Page 111 - Kaleidoscope Academic Conference Proceedings 2022

RESEARCH AND STANDARDIZATION REQUIREMENTS FOR 5G NETWORK PEAK
CONTROL TECHNOLOGY IN VIDEO TRANSMISSION

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Zhiji Deng ; Zhewei Fu ; Ming Liu ; Xiangyu Qu ; Dong Ding ; Qi Ye ; Weisheng Kong ; Fei Wang ; Jinyu Zhang ;
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Hui Wang ; Jian Lou
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1 Zhejiang Provincial Key Laboratory of Harmonized Application of Vision & Transmission, China
2 Zhejiang Dahua Technology Co. Ltd., China
3 China Mobile Communications Corporation, China
multidimensional data fusion and local storage based on the
[3]
ABSTRACT MEC , breaking the data island and ensuring data security.
The 5G network peak control technology in video Using a 5G network for video surveillance transmission can
transmission scenarios is used to solve the problem of violent solve the problems of video surveillance that cannot be
fluctuations in network peaks caused by the collision of I- moved and monitored temporarily, and make up for
frames (key frames) during multichannel video transmission. surveillance loopholes. However, in large-scale deployment,
Based on the research of key technologies such as I-frame when multiple video channels under the 5G network are
collision detection and network peak shift scheduling, transmitted concurrently, the network peak value fluctuates
through the Multiaccess Edge Computing (MEC) external violently. If the 5G network is planned according to the peak
interface, the network data and video management system is value of video transmission, in most cases, the average video
opened to effectively smooth the network peak during transmission bandwidth demand is small, and the network
multichannel video transmission, and realize the number and utilization rate is low, resulting in a waste of a large amount
bandwidth of 5G terminal access under 5G base stations. of communication resources; while planning the 5G network
The improved utilization rate is conducive to the large-scale according to the average video transmission bandwidth,
promotion of 5G video surveillance scenarios. there will be intermittent video transmission freezes, which
affects user perception, and the number of 5G cameras
Keywords – 5G network, key frame collision, network connected cannot meet expectations.
peak control, video transmission
The White Paper "5G ToB Experience Standards" clearly
1. INTRODUCTION explains the characteristics of real-time streaming video
transmission: the bandwidth requirement when a single
A 5G network is no longer a simple network for people to video stream I-frame is sent far exceeds the average code rate,
use, but a network for the Internet of Everything that includes the peak bandwidth is multiplied during the collision of
computing, storage, and network [1-2] . Therefore, applications multiple real-time streaming video I-frames, and the more
in all walks of life are the top priority of 5G development. network camera devices, the greater the probability of I-
[4]
The video surveillance service is one of the typical services frame collision . Real-time streaming video transmission
of 5G applications. In the past, wireless communication network peak control technology is commonly used in the
technology was rarely used in video surveillance because industry include: 1. Code flow smoothing sending
Wi-Fi network coverage needs to be constructed and technology, using the idle interval of real-time streaming
deployed, and outdoor scenes are not easy to cover. However, video, scattering I-frame burst to the P frame time slot to
there are public users in the 4G network, which are easy to send, smooth off the peak burst flow. This technology will
influence each other and cause network congestion, and the make the I-frame sending time longer and introduce the
uplink bandwidth is insufficient, which cannot meet the sending delay; 2. Adjust the encoding strategy distributes I-
requirements of video surveillance. Larger bandwidths and frames to multiple P frames to smooth and burst. The scheme
stable transmission are required. 5G features large will affect subsequent frames when some I-frames are lost,
[5]
bandwidths, low latency, and wide coverage, which enables resulting in un-decoding for a long time ; 3. Reduce the
video surveillance terminals to have access anytime, encoding rate and improve the fluency experience when the
[6]
anywhere. The device is connected to the network when it is network is congested . The scheme will cause video clarity
powered on, and deployment and debugging are extremely to decrease when dealing with emergencies. Combined with
simple. Every time a camera is deployed, the engineering the 5G network peak control technology of multi-video
department is no longer required to deploy the network, and stream I-frame bursts, I-frames are delivered to the network
in an orderly manner according to a certain time distribution

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