WO2022007472A1 - 一种基于积木式架构的面向5g的智能光接入网局端云系统 - Google Patents

一种基于积木式架构的面向5g的智能光接入网局端云系统 Download PDF

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WO2022007472A1
WO2022007472A1 PCT/CN2021/089236 CN2021089236W WO2022007472A1 WO 2022007472 A1 WO2022007472 A1 WO 2022007472A1 CN 2021089236 W CN2021089236 W CN 2021089236W WO 2022007472 A1 WO2022007472 A1 WO 2022007472A1
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virtual
pool
function
building block
cloud system
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French (fr)
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朱敏
任雪琦
周怡君
岳鹏
顾萍萍
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东南大学
太仓市同维电子有限公司
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/25—Arrangements specific to fibre transmission
    • H04B10/2575—Radio-over-fibre, e.g. radio frequency signal modulated onto an optical carrier
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/25—Arrangements specific to fibre transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00—Packet switching elements
    • H04L49/15—Interconnection of switching modules
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00—Packet switching elements
    • H04L49/70—Virtual switches

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  • the invention relates to the field of 5G and optical fiber communication, in particular to a 5G-oriented intelligent optical access network central office cloud system based on a building block architecture.
  • the product of this project further integrates new technologies such as resource pooling (cloudification), software-defined optical switching, and machine learning artificial intelligence to realize the integration of optical fiber access and 5G mobile fronthaul based on building block architecture.
  • resource pooling cloudification
  • software-defined optical switching software-defined optical switching
  • machine learning artificial intelligence to realize the integration of optical fiber access and 5G mobile fronthaul based on building block architecture.
  • Green intelligent access cloud system equipment The product of this project is in a leading position at home and abroad, the market prospect is very promising, and the market potential is huge.
  • the traditional access network system exposes its limitations in many aspects.
  • the closed network control architecture creates barriers to resource sharing. At the same time, it lacks a global perspective and real-time network status information, and cannot quickly respond to changes in network traffic and schedule resources. Network control lacks flexibility, and operational control costs are high.
  • the purpose of the present invention is to provide a 5G-oriented intelligent optical access based on a building block architecture that greatly reduces network cost and energy consumption, while achieving higher reliability and flexibility, aiming at the shortcomings of the existing technology.
  • Network office cloud system The purpose of the present invention is to provide a 5G-oriented intelligent optical access based on a building block architecture that greatly reduces network cost and energy consumption, while achieving higher reliability and flexibility, aiming at the shortcomings of the existing technology.
  • the 5G-oriented intelligent optical access network central office cloud system based on the building block architecture of the present invention includes a control plane and a transmission plane, wherein the control plane includes: an intelligent access cloud system software-defined controller and a network A function virtualization orchestration controller; the transport plane includes: a resource pool, an OpenFlow virtual switch and its client layer agent; the resource pool includes a virtual OLT line terminal pool, a virtual baseband processing unit vBBU pool, and a server pool carrying a virtual network function vNF .
  • the virtual OLT line terminal pool virtualizes the function of the OLT line card and maps it to a general x86 server to realize, Provide the OLT line card uplink and downlink data service forwarding function;
  • the virtual baseband processing unit vBBU pool virtualizes the BBU function and maps it to a general x86 server to realize the baseband signal processing function of the RAN mobile service;
  • the bearer virtual network The server pool of the function vNF maps the control plane functions on the traditional OLT and the functions of the mobile communication core network to the general x86 server to provide edge cloud services; the above three resource pools are linked by the OpenFlow virtual switch , interconnected to form a building block architecture.
  • the present invention has the following advantages:
  • the 5G-oriented intelligent access cloud system of the present invention completely subverts the traditional access network architecture, and adopts a building block architecture to build an intelligent broadband access network that supports all services.
  • the invention utilizes NFV technology, which can quickly add and control virtual devices with modular functions as needed, and provide various differentiated applications and services, like building blocks, which can greatly shorten the development cycle.
  • the present invention adopts a building block architecture, which completes an innovation for the entire optical access network, and has the characteristics of open cloud, modular combination, flexible deployment, simplified operation and maintenance, etc., and responds to existing and future applications in a flexible and changeable way.
  • This not only greatly reduces network costs and energy consumption, but also achieves higher reliability and flexibility, greatly improving user services and technological innovation in the new business landscape.
  • Figure 1 is a schematic structural diagram of the present invention.
  • the 5G-oriented intelligent optical access network central office cloud system based on the building block architecture provided in this embodiment includes a control plane and a transmission plane, wherein the control plane includes: an intelligent access cloud system A software-defined controller and a network function virtualization orchestration controller; the transport plane includes: a resource pool, an OpenFlow virtual switch and its client layer agent; the resource pool includes a virtual OLT line terminal pool, a virtual baseband processing unit vBBU pool, a virtual Server pool for network function vNF.
  • the control plane includes: an intelligent access cloud system A software-defined controller and a network function virtualization orchestration controller
  • the transport plane includes: a resource pool, an OpenFlow virtual switch and its client layer agent
  • the resource pool includes a virtual OLT line terminal pool, a virtual baseband processing unit vBBU pool, a virtual Server pool for network function vNF.
  • the virtual OLT line terminal pool virtualizes the OLT line card function and maps it to a general x86 server for implementation, providing The OLT line card upstream and downstream data service forwarding function;
  • the virtual baseband processing unit vBBU pool virtualizes the BBU function and maps it to a general x86 server to realize the baseband signal processing function of the RAN mobile service;
  • the bearer virtual network function The server pool of vNF maps the control plane functions on the traditional OLT and the functions of the mobile communication core network to the general x86 server to provide edge cloud services; the above three resource pools are linked by the OpenFlow virtual switch, Interconnected to form a building block architecture.
  • the virtual OLT line terminal pool is connected to the wireless light source access network PON in the south direction, and the core network is connected to the north direction to forward the uplink and downlink data services of end users;
  • Both the pool and the server pool carrying the virtual network function vNF are connected to the OpenFlow virtual switch to realize data interaction between the three resource pools;
  • the intelligent access cloud system software-defined controller and network function virtualization orchestration controller in the control plane the control and management of these three resource pools are realized through the OpenFlow client layer agent in the transport plane.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Small-Scale Networks (AREA)

Abstract

本发明公开了一种基于积木式架构的面向5G的智能光接入网局端云系统，包括：虚拟OLT线路终端池、虚拟基带处理单元vBBU池、承载虚拟网络功能vNF的服务器池等三个资源池，OpenFlow虚拟交换机及其客户层代理器，以及智能接入云系统软件定义控制器和网络功能虚拟化编排控制器；其中，OpenFlow虚拟交换机将上述三种资源池联系在一起，互联互通。本发明的核心功能在于实现了光纤、无线和边缘数据中心相融合的未来智能接入云系统，并采用积木式架构，对传统的光接入网局端站点完成一次革新升级，具有开放云化、模块组合、灵活部署、简化运维等特点。

Description

一种基于积木式架构的面向5G的智能光接入网局端云系统 技术领域
本发明涉及5G和光纤通信领域，具体涉及一种基于积木式架构的面向5G的智能光接入网局端云系统。
背景技术
近年来，无源光网络(PON)已成为光接入网领域中光纤到户/到楼(FTTH/FTTB)应用的主流技术，在发达国家内的家庭渗透率达到50％-75％。2018年，亚太地区的FTTH/FTTB用户占世界总用户的76％，中国已成为世界上拥有FTTH/FTTB用户最多的国家之一。光接入网的广泛铺设需消耗大量能量，其能耗约占整个电信网络能耗的70％。随着5G应用的不断发展，基于PON技术的光前传网已成为最有潜力的方案。伴随各式各样的互联网应用(如视频会议、智能家庭系统、IPTV等)不断兴起，网络业务日益多样化与复杂化，并对带宽需求和网络性能提出不同的要求，定制化、差异化需求日益迫切。因此，传统的光接入网架构与技术难以满足需求，构建光纤、无线和数据中心相融合的未来智能接入成为了电信运营商的首要目标。
2008年，以软件定义网络(SDN)和网络功能虚拟化(NFV)为代表的新技术，开启了未来网络与通信研究的热潮。2017年全球未来网络发展峰会在南京召开，刘韵洁院士在大会报告中指出，互联网迎来了新一轮历史变革，并将进入未来网络发展阶段。基于SDN/NFV思想的接入网研究起步较晚，直到2015年，AT&T提出了中心局重构数据中心项目(全称Central Office Re-Architected as a Data Center，简称CORD)，其目标是将电信中心局CO重构为类似于云服务提供商的数据中心，灵活地提供网络和信息服务。本项目产品在CORD的基础上，进一步融合资源池化(云化)、软件定义光交换和机器学习人工智能等新技术，以实现基于积木式架构的融合光纤接入和5G移动前传于一体的绿色智能接入云系统设备。本项目产品处于国内外领先地位，市场前景十分看好，市场潜力十分巨大。
[根据细则26改正08.05.2021]　
近几年，已有部分研究工作尝试将SDN技术引入到光接入网中。西班牙UPC大学Hamzeh Khalili等人实现了基于软件定义的SIEPON系统，其OLT设备中MAC控制层的Reporting、Gating处理等功能被虚拟化，并将部分虚拟化的功能转移到SDN中央控制器中。台湾中正大学Steven S.W.Lee等人实验提出，将整个GPON系统抽象成一个虚拟OpenFlow交换机，内嵌在OLT中的OF代理器，一方面与外部的SDN中央控制器相通信，另一方面通过ONU管理控制接口(OMCI)控制着所有ONU。但是这些方案仅仅将SDN概念运用到数据包转发处理上面，没有涉及到PON的控制架构和资源配置方面。英国Bangor 大学Xiao Duan等人提出了一种新型的时分/波分复用无源光网络，在OLT和各个ONU中实现一种内嵌收发器的数字正交滤波器，并采用集中式的SDN控制器进行控制，使得ONU能够动态自适应地接入到共享的馈线光纤中，增加系统可重配置性和智能化。美国加州大学Davis分校的Divya Chitimalla等人提出了一种意识到业务应用层的软件定义EPON系统，利用收集到的客户端信息，动态调整资源分配策略，改善ONU用户体验。但是这些方案没有涉及到NFV、资源池化和智能优化配置等新技术，在网络体系架构上仍延续原有的结构，没有实现光纤接入与移动业务的融合。
面对未来智能接入网发展需求，传统的接入网系统在诸多方面暴露出其局限性。第一，封闭的网络控制架构给资源共享造成壁垒，同时缺乏全局视角和网络实时状态信息，无法快速响应网络流量变化而调度资源。网络控制缺乏灵活性，运营控制成本较高。第二，缺少一致的数据模型以对异构资源描述进行结构化抽象，同时缺少有效控制模型对抽象资源进行管理和分配，难以满足用户在多场景、多业务情形下的一致的服务体验。第三，无法满足业务多样化与用户定制化需求，网络设备更新历时长，成本高，标准化过程复杂，与网络业务快速创新模式形成鲜明反差。
发明内容
技术问题：本发明目的在于针对现有技术的不足，提供了一种大大降低网络成本和能耗，同时可获得更高的可靠性和灵活性的基于积木式架构的面向5G的智能光接入网局端云系统。
技术方案：本发明的基于积木式架构的面向5G的智能光接入网局端云系统，该系统包括控制平面和传送平面，其中，控制平面包括：智能接入云系统软件定义控制器和网络功能虚拟化编排控制器；传送平面包括：资源池、OpenFlow虚拟交换机及其客户层代理器；所述资源池包括虚拟OLT线路终端池、虚拟基带处理单元vBBU池、承载虚拟网络功能vNF的服务器池。
本发明的优选方案中，基于积木式架构的面向5G的智能光接入网局端云系统，所述虚拟OLT线路终端池将OLT线路卡功能虚拟化，并映射到通用的x86服务器上来实现，提供OLT线路卡上下行数据业务转发功能；所述虚拟基带处理单元vBBU池将BBU功能虚拟化，并映射到通用的x86服务器上来实现，完成RAN移动业务的基带信号处理功能；所述承载虚拟网络功能vNF的服务器池将传统OLT上的控制平面功能，以及移动通信核心网的功能，映射到通用的x86服务器上来实现，提供边缘云服务；上述三种资源池由所述OpenFlow虚拟交换机联系在一起，互联互通，形成一种积木式架构。
有益效果：与现有技术相比，本发明具有以下优点：
1)相对于传统的光接入网设备，本发明面向5G的智能接入云系统，彻底颠覆了传统接入网架构，采用积木式构架，建设支持全业务的智能宽带接入网络。
2)该发明利用NFV技术，可以迅速地根据需要来添加、控制功能模块化的虚拟设备，提供各种差异化的应用程序和服务，如同搭积木，能够大大缩短开发周期。
3)本发明采用积木式架构，对整个光接入网完成了一次革新，具有开放云化、模块组合、灵活部署、简化运维等特点，以灵活多变的方式应对现有和未来的应用与服务，这不仅大大降低网络成本和能耗，同时获得更高的可靠性和灵活性，大大提升了新业务格局下的用户服务和技术创新。
附图说明
图1为本发明结构示意图。
具体实施方式
下面结合附图对本发明的实施例作详细说明：本实施例在以本发明技术方案为前提下进行实施，给出了详细的实施方式和过程，但本发明的保护范围不限于下述的实施例。
如图1所示，本实施例中提供的基于积木式架构的面向5G的智能光接入网局端云系统，该系统包括控制平面和传送平面，其中，控制平面包括：智能接入云系统软件定义控制器和网络功能虚拟化编排控制器；传送平面包括：资源池、OpenFlow虚拟交换机及其客户层代理器；所述资源池包括虚拟OLT线路终端池、虚拟基带处理单元vBBU池、承载虚拟网络功能vNF的服务器池。
在本实施例中，基于积木式架构的面向5G的智能光接入网局端云系统，所述虚拟OLT线路终端池将OLT线路卡功能虚拟化，并映射到通用的x86服务器上来实现，提供OLT线路卡上下行数据业务转发功能；所述虚拟基带处理单元vBBU池将BBU功能虚拟化，并映射到通用的x86服务器上来实现，完成RAN移动业务的基带信号处理功能；所述承载虚拟网络功能vNF的服务器池将传统OLT上的控制平面功能，以及移动通信核心网的功能，映射到通用的x86服务器上来实现，提供边缘云服务；上述三种资源池由所述OpenFlow虚拟交换机联系在一起，互联互通，形成一种积木式架构。
如附图1所示虚拟OLT线路终端池南向连接无线光源接入网PON，北向连接核心网，以转发终端用户的上下行数据业务；传送平面内虚拟OLT线路终端池、虚拟基带处理单元vBBU池和承载虚拟网络功能vNF的服务器池，均与OpenFlow虚拟交换机相连，以实现三个资源池之间的数据交互；控制平面中的智能接入云系统软件定义控制器和网络功能虚拟化编排控制器，通过传送平面内OpenFlow客户层代理器实现对这三个资源池的控制与管理。
上述实施例仅是本发明的优选实施方式，应当指出：对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和等同替换，这些对本发明权利要求进行改进和等同替换后的技术方案，均落入本发明的保护范围。

Claims (2)

  1. 一种基于积木式架构的面向5G的智能光接入网局端云系统，其特征在于，所述系统包括控制平面和传送平面，其中，控制平面包括：智能接入云系统软件定义控制器和网络功能虚拟化编排控制器；传送平面包括：资源池、OpenFlow虚拟交换机及其客户层代理器；所述资源池包括虚拟OLT线路终端池、虚拟基带处理单元vBBU池、承载虚拟网络功能vNF的服务器池。
  2. 根据权利要求1所述的基于积木式架构的面向5G的智能光接入网局端云系统，其特征在于：所述虚拟OLT线路终端池将OLT线路卡功能虚拟化，并映射到通用的x86服务器上来实现，提供OLT线路卡上下行数据业务转发功能；所述虚拟基带处理单元vBBU池将BBU功能虚拟化，并映射到通用的x86服务器上来实现，完成RAN移动业务的基带信号处理功能；所述承载虚拟网络功能vNF的服务器池将传统OLT上的控制平面功能，以及移动通信核心网的功能，映射到通用的x86服务器上来实现，提供边缘云服务；上述三种资源池由所述OpenFlow虚拟交换机联系在一起，互联互通，形成一种积木式架构。
PCT/CN2021/089236 2020-07-07 2021-04-23 一种基于积木式架构的面向5g的智能光接入网局端云系统 WO2022007472A1 (zh)

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