5G近端上行时域干扰分析及解决方案研究  

Analysis and Solution of 5G Uplink Time Domain Interference

作　　者：梁景舒[1] 吴钟德 邱斌[1] 李土光 谢绿禹[1] Liang Jingshu;Wu Zhongde;Qiu Bin;Li Tuguang;Xie Luyu(China Telecom Shenzhen Branch,Shenzhen 518000,China)

机构地区：[1]中国电信股份有限公司深圳分公司,广东深圳518000

出　　处：《邮电设计技术》2023年第3期58-62,共5页Designing Techniques of Posts and Telecommunications

摘　　要：5G有TDD和FDD 2种模式,在TDD系统中,普遍存在远端基站下行信号对近端基站上行信号的干扰的情况。通过近端上行时域干扰的判断方法,分析得出现网受干扰的小区占比及其对5G网络性能的影响。根据近端上行时域干扰产生的主要原因,提出调整S时隙(Self-contained slot)符号比的解决方案。方案实施后有效提升站点的上行抗干扰能力,同时上行速率、UE上下文掉线率及SA接入成功率等网络性能得到明显提升。5G has two mode:TDD and FDD.In TDD system,the interference between the downlink signal of the remote base station and the uplink signal of the near base station is common.Through the judgment method of near end uplink time-domain interference,the proportion of cells with the interference and its impact on 5G network performance are analyzed.According to the main causes of near end uplink time domain interference,a solution to adjust the symbol ratio of self-contained slot is proposed.After the implementation of the scheme,the uplink anti-interference ability of the gNodeB is effectively improved,and the network performance such as uplink rate,UE context abnormal release rate and SA standalone access success rate are significantly improved.

关 键 词：5G 时隙符号比 上行时域干扰 网络性能 

分 类 号：TN929.5[电子电信—通信与信息系统]