TD-LTE双流波束赋形技术分析

文章介绍了3GPP Release 9中提出的双流波束赋形技术,对双流波束赋形技术的实现原理以及两种不同的应用场景进行了阐述。通过仿真,文章对单用户双流波束赋形时TM8与TM3和TM7进行了性能对比,并对单用户双流波束赋形和多用户双流波束赋形下的小区吞吐量增益进行了比较分析,分别给出了它们的信噪比适用门限。最后,文章通过外场测试评估,对仿真结果进行了验证,并给出双流波束赋形技术对系统吞吐量增益的结论。

Analysis of TD-LTE Dual-Stream Beamforming Technology

This paper introduces dual-stream beamforming technology of 3GPP Release 9. In this paper, the realization of the principle of dual-stream beamforming technology and two kinds of different application scenarios are described. Through the simulation, this paper analyzes and compares the performance of single-user dual-stream beamforming in TM8 with TM3 and TMT, and the cell throughput gain of the single-user dualstream beamforming and multi-user dual-stream beamforming, and gives the SINR（Signal to Interference plus Noise Ratio） thresholds of their applications. Finally, through field testing and evaluation, the article verifies the simulation results, and gives the conclusion of system throughput gain of the dual-stream beamforming technology.