6G星地频谱共享干扰抑制理论框架研究

打开文本图片集

中图分类号：TN92；TN98 文献标志码：A 文章编码：1672-7274（2025）11-0001-05

Research on a Theoretical Framework for Interference Suppression in 6G Satellite-Terrestrial Spectrum Sharing

LIYulin，PENGFangyong²，YANGYan¹，QIFei³，FENGYan4 （1.School of Electronic and Information Engineering， Beijing Jiaotong University，Beijing 100044， China;2.Guizhou Power Grid Co Ltd，Guizhou 5580oo，China; 3.China Telecom Corporation Limited，Beijing 10oo33，China;4.StateRadioRegulationofChina，Beijing 10oo37，China）

Abstract： This study proposes a dynamic analysis framework for spectrum coexistence between IMT systems and satelite communications inthe24.25GHz～27.5GHzband，enhancing interferencequantificationand compatibility analysis.The framework quantifies interference from IMTbase stations （BS）to satelite downlinks，focusing on the interference control mechanisms of BS electronic downtilt angles and dynamic Network Load Factor （NFL）.Monte Carlo simulations with hybrid 3GPP/ITU channel modelling demonstrate that joint optimization of dynamic NFL， downtilt angles，and isolation distance （ISOD）satisfies theITU-RSA.155 coexistence criterion.This work establishes a theoretical foundation and parametric benchmarks for 6G satelite-terrestrial spectrum sharing.

Keywords： integrated satellte-terrestrial communication; interference evaluation; spectrum coexistence; IMT

研究背景

国际移动通信（InternationalMobileTelecommunications，IMT）持续推进地面与卫星融合通信研究，已构建5G与卫星通信融合的空天地一体化网络架构，正向6G网络演进，支持跨代兼容与星地融合通信[1[2]。（剩余6037字）