Systems Engineering and Electronics ›› 2022, Vol. 44 ›› Issue (8): 2635-2644.doi: 10.12305/j.issn.1001-506X.2022.08.29

• Communications and Networks • Previous Articles     Next Articles

Equivalent modeling method for interference analysis of 5G system to large-scale NGSO satellite system

Linghui LI1,2, Wei LI3, Jin JIN1,*, Linling KUANG1   

  1. 1. Beijing National Research Center for Information Science and Technology, Tsinghua University, Beijing 100084, China
    2. Department of Electronic Engineering, Tsinghua University, Beijing 100084, China
    3. State Radio Monitoring Center, Beijing 100041, China
  • Received:2021-07-14 Online:2022-08-01 Published:2022-08-24
  • Contact: Jin JIN

Abstract:

In the coexistence scenario of the 5G system and the large-scale non-geostationary orbit (NGSO) satellite system at the same frequency, the constellation of the NGSO system is large in scale and dynamically time-varying, and the number of 5G system base stations and users is large. Therefore, it is difficult to determine the actual location of the 5G system and the computation of interference will be increased significantly. This article takes the interference from 5G system to NGSO system as an example to analyze the modeling methods. For satellite constellations modeling, the method of dividing the constellation subspace is used to reduce the computation. For 5G system modeling, the distribution of 5G system hotspots will be in line with the current status of urban development based on the clustering method and the global urban population, and then the computation reduction would be achieved by adopting the method of the radiation energy calculation. Compared with the traditional extrapolation method, the simulation results show that the method in this article has similar accuracy to it and can greatly improve the calculation efficiency.

Key words: large-scale non-geostationary orbit satellite system, 5G system, aggregate interference, coexistence analysis

CLC Number: 

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