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协作多点传输与接收(Coordinated Multiple Point transmission and reception,CoMP)技术作为提高小区吞吐量尤其是小区边缘用户吞吐量的关键技术,目前已经成为LTE-Advanced的研究热点之一。就其中基于SU-MIMO的下行联合传输(CoMP-SU-MIMO)技术进行了研究,分析了系统模型,提出了用户信干噪比(SINR)的计算方法。最后对系统进行了系统级仿真,并通过与传统的SU-MIMO性能比较,得出了联合传输技术在提高边缘用户性能和小区吞吐量方面的优势。
Coordinated Multiple Point Transmission and Reception (CoMP) technology, as a key technology for improving cell throughput especially for cell edge user throughput, has become one of the research hotspots in LTE-Advanced. In this paper, the SU-MIMO-based downlink co-transmission (CoMP-SU-MIMO) technology is studied. The system model is analyzed and the SINR calculation method is proposed. Finally, the system is simulated at the system level, and compared with the traditional SU-MIMO performance, the advantages of joint transmission technology in improving edge user performance and cell throughput.