Media live broadcast method based on 4G wireless private network

Abstract

The invention provides a media live broadcast method based on a 4G wireless private network. Mobile audio and video live broadcasting and graphical and textual data transmission are performed based on 4G multi-card binding cooperation. A 4G wireless private network transmission system is a set of TD-LTE standard communication system based on the special band and is composed of front-end video and audio acquisition equipment, a 4G wireless private network base station, an NMS-receiving media server and a high definition decoder. The audio and video signal transmission process is that IP encoding is performed on the baseband SDI signals outputted by multi-position cameras through respective acquisition and transmission equipment and then the signals are transmitted to the 4G wireless private network base station. The 4G wireless private network base station transmits the received IP stream signals to the NMS media server through the private network. The NMS media server distributes the received IP stream signals to the high definition decoder so as to complete reduction of the IP stream to the baseband SDI signals. The audio and video front-end acquisition equipment is equipped with an embedded hardware encoding module and multiple 4G wireless private network transmission modules, and the SDI signals are encoded and then the IP stream signals are outputted so that high-code-rate IP signal stable transmission can be realized.

Description

technical field [0001] The invention relates to a streaming media communication method for Internet and mobile communication. Background technique [0002] With the rapid development of 4G and wireless broadband technology, its characteristics of large bandwidth and low delay bring the possibility of real-time high-speed mobile video live broadcast and graphic data transmission. As an extension of the traditional TV station business, DSNG satellite vehicle's single satellite transmission link can no longer meet the interactive connection requirements between the news site and the station in the age of converged media. Therefore, it is imperative to build an all-media live broadcast system suitable for the development of converged media. The system needs to realize the rapid aggregation and processing of media resources of multi-format and multi-front-end equipment on the news site, and participate in the production of on-site programs or release them in multiple channels an...

AI Technical Summary

Problems solved by technology

[0003] 4G and wireless broadband mobile video live broadcast and real-time high-speed transmission of graphic data using mobile communication providers have begun to be applied in media live broadcast, but in the most needed occasions such as large public gatherings, there is still a bottleneck in bandwidth usage, and the equipment used must be compatible with The 4G network of mobile communication providers is expensive to use

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