上行MU-MIMO的UE配对方案研究

Research on UE pairing scheme of the MU-MIMO in LTE uplink

3GPP(第三代合作伙伴计划)在LTE(长期演进)系统中引入了上行MU-MIMO(多用户多输入多输出)技术。MU-MIMO技术分配相同时频资源给多个UE(用户设备),对于提高链路吞吐量和频谱效率有显著的作用。文中针对上行MU-MIMO提出了一种UE配对方案,并对该方案进行了仿真测试。仿真结果表明,该方案能有效的提高系统吞吐量和频谱效率。

In 3GPP, the MU-MIMO technology in uplink is introduced in long term evolution （LTE） system. In the MU-MIMO technology, the same time-frequency resource is allocated to two or more user equipments （UE）, it has significant effects to improve link throughput and spectrum efficiency. This paper presents an UE pairing scheme for MU-MIMO in LTE uplink and simulates and tests its performances. The simulation results indicate that this scheme effectively improves link throughput and spectrum efficiency.