短期波束赋形系统中CQI反馈技术在资源调度中的应用研究  

CQI feedback technology research for resource scheduling in short-term BF system

作　　者：陈丽琴 Chen Liqin(Applied Engineering college,Zhejiang Vocational College of Commerce,Hangzhou 310053,China)

机构地区：[1]浙江商业职业技术学院

出　　处：《电子测量技术》2018年第23期123-126,共4页Electronic Measurement Technology

基　　金：浙江商业职业技术学院科研经费项目(SZYZD201801)资助

摘　　要：在奇异值分解的基础上建立基于特征值的波束赋形技术,提出了有效的信道质量指示(CQI)值可用性保证了信道质量的可靠性评估,从而可以最好的调度相关的终端。首先介绍了高速无线通信波束赋形系统的CQI报告模式选择,并且基于短期波束赋形系统详细阐述了CQI补偿理论计算。此外,概述了CQI值和过程信息应用方法和处理结果。最后,对于不同的CQI反馈模式和探测参考信号(SRS)传输给出了详细的仿真,得出结论SRS延迟对短期波束赋形的影响不大,移动速度却能够导致CQI快速变化,可以造成重大的永久CQI衰耗的影响。Beamforming technology on the characteristic value is constructed on the basis of the singular value decomposition, and puts forward the effective CQI(channel quality indicator) value availability ensures reliable channel quality assessment, which can be the best scheduling related to the terminal. Firstly, the selection of CQI reporting mode for high speed wireless communication beamforming system is introduced. In addition, the application methods and processing results of CQI value and process information are summarized. Finally, for different CQI feedback mode and SRS transmission gives the details of the simulation, the conclusion SRS delay on short-term beamforming impact is not serious, the speed can result in CQI rapid change, can cause significant permanent CQI attenuation effect.

关 键 词：通信系统 信道质量指示 流量模式 闭环MIMO SRS发送值 误码率 

分 类 号：TN929.5[电子电信—通信与信息系统]