IMT系统引入特定百分比的干扰保护准则对兼容共存距离的影响

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关键词：保护准则；特定百分比；吞吐量损失；IMT系统；兼容分析

doi：10.3969/J.ISSN.1672-7274.2025.11.007

中图分类号：TN92；TN98 文献标志码：A 文章编码：1672-7274（2025）11-0027-04

Impact of Introducing a Specific Percentage InterferenceProtection Criterion forIMT Systems on Compatible CoexistenceDistance

PANLin，QUTao²，LIUYanjie1，DINGXianhua1，DONGQing1 （1.Shaanxi Monitoring Station of State Radio Monitoring Center， Xi'an 7102oo， China; 2.Division of Radio Regulation of Industry and Information Technology Department of Shaanxi Province， Xi'an 71oooo， China）

Abstract： This paper establishes a quantitative relationship between the signal-to-interference-plus-noise ratio （SINR），throughput loss，andaspecific probability.It thenderives the criticalsignal-to-noiseratio （SNR）forboththe downlink （user equipment，UE） and uplink （base station，BS） under a 5% throughput loss constraint. Assuming that SINR is uniformlydistributed within a givenrange，the interval proportion method is employed tocalculate the allowable probabilityunder thecondition of I/N⩽-6 dB.Simulationresultsshow that the probability of meeting performance requirements is 93.41% for the downlink and 97.34% for the uplink.Furthermore， coexistence simulations between fixed service （FS）and IMT systems demonstrate that introducing a specific-probability protection criterion can shorten the protection distance，thereby improving spectrum utilization while maintaining communication performance.

Keywords： protectioncriterion;specific percentage; throughput loss; IMT system; compatibility analysis

研究背景

随着移动通信技术的迭代升级和移动数据业务的快速增长，频谱资源日趋紧张。（剩余4793字）