TD-LTE与LTE-FDD基站共存干扰链路仿真分析
Link-level Simulation and Analysis of Co-existence Interference
between TD-LTE and LTE-FDD Base Stations
摘要 研究了两类LTE系统在同一地理区域邻频部署时的共存干扰情况,使用System Vue搭建链路级仿真平台对1.8 GHz、1.9 GHz频段的LTE基站进行了干扰分析,给出了不同调制方式、不同保护带宽下引起的系统性能损失的仿真结果。结果表明,现有3GPP规定的射频指标不能确保两系统共存,并给出了降低干扰的建议。
关键词 LTE;共存干扰;链路级仿真;吞吐量
Abstract The co-existence interference is studied between the two LTE systems which
deploy in an adjacent band in the same geographical region. Using System Vue, the link-
level simulation platform is built. The interference is simulated in band 1.8 GHz and 1.9
GHz, and the simulation results of the system performance loss affected by different
modulation method and different protection bandwidth are shown. According to the result
it can't make certain that the two systems coexist by the 3GPP RF specifications. Then it
puts forward some suggestions to reduce the co-existence interference.
Keywords LTE; co-existence interference; link-level simulation; throughout
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