Abstract
At present, the news broadcast system using mobile network on the market provides the basic functions required by TV stations, but there are still many problems and shortcomings. In view of the main problems existing in the current system and combined with the actual needs of current users, this paper has preliminarily developed a news broadcast system based on 5G Live. The card frame adaptive strategy significantly improves the user experience by using gradual video frame buffering technology. Hardware codec technology significantly reduces the consumption of system resources; H.264 high-compression algorithm can reduce network bandwidth by 50% compared with MPEG-2 and MPEG-4 without a significant change in image quality. At the same time, the use of mobile video acquisition terminals in the system not only solves the problem that satellite broadcast vehicles cannot reach the site due to the lack of roads but also greatly reduces the cost of early deployment and late maintenance of the news broadcast system. This paper studies the card frame adaptive strategy, the system resource consumption reduction solution, and the deployment scheme of the mobile video and audio transmission terminal, which is of great significance to improve the design and research of the news broadcast system under the wireless network application and also has certain reference value for the design of other broadcasting and television solutions.
Highlights
With the continuous development of technology, highdefinition TV programs have become an indispensable part of people’s lives
There are still many problems with the existing technologies in 5G transmission, 4 K ultra-highdefinition codec, integrated production (IP), and convenient use of adapted news production and broadcast [2]. erefore, it is very necessary to optimize the TV news broadcast system based on wireless communication network
With the further development of wireless communication network technology, after the commercialization of 4G, 5G [12], or higher bandwidth and faster wireless communication technology, we should explore the transmission mode that can better reflect the timeliness of news and make the “normalization of live broadcast” become a reality within reach
Summary
With the continuous development of technology, highdefinition TV programs have become an indispensable part of people’s lives. Microwave transmission is vulnerable to weather and electromagnetic interference, so the traditional method still has some shortcomings in transmitting HD live programs. There are still many problems with the existing technologies in 5G transmission, 4 K ultra-highdefinition codec, integrated production (IP), and convenient use of adapted news production and broadcast [2]. In view of the limitations of traditional broadcasting and television transmission of UHD live TV programs, this paper proposes a design scheme of UHD live TV programs transmission using 5G network. Rough the application of the above technologies, the project in this paper has realized the live video collection from the scene to the live video presentation in the news broadcast room, which has reached the user’s expectation and basically realized the expected demand.
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