面向工业时敏业务的5G TSN融合网络切片资源调度

doi:10.11959/j.issn.1000-0801.2024073

Abstract

Abstract:

The integrated deployment of 5G and time sensitive network (TSN) is an important foundation for realizing wireless industrial Internet and flexible manufacturing.How to guarantee the high-quality transmission simultaneously of diverse industrial services and mobile services is a key issue to be solved for 5G TSN integration.Therefore, the types of industrial services were divided according to the differences in requirement characteristics, a slice scheduling strategy for industrial Internet was designed to satisfy the requirements of periodic time-critical services and sporadic burst services, and a resource partitioning algorithm based on uniform distribution was proposed.By controlling resource reservation and resource preemption, the proposed method can optimize the utilization of wireless resources and guarantee the delay of industrial traffic and the transmission rate of mobile services.Finally, the effectiveness of the proposed method in improving the service requirements satisfaction and resource utilization was verified by simulation experiments.

Key words: 5G-TSN integration network, resource scheduling, network slicing, time-critical service

CLC Number:

TN929.5

Wanqing GUAN, Nuoyan LIU, Wei LI, Meixia FU, Haijun ZHANG. Slice scheduling for industrial time-critical services in 5G TSN integration network[J]. Telecommunications Science, 2024, 40(3): 53-63.

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References 9

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业务类别	应用	时延/ms	可靠性	速率/（Mbit·s^-1）	有效载荷/byte
零星突发时敏业务	紧急制动	<4	99.999 9%～99.999 999%	—	40～250
	闭环控制	<10	99.999 9%～99.999 999%	—	10
周期性时敏业务	运动控制	2	99.99%～99.999 9%	—	20
	协同控制	1	99.999%～99.999 99%	—	40～250
非时延敏感类业务	软件下载	—	—	＞1	—
	用户互动	—	—	＞5	—

参数	值
最大传输带宽B/MHz	50
子载波间隔∆f/kHz	60
资源块RB总量N^B，∆fRB /个	65
子载波配置间隔μ	2
迷你时隙时间间隔/μs	35.7
子帧个数/个	5
可抢占资源比例α	0.077（5/65）
非时延敏感类业务总量/个	10
时延敏感类业务总量/个	10～50
时延敏感类业务最大时延n_deadline	3

N_bias	10	15	20	25	30	35	40	45	50
N_TSN	2	2	1	1	1	0	0	2	2

ratio	10%	20%	30%	40%	50%	60%	70%	80%	90%
ratio_bias	-1	0	1	2	2	3	3	4	4

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Slice scheduling for industrial time-critical services in 5G TSN integration network

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