5G eMBB空口时延分析与增强技术研究

Analysis on 5G eMBB Uu Interface Latency and Study on Enhancement Technique

为进一步增强面向eMBB场景的空口时延性能,从5G NR的空口设计、物理层关键技术入手,分析了eMBB场景下的5G NR空口时延,并提出一种基于TDD/FDD协同的上行增强技术,最后通过Ping业务时延分析为例,给出在3GPP模型假设下的4G LTE、5G NR和采用上行增强技术后的5G NR的时延对比,论证了所提方案的可行性和有效性。

In order to enhance the latency performance of 5G NR systems, this paper investigates 5G NR Uu interface designand key technologies of physical layer to analyze the latency of eMBB NR. An uplink enhancement scheme is furtherproposed based on the TDD/FDD coordination. Taking the Ping service delay analysis as an example, the delaycomparisons are given among 4G LTE, 5G NR with and without the uplink enhancement technique under 3GPPmodel, which demonstrates the feasibility and effectiveness of the proposed scheme.