5G-A sensing-communication integration for precise interconnection of low-altitude unmanned aerial vehicles

doi:10.12267/j.issn.2096-5931.2025.11.004

Abstract

Abstract:

Leveraging current 5G technology, upgrades can be made to 5G’s transmission-reception mode, spatial multiplexing method, sensing waveform, and resource allocation. By deploying parameters like the communication-sensing task switch in the 5G system, can be upgraded to a 5G-Advanced (5G-A) system. This upgrade addresses 5G coverage gaps in low-altitude areas, enhances the connectivity of low-altitude terminals, mitigates low-altitude waveform interference, and ultimately achieves precise interconnection management of low-altitude unmanned aerial vehicles and improve low-altitude sensing capabilities.

Key words: 5G-A, low-altitude, UAV, maritime area

CLC Number:

TN929.11

JIANG Qiang, FEI Wenchao, QIN Shihui, WU Baodong, XIE Huabiao, LI Ying. 5G-A sensing-communication integration for precise interconnection of low-altitude unmanned aerial vehicles[J]. Information and Communications Technology and Policy, 2025, 51(11): 24-30.

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URL:

http://ictp.caict.ac.cn/EN/10.12267/j.issn.2096-5931.2025.11.004

http://ictp.caict.ac.cn/EN/Y2025/V51/I11/24

通信指标	要求
通信覆盖高度/m	300
上行边缘速率/Mbit/s	5~25
感知指标	要求
感知目标RCS/m²	0.01~2
感知高度/m	300
感知位置精度(水平/垂直)/m	10
感知距离分辨率/m	10
感知速度/km/h	5~100
感知速度分辨率/m/s	5
检测率	95%
虚警率	5%
置信度	95%
刷新率/s	1

通信指标	要求
通信覆盖高度/m	300
上行边缘速率/Mbit/s	5~25
感知指标	要求
感知目标RCS/m²	0.01~2
感知高度/m	300
感知位置精度(水平/垂直)/m	10
感知距离分辨率/m	10
感知速度/km/h	5~100
感知速度分辨率/m/s	5
检测率	95%
虚警率	5%
置信度	95%
刷新率/s	1

项目	取值	备注
NR频率/MHz	2515~2615
NR带宽/M	100
NR发射功率/W	320	64 T/128R
NR帧结构	2.5 ms双周期	DDDSUDDSUU
PRACH格式	Format0
SSB子载波间隔/kHz	30
SSB波束数量/波束	5
终端形态	SA:2T4R
终端发射功率/dBm	SA总功率均不超26

项目	取值	备注
NR频率/MHz	2515~2615
NR带宽/M	100
NR发射功率/W	320	64 T/128R
NR帧结构	2.5 ms双周期	DDDSUDDSUU
PRACH格式	Format0
SSB子载波间隔/kHz	30
SSB波束数量/波束	5
终端形态	SA:2T4R
终端发射功率/dBm	SA总功率均不超26

特性或参数名	说明
环境干扰时域对消开关	打开,消除环境干扰以及自干扰对消
角度平滑开关及配套参数	打开,解决角度抖动问题,提升检测精度
信道平滑开关及配套参数	打开,解决角度抖动问题,提升检测精度
目标判断距离门限	↑:虚检轨迹个数较少,但目标定位精度较差 ↓:虚检轨迹个数增多,但目标定位精度提升
目标匹配距离门限	↑:不易出现虚检,但目标定位精度较差 ↓:容易出现虚检,但目标定位精度较好
坐标拟合RSRP差值门限	基本无需调整 ↑:目标定位精度可能会变差 ↓:目标定位精度可能会变好

5G-A sensing-communication integration for precise interconnection of low-altitude unmanned aerial vehicles

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参数名	说明
目标判断距离门限	↑:虚检轨迹个数较少,但目标定位精度较差 ↓:虚检轨迹个数增多,但目标定位精度提升
最大距离限制	↑:轨迹不易中断,但容易出虚检 ↓:轨迹易中断,但不易虚检
可见度门限	↑:虚检减少,但目标出现时间晚 ↓:虚检增多,但目标出现时间早
出现总次数门限	↑:虚检易被删除,但目标轨迹可能中断 ↓:虚检不易被删除,但目标轨迹中断概率减小
连续不可见次数门限	↑:目标轨迹不易中断,但虚检轨迹也会变长 ↓:目标轨迹容易中断,但虚检轨迹也会变短
目标匹配距离门限	↑:不易出现虚检,但目标定位精度较差 ↓:容易出现虚检,但目标定位精度较好
新增目标最大速度门限	↑:目标不易被删除,但是虚检个数增加 ↓:目标容易被删除,但是虚检个数减少
新增目标合规速度轨迹点比例	↑:目标容易被删除,但是虚检个数减少 ↓:目标不易被删除,但是虚检个数增加
历史波束删除时间因子	↑:目标轨迹可能会延长,但虚检轨迹也会延长 ↓:目标轨迹可能会变短,但虚检轨迹也会变短
目标直线检测角度门限	↑:目标容易通过直线检测,但是虚检个数增多 ↓:目标不易通过直线检测而被删除,但是虚检个数减少

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