Wireless NGB (next generation broadcasting network) system and adaptive regulating method of channels

Abstract

The invention discloses a wireless NGB (next generation broadcasting network) system with an interactive function and an adaptive regulating method of channels. In the method, a broadcasting base station encodes and modulates program data according to channel state information, and then transmits a wireless program signal to a wireless terminal; the wireless terminal receives the wireless program signal and collects channel state information, and feeds the channel state information back to an interactive base station in a wireless signal way; the interactive base station transmits the channel state information to a broadcasting base station through a sub-system of a broadcasting backbone network; and the broadcasting base station regulates the encoding and modulating mode according to the received channel state information, encodes and modulates the program data provided by the sub-system of the broadcasting backbone network, and transmits a wireless program signal to the wireless terminal in a broadcasting or multicasting mode. According to the system and the method, channel information is fed back in an interactive mode, so that the purpose of adaptively regulating channel encoding and modulation can be achieved according to the channel information.

Description

technical field [0001] The invention relates to the technical field of radio and television, in particular to a next-generation wireless radio and television network system with interactive functions and a channel self-adaptive adjustment method. Background technique [0002] As an important part of my country's information infrastructure, the radio and television network is the most popular information tool and the most convenient information carrier to reach thousands of households. After decades of development, my country's radio and television comprehensive coverage rate has exceeded 96.95%, becoming a radio and television network that covers the largest population in the world, combines the central and local governments, and uses multiple means such as cable, wireless, and satellite. At the same time, with the development of digital technology, network technology, two-way and interactive technology, traditional media is transforming into new media. In recent years, new ...

AI Technical Summary

Problems solved by technology

[0011] At present, how to realize the next-generation radio and television wireless network and how to channel adaptive coding and modulation in the radio and television wireless network have not yet reached a unified technical solution

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