LTE-U干扰检测及避免机制的研究

Research on LTE-U Interference Detection and Avoidance

为了满足用户对高速率、低时延的网络需求,解决现网频谱资源稀缺的问题,介绍了一种非授权频段与授权频段载波聚合的方法,来提高频谱资源的利用率。但非授权频段缺乏相互干扰协调及管理机制,通过分析目前3种LTE-U的干扰检测及避免方法的优缺点,研究了一种LTE-U干扰检测及避免的算法,该算法能实现LTE-U Small Cell干扰的自动化检测和优化,从而达到提升LTE-U Small Cell工作可靠性的效果。

In order to meet the network requirements of users for high speed and low latency and deal with the spectral scarcity in existing networks, a carrier aggregation method combined unlicensed frequency band and licensed frequency band was introduced to increase the spectral utilization. However, there are no interference coordination and management in the unlicensed frequency band. Based on analyses on the advantages and disadvantages of three LTE-U interference detection and avoidance methods, a LTE-U interfere-nce detection and avoidance method was studied which can implement LTE-U Small Cell interference automatic detection and optimization to enhance the reliability of LTE-U Small Cell.