一种低空立体组网场景下简化的下行干扰模型  

A simplified downlink interference model for lowaltitude three-dimensional networking scenarios

作　　者：周娇 李新 曹蕾 陈蔚燕 范雯 张欣[2] 秦洁[3] 许乐飞[3] ZHOU Jiao;LI Xin;CAO Lei;CHEN Weiyan;FAN Wen;ZHANG Xin;QIN Jie;XU Lefei(China Mobile Research Institute,Beijing 100053,China;School of Information and Communication Engineering,Beijing University of Posts and Telecommunications,Bei jing 100193,China;China Mobile Communications Group Guangdong Co.,Ltd.,Shenzhen Branch,Shenzhen 518033,China)

机构地区：[1]中国移动通信有限公司研究院,北京100053 [2]北京邮电大学信息与通信工程学院,北京100193 [3]中国移动通信集团广东有限公司深圳分公司,广东深圳518033

出　　处：《电信科学》2025年第3期52-63,共12页Telecommunications Science

摘　　要：为更好地保障低空立体组网的性能,可采用天线主瓣向上的方式覆盖低空。与传统地面组网场景相比,低空组网面临干扰小区数量多、干扰影响范围广、干扰受高度影响大等难题。分析了低空立体组网的分层特征,揭示了其干扰特性,并基于该特性,结合多小区三角投影的关系,对天线上倾场景下的低空组网的下行干扰进行了数学建模。该模型仅采用倾角以及用户与基站的相对位置信息,即可获得低空覆盖的性能,简化了低空场景下的性能和干扰分析过程。To better ensure the performance of low-altitude networking,the antenna main lobe can be used to cover low-altitude.Compared to traditional ground networking scenarios,it faces interference challenges such as a large number of interfering cells,a wider range of interference impact,and high interference susceptibility.The layered characteristics of the low-altitude three-dimensional networking were analyzed,and its interference characteristics were revealed.Based on these characteristics,combined with the relationship of multi-cell triangular projection,a mathematically model was developed for the downlink interference in low-altitude networking with upward-tilted an tennas.This model could obtain the performance of low-altitude coverage using only the angle of tilt and the relative position information between users and base stations,thereby simplifying the process of performance and interference analysis in low-altitude scenarios.

关 键 词：低空立体分层组网 低空干扰模型 主服务小区和干扰小区分布 

分 类 号：TN919[电子电信—通信与信息系统]