Recently, the Ministry of Industry and Information Technology officially issued 5G commercial licenses to China Telecom, China Mobile, China Unicom and China Radio and Television. This means that China’s 5G officially entered the commercial stage, and 5G business is about to move to thousands of households.

The most relevant 5G services related to users are undoubtedly large bandwidth and low latency services, such as video and games. However, in order for these business applications to provide users with a sufficiently good experience, it is not enough to rely on the wireless side of the 5G network, which requires end-to-end support for large bandwidth and low latency.

Nokia’s broadband access product line VP Heyninck Geert said that with the introduction of ultra-low latency, 25G PON technology with two key technologies for network slicing, Nokia is able to innovatively provide an end-to-end complete network deployment solution, including mobile networks, optical transmission networks, and aggregation networks are accelerating the development of 5G services.

At present, Nokia has successfully carried out 25G PON concept verification with T-1 operators in North America and Japan in January 2019.

Heyninck Geert believes that 25G PON definitely has higher bandwidth than previous 2.5G or 10G PON. At the same time, Nokia’s 25G PON technology, through the use of Bell Labs’ original CO-DBA (Cooperative Dynamic Bandwidth Allocation) technology, can greatly reduce the delay introduced by the uplink time division mechanism on PON transmission to adapt to eCPRI preamble, VR interaction. Ultra-low latency sensitive services such as games are being developed on PON.

In addition, Nokia also introduced the SDN network slicing capability based on the standard YANG model on the 25G PON, which can allocate the resources and capabilities of the OLT to different types of services or different service providers in a very convenient manner, respectively for control management and resource allocation. In order to best meet their specific business needs, such as third-party service providers, mobile 3G/4G/5G transmission, corporate customers, home users and so on. Through network slicing orchestrator, Nokia NSP and Nokia Altiplano jointly control PON devices to provide end-to-end slicing capabilities.

It is worth mentioning that the concept of Nokia Broadband Anyhaul 25G Passive Optical Network (PON) demonstrates the feasibility of providing 25Gbps speed over existing fiber infrastructure. Coexisting with 2.5G and 10G PON technologies, 25G PON enables more wireless access sites to be connected on the same fiber, reducing costs.

In addition to 5G applications, 25G PON can also be used in home access scenarios. According to Heyninck geert’s game example, the delay is undoubtedly the most important factor in game applications. By adopting SDN technology on 25G PON, Nokia can construct a dedicated game network slice in the end-to-end network to meet the requirements. The low latency requirements of the game ensure the user’s gaming experience. At present, Nokia has successfully deployed game slicing with a customer on a network that does not have a dedicated game slice, allowing the game service to be rapidly expanded.