5G核心网云网一体化运维

doi:10.11959/j.issn.1000-0801.2021200

Abstract

Abstract:

Most operators in the world have turned to 5G independent networking architecture and have begun commercial deployment of 5G independent networking architecture.The 5G core network adopts NFV technology, which forms a variety of virtual resources for general computing, storage, and network hardware to achieve dynamic and flexible deployment of network functions and resources based on needs.With large-scale commercial deployment of 5G core network with network function virtualization technology, the operation ＆amp; maintenance of 5G core network is also facing new challenges.The difficulties of operation ＆amp; maintenance brought was analyzed by the virtualization deployment scheme of 5G core network, the architecture and scheme of 5G core network operation ＆amp; maintenance system construction were proposed, and suggestions on the organizational structure of 5G core network cloud-network integration operation ＆amp; maintenance were put forward, so as to provide reference for 5G core network cloud-network integration operation ＆amp; maintenance.

Key words: 5G core network, NFV, cloud-network integration, operation ＆maintenance

CLC Number:

TP393

Xue ZHANG. 5G core network cloud-network integration operation ＆ maintenance[J]. Telecommunications Science, 2021, 37(8): 128-135.

Figures/Tables 5

References 12

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网络功能平面	名称	中文全称	功能	与4G网元的对比
用户面功能	UPF	用户面功能	用户面处理，如分组路由和转发、策略规则、QoS等	SGW/PGW中的用户面功能
控制面功能	AMF	接入和移动性管理功能	主要完成用户的接入控制和移动性管理	MME中的NAS接入控制功能
	SMF	会话管理功能	主要完成会话管理，并完成路由控制、IP 地址分配和合法监听等功能	MME+SGW+PGW 中会话和承载管理的控制面功能
	UDM	统一数据管理	负责用户数据和签约信息的存储	HSS、SPR
	AUSF	认证服务器功能	5G网络的统一鉴权，完成用户接入的身份认证功能	MME中的鉴权功能
	PCF	策略控制功能	支持统一策略框架，提供统一策略规则	PCRF
	NRF	网络注册功能	维护已部署NF的信息，处理从其他NF发送的NF发现请求	5G新增
	NEF	网络开放功能	使内外部应用可以访问网络提供的信息或服务，为不同的使用场景定制化网络能力	5G新增

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5G core network cloud-network integration operation ＆ maintenance

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