5G Deployment: Standalone vs. Non-Standalone from the Operator Perspective
5G Deployment: Standalone vs. Non-Standalone from the Operator Perspective
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DOI：
10.1109/mcom.001.2000230
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发表时间：
2020-11-01
影响因子：
11.2
通讯作者：
Li, Na
中科院分区：
文献类型：
--
作者：
Liu, Guangyi;Huang, Yuhong;Li, Na
第五代（5G）移动的网络是为开拓2020年以后的移动的市场而标准化和发展的。为了应对5G部署的多样化策略，不同的移动的运营商已经向3GPP提出了五种备选网络架构。为了满足一些运营商的紧急部署要求，2017年底完成了5G的早期部署，称为非独立（NSA）新无线电（NR）。在此之后，新的5G系统的标准化，包括独立（SA）新无线电接入网络，于2018年6月完成。本文从覆盖范围、网络能力、4G与5G互通、网络部署的复杂性和成本以及最新的行业进展等方面对SA NR和NSA NR部署模式进行了分析和比较。NSA NR在初始阶段的互通性能表现更好，而SA NR在网络能力、设备性能、简单网络部署和成本效率方面表现更好。5G SA NR被推荐给那些有雄心在垂直和企业市场探索新机会的运营商。
The fifth generation (5G) mobile network is standardized and developed to explore the mobile market beyond 2020. In response to the diverse strategies of 5G deployment, five alternative network architectures have been proposed to 3GPP by different mobile operators. To fulfill the urgent deployment requirement from some operators, an early drop of 5G, termed as non-standalone (NSA) new radio (NR), was completed at the end of 2017. After that, the standardization of a new 5G system, including th standalone (SA) new radio access network, was finished in June 2018. This article analyzes and compares the SA NR and NSA NR deployment modes in terms of coverage, network capability, interworking between 4G and 5G, complexity and cost of network deployment, and the latest industry progress. NSA NR performs better in interworking performance in the initial phase, while SA NR performs better in network capabilities, device performance, simple network deployment, and cost efficiency. 5G SA NR is recommended for operators who have the ambition to explore new opportunities in the vertical and enterprise markets.