5G上行带宽探测与应用研究

doi:10.11959/j.issn.1000-0801.2021262

Abstract

Abstract:

A scheme of 5G upstream bandwidth detection technology and application was proposed, which could effectively solve the problem of 5G network fluctuation in video monitoring data transmission process.It will help the deployment of 5G video monitoring application.By obtaining the radio resource information of 5G NR, the terminal can count the transmission resource and estimate the change trend of uplink bandwidth.Combined with the intelligent coding technology and bit-stream adaptive technology of streaming media application, the scheme ensures no stuck and continuous picture at the cost of losing a little video definition, and ensures the overall experience of customers.The scheme can be widely used in the scene of heavy 5G public service, large network fluctuation and wide network coverage, such as campus video surveillance.

Key words: 5G network, upstream bandwidth detection, campus video surveillance

CLC Number:

TN919.3

Guobin XU, Zhewei FU, Ming LIU, Zhiji DENG, Cungang WANG, Guanghai ZHONG, Hui LI, Wei MENG, Yunjie WU. Research on 5G upstream bandwidth detection technology and application[J]. Telecommunications Science, 2021, 37(12): 51-59.

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对比项（5G网络波动情况）	带宽探测+智能编码	带宽探测+码流自适应	对照组
网络感知速度	6～11 s内完成感知	6～11 s内完成感知	12～25 s内完成感知
视频清晰度	清晰度变化肉眼无感	清晰度降低	画面停止
视频流畅度	复杂场景可能出现播放卡顿	流畅、画面连续	卡顿
视频传输时延	平均：1 118 ms，	平均：200 ms，	平均：1 572 ms，
	最大：14 570 ms	最大：3 422 ms	最大：23 959 ms
视频传输完整性	复杂场景可能丢帧	不丢帧	丢帧严重

Research on 5G upstream bandwidth detection technology and application

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