摘要本文对新一代通信系统，即 5G 的关键技术进行研究。对大规模 MIMO、超 密集组网、新型多址、全频谱接入这四项技术进行了研究，并深入探讨了 CoMP 技术。

CoMP 技术在抑制小区间干扰和提高系统吞吐率上贡献卓越，能避免大量数 据反馈和信息全系统内共享带来的系统负担。在分布式多小区多点协作中，考虑 到实际中小区内和小区间干扰同时存在且用户数大于基站天线数的情况，需选择 合适的协作用户集。本文探讨了基于本地信道状态信息的协作波束成形下的迫零 预编码和最小均方误差预编码，并分别提出了基于这两种预编码的最优用户选择 算法。73299

毕业论文关键词 5G 大规模 MIMO 超密集组网 CoMP ZF MMSE

Title Research on Key Technologies of Next  Generation  Mobile Communication

Abstract Key technologies of new generation of communication system(5G) are studied in this paper。 To support the next generation mobile communication system(5G), Massive MIMO, Heterogeneous Network Deployments, Novel Multiple Access Technology, Flexible spectrum Management and CoMP technology are needed。 The first four are studied and CoMP is discussed deeply in this paper。

CoMP technology is focused on。 It contributes a lot when restrains interference among cells and can improve the throughput of system。 It helps avoid the burden of a large number of data feedback and information sharing within the system。 Considering the fact that there are so much interference at the same time and the number of users is larger than the base station’s antennas, we need choose appropriate cooperative user set。 Based on the local channel state information, the zero forcing pre-coding and the minimum mean square error are proposed。 Optimal user selection algorithm based on these two kinds of pre-coding is proposed。

Keywords 5G, Massive MIMO, Heterogeneous Network Deployments, CoMP, ZF, MMSE

目 次

1 绪论 1

1。1 课题研究背景 1

1。2 研究现状 3

1。3 研究意义 5

1。4 论文安排 6

2 5G 无线关键技术 7

2。1 大规模天线阵列 7

2。2 超密集组网 11

2。3 新型多址 13

2。4 全频谱接入 16

3 多点协作传输（CoMP）技术 20

3。1 单小区/多小区 CoMP 的技术分类 21

3。2 多小区协作调度/波束赋形(CS/CB) 22

3。3 多小区联合处理/传输（JP/JT） 24