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A way forward for accommodating NFV in 3GPP 5G systems

机译：一种用于在3GPP 5G系统中容纳NFV的前进方式

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Recently, the specifications for 5G system architecture and procedures including TS 23.501 and 23.502 are being developed by 3GPP. In the specifications, one of key principles and concept is to separate the user plane (UP) functions from the control plane (CP) functions, allowing independent scalability, evolution and flexible deployments and modularize the functions design to enable flexible and efficient network slicing. Therefore, a lot of new network functions (NFs) for 5G system has been newly discussed and specified, such as AMF, SMF, UPF, NRF, NEF, etc. In this regard, it is important to see that the NFs can be implemented as a virtualized network functions (VNF) instantiated on a Network Functions Virtualization (NFV) platform. It is obviously understood that NFV can offer a more efficient way to design, deploy and manage 3GPP network service, since NFV relocates 3GPP 5G NFs from dedicated hardware to generic servers and virtualization infrastructure. However, it is not clearly investigated yet regarding NFV impacts on 3GPP 5G systems from standards perspective. In this paper, we discuss a way forward for accommodating NFV in 3GPP 5G system including distributed NFVs, MEC and NFV integration, and MANO support in 3GPP management system, etc.
机译：最近，3GPP开发了5G系统架构和包括TS 23.501和23.502的程序的规范。在规范中，关键原理和概念之一是将用户平面（向上）功能与控制平面（CP）函数分开，允许独立的可伸缩性，进化和灵活的部署，并模块化功能设计，以实现灵活高效的网络切片。因此，已经新讨论了大量新的网络功能（NFS），并指定了AMF，SMF，UPF，NRF，NEF等。在这方面，重要的是要看到NFS可以实现作为在网络功能虚拟化（NFV）平台上实例化的虚拟化网络功能（VNF）。显然，NFV可以提供更有效的设计，部署和管理3GPP网络服务，因为NFV将3GPP 5G NFS从专用硬件重新定位到通用服务器和虚拟化基础架构。但是，目前尚未明确调查关于3GPP 5G系统从标准角度对3GPP 5G系统的影响。在本文中，我们讨论了在3GPP 5G系统中容纳NFV的前进方式，包括分布式NFVS，MEC和NFV集成，以及3GPP管理系统的Mano支持等。

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