The fifth generation(5G) of mobile communications are facing big challenges, due to the proliferation of diversified terminals and unprecedented services such as internet of things(IoT), high-definition videos, virtua...The fifth generation(5G) of mobile communications are facing big challenges, due to the proliferation of diversified terminals and unprecedented services such as internet of things(IoT), high-definition videos, virtual/augmented reality(VR/AR). To accommodate massive connections and astonish mobile traffic, an efficient 5G transport network is required. Optical transport network has been demonstrated to play an important role for carrying 5G radio signals. This paper focuses on the future challenges, recent studies and potential solutions for the 5G flexible optical transport networks with the performances on large-capacity, low-latency and high-efficiency. In addition, we discuss the technology development trends of the 5G transport networks in terms of the optical device, optical transport system, optical switching, and optical networking. Finally, we conclude the paper with the improvement of network intelligence enabled by these technologies to deterministic content delivery over 5G optical transport networks.展开更多
随着5G移动网络通信系统的迅猛发展,该网络体系在社会各行各业中的作用逐渐凸显出来,凭借其高效、灵活和开放等诸多优势,为通信产业进步奠定了扎实基础。5G传送网因可移动通信场景业务、传输速率高以及较低延时性等优势,为拓宽互联网+...随着5G移动网络通信系统的迅猛发展,该网络体系在社会各行各业中的作用逐渐凸显出来,凭借其高效、灵活和开放等诸多优势,为通信产业进步奠定了扎实基础。5G传送网因可移动通信场景业务、传输速率高以及较低延时性等优势,为拓宽互联网+产业链与发展人工智能(Artificial Intelligence,AI)产业等奠定基础。只有不断完善传输承载网结构功能,强化传送网技术支撑与架构设计等,才能使5G传输网不断满足智慧城市与工业高速发展的需求。在5G传送网中应用光传送网(Optical Transport Network,OTN)技术,能够实现低时延、大带宽以及开放管理接口等功能,满足5G传送网综合业务承载需求,不仅能够为5G传送网提供端对端透明传输,而且还可提供距离比较长的数据传送和大容量灵活组网。本文主要探讨OTN技术在5G传送网中的实际应用。展开更多
为解决基于5G技术的城域光传送网(Mobile Optical Transport Network,M-OTN)发展问题,从5G技术和基于5G技术的M-OTN角度入手,对5G技术背景下,M-OTN的运用优势以及主要发展方向进行研究,提出综合承载架构、组网方案、开放式传送网架构以...为解决基于5G技术的城域光传送网(Mobile Optical Transport Network,M-OTN)发展问题,从5G技术和基于5G技术的M-OTN角度入手,对5G技术背景下,M-OTN的运用优势以及主要发展方向进行研究,提出综合承载架构、组网方案、开放式传送网架构以及M-OTN技术、光子集成技术、智能光网络(Automatically Switched Optical Network,ASON)技术的应用和发展前景,以期能够为相关人员以及技术研究提供参考。展开更多
基金supported by the National Nature Science Foundation of China Projects(No.61871051,61771073)the Nature Science Foundation of Beijing project(No.4192039)
文摘The fifth generation(5G) of mobile communications are facing big challenges, due to the proliferation of diversified terminals and unprecedented services such as internet of things(IoT), high-definition videos, virtual/augmented reality(VR/AR). To accommodate massive connections and astonish mobile traffic, an efficient 5G transport network is required. Optical transport network has been demonstrated to play an important role for carrying 5G radio signals. This paper focuses on the future challenges, recent studies and potential solutions for the 5G flexible optical transport networks with the performances on large-capacity, low-latency and high-efficiency. In addition, we discuss the technology development trends of the 5G transport networks in terms of the optical device, optical transport system, optical switching, and optical networking. Finally, we conclude the paper with the improvement of network intelligence enabled by these technologies to deterministic content delivery over 5G optical transport networks.
文摘随着5G移动网络通信系统的迅猛发展,该网络体系在社会各行各业中的作用逐渐凸显出来,凭借其高效、灵活和开放等诸多优势,为通信产业进步奠定了扎实基础。5G传送网因可移动通信场景业务、传输速率高以及较低延时性等优势,为拓宽互联网+产业链与发展人工智能(Artificial Intelligence,AI)产业等奠定基础。只有不断完善传输承载网结构功能,强化传送网技术支撑与架构设计等,才能使5G传输网不断满足智慧城市与工业高速发展的需求。在5G传送网中应用光传送网(Optical Transport Network,OTN)技术,能够实现低时延、大带宽以及开放管理接口等功能,满足5G传送网综合业务承载需求,不仅能够为5G传送网提供端对端透明传输,而且还可提供距离比较长的数据传送和大容量灵活组网。本文主要探讨OTN技术在5G传送网中的实际应用。
