Communication World Network News (CWW) On August 3-4, the 22nd China Optical Web Symposium was held in Beijing. During the conference, Shao Zhong, chief engineer of ZTE's optical access product planning, shared the evolution and development issues of gigabit optical networks, which are generally concerned by the industry, with the theme of "PON Broadens Wisdom, Expands Optical Network Value". The key points include that in the face of the symmetric development trend of gigabit services, XGS-PON can provide upstream and downstream symmetrical 10G bandwidth to meet the growing demand for upstream bandwidth. Facing the trend of network operation and maintenance to intelligent evolution, how to realize service-oriented user-aware intelligent operation and maintenance by loading the computing power of the access network and empowering AI technology, improve the satisfaction of home broadband users, and promote the scale of gigabit users develop. In the face of the ubiquitous application of optical access network, how to adapt to the application requirements of PON scenarios through continuous innovation of optical access network technology, and escort the extension of gigabit optical network to domestic applications and thousands of industries.
In recent years, services such as webcasting, machine vision, SOHO office, cloud storage, and security monitoring have risen rapidly. The demand for network uplink bandwidth is increasing, and network traffic is gradually becoming symmetrical. Symmetric Gigabit Optical Network can provide higher upstream bandwidth capability, which can easily cope with the currently determined high upstream traffic services and various uncertain business needs in the future. It has gradually become an enterprise access application scenario and security video. It meets the rigid needs of access scenarios, and plays a significant role in services such as live broadcast broadband, education broadband, office broadband, and smart home broadband. The symmetric gigabit optical network can provide flexible gigabit package design, and the uplink and downlink bandwidth ratios can be planned according to various ratios to meet the differentiated gigabit broadband needs of users. In the era of 10G PON, XGS-PON provides upstream and downstream symmetrical 10G bandwidth capabilities, effectively supporting the construction of symmetrical Gigabit optical networks. Compared with XG-PON, the upstream bandwidth advantage is increased by 4 times, and the cost per megabit is lower. meet the bandwidth requirements, fully protect the long-term investment income, and maintain the long-term competitive advantage of the future optical network.
The number of gigabit users in my country has exceeded 60 million, and the broadband access market has entered the era of gigabit operation. The future pattern of gigabit broadband users will lay the foundation for the overall pattern of the home broadband market. Gigabit broadband network operation and maintenance needs to move towards intelligence, build a self-smart PON network, and create a gigabit home broadband value management base. Intelligent network operation and maintenance focuses on user experience and perception, proactively discovers and handles hidden faults that affect user perception, and improves user satisfaction; it can use big data user portraits to accurately identify users' personalized needs and guide the market for accurate gigabit marketing. Based on this, the optical access network needs to be loaded with computing power, and the built-in computing power blade of the OLT provides computing power support for intelligent operation and maintenance of massive data collection and analysis. At the same time, the optical access network needs to focus on building a service-oriented broadband user perception management system, which can be visualized based on the data collection, aggregation, and analysis of independent broadband users, as well as the perception indicators of real users, so as to realize the intelligence of gigabit broadband user services. Analyze and guarantee business experience, and further tap users of gigabit broadband value to achieve precise gigabit package marketing.
In the future, all-optical network applications based on PON technology will rapidly expand horizontally and vertically, from home broadband to small, medium and micro enterprises, and then to all-optical applications in thousands of industries; from FTTH to FTTR, enterprise broadband to enterprise all-optical networking, Internet From private line to all-optical local area private network, these application scenarios put forward new requirements on the delay, jitter, packet loss, and bandwidth of the optical access network. The PON network adopts technological innovations such as fixed bandwidth allocation, shortening of uplink bursts, out-of-band windowing mechanism, and rigid pipes to achieve ultra-low latency, ultra-low jitter, and zero packet loss of gigabit optical networks; timestamp information through service flows 、Based on the innovation of time precise scheduling technology, it realizes the precise control of the gigabit optical network delay; through the innovation of 50G PON technology, it realizes the evolution to the ultra-high bandwidth 10G optical network. For FTTR, enterprise all-optical networking and campus all-optical LAN application scenarios, the network coverage distance is short, and it is necessary to build optical components that match the scenario to achieve the best match of scenario, cost, and ease of use.
The China Optical Network Seminar is hosted by the Optical Communications Professional Committee of the China Institute of Communications and the Transmission and Access Expert Advisory Group of the Communications Science and Technology Committee of the Ministry of Industry and Information Technology. challenges and market demands.
