5G-Advanced端到端确定性传输分析与系统设计

doi:10.11959/j.issn.1000-0801.2022055

Abstract

Abstract:

Because of the advantages of flexible deployment, low cable cost, strong support for mobility and comprehensive QoS control and high scalability, cellular networks had been widely used in factory scenarios.At the same time, the deterministic service in the factory also puts forward certain requirements for cellular network control.Therefore, in discussions related to 5G-Advanced, the industry also proposes to research a 5G cellular network that supports ultra-low latency.To meet the delay requirement of 2 ms, two key technologies, deterministic N3 interface and cross-layer scheduling optimization were proposed to reduce the transmission or waiting delay on the transport network and air interface.These two technologies were the enhancement based on the current communication mechanism and network protocol between cellular network and deterministic network.The high delay requirement of deterministic services can be met well without changing the existing network protocol too much.

Key words: deterministic N3 interface, cross-layer scheduling optimization, deterministic low latency, 5G

CLC Number:

TP393

Haiyang SUN, Yi SHI, Yan LI, Qiang FAN, Xin MA. 5G-Advanced E2E deterministic transmission analysis and system design[J]. Telecommunications Science, 2022, 38(3): 49-56.

Figures/Tables 8

References 25

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对比项	使用场景	应用层端到端时延/ms	可靠性
1	控制器到控制器	2～10	99.999%～99.999 99%
2	具有安全功能的移动面板	2～4	99.999 9%～99.999 999%

5G-Advanced E2E deterministic transmission analysis and system design

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