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Media live broadcast method based on 4G wireless private network

A wireless private network, 4G technology, applied to color TV parts, TV system parts, TVs, etc., can solve the problems of bandwidth usage bottlenecks, high cost of use, etc., and achieve the effect of enriching the form of expression

Inactive Publication Date: 2017-06-06
JIANGSU BROADCASTING CORPORATION
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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

Method used

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  • Media live broadcast method based on 4G wireless private network
  • Media live broadcast method based on 4G wireless private network
  • Media live broadcast method based on 4G wireless private network

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Embodiment Construction

[0016] figure 1 It supports multi-card binding, improves transmission stability and bandwidth, and strengthens the system's ability to resist risks; a variety of error correction mechanisms to ensure transmission results; base station and server-side separate design, flexible deployment, and low overall cost; front-end equipment adopts embedded The standard hardware decoder is stable and reliable, with high video and audio indicators, meeting the requirements of the broadcast level; the front-end equipment (front-end) transmitting unit is based on embedded Linux design, low power consumption, stable and reliable work, quick start-up, easy to use; With file transfer function, the material obtained by the front-end equipment can be directly returned without computer operation; it supports resumable upload, which is safe and reliable; the 4G private network can support tally and call functions, which is convenient for audio and video directors to deploy on-site cameramen.

[0017...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/61H04N5/28H04N7/18H04N21/218H04N7/20
CPCH04N21/6131H04N5/28H04N7/181H04N7/20H04N21/21805H04N21/6143
Inventor 顾建国薛兵苏琦张和林叶伟沈洲
Owner JIANGSU BROADCASTING CORPORATION
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