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A Coexistence Analysis Method to Apply ACLR and ACS between NB-IoT and LTE for Stand-Alone Case

机译:一种共存分析方法,用于在NB-IOT和LTE之间应用ACLR和ACS的独立情况

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In the coexistence scenario of NB-IoT and LTE system, several factors affect the evaluating indicators of system performance. Considering the narrow bandwidth character of NB-IoT system, the simulation result would be over-optimistic if the evaluation method about ACLR and ACS in coexistence study of LTE system is still used. In this paper, a new evaluation method about ACLR and ACS is proposed aimed at NB-IoT system, which takes the huge difference of system bandwidth between NB-IoT and LTE system into account. When LTE is the victim system, if the throughput loss does not exceed 5%, LTE and NB-IoT system could coexist. When NB-IoT is the victim system, if the SINR loss is minor compared with the result that without coexistence, NB-IoT and LTE system could coexist. The simulation results show that the NB-IoT system could coexist with LTE system when NB-IoT BS ACS is about 45dB and UE ACLR is in the range of 40~45dB.
机译:在NB-IOT和LTE系统的共存情景中,有几个因素会影响系统性能的评估指标。考虑到NB-IOT系统的窄带宽特性,如果仍然使用LTE系统的共存研究的评估方法和ACS的评估方法,模拟结果将过于乐观。本文提出了一种关于ACLR和ACS的新评估方法,用于NB-IOT系统,这考虑了NB-IOT和LTE系统之间的系统带宽差异。当LTE是受害者系统时,如果吞吐量丢失不超过5%,则LTE和NB-IOT系统可能会共存。当NB-IOT是受害者系统时,如果SINR丢失与结果相比,没有共存,NB-IOT和LTE系统可能会共存。仿真结果表明,当NB-IOT BS AC为约45dB时,NB-IOT系统可以与LTE系统共存,UE ACLR在40〜45dB的范围内。

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