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2019 Broadband Network Trend forecast: 10G PON, Cloud and so on will become a hot spot

Communication World Network News (CWW) China has been implementing the "broadband China" strategy for more than 5 years, the "broadband China" strategy has been effective, China's basic operators have implemented a large-scale "light change", so that China's fixed broadband population penetration rate has steadily improved, effectively supporting the supply-side reform of various industries

2019年宽带网络趋势预测:10G PON、云化等将成热点

After the construction of large-scale basic network, China's broadband access Network has formed a variety of devices and equipment manufacturers of equipment coexisting complex situation, broadband market also tends to saturation. At present, the large-scale construction of broadband network in China has been basically completed, in the future need to combine the specific market and business development needs for precision construction. In the development of broadband network in the 2019, 10G PON, optical access network cloud, 5G bearing, virtual reality and so on will become hot spots

10G pon deployment times into

At present, 10G Pon standard and industrial chain has matured. 10G PON continues the pattern led by IEEE and ITU respectively: IEEE has developed 10G on the basis of Epon (802.3AH) Epon Technical Standard (802.3AV), and follow the uplink wavelength of epon, without the need to increase the ODN can coexist with the Epon terminal in the same network. ITU-T has developed xg-pon technical Specifications (G.987.x) and Xgs-pon Standards (G.9807.1) for asymmetric 10G pon on the basis of Gpon (G.984.x)

2019年宽带网络趋势预测:10G PON、云化等将成热点

China Unicom Broadband Access network equipment in the gpon and epon coexist, gpon technology-style equipment more; the deployment of 10G PON needs to consider the coexistence of existing gpon and epon devices, as well as the interoperability of heterogeneous vendor equipment. Industry is actively promoting the maturity and deployment of 10G PON: China Unicom completed the interoperability verification of 10G Pon FTTH equipment of the mainstream equipment merchants in 2017, and piloted FTTH Gigabit business and equipment interoperability in Beijing; in 2018, China Unicom completed the 10G of the mainstream equipment merchants under the condition of interoperability Collection test of PON equipment; it is reported that in 2018, some other operators also completed the 10G PON Equipment collection test and related work

2019 in the field of optical access network construction, China Unicom will carry out 10G Pon Bureau equipment, HGU equipment and supporting facilities collection and scale deployment, with FTTH Gigabit Broadband service opening technical conditions. In the field of optical access network standards, the ITU-T 50G TDM PON Standard will achieve more consistent conclusions and phase out the IEEE and ITU set of PON standards

Optical access Network Cloud emerging

With the increasing demand for integrated business communication and the emergence of customized and differentiated requirements, the data forwarding surface of optical network is developing in the direction of ultra-long distance, oversized capacity and ultra-high speed, and the control management surface is developing in the direction of intelligent and flexible, software definition, user interaction, safe and reliable, high efficiency and energy saving. Therefore, openness and low cost have become the core goal of network development in the future. How to realize the user's fast access, fast fault location and recovery, convenient and quick configuration of the user terminal, improve the user experience, control operating costs and improve the return rate of the network, has also become an urgent problem to be solved in the access network

2019年宽带网络趋势预测:10G PON、云化等将成热点

2019 virtualization will become an important evolution direction of optical access network, the following four points will become an important development direction of optical access network: First, the traditional operation and maintenance system (OSS/EMS/RMS) coexists with each other and evolves to a new cloud architecture, the second is the decoupling between CPE and co, and the other is that traditional equipment works under the new cloud architecture ; Four is the introduction of new business in the long process of the evolution of network architecture

With the introduction of virtualization technology, OLT will support network slicing, Vxlan technology, and can be managed by traditional EMS and new Access network controller at the same time to ensure the smooth evolution of access network; Traditional EMS is responsible for network element management and basic failure, configuration, billing, performance, and security management functions The access network controller, while realizing the flexible deployment of the business and the network Automation configuration, will also serve as a flexible and open software platform to lay the foundation for the development of the new Internet-based business in the future

2019年宽带网络趋势预测:10G PON、云化等将成热点

By introducing virtualization technology into the access network, the following results are expected to be achieved.
First, improve the utilization of access network resources: To achieve network slices between the business resources, business planning, business operation, business maintenance and slice management of independent isolation and differentiation settings, improve the degree of automation of network management maintenance.
The second is to realize the rapid automatic deployment of the network, flexible adjustment: Through the Access Network SDN controller, the completion of business distribution and configuration and connectivity with the Metro equipment control surface, to provide on-demand shunt functions and dynamic and flexible QoS policy deployment. Third, the ability to open and integrate scenarios: On the one hand, through the collaborative orchestration layer of the network capabilities of the open API, the ability to access the net (such as connection bandwidth adjustment, access to network slices, etc.) open, or to provide self-service for end users, on the other hand, through the integration of SDN controller processing and control, Support the control function protocol stack or the corresponding management configuration strategy similar to the access network and the metropolitan area network

2019, China Unicom plans to carry out technical validation tests and small-scale pilots on the above access network virtualization technology and application scenarios on the mainstream 10G pon equipment. It is expected that the virtualization proposal will also be incorporated into ITU-T's 50G TDM PON standard system, becoming one of the implementation schemes of 50G Pon, to enhance the elasticity of the optical access network to meet customer needs

Optical access network carrying 5G asymptotic asymptotic

At the end of 2018, China's 5G spectrum had been internally divided, and China Unicom was issued a 3.5GHz band. 5G high speed, high frequency band and other characteristics of the carrier network put forward the following key requirements: Ultra-high speed (20GBIT/S), ultra-low latency (MS level), high-precision synchronization (100ns level), flexible routing, network slices and low bit cost. In addition to the connection of 5G fiber optic network, the network architecture, function distribution, topology, equipment form and even transmission medium will change important

2019 related small and micro-base stations, indoor coverage and room sub-system related technical research, product development, construction department will continue to carry out. In urban areas 5 G will use both centimeter and millimeter waves, the physical base station density per square kilometre and the number of fibre-optic connections may increase significantly, while the fixed network FTTX coverage of the number of users and fiber connection size is larger, FTTx fiber connection density is about 10 times times that of 5G. In order to maximize cost control, the industry needs to take full advantage of existing FTTX fiber optic infrastructure, including machine room cabinets, pipe holes, rods, ODN, optical cables, optical fibers and so on

Implementing a fixed-shift infrastructure sharing for 5G hosting is expected to have a number of benefits

One is the scalability is good: 5G new business application promotion leads to increased traffic, 5G wireless access network capacity demand will continue to grow, and FTTx has a good long-term evolution and upgrade capabilities, with the evolution of PON technology, can provide a larger capacity expansion space on the same fiber optic infrastructure.
Second, the quality of service is good: FTTx has high-quality QoS capabilities, can support voice, data and video triple business, can better support 5G business. Third, synchronous deployment is convenient and efficient: 5G requirements must support packet-based and physical layer-based synchronization, while Pon has the characteristics of flexible adaptation

China Unicom led the wavelength Adaptive Access WDM (PAB-WDM) that is, g.698.4 (formerly G.metro) standard has been passed in ITU-T, PAB-WDM has 40-channel and single-wave 10G carrying business capabilities. In 2019, China Unicom led the development of WDM CPE, will be combined with PAB-WDM technology for 5G prequel, Medium and other scenes, greatly enhance the bearing capacity of the backbone fiber to greatly save construction investment

China Unicom led the wavelength Adaptive Access WDM (PAB-WDM) that is, g.698.4 (formerly G.metro) standard has been passed in ITU-T, PAB-WDM has 40-channel and single-wave 10G carrying business capabilities. In 2019, China Unicom led the development of WDM CPE, will be combined with PAB-WDM technology for 5G prequel, Medium and other scenes, greatly enhance the bearing capacity of the backbone fiber to greatly save construction investment

Broadband will not only make great progress in technology in the 2019, but will also usher in new growth points in terms of business. With the implementation of "broadband China" strategy and speed-up reduction, operators have positioned video as a strategic basic business, IPTV is crossing the SD and HD stages, began to enter the ultra-high-definition phase, virtual reality (VR) is also moving from business demonstration to operational development, to bring users a panoramic video and interactive experience

The quality of VR video transmission puts forward higher requirements for the bandwidth, delay and packet loss rate of the network. The bandwidth requirement of VR video involves a variety of factors such as VR resolution, frame rate, color depth, field of view angle, encoding, transmission mode and so on. Getting the ideal VR experience requires close to gigabit bandwidth, less than 1.7E-5 packet loss rate, and an end-to-end delay of less than 20ms

It is expected that in 2019, with the continuous maturation of VR video coding and video transmission technology, VR will develop with the application of entertainment, education, medical, industrial and other industries, and become the main application of Gigabit access network. End-to-end evaluation of the ability of current network equipment to carry VR, the establishment of VR business User Perception evaluation system is also on the agenda, for the VR business in the Winter Olympics application and deployment ready

  1. Prospect
  2. Looking to the future,
  3.  optical access network continues to evolve towards ultra-bandwidth, virtualization, solid-shift fusion, and network construction is gradually transformed from policy-driven to market and technology-driven. Constructing a boutique broadband access network with accurate investment, full capacity and efficient operation and maintenance is not only the need to deal with the fierce competition in the fixed network broadband market in China, but also to promote the development of 5G and all kinds of new business




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