An integrated satellite–terrestrial 5G network and its use to demonstrate 5G use cases,International Journal of Satellite Communications and Networking

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An integrated satellite–terrestrial 5G network and its use to demonstrate 5G use cases
International Journal of Satellite Communications and Networking ( IF 0.9 ) Pub Date : 2021-02-20 , DOI: 10.1002/sat.1393
Barry Evans ₁ , Ning Wang ₁ , Yogaratnam Rahulan ₁ , Satish Kumar ₁ , Joe Cahill ₂ , Mark Kavanagh ₂ , Simon Watts ₃ , Duy‐Kha Chau ₄ , Yann Begassat ₄ , Alain‐Pierre Brunel ₄ , Thierry Masson ₅ , Mamoutou Diarra ₅

Affiliation

In this paper, we present a satellite-integrated 5G testbed that was produced for the EU-commissioned Satellite and Terrestrial Networks for 5G (SaT5G) project. We first describe the testbed's 3GPP Rel. 15/6-compliant mobile core and radio access network (RAN) that have been established at the University of Surrey. We then detail how satellite NTN UE and gateway components were integrated into the testbed using virtualization and software-defined orchestration. The satellite element provides 5G backhaul, which in concert with the terrestrial/mobile segment of the testbed forms a fully integrated end-to-end (E2E) 5G network. This hybrid 5G network exercised and validated the four major use cases defined within the SaT5G project: cell backhaul, edge delivery of multimedia content, multicast and caching for media delivery and multilinking using satellite and terrestrial. In this document, we describe the MEC implementations developed to address each of the aforementioned use cases and explore how each MEC system integrates into the 5G network. We also provide measurements from trials of the use cases over a live GEO satellite system and indicate in each case the improvements that result from the use of satellite in the 5G network.

中文翻译：

集成的卫星-地面 5G 网络及其用于演示 5G 用例的用途

在本文中，我们介绍了一个卫星集成 5G 测试台，该测试台是为欧盟委托的 5G 卫星和地面网络 (SaT5G) 项目生产的。我们首先描述测试平台的 3GPP Rel。萨里大学建立的符合 15/6 标准的移动核心和无线电接入网络 (RAN)。然后，我们详细介绍了如何使用虚拟化和软件定义的编排将卫星 NTN UE 和网关组件集成到测试平台中。卫星单元提供 5G 回程，与测试台的地面/移动部分共同构成一个完全集成的端到端 (E2E) 5G 网络。这种混合 5G 网络运用并验证了 SaT5G 项目中定义的四个主要用例：小区回程、多媒体内容的边缘交付、多播和缓存，用于使用卫星和地面的媒体传输和多重链接。在本文档中，我们描述了为解决上述每个用例而开发的 MEC 实施，并探讨了每个 MEC 系统如何集成到 5G 网络中。我们还提供了在实时 GEO 卫星系统上对用例进行试验的测量结果，并在每种情况下指出了在 5G 网络中使用卫星所带来的改进。

更新日期：2021-02-20

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