天地一体化信息网络2026，Vol.7Issue(2)：3-10,8.DOI:10.11959/j.issn.2096-8930.2026001
大规模低轨卫星网络中基于物理小区标识规划的接入干扰规避
Physical cell identity planning for access interference avoidance in large-scale LEO satellite networks
杨飞 1张兴 1王文博1
作者信息
- 1. 北京邮电大学信息与通信工程学院,北京 100876
- 折叠
摘要
Abstract
LEO satellite communication networks,featuring wide coverage,low latency,and flexible deployment,have become an im-portant part of integrated space-terrestrial communication system.However,during the downlink synchronization process for random access in large-scale LEO constellations,PCI modulo-3,modulo-4,and modulo-30 collisions among co-frequency beams may cause se-vere access interference and lead to subsequent random access failure.To address this issue,a two-stage heuristic PCI-SSB joint plan-ning algorithm is proposed.Simulation results show that the proposed algorithm significantly reduces access interference over the base-line scheme and improves interference suppression capabilities in large-scale LEO satellite networks.关键词
物理小区标识/SSB/LEO卫星网络/启发式算法Key words
physical cell identity/SSB/LEO satellite network/heuristic algorithm分类
信息技术与安全科学引用本文复制引用
杨飞,张兴,王文博..大规模低轨卫星网络中基于物理小区标识规划的接入干扰规避[J].天地一体化信息网络,2026,7(2):3-10,8.
