixed and are then transmitted to the user set top box. According to the system, the LTE base station and the terminal system are utilized to construct a wireless transparent data transmission link, and a problem that a unidirectional wired coaxial cable network can not develop Internet broadband and VOD demand services is solved.

Description

technical field [0001] The invention relates to the field of radio and television networks, in particular to a two-way broadband access and interactive on-demand system based on LTE plus coaxial cables. Background technique [0002] After decades of development of radio and television technology, with the improvement of people's material living standards, one-way radio and television can no longer meet the needs of users. Now VOD (video on demand) technology has been applied on a large scale, and there are cable TV network-based and Internet-based VOD applications. Among them, the VOD application experience and effect based on the cable TV network are the best, but the cable TV network must carry out two-way network transformation in order to realize VOD, and transform the traditional one-way broadcast network into a basic network with two-way communication functions. The current two-way network transformation costs are high, and for the transformed area, no matter whether ...

AI Technical Summary

Problems solved by technology

[0004] The one-way coaxial cable network of the current cable TV network can only receive broadcast TV programs in one direction before the two-way network transformation, and cannot provide two-way network services for terminals, which greatly limits user experience, and users cannot get broadband services and video on demand service

Since the one-way coaxial cable network covers thousands of households, a two-way transformation requires a lot of investment, replacement of amplifiers and branch distributors in the entire network, and testing and evaluation of the noise of the reverse return channel; the two-way transformation project takes a long time , a huge amount of work

Images