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Huawei: ubiquitous optical connection enables growth of telecommunications companies

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[Dubai, UAE, October 20, 2021] Zhang Yan, vice president of Huawei Optical Transport, delivered a keynote address on Ubiquitous optical connectivity drives business growth at the 2021 Ultra-Broadband Forum (UBBF). Zhang Yan shared the concept of building an all-optical target network (OTN) and proposed that it be deployed on wireless base stations and OLTs to build a End-to-end IP +. Optical network, allowing an optimal TCO and the future development of new services.

Zhang Yan, vice president of Huawei Optical Transport

New activities and cost reductions drive transformation of operator network, making all-optical target network the best way to drive growth

According to the development strategies of the major telecommunications operators, revenue growth and improved efficiency have become the goal of every operator. To increase their revenue, many telecom operators are developing new 2C, 2H and 2B services, such as 4K / 8K video, Cloud VR and high quality corporate private lines. These new services work best with high bandwidth, low latency, and differentiated SLA networks. To improve efficiency, telecom operators are striving to reduce operating costs, including reducing network TCO per bit, reducing carbon emissions, and adopting more automation technologies. All these elements bring new demands on the networks and lead to the transformation of the network.

Historically, optical networks have been the transmission technology with the optimal TCO. They have irreplaceable advantages such as ultra-high bandwidth, ultra-low latency, ultra-long lifecycle and energy savings. According to industry analysts, this means optical networks will become increasingly important in the future and will not be replaced for at least 20 years. Some large operators in Western Europe have started deploying OTN on wireless base stations and OLTs and are using end-to-end IP + optical networks to carry fixed broadband, mobile broadband and private line services. business.

Zhang Yan recommends that operators plan their transport networks on the basis of the all-optical target network. This network allows an optimal total cost of ownership and supports the future development of the services.

First, backbone networks must evolve into 3D mesh networks. The single wavelength 200G / 400G and Super C + L technologies are used to maximize the capacity of a single fiber to optimize the TCO per bit. In addition, E2E OXC and ASON are deployed to provide a differentiated service experience.

Second, metro networks must evolve towards all-optical networks. OTNs must be deployed at the edge of the metro network to implement a one-hop IP + optical network architecture. On-demand capacity expansion is then supported and the total cost of ownership can be reduced by 50%. Additionally, E2E OXC should be deployed to simplify site configurations and reduce the total cost of ownership of a single site.

Finally, the all-optical target network can deliver a differentiated experience to increase revenue per bit. It can also support future-oriented 8K / VR services, enabling the digitization of thousands of industries.

All-optical 3D backbone, reducing total cost of ownership per bit with greater single fiber capacity

The development of the network infrastructure that serves as the backbone is always guided by industry technology. Providing more single fiber capacity is an effective way to reduce the total cost of ownership per bit, including increasing the single wavelength rate, number of channels, and transmission distance. From 10G to today, 5,000 km of regenerator-less transmissions have become a standard requirement for consumer backbones. Currently, the widely adopted technology is the single wavelength 200G. With ultra-wideband C-band and Flexgrid ROADM, the transmission capability of 80 wavelengths and single 16T fiber can be supported. Next generation consumer technology will be a single wavelength of 400G. With ultra-wideband C + L band, transmission over 80 wavelengths can be supported, and single fiber capacity can be increased to 32 Tbps.

Huawei adopts various technological innovations to maximize the capacity of a single fiber and reduce the TCO per bit.

  • The first innovation is the ultra-high single wavelength ratio. In addition to the 200G single wavelength mainstream technology, Huawei is also leading the development of the future-oriented 800G single wavelength industry. Currently, Huawei supports 88T single fiber transmission capacity, which is 30% higher than the industry. The TCO per bit is continuously reduced.
  • The second innovation is the ultra broadband spectrum. Currently, Huawei supports the available 6 THz spectrum of the Super C band, which is 25% higher than in the industry. In addition, it can be upgraded smoothly to Super C + L, and the available spectrum reaches 11 THz, which is 15% more than that of the industry.
  • Finally, in May 2021, Huawei cooperated with one of the main European operators to carry out the test of the 1.6T single wavelength field network prototype in Germany, indicating that the implementation of the single 100T fiber is not far away.

All-optical metro: IP + Optical Frog Hop architecture achieves optimal total cost of ownership for the entire network and supports the development of future services

With the rapid development of 5G, FTTH and private line services, it is increasingly important to build an integrated FMEC support network. OTNs are deployed on wireless base stations or OLTs, and end-to-end OXC is deployed to simplify site configurations and build the IP + Optical One-hop Frog Hop architecture. This reduces the total cost of ownership across the entire network and at a single site and the latency across the network. It can support the development of new services in the future.

Huawei is adopting various technological innovations to support the deployment of OTN and reduce the TCO of each site.

  • At the access sites at the edge of the network, Huawei provides small size, large capacity and low power consumption edge OTN devices. These devices can be deployed with OLTs / IPRANs in all scenarios to support the full development of operators’ FMEC service.
  • To solve the problems faced by operators, such as the operation and maintenance of the complex network and the limited space of the equipment room, Huawei launched the OXC blade solution based on the existing OXC solution. This solution significantly saves equipment room space and device power consumption, and supports automatic optical layer commissioning, reducing operation and maintenance costs.
  • Huawei’s innovative liquid OTN solution supports flexible rigid OSU conduits from 2Mbps to 100Gbps and is fully compatible with popular OTN and MS-OTN networks. Supports SDH services, such as E1 and STM1 / 4/16, and smoothly integrates old SDH devices, helping operators to save a lot of equipment room space, electricity and deployment costs of fiber.

The OTN Premium private line is good for business and will be implemented in several industries in the future.

E2E OTN networks can also allow multiple OTN grade services to meet differentiated requirements.

  • Currently, OTN P2P private lines provide the highest quality service guarantee to corporate customers, helping operators improve monetization methods to increase revenue per bit. Over 90 private OTN networks have been built around the world, and each network has made high profits. ROI is generally less than a year.
  • For small and medium-sized businesses, Huawei has launched an innovative private line OTN P2MP solution, which reuses fixed broadband ODN infrastructure and provides fast and low-cost private line services for commercial buildings, helping operators to gain more market space in the digital transformation of various industries. China’s Guangdong Province alone has 12,000 commercial buildings and is expected to generate $ 1.5 billion in private line revenue per year.

Finally, Zhang Yan said that the future-oriented all-optical target network will enable businesses and individuals to enjoy better network services and enable a wide range of industries to improve their processes. Huawei is committed to providing the best and most advanced all-optical solutions to help customers create an all-optical target network with the best total cost of ownership.


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