5G高低频协作组网场景下小区范围动态扩展优化技术

[摘要] 针对5G高低频协作组网部署场景，提出了一种针对该场景的小区范围扩展优化技术，目标是匹配高低频协作组网时高频小小区与低频宏小区间的不同资源分配方式。该技术可以提高5G高低频协作组网时的系统吞吐量和能量效率。与传统基于参考信号接收功率（RSRP）的小区范围扩展不同，基于参考信号接收速率（RSRR）的新型小区范围扩展技术，可以有效提高系统吞吐量和能量效率。

[关键词] 高低频协作组网；小区范围扩展；RSRP；RSRR；系统吞吐量；能量效率

[Abstract] In this paper, a new dynamic cell range expansion optimization technology for 5G multi-frequency cooperative networks is proposed, aiming at matching different resource allocation methods between macro cell with low frequency and small cell with high frequency. This technology can improve the network throughput and energy efficiency. The reference signal received rate (RSRR)-based cell range expansion (CRE) technology which is different from traditional reference signal received power (RSRP)-based CRE is proposed. The simulation results show that under 5G multi-frequency cooperative networks, the proposed RSRR-based CRE has better performance over traditional RSRP-based CRE in system throughput and energy efficiency.

[Keywords] multi-frequency cooperative networks; CRE; RSRP; RSRR; system throughput; energy efficiency