Modeling and Analysis of Fine-Grained Interference from International Mobile Communication System Terrestrial Base Stations to Low Earth Orbit Satellites

Yan Shi; Zhuochen Xie; Huijie Liu

doi:10.3788/LOP202259.0307002

Laser & Optoelectronics Progress, Volume. 59, Issue 3, 0307002(2022)

Modeling and Analysis of Fine-Grained Interference from International Mobile Communication System Terrestrial Base Stations to Low Earth Orbit Satellites

Yan Shi^1,2,3, Zhuochen Xie^1、*, and Huijie Liu¹

Author Affiliations

¹Innovation Academy of Microsatellites of CAS, Shanghai 200120, China

²University of Chinese Academy of Sciences, Beijing 100049, China

³School of Information Science and Technology, ShanghaiTech University, Shanghai 200120, China

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Figures & Tables(8)

Fig. 1. Variation curve of average value of interference with scanning angle in each scenario

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Fig. 2. Comparison of interference with and without clutter loss in macro urban scenario

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Fig. 3. Comparison of interference with and without clutter loss in micro scenario

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Table 1. Deployment scenarios of terrestrial IMT BS^[13]
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Table 1. Deployment scenarios of terrestrial IMT BS^[13]
Scenario Seamless wide area coverage Small area coverage
Rural Macro rural /
Suburban Macro suburban Micro suburban
Urban Macro urban Micro suburban

Table 2. Deployment-related parameters for bands at 2 GHz^[22]

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Table 2. Deployment-related parameters for bands at 2 GHz^[22]

	Macro rural	Macro suburban	Macro urban	Macro suburban	Micro urban
Cell radius /km	7.5	1.5	0.75	1.5	0.5
Antenna height /m	30	30	25	6
Downtilt /（°）	3	6	10	n.a.
Antenna pattern	ITU-R F.1336^［23］（recommends 3.1）			ITU-R F.1336 （recommends 2）
Below rooftop BS antenna deployment	0%		30%	100%
Feeder loss /dB	3			n.a
Maximum BS output power （10 MHz） /dBm	46			35
Maximum BS antenna gain /dBi	18	16	16	5
Average BS activity	50%

Table 3. Average value and standard deviation of grid interference in each scenario
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Table 3. Average value and standard deviation of grid interference in each scenario
Macro rural Macro suburban Macro urban Micro suburban Micro urban
Average value /dBm -107.22 -92.27 -86.27 -92.41 -82.91
Standard deviation /dB 1.91 0.33 0.16 0.36 0.11

Table 4. Simulation parameters for vertical and horizontal path cases

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Table 4. Simulation parameters for vertical and horizontal path cases

Item	Vertical path	Horizontal path
Total path length /km	800	3291
Atmosphere path length /km	20	505
Wavelength /nm	850
Output power /dBm	24
Beam divergence /mrad	0.2
Aperture /m²	0.005
Atmosphere attenuation	Very clear air and visibility is 50 km， attenuation is 0.19 dB/km
${C_{n}}^{2}$ /m^-2/3	Weak turbulence： 10^-16

Table 5. Simulation result for vertical and horizontal path cases
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Table 5. Simulation result for vertical and horizontal path cases
Item Vertical path Horizontal path
Output power /dBm 24 24
A_geo /dB 66.04 78.33
A_atm /dB 3.8 95.95
A_{scintillation} /dB 0.0152 0.294
A_system /dB 1 1
I /dBm -46.8552 -151.574

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Yan Shi, Zhuochen Xie, Huijie Liu. Modeling and Analysis of Fine-Grained Interference from International Mobile Communication System Terrestrial Base Stations to Low Earth Orbit Satellites[J]. Laser & Optoelectronics Progress, 2022, 59(3): 0307002

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